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- Installation Start-Up and Configuration Instructions
Carrier 33ZCVVTZC 01 Installation Instructions PDF
en
Summary of Content for Carrier 33ZCVVTZC 01 Installation Instructions PDF
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. PC 111 Catalog No. 533-30011 Printed in U.S.A. Form 33ZC-13SI Pg 1 405 10-04 Replaces: NewBook 1 4
Tab 11a 13a
Installation, Start-Up and Configuration Instructions
Part Number 33ZCVVTZC-01
CONTENTS Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Zone Controller Hardware . . . . . . . . . . . . . . . . . . . . . . . . 2 Field-Supplied Hardware . . . . . . . . . . . . . . . . . . . . . . . . . 2 SPACE TEMPERATURE SENSOR OPTION BOARD PRIMARY AIR TEMPERATURE SENSOR SUPPLY AIR TEMPERATURE (SAT) SENSOR DUCT AIR TEMPERATURE SENSOR RELATIVE HUMIDITY SENSOR INDOOR AIR QUALITY (CO2) SENSOR Mount Zone Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 LOCATION MOUNTING Connect the Power Transformer . . . . . . . . . . . . . . . . . . 5 Install Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 SPACE TEMPERATURE SENSOR INSTALLATION SYSTEM PILOT PRIMARY AIR TEMPERATURE SENSOR
INSTALLATION DUCT TEMPERATURE SENSOR (33ZCSENDAT)
INSTALLATION SUPPLY AIR TEMPERATURE (33ZCSENSAT)
SENSOR INSTALLATION INDOOR AIR QUALITY SENSOR INSTALLATION HUMIDITY SENSOR (WALL-MOUNTED)
INSTALLATION Remote Occupancy Contact. . . . . . . . . . . . . . . . . . . . . 21 Connect the Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Modulating Baseboard Hydronic Heating . . . . . . . . 23 Connect the Carrier Communicating Network
Communication Bus . . . . . . . . . . . . . . . . . . . . . . . . . . 23 COMMUNICATION BUS WIRE SPECIFICATIONS CONNECTION TO THE COMMUNICATION BUS START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-29 Perform System Checkout . . . . . . . . . . . . . . . . . . . . . . 26 Network Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Initial Operation and Test. . . . . . . . . . . . . . . . . . . . . . . . 27 Fan and Heat Configuration and Test. . . . . . . . . . . . 27 System Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Status Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 CONFIGURATION TABLES . . . . . . . . . . . . . . . . . . . 29-39 Alarm Configuration Table . . . . . . . . . . . . . . . . . . . . . . 29 Terminal Service Configuration Table . . . . . . . . . . . 30 Damper Service Configuration Table . . . . . . . . . . . . 33 Holiday Configuration Table . . . . . . . . . . . . . . . . . . . . . 33 Linkage Configuration Table . . . . . . . . . . . . . . . . . . . . 33 Language Configuration Table . . . . . . . . . . . . . . . . . . 35
Master Service Configuration Table . . . . . . . . . . . . . 35 Time Schedule Configuration Table . . . . . . . . . . . . . 36 Option Service Configuration Table . . . . . . . . . . . . . 37 Set Point Configuration Table . . . . . . . . . . . . . . . . . . . 39 MAINTENANCE TABLES . . . . . . . . . . . . . . . . . . . . . 40-51 System Pilot Maintenance Table. . . . . . . . . . . . . . . . . 40 System Pilot Alternate Maintenance Table. . . . . . . 40 Linkage Maintenance Table . . . . . . . . . . . . . . . . . . . . . 41 Master Zone Maintenance Table . . . . . . . . . . . . . . . . . 43 Time Schedule Maintenance Table . . . . . . . . . . . . . . 44 System Commissioning Maintenance Table . . . . . 45 Zone Status Maintenance Table . . . . . . . . . . . . . . . . . 47 Zone Device Maintenance Table . . . . . . . . . . . . . . . . . 47 Zone Maintenance Table . . . . . . . . . . . . . . . . . . . . . . . . 47 Zone Commissioning Maintenance Table . . . . . . . 50 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-54 System Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . 51 Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 AIR SOURCES THAT SUPPORT LINKAGE NON-LINKAGE CONTROLLED AIR SOURCES System Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Air Terminal Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 APPENDIX A SYSTEM OPERATION
FLOW CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-58
SAFETY CONSIDERATIONS
SAFETY NOTE Air-conditioning equipment will provide safe and reli-
able service when operated within design specifications. The equipment should be operated and serviced only by authorized personnel who have a thorough knowledge of system operation, safety devices and emergency procedures.
Good judgement should be used in applying any manufacturers instructions to avoid injury to personnel or damage to equipment and property.
Disconnect all power to the unit before performing mainte- nance or service. Unit may automatically start if power is not disconnected. Electrical shock and personal injury could result.
If it is necessary to remove and dispose of mercury contac- tors in electric heat section, follow all local, state, and federal laws regarding disposal of equipment containing hazardous materials.
3V Control System VVT Zone Controller
Pressure Dependent Control
2
GENERAL
The zone controller is a single duct, fan powered, Variable Volume and Temperature (VVT) terminal control with a factory-integrated controller and actuator. The VVT zone con- troller maintains precise temperature control in the space by operating the terminal fan and regulating the flow of conditioned air into the space. Buildings with diverse loading conditions can be supported by controlling equipment heating and cooling sources or supplemental heat.
The VVT zone controller (33ZCVVTZC-01) provides dedicated control functions for single duct terminals with modulating heat, up to 3 stages of ducted heat, or combination baseboard and ducted heat. A relay board (33ZCOPTBRD-01) is required for heat or fan terminals.
Carriers 3V control system provides optimized equip- ment and component control through airside linkage. Linkage refers to the process through which data is exchanged between the air terminals and the air source that provides the supply air to those terminals. The process links the terminals and the air source to form a coordinated system. Linkage allows the air source to operate efficiently and reliably while responding to and satisfying changing conditions in the zones. Linkage also allows the terminals to respond properly to changes in the air source. A VVT zone controller configured as the Linkage Coordinator manages the flow of data between the air source and the VVT system zones.
Rooftop units, air handlers, fan coils, and water source heat pumps feature product integrated or factory-installed controls that are directly compatible with the 3V control system. The rooftop units, air handlers, fan coils, and water source heat pumps do not require any special hardware to be compatible with the Carrier linkage system. Consult your local Carrier representative for the complete list of compatible air source controllers. Figure 1 shows an example of a Carrier linkage system.
The VVT zone controllers are available factory-mounted to Carriers round and rectangular dampers. Round dampers are available in 6, 8, 10, 12, 14, and 16-in. sizes. Rectangular dampers are available in 8x10, 8x14, 8x18, and 8x24-in. sizes. All damper assemblies are equipped with an integrated duct temperature sensor.
INSTALLATION
General The VVT zone controller is a microprocessor- based direct digital control (DDC) controller that can be pur- chased or installed on variable volume and temperature (VVT) air terminals. It can be retrofitted on units manufactured by Carrier or other manufacturers to provide pressure dependent VVT control.
Each zone controller has the ability to function as a linkage coordinator for systems with up to 32 zones. As a linkage coordinator, a zone controller will retrieve and provide system information to the rooftop or air-handling equipment and other zone controllers. A zone controller can function as a stand alone device by installing a duct air sensor.
The zone controller is connected to a wall-mounted, field- supplied, space temperature sensor (SPT) in order to monitor zone temperature changes and satisfy zone demand.
On stand-alone applications or applications with ducted or modulating heat, the zone controller must be connected to a field-supplied supply air temperature (SAT) sensor to monitor the temperature of the air delivered by the air terminal. A System Pilot can be used to adjust set points, set operating parameters, and fully configure the zone controller or any device on the system. A System Pilot can also provide local space temperature, set point adjust, time broadcast, and sched- ule adjustment for a single dedicated or remote device.
Carriers network software can be connected to the system at the SPT sensor if Carrier network communication wiring is run to the SPT sensor. The network software can be used to adjust set points, set operating parameters, and fully configure the zone controller or any device on the system.
Zone Controller Hardware The zone controller consists of the following hardware: terminal control module torque-limiting integrated damper actuator plastic enclosure one no. 8 x 1/2-in. self-drilling sheet metal screw (to pre-
vent zone controller rotation) Figure 2 shows the zone controller physical details.
Field-Supplied Hardware Each zone controller re- quires the following field-supplied components to complete its installation: air terminal unit (unless factory installed when pur-
chased as factory-installed option an SAT [supply-air temperature] sensor is provided upstream of the damper blade)
round or rectangular mounting bracket (for retrofit applications)
space temperature sensor transformer 24 vac, 40 va two no. 10 x 1/2-in. sheet metal screws (to secure SAT
sensor to duct, if required) two no. 6-32 x 5/8-in. screws (to mount SPT [space tem-
perature] sensor base to electrical box) contactors (if required for fan or electric heat) supply air temperature sensor (required for terminal with
ducted heat) option board 33ZCOPTBRD-01 (required for auxiliary
heat or fan terminals) indoor air quality sensor (if required) relative humidity sensor (if required) one SPST (single pole, single throw) relay valve and actuator for hot water heat (if required) wire bushings (required when mounting SAT sensor in a duct
6-in. or less in diameter) primary air temperature sensor (if required) SPACE TEMPERATURE SENSOR Each zone control- ler requires a field-supplied Carrier space temperature sensor. There are three sensors available for this application: 33ZCT55SPT, Space Temperature Sensor with Override
Button 33ZCT56SPT, Space Temperature Sensor with Override
Button and Set Point Adjustment 33PILOT-01, System Pilot Space Temperature Sensor,
User Interface, and Configuration Device
The System Pilot is a user interface to the Zone Controller with a full complement of zone display features that can be used to configure and operate the Zone Controller. It has an SPT sensor and can transmit its value to the Zone Controller. The System Pilot communicates to the Zone Controller through the Zone Controllers dedicated Comm2 port or over the main communication bus through Comm1. OPTION BOARD The option board (33ZCOPTBRD-01) is required for use of auxiliary heat and fan control functions. The Option Board is field installed and provides four triac discrete outputs, three for supplemental heat and one for the fan output. PRIMARY AIR TEMPERATURE SENSOR A field- supplied, primary air temperature (PAT) sensor (part number 33ZCSENPAT) is used on a zone controller which is function- ing as a Linkage Coordinator for a non Carrier Network/ Linkage compatible air source.
3
PRIMARY BUS (BUS 0)
VVT ZONE CONTROLLER EQUIPPED AIR TERMINAL
SECONDARY BUS
DATA COLLECTION
OPTION
BRIDGE (RECOMMENDED)
SYSTEM MONITORING SOFTWARE
ROOFTOP UNIT
ROOFTOP UNIT
SYSTEM PILOT
CARRIER COMMUNICATING NETWORK
MAXIMUM OF 32 PER ROOFTOP/LINKAGE MASTER
MAXIMUM OF 8 LINKAGE MASTERS PER BUS
Fig. 1 Typical Carrier Linkage System
4
SUPPLY AIR TEMPERATURE (SAT) SENSOR The 33ZCSENSAT supply air temperature sensor is required for reheat applications or stand-alone operation. The sensor has an operating range of 40 to 245 F (40 to 118 C) and includes a 6-in. stainless steel probe and cable. DUCT AIR TEMPERATURE SENSOR The 33ZCSENDAT Duct Air Temperature Sensor is required for cooling only appli- cations on non-33CS or non-Carrier dampers. The sensor is used for supply air monitoring. The sensor has an operating range of 40 to 245 F (40 to 118 C) and includes a mounting grommet and 75-in. cable. RELATIVE HUMIDITY SENSOR The 33AMSENRHS000 relative humidity sensor is required for zone humidity control (dehumidification) when in a linked system with a rooftop unit equipped with a dehumidification device. Otherwise, the RH sensor is used for monitoring only. NOTE: The relative humidity sensor and CO2 sensor cannot be used on the same zone controller. INDOOR AIR QUALITY (CO2) SENSOR An indoor air quality sensor is required for optional demand control ventilation. The 33ZCSENCO2 CO2 sensor is an indoor, wall mounted sensor with an LED display. The 33ZCT55CO2 and 33ZCT56CO2 CO2 sensors are indoor, wall-mounted sensors without display. NOTE: The relative humidity sensor and CO2 sensor cannot be used on the same zone controller.
Mount Zone Controller (Retrofit Applica- tions) The zone controller is factory-mounted on Carrier round and rectangular dampers. When retrofitting a zone controller on an existing damper, perform the following procedures. LOCATION The zone controller must be mounted on the air terminals damper actuator shaft. For service access, there
should be at least 12 in. of clearance between the front of the zone controller and adjacent surfaces. Refer to Fig. 3. MOUNTING Perform the following steps to mount the zone controller:
1. When retrofitting a zone controller on an existing damper, prior to installing the zone controller, remove all existing hardware.
2. Round or rectangular damper brackets may be attached to the damper to provide a clearance for the damper bearing when the zone controller is installed on older style VVT dampers. The zone controller is used to determine the location of the bracket. Attach the bracket to the zone con- troller using a single screw through the anti-rotation tab.
3. Visually inspect the damper and determine the direction in which the damper shaft moves to open the damper clockwise (CW) or counterclockwise (CCW). Refer to Fig. 4. If the damper rotates CCW to open, it does not require any configuration changes. If the damper rotates CW to open, then the damper actuator logic must be reversed. This is done in the software when performing system start-up and damper calibration test. Do not attempt to change damper rotation by changing wiring. This will upset the damper position feedback potentiometer readings.
4. Rotate the damper shaft to the fully closed position. Note direction of rotation.
5. Press the release button on the actuator and rotate the clamp in the same direction that was required to close the damper in Step 4.
6. Press the release button on the actuator and rotate the actuator back one position graduation. Release the button and lock the actuator in this position.
35 in-lb (4 Nm) 80...110s
Assembled in USA by Belimo for CARRIER
10
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5
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MECHANICAL STOP
ACTUATOR
CLAMP ASSEMBLY
MANUAL OVERRIDE SWITCH
MOTHERBOARD ACCESS
WIRING ACCESS
WIRING KNOCKOUTS
Manual Override
Fig. 2 Zone Controller
5
7. Mount the zone controller to the terminal by sliding the damper shaft through the actuator clamp assembly. Secure the zone controller to the duct by installing the screw provided through the grommet in the anti-rotation tab or by attaching the mounting bracket to the damper. Be sure the floating grommet is in the center of the slot. Failure to center the grommet may cause the actuator to stick or bind.
8. Tighten the actuator clamp assembly to the damper shaft. Secure by tightening the two 10-mm nuts.
9. If the damper has less than 90 degrees of travel between the fully open and fully closed positions, then a mechani- cal stop must be set on the actuator. The mechanical stop prevents the damper from opening past the maximum damper position. To set the mechanical stop, perform the following procedure: a. Press the actuator release button and rotate the
damper to the fully open position. b. Using a Phillips screwdriver, loosen the appropri-
ate stop clamp screw. c. Move the stop clamp screw so that it contacts the
edge of the cam on the actuator. Secure the stop clamp screw in this position by tightening the screw.
10. Verify that the damper opens and closes. Press the actua- tor release button and rotate the damper. Verify that the damper does not rotate past the fully open position. Release the button and lock the damper in the fully open position.
NOTE: The actuator must rotate to the end of the actuator range in the fully closed position. For actuators with less than 90 degrees of travel, the opposite stop must be moved so the actuator travels to mid-range when fully open. Damper calibra- tion will fail if stops on actuator are not set correctly.
Connect the Power Transformer An individual, field-supplied, 24-vac power transformer is recommended for each zone controller. If multiple zone controllers are powered from one power transformer (100 va maximum for UL [Underwriters Laboratories] Class 2 conformance), maintain polarity on the power input terminals. All transformer secondaries are required to be grounded. Use only stranded copper conductors for all wiring to the zone controller. Wiring connections must be made in accordance with NEC (National Electrical Code) and local codes. Ground the transformer at the transformer location. Provide an 18-gage, green, chassis ground wire at the terminal.
The power supply is 24 vac 10% at 40 va (50/60 Hz). For VVT zone controllers, the power requirement sizing
allows for accessory water valves and for electric heat contac- tor(s). Water valves are limited to 15 va on both two-position and modulating hot water. The electric heat contactor(s) are limited to 10 va (holding) each. NOTE: If a water valve or electric heat contactor exceeds these limits, or external contactors are required for electric heat, then it is recommended a 60 va transformer be used. The maximum rating for any output is 20 va. NOTE: Do not run sensor or communication wiring in the same conduit with line-voltage wiring. NOTE: A conduit cover is provided and integrated with the zone controller.
Perform the following steps to connect the power transformer:
1. Install the field-supplied transformer in an electrical enclosure that conforms to NEC and local codes.
2. Connect 24 vac from the transformer as shown in the applicable wiring diagram (Fig. 5-13).
END VIEW INLET
ZONE CONTROLLER
ALLOW 12 CLEARANCE FOR SERVICE ACCESS TO CONTROL BOX
3 REF.
Fig. 3 Service Clearance for Zone Controller Mounting
AIR FLOW
AIR FLOW
CW TO OPEN, CCW TO CLOSE
CCW TO OPEN, CW TO CLOSE
Fig. 4 Damper Configuration
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S
up pl
y A
ir Te
m pe
ra tu
re S
en so
r S
P T
S
pa ce
Te m
pe ra
tu re
S en
so r
F ie
ld -S
up pl
ie d
W iri
ng Fa
ct or
y W
iri ng
N O
T E
:T he
S AT
m ay
be re
lo ca
te d
to se
ns e
an d
co nt
ro ld
uc te
d he
at .
1104
9
S A
T
O Y
B I
24 V
A C
R B
T 56S A
T
+ 24 G N
D
H E
A T
2
H E
A T
3
G N
D
24 V
A C
24 V
A C
24 V
A C
FA N
V ol
ta ge
Li ne
co m
m un
ic at
io n
D ed
ic at
ed S
ys te
m P
ilo t
co m
m un
ic at
io n
Tr an
sf or
m er
gr ou
nd
H E
A T
1
35 in
-lb (4
N m
) 80
... 11
0s
A ss
e m
b le
d in
U S
A b
y B
e lim
o fo
r C
A R
R IE
R
24 V
A C
/D C
50 /6
0H z
3V A
2W
ye l
bl u
or a
W IP
5K
C O
M 1 2
3 bl
k re
d w
ht
M a
n u
a l
O v
e rr
id e
C ha
ss is
G ro
un d
N et
w or
k
N et
w or
k
AUX
24VAC
G N
D
G N
D
R H
/IA Q
P A
T
G N
D
CCW
COM
CW
+10V
DMPPOS
GND
AUXDMP
GND
H 2
H 3
H 1
S P
T
R E
M O
T E
S P
T
+
+
+
G N
D G
N D
-
-
-
J1
1 2 3 G
N D
F ig
.8
V V
T
Z o
n e
C o
n tr
o lle
r W
ir in
g
S in
g le
D u
ct ,T
h re
e S
ta g
e E
le ct
ri c
H ea
t
LE G
E N
D C
C W
C
ou nt
er cl
oc kw
is e
PA T
P
rim ar
y A
ir Te
m pe
ra tu
re S
en so
r C
O M
C
om m
on R
H
R el
at iv
e H
um id
ity C
W
C lo
ck w
is e
S A
T
S up
pl y
A ir
Te m
pe ra
tu re
S en
so r
D M
P P
O S
D
am pe
r P
os iti
on S
P T
S
pa ce
Te m
pe ra
tu re
S en
so r
G N
D
G ro
un d
F ie
ld -S
up pl
ie d
W iri
ng IA
Q
In do
or A
ir Q
ua lit
y Fa
ct or
y W
iri ng
N O
T E
:T he
S AT
m ay
be re
lo ca
te d
to se
ns e
an d
co nt
ro ld
uc te
d he
at .
1104
10
S A
T
O Y
B I
24 V
A C
R B
T 56
S A
T
+ 24 G N
D
H E
A T
2
H E
A T
3
G N
D
24 V
A C
24 V
A C
24 V
A C
FA N
V ol
ta ge
Li ne
co m
m un
ic at
io n
D ed
ic at
ed S
ys te
m P
ilo t
co m
m un
ic at
io n
Tr an
sf or
m er
gr ou
nd
H E
A T
1
35 in
-lb (4
N m
) 80
... 11
0s
A ss
e m
b le
d in
U S
A b
y B
e lim
o fo
r C
A R
R IE
R
24 V
A C
/D C
50 /6
0H z
3V A
2W
ye l
bl u
or a
W IP
5K
C O
M 1 2
3 bl
k re
d w
ht
M a
n u
a l
O v
e rr
id e
C ha
ss is
G ro
un d
N et
w or
k
N et
w or
k AUX
24VAC
G N
D
G N
D
R H
/IA Q
P A
T
G N
D
CCW
COM
CW
+10V
DMPPOS
GND
AUXDMP
GND
H 2
H 3
H W
V
N or
m al
ly op
en or
no rm
al ly
cl os
ed va
lv e
m ay
be us
ed
S P
T
R E
M O
T E
S P
T
+ +
G N
D
G N
D
G N
D
-
-
-
J1
+ 1 2 3
F
ig .9
V
V T
Z
o n
e C
o n
tr o
lle r
W ir
in g
S
in g
le D
u ct
,C o
m b
in at
io n
B as
e B
o ar
d ,D
u ct
ed H
ea t
LE G
E N
D C
C W
C
ou nt
er cl
oc kw
is e
PA T
P
rim ar
y A
ir Te
m pe
ra tu
re S
en so
r C
O M
C
om m
on R
H
R el
at iv
e H
um id
ity C
W
C lo
ck w
is e
S A
T
S up
pl y
A ir
Te m
pe ra
tu re
S en
so r
D M
P P
O S
D
am pe
r P
os iti
on S
P T
S
pa ce
Te m
pe ra
tu re
S en
so r
G N
D
G ro
un d
F ie
ld -S
up pl
ie d
W iri
ng H
W V
H
ot W
at er
V al
ve Fa
ct or
y W
iri ng
IA Q
In
do or
A ir
Q ua
lit y
N O
T E
:T he
S AT
m ay
be re
lo ca
te d
to se
ns e
an d
co nt
ro ld
uc te
d he
at .
