- Manuals
- Brands
- Carrier
- Controller
- 33ZCFANCOL
- Installation Start-Up and Configuration Instructions
Carrier 33ZCFANCOL Installation Instructions PDF
en
Summary of Content for Carrier 33ZCFANCOL 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. 533-356 Printed in U.S.A. Form 33ZC-2SI Pg 1 506 3-00 Replaces: NewBook 1 4
Tab 11a 13a
Installation, Start-Up and Configuration Instructions
Part Number 33ZCFANCOL
CONTENTS Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Fan Coil Controller Hardware. . . . . . . . . . . . . . . . . . . . . 2 Field-Supplied Hardware . . . . . . . . . . . . . . . . . . . . . . . . . 2 SPACE TEMPERATURE SENSOR SUPPLY AIR TEMPERATURE (SAT) SENSOR CHANGEOVER SENSOR LINKAGE THERMOSTAT RELATIVE HUMIDITY SENSOR INDOOR AIR QUALITY (CO2) SENSOR Mount Fan Coil Controller . . . . . . . . . . . . . . . . . . . . . . . . 2 LOCATION MOUNTING Connect the Power Transformer . . . . . . . . . . . . . . . . . . 4 Fan Coil Controller Inputs and Outputs . . . . . . . . . . 4 Install Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 SPACE TEMPERATURE SENSOR INSTALLATION SUPPLY AIR TEMPERATURE (SAT) SENSOR
INSTALLATION INDOOR AIR QUALITY SENSOR INSTALLATION HUMIDITY SENSOR (WALL-MOUNTED)
INSTALLATION Connect the Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Connect Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Connect the CCN Communication Bus . . . . . . . . . . 26 COMMUNICATION BUS WIRE SPECIFICATIONS CONNECTION TO THE COMMUNICATION BUS START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Perform System Check-Out . . . . . . . . . . . . . . . . . . . . . 27 Initial Operation and Test. . . . . . . . . . . . . . . . . . . . . . . . 27 Fan, Heat, and Cool Configuration and Test . . . . . 27 CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-44 Points Display Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Alarm Service Configuration Table . . . . . . . . . . . . . . 30 Controller Identification Screen . . . . . . . . . . . . . . . . . 31 Holiday Configuration Screen . . . . . . . . . . . . . . . . . . . 31 Occupancy Configuration Screen . . . . . . . . . . . . . . . 31 Runtime Configuration Screen . . . . . . . . . . . . . . . . . . 32 Set Point Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Service Configuration Selection. . . . . . . . . . . . . . . . . 34 Fan Coil Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Occupancy Maintenance Table . . . . . . . . . . . . . . . . . . 39 Fan Coil Maintenance Table . . . . . . . . . . . . . . . . . . . . . 40 Water System Manager Maintenance Screen . . . . 43
SAFETY CONSIDERATIONS
GENERAL The Fan Coil Controller is a field retrofit, low cost, CCN
(Carrier Comfort Network) control for fan coil units. The fan coil controller is a microprocessor-based direct digital control (DDC) controller for fan coil units. It can be retrofitted on direct drive fan units manufactured by Carrier or other manu- facturers to provide precise temperature control for applica- tions of 2,000 cfm or less.
The fan coil controller can function as either a stand-alone control or as part of the CCN. User interfaces include the CCN Service Tool, ComfortVIEW, and ComfortWORKS soft- ware. When used as part of the CCN, other devices such as the CCN Data Transfer, Linkage Thermostat, or Comfort Control- ler can read data from or write data to the fan coil controller.
SAFETY NOTE Air-handling equipment will provide safe and reliable
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 manu- facturers instructions to avoid injury to personnel or dam- age 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 fed- eral laws regarding disposal of equipment containing hazardous materials.
Damage to equipment may result. An individual field- supplied 24-VAC power transformer is required for each fan coil controller. The transformer must be less than 100 VA to meet UL Class 2.
Fan Coil Controller
2
INSTALLATION
General The fan coil 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 all heating or cooling applications, the fan coil controller must be connected to a field-installed and -supplied supply air temperature (SAT) sensor to monitor the temperature of the air delivered by the fan coil.
Carriers Network Service Tool can be connected to the sys- tem at the SPT sensor if CCN communication wiring is run to an RJ-11 jack at the SPT sensor. The Network Service Tool can be used to adjust set points, set operating parameters, and fully configure the fan coil controller or any device on the system. See Fig. 1.
Fan Coil Controller Hardware The fan coil con- troller consists of the following hardware: control module plastic enclosure two no. 8 x 1/2-in. sheet metal screws (for fan coil con-
troller mounting to fan coil) Figure 2 shows the fan coil controller physical details.