1104
11
S A
T
O Y
B I
24 V
A C
R B
T 56
S A
T
+ 24
V
G N
D
H E
A T
2
H E
A T
3
G N
D
24 V
A C
24 V
A C
24 V
A C
FA N
V ol
ta ge
Li ne
co m
m un
ic at
io n
D ed
ic at
ed S
ys te
m P
ilo t
co m
m un
ic at
io n
Tr an
sf or
m er
gr ou
nd
H E
A T
1
35 in
-lb (4
N m
) 80
... 11
0s
A ss
e m
b le
d in
U S
A b
y B
e lim
o fo
r C
A R
R IE
R
24 V
A C
/D C
50 /6
0H z
3V A
2W
ye l
bl u
or a
W IP
5K
C O
M 1 2
3 bl
k re
d w
ht
M a
n u
a l
O v
e rr
id e
C ha
ss is
G ro
un d
N et
w or
k
N et
w or
k
AUX
24VAC
G N
D
G N
D
R H
/IA Q
P A
T
G N
D
CCW
COM
CW
+10V
DMPPOS
GND
AUXDMP
GND
H W
V
F an
R el
ay
F an
M ot
or
S P
T
R E
M O
T E
S P
T
+
+
+
G N
D
G N
D
G N
D
-
-
-
J1
1 2 3
F
ig .1
0
V V
T
Z o
n e
C o
n tr
o lle
r W
ir in
g
F an
B o
x T
w o
-P o
si ti
o n
H o
t W
at er
H ea
t
LE G
E N
D C
C W
C
ou nt
er cl
oc kw
is e
PA T
P
rim ar
y A
ir Te
m pe
ra tu
re S
en so
r C
O M
C
om m
on R
H
R el
at iv
e H
um id
ity C
W
C lo
ck w
is e
S A
T
S up
pl y
A ir
Te m
pe ra
tu re
S en
so r
D M
P P
O S
D
am pe
r P
os iti
on S
P T
S
pa ce
Te m
pe ra
tu re
S en
so r
G N
D
G ro
un d
F ie
ld -S
up pl
ie d
W iri
ng H
W V
H
ot W
at er
V al
ve Fa
ct or
y W
iri ng
IA Q
In
do or
A ir
Q ua
lit y
N O
T E
:T he
S AT
m ay
be re
lo ca
te d
to se
ns e
an d
co nt
ro ld
uc te
d he
at .
1104
12
S A
T
O Y
B I
24 V
A C
R B
T 56
S A
T
+ 24 G N
D
H E
A T
2
H E
A T
3
G N
D
24 V
A C
24 V
A C
24 V
A C
FA N
V ol
ta ge
Li ne
co m
m un
ic at
io n
D ed
ic at
ed S
ys te
m P
ilo t
co m
m un
ic at
io n
Tr an
sf or
m er
gr ou
nd
H E
A T
1
35 in
-lb (4
N m
) 80
... 11
0s
A ss
e m
b le
d in
U S
A b
y B
e lim
o fo
r C
A R
R IE
R
24 V
A C
/D C
50 /6
0H z
3V A
2W
ye l
bl u
or a
W IP
5K
C O
M 1 2
3 bl
k re
d w
ht
M a
n u
a l
O v
e rr
id e
C ha
ss is
G ro
un d
N et
w or
k
N et
w or
k AUX
24VAC
G N
D
G N
D
R H
/IA Q
P A
T
G N
D
CCW
COM
CW
+10V
DMPPOS
GND
AUXDMP
GND
F an
R el
ay
F an
M ot
or
O P C L
C O M
N or
m al
ly op
en or
no rm
al ly
cl os
ed va
lv e
m ay
be us
ed
S P
T
H W
V
R E
M O
T E
S P
T
+ +
G N
D G
N D
- -
J1
+ - G N
D
1 2 3
F
ig .1
1
V V
T
Z o
n e
C o
n tr
o lle
r W
ir in
g
F an
B o
x, M
o d
u la
ti n
g H
o t
W at
er H
ea t
LE G
E N
D C
C W
C
ou nt
er cl
oc kw
is e
PA T
P
rim ar
y A
ir Te
m pe
ra tu
re S
en so
r C
O M
C
om m
on R
H
R el
at iv
e H
um id
ity C
W
C lo
ck w
is e
S A
T
S up
pl y
A ir
Te m
pe ra
tu re
S en
so r
D M
P P
O S
D
am pe
r P
os iti
on S
P T
S
pa ce
Te m
pe ra
tu re
S en
so r
G N
D
G ro
un d
F ie
ld -S
up pl
ie d
W iri
ng H
W V
H
ot W
at er
V al
ve Fa
ct or
y W
iri ng
IA Q
In
do or
A ir
Q ua
lit y
N O
T E
:T he
S AT
m ay
be re
lo ca
te d
to se
ns e
an d
co nt
ro ld
uc te
d he
at .
1104
13
S A
T
O Y
B I
B
24 V
A C
R B
T 56
S A
T
+ 24
G N
D
H E
A T
2
H E
A T
3
G N
D
24 V
A C
24 V
A C
24 V
A C
FA N
V ol
ta ge
Li ne
co m
m un
ic at
io n
D ed
ic at
ed S
ys te
m P
ilo t
co m
m un
ic at
io n
Tr an
sf or
m er
gr ou
nd
H E
A T
1
35 in
-lb (4
N m
) 80
... 11
0s
A ss
e m
b le
d in
U S
A b
y B
e lim
o fo
r C
A R
R IE
R
24 V
A C
/D C
50 /6
0H z
3V A
2W
ye l
bl u
or a
W IP
5K
C O
M 1 2
3 bl
k re
d w
ht
M a
n u
a l
O v
e rr
id e
C ha
ss is
G ro
un d
N et
w or
k
N et
w or
k
B
AUX
24VAC
G N
D
G N
D
R H
/IA Q
P A
T
G N
D
CCW
COM
CW
+10V
DMPPOS
GND
AUXDMP
GND
F an
R el
ay
F an
M ot
or
N or
m al
ly op
en or
no rm
al ly
cl os
ed va
lv e
m ay
be us
ed
H 2
H 3
H W
V
S P
T
R E
M O
T E
S P
T
+ +
-
-
-
G N
D
G N
D
G N
D
J1
+ 1 2 3
F
ig .1
2
V V
T
Z o
n e
C o
n tr
o lle
r W
ir in
g
F an
B o
x, C
o m
b in
at io
n B
as e
B o
ar d
,D u
ct ed
H ea
t
LE G
E N
D C
C W
C
ou nt
er cl
oc kw
is e
PA T
P
rim ar
y A
ir Te
m pe
ra tu
re S
en so
r C
O M
C
om m
on R
H
R el
at iv
e H
um id
ity C
W
C lo
ck w
is e
S A
T
S up
pl y
A ir
Te m
pe ra
tu re
S en
so r
D M
P P
O S
D
am pe
r P
os iti
on S
P T
S
pa ce
Te m
pe ra
tu re
S en
so r
G N
D
G ro
un d
F ie
ld -S
up pl
ie d
W iri
ng H
W V
H
ot W
at er
V al
ve Fa
ct or
y W
iri ng
IA Q
In
do or
A ir
Q ua
lit y
N O
T E
:T he
S AT
m ay
be re
lo ca
te d
to se
ns e
an d
co nt
ro ld
uc te
d he
at .
1104
14
S A
T
O Y
B I
24 V
A C
R B
T 56
S A
T
+ 24
G N
D
H E
A T
2
H E
A T
3
G N
D
24 V
A C
24 V
A C
24 V
A C
FA N
V ol
ta ge
Li ne
co m
m un
ic at
io n
D ed
ic at
ed S
ys te
m P
ilo t
co m
m un
ic at
io n
Tr an
sf or
m er
gr ou
nd
H E
A T
1
35 in
-lb (4
N m
) 80
... 11
0s
A ss
e m
b le
d in
U S
A b
y B
e lim
o fo
r C
A R
R IE
R
24 V
A C
/D C
50 /6
0H z
3V A
2W
ye l
bl u
or a
W IP
5K
C O
M 1 2
3 bl
k re
d w
ht
M a
n u
a l
O v
e rr
id e
C ha
ss is
G ro
un d
N et
w or
k
N et
w or
k AUX
24VAC
G N
D
G N
D
R H
/IA Q
P A
T
G N
D
CCW
COM
CW
+10V
DMPPOS
GND
AUXDMP
GND
F an
R el
ay
F an
M ot
or
H 2
H 1
H 3
S P
T
R E
M O
T E
S P
T
+ - -+
G N
D G
N D
G N
D
J1 -+
1 2 3
F
ig .1
3
V V
T
Z o
n e
C o
n tr
o lle
r W
ir in
g
F an
B o
x, T
h re
e- S
ta g
e E
le ct
ri c
H ea
t
LE G
E N
D C
C W
C
ou nt
er cl
oc kw
is e
PA T
P
rim ar
y A
ir Te
m pe
ra tu
re S
en so
r C
O M
C
om m
on R
H
R el
at iv
e H
um id
ity C
W
C lo
ck w
is e
S A
T
S up
pl y
A ir
Te m
pe ra
tu re
S en
so r
D M
P P
O S
D
am pe
r P
os iti
on S
P T
S
pa ce
Te m
pe ra
tu re
S en
so r
G N
D
G ro
un d
F ie
ld -S
up pl
ie d
W iri
ng IA
Q
In do
or A
ir Q
ua lit
y Fa
ct or
y W
iri ng
N O
T E
:T he
S AT
m ay
be re
lo ca
te d
to se
ns e
an d
co nt
ro ld
uc te
d he
at .
1104
15
Install Sensors SPACE TEMPERATURE SENSOR INSTALLATION A space temperature sensor must be installed for each zone controller. There are two types of SPT sensors available from Carrier: the 33ZCT55SPT space temperature sensor with timed override button and the 33ZCT56SPT space temperature sen- sor with timed override button and set point adjustment. See Fig. 14.
The space temperature sensor is used to measure the building interior temperature and should be located on an interior building wall. The sensor wall plate accommodates the NEMA standard 2 x 4 junction box. The sensor can be mounted directly on the wall surface if acceptable by local codes.
Do not mount the sensor in drafty locations such as near air conditioning or heating ducts, over heat sources such as baseboard heaters, radiators, or directly above wall mounted lighting dimmers. Do not mount the sensor near a window which may be opened, near a wall corner, or a door. Sensors mounted in these areas will have inaccurate and erratic sensor readings.
The sensor should be mounted approximately 5 ft from the floor, in an area representing the average temperature in the space. Allow at least 4 ft between the sensor and any corner and mount the sensor at least 2 ft from an open doorway.
Install the sensor as follows (see Fig. 15): 1. Locate the two Allen type screws at the bottom of the
sensor. 2. Turn the two screws clockwise to release the cover from
the sensor wall mounting plate. 3. Lift the cover from the bottom and then release it from
the top fasteners. 4. Feed the wires from the electrical box through the
opening in the center of the sensor mounting plate. 5. Using two no. 6-32 x 1 mounting screws (provided with
the sensor), secure the sensor to the electrical box. 6. Use 20 gage wire to connect the sensor to the controller.
The wire is suitable for distances of up to 500 ft. Use a three-conductor shielded cable for the sensor and set point adjustment connections. The standard Carrier Network communication cable may be used. If the set point adjustment (slidebar) is not required, then an unshielded, 18 or 20 gage, two-conductor, twisted pair cable may be used. The Carrier Network service jack requires a separate, shielded communication cable. Always use separate cables for communication and sensor wiring. (Refer to Fig. 16 for wire terminations.)
7. Replace the cover by inserting the cover at the top of the mounting plate first, then swing the cover down over the lower portion. Rotate the two Allen head screws counter- clockwise until the cover is secured to the mounting plate and locked in position.
8. For more sensor information, see Table 1 for thermistor resistance vs temperature values.
NOTE: Clean sensor with damp cloth only. Do not use solvents. Wiring the Space Temperature Sensor (33ZCT55SPT and 33ZCT56SPT) To wire the sensor, perform the following (see Fig. 16 and 17):
1. Identify which cable is for the sensor wiring. 2. Strip back the jacket from the cables for at least 3-inches.
Strip 1/4-in. of insulation from each conductor. Cut the shield and drain wire from the sensor end of the cable.
3. Connect the sensor cable as follows: a. Connect one wire from the cable (RED) to the SPT
terminal on the controller. Connect the other end of the wire to the left terminal on the SEN terminal block of the sensor.
b. Connect another wire from the cable (BLACK) to the GND terminal on the controller. Connect the other end of the wire to the remaining open termi- nal on the SEN terminal block.
WarmCool
Fig. 14 Space Temperature Sensor (P/N 33ZCT56SPT Shown)
NOTE: Dimensions are in inches.
Fig. 15 Space Temperature Sensor and Wall Mounted Humidity Sensor Mounting
16
c. On 33ZCT56SPT thermostats, connect the remain- ing wire (WHITE/CLR) to the T56 terminal on the controller. Connect the other end of the wire to the right most terminal on the SET terminal block.
d. In the control box, install a No. 6 ring type crimp lug on the shield drain wire. Install this lug under the mounting screw in the upper right corner of the controller (just above terminal T1).
e. On 33ZCT56SPT thermostats install a jumper between the two center terminals (right SEN and left SET).
Wiring the Network Communication Service Jack See Fig. 16-18. To wire the service jack, perform the following:
1. Strip back the jacket from the communication cable(s) for at least 3 inches. Strip 1/4-in. of insulation from each conductor. Remove the shield and separate the drain wire from the cable. Twist together all the shield drain wires and fasten them together using an closed end crimp lug or a wire nut. Tape off any exposed bare wire to prevent shorting.
2. Connect the CCN + signal wire(s) (RED) to Terminal 5.
3. Connect the CCN signal wire(s) (BLACK) to Terminal 2.
4. Connect the CCN GND signal wire(s) (WHITE/CLR) to Terminal 4.
Before wiring the Carrier proprietary network connection, refer to the Connect the Carrier Communicating Network Communication Bus section on page 23, for communication bus wiring and cable selection. The cable selected must be identical to the communication bus wire used for the entire network.
The other end of the communication bus cable must be connected to the remainder of the communication bus. If the cable is installed as a T-tap into the bus, the cable length cannot exceed 100 ft. Wire the service jack of the sensor in a daisy chain arrangement with other equipment. Refer to the Connect the Carrier Communicating Network Communication Bus sec- tion, page 23, for more details. SYSTEM PILOT Refer to System Pilot installation in- structions for information on installing and using the System Pilot.
2 3 4 5 61
SW1
SEN
BLK RED
RED(+) WHT(GND)
BLK(-) COM BUS
SENSOR WIRING
2 3 4 5 61
SW1
SEN SET
Cool Warm
WHT BLK RED
RED(+) WHT(GND)
BLK(-) COM BUS
SENSOR WIRING
JUMPER TERMINALS AS SHOWN
Fig. 16 Space Temperature Sensor Wiring (33ZCT55SPT)
Fig. 17 Space Temperature Sensor Wiring (33ZCT56SPT)
17
W a rC o o
100 FT. MAXIMUM
AIR TERMINAL UNIT (TYP)
ZONE CONTROLLER
2 COND TWISTED CABLE OR 3 COND CABLE (TEMP SENSOR WIRING) (TYP)
COMM BUS
SPACE TEMPERATURE
SENSOR
3 COND COMM CABLE (TYP)
W a rC o o
AIR TERMINAL UNIT (TYP)
ZONE CONTROLLER
2 COND TWISTED CABLE OR 3 COND CABLE (TEMP SENSOR WIRING) (TYP)
SPACE TEMPERATURE
SENSOR
DISTANCE GREATER THAN 100 FT.COMM BUS
SYSTEM PILOT
SYSTEM PILOT
Fig. 18 Communication Bus Wiring to Zone Controller
Wiring when distance between zone controller and space temperature sensor is greater than 100 feet
Wiring when distance between zone controller and space temperature sensor is 100 feet or less
18
Table 1 Thermistor Resistance vs Temperature Values for Space Temperature Sensor, Return-Air Temperature Sensor, and Supply-Air Temperature Sensor
PRIMARY AIR TEMPERATURE SENSOR INSTALLA- TION A primary air temperature (PAT) sensor is used on a zone controller which is functioning as a Linkage Coordinator for a non Carrier Network/Linkage compatible air source. The part number is 33ZCSENPAT. See Fig. 19.
When used on a zone controller, try to select a zone control- ler which will allow installation of the PAT sensor in the main trunk, as close to the air source as possible. See Fig. 20. DUCT TEMPERATURE SENSOR (33ZCSENDAT) INSTALLATION The 33ZCSENDAT Duct Air Tempera- ture Sensor is required for cooling only applications on non- Carrier dampers. The sensor is used for supply air monitoring. The sensor has an operating range of 40 to 245 F (40 to 118 C) and includes a mounting grommet and 75-in. cable. The duct temperature sensor must be installed in the supply air duct. See Fig. 21 for sensor details.
The duct temperature sensor should be moved to a location which will provide the best sensing of the supply-air tempera- ture during heating and cooling.
For systems using a ducted supply, the duct temperature sensor should be located in the supply duct downstream of the discharge of the air source and before the bypass damper to allow good mixing of the supply airstream.
The 33ZCSENDAT duct sensor is a small epoxy sensor that is 11/4-in. long. A grommet is provided for filling the hole around the sensor cable after the sensor is located in the duct.
See Fig. 22 for mounting location.
Do not run sensor or relay wires in the same conduit or race- way with Class 1 AC service wiring. Do not abrade, cut, or nick the outer jacket of the cable. Do not pull or draw cable with a force that may harm the physical or electrical properties. Avoid splices in any control wiring.
Perform the following steps to connect the duct temperature sensor to the bypass controller:
1. Drill or punch a 1/4-in. hole in the supply duct. See Fig. 22. Duct sensor can be installed to hang from top of duct or from the sides. Sensor probe can touch side of duct.
2. Push sensor through hole in the supply duct. Snap the grommet into the hole until it is secure. Pull on the leads of the duct sensor until the sensor is snug against the grommet.
3. Connect the sensor leads to the bypass controllers termi- nal board at the terminals labeled SAT and GND. See Fig. 5-13 for wiring. If extending cable length beyond 8 ft, use plenum rated, 20 AWG (American Wire Gage), twisted pair wire. Sensor wiring does not have polarity. Either lead can be wired to either terminal.
4. Neatly bundle and secure excess wire. 5. Using electrical tape, insulate any exposed lead to prevent
shorting. 6. Connect shield to earth ground (if shielded wire is used).
SUPPLY AIR TEMPERATURE (33ZCSENSAT) SENSOR INSTALLATION The 33ZCSENSAT supply air tempera- ture sensor is required for reheat applications or stand-alone operation. The sensor has an operating range of 40 to 245 F (40 to 118 C) and includes a 6-in. stainless steel probe and cable. The sensor is factory-supplied but must be relocated for ducted heat. The SAT must be installed in the duct downstream from the air terminal. The SAT sensor is also sometimes called a duct air temperature sensor. Part number 33ZCSENSAT may be used in place of the factory-installed sensor.
The SAT sensor probe is 6 inches in length. The tip of the probe must not touch the inside of the duct. Use field-supplied bushings as spacers when mounting the probe in a duct that is 6 in. or less in diameter.
If the unit is a cooling only unit, the SAT is not required. If the unit is equipped with electric reheat, ensure that the
sensor is installed at least 2 ft downstream of the electric heater. See Fig. 23 for the sensor location in this application.
If the unit has an octopus connected directly at the discharge, install the sensor in the octopus. If the unit has an electric heater, the two-foot minimum distance between the sensor and the heater must be maintained. See Fig. 23 for the sensor location in this application.
TEMP (C)
TEMP (F)
RESISTANCE (Ohms)
40 40 335,651 35 31 242,195 30 22 176,683 25 13 130,243 20 4 96,974 15 5 72,895 10 14 55,298
5 23 42,315 0 32 32,651 5 41 25,395
10 50 19,903 15 59 15,714 20 68 12,494 25 77 10,000 30 86 8,056 35 95 6,530 40 104 5,325 45 113 4,367 50 122 3,601 55 131 2,985 60 140 2,487 65 149 2,082 70 158 1,752
Disconnect electrical power before wiring the bypass con- troller. Electrical shock, personal injury, or damage to the fan coil controller can result.
Disconnect electrical power before wiring the zone control- ler. Electrical shock, personal injury, or damage to the zone controller can result.
19
.225/ .245 (5.72/6.22)
75.0 .5 (1905)
1.00 (25.4)
1.25 (31.8)
0.06 (1.5)
Fig. 19 Primary Air Temperature Sensor (Part Number 33ZCSENPAT)
Fig. 20 Primary Air Temperature Sensor Installation (Unit Discharge Location)
NOTE: Dimensions are in inches (millimeters).
Fig. 21 33ZCSENSDAT Duct Sensor
20
Do not run sensor or relay wires in the same conduit or race- way with Class 1 AC or DC service wiring. Do not abrade, cut, or nick the outer jacket of the cable. Do not pull or draw cable with a force that may harm the physical or electrical properties. Avoid splices in any control wiring.
Perform the following steps to connect the SAT sensor to the zone controller:
1. Locate the opening in the control box. Pass the sensor probe through the hole.
2. Drill or punch a 1/4-in. hole in the duct downstream of the unit, at a location that conforms to the requirements shown in Fig. 23.
3. Use two field-supplied, self-drilling screws to secure the sensor probe to the duct. Use field-supplied bushings as spacers when installing the sensor probe in a duct 6 in. or less in diameter.
Perform the following steps if state or local code requires the use of conduit, or if your installation requires a cable length of more than 8 ft:
1. Remove the center knockout from a field-supplied 4 x 2-in. junction box and secure the junction box to the duct at the location selected for the sensor probe.
2. Drill a 1/2-in. hole in the duct through the opening in the junction box.
3. Connect a 1/2-in. nominal field-supplied conduit between the zone controller enclosure and the junction box.
4. Pass the sensor probe wires through the conduit and insert the probe in the duct. Use field-supplied bushings as spacers when installing the sensor probe in a duct 6 in. or less in diameter.
5. Secure the probe to the duct with two field-supplied self- drilling screws.
6. If extending cable length beyond 8 ft, use plenum rated, 20 AWG (American Wire Gage), twisted pair wire.
7. Connect the sensor leads to the zone controllers wiring harness terminal board at the terminals labeled SAT and GND.
8. Neatly bundle and secure excess wire. INDOOR AIR QUALITY SENSOR INSTALLATION The indoor air quality (IAQ) sensor accessory monitors carbon dioxide levels. This information is used to modify the position of the outdoor air dampers to admit more outdoor air as required to provide the desired ventilation rate. Two types of sensors are supplied. The wall sensor can be used to monitor the conditioned air space; the duct sensor monitors the return air duct. Both wall and duct sensors use infrared technology to measure the levels of CO2 present in the air. The wall sensor is available with or without an LCD (liquid crystal display) read- out to display the CO2 level in ppm. See Fig. 24.
The sensor part number is 33ZCSENCO2. To mount the sensor, refer to the installation instructions shipped with the accessory kit.
The CO2 sensors (33ZCSENCO2) factory set for a range of 0 to 2000 ppm and a linear voltage output of 0 to 10 vdc. Figure 25 shows ventilation rates for various CO2 set points when outside air with a typical CO2 level of 350 ppm is used. Refer to the instructions supplied with the CO2 sensor for electrical require- ments and terminal locations. The zone controller requires a 24 vac, 25 va transformer to provide power to the sensor.
To convert the CO2 sensor into a duct-mounted CO2 sensor, the duct-mounted aspirator (33ZCASPCO2) will need to be purchased.
To accurately monitor the quality of the air in the condi- tioned air space, locate the sensor near the return air grille so it senses the concentration of CO2 leaving the space. The sensor should be mounted in a location to avoid direct breath contact.
Do not mount the space sensor in drafty areas such as near supply ducts, open windows, fans, or over heat sources. Allow at least 3 ft between the sensor and any corner. Avoid mounting the sensor where it is influenced by the supply air; the sensor gives inaccurate readings if the supply air is blown directly onto the sensor or if the supply air does not have a chance to mix with the room air before it is drawn into the return air stream.
To accurately monitor the quality of the air in the return air duct, locate the sensor at least 6 in. upstream or 15 in. downstream of a 90-degree turn in the duct. The downstream location is preferred. Mount the sensor in the center of the duct.
IMPORTANT: If the sensor is mounted in the return-air duct, readjust the mixed-air dampers to allow a small amount of air to flow past the return-air damper when- ever the mixing box is fully open to the outside air. If the damper is not properly adjusted to provide this mini- mum airflow, the sensor may not detect the indoor-air quality during the economizer cycle.
ZC
AIR TERMINAL
UNIT OCTOPUS
HEAT SAT
2 FT. MIN.
PRIMARY AIR INLET
ZC
AIR TERMINAL
UNIT
HEAT SAT
2 FT. MIN.
PRIMARY AIR INLET
ZC Zone Controller
Fig. 23 Supply Air Temperature Probe (Part No. 33ZCSENSAT) Locations
UNIT WITH ELECTRIC REHEAT
UNIT WITH OCTOPUS DRILL 1/4" HOLE IN TOP OF DUCT AND LET SENSOR HANG DOWN
ALTERNATE INSTALLATION LOCATION INSIDE OF DUCT
SUPPLY DUCT
Fig. 22 DAT Installation Location
21
Indoor Air Quality Sensor Wiring To wire the sensors after they are mounted in the conditioned air space and return air duct, see Fig. 26 and the instructions shipped with the sen- sors. For each sensor, use two 2-conductor 18 AWG twisted- pair cables (unshielded) to connect the separate isolated 24 vac power source to the sensor and to connect the sensor to the con- trol board terminals. To connect the sensor to the control board, identify the positive (+) PIN-8 and ground (GND) PIN-7 termi- nals on the sensor and connect the positive terminal to terminal RH/IAQ and connect the ground terminal to terminal GND. HUMIDITY SENSOR (WALL-MOUNTED) INSTALLA- TION The accessory space humidity sensor is installed on an interior wall to measure the relative humidity of the air with- in the occupied space. See Fig. 27.
The use of a standard 2 x 4-in. electrical box to accommo- date the wiring is recommended for installation. The sensor can be mounted directly on the wall, if acceptable by local codes.
If the sensor is installed directly on a wall surface, install the humidity sensor using 2 screws and 2 hollow wall anchors (field-supplied); do not overtighten screws. See Fig. 15.
The sensor must be mounted vertically on the wall. The Carrier logo should be oriented correctly when the sensor is properly mounted.
DO NOT mount the sensor in drafty areas such as near heat- ing or air-conditioning ducts, open windows, fans, or over heat sources such as baseboard heaters, radiators, or wall-mounted light dimmers. Sensors mounted in those areas will produce in- accurate readings.
Avoid corner locations. Allow at least 4 ft between the sen- sor and any corner. Airflow near corners tends to be reduced, resulting in erratic sensor readings.
Sensor should be vertically mounted approximately 5 ft up from the floor, beside the space temperature sensor.
For distances up to 500 feet, use a 3-conductor, 18 or 20 AWG cable. A communication cable can be used, although the shield is not required. The shield must be removed from the sensor end of the cable if this cable is used. See Fig. 28 for wiring details.
The power for the sensor is provided by the control board. The board provides 24 vdc for the sensor. No additional power source is required.
To wire the sensor, perform the following: 1. At the sensor, remove 4-in. of jacket from the cable. Strip
1/4-in. of insulation from each conductor. Route the cable through the wire clearance opening in the center of the sensor. See Fig. 28.
2. Connect the RED wire to the sensor screw terminal marked (+).
3. Install one lead from the resistor (supplied with the sen- sor) and the WHITE wire, into the sensor screw terminal marked (). After tightening the screw terminal, test the connection by pulling gently on the resistor lead.
4. Connect the remaining lead from the resistor to the BLACK wire and secure using a closed end type crimp connector or wire nut.
5. Using electrical tape, insulate any exposed resistor lead to prevent shorting.
6. At the control box, remove the jacket from the cable and route the RED conductor over to the left side of the con- trol board. Route the remaining conductors to the right side of the control board.
7. Strip 1/4-in. of insulation from each conductor and equip each with a 1/4-in. female quick connect terminal.
8. Connect the RED wire to terminal +24v on the control board.
9. Connect the BLACK wire to terminal GND on the con- trol board.
10. Connect the WHITE/CLEAR wire to terminal RH/IAQ on the control board.
11. Connect shield to ground (if shielded wire is used).
Remote Occupancy Contact The remote occu- pancy input (J4 pin 1) has the capability to be connected to a normally open or normally closed occupancy dry contact. Wire the dry contact as show in Fig. 29 between J4 Pin 1 and 24 VAC J1 Pin 1. The 24 vac necessary to supply the VVT zone controller remote occupancy contact input is supplied using the zone controller.
Connect the Outputs Wire the zone controllers outputs (fan, staged heat, valves) as shown in the applicable wiring diagrams in Fig. 5-13.
Do NOT clean or touch the sensing element with chemical solvents; they can permanently damage the sensor.
3.25 (8.3)
5.625 (14.3)
1.125 (2.9)
0.25 (0.8)
5 (12.7)
NOTE: Dimensions are in inches. Dimensions in ( ) are in millimeters.
Fig. 24 Indoor Air Quality (CO2) Sensor (33ZCSENCO2)
Fig. 25 Ventilation Rated Based on CO2 Set Point
22
O Y
B I
R B
0
T 56
S A
T
+ 24 G N
D
G N
D
35 in
-lb (4
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COM
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+10V
DMPPOS
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AUXDMP
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23
Modulating Baseboard Hydronic Heating In- stall the water valve on the leaving water end of the baseboard heater. See Fig. 30. Observe the fluid flow direction when mounting the valve. Be sure to properly heat sink the valve and direct the flame away from the actuator and valve body when sweating the valve connections. Install the leaving water tem- perature sensor (33ZCSENCHG) on the hydronic heating coil as shown. The sensor accommodates nominal copper pipe from 1/2 to 1-in. (OD sizes from 5/8 to 1.125 in.). It should be secured to the pipe with the clamp supplied. If piping is larger than 1-in. nominal size, a field-supplied clamp must be used. Use fiberglass pipe insulation to insulate the sensor assembly.
Refer to Fig. 7 and 11 to wire the modulating water valve and the sensor to the zone controller. Connect the leaving water temperature sensor to the controller using the wiring connec- tions shown for the SAT sensor. (NOTE: The leaving water temperature sensor replaces the SAT sensor in this application.) Use 18 or 20 AWG wire for all connections. The water valve actuator housing may be used as a junction box if the leaving water temperature sensor cable is not long enough and the sensor cable must be extended to reach the controller.
For modulating hydronic heating applications, the default configuration must be changed to properly control the valve. Refer to the service configuration table and set the Heating Loop parameters as follows: Proportional Gain = 20.0 Integral Gain = 0.5 Derivative Gain = 0.0 Start Value = 102.0
Also, set the Ducted Heat decision to YES and set the Maximum Duct Temperature decision equal to the design (maximum) boiler water temperature minus 20 degrees, but not greater than 200 F.
Connect the Carrier Communicating Net- work Communication Bus The zone controllers connect to the bus in a daisy chain arrangement. The zone controller may be installed on a primary bus or on a secondary bus from the primary bus. Connecting to a secondary bus is recommended.
At 9,600 baud, the number of controllers is limited to 128 zones maximum, with a limit of 8 systems (Linkage Coor- dinator configured for at least 2 zones). Bus length may not
exceed 4000 ft, with no more than 60 devices on any 1000-ft section. Optically isolated RS-485 repeaters are required every 1000 ft.
At 19,200 and 38,400 baud, the number of controllers is limited to 128 maximum, with no limit on the number of Linkage Coordinators. Bus length may not exceed 1000 ft.
On larger systems with more than 8 linkage coordinators, use bridges to split the system into sections. The first zone con- troller in a network connects directly to the bridge and the others are wired sequentially in a daisy chain fashion. Refer to Fig. 31 for an illustration of Communication Bus wiring.
The Communication Bus also connects to the zone control- ler space temperature sensor. Refer to the Install the Sensors section for sensor wiring instructions. COMMUNICATION BUS WIRE SPECIFICATIONS The Communication Bus wiring is field-supplied and field- installed. It consists of shielded three-conductor cable with drain (ground) wire. The cable selected must be identical to the Communication Bus wire used for the entire network. See Table 2 for recommended cable.
Table 2 Recommended Cables
NOTE: Conductors and drain wire must be at least 20 AWG (American Wire Gage), stranded, and tinned copper. Individual con- ductors must be insulated with PVC, PVC/nylon, vinyl, Teflon, or polyethylene. An aluminum/polyester 100% foil shield and an outer jacket of PVC, PVC/nylon, chrome vinyl, or Teflon with a minimum operating temperature range of 20 C to 60 C is required.
CONNECTION TO THE COMMUNICATION BUS 1. Strip the ends of the red, white, and black conductors of
the communication bus cable. 2. Connect one end of the communication bus cable to the
bridge communication port labeled COMM2 (if connect- ing on a secondary bus). When connecting the communication bus cable, a color code system for the entire network is recommended to simplify installation and checkout. See Table 3 for the recommended color code.
3. Connect the other end of the communication bus cable to the terminal block labeled J2A in the zone controller of the first air terminal. Following the color code in Table 3, connect the Red (+) wire to Terminal 1. Connect the White (ground) wire to Terminal 2. Connect the Black () wire to Terminal 3.
4. Connect additional zone controllers in a daisy chain fash- ion, following the color coded wiring scheme in Table 3. Refer to Fig. 31.
NOTE: The communication bus drain wires (shield) must be tied together at each zone controller. If the communication bus is entirely within one building, the resulting continuous shield must be connected to ground at only one single point. If the communication bus cable exits from one building and enters another building, connect the shields to ground at a lightning suppressor in each building where the cable enters or exits (one point only).
Table 3 Color Code Recommendations
MANUFACTURER CABLE PART NO. Alpha 2413 or 5463 American A22503 Belden 8772 Columbia 02525
SIGNAL TYPE COMMUNICATION BUS WIRE COLOR
PLUG PIN NUMBER
+ Red 1 Ground White 2 Black 3
Fig. 27 Wall Mounted Relative Humidity Sensor
1104
24
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B I
24
R B
1
T 56S A
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+ 24
G N
D
G N
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V ol
ta ge
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gr ou
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A C
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50 /6
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1
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D
G N
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/IA Q
P A
T
G N
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CCW
COM
CW
+10V
DMPPOS
GND
AUXDMP
GND
G N
D R
H /IA
Q + 24
V V
S H
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(I F
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DMPPOS
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26
START-UP
Use the Carrier network communication software to start up and configure the zone controller.
All set-up and set point configurations are factory-set and field-adjustable.
Changes can be made using the System Pilot or Carrier soft- ware. During start-up, the Carrier software can also be used to verify communication with each zone controller.
For specific operating instructions, refer to the literature provided with the software.
Perform System Checkout 1. Check correctness and tightness of all power and commu-
nication connections. 2. Check that all air terminals, ductwork, and zone control-
lers are properly installed and set according to installation instructions and job requirements.
3. Check that all air duct connections are tight. 4. At the air terminals, check fan and system controls for
proper operation. Verify that actuator screws are properly tightened.
5. At the air terminals, check electrical system and connec- tions of any optional electric reheat coil. If hot water re- heat is used, check piping and valves against job draw- ings.
6. At the air terminals, make sure that all balancing dampers at box outlets are in the fully open position.
7. If using an air source with field-installed controls, make sure controls and sensors have been installed and wired per manufacturer installation instructions.
8. At air source, verify that the motor starter and, if applica- ble, the Hand/Off/Auto (HOA) switch are installed and wired.
33ZCSENCHG (SENSOR)
FLOW
1/2 TUBE 3/4 TUBE 1 TUBE
Fig. 30 Typical Water Valve and Sensor Installation
1 2 3 1 2 3 1 2 3
AIR TERMINAL UNIT (TYP)
1 2 3
COMM 2
1 2 3 4
GND
ZC (TYP)
1000 FT MAXIMUM
DRAIN WIRE (TYP)
BLK (TYP)
WHT (TYP)
RED (TYP)
BRIDGE (RECOMMENDED)
LEGEND
Fig. 31 Communication Bus Wiring
ZC Zone Controller
ON LARGE SYSTEMS
1104
27
9. Check to be sure the area around the air source is clear of construction dirt and debris.
10. Check that final filters are installed in the air handler(s). Dust and debris can adversely affect system operation.
11. Verify that the zone controller and the air source controls are properly connected to the communication bus.
12. Remember to utilize good duct design and to provide sufficient straight duct at the inlet of the box. A minimum of three times the inlet size is recommended.
Network Addressing Use the following method when all the zone controllers are installed and powered, and the SPT sensors are wired and functioning properly. This method can be used if no addresses have been set previously. The address of an individual zone controller may be set by using the System Pilot. This is the standard method of setting the address.
Each zone controller will default to an address of 0, 140 when its application software is initially loaded. Since multiple controllers will be on the same bus, a unique address must be assigned to each controller before the system can operate properly. The assignment of controller addresses will be performed through the System Pilot, as follows:
1. The System Pilot recognizes that the Zone Controllers address, stored in the zone controller memory, has not been written yet (this will be true when the unit is first powered up on the job, or after a jumper-initiated reset).
2. Press the override button on the SPT (terminals J4-14 and J4-12 are shorted) for 1 to 10 seconds.
3. The zone controller address changes from 0, 140 to 239, 239 for a period of 15 minutes.
4. Use System Pilot to change the address from 239, 239 to a valid system address within 15 minutes.
NOTE: If the address is not changed from 239, 239 to a valid system address within 15 minutes, the controller will revert to address 0, 140 and use of the override button will cause the address function to repeat. The operator MUST actively set the address even if the final desired address is 0, 140.
Initial Operation and Test Perform the following procedure:
1. Apply 24 vac power to the control. 2. Using the System Pilot, upload the controller from
address assigned in Network Addressing section above. 3. From the Terminal Service Configuration screen, proper-
ly configure the damper type and inlet size. If a round inlet is used, then enter the size directly in the Inlet Diameter decision. If a square, rectangular, or elliptical damper inlet is supplied, then enter the inlet size in square inches in the Inlet Area decision.
4. If the terminal damper closes in the CW direction, then no adjustment is required. Otherwise, locate the damper direction configuration decision (CW Rotation) and toggle the value to OPEN by using the space bar. This configuration decision is also located on the Terminal Service Configuration screen.
5. After entering the area and rotation direction, verify oper- ation of the damper. From the System Pilot Diagnostic,
Maintenance Screen, select the Zone Commissioning Table and force the Commissioning Mode point to Enable. Then select the Damper Cal point and force this point to Enable. The controller automatically tests the actuator by fully closing the damper. It checks the fully closed position to determine if the control was properly mounted. It then opens the damper. The control scales the actual actuator travel range used to a 0 to 100% open value. Finally the control will close the damper, test, and zero the pressure transducer. When completed, the control automatically removes the force from the Damper Cal point. If a failure occurs at any point during the testing, the Damper Calibration Status point at the bottom of the screen will indicate ALARM and the test will be aborted.
6. The actuator stroke has now been calibrated for the prop- er rotation.
Fan and Heat Configuration and Test Per- form the following procedure to configure and test the fan and heat:
1. Display the Terminal Service Configuration screen to make sure the proper Terminal Type and Heat Type are configured. See the Configuration section to answer questions about the individual configurations.
2. From the Diagnostics Maintenance Screen select the Zone Commissioning table.
3. Force the Commissioning Mode to Enable. 4. If the terminal is a parallel or series powered fan box,
force the Fan Override to Enable. If the damper is open it may have to be repositioned to the proper position depending on the box type. Damper percent change will be displayed. After the damper is positioned correctly, the fan relay should energize and the fan should run for a few seconds.
5. Make sure the fan runs and the Fan Override decision returns to disabled to ensure the fan is wired correctly for proper operation.
6. Force the Heating Override to Enable. If the unit is a single duct unit, this must be done with the primary termi- nal at reheat set point. The damper will open to the reheat cfm. The heat outputs will be commanded to provide maximum heat. If the unit is a fan-powered terminal, the fan must be on.
NOTE: The damper position settings can be found under service configuration in the table AIRFLOW.
System Balancing To balance the system, perform the following procedure:
1. Enable the balancing process by forcing System Com- missioning to Enable.
2. Enable the All Zone Dampers to Max point. 3. The zone controller will send all system zone dampers to
their configured maximum positions and display the values. Check the system maximum airflows to all zones and set zone dampers while the system is at maximum flow and the bypass damper is closed. Adjust maximum damper position set points if required. The system can also be balanced at design conditions with some dampers closed.
4. If the user forces any zones to a new position, the new po- sition is written to the zones maximum damper position configuration value and the damper is repositioned.
5. Enable the All Zone Dampers to Min point.
Before starting the air source fan, make sure that dampers at the systems air terminals are not fully closed. Starting the fan with dampers closed will result in damage to the system ductwork.
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6. The zone controller will send all system zone dampers to their configured minimum positions and display the values. Check the system bypass pressure and set the pressure set point. Adjust minimum damper set points if required.
7. If the user forces any zones to a new position, the new position is written to the zones minimum damper posi- tion configuration value and the damper is repositioned.
8. Enable the Position Single Zone point. 9. The zone controller will send all system zone dampers to
their configured maximum positions and display the values.
10. If the user forces any zones to a new position, the new po- sition is written to the zones maximum damper position configuration value and the damper is repositioned.
11. At this time, the user can force the Bypass Pressure set point. Typically, the maximum unit rated duct static is used. The zone controller will then write the forced Bypass Pressure set point to the set point table in the Bypass Controller by communicating over the network. The bypass controller will then begin to control to the new bypass pressure set point.
Status Table The following sections describe the com- puter status screen which is used to determine status the zone controller. The screens shown may be displayed differently when using different Carrier software. See Table 4. TERMINAL MODE The terminal mode is determined by the equipment mode as reported by linkage and space require- ments determined by space temperature and set points. The ZONE_BAL and COMMISS modes are the result of the activating the commissioning maintenance table to perform terminal testing and commissioning. Terminal Mode:Display Units ASCII
Default Value COOL Display Range HEAT, COOL, VENT,
REHEAT, PRESSURE, EVAC, OFF, ZONE_BAL, COMMISS
Network Access Read only TERMINAL TYPE Terminal type is the confirmation of the terminal type configuration in the CONFIG Service Config table. Terminal Type: Display Units ASCII
Default value SINGLDUCT Display Range SINGLDUCT, PAR
FAN, SER FAN Network Access Read only
CONTROLLING SETPOINT Controlling Set Point will display either the heating master reference or the cooling mas- ter reference depending upon what mode the terminal is in. The display will default to the heating master reference and display the last controlling master reference when in neither heating nor cooling. Controlling Setpoint: Display Units F (C)
Default Value 40 Display Range 40 to 245 Network Access Read only
SPACE TEMPERATURE Space temperature from 10 k thermistor (Type II) located in the space. The point name of the displayed Space Temperature is SPACE_T in this status dis- play table. This point may be forced for diagnostic purposes.