Field-Supplied Hardware Each fan coil controller requires the following field-supplied components to complete its installation: fan coil unit space temperature sensor (33ZCT55SPT, 33ZCT56SPT,
or 33ZCT57SPT) transformer 24 vac, 40 va (standard applications) changeover sensor (required for 2-pipe applications) contactors (as required for fan, electric heat, or DX cool-
ing) supply air temperature sensor (33ZCSENSAT) with two
no. 10 x 1/2-in. sheet metal screws (to secure SAT sensor to fan coil unit)
indoor air quality sensor (as required) relative humidity sensor (as required) valve and actuator for hot water heat or chilled water (as
required) linkage thermostat (as required) SPACE TEMPERATURE SENSOR Each fan coil con- troller requires a field-supplied Carrier space temperature sen- sor. 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 33ZCT57SPT, Space Temperature Sensor with Override
Button, Set Point Adjustment, and Manual Fan Speed control
SUPPLY AIR TEMPERATURE(SAT) SENSOR The fan coil controller must be connected to a field-supplied supply air temperature (SAT) sensor (part number 33ZCSENSAT) to monitor the temperature of the air delivered by the fan coil. CHANGEOVER SENSOR The 33ZCSENCHG change- over sensor is used by the fan coil controller in 2-pipe applica- tions to determine the temperature of the heating and cooling medium which is supplied to the fan coil by the building piping system. The fan coil controller can then determine if it is capa- ble of providing heating or cooling to the space based on sens- ing the pipe water temperature. This value may be broadcast to other fan coils. LINKAGE THERMOSTAT The linkage thermostat (33CSKITLST-01) is used to control multiple units from a sin- gle thermostat. The linkage thermostat provides thermostat functions for up to 8 units. Thermostat functions include space temperature sensing, remote set point adjustment, and occu- pancy information. The linkage thermostat can be used in place of any space temperature sensor. If fail-safe operation is re- quired, it is recommended to also install a 33ZCSENSAT in the return air duct of each unit, wired to the space temperature sen- sor input of the fan coil controller. RELATIVE HUMIDITY SENSOR The 33AMSENRHS000 relative humidity sensor is an indoor, wall-mounted sensor and is required for zone humidity control (dehumidification). INDOOR AIR QUALITY (CO2) SENSOR An indoor air quality sensor is required for IAQ monitoring. Three different CO2 sensors are available for zone CO2 level monitoring.
The 33ZCSENCO2 sensor is an indoor, wall mounted sen- sor with an LED (light-emitting diode) display.
The 33ZCT55CO2 sensor is an indoor, wall mounted sen- sor without display. The CO2 sensor also includes a space tem- perature sensor with override button.
The 33ZCT56CO2 sensor is an indoor, wall mounted sen- sor without display. The CO2 sensor also includes a space tem- perature sensor with override button and temperature offset.
Mount Fan Coil Controller LOCATION The fan coil controller should be located in- side one of the available service access panels of the fan coil unit. The fan coil controller may also be mounted on the exteri- or of the fan coil unit. Select a location which will be safe from water damage and allow sufficient access for service and wir- ing. For service access, there should be at least 6 in. of clear- ance between the front of the fan coil controller and adjacent surfaces. Refer to Fig. 3. MOUNTING Mount the fan coil controller to the desired location by holding the fan coil controller in place and screw- ing two no. 8, pan-head, Phillips, sheet metal screws provided through two of the holes available in the plastic base on the either side of the fan coil controller.
3
CCN PRIMARY BUS (BUS 0)
CC6400 OR CSAM EQUIPPED
NON-CARRIER AIR HANDLER
COMFORTID EQUIPPED
AIR TERMINAL (1 OF UP TO 128)
ADDRESSED SEQUENTIALLY
SECONDARY BUS
DATA COLLECTION
OPTION
BRIDGE (RECOMMENDED)
SYSTEM MONITORING SOFTWARE
CCN
FAN COIL CONTROLLER
TYPICAL FAN COIL UNIT
FAN COIL CONTROLLER
TYPICAL FAN COIL UNIT
FULLY CCN COMPATIBLE CARRIER
AIR HANDLER
LEGEND
Fig. 1 Typical Carrier Comfort Network System with Fan Coil Units
CCN Carrier Comfort Network CSAM Comfort System AirManager
4
Connect the Power Transformer An individual, field-supplied, 24 vac power transformer is required for each fan coil controller. Transformers must be UL Class 2 rated. Standard applications require a 24 VAC transformer, rated at 40 VA minimum. All transformer secondaries are required to be grounded. Use only stranded copper conductors for all wiring to the fan coil controller. Wiring connections must be made in accordance with NEC (National Electrical Code) and local codes. Ground one side of the transformer secondary at the transformer location. Connect the grounded side of the trans- former to J1-2. Connect the live side of the transformer second- ary to J1-1. Connect an 18-gage, green ground wire from ter- minal J1-3 to the metal chassis of the unit.