A non-displayed variable named SPT also exists within the zone controller as a writeable point for normal operations with a System Pilot or other devices that will write a space tempera- ture to the zone controller. The zone controller verifies that the SPT point is being written to before using it to update the SPACE_T point. Values that are received at the SPT point may be averaged with the hardware space temperature input. Space Temperature: Display Units F (C)
Default Value 40.0 Display Range 40.0 to 245.0 Network Access Read/Write
DAMPER POSITION Damper position percent range of rotation determined by the transducer calibration procedure. The zone controller is designed be used on dampers with any range of rotation. Damper Position: Display Units % open
Default Value 0 Display Range 0 to 100 Network Access Read only
SUPPLY AIR TEMPERATURE This reading is the tem- perature of the air provided by the air source. If ducted heat is present, this sensor may be relocated to measure temperature of the air leaving the zone controller downstream of any ducted heat source. Measured by a 10 k thermistor (Type II). This temperature may be used to control the maximum discharge air to the space when local heat is active. The local SAT Installed configuration is used to enable or disable this sensor. Supply Air Temperature: Display Units F (C)
Default Value 0.0 Display Range 40.0 to 245.0 Network Access Read/Write
LOCAL HEATING CAPACITY When local heat at the terminal is enabled the percent of heat being delivered is deter- mined by the following formula for modulating (floating point) type heat:
% Capacity = [(SAT - SPT)/(Maximum Duct Temp SPT)] The percent of heat delivered is determined by the follow-
ing for two-position hot water or staged electric heat: % Output Capacity = (no. of active stages/Total stages) * 100
Local Heating Capacity: Display Units % output capacity
Default Value 0 Display range 0 to 100 Network Access Read only
TERMINAL FAN The commanded output for the terminal fan on a fan powered terminal. Terminal Fan: Display Units Discrete ASCII
Default Value Off Display Range Off/On Network Access Read/Write
RELATIVE HUMIDITY Space Relative Humidity read- ing from the optional relative humidity sensor. The humidity reading is used for display and monitoring purposes only. Relative Humidity: Display Units % RH
Default Value 0 Display Range 0 to 100 Network Access Read/Write
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Table 4 Status Screen
DEMAND VENTILATION This variable displays the amount of CO2 in the air as read from the demand ventilation sensor if DCV (demand control ventilation) is specified. NOTE: The zone controller either reads relative humidity or demand ventilation depending on what is specified in the Con- trol Options configuration. If this point is not specified, it is available for use as a software point. Demand Ventilation: Display Units ppm
Default Value 0 Display Range 0 to 5000 Network Access Read/Write
PRIMARY AIR TEMPERATURE Primary air tempera- ture from sensor (10 k, Type II), located in main trunk of ductwork for supply air provided by the air source equipment. Used for linkage coordination of linked systems, not local operation. Primary Air Temperature: Display Units F (C)
Default Value 0.0 Display Range 40.0 to 245.0 Network Access Read/Write
HEAT (ENABLE/DISABLE) Provides enable/disable func- tion for local heat at the terminal. When enabled the Local heat capacity function will run to operate the terminal heat. Heat Display: Display Units Discrete ASCII
Default Value Disable Display Range Disable/Enable Network Access Read/Write
REMOTE START This variable displays the value of the remote timeclock input point that can be used for occupancy override. The input point is configured as normally open or normally closed in the Terminal Service Configuration Table. The occupancy mode of the zone controller will depend on the configuration of the timeclock input and the value of the input as follows:
The user can override the zone controllers unoccupied mode by forcing Remote Start to On. The default state (Nor- mally Closed and Off) is such that it may be used by controllers that do not have remote timeclock wiring.
Remote Start: Display Units Discrete ASCII
Default Value Off Display Range On/Off Network Access Read/Write
CONFIGURATION TABLES
The following sections describe the computer configuration screens which are used to configure the zone controller. The screens shown may be displayed differently when using differ- ent Carrier software. See Table 5.
Alarm Configuration Table The Alarm Configura- tion Table (ALARMLIM) contains decisions used to configure the alarm settings for the zone controller. This includes re-alarm time, routing of alarms, limits for space temperature and demand control ventilation. RE-ALARM TIME This decision is used to configure the number of minutes the zone controller will wait before an alarm condition which has not been corrected will be re-transmitted on the communications network. Re-alarming of an alarm condition will continue until the condition no longer exists. Alarm Re-Alarm Time: Units Minutes
Range 0 to 1440 Default Value 0 (Disabled)
ALARM ROUTING CONTROL This decision indicates which Carrier Proprietary Network system software or devices will receive and process alarms sent by the zone controller. This decision consists of eight digits each can be set to zero or one. A setting of 1 indicates alarms should be sent to this device. A setting of zero disables alarm processing for that device. Currently the corresponding digits are configured for the following devices: first digit user interface software; second digit autodial gateway or Telink; fourth digit alarm printer interface module; digits 3, and 5 through 8 unused. Alarm Routing Control: Range 00000000 to 11111111
Default Value 00000000 SPACE TEMPERATURE OCCUPIED HYSTERESIS This configuration defines the range above the occupied high set point and below the occupied low set point that the space temperature must exceed for an alarm condition to exist during occupied hours. Space Temperature Occupied Hysteresis: Units delta F (delta C)
Range 0.0 to 99.9 Default Value 5.0
DESCRIPTION VALUE UNITS STATUS FORCE NAME Terminal Mode HEAT MODE Terminal Type SER FAN TYPE Controlling Setpoint 69.0 dF CNTSP Space Temperature 66.0 dF SPACE_T Damper Position 0 %OPEN DMPPOS Supply Air Temperature 67.1 dF SAT Local Heating Capacity 100 % HCAP Terminal Fan On FAN Relative Humidity 0.0 % RH Demand Ventilation (ppm) 0 DCV Primary Air Temperature 66.0 dF PATEMP Heat Enable HEAT Remote Start Off REMTCIN
REMOTE TIMECLOCK INPUT CONFIGURATION OCCUPANCY
Off (default) Normally Closed (default)
Occupied (default)
On Normally Closed Unoccupied
Off Normally Open Unoccupied
On Normally Open Occupied
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Table 5 Alarm Configuration Table
UNOCCUPIED SPACE TEMPERATURE LOW LIMIT This configuration defines the lowest temperature that the
unoccupied space can be before an alarm is generated. Unoccupied Space Temperature Low Limit: Units F (C)
Range 0 to 255 F Default Value 40
UNOCCUPIED SPACE TEMPERATURE HIGH LIMIT This configuration defines the highest temperature that the
unoccupied space can be before an alarm is generated. Unoccupied Space Temperature High Limit: Units F (C)
Range 0 to 255 F Default Value 99
DEMAND CONTROL VENTILATION LOW LIMIT This configuration defines the lowest CO2 level reading that the occupied space can have before an alarm is generated. Demand Control Ventilation Low Limit: Units ppm
Range 0 to 5000 Default Value 250
DEMAND CONTROL VENTILATION HIGH LIMIT This configuration defines the highest CO2 level reading that the occupied space can have before an alarm is generated. Demand Control Ventilation High Limit: Units ppm
Range 0 to 5000 Default Value 1200
Terminal Service Configuration Table The Ter- minal Service Configuration Table (CONFIG) contains decisions used to configure the main settings for the zone controller. This includes Terminal Type, Primary Inlet Size, and gains for the damper and heating PID loops. Decisions regarding auxiliary heat are made in this table and up to 10 temperature readings can be configured for room tempera- ture sensor averaging. SPT and SAT sensor trimming are done here as well. See Table 6. TERMINAL TYPE This configuration is used to indicate the terminal type that the zone controller is installed on. A 1 is for Single Duct terminals, a 2 is for Parallel Fan terminals, and a 3 is for Series Fan terminals. Terminal Type: Range 1 to 3
Default Value 1 PRIMARY INLET SIZE The Primary Inlet Size configu- ration is used to input the inlet diameter of the terminal if used with a round inlet. The Inlet Area configuration is used for oval or rectangular inlets. The zone controller will use the larger val- ue for demand weighting if both values are configured. If both inlet size and inlet area are zero, then the damper will not be in- cluded in the average demand calculations. NOTE: Carrier sizes 12, 14, and 16 are oval.
Primary Inlet Size (Inlet Diameter): Units Inches
Range 0.0 to 24.0 Default Value 6.0
INLET AREA The Inlet Area configuration is used if the ter- minal has an oval or rectangular inlet. The Primary Inlet Size configuration is used for round inlets. The zone controller will use the larger value for demand weighting if both values are config- ured. If both inlet size and inlet area are zero, then the damper will not be included in the average demand calculations. Inlet Area: Units Square Inches
Range 0.0 to 500.0 Default Value 0.0
DAMPER LOOP PARAMETERS The loop gains and start value define how the terminal will respond to deviations in measured temperature in order control to the damper position.
The Proportional Gain is calculated each time the airflow is compared to the active airflow set point. As the error from set point goes to zero, the proportional term will also go to zero.
The Integral Gain is a running summation of all integral terms since the loop started. This has the effect of trimming off any offset from the set point which might occur, if only the proportional term existed. Normally a proportional loop with no integral term would require frequent adjustments of the starting value to eliminate the offset as static pressure and other conditions change.
The derivative gain tends to nullify or accelerate the chang- es in the proportional gain depending on the size of the error from the set point. This allows the damper to respond faster and more efficiently to accurately maintain the space tempera- ture set points. The Start Value is the initial value that is then modified by the error terms of the PID calculation. Damper Loop Parameters Proportional Gain:Range 00.0 to 99.9
Default Value 10.0 Integral Gain: Range 00.0 to 99.0
Default Value 2.5 Derivative Gain: Range 00.0
Default Value 4.0 Start Value: Units %
Range 0 to 100 Default Value 40
CLOCKWISE ROTATION This configuration is used to define what effect a clockwise rotation of the actuator will have on the damper. If the actuator rotates clockwise to closed posi- tion, the configuration should be set to Close. If the actuator ro- tates clockwise to open, the configuration should be set to open. This configuration is used to change the rotation of the actuator so that the damper transducer calibration will work properly. The actuator does not have to be re-installed nor any switches changed to reverse the action. Clockwise Rotation: Range Close/Open
Default Value Close
DESCRIPTION VALUE UNITS NAME Alarm Configuration Re-alarm Time 0 min RETIME Alarm Routing 00000000 ROUTING
SPT Occupied Hysteresis 5.0 ^F SPTHYS Unoccupied SPT Low Limit 40.0 dF LOWLIM High Limit 99.0 dF HIGHLIM
Demand Ctrl Ventilation Low Limit 250.0 LOWLIM High Limit 1200.0 HIGHLIM
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Table 6 Terminal Service Configuration Table
DESCRIPTION VALUE UNITS NAME COOLING Terminal Type 1 TERMTYPE 1 = Single Duct 2 = Parallel Fan 3 = Series Fan
Primary Inlet Size Inlet Diameter (Inches) 6.0 RNDSZ Inlet Area (Sq. In.) 0.0 SQA
Damper PID Proportional Gain 10.0 KP Integral Gain 2.5 KI Derivative Gain 4.0 KD Starting Value 40.0 % STARTVAL
CW Rotation Close DMPDIR HEATING Heat Type 0 HEATTYPE 0 = None 2 = Two Position 3 = Staged Electric 4 = Modulating/CV 5 = Combination
Heating PID Proportional 10.0 KP Integral Gain 0.5 KI Derivative Gain 0.0 KD Starting Value 80.0 dF STARTVAL
Ducted Heat Yes DUCTHEAT Maximum Temperature 110 dF MAXTEMP # Electric Heat Stages 3 STAGES Heat On Delay 2 min HONDEL Fan Off Delay 2 min FNOFFD 2-Pos Heat Logic Normal HEATYPE System Call for Heat? Yes HEATCALL Supp. Heat Lockout Temp. 140.0 dF SHL_TEMP System Pilot Averaging 0 SENS_AVG 0 = System Pilot only 1 = with one T55 2 = with four T55s 3 = with nine T55s
SPT Sensor Trim 0.0 ^F SPTTRIM SAT Sensor Trim 0.0 ^F SATTRIM Local SAT Installed Yes LOC_SAT Remote Contact Config Close RMTCFG
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HEAT TYPE This configuration is used to define the type of heat installed on the terminal. A 0 or 1 is equal to None. A 2 is equal to Two Position. A 3 is equal to Staged Electric. A 4 is equal to Modulating/CV. A 5 is equal to combination. Heat Type: Range 0 to 5
Default Value 0 HEATING LOOP PARAMETERS The heating loop gains and start value define how the terminal will respond to deviations in measured space temperature in order to control to the heat set point.
The Proportional Gain is calculated each time the space temperature is compared to the heat set point. As the error from set point goes to zero, the Proportional Gain will also go to zero.
The Integral Gain is a running summation of all integral terms since the loop started. This has the affect of trimming off any offset from set point which might occur if only the Proportional Gain existed. Normally a proportional loop with no Integral Gain would require frequent adjustments of the starting value to eliminate the offset as loading conditions on the room change.
The Derivative Gain is not needed. This term tends to nullify large changes in the Proportional Gain for dampened response.
The Start Value is the initial value that is then modified by the Error terms of the PID calculation. Heating Loop Parameters Proportional Gain: Range 00.0 to 99.9
Default Value 8.0
Integral Gain: Range 00.0 to 99.0 Default Value 3.0
Derivative Gain: Range 00.0 Default Value 0.0
Start Value: Units F (C) Range 40 to 125 Default Value 80
DUCTED HEAT The Ducted Heat configuration is used to configure the terminal for ducted heat. If a local heat source is in the duct and requires airflow to provide heat, set the Duct- ed Heat configuration for yes. Ducted Heat: Range No/Yes
Default Value Yes MAXIMUM TEMPERATURE This configuration is used to configure the maximum supply-air temperature desirable for heating the space. This will cause the heat to be modulated or cycled using this value as the maximum temperature of the air to be supplied. Maximum Temperature: Units F (C)
Range 40 to 200 Default Value 110
NUMBER OF ELECTRIC STAGES This configuration is used to define the number of stages of electric heat controlled by the zone controller. Number of Electric Stages: Range 1 to 3
Default Value 1 HEAT ON DELAY The Heat On Delay configuration is used to define a delay from the time a parallel terminal fan is started until the heat is activated. Heat On Delay: Units minutes
Range 1 to 60 Default Value 2
FAN OFF DELAY The Fan Off Delay configuration is used to define a delay time. The delay time is from when the
heat is deactivated (in a parallel terminal) until the parallel fan is deactivated. This allows the fan to circulate air and remove the residual heat from the heat source. Fan Off Delay: Units minutes
Range 1 to 15 Default Value 2
TWO-POSITION HEAT LOGIC This configuration is used for controlling a normally closed or normally open valve for hot water. Use normal logic if the valve is normally closed. Use inverted logic if the valve is normally open. Two Position Heat Logic: Range Normal/Invert
Default Value Normal SYSTEM CALL FOR HEAT? This decision is used whenever auxiliary heat is available and can handle the heat load for the zone without calling the system for heat. This prevents the entire building from going to heat for one cold room. Configure this decision to No when this zone should not be allowed to call the air source for heat. System Call For Heat: Range No/Yes
Default Value Yes SUPPLEMENTAL HEAT LOCKOUT TEMP This config- uration is the temperature setting that is compared to the outside air temperature to make a determination if supplemen- tal heat at the zone will be allowed to operate. Supplemental Heat Lockout Temp: Units F
Range 40.0 to 140 F Default 140
SYSTEM PILOT AVERAGING This configuration de- termines how multiple sensors are averaged with the System Pilot. A 0 equals System Pilot only. A 1 equals with one T55 sensor. A 2 equals with four T55 sensors. A 3 equals with nine T55 sensors. System Pilot Averaging: Range 0-3
Default Value 0 SPACE TEMPERATURE TRIM This configuration is used to trim a space sensor which might need calibration. For example, if the temperature displayed is two degrees above the value measured with calibrated test equipment, input a value of 2.0. System Pilot Trim: Units delta F (delta C)
Range 9.9 to 9.9 Default Value 0.0
SUPPLY AIR TEMPERATURE TRIM This configuration is used to trim a supply air sensor which might need calibra- tion. For example, if the temperature displayed is two degrees above the value measured with calibrated test equipment, input a value of 2.0. Supply Air Temperature Trim: Units delta F (delta C)
Range 9.9 to 9.9 Default Value 0.0
LOCAL SAT INSTALLED This configuration tells the zone controller if a local SAT sensor is installed. When config- ured as Yes, the zone controller will use this information to determine if the local SAT sensor has failed or is out of range and has sensed an alarm. When configured to No, the SAT point will read 0.0 F and the SAT alarm condition will be cleared. Local SAT Installed: Range No/Yes
Default Yes
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REMOTE CONTACT CONFIG The remote timeclock contact input can be configured as a normally open or normally closed contact. When the timeclock input is On the zone will follow its local occupancy schedule. When the timeclock input is Off the zone will be forced into unoccupied state. Remote Contact Config: Range Close/Open
Default Value Close
Damper Service Configuration Table The Damp- er Service Configuration Table (DAMPER) contains decisions used to configure the damper minimum, maximum and ventilation positions. See Table 7. COOL MINIMUM POSITION This configuration is the minimum damper position the terminal will control to when the equipment mode is Cooling (or Fan Only), or free cooling and the space requirements for cooling are at a minimum. Cool Minimum Position: Units %
Range 0 to 100 Default Value 0
COOL MAXIMUM POSITION This configuration is the maximum damper position the terminal will control to when the equipment mode is cooling (or fan only), or free cooling and the space requirements for cooling are at a maximum. Cool Maximum Position: Units %
Range 0 to 100 Default Value 100
REHEAT MINIMUM POSITION This configuration is for single duct units with ducted reheat. Configure the desired damper position at which the reheat will provide optimum performance. This value is compared to the Minimum Cool value and the greater of the two values is used to determine the damper position. Reheat Minimum Position: Units %
Range 0 to 100 Default Value 0
HEAT MINIMUM POSITION This configuration is the Minimum damper position the terminal will control to when the equipment mode is Warm-Up or Heat. If the terminal is not configured for VAV central heating this is the only position the terminal will control to for these equipment modes. Heat Minimum Position: Units %
Range 0 to 100 Default Value 0
HEAT MAXIMUM POSITION This configuration is used to configure the maximum damper position at which the zone controller will operate if VAV central heat is configured to yes. If the equipment mode is Heat or Warm-Up and the demand in the space is for heat the zone controller will calculate the proper damper position needed to achieve space temperature set point, operating between the Heat Min and Heat Max. Heat Maximum Position: Units %
Range 0 to 100 Default Value 100
VENTILATION POSITION This configuration is used to specify the ventilation damper position the terminal will con- trol to when the air source operating mode is VENT. Ventilation Position: Units %
Range 0 to 100 Default Value 30
Holiday Configuration Table The Holiday Con- figuration Table (HOLDYxxS) contains decisions used to con- figure the start date and duration of holidays. See Table 8. START MONTH The start month is the month in which the holiday starts. Months are represented by numbers with 1 representing January, 2 February, up to 12. Start Month: Range 1 to 12
Default Value 1 START DAY The start day is the day on which the holiday will start. Start Day: Range 1 to 31
Default Value 1 DURATION Length of time, in days, that the holiday will last. Duration: Range 0 to 365
Default Value 0
Linkage Configuration Table The Linkage Con- figuration Table (LINKAGE) contains decisions used to configure the linkage coordinator zone controller's linkage settings. This is where the linkage coordinator zone controller, the air source and the bypass controller options are configured. It also includes Carrier Network Function Configuration used for collecting data from multiple controllers and finding the high, low or average value and transferring the data to another controller. This table is also used to setup Temperature Sensor Grouping, which is the sharing of one space temperature sensor among multiple zone controllers. See Table 9. LINKAGE MASTER ZONE This decision defines if the zone controller will function as a Linkage Coordinator (Linkage Master) for itself and other zones.
If the zone controller is to use a supply air sensor for stand-alone operation, this configuration must be configured to No and the number of Zones to 1.
If the zone controller will use its primary air sensor to deter- mine the air handler mode for a number of zone controllers, configure this configuration to Yes, input the number of zones, and leave the air source decisions at the default values of zero.
If this zone controller will communicate linkage informa- tion with an air source, configure this configuration to Yes. The number of zones must be configured and the address of the air source entered. Linkage Master Zone: Range Yes/No
Default Value No NUMBER OF ZONES This decision defines the number of zone controllers (including itself) for the Linkage Coordinator to scan and include as part of the average temperature, set points, and occupancy information to the air source. The address of the zone controller functioning as a Linkage Coordinator must be larger than the number of zones configured. The zone controller will scan addresses less than its own, including information for as many zones as are configured. Other zone controller config- ured as linkage coordinators will also be included, so it is possi- ble to have zones scanned by more than one linkage coordinator. Therefore care must be taken in addressing to prevent overlap- ping systems, unless overlapping systems is necessary. In large buildings the use of bridges and multiple busses is recommended to improve communication and provide system differentiation. Number of Zones: Range 1 to 32
Default Value 1
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AIR SOURCE BUS AND ELEMENT NUMBER The Air Source Bus and Element Number configurations define the address of the air source providing conditioned air to the zones controlled by the linkage coordinator. If the address is left at zero, the linkage coordinator will look for a primary air sensor to determine the equipment mode. If no primary air sensor is installed, or the sensor fails, the Linkage Coordinator will default the air source mode to Cooling.
Air Source Bus Number: Range 0 to 239
Default Value 0 Air Source Element Number: Range 0 to 239
Default Value 0
Table 7 Damper Service Configuration Table
Table 8 Holiday Configuration Table
Table 9 Linkage Configuration Table
DESCRIPTION VALUE UNITS NAME Cool Minimum Pos 0 % CMINPOS Cool Maximum Pos 100 % CMAXPOS Reheat Minimum Pos 0 % REMINPOS Heat Minimum Pos 0 % HMINPOS Heat Maximum Pos 100 % HMAXPOS Ventilation Pos 30 % VENTPOS
DESCRIPTION VALUE UNITS NAME Start Month 1 MONTH Start Day 1 DAY Duration 0 DURATION
DESCRIPTION VALUE UNITS NAME Zone Linkage Linkage Master Zone No MZENA Number of Zones 1 NSYSTZ Air Source Bus # 0 ASBUSN Air Source Element # 0 ASELEMN System Bypass Exists Yes SYS_BP AST Mode Verification No AST_CHCK AST Sensor Location 0 AST_LOC 0 = Airsource 1 = Local PAT 2 = Bypass
CCN-LINKAGE DATA CCN Variable Name CCNVAR CCN Func Config 0 CCNFUNC 0 = None 1 = Average 2 = Low 3 = High
Data Transfer Rate 10 min DATARATE CCN Output Point CCNOUTP Destination Bus # 0 DESTBUSN Destination Element # 0 DESTELEN TEMP SENSOR GROUPING Sensor Mode 1 BRD_RECV 1 = Local Sensor 2 = Broadcast 3 = Listen
Listen Sensor Config 1 SENSCFG 1 = SPT 2 = SPT & Offset
Broadcasting Element # 1 BRDDEVID
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SYSTEM BYPASS EXISTS This decision is used to tell the linkage coordinator that an optional bypass controller does or does not exist in this system. If this decision is set to Yes, the linkage coordinator will attempt to communicate with a bypass controller whose address must be one higher than the linkage coordinator. If this decision is set to No, the linkage coordinator will not attempt to communicate with a bypass controller. System Bypass Exists: Range Yes/No
Default Value Yes AST MODE VERIFICATION This decision is used to tell the linkage coordinator whether or not to qualify the mode sent to it by comparing the air source supply air temperature value to space temperature to ensure the air source is discharging an appropriate supply air temperature for the current heat/cool mode. If heating is required but the supply air temperature is too cool for heating, the zone controller will act as if the air source mode is cool rather than heat. AST Mode Verification: Range Yes/No
Default Value No AST SENSOR LOCATION This decision is used to spec- ify where the air source supply air temperature sensor is located. It may be located at the air source, at the bypass con- troller, or there may be an optional primary air temperature sensor (PAT) installed in the primary air duct. AST Sensor Location: Units none
Range 0 = air source, 1 = local PAT, 2 = bypass
Default Value 0 CCN LINKAGE DATA A zone controller configured as a linkage coordinator has the ability to poll its linked zones and collect the high, low or average value of any variable within its linked zones. Once the high, low or average is determined, the linkage coordinator can then transfer that value to a configured bus number, element number and point name. Typically this feature is used to determine a systems highest indoor air qual- ity reading.