The power supply is 24 vac 10% at 40 va (50/60 Hz). For fan coil controllers, the power requirement sizing
allows for accessory water valves and for the fan contactor. Water valves are limited to 10 va on both two-position and modulating hot water. The fan contactor is limited to 3 va (holding) for each fan output. NOTE: If a water valve 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 single output is 20 va. NOTE: Do not run sensor or communication wiring in the same conduit with line-voltage wiring. NOTE: An accessory conduit box (part no. 33ZCCONBOX) is available for conduit wiring connections to the fan coil 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. 4-10). Be sure to observe polarity when connecting the transformer power. The grounded terminal must be connected to the transformer ground terminal as shown.
Fan Coil Controller Inputs and Outputs The fan coil controller inputs and outputs are shown in Fig. 11-13.
Fig. 2 Fan Coil Controller
J4
RH
GND
IAQ
+10V
SPEED
GND
CONDSW GND
+24V SPT
GND
SAT
T56
GND
CNGOVR
RMT/FS
J3 J1
S R
V C
24 V
A C +
G -
Part Number: 33ZCFANCOL
S/N:
Bus#:
Element#:
Unit#:
J5
V LV
/D X
1 C
O M
V LV
/D X
2 H
E A
T 1
24 V
A C
H E
A T
2
ZONE Controller
C US
1 6
3 1
+
G -
J2 A
C C
N LE N
J2 B
+
G -
1 1
1 3
3
2
15 16
FAN AC FAN ON
LOW MED HIGH
J6
1 5
LED1
LED2
24VAC OAD ENAJ7
1 2
3 IN.
ALLOW 12-IN. FOR SERVICE
FAN COIL UNIT
FAN COIL CONTROLLER
Fig. 3 Service Clearance for Fan Coil Zone Controller Mounting
1001
5
O A
D
24 V
A C
C H
G
M
S A
T
S P
T
co m
m un
ic at
io ns
C C
N
N ot
U se
d
co m
m un
ic at
io ns
C C
N
C O M
C L O P
2 4 v
J1
1 2 3
+ 24
V D
C
as r
eq ui
re d
C on
ne ct
to th
e ap
pr op
ria te
m ot
or s
pe ed
re tu
rn v
al ve
m od
ul at
in g
sp rin
g O
pt io
na l 2
4V A
C fo
r
fr om
a T
56 s
en so
r A
dd th
is w
ire fo
r S
et po
in t A
dj us
tm en
t
G N
D
M B
LU
L R
E D
H B
LK W
H T
va lv
e
24 V
A C
D X
2 V
al ve
E qu
ip m
en t G
ro un
d
Tr an
sf or
m er
G ro
un d
F an
R el
ay
F an
M ot
or
V ol
ta ge
Li ne
V ol
ta ge
Li ne
O N
FA N
H E
A T
2 H
E A
T 1
C O
M
C O
N D
S W
R M
T /F
S
C N
G O
V R
T 56
S A
T
S P
T
IA Q
S P
E E
D
+ 10
V
G N
D G
N D
G N
D
G N
D G
N D
R H
D am
pe r
A ir
F re
sh
H IG
H
M E
D
LO W
FA N
A C
BWR
B -WR +
24 V
A C
D X
1 V
al ve
va lv
es 2
po si
tio n
te rm
in al
o n
to c
lo se
E lim
in at
e w
ire
F ig
. 4
F an
C o
il C
o n
tr o
lle r
W ir
in g
T
w o
-P ip
e, S
in g
le S
p ee
d F
an A
p p
lic at
io n
s
1001
6
+ 24
V D
C
O A
D
24 V
A C
E qu
ip m
en t G
ro un
d
va lv
es 2
po si
tio n
te rm
in al
o n
to c
lo se
E lim
in at
e w
ire
re tu
rn v
al ve
m od
ul at
in g
sp rin
g O
pt io
na l 2
4V A
C fo
r
H IG
H
LO W
M E
D
se ns
or sp
ee d
co nt
ro l f
ro m
a T
57 A
dd th
es e
w ire
s fo
r m
an ua
l
T 56
o r
T 57
s en
so r
fr om
a S
et po
in t a
dj us
tm en
t A
dd th
is w
ire fo
r
C H
G
S P
T
B LK
M B
LU L
R E
D
H B
LK W
H T
V al
ve
24 V
A C
D X
2 V
al ve
Tr an
sf or
m er
G ro
un d
F an
R el
ay s
F an
M ot
or
V ol
ta ge
Li neV ol
ta ge
Li ne
M
S A
T
O N
FA N
H E
A T
2 H
E A
T 1
C O
M
C O
N D
S W
R M
T /F
S
C N
G O
V R
T 56S A
TS P
T
IA Q
S P
E E
D
+ 10
V
G N
D G
N D
G N
D
G N
D G
N D
R H
D am
pe r
A ir
F re
sh
H IG
H
M E
D
LO W
FA N
A C
BWR
-BG N
D W+R
24 V
A C
D X
1 V
al ve
co m
m un
ic at
io ns
C C
N
N ot
U se
d
co m
m un
ic at
io ns
C C
N
C O M
C L O P
24 V
J1
1 2 3
F ig
. 5
F an
C o
il C
o n
tr o
lle r
W ir
in g
T
w o
-P ip
e, T
h re
e- S
p ee
d F
an w
it h
O p
ti o
n al
M an
u al
S p
ee d
C o
n tr
o l A
p p
lic at
io n
s
1001
7
+ 24
V D
C
as r
eq ui
re d
C on
ne ct
to th
e ap
pr op
ria te
m ot
or s
pe ed
O A
D
24 V
A C
E qu
ip m
en t G
ro un
d
va lv
es 2
po si
tio n
te rm
in al
o n
to c
lo se
E lim
in at
e w
ire
va lv
es S
pr in
g re
tu rn
M od
ul at
in g
V A
C fo
r O
pt io
na l 2
4
T 56
o r
T 57
s en
so r
fr om
a S
et po
in t a
dj us
tm en
t A
dd th
is w
ire fo
r
M B
LU
L R
E D
H B
LK W
H T
C W
V
24 V
A C
D X
2 V
al ve
Tr an
sf or
m er
G ro
un d
F an
R el
ay
H W
V
F an
M ot
or
V ol
ta ge
Li ne
V ol
ta ge
Li ne
M
S A
T
S P
T
O N
FA N
H E
A T
2 H
E A
T 1
C O
M
C O
N D
S W
R M
T /F
S
C N
G O
V R
T 56S A
T
S P
T
IA Q
S P
E E
D
+ 10
V
G N
D G
N D
G N
D
G N
D G
N D
R H
D am
pe r
A ir
F re
sh
H IG
H
M E
D
LO W
FA N
A C
BWR
-BG N
D W+R
24 V
A C
D X
1 V
al ve
co m
m un
ic at
io ns
C C
N
N ot
U se
d
co m
m un
ic at
io ns
C C
N
C O M
C O M C L
C L O P
O P
2 4 V
2 4 V
J1
1 2 3
F ig
. 6
F an
C o
il C
o n
tr o
lle r
W ir
in g
F
o u
r- P
ip e,
S in
g le
S p
ee d
A p
p lic
at io
n s
1001
8
+ 24
V D
C
O A
D
24 V
A C
E qu
ip m
en t G
ro un
d
va lv
es 2
po si
tio n
te rm
in al
o n
to c
lo se
E lim
in at
e w
ire
va lv
es S
pr in
g re
tu rn
m od
ul at
in g
V A
C fo
r O
pt io
na l 2
4
H IG
H M
E D
LO W
se ns
or sp
ee d
co nt
ro l f
ro m
a T
57 A
dd th
es e
w ire
s fo
r m
an ua
l
T 56
o r
T 57
s en
so r
fr om
a S
et po
in t a
dj us
tm en
t A
dd th
is w
ire fo
r
S P
T
B LK
M B
LU L
R E
D
H B
LK W
H T
C W
V
24 V
A C
D X
2 V
al ve
Tr an
sf or
m er
G ro
un d
F an
R el
ay s
H W
V
F an
M ot
or
V ol
ta ge
Li ne
V ol
ta ge
Li ne
M
S A
T
O N
FA N
H E
A T
2 H
E A
T 1
C O
M
C O
N D
S W
R M
T /F
S
C N
G O
V R
T 56
S A
T
S P
T
IA Q
S P
E E
D
+ 10
V
G N
D G
N D
G N
D
G N
D G
N D
R H
D am
pe r
A ir
F re
sh
H IG
H
M E
D
LO W
FA N
A C
BWR
-BG N
D W+R
24 V
A C
D X
1 V
al ve
co m
m un
ic at
io ns
C C
N
N ot
U se
d
co m
m un
ic at
io ns
C C
N
C O M
C O M
C L C L
O P O P
2 4 V
2 4 V
J1
1 2 3
F ig
. 7
F an
C o
il C
o n
tr o
lle r
W ir
in g
F
o u
r- P
ip e,
T h
re e-
S p
ee d
F an
w it
h O
p ti
o n
al M
an u
al S
p ee
d C
o n
tr o