In order to utilize this feature the CCN Variable Name being collected from the linked zones must be supplied. The data transfer rate must be specified and whether the high, low, or average value is being determined. After the value has been determined, a valid point name and communication bus address to transfer the value to must be entered. CCN Variable Name: Units ASCII (8 Characters)
Range A-Z, 0-9 Default Value (blank)
CCN Function Config: Units none
Range 0 = none, 1 = average, 2 = low, 3 = high
Default Value 3 Data Transfer Rate: Units minutes
Range 1-15 Default Value 10
CCN Output Point: Units ASCII (8 Characters)
Range A-Z, 0-9 Default Value (blank)
Destination Bus Number: Units none
Range 0-239 Default Value 0
Destination Element Number: Units none
Range 0-239 (0 = disabled) Default Value 0
TEMP SENSOR GROUPING Each zone controller has the capability to broadcast the associated space temperature sensors data or listen to another controllers sensor data over the network. All controllers sharing the same sensor must be installed on the same communication bus.
There are three configuration decisions that must be config- ured in order to share sensors. The Temp Sensor Mode is used to specify if a controller will use its own local sensor, broadcast its local sensor, or listen to another controllers sensor broad- cast. The Listen Sensor Config is used to specify if the control- ler is sharing the space temperature information only or the space temperature and temperature offset slidebar information. The Broadcast Element Number decision is used to specify which controller number a zone will listen for when configured to receive another controllers broadcast. Temp Sensor Mode: Units none
Range 1 = Local Sensor, 2 = Broadcast, 3 = Listen
Default Value 1 Listen Sensor Config: Units none
Range 1 = SPT, 2 = SPT and offset
Default Value 1 Broadcast Element Number: Units None
Range 1-239 Default Value 1
Language Configuration Table The Language Configuration table (LNGCONF) is used to select the display language that will be seen on all user interfaces for this control- ler. By default, the zone controller displays information in English. To change to a second language display, set this decision to No, download this table and then upload the zone controller to see the factory-loaded second language. If a sec- ond language is not available in this module, this decision will be disregarded and information will continue to be displayed in English. English Language: Range No/Yes
Default Value Yes
Master (Linkage Coordinator) Service Configu- ration Table The Master (Linkage Coordinator) Service Configuration Table (MASTER) contains decisions used by the linkage coordinator zone controller to determine the system demand mode (heat/cool/vent). See Table 10. COOL START AVERAGE DEMAND This decision is used to configure the minimum average cooling demand that must be met before the system will start in cooling mode if no mode is currently active. NOTE: If there is also an average heating demand, and it is also greater than its configured minimum average heating demand (Heat Start Avg. Demand), then the mode with the greater demand will be selected. If both heating and cooling average demand are exactly the same then the mode with the greatest individual zone demand will determine the starting system mode. Cool Start Average Demand: Units delta F (C)
Range 0.5 to 5.0 Default Value 0.7
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Table 10 Master Service Configuration Table
COOL MODE HYSTERESIS This decision is used to configure the hysteresis that will be used to determine when the cooling mode will end. The cooling mode ends when the average cooling demand drops below the minimum average demand minus the hysteresis: (average cooling demand < Cool Start Avg. Demand Cool Mode Hysteresis) Cool Mode Hysteresis: Units delta F (C)
Range 0.5 to 5.0 Default Value 0.7
HEAT START AVERAGE DEMAND This decision is used to configure the minimum average heating demand that must be met before the system will start in heating mode if no mode is currently active. NOTE: If there is also an average cooling demand, and it is also greater than its configured minimum average cooling demand (Cool Start Avg. Demand), then the mode with the greater demand will be selected. If both heating and cooling average demand are exactly the same then the mode with the greatest individual zone demand will determine the starting system mode. Heat Start Average Demand: Units delta F (C)
Range 0.5 to 5.0 Default Value 0.7
HEAT MODE HYSTERESIS This decision is used to configure the hysteresis that will be used to determine when the heating mode will end. The heating mode ends when the aver- age heating demand gets below the minimum average demand minus the hysteresis: (average heating demand < Heat Start Avg. Demand - Heat Mode Hysteresis) Heat Mode Hysteresis: Units delta F (C)
Range 0.5 to 5.0 Default Value 0.7
SYSTEM MODE RESELECT This decision is used to configure the minimum time that must elapse before a mode change can take effect. System Mode Reselect: Units minutes
Range 0 to 255 Default Value 30
COOL TIME GUARD TIMER This decision is used to configure the minimum time that the cooling mode must be ac- tive before a mode change can take effect. The Cool Time Guard Timer becomes active whenever the cooling mode goes into effect. Cool Time Guard Timer: Units minutes
Range 0 to 255 Default Value 0
HEAT TIME GUARD TIMER This decision is used to configure the minimum time that the heating mode must be active before a mode change can take effect. The Heat Time Guard Timer becomes active whenever the heating mode goes into effect. Heat Time Guard Timer: Units minutes
Range 0 to 255 Default Value 0
CONT. FAN WHEN OCC This decision is used to config- ure the air source fan to go On whenever the zone is in an occu- pied mode. If this decision is set to No, the fan will cycle on and off during occupied modes in order to maintain set point. Cont. Fan When Occ: Range No/Yes
Default Value Yes HEAT MODE LOCKOUT SET POINT This decision is used to lock out the heating mode by comparing this value to outdoor air temperature. If the outdoor air temperature reading is valid and greater than this value then the heating mode will be locked out. If outdoor air temperature drops 3 degrees below the Heat Mode Lockout Set Point, the lockout is cancelled. This 3-degree hysteresis is fixed. Heat Mode Lockout Set Point: Units F (C)
Range 40.0 to 140.0 (140 = disable)
Default Value 140 COOL MODE LOCKOUT SET POINT This decision is used to lock out the cooling mode by comparing this value to outdoor air temperature. If the outdoor air temperature reading is valid and less than this value then the cooling mode will be locked out. If outdoor air temperature raises 3 degrees above the Cool Mode Lockout Set Point, the lockout is cancelled. This 3-degree hysteresis is fixed. Cool Mode Lockout Set Point: Units F (C)
Range 40.0 to 140.0 (40 = disable)
Default Value 40
Time Schedule Configuration Table The Time Schedule Configuration Table (OCCDEFCS) contains decisions used to configure the zone controllers occupancy schedule. For flexibility of scheduling, the occupancy configu- ration is broken into eight separate periods. See Table 11. MANUAL OVERRIDE HOURS The Manual Override Hours decision is used to command a timed override by enter- ing the number of hours the override will be in effect.
If the occupancy schedule is occupied when this number is downloaded, the current occupancy period will be extended by the number of hours downloaded.
DESCRIPTION VALUE UNITS NAME Cool Start Avg. Demand 0.7 ^F CSA_DMD Cool Mode Hysteresis 0.7 ^F C_HYST Heat Start Avg. Demand 0.7 ^F HSA_DMD Heat Mode Hysteresis 0.7 ^F H_HYST System Mode Reselect 30 min RESELECT Cool Time Guard Timer 0 min C_MOD_TG Heat Time Guard Timer 0 min H_MOD_TG Cont. Fan When Occ? Yes FAN_MODE Heat Mode Lockout Setp 140.0 dF HLO_SPT Cool Mode Lockout Setp 40.0 dF CLO_SPT
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If the current occupancy period is unoccupied when the occupancy override is initiated, the mode will change to occupied for the duration of the number of hours downloaded.
If the occupancy override will end after the start of the next occupancy period, the mode will transition from occupancy override to occupied without becoming unoccupied, and the occupancy override timer will be reset.
An active occupancy override or a pending occupancy override may be canceled by downloading a zero to this configuration. Once a number other than zero has been down- loaded to this configuration any subsequent downloads of any value other than zero will be ignored by the zone controller. Manual Override Hours: Units hours
Range 0 to 4 Default Value 0
OCCUPANCY SCHEDULING For flexibility of schedul- ing, the occupancy programming is broken into eight separate periods. For each period the scheduling, the active days of the week, occupied start time, and occupied stop time needs to be configured. DAY OF WEEK This configuration consists of eight fields corresponding to the seven days of the week and a holiday field in the following order: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday, Holiday. A separate configuration screen is used.
If a 1 is configured in the corresponding place for a certain day of the week, the related Occupied from and Occupied to times for that period will take effect on that day of the week. If a 1 is placed in the holiday field the related times will take effect on a day configured as a holiday. A zero means the schedule period will not apply to that day. Period (1-8): Day of Week: Range 0 or 1
Default Values 11111111 for period 1, 00000000 for periods 2-8.
OCCUPIED FROM This field is used to configure the hour and minute, in military time, when the mode for the zone controller becomes occupied. Period (1-8): Occupied from: Units Hours: Minutes
Range 00:00 to 24:00 Default Value 00:00
OCCUPIED TO This field is used to configure the hour and minute, in military time, when the occupied mode for the zone controller becomes unoccupied. Period (1-8): Occupied from: Units Hours: Minutes
Range 00:00 to 24:00 Default Value 24:00
Option Service Configuration Table The Op- tion Service Configuration Table (OPTIONS) contains decisions used to configure the service options of the zone controller. This includes such things as whether the zone controller is a global schedule master, a global set point master, a broadcast acknowledger, and whether it will be using demand control ventilation. This is also where loadshed parameters are configured. See Table 12. OCCUPANCY SCHEDULE NUMBER The Occupancy Schedule Number defines what Occupancy schedule the zone controller will use. Occupancy Schedule 64 is a local schedule. Occupancy Schedules 65 to 99 are global schedules. Occupancy Schedule Number: Range 64 to 99
Default Value 64
GLOBAL SCHEDULE MASTER The Global Schedule Master configuration allows the Occupancy Schedule to be used as a Global Schedule Master (Occupancy Schedules 65-99). Global Schedule Master: Range No/Yes
Default Value No OVERRIDE The Override parameter is used to configure the number of hours and minutes the override will be in effect. The user initiates override by pressing the override button on the space temperature sensor. This will cause the schedule to enter into the Occupied mode. If global scheduling is used, all zones using the global schedule will enter Occupied mode. Pushing the override button during Occupied mode will have no effect.
If the occupancy override is due to end after the start of the next occupancy period, the mode will transition from occupan- cy override to occupied without becoming unoccupied, and the occupancy override timer will be reset. NOTE: If using the tenant billing function, the override hours set point must be configured between 1 and 3 hours. Override: Units Hours: Minutes
Range 00:00 to 24:00 Default Value 00:00
SET POINT GROUP NUMBER The Set Point Group Number is used to define the current zone controller as a part of a group of zone controllers which share the same set points. All zone controllers with the same Set Point Group Number will have the same set points. The set points are broadcast to the group by the zone controller defined by the Global Set Point Master configuration. A value of 0 is a local schedule. Values 1 to 16 are used for global scheduling. Set Point Group Number: Range 0 to 16
Default Value 0 GLOBAL SET POINT MASTER This configuration de- fines if the current zone controller will broadcast its set point values to the other zone controllers which are made part of the same group by configuring the Set Point Group Number. Global Set Point Master: Range No/Yes
Default Value No MAXIMUM OFFSET ADJUSTMENT This configuration determines the maximum amount that the set point will be bi- ased (up or down), by adjusting the slide bar on the space tem- perature sensor (if installed). Maximum Offset Adjustment: Units delta F (delta C)
Range 0 to 15 Default Value 2
BROADCAST ACKNOWLEDGER This configuration defines if the zone controller will be used to acknowledge broadcast messages on the communication bus. One broadcast acknowledger is required per bus, including secondary busses created by the use of a bridge. Broadcast Acknowledger: Range No/Yes
Default Value No LOADSHED FUNCTION GROUP NUMBER This de- cision is used to assign the number that the loadshed function will use when transmitting alerts and commands to differenti- ate this loadshed group from any other loadshed group in the network. The loadshed algorithm is disabled if the value 0 is entered in this decision. Loadshed Function Group Number: Range 0 to 16
Default Value 0
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Table 11 Time Schedule Configuration Table
Table 12 Option Service Configuration Table
DESCRIPTION VALUE UNITS NAME Manual Override Hours 0 hours OVRD Period 1 DOW (MTWTFSSH) 11111111 DOW1 Occupied from 00:00 OCC1 Occupied to 24:00 UNOCC1
Period 2 DOW (MTWTFSSH) 00000000 DOW2 Occupied from 00:00 OCC2 Occupied to 24:00 UNOCC2
Period 3 DOW (MTWTFSSH) 00000000 DOW3 Occupied from 00:00 OCC3 Occupied to 24:00 UNOCC3
Period 4 DOW (MTWTFSSH) 00000000 DOW4 Occupied from 00:00 OCC4 Occupied to 24:00 UNOCC4
Period 5 DOW (MTWTFSSH) 00000000 DOW5 Occupied from 00:00 OCC5 Occupied to 24:00 UNOCC5
Period 6 DOW (MTWTFSSH) 00000000 DOW6 Occupied from 00:00 OCC6 Occupied to 24:00 UNOCC6
Period 7 DOW (MTWTFSSH) 00000000 DOW7 Occupied from 00:00 OCC7 Occupied to 24:00 UNOCC7
Period 8 DOW (MTWTFSSH) 00000000 DOW8 Occupied from 00:00 OCC8 Occupied to 24:00 UNOCC8
DESCRIPTION VALUE UNITS NAME Occupancy Schedule # 64 SCH_NUM Global Schedule Master No GS_MAST Override (Hours: Minutes) 00:00 OVR
Setpoint Group # 0 SET_NUM Global Setpoint Master No SET_MAS Maximum Offset Adjust 2.0 ^F SET_LIMT Broadcast Acknowledger No BROACK Loadshed Function Group Number 0 LDSGRPN Loadshed Offset Adjust 2.0 ^F LOADLIMT Maximum Loadshed Time 60 min MAXSHED
Control Options 0 CTLOPT 0 = None 1 = RH (Monitor Only) 2 = DCV
Demand Ctrl Ventilation Proportional Gain 0.10 KP Integral Gain 0.03 KI Maximum Output Value 100.0 % MAXOUT DCV Low Voltage 0.0 Volts DCVINLO DCV High Voltage 10.0 Volts DCVINHI DCV Low Ref (ppm) 0 DCVLO DCV High Ref (ppm) 2000 DCVHI
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LOADSHED OFFSET ADJUST This decision is used to configure an amount by which the Occupied Heating and Occupied Cooling set points will be relaxed in response to a redline broadcast. The zone controller responds to a loadshed event similar to a redline event, if the loadshed command is preceded by a redline event.
Specifically, if the unit is already in redline when the load- shed command is received, the zone controller will drop one stage of heat if heating, provided there is more than one stage available.
If the unit is in cooling, the zone controller uses the Load- shed Offset Adjust to raise the cooling set point, if raising the sepoint by this amount will cause the space to be satisfied.
Also, if the system experiences a loadshed event while not in redline, it will treat the event as a redline event and raise or lower the cooling and heating set points by the amount configured in this decision. Loadshed Offset Adjustment: Units delta F (delta C)
Range 0 to 15 Default Value 2
MAXIMUM LOADSHED TIME This decision is used to specify the maximum amount of time that a redline or loadshed event may affect this zone. A timer starts at the beginning of the event and automatically terminates the event after this configurable time limit. Override: Units Minutes
Range 0 to 240 Default Value 60
CONTROL OPTIONS The Control Options configuration determines whether the zone controller will use a humidity sensor or an indoor air quality sensor. A configuration of 0 means no sensors are used. A configuration of 1 means a Humidity Sensor is used. A configuration of 2 means an IAQ Sensor is used. Control Options: Range 0 to 2
Default Value 0 DEMAND CONTROL VENTILATION These configura- tion values define the calculation parameters for determining the airflow needed for demand control ventilation (DCV). The Maximum Output Value is measured in percentage of nominal terminal cfm. Proportional Gain: Range 0.0 to 9.99
Default Value 0.10 Integral Gain: Range 0.00 to 9.99
Default Value 0.03
Maximum Output Value: Range 0.0 to 100.0% (max cool
damper position) Default Value 100.0
DCV LOW VOLTAGE This decision is used to define the lowest voltage that should be read from the demand control ventilation sensor. DCV Low Voltage: Units volts
Range 0 to 10 Default Value 0
DCV HIGH VOLTAGE This decision is used to define the highest voltage that should be read from the demand control ventilation sensor. DCV High Voltage: Units volts
Range 0 to 10 Default Value 10
DCV LOW REF (PPM) This decision is used to define the value in parts per million that correlate to the low voltage read- ing from the demand control ventilation sensor. DCV Low Ref (ppm): Units ppm
Range 0 to 5000 Default Value 0
DCV HIGH REF (PPM) This decision is used to define the value in parts per million that correlate to the high voltage reading from the demand control ventilation sensor. DCV High Ref (ppm): Units ppm
Range 0 to 5000 Default Value 2000
Set Point Configuration Table The Set Point Con- figuration Table (SETPOINT) contains decisions used to con- figure the zone controller's occupied and unoccupied heat and cool set points. It is also used to configure the demand control ventilation set point in parts per million (ppm). See Table 13. OCCUPIED HEAT The Occupied Heat set point is used to configure the heating set point for the zone controller during Occupied mode. Occupied Heat: Units F (C)
Range 40.0 to 90.0 Default Value 70.0
OCCUPIED COOL The Occupied Cool set point is used to configure the cooling set point for the zone controller during Occupied mode. Occupied Cool: Units F (C)
Range 45.0 to 99.9 Default Value 74.0
UNOCCUPIED HEAT The Unoccupied Heat set point is used to configure the heating set point for the zone controller during Unoccupied mode. Unoccupied Heat: Units F (C)
Range 40.0 to 90.0 Default Value 55.0
UNOCCUPIED COOL The Unoccupied Cool set point is used to configure the cooling set point for the zone controller during Unoccupied mode. Unoccupied Cool: Units F (C)
Range 45.0 to 99.9 Default Value 90.0
DEMAND VENT (PPM) This decision is used to config- ure the ventilation set point for the zone controller if optional Demand Control Ventilation support is used. Demand Vent: Units ppm
Range 0 to 5000 Default Value 850
Table 13 Set Point Configuration Table DESCRIPTION VALUE UNITS NAME
Setpoints Occupied Heat 70.0 dF OHSP Occupied Cool 74.0 dF OCSP Unoccupied Heat 55.0 dF UHSP Unoccupied Cool 90.0 dF UCSP Demand Vent (ppm) 850 DCVSP
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MAINTENANCE TABLES
The following sections describe the computer maintenance screens which are used to perform maintenance on the zone controller. The screens shown may be displayed differently when using different Carrier software.