l A p
p lic
at io
n s
1001
9
O A
D
24 V
A C
S P
T
M
S A
T
R M
T /F
S
co m
m un
ic at
io ns
C C
N
N ot
U se
d
co m
m un
ic at
io ns
C C
N
2 31
J1
+ 24
V D
C
E qu
ip m
en t G
ro un
d
H IG
H M
E D
LO W
se ns
or sp
ee d
co nt
ro l f
ro m
a T
57 A
dd th
es e
w ire
s fo
r m
an ua
l
T 56
o r
T 57
s en
so r
fr om
a S
et po
in t a
dj us
tm en
t A
dd th
is w
ire fo
r
H E
A T
2 H
E A
T 1
D X
2 D
X 1
C oo
l R el
ay s
H ea
t R el
ay s
B LK
M B
LU L
R E
D
H B
LK W
H T
24 V
A C
D X
2 V
al ve
Tr an
sf or
m er
G ro
un d
F an
R el
ay s
F an
M ot
or
V ol
ta ge
Li ne
V ol
ta ge
Li ne
O N
FA N
H E
A T
2 H
E A
T 1
C O
M
C O
N D
S W
C N
G O
V R
T 56S
A T
S P
T
IA Q
S P
E E
D
+ 10
V
G N
D G
N D
G N
D
G N
D G
N D
R H
D am
pe r
A ir
F re
sh
H IG
H
M E
D
LO W
FA N
A C
BWR
-B
G N
D W+R
24 V
A C
D X
1 V
al ve
F ig
. 8
F an
C o
il C
o n
tr o
lle r
W ir
in g
T
w o
-S ta
g e
D X
C o
o lin
g , T
w o
-S ta
g e
E le
ct ri
c H
ea t,
T
h re
e- S
p ee
d F
an w
it h
O p
ti o
n al
M an
u al
S p
ee d
C o
n tr
o l A
p p
lic at
io n
s
1001
10
+ 24
V D
C
O A
D
24 V
A C
E qu
ip m
en t G
ro un
d
H IG
H M
E D
LO W
C W
V
se ns
or sp
ee d
co nt
ro l f
ro m
a T
57 A
dd th
es e
w ire
s fo
r m
an ua
l
T 56
o r
T 57
s en
so r
fr om
a S
et po
in t a
dj us
tm en
t A
dd th
is w
ire fo
r
H E
A T
2 H
E A
T 1H
ea t R
el ay
s
S P
T
B LK
M B
LU L
R E
D
H B
LK W
H T
24 V
A C
D X
2 V
al ve
Tr an
sf or
m er
G ro
un d
F an
R el
ay s
F an
M ot
or
V ol
ta ge
Li neV ol
ta ge
Li ne
M
S A
T
O N
FA N
H E
A T
2 H
E A
T 1
C O
M
C O
N D
S W
R M
T /F
S
C N
G O
V R
T 56
S A
T
S P
T
IA Q
S P
E E
D
+ 10
V
G N
D G
N D
G N
D
G N
D G
N D
R H
D am
pe r
A ir
F re
sh
H IG
H
M E
D
LO W
FA N
A C
BWR
-B
G N
D W+R
24 V
A C
D X
1 V
al ve
co m
m un
ic at
io ns
C C
N
N ot
U se
d
co m
m un
ic at
io ns
C C
N
C O M
C L O P
2 4 V
O pt
io na
l 24
V A
C fo
r m
od ul
at in
g S
pr in
g re
tu rn
va lv
es
J1
1 2 3
F ig
. 9
F an
C o
il C
o n
tr o
lle r
W ir
in g
T
w o
-S ta
g e
D X
C o
o lin
g , M
o d
u la
ti n
g H
ea t,
T
h re
e- S
p ee
d F
an w
it h
O p
ti o
n al
M an
u al
S p
ee d
C o
n tr
o l A
p p
lic at
io n
s
1001
11
+ 24
V D
C
O A
D
24 V
A C
E qu
ip m
en t G
ro un
d
H IG
H M
E D
LO W
C W
V
se ns
or sp
ee d
co nt
ro l f
ro m
a T
57 A
dd th
es e
w ire
s fo
r m
an ua
l
T 56
o r
T 57
s en
so r
fr om
a S
et po
in t a
dj us
tm en
t A
dd th
is w
ire fo
r
H E
A T
2 H
E A
T 1H
ea t R
el ay
s
S P
T
B LK
M B
LU L
R E
D
H B
LK W
H T
24 V
A C
D X
2 V
al ve
Tr an
sf or
m er
G ro
un d
F an
R el
ay s
F an
M ot
or
V ol
ta ge
Li neV ol
ta ge
Li ne
M
S A
T
O N
FA N
H E
A T
2 H
E A
T 1
C O
M
C O
N D
S W
R M
T /F
S
C N
G O
V R
T 56
S A
T
S P
T
IA Q
S P
E E
D
+ 10
V
G N
D G
N D
G N
D
G N
D G
N D
R H
D am
pe r
A ir
F re
sh
H IG
H
M E
D
LO W
FA N
A C
BWR
-B
G N
D W+R
24 V
A C
D X
1 V
al ve
co m
m un
ic at
io ns
C C
N
N ot
U se
d
co m
m un
ic at
io ns
C C
N
C O M
C L O P
2 4 V
O pt
io na
l 24
V A
C fo
r m
od ul
at in
g S
pr in
g re
tu rn
va lv
es
J1
1 2 3
F ig
. 1 0
F
an C
o il
C o
n tr
o lle
r W
ir in
g
M o
d u
la ti
n g
C o
o lin
g , T
w o
-S ta
g e
E le
ct ri
c H
ea t,
T
h re
e- S
p ee
d F
an w
it h
O p
ti o
n al
M an
u al
S p
ee d
C o
n tr
o l A
p p
lic at
io n
s
1001
12
2 4 6 8 10 12 14 16
1 3 5 7 9 11 13 15
+24VDC SUPPLY
SPT
GROUND
SAT
FAN STATUS OR REMOTE S/S
CHANGEOVER SENSOR
GROUND
T56 SETPOINT OFFSET
GROUND
COND PUMP
GROUND
MANUAL SPEED +10 VDC
IAQ
GROUND
RH
J4
1 2 3 4 5
J6 J7
1 2
24VAC
OAD
FAN (24VAC)
FAN ON
LO SPEED
MED SPEED
HIGH SPEED
LEGEND
*Use shielded wire.
NOTES: 1. Terminals 1 and 3 provide switched 24 VAC
output power to the load. 2. Terminal 5 connects to field-supplied 24 VAC. 3. The 24 v connection (J4-16) is required for
RH sensor only.
DI Direct Input FS Fan Status IAQ Indoor Air Quality RH Relative Humidity SAT Supply-Air Temperature SPT Space Temperature S/S Start/Stop
Fig. 11 Fan Coil Controller Inputs
Fig. 12 Fan Coil Controller Daughter Board Outputs
Daughter Board Outputs (J6, J7)
*For single-speed fan units, connect fan start/stop to control fan contactor. NOTE: J6-1 must be jumpered to 24 VAC +. (J1-1).
CHANNEL TERMINATIONS(+,) DESCRIPTION CONTROL DEVICE FAN AC J6-1, J1-1 Fan Input Power 24V, 5A FAN ON J6-2, J1-2 Fan Start/Stop* 24V, 5A
LOW J6-3, J1-2 Low Speed 24V, 5A MED J6-4, J1-2 Med Speed 24V, 5A
HI J6-5, J1-2 High Speed 24V, 5A OAD J7-1, J7-2 Outdoor Air Damper 24 VAC 1A
Inputs (J4)
CHANNEL J4 PINS (+,) DESCRIPTION CONTROL DEVICE SPT 14, 12 Space Temperature 10K Thermistor SAT 10, 12 Supply Air Temperature 10K Thermistor
SP_OFFSET (T56/T57) 8, 12 Set Point Offset Adjust 100K Potentiometer CNGOVR 4, 6 Changeover Sensor 10K Thermistor
RH 16 (24 VDC), 15 (+), 13 () RH Sensor 2-10 VDC
SPEED 9*, 7 (+), 5 () Manual Speed Position 0-10 VDC CONDSW 3, 9* Condensate Pump Sensor 0-10 V (DI)
IAQ 11 (+), 13 () Indoor Air Quality Sensor 0-10 VDC
FS OR REMOTE S/S 2 (24 VDC), J1 Pin 1 (Gnd)
Fan Status or Remote Start/Stop 24 VAC (DI)
1001
13
Install Sensors SPACE TEMPERATURE SENSOR INSTALLATION A space temperature sensor must be installed for each fan coil controller. There are four types of SPT sensors available from Carrier: the 33ZCT55SPT space temperature sensor with timed override button, the 33ZCT56SPT space temperature sensor with timed override button and set point adjustment, the 33ZCT57SPT space temperature sensor with timed override button, set point adjustment, and manual fan speed control and the 33ZCT58SPT space temperature sensor with time override, set point adjustment, fan speed control, and LCD display. See Fig. 14 and 15.