System Pilot Maintenance Table The System Pilot Maintenance Table (SP_MAINT) displays the mode of the zone controller, the controlling set point, the zones current space tem- perature and occupancy status and whether this zone controller is a master. It also displays this zones occupied and unoccupied heat and cool set points which the user may alter from this table. This table provides ease of operation using the System Pilot. See Table 14. This screen can be accessed through the maintenance option on the System Pilot or through Carrier network software. TERMINAL MODE This variable will display the current operating mode of the terminal, if linkage is available, or the mode determined by the linkage coordinator using the primary air sensor, if available. If the primary air sensor has failed or was not installed, the linkage coordinator will assume the default mode of cooling. Operating Mode: Display Range OFF COOL, HEAT, COM-
MISS, ZONE_BAL, PRES- SURE, EVAC, VENT, REHEAT
Network Access Read only CONTROLLING SETPOINT Controlling Setpoint will dis- play either the heating master reference or the cooling master ref- erence depending upon what mode the terminal is in. The display will default to the heating master reference and display the last controlling master reference when in neither heating nor cooling. Controlling Setpoint: Display Units F (C)
Display Range: 40 to 245 Network Access: Read only
LINKAGE MASTER This variable displays whether this zone controller functions as the linkage coordinator for itself and other zones. Linkage Master: Display Range No/Yes
Network Access Read Only SPACE TEMPERATURE Space temperature from 10 k thermistor (Type II) located in the space. The point name of the displayed Space Temperature is SPACE_T in this status dis- play table. This point may be forced for diagnostic purposes. A non-displayed variable named SPT also exists within the zone controller as a writeable point for normal operations with a System Pilot or other devices that will write a space tempera- ture to the zone controller. The zone controller verifies that the SPT point is being written to before using it to update the SPACE_T point. Values that are received at the SPT point may be averaged with the hardware space temperature input. Space Temperature: Display Units F (C)
Display Range 40.0 to 245.0 Network Access Read/Write
OCCUPIED This variable displays whether the zone con- troller is operating in the occupied mode. Occupied: Display Range No/Yes
Network Access Read Only OCCUPIED HEAT SET POINT This variable displays the weighted average of the occupied heat set point, calculated by the linkage coordinator, from the information received from polling its associated zones. The set points are weighted by the
maximum airflow capacities of the zone controllers scanned by the linkage coordinator. Occupied Heat Set Point: Display Units F (C)
Display Range 40.0 to 99.9 Network Access Read/Write
OCCUPIED COOL SET POINT This variable displays the weighted average of the occupied cool set point, calculated by the linkage coordinator, from the information received from polling its associated zones. The set points are weighted by the maximum airflow capacities of the zone controllers scanned by the linkage coordinator. Occupied Cool Set Point: Display Units F (C)
Display Range 45.0 to 99.9 Network Access Read/Write
UNOCCUPIED HEAT SET POINT This variable dis- plays the weighted average of the unoccupied heat set point, calculated by the linkage coordinator, from the information received from polling its associated zones. The set points are weighted by the maximum airflow capacities of the zone controllers scanned by the linkage coordinator. Unoccupied Heat Set Point: Display Units F (C)
Display Range 40.0 to 99.9 Network Access None
UNOCCUPIED COOL SET POINT This variable dis- plays the weighted average of the unoccupied cool set point, calculated by the linkage coordinator, from the information received from polling its associated zones. The set points are weighted by the maximum airflow capacities of the zone controllers scanned by the linkage coordinator. Occupied Cool Set Point: Display Units F (C)
Display Range 45.0 to 99.9 Network Access None
System Pilot Alternate Maintenance Table The System Pilot Alternate Maintenance Table (ALT_DISP) dis- plays the current heating/cooling/ventilation mode as well as the damper position. See Table 15. NOTE: This screen can only be viewed using the System Pilot. To view this screen, press the right button on the System Pilot for 5 seconds while at the default zone controller display. This screen cannot be viewed using Carrier network software. DAMPER POSITION This variable displays the damper position of the zone controller in the system. Damper Position: Display Units % (open)
Display Range 0.0 to 100.0 Network Access Read/Write
COOLING IN EFFECT This variable shows if cooling mode is currently in effect in the system. Cooling In Effect: Display Range No/Yes
Network Access Read/Write HEATING IN EFFECT This variable shows if heating mode is currently in effect in the system. Heating In Effect: Display Range No/Yes
Network Access Read/Write DCV IN EFFECT This variable shows if DCV is currently in effect in the system. DCV In Effect: Display Range No/Yes
Network Access Read/Write
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Table 14 System Pilot Maintenance Table
Table 15 System Pilot Alternate Maintenance Table
Linkage Maintenance Table The Linkage Mainte- nance Table (LINKMNT) displays linkage data for the Linkage Coordinator zone controller. This data includes air source oper- ating mode, air source supply temperature, and all set points and current and occupied temperatures of the reference zone. It also displays composite occupancy data for the linked zones including next occupied day and time, next unoccupied day and time and previous unoccupied day and time. See Table 16. AIR SOURCE BUS NUMBER This variable will display the bus number of the air source that the zone controller will be communicating Linkage to, if this zone is the Linkage Coordinator. Air Source Bus Number: Range 0 to 239
Network Access None AIR SOURCE ELEMENT NUMBER This variable will display the Element Address of the Air Source that the zone controller will be communicating Linkage to, if this zone is the Linkage Coordinator. Air Source Element Number: Display Range 1 to 239
Network Access None MASTER ZONE ELEMENT NUMBER This variable will display the element address of the zone which is the Linkage Coordinator. Master Zone Element Number: Display Range 1 to 239
Network Access Read only OPERATING MODE This variable will display the cur- rent operating mode of the air source, if Linkage is available, or the mode determined by the Linkage Coordinator using the pri- mary air sensor, if available. If the primary air sensor has failed or was not installed, the Linkage Coordinator will assume the default mode of cooling. Operating Mode: Display Range COOLING, HEATING,
FREECOOL, PRES- SURE, EVAC, OFF
Network Access Read only AIR SOURCE SUPPLY TEMPERATURE This variable displays the supply temperature reading of the air source. Air Source Supply Temperature: Units F (C)
Display Range 40 to 245 Network Access None
START BIAS TIME This variable displays the Start Bias Time, in minutes, calculated by the air source. The Start Bias Time is calculated to bring the temperature up or down to the
set point under the optimum start routine. This value will be sent to all associated zones for optimum start of zone control- lers. This function is supported by all Carrier equipment which perform linkage. Start Bias Time: Display Units minutes
Display Range 0 to 255 Network Access None
OCCUPIED HEAT SET POINT This variable displays the weighted average of the occupied heat set point, calculated by the linkage coordinator, from the information received from polling its associated zones. The set points are weighted by the maximum airflow capacities of the zone controllers scanned by the linkage coordinator. Occupied Heat Set Point: Display Units F (C)
Display Range 40.0 to 99.9 Network Access None
OCCUPIED COOL SET POINT This variable displays the weighted average of the occupied cool set point, calculated by the linkage coordinator, from the information received from polling its associated zones. The set points are weighted by the maximum airflow capacities of the zone controllers scanned by the linkage coordinator. Occupied Cool Set Point: Display Units F (C)
Display Range 45.0 to 99.9 Network Access None
UNOCCUPIED HEAT SET POINT This variable dis- plays the weighted average of the unoccupied heat set point, calculated by the linkage coordinator, from the information received from polling its associated zones. The set points are weighted by the maximum airflow capacities of the zone controllers scanned by the linkage coordinator. Unoccupied Heat Set Point: Display Units F (C)
Display Range 40.0 to 99.9 Network Access None
UNOCCUPIED COOL SET POINT This variable dis- plays the weighted average of the unoccupied cool set point, calculated by the linkage coordinator, from the information re- ceived from polling its associated zones. The set points are weighted by the maximum airflow capacities of the zone con- trollers scanned by the linkage coordinator. Occupied Cool Set Point: Display Units F (C)
Display Range 45.0 to 99.9 Network Access None
DESCRIPTION VALUE UNITS STATUS FORCE NAME Terminal Mode HEAT MODE Controlling Setpoint 69.0 dF CNTSP Linkage Master (coordinator) Yes LINKMAST Space Temperature 66.0 dF SPACE_T Occupied No ZONEOCC Occupied Heat Setpoint 70.0 dF OHSP Occupied Cool Setpoint 74.0 dF OCSP Unoccupied Heat Setpoint 55.0 dF UHSP Unoccupied Cool Setpoint 90.0 dF UCSP
DESCRIPTION VALUE UNITS STATUS FORCE NAME Damper Position 0 %OPEN DMPPOS Cooling in Effect No COOLFLAG Heating in Effect Yes HEATFLAG DCV in Effect No DCVFLAG
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Table 16 Linkage Maintenance Table
REF ZONE TEMPERATURE This variable displays the weighted average of the space temperatures, collected by the linkage coordinator, from polling its associated zones. The temperatures are weighted by the maximum airflow capacities of the zone controllers scanned by the linkage coordinator. Ref Zone Temperature: Display Units F (C)
Display Range 40.0 to 245.0 Network Access Read Only
OCCUPIED REF ZONE TEMPERATURE This variable displays the weighted average of the space temperatures of occupied zones, collected by the linkage coordinator, from polling its associated zones. The temperatures are weighted by the maximum airflow capacities of the zone controllers scanned by the linkage coordinator. Occupied Ref Zone Temperature:Display Units F (C)
Display Range 40.0 to 245.0 Network Access Read Only
COMPOSITE CCN VALUE This variable displays the high, low or average of the CCN variable collected from each zone as configured in the Linkage Master (Coordinator) Con- figuration Screen. The value is sent to the network address and variable specified within that configuration table. Composite CCN Value: Display Range 0 to 65535
Network Access Read Only OCCUPANCY STATUS This variable displays a 1 when at least one of the associated zone controllers (that are being scanned) is in the occupied mode. Occupancy Status:Display Range 0 or 1 (1 = occupied)
Network Access Read only NEXT OCCUPIED DAY This variable displays the day when the next associated zone is scheduled to change from unoccupied to occupied mode. This point is read in conjunction with the next occupied time to allow the user to know the next time and day when a zone will become occupied. Next Occupied Day: Display Range MON, TUE, WED,
THU, FRI, SAT, SUN Network Access None
NEXT OCCUPIED TIME This variable displays the time of day when the next associated zone is scheduled to change from unoccupied to occupied mode. This point is read in con- junction with the next occupied day to allow the user to know the next time and day when a zone will become occupied. Next Occupied Time: Display Range 00:00 to 24:00
Network Access None NEXT UNOCCUPIED DAY This variable displays the day when the next associated zone is scheduled to change from occupied to unoccupied mode. This point is read in conjunction with the next unoccupied time to allow the user to know the next time and day when a zone will become unoccupied. Next Unoccupied Day: Display Range MON, TUE, WED,
THU, FRI, SAT, SUN Network Access None
NEXT UNOCCUPIED TIME This variable displays the time of day when the next associated zone is scheduled to change from occupied to unoccupied mode. This point is read in con- junction with the next unoccupied day to allow the user to know the next time and day when a zone will become unoccupied. Next Unoccupied Time: Display Range 00:00 to 24:00
Network Access None PREVIOUS UNOCCUPIED DAY This variable displays the day when the last associated zone changed from occupied to unoccupied mode. This point is read in conjunction with the previous unoccupied time to allow the user to know the last time and day when a zone became unoccupied. Previous Unoccupied Day: Display Range MON, TUE, WED,
THU, FRI, SAT, SUN Network Access None
PREVIOUS UNOCCUPIED TIME This variable displays the time of day when the last associated zone changed from occupied to unoccupied mode. This point is read in conjunction with the previous unoccupied day to allow the user to know the last time and day when a zone became unoccupied. Previous Unoccupied Time: Display Range 00:00 to 24:00
Network Access None
DESCRIPTION VALUE UNITS STATUS FORCE NAME Zone Linkage Air Source Bus # 0 ASBUSNUM Air Source Element # 8 ASDEVADR Master Zone Element # 118 MZDEVADR Operating Mode COOLING ASOPMODE Air Source Supply Temp 55.0 dF ASTEMP Start Bias Time 0 min STRTBIAS Occ Heat Setpt 68.0 dF OHS Occ Cool Setpt 74.0 dF OCS Unoc Heat Setpt 64.0 dF UHS Unoc Cool Setpt 78.0 dF UCS Ref Zone Temp 71.0 dF ZT Occ Ref Zone Temp 71.0 dF OZT Composite CCN Value 0.0 CCCNVAL Occupancy Status (1 = occ) 0 OCCSTAT Next Occupied Day Fri NXTOCCD Next Occupied Time 10:15 NXTOCCT Next Unoccupied Day NXTUNOD Next Unoccupied Time 00:00 NXTUNOT Prev Unoccupied Day Fri PRVUNOD Prev Unoccupied Time 04:01 PRVUNOT
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Master Zone Maintenance Table The Master Zone Maintenance Table (MZNMAINT) displays variables used by the Linkage Coordinator zone controller when determining the system mode (heat/cool/vent). It also indicates whether a by- pass controller and an air source are being used and which zone is the reference zone. The user may override cooling or heating time guards from this table. See Table 17. DESIRED SYSTEM MODE This variable will display the desired operating mode of the air source. Desired Operating Mode: Display Range COOLING, HEATING,
FREECOOL, PRES- SURE, EVAC, OFF
Network Access Read only SYSTEM MODE This variable will display the current system mode of the air source, if Linkage is available, or the mode determined by the Linkage Coordinator using the prima- ry air sensor, if available. If the primary air sensor has failed or was not installed, the Linkage Coordinator will assume the default mode of cooling. System Mode: Display Range COOLING, HEATING,
FREECOOL, PRES- SURE, EVAC, OFF
Network Access Read only AIR SOURCE DETECTED This variable displays whether the Linkage Coordinator zone controller has detected a communicating air source at the address configured in the Linkage Configuration Table. Air Source Detected: Display Range Yes/No
Network Access Read only BYPASS CONTROLLER This variable displays whether the Linkage Coordinator zone controller has detected a com- municating bypass controller as configured in the Linkage Configuration Table. Bypass Controller: Display Range Yes/No
Network Access Read only REFERENCE ZONE DEMAND This variable displays the demand of the reference zone. When occupied, the demand will be a function of T56 bias and configured Occupied
Heating and Cooling set points. When in unoccupied mode, the demand will be directly related to configured Unoccupied Heating and Cooling set points.
The reference zone is re-determined on every scan of the zone controllers which is at a one minute frequency. Reference Zone Demand: Display Range delta 0.00 to 99.9 F
Network Access Read only REFERENCE ZONE # This variable displays the number of the zone whose heating or cooling needs are the greatest at any time and that requires the same mode as the system.
For example, if the Desired System Mode is cooling, the Reference Zone # is that mode that has the greatest cooling need.
The zones are numbered such that the master zone is zone number 1 and the zone that is one address below the master zone is zone number 2 and so on to zone number 32. If the master zone is at address 0, 118 then zone no. 2 is the zone controller at address 0, 117 and zone no. 3 is the zone controller at address 0, 116 and so on. Reference Zone Number: Display Range 1 to 32
Network Access Read only COOL MODE LOCK OUT This variable displays whether the system has been locked out of cooling mode. If this decision is forced to Yes, the system may not go into cooling mode regardless of how many zones are calling for cooling. Cool Mode Lock Out: Display Range Yes/No
Network Access Read/Write AVERAGE COOL DEMAND This variable displays the average cooling demand of all occupied linked zones, taking into consideration the size of each zone as configured in the Terminal Service Configuration Table. This is so that the size of a zone will be considered when comparing its demand to other zones. If all zones are unoccupied then all zones will be included in the calculation. Average Cool Demand: Display Range delta 0.00 to 99.9 F
Network Access Read Only
Table 17 Master Zone Maintenance Table
DESCRIPTION VALUE UNITS STATUS FORCE NAME Desired System Mode COOLING NEXTMODE System Mode COOLING LINKMODE Air Source Detected? Yes AIRSOURC Bypass Controller? No BYPASS Reference Zone Demand 0.0 ^F REF_DMD Reference Zone # 0 REF_ZONE Cool Mode Lock Out? No C_LOCK Average Cool Demand 0.0 ^F AVGC_DMD Max Cool Demand 0.0 ^F MAXC_DMD Max Cool Demand Zone 0 MAXCZONE Cooling Time Guard 0.0 min C_TGUARD Time Guard Override No TG_OVRD Heat Mode Lock Out? No H_LOCK Average Heat Demand 0.0 ^F AVGH_DMD Max Heat Demand 0.0 ^F MAXH_DMD Max Heat Demand Zone 1 MAXHZONE Heating Time Guard 0.0 min H_TGUARD Mode Reselect Time 0.0 min RESELECT Outdoor Air Temperature 0.0 dF OAT
44
MAX COOL DEMAND This variable displays the maxi- mum cooling demand of all occupied linked zones, taking into consideration the size of each zone as configured in the Terminal Service Configuration Table. This is so that the size of the zone will be considered when comparing its demand to other zones. Max Cool Demand: Display Range delta 0.00 to 99.9 F
Network Access Read Only MAX COOL DEMAND ZONE This variable displays the number of the zone that has the weighted maximum cooling demand of all occupied linked zones. If all zones are unoccupied then all zones will be included in the calculation. Max Cool Demand Zone: Display Range 0 to 31
Network Access Read Only COOLING TIME GUARD This variable displays the re- maining time that the cooling mode must be active before a mode change can take effect. The cooling time guard timer becomes active whenever the COOL mode goes into effect. This timer value is configured in the Master Service Configuration Table. Cooling Time Guard: Display Range 0 to 255 minutes
Network Access Read Only TIME GUARD OVERRIDE This variable displays whether there is a time guard override in effect. The override acts as a one time override of any time guard in effect, heating or cooling. NOTE: The time guard override applies to the mode sent to the air source. This is independent of the mode reselect function. Forcing this point to Yes will allow the user to initiate a Time Guard Override. Time Guard Override: Display Range Yes/No
Network Access Read/Write HEAT MODE LOCK OUT This variable displays whether the system has been locked out of heating mode. If this decision is forced to Yes, the system may not go into heating mode regardless of how many zones are calling for heating. Heat Mode Lock Out: Display Range Yes/No
Network Access Read/Write AVERAGE HEAT DEMAND This variable displays the average heating demand of all occupied linked zones, taking into consideration the size of each zone as configured in the Terminal Service Configuration Table. This is so that the size of a zone will be considered when comparing its demand to other zones. If all zones are unoccupied then all zones will be included in the calculation. Average Heat Demand: Display Range delta 0.00 to 99.9 F
Network Access Read Only MAX HEAT DEMAND This variable displays the maxi- mum heating demand of all occupied linked zones, taking into consideration the size of each zone as configured in the Terminal Service Configuration Table. This is so that the size of the zone will be considered when comparing its demand to other zones. Max Heat Demand: Display Range delta 0.00 to 99.9 F
Network Access Read Only MAX HEAT DEMAND ZONE This variable displays the number of the zone that has the weighted maximum heating demand of all occupied linked zones. If all zones are unoccu- pied then all zones will be included in the calculation.
Max Heat Demand Zone: Display Range 0 to 31
Network Access Read Only HEATING TIME GUARD This variable displays the re- maining time that the heating mode must be active before a mode change can take effect. The heating time guard timer be- comes active whenever the HEAT mode goes into effect. This timer value is configured in the Master Service Configuration Table. Heating Time Guard: Display Range 0 to 255 minutes
Network Access Read Only MODE RESELECT TIME This variable displays the re- maining time that must elapse before the mode change can take effect. The user can override the timer by forcing this value. This timer value is configured in the Master Service Configuration Table. Mode Reselect Time: Display Range 0 to 255 minutes
Network Access Read/Write OUTDOOR AIR TEMPERATURE This variable displays the outdoor air temperature. Outdoor Air Temperature: Display Range 40 to 245 F
Network Access Read Only
Time Schedule Maintenance Table The Time Schedule Maintenance Table (OCCDEFME) displays occu- pancy set points, the occupied mode and whether and override is in progress. See Table 18. MODE This variable displays the current occupied mode for the zone controller. If the zone controller is following its own local schedule, this is the result of the local schedule status. NOTE: This information only applies to the locally configured occupancy schedule or if the zone controller is configured to be the Global Schedule Master. The information does not apply to a zone if it is following a global schedule. Mode: Display Range 0 or 1 (1 = occupied)
Network Access None CURRENT OCCUPIED PERIOD If the zone controller is configured to determine occupancy locally, this variable will display the current period determining occupancy. Current Occupied Period: Display Range 1 to 8
Network Access None OVERRIDE IN PROGRESS If an occupancy override is in progress, this variable will display a yes. Override In Progress: Display Range Yes/No
Network Access None OVERRIDE DURATION This variable displays the num- ber of minutes remaining for an occupancy override which is in effect. If the number of override hours was downloaded, the value will be converted to minutes. Override Duration: Display Units minutes
Display Range 0 to 240 Network Access None
OCCUPIED START TIME This variable displays the time that the current occupied mode began. Occupied Start Time: Display Range 00:00 to 23:59
Network Access None
45
Table 18 Time Schedule Maintenance Table
UNOCCUPIED START TIME This variable displays the time that the current occupied mode will end (the beginning of the next unoccupied mode). Unoccupied Start Time: Display Range 00:00 to 24:00
Network Access None NEXT OCCUPIED DAY This variable displays the day when the next occupied period is scheduled to begin. This point is read in conjunction with the next occupied time to allow the user to know the next time and day when the next occupied period will occur. NOTE: If the current mode is occupied, this point makes refer- ence to the next occupied period and, in most cases, may not be the same as the current occupied start time. Next Occupied Day: Display Range MON, TUE, WED,
THU, FRI, SAT, SUN Network Access None
NEXT OCCUPIED TIME This variable displays the time of day when the next occupied period will occur. This point is read in conjunction with the next occupied day to allow the user to know the next time and day when the zone will become occupied. NOTE: If the current mode is occupied, this point makes reference to the next occupied period and, in most cases, may not be the same as the current occupied start time. Next Occupied Time: Display Range 00:00 to 24:00
Network Access None NEXT UNOCCUPIED DAY This variable displays the day when the next unoccupied period is scheduled to begin. This point is read in conjunction with the next unoccupied time to allow the user to know the next time and day when the zone will become unoccupied. NOTE: If the current mode is unoccupied, this point makes reference to the next unoccupied period and, in most cases, may not be the same as the current unoccupied start time. Next Unoccupied Day: Display Range MON, TUE, WED,
THU, FRI, SAT, SUN Network Access None
NEXT UNOCCUPIED TIME This variable displays the time of day when the next unoccupied period is scheduled to begin. This point is read in conjunction with the next
unoccupied day to allow the user to know the next time and day when the zone will become unoccupied. NOTE: If the current mode is unoccupied, this point makes reference to the next unoccupied period and, in most cases, may not be the same as the current unoccupied start time. Next Unoccupied Time: Display Range 00:00 to 24:00
Network Access None LAST UNOCCUPIED DAY This variable displays the last day when the zone changed from occupied to unoccupied mode. This point is read in conjunction with the last unoccu- pied time to allow the user to know the last time and day when the zone became unoccupied. Last Unoccupied Day: Display Range MON, TUE, WED,
THU, FRI, SAT, SUN Network Access None
LAST UNOCCUPIED TIME This variable displays the last time of day when the zone changed from occupied to unoc- cupied mode. This point is read in conjunction with the last unoccupied day to allow the user to know the last time and day when a zone became unoccupied. Last Unoccupied Time: Display Range 00:00 to 24:00
Network Access None
System Commissioning Maintenance Table The System Commissioning Maintenance Table (SYSTCOMM) displays and permits the setting of all dampers in the linked sys- tem from the Linkage Coordinator zone controller. The bypass controller damper position, system pressure and pressure set point are also displayed and the pressure set point may be altered directly from this table. See Table 19. COMMISSIONING MODE This variable is used to put the master zone controller into the commissioning mode. Force this point to enable. The Linkage Coordinator zone controller will be ready to accept a command to perform the tests and functions on this screen. The Linkage Coordinator zone con- troller will go into ZONE_BAL mode. NOTE: If this zone controller is not the Linkage Coordinator, enabling this variable will have no effect. Commissioning Mode: Display Range Disable/Enable
Default Value Disable Network Access Read /Write
DESCRIPTION VALUE UNITS NAME Mode 1 MODE Current Occupied Period 2 PERIOD Override in Progress No OVERLAST Override Duration 0 min OVERDURA Occupied Start Time 08:00 OCCSTART Unoccupied Start Time 18:00 UNSTART Next Occupied Day Thu NXTOCCD Next Occupied Time 00:00 NXTOCCT Next Unoccupied Day Wed NXTUNOD Next Unoccupied Time 18:00 NXTUNOT Last Unoccupied Day PRVUNOD Last Unoccupied Time 00:00 PRVUNOT
46
Table 19 System Commissioning Maintenance Table
AUTO DISABLE TIMER This variable displays the num- ber of minutes remaining before the system commissioning mode will be automatically disabled. System commissioning mode is automatically disabled after one hour of no activity in this table. The Auto Disable Timer is reset each time a value is changed in this table. Auto Disable Timer: Display Range 0 to 60 min
Network Access None ALL ZONE DAMPERS TO MAX This variable displays whether the Linkage Coordinator zone controller has been directed to set all of its linked zone controllers to their config- ured Cool Maximum Positions (Damper Service Configuration Table). If this decision is forced to Enable, the Linkage Coordi- nator zone controller will set all system zone dampers to their configured Cool Maximum Positions and display the values in Zone (1-32) Damper Position variables. At this time if any of the Zone (1-32) Damper Position variables are forced, the new position will be written to the zones Cool Maximum Position and Heat Maximum Position configuration values and the zone will be repositioned to this new maximum position.