The space temperature sensor is used to measure the build- ing 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 direct- ly 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 base- board heaters, radiators, or directly above wall mounted light- ing 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.
NOTE: Sensor may also be mounted directly on the wall using 2 plastic anchors and 2 sheet metal screws (field-supplied).
6. Use 20 gage wire to connect the sensor to the control- ler. 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 CCN 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 CCN network service jack requires a separate, shielded CCN communication cable. Always use sepa- rate cables for CCN communication and sensor wir- ing. (Refer to Fig. 16-18 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 counterclockwise until the cover is secured to the mounting plate and locked in position.
8. For more sensor information, see Table 1 for ther- mistor resistance vs temperature values.
NOTE: Clean sensor with damp cloth only. Do not use solvents. Wiring the Space Temperature Sensor To wire the sensor, perform the following (see Fig. 16-18):
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 conduc- tor. 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 ter- minal block of the sensor.
VALVE/DX1 (OPEN)
GROUND
VALVE/DX2 (CLOSE)
HEAT CLOSE/ STAGE 2
COMMON (24VAC)
HEAT OPEN/ STAGE 1
1 2 3 4 5 6
J5
Baseboard Outputs (J5)
NOTES: 1. (A) Terminals 1 and 3 provide switched 24 VAC output power to the
load. 2. (B) J5-5 must be jumpered to 24 VAC + (J1-1).
CHANNEL J5 Pins (+,) DESCRIPTION CONTROL DEVICE Valve DX1 (A) 1, 2 Open 24 VAC, 1A Valve DX2 (A) 3, 2 Close 24 VAC, 1A HEAT_ST1 (B) 5, 4 Heat Open, 1st Stage 24 VAC, 1A HEAT_ST2 (B) 5, 6 Heat Close, 2nd Stage 24 VAC, 1A
Fig. 13 Fan Coil Controller Baseboard Outputs
1001
14
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 (COM on 33ZCT57SPT).
c. On 33ZCT56SPT and 33ZCT57SPT thermostats, connect the remaining wire (WHITE/CLR) to the T56 terminal on the controller. Connect the other end of the wire to the SET terminal on the sensor.
d. In the control box, install a no. 10 ring type crimp lug on the shield drain wire. Install this lug under the mounting screw of the fan coil controller.
e. On 33ZCT56SPT thermostats install a jumper between the two center terminals (right SEN and left SET). See Fig. 17.
f. On 33ZCT57SPT thermostats, a separate 3-conductor, shielded cable is used to connect the fan speed wiring. Connect the SPD terminal on the thermostat to the SPEED terminal on the fan coil controller. Use the white/clr wire. Connect the COM terminal on the thermostat to the GND ter- minal on the fan coil controller. Use the black wire. Connect the 10V terminal on the thermostat to the +10V terminal on the fan coil controller. Use the red wire. In the control box, install a no. 10 ring type crimp lug on the fan speed wiring shield drain wire. Install this lug under the mounting screw of the fan coil controller.
Wiring the CCN Network Communication Service Jack See Fig. 16-18. To wire the service jack, perform the following:
1. Strip back the jacket from the CCN 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 CCN connection, refer to the Connect the CCN Communication Bus section on page 26, for communica- tion bus wiring and cable selection. The cable selected must be identical to the CCN communication bus wire used for the en- tire network.
The other end of the communication bus cable must be con- nected to the remainder of the CCN communication bus. If the cable is installed as a T-tap into the bus, the cable length cannot exceed 50 ft. No more than 10 T-taps are allowed per bus. Wire the CCN service jack of the sensor in a daisy chain arrange- ment with other equipment. Refer to the Connect to the CCN Communication Bus section, page 26, for more details. See Fig. 19.
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
15
Table 1 Thermistor Resistance vs Temperature Values for Space Temperature Sensor, Return-Air Temperature Sensor, and Supply-Air Temperature Sensor
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
2 3 4 5 61
SW1
SEN
BLK (GND) RED (SPT)
RED(+) WHT(GND)
BLK(-) CCN COM
SENSOR WIRING
2 3 4 5 61
SW1
SEN SET
Cool Warm
WHT (T56)
BLK (GND) RED (SPT)
RED(+) WHT(GND)
BLK(-) CCN COM
SENSOR WIRING
JUMPER TERMINALS AS SHOWN
Fig. 16 Space Temperature Sensor Wiring (33ZCT55SPT)
Fig. 17 Space Temperature Sensor Wiring (33ZCT56SPT)
16
Wiring the Space Temperature Sensor (33ZCT58SPT) The T58 space temperature sensor is wired differently than other conventional sensors. The T58 sends all its sensor information through the CCN bus to the zone controller that it is associated with. The SPT sensor wiring connections are not used. The T58 sensor does not need to be directly wired to the zone controller.