NOTE: If this zone controller is not the Linkage Coordinator, enabling this variable will have no effect. All Zone Dampers to Max: Display Range Enable/Disable
Network Access Read/Write ALL ZONE DAMPERS TO MIN This variable displays whether the Linkage Coordinator zone controller has been directed to set all of its linked zone controllers to their config- ured Cool Minimum Positions (Damper Service Configuration Table). If this decision is forced to Enable, the Linkage Coordi- nator zone controller will set all system zone dampers to their configured Cool Minimum Positions and display the values in Zone (1-32) Damper Position variables. At this time if any of the Zone (1-32) Damper Position variables are forced, the new position will be written to the zones Cool Minimum Position and Heat Minimum Position configuration values and the zone will be repositioned to this new minimum position. NOTE: If this zone controller is not the Linkage Coordinator, enabling this variable will have no effect. All Zone Dampers to Min: Display Range Enable/Disable
Network Access Read/Write
DESCRIPTION VALUE UNITS STATUS FORCE NAME Commissioning Mode Disable Enable/Disable SCMOD Auto-Disable Timer 0.0 Min SCTIME All Zone Dampers to Max Disable Enable/Disable ZD_MAX All Zone Dampers to Min Disable Enable/Disable ZD_MIN Position Single Zone Disable Enable/Disable ZD_SING Zone 1 Damper Position 0 %OPEN ZD_POS01 Zone 2 Damper Position 0 %OPEN ZD_POS02 Zone 3 Damper Position 0 %OPEN ZD_POS03 Zone 4 Damper Position 0 %OPEN ZD_POS04 Zone 5 Damper Position 0 %OPEN ZD_POS05 Zone 6 Damper Position 0 %OPEN ZD_POS06 Zone 7 Damper Position 0 %OPEN ZD_POS07 Zone 8 Damper Position 0 %OPEN ZD_POS08 Zone 9 Damper Position 0 %OPEN ZD_POS09 Zone 10 Damper Position 0 %OPEN ZD_POS10 Zone 11 Damper Position 0 %OPEN ZD_POS11 Zone 12 Damper Position 0 %OPEN ZD_POS12 Zone 13 Damper Position 0 %OPEN ZD_POS13 Zone 14 Damper Position 0 %OPEN ZD_POS14 Zone 15 Damper Position 0 %OPEN ZD_POS15 Zone 16 Damper Position 0 %OPEN ZD_POS16 Zone 17 Damper Position 0 %OPEN ZD_POS17 Zone 18 Damper Position 0 %OPEN ZD_POS18 Zone 19 Damper Position 0 %OPEN ZD_POS19 Zone 20 Damper Position 0 %OPEN ZD_POS20 Zone 21 Damper Position 0 %OPEN ZD_POS21 Zone 22 Damper Position 0 %OPEN ZD_POS22 Zone 23 Damper Position 0 %OPEN ZD_POS23 Zone 24 Damper Position 0 %OPEN ZD_POS24 Zone 25 Damper Position 0 %OPEN ZD_POS25 Zone 26 Damper Position 0 %OPEN ZD_POS26 Zone 27 Damper Position 0 %OPEN ZD_POS27 Zone 28 Damper Position 0 %OPEN ZD_POS28 Zone 29 Damper Position 0 %OPEN ZD_POS29 Zone 30 Damper Position 0 %OPEN ZD_POS30 Zone 31 Damper Position 0 %OPEN ZD_POS31 Zone 32 Damper Position 0 %OPEN ZD_POS32 Bypass Damper Position 0 %OPEN BDP Bypass Pressure Sensor 0.00 in H2O BPSENS Bypass Pressure Setpoint 0.00 in H2O BPSETP
47
POSITION SINGLE ZONE This variable displays whether the individual zone positioning process has been enabled. If this decision is forced to Enable, the Linkage Coordinator zone controller will set all system zone dampers to their configured Cool Maximum Positions and display the values in Zone (1-32) Damper Position variables.
At this time, if any of the Zone (1-32) Damper Position variables are forced, the zone will be repositioned to this new maximum position. The forced position will be shown on the Zone (1-32) Damper Position variable with a Supervisor force. This Supervisor force will disappear and the dampers current position will display when the new damper position has been broadcasted to the zone controller's Damper Reference point. The Damper Reference point will display a Control force which will remain until System Commissioning is disabled and the Damper Position will go to the new desired position. NOTE: If this zone controller is not the Linkage Coordinator, enabling this variable will have no effect. Position Single Zone: Display Range Enable/Disable
Network Access Read/Write ZONE (1-32) DAMPER POSITION This variable displays the current damper position of all system zones during system commissioning. These values can be used to verify and change configured maximum damper positions when All Zone Dampers to Max is Enabled and verify and change configured minimum damper positions when All Zone Dampers to Min is Enabled. The user can also reposition individual zones dampers when Position Single Zone is Enabled. Force this value to the desired minimum or maximum damper position. Zone (1-32) Damper Position: Display Range 0 to 100%
Network Access Read/Write BYPASS DAMPER POSITION This variable displays the bypass damper position. Bypass Damper Position: Display Range 0 to 100%
Network Access No BYPASS PRESSURE SENSOR This variable displays the current value of the bypass static system pressure. Bypass Pressure Sensor: Display Range 0.00 to 2.00 in. wg
Network Access No BYPASS PRESSURE SET POINT This variable displays the current Bypass Pressure set point. At any time in the system commissioning process, the user can force the Bypass Pressure set point. Typically the maximum unit rated duct velocity pres- sure would be entered in this decision prior to enabling All Zone Dampers to Maximum. When this value is forced, the new set point is written to the Pressure Set Point Table in the bypass controller over the communication network. The bypass con- troller then controls to the new bypass pressure set point. Bypass Pressure Set Point: Display Range 0.00 to 2.00 in. wg
Network Access Read/Write
Zone Status Maintenance Table The Zone Status Maintenance Table (ZCOMAINT) displays the communica- tion status of the air source, the optional bypass controller, and each of the zone controllers in the 3V control system. This table is only active in the Linkage Coordinator zone controller. See Table 20. AIR SOURCE STATUS This variable displays the com- munication status of the air source. NOTE: If the zone controller is not a Linkage Coordinator, the status will be NONE. Air Source Status: Display Range Com OK, None, Failed
BYPASS COMM STATUS This variable displays the communication status of the bypass damper controller. NOTE: If the zone controller is not a Linkage Coordinator, the status will be NONE. Bypass Com Status: Display Range Com OK, None, Failed ZONE (1-32) COMM STATUS This variable displays the communication status of each zone controller. NOTE: If the zone controller is not a Linkage Coordinator, the status will be NONE. Zone (1-32) Comm Status: Display Range Com OK, None, Failed
Zone Device Maintenance Table The Zone Device Maintenance Table (ZDEVMAIN) displays the type of device found at each address in the 3V control system beginning with the device found at the address that is one element higher than the Linkage Coordinator zone controller, decrementing by 1 until the configured number of zones have been checked. This table is only active in the Linkage Coordinator zone controller. See Table 21. BYPASS DEVICE TYPE This variable displays the type of device found at the location where there is typically a bypass controller. This location is one address higher than the Linkage Coordinator zone controller. Valid displays for this variable are: None = No device present/com. fail/ pending Master = Linkage Coordinator found (typically found at
ZD_DEV01 only) Bypass = bypass controller PDZone = pressure dependent zone PIZone = pressure independent zone Other = other Carrier Network device found NOTE: If this zone controller is not a Linkage Coordinator, the value of this display will be None. ZONE (1-32) DEVICE TYPE This variable displays the type of device found when the master scans zones 1 through n where n is the number of zones (1-32) configured in the Number of Zones decision in the Linkage Configuration Table. The zones are scanned in descending order, beginning with the Linkage Coordinator itself at zone n.
Valid displays for this variable are: None = No device present/com. fail/pending Master = Linkage Coordinator found (typically found at
ZD_DEV01 only) Bypass = bypass controller PDZone = pressure dependent zone PIZone = pressure independent zone Other = other Carrier Network device found NOTE: If this zone controller is not a Linkage Coordinator, the value of this display will be None.
Zone Maintenance Table The Zone Maintenance Table (ZNMAINT) displays the status of the air source (heating, cooling, ventilation) and the reference values that the zone is using for control. This table also displays whether this zone is the Linkage Coordinator, whether there is an override in effect, and whether there are any loadshed conditions currently in effect. See Table 22. OCCUPIED This variable displays the current occupied mode for the zone controller. If the zone controller is following its own local schedule, this is the result of the local schedule status. If the zone controller is configured to follow a global schedule, this displays the mode last received from a global schedule broadcast. Occupied: Display Range No/Yes
Network Access Read Only LINKAGE ZONE This variable displays if air source link- age is in effect. Linkage Zone: Display Range No/Yes
Network Access Read Only
48
Table 20 Zone Status Maintenance Table
DESCRIPTION VALUE UNITS STATUS FORCE NAME Air Source Status Failed AIRSRCE Bypass Comm Status Failed ZD_CS00 Zone 1 Comm Status Com OK ZD_CS01 Zone 2 None ZC_CS02 Zone 3 None ZC_CS03 Zone 4 None ZC_CS04 Zone 5 None ZC_CS05 Zone 6 None ZC_CS06 Zone 7 None ZC_CS07 Zone 8 None ZC_CS08 Zone 9 None ZC_CS09 Zone 10 None ZC_CS10 Zone 11 None ZC_CS11 Zone 12 None ZC_CS12 Zone 13 None ZC_CS13 Zone 14 None ZC_CS14 Zone 15 None ZC_CS15 Zone 16 None ZC_CS16 Zone 17 None ZC_CS17 Zone 18 None ZC_CS18 Zone 19 None ZC_CS19 Zone 20 None ZC_CS20 Zone 21 None ZC_CS21 Zone 22 None ZC_CS22 Zone 23 None ZC_CS23 Zone 24 None ZC_CS24 Zone 25 None ZC_CS25 Zone 26 None ZC_CS26 Zone 27 None ZC_CS27 Zone 28 None ZC_CS28 Zone 29 None ZC_CS29 Zone 30 None ZC_CS30 Zone 31 None ZC_CS31 Zone 32 None ZC_CS32
49
Table 21 Zone Device Maintenance Table
Table 22 Zone Maintenance Table
DESCRIPTION VALUE UNITS STATUS FORCE NAME Bypass Device Type Bypass ZD_DEV00 Zone 1 Device Type Master ZD_DEV01 Zone 2 PD Zone ZD_DEV02 Zone 3 PD Zone ZD_DEV03 Zone 4 None ZD_DEV04 Zone 5 None ZD_DEV05 Zone 6 None ZD_DEV06 Zone 7 None ZD_DEV07 Zone 8 None ZD_DEV08 Zone 9 None ZD_DEV09 Zone 10 None ZD_DEV10 Zone 11 None ZD_DEV11 Zone 12 None ZD_DEV12 Zone 13 None ZD_DEV13 Zone 14 None ZD_DEV14 Zone 15 None ZD_DEV15 Zone 16 None ZD_DEV16 Zone 17 None ZD_DEV17 Zone 18 None ZD_DEV18 Zone 19 None ZD_DEV19 Zone 20 None ZD_DEV20 Zone 21 None ZD_DEV21 Zone 22 None ZD_DEV22 Zone 23 None ZD_DEV23 Zone 24 None ZD_DEV24 Zone 25 None ZD_DEV25 Zone 26 None ZD_DEV26 Zone 27 None ZD_DEV27 Zone 28 None ZD_DEV28 Zone 29 None ZD_DEV29 Zone 30 None ZD_DEV30 Zone 31 None ZD_DEV31 Zone 32 None ZD_DEV32
DESCRIPTION VALUE UNITS STATUS FORCE NAME Occupied Yes ZONE_OCC Linkage Zone No LINKSLAV Linkage Master Yes LINKMAST Timed Override in Effect No TIMOV Setpoint Offset (T-56) 0.0 ^F T56OFF Cool Master Reference 74.0 dF CCMR Damper Reference 0 % PDSMR Supp. Heat Lockout No SH_LOCK Heat Master Reference 70.0 dF HCMR Heat Submaster Reference 110 dF HSMR Temp Control Position 0 % TC_DPOS DCV Damper % 0 % DCVD Cooling in Effect No COOLFLAG Heating in Effect Yes HEATFLAG DCV in Effect No DCVFLAG Clear Alarms No CLR_ALRM Loadshed Function Redline No REDLINE Loadshed No LOADSHED Loadshed Timer 0 min LOADTIME
50
LINKAGE MASTER This variable displays if this zone controller is functioning as a Linkage Coordinator. Linkage Master: Display Range No/Yes
Network Access Read Only TIMED OVERRIDE IN EFFECT This variable indicates if a timed override is in effect. Timed Override in Effect: Display Range No/Yes
Network Access Read Only SET POINT OFFSET (T-56) This variable displays the degrees of offset when using a 33ZCT56SPT space tempera- ture sensor with set point adjustment. The slidebar on the sensor will adjust the desired temperature in that zone, up or down, when it is moved. The Set Point Offset (T-56) variable can disable set point offset (set to 0). Set Point Offset (T-56): Display Units delta F (delta C)
Display Range 15.0 to 15.0 Network Access Read/Write
COOL MASTER REFERENCE This variable displays the cooling master reference from the set point schedule. This should be the occupied cool set point when the zone is in occupied mode or the unoccupied cool set point when the zone is in unoccupied mode. This variable will display any space temperature sensor slidebar offset that is being applied. Cool Master Reference: Display Units F (C)
Display Range 45.0 to 99.9 Network Access Read/Write
DAMPER REFERENCE This variable displays the cur- rent damper reference position. Damper Reference: Display Units % (open)
Display Range 0 to 100 Network Access Read/Write
SUPPLEMENTAL HEAT LOCKOUT This variable dis- plays if Supplemental Heat is locked out by the outside air temperature or if forced. If this variable is set to Yes, then Supplemental Heat is locked out. Supplemental Heat Lockout:
Display Range No/Yes Default No Network Access Read/Write
HEAT MASTER REFERENCE This point displays the occupied heat set point if occupied, or the unoccupied heat set point if unoccupied. This variable will display any space temperature sensor slidebar offset that is being applied. Heat Master Reference: Display Units F (C)
Display Range 40.0 to 90.0 Network Access Read/Write
HEAT SUBMASTER REFERENCE If heat is enabled, this variable displays the desired supply air temperature calcu- lated to heat the space. This is a result of the heating PID loop calculation. Heat Submaster Reference: Display Units F (C)
Display Range 0 to 240 Network Access Read/Write
TEMPERATURE CONTROL POSITION This variable displays the airflow set point determined from the temperature loop calculation. The zone controller compares the temperature demand and DCV loops. The greatest of the two will become the primary damper airflow reference.
Temperature Control Position: Display Units %
Display Range 0 to 100 Network Access Read Only
DCV DAMPER % This variable displays the damper set point determined by the demand control ventilation loop calculation. The zone controller compares the demand of the temperature and demand control ventilation loops. The greatest of the two will become the Damper Reference. DCV Damper %: Display Units %
Display Range 0 to 100 Network Access Read Only
COOLING IN EFFECT This variable displays if the air source is in the Cooling mode and if the terminal is using the cooling damper set points. Cooling In Effect: Display Range No/Yes
Network Access Read Only HEATING IN EFFECT This variable displays if the air source is in the Heat mode and if the terminal is using the heating damper set points. Heating In Effect: Display Range No/Yes
Network Access Read Only DCV IN EFFECT This variable indicates if the DCV con- trol is active. DCV In Effect: Display Range No/Yes
Network Access Read Only CLEAR ALARMS This variable displays the commanded state of the Clear Alarms function. If this decision is forced to Yes, all alarms in the Alarm History Table will be cleared and this decision will automatically be set back to No. Clear Alarms: Display Range No/Yes
Network Access Read/Write LOADSHED FUNCTION REDLINE This variable dis- plays whether the zone controller is currently participating in a redline event and as a result has relaxed its current set points by the amount configured in the Options Configuration Table. Redline: Display Range No/Yes
Network Access Read Only LOADSHED This variable displays whether the zone con- troller is currently participating in a loadshed event. If the loadshed event was preceded by a redline event and was in redline when the loadshed command was received, then the zone controller will drop one stage of heat if in heating mode and provided there is more than one stage available. If in cooling mode, the zone controller will raise the cooling set point by the amount configured in the Options Configuration Table, if this will cause the space to be satisfied. Loadshed: Display Range No/Yes
Network Access Read Only LOADSHED TIMER This variable displays the timer that is started during a redline or loadshed event to automatically timeout the event after a user programmable time limit. The time limit is configurable in the Option Service Configuration Table. NOTE: The redline/loadshed response will be automatically cancelled upon termination of the current occupied period. Loadshed Timer: Display Range 0 to 240 min
Network Access Read Only
Zone Commissioning Maintenance Table The Zone Commissioning Maintenance Table (ZONECOMM) displays and permits the setting of damper position for the purpose of damper actuator transducer calibration. It also allows the user to test the fan on series and parallel fan powered terminals and to test the heat outputs. It displays the supply air temperature for the heat test and will display an alarm if the calibration fails. See Table 23.
51
Table 23 Zone Commissioning Maintenance Table
COMMISSIONING MODE This variable is used to put the zone controller into the commissioning mode. Force this point to enable. The zone controller will be ready to accept a command to perform the tests and functions on this screen. NOTE: Commissioning mode will automatically be dis- abled after one hour. Commissioning Mode: Display Range Disable/Enable
Default Value Disable Network Access Read /Write
DAMPER ACTUATOR CALIBRATION The Damper Actuator calibration is the first calibration which should be per- formed on a newly installed actuator. The zone controller will command the actuator to close and read the feedback potenti- ometer to determine the zero position of the damper. It will then command the damper to fully open. The zone controller will read the potentiometer to determine the maximum open position. Damper positions from closed to maximum open will be scaled to read 0 to 100% for the damper position.
The entire calibration procedure can take up to 3 minutes. If the damper fails the test, the Auto-Calibration point will indi- cate an Alarm. Damper Actuator Calibration: Display Range Disable/Enable
Default Value Disable Network Access Read /Write
FAN OVERRIDE This variable can be used to test the fan on series and parallel fan powered terminals. Enabling this point will cause the terminal fan to run until this point is dis- abled or the commissioning mode is ended. Fan Override: Display Range Disable/Enable
Default Value Disable Network Access Read /Write
HEATING OVERRIDE This variable can be used to test the heat outputs. Enabling this variable will cause the heat to be modulated or staged to full heat until this point is disabled or the force released. Ducted reheat operation will be controlled so as not to exceed the configured maximum duct temperature. The supply-air temperature is included on this screen to verify that the heat is operating. Heating Override: Display Range Disable/Enable
Default Value Disable Network Access Read /Write
DAMPER POSITION This variable displays the current damper position. During CFM Balancing, this variable is used to display the position of the damper. This value can be used to see if the damper is fully open and the system air is sufficient. Damper Position: Display Units % (open)
Display Range 0 to 100 Default Value 100 Network Access Read Only
SUPPLY-AIR TEMPERATURE This variable displays the supply-air temperature for ease of verifying the heat opera- tion during the heat test.
Supply-Air Temperature: Display Units F (C)
Display Range 40.0 to 245.0 Default Value 0.0 Network Access Read /Write
DAMPER CALIBRATION STATUS This variable will display Normal if the actuator calibration is successful. If damper or transducer calibration was not successful, this point will display Alarm and the zone controller will broadcast the appropriate alarm (if configured to transmit alarms). Damper Calibration Status:Display Range Normal/Alarm
Default Value Normal Network Access Read Only
OPERATION
System Mode Selection The Linkage Coordinator will determine whether the system as a whole requires heating or cooling and whether the air source will operate in occupied or unoccupied mode. This will be determined by obtaining the heating or cooling needs of each zone and adjusting for the duct size of the zones and calculating an average cool demand (ACD) and average heat demand (AHD) as well as its occupancy mode. The Linkage Coordinator will be the highest addressed zone controller of all zones that are served by the same air source equipment and it will obtain this informa- tion when it scans all its associated zones on approximately 1-minute intervals.
When using the Occupied Heating Set Point (OHS) or Occupied Cooling Set Point (OCS) the actual configured val- ues will be used including T56 biased offset (if present) as the zone operating set points. The T56 bias is not applied to Unoc- cupied Heating and Cooling Set Points.
Temperature demand will be used to indicate individual zone demand and for accumulating the total weighted average demand for heating and for cooling. If the space temperature (SPT) is greater than the OCS then the zone demand is cooling and the space temperature will be used in the ACD. If the SPT is less than the OHS than the zone demand will be heating and the space temperature will be used in the AHD. If the SPT is between the OHS and OCS, the zone will be considered to have no demand and will not be included in determining the system mode. Only those zones with a valid SPT of greater than 40 F, less than 245 F, and a configured damper size greater than 0 will be included in the calculations.
If any zone is occupied then the Linkage Coordinator will calculate the ACD and AHD using only the occupied zones. If no zones are occupied will then the Linkage Coordinator will calculate the ACD and AHD including all zones in the calcula- tion. The zone controller then display the ACD, the Max Cool Demand and Max Cool Demand Zone, the AHD, the Max Heat Demand Max Cool Demand Zone, the Reference Zone Demand and Zone Identification for each demand in the Master Zone maintenance table.
DESCRIPTION VALUE UNITS STATUS FORCE NAME Commissioning Mode Disable CMODE Damper Cal Disable CALIBRAT Fan Override Disable FANOVER Heating Override Disable HEATOVER Damper Position 10 %OPEN DMPPOS Supply Air Temperature 67.1 dF SAT Damper Cal Status Normal CAL_ALRM
405
52
If no mode is currently active, the Linkage Coordinator will determine the mode by first comparing the AHD and the ACD. If only one demand is greater than the start demand (Heat Start Avg. Demand or Cool Start Avg. Demand in the Master [Link- age Coordinator] Service Configuration table), the system will start in that mode. If both average demands are greater than the configured minimum average demand required to begin a mode, then the mode with the greatest demand will be selected. If both heating and cooling average demand are exactly the same then the mode with the greatest individual zone demand will determine the system mode.
Once the mode is selected, the information is communicat- ed to its air source via the Linkage Coordinator so that the air source may respond to the requested mode. The Linkage Coor- dinator also has the capability of locking out the mode based on the outside air temperature (OAT). If the OAT has exceeded the lockout set point for that mode, then the Linkage Coordinator will not request that mode from the air source. There is a fixed 3 F hysteresis on the heating and cooling set points before a mode is re-enabled.
Once a mode has begun, the system mode reselect timer is started to monitor the elapsed time of the operating mode. A mode will end when the average demand for that mode drops below the average demand hysteresis for the mode (Heat Mode Hysteresis or Cool Mode Hysteresis in the Master [Linkage Coordinator] Service Configuration table). If a system mode is currently active and the average demand for the opposite mode becomes greater than the current mode average demand, and the opposite mode demand is also greater than the mode Start Avg. Demand for that mode, then the system mode may change but only after the system mode reselect time of the cur- rent mode exceeds the configured System Mode Reselect timer value. If these are all true, the system will begin the change to the opposite system mode. This is accomplished by sending in- formation to the air source that ends the current mode. The Linkage Coordinator then waits for the supply-air temperature (SAT) to fall within the ventilation temperature range of 65 to 75 F. Once that occurs, the opposite mode is started.
If the mode is dropped due to the reselection criteria above, the algorithm will not permit the original mode to be re-established unless there is sufficient average demand to start the new mode. This is true even if the old mode has once again become the more dominant requirement.
Linkage Linkage is the process used to communicate between the air source (HVAC equipment) and the zone termi- nals to form a coordinated HVAC system. Linkage allows the
air source to be controlled by the demands of the zones and allows the zones to properly respond to the changes in the air source operating modes. Linkage operation in air sources that have Carrier communicating network controls such as 48/50HG, 48/50A, and 48/50Z Product Integrated Controls (PIC) series rooftop units, PremierLink control or Universal Controller is supported. Existing air sources that do not have Carrier communicating network controls may be retrofitted with PremierLink or a Universal Controller depending on the equipment type. The designated Linkage Coordinator of each system will be the Linkage Coordinator between the air source and its associated zones. AIR SOURCES THAT SUPPORT LINKAGE Air sourc- es with PICs or PremierLink controls do not require any configuration settings to establish linkage with the Linkage Coordinator. This is done automatically when the air source bus and element address are configured in the Linkage Coordi- nators LINKAGE configuration table. The linkage informa- tion that is supplied to the air source by the Linkage Coordina- tor is as follows: Reference zone temperature Reference zone occupied biased heating and cooling
setpoints Average unoccupied heating and cooling set points of all
zones serviced by the air source Composite occupancy mode
The air source will control the equipment based on this information and in return will provide the Linkage Coordinator with the following data: Operating mode Cooling, Heating, Free Cool, Pres-
sure, Evacuation or Off Supply-air temperature
This synchronization of data optimizes the efficiency of the air source and the zones to operate at peak system performance at all times. This information can be seen in linkage mainte- nance tables of the Linkage Coordinator and the air source and is updated at approximately 1-minute intervals.
The reference zone temperature that is sent by the Linkage Coordinator will vary depending on the current demand. At times this will be a calculated value instead of an actual value to allow the air source to turn off heating or cooling after the current mode is satisfied or as it makes a transition to a mode. Table 24 defines when these values will be sent and how they are determined.
Table 24 Occupied Reference Zone Value
LEGEND
SYSTEM DESIRED MODE
OCCUPIED REFERENCE ZONE TEMPERATURE (OZT) SYSTEM MODE CONDITION
COOLING OZT = RZSPT ACD >= Avg Cool Start Demand and system is in Cooling OZT = RZHSP Heating mode has just satisfied (AHD < (Avg Heat Start Demand Heat Mode
Hysteresis)). Fan will continue to run if configured for continuous fan operation HEATING OZT = RZSPT AHD >= Avg Heat Start Demand and system is in Heating NONE OZT = RZCSP Cooling mode has just satisfied (ACD < (Avg Cool Start Demand Cool Mode
Hysteresis)). Fan will continue to run if configured for continuous fan operation OZT = (RZCSP RZHSP) + RZCSP RZSPT is less then RZCSP and greater than RZHSP. No demand for heat or cool. OZT = 0 1) System in unoccupied modes.
2) System is occupied, there is no demand for heat or cool and fan operation is configured for intermittent.
3) System is occupied and bypass pressure sensor calibration is in progress. C_FLUSH, H_FLUSH
OZT = (RZCSP RZHSP) + RZCSP System Mode Reselect is in effect and has timed out. The previous mode has ended and system is transitioning to the opposite mode.
ACD Average Cool Demand AHD Average Heat Demand RZSPT Reference Zone Space Temperature (actual) RZCSP Reference Zone Cool Set Point RZHSP Reference Zone Heat Set Point
53
NON-LINKAGE CONTROLLED AIR SOURCES In sys- tems with NonLinkage central air sources or central air sources that do not support Linkage, the zone coordination function of Linkage can still be provided by the Linkage func- tion contained within a Linkage Coordinator. In these cases, the zone configured as the Linkage Coordinator will determine the operational mode of the air source through its bypass controller pressure sensor. Once the air source is determined to be opera- tional, the Linkage Coordinator will attempt to determine the air source mode (heating or cooling) by measuring the supply air temperature from the air source by either a primary air temperature sensor or a bypass duct temperature sensor. A field-supplied primary air temperature sensor is required.
The modes that can be determined are Cooling, Heating, Free Cooling, or Off. If a sensor is not installed, or the sensor fails, then the Linkage Coordinator will default to the cooling mode. The mode and air source status is then transmitted down to the zones by the Linkage Coordinator. NOTE: If Linkage communication should fail between a linked air source and its Linkage Coordinator for more then 5 minutes, the Linkage Coordinator will generate a Linkage Failure alarm and will revert back a Non-Linkage air source control. Once Linkage communication has been re-established it will automatically begin controlling the air source.
System Modes The following modes are determined by the Linkage Coordinator through the Linkage data exchange when there is a linked, controlled air source or by using its bypass controller and primary air sensor if the there is a non-linkage controlled air source. Some modes will not be available if the there is a non-Linkage controlled air source. All the listed modes are available if there is a linked Carrier communicating network controlled air source depending on the available input options of the of the air source. Each mode description identifies if and how that mode is determined if there is a non-linkage controlled air source. OFF MODE The linked air source will determine this mode based on its fan status input under normal operating conditions. For a non-Linkage controlled air source, the Linkage Coordinator will determine if the air source is opera- tional (the fan is on) by determining if the bypass pressure can be measured. If no pressure can be measured then the Linkage Coordinator controller concludes that the air source is off and all zone dampers will go to 70% open. If pressure is measured, then the Linkage Coordinator concludes that the air source in on. If no bypass controller is present then the system will be considered to be always on.
HEAT MODE The linked air source is in heat mode due to a request for from Linkage Coordinator. For a non-Linkage controlled air source, when the fan is determined to be on, the Linkage Coordinator controller reads the primary air tempera- ture value. If the duct temperature is 5 F greater than the reference zone temperature and the reference zone is greater than 65 F, or if the reference zone is less than 65 F and the duct temperature is 10 F greater than the reference zone tempera- ture, then the mode is determined to be heating. COOL MODE The linked air source is in cool mode due to a request for from Linkage Coordinator. For a non-linkage controlled air source, when the fan is determined to be on, the Linkage Coordinator controller reads the primary air tempera- ture value. If the temperature is less than the reference zone temperature, as calculated by the Linkage Coordinator control- ler, minus 2 F, the mode is determined to be cooling. FREECOOL MODE The following conditions must be present in the linked air source for free cooling mode: the average zone temperature value is greater than the
average unoccupied zone cooling temperature set point the current time is between 3:00 AM and 7:00 AM the air source is providing cooling to the system
If the above conditions are true, then the mode is deter- mined to be Free Cooling. This mode is then communicated to all zone controllers associated (linked) with the Linkage Coordinator controller. For a non-Linkage controlled air source, this will be same as COOL mode if the criteria for COOL mode is met as described above. PRESSURIZATION MODE If the linked air source has its optional Pressurization input closed, it will transmit this mode to the Linkage Coordinator. If this mode is active then all zones will open the dampers to the cooling maximum damper position, series fan boxes will have their fans forced on and parallel fan boxes will have their fan forced off. This mode is not available for if there is a non-Linkage controlled air source. EVACUATION MODE If the linked air source has its op- tional Fire Shutdown or Evacuation input closed, it will transmit this mode to the Linkage Coordinator. If this mode is active then all zone dampers will be fully closed and series and parallel fan boxes will have their fans forced off. This mode is not available for if there is a non-Linkage controlled air source.
Air Terminal Modes Once the system mode is es- tablished the terminals will control their dampers to maintain the zone temperature in the space. Table 25 list a brief descrip- tion of their operation. For a detail description of the terminal modes and their operation, refer to the 3V Control System Application manual.
Table 25 Air Terminal Modes
*Systems with linkage controlled air source only.
AIR TERMINAL OPERATING MODE
AS DISPLAYED IN POINTS STATUS TABLE AIR TERMINAL ACTION
OFF OFF No active control of temperature or Cfm in the zone.
VENT VENT Temperature requirement of the zone is satisfied. Minimum cooling or ventilation position (which ever is greater) is maintained.
COOL COOL Zone Controller is attempting to cool the zone by using supply air.
DCV COOL or VENT Zone Controller is attempting to increase zone ventilation by overriding temperature control damper position requirements. System must be in cooling or ventilation mode.
HEAT HEAT Zone Controller is attempting to heat the zone by using supply air or local heating if configured for series or parallel fan terminal.
REHEAT REHEAT Zone Controller is attempting the heat the zone by locally re-heating the supply air (single duct terminal only).
PRESSURE* PRESSURE Zone Controller is participating in the pressurization by forcing damper to max cooling position and turning on fan if configured for series fan terminal.
EVACUATION* EVAC Zone Controller is participating in the evacuation by forcing damper to closed and turning off fan if configured for series or parallel fan terminal.
COMMISSIONING COMMISS Zone damper is in the process of calibrating its damper. ZONE BALANCING ZONE_BAL Zone damper position is being overridden by its Linkage Coordinator's system balancing mode.
54
The zone controller can be configured for one of three types of air terminal control - single duct, series fan or parallel fan. If configured for parallel fan, the fan will be energized whenever the there is a demand for heat the system mode is not Heating and when there is a demand for heat when the zone is unoccu- pied and the system mode is not Heating. If configured for series fan, the fan will be energized whenever the zone is occupied and when the there is a demand for heat when it is unoccupied. To prevent all series fan zones from starting at one time, the zone controller will run a start delay algorithm based on the zone controllers address to stagger the fan start time. Before starting the fan is started the zone damper will go to the fully closed position to prevent the fan from starting back- wards. The following formula is used to delay the fan start in second: Delay time in seconds = (((Whole Remainder of Element#/ 20)*60)+20) ZONE DAMPER TEMPERATURE CONTROL The damp- er will modulate to adjust the airflow to the space to maintain its current set point. The damper is controlled by a PID loop to provide precise control of the damper position. The damper will be modulated opened if the system mode and local mode are the same. As the zone temperature gets closer to the set point, the damper will modulate to the Minimum Damper Position. The amount the damper will be open at any given time depends on how far away the temperature is from the set point, how fast it takes to satisfy the mode, and the Minimum and Maximum Positions for current mode. Once the zone is satisfied the damper will go to its Minimum Damper Position for that mode. Cool/Heat Minimum and Maximum Positions are defined in the Damper service configuration table.
If the local zone temperature is different from the system mode then the damper will be at Minimum Position for the system mode. ZONE DAMPER REHEAT If the zone controller has optional reheat installed, it will use this heat to maintain the heating set point. There are 4 types of heat options available as listed below: Modulating hot water or steam (requires a supply air
temperature [SAT] sensor for ducted heat or a leaving water temperature sensor for baseboard heat)
Two-position hot water or steam (SAT required) 1 to 3 stages of electric heat (SAT required) Combination of staged baseboard and ducted heat (SAT
required) If the zone controller is configured for single duct terminal,
the system mode is cooling, and the zone local mode is heating the damper will go to the configured Reheat Minimum Position or the Cool Minimum Damper Position (as configured in the Damper service configuration table) whichever is greater, and reheat will be energized.
If the zone controller is configured for series or parallel fan terminal the zone controller will close the damper to the Cool Minimum Position before energizing the reheat. For parallel zone terminals the fan will be energized as the first stage of heat. The zone controller uses a PID algorithm to calculate a supply air or leaving water temperature, which the reheat will be controlled to, in order to satisfy the heat demand.
If the system mode is Heating, the zone controller will try to heat the zone with the central heat but may energize reheat to satisfy the demand if it is required. If the terminal type is con- figured for parallel fan the fan will remain off. If no reheat is desired in the zone while central heat is on or under any
other specific conditions, it can be disabled by forcing the Heat point in the Status Display table to Disable. Contact your local Carrier Controls representative if you need assistance with this application. ZONE DAMPER VENTILATION After the zone has sat- isfied and the system mode is Cooling or Free Cooling and the SAT is between 65 and 75 F, the damper will go to its Ventila- tion Position or the Cool Minimum Position, whichever is greater. If the SAT is less then 65 or greater then 75 or the system mode changes to Heating, the damper go to the current system mode Minimum Position. The Ventilation Damper Position is defined in the Damper service configuration table. DEMAND CONTROL VENTILATION (DCV) If the zone controller has a CO2 Demand Ventilation sensor it will be able to override the temperature controlled damper position if it is occupied, the system mode is Cooling or Free Cool, and the zone is does not have a demand for heat. When the IAQ sensor exceeds the configured Demand Vent set point it will use a PID algorithm to calculate a higher damper position to allow more airflow to the zone in order to dilute the CO2 levels. The Demand Ventilation algorithm has a higher priority then the temperature control algorithm under these conditions so the damper will be controlled to the greater of the two values. The DCV mode, when active, overrides the Cool Minimum and Ventilation Positions. As the CO2 levels decrease in the zone the damper will soon be returned to normal temperature control.
If the zone is configured for modulating ducted reheat and the zone temperature decreases to less than half way between the heat and cool set point then the reheat will be enabled to prevent the zone from going into the heat mode. If the zone is configured for any other type of reheat it will NOT be ener- gized. If the temperature continues to decrease below the heat set point, the DCV mode will be disabled and the zone will re- sume normal temperature control.
The zone ZNMAINT maintenance status table will display the calculated damper position and if the temperature or DCV is in control of the damper as well as other information such as occupancy status, heat and cool set points, reheat sub-master reference and whether local heating or cooling is in effect. LOADSHED The zone controller can respond to a redline or loadshed broadcast from an optional Loadshed module in- stalled on the Carrier communicating network. The purpose of this function is to monitor and conserve electrical power usage. If a redline command is broadcast the zone controller expand its heat and cool set points by the amount that is configured in Loadshed Offset Adjust decision in the OPTIONS service con- figuration table. The default is 2 F so this amount would be subtracted from the heat set point and added to the cool set point if is left unchanged. A configurable redline/loadshed de- lay timer (Maximum Loadshed Time decision in the OPTIONS service configuration) will also started to prevent the set points from being expanded indefinitely.
If a Loadshed command is broadcast then the set points will be expanded and the zone controller will drop 1 stage of reheat providing that the reheat option is enabled and there is more than one stage of heat. The set points will be returned to normal and additional staged heat will be allowed when the redline/ loadshed command is canceled by the Loadshed Module, the zone controllers internal redline/loadshed delay timer times out or the zone becomes unoccupied. Contact your local Carrier Controls representative for more information on this application.
55
Enter
Is ACD=AHD and ACD >=CSA _DMD and AHD>=HSA_DMD?
Scan zone controllers in system for cool and heat demand
Calculate ACD & AHD
Is OAT < CLO_SPT?
Is AHD >= HSA_DMD?
Is OAT >= HLO_SPT?
Exit
Start system mode reselect timer
System demand = Cooling System demand = Heating
Send Linkage data OZT = RZSPT
Is current mode
Cooling?
Is ACD < (CSA_DMD C_HYST)
Is current mode
Heating?
Is ACD < (HSA_DMD H_HYST)
Send Linkage data OZT = RZCSP
Is RZSPT < RZCSP?
Send Linkage data OZT = (RZCSP RZHSP) + RZCSP
Send Linkage data OZT = RZHSP
Is RZSPT > RZHSP?
Send Linkage data OZT = (RZCSP RZHSP) + RZCSP
Send Linkage data OZT = RZSPT
Send Linkage data OZT =RZSPT
YES
NO
YES
NO
YES
NO
YES
NO
Is ACD >= CSA_DMD?
Is largest heat zone demand > largest cool
zone demand?
Is OAT <= CLO_SPT?
Is OAT >= HLO_SPT?
Start system mode reselect timer
System demand = Cooling System demand = Heating
Send Linkage data OZT = RZSPT
YES
NO
YES YES
NO NO
NO
NO
NO YES
YES
YES YES
YES
NO
NO
YES
NO
YES
System demand = Cooling
System demand = Cooling
System demand = None
System demand = None
System demand = Heating
System demand = Heating
APPENDIX A SYSTEM OPERATION FLOW CHARTS
3V System Mode Selection
LEGEND
ACD Avg Cool Demand AHD Avg Heat Demand CLO_SPT OAT Cooling
Lockout Setpoint CSA_DMD Cool Start Avg.
Demand C_HYST Cool Demand
Hysteresis HLO_SPT OAT Heating
Lockout Setpoint HSA_DMD Heat Start Avg.
Demand H_HYST Heat Start
Hysteresis OAT Outside Air
Temperature OZT Occupied Zone
Temperature RZCSP Reference Zone
Cool Setpoint RZHSP Reference Zone
Heat Setpoint RZSPT Reference Zone
Space Temp
1104
56
Enter
Is system mode = OFF?
DMPPOS = 70% Fan off if configured for Fan
Box Terminal Type
Is system mode = EVAC?
Is system mode = PRES?
Is system mode = FREECOOL or COOL?
Is local mode = HEAT?
Zone configured for reheat?
Is local mode = COOL?Is local mode =
HEAT?
DMPPOS = 0% Fan off if configured for Series or Parallel Fan
Terminal Type
DMPPOS = Cool Max Damper Position
Fan on if configured for Series Fan Terminal Type
DMPPOS= Cool Min Damper
Position
DMPPOS= Cool Min Damper Position or
Reheat Damper Position (if configure for Single Duct Terminal Type) which ever is greater
YES
NOYES
YES
DMPPOS = Cool Min Damper
Position
NO
NO
Run PID loop to stage or modulate reheat to
control SAT= HSMR
DMPPOS= Cool Min Damper Position or Vent Poisition which ever is
greater
Is SAT between 65 and 75 ?
Run Temperature Control PID Logic
Is SPT valid?
Is SPT valid?
DMPPOS= Heat Min Damper
Position
Turn on fan if configured for Series Fan Terminal Type
YES
YES
YES
YES
YES
System mode =
HEAT
NO
NO
NO
NO
YES
Local mode = VENT
Turn on fan if configured for Parallel
Fan Terminal Type
NO
YES
DMPPOS = TC_DPOS
Exit
NO
NO
YES
NO
3V Zone Damper Operation
LEGEND DMPPOS Damper Position EVAC Evacuation HSMR Heat Submaster Reference PID Proportional/Integral/Derivative PRES Pressurization SAT Supply Air Temperature SPT Space Temperature TC_DPOS Temperature Control Damper Output VENT Ventilation
57
Enter
Zone Occupied?
Biased Occuped?
Zone in Heat mode?
Error = DCVSP - DCV
DCVD > MAXOUT?
Exit
YES
YES
YES
YES
NO
NO
NO
Integral Term = (Error x Integral Gain) + Previous Integral Term
Proportional Term = Error x Proportional Gain
DCVD = Proportional Term + Integral Term + Starting Value
DCVD = MAXOUT
DCVD = 0
Previous Integral Term = Integral Term
NO
3V Zone Controller DCV Damper Control Logic
LEGEND DCV Demand Control Ventilation Sensor DCVSP Demand Control Ventilation Setpoint DCVD Demand Control Ventilation Damper Output MAXOUT DCVD Configured Maximum Output
58
Local DMD = heat?
Local DMD = cool?
TC_DPOS = [System Mode] Min
Position
Exit
Error = HCMR - SPT
Error = CCMR - SPT
Current DMPPOS = TC_DPOS 6.25%?
Current DMPPOS < TC_DPOS - 6.25%?
Current DMPPOS > TC_DPOS + 6.25%?
Close Damper
Open Damper
Enter
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Integral Term = (Error x Integral Gain) + Previous Integral Term
Proportional Term = Error x Proportional Gain
Derivative Term = (Error - Previous Error) x Derivative Gain
TC _DPOS =Proportional Term + Integral Term + Derivative Term + Starting Value
Previous Error = Error Previous Integral Term = Integral Term
Limit suchthat: Minimum Output < < Maximum Output
TC_DPOS<[System Mode] Min Output or
TC_DPOS>[System Mode] Max Output
Is DCV active?
Is DCVD > [COOL ] Min Ouput?
[COOL] Min Output = DCVD
Is DCV active?
Is DCVD > [COOL] Min Ouput?
[COOL]Min Output = DCVD
Hold Damper
YES
NO
YES
NO
NO
YES
YES
NO
YES
NO
+_
TC_DPOS=0
TC_DPOS
3V Zone Controller Temperature Control Damper Logic
LEGEND CCMR Cooling Setpoint DCV Demand Control Ventilation DCVD DCV Damper Output DMD Zone Demand DMPPOS Damper Position HCMR Heat Setpoint SPT Space Temperature [System Mode] Current System Mode TC_DPOS Temperature Control Damper Output
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without noti
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