The T58 sensor may be powered by a separate 24-VAC pow- er supply or may be connected to the J1 24 VAC power termi- nals on the zone controller. Be sure that the polarity of the power supply connections are consistent. For multiple devices wired to the same power supply, all positive (+) and negative () termi- nals should be wired in the same polarity.
Wire the T58 sensor to the CCN. Connect the CCN + termi- nal to the RED signal wire (CCN+). Connect the CCN termi- nal to the BLACK signal wire (CCN). Connect the GND terminal to the WHITE/CLEAR signal wire (Ground). Refer to the T58 sensor Installation Instructions for more information on installing and wiring the sensor.
SUPPLY AIR TEMPERATURE(SAT) SENSOR INSTAL- LATION On fan coil units with heating or cooling, the SAT sensor is required. The SAT must be installed in the fan coil air outlet. The part number is 33ZCSENSAT.
The SAT sensor probe is 6 inches in length. The probe tip must not touch the fan coil. See Fig. 20.
For fan coil installations utilizing a supply-air grille the sup- ply air temperature sensor should be fastened to the supply-air grille in a location which will provide the best sensing of the supply-air temperature during heating and cooling.
For fan coils using a ducted supply, the supply air tempera- ture sensor should be located in the supply duct downstream of the discharge of the fan coil to allow good mixing of the supply airstream.
See Fig. 21 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 SAT sensor to the fan coil controller:
1. Locate the opening in the control box. Pass the sensor probe through the hole.
2. Drill or punch a 1/2-in. hole in the fan coil unit. See Fig. 22.
3. Use two field-supplied, self-drilling screws to secure the sensor probe to the fan coil unit.
4. Connect the sensor leads to the fan coil controllers wiring harness terminal board at the terminals labeled SAT (RED) and GND (BLK).
IMPORTANT: The T58 sensor must be configured with the bus address and device type of the zone controller before it will broadcast temperature to the zone control- ler. Refer to the T58 sensor Installation Instructions for more information on configuring the sensor.
Disconnect electrical power before wiring the fan coil con- troller. Electrical shock, personal injury, or damage to the fan coil controller can result.
3-CONDUCTOR SHIELDED CABLE 3-CONDUCTOR
SHIELDED CABLE
WHITE (SPEED)
Fig. 18 Fan Coil Thermostat Wiring (33ZCT57SPT)
LEGEND
NOTE: Do not connect white wire to SET terminal if set point adjustment is not needed.
CCN Carrier Comfort Network SW1 Switch Set Point Set Point Adjust
1001
17
Fig. 19 Communication Bus Wiring to Fan Coil Zone Controller
WarmCool WarmCool
2 COND TWISTED CABLE OR 3 COND CABLE (TEMP SENSOR WIRING) (TYP)
CCN COMM BUS
SPACE TEMPERATURE
SENSOR
3 COND COMM CABLE (TYP)
WarmCool WarmCool
2 COND TWISTED CABLE OR 3 COND CABLE (TEMP SENSOR WIRING) (TYP)
SPACE TEMPERATURE
SENSOR
DISTANCE GREATER THAN 50 FT.CCN COMM BUS
TYPICAL FAN COIL UNIT
FAN COIL ZONE CONTROLLER
50 FT. MAXIMUM
Wiring when distance between fan coil controller and space temperature sensor is 50 feet or less
Wiring when distance between fan coil controller and space temperature sensor is greater than 50 feet
18
.39
.08
FOAM GASKET
.40'' O.D.
.250 .01 Dia
5.5 .5
PLENUM RATED CABLE 114'' 6
3.00
3.90
.175 DIA x .600
APROX 2 FT
SUPPLY AIR SENSOR
SUPPLY DUCT
TYPICAL FAN COIL UNIT
3.00
1.50
0.50 CLEARANCE HOLE
ENGAGEMENT HOLE FOR #10 SHEET METAL SCREW (2)
Fig. 20 Supply Air Temperature Sensor (Part Number 33ZCSENSAT)
Fig. 21 Supply Air Temperature Sensor Mounting Location
Fig. 22 Supply Air Temperature Sensor Mounting
19
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. Secure the probe to the fan coil unit with two field- supplied self-drilling screws.
2. If you are extending cable length beyond 8 ft, use ple- num rated, 20 AWG, twisted pair wire.
3. Connect the sensor leads to the fan coil controllers wiring harness terminal board at the terminals labeled SAT (RED) and GND (BLK).
4. 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 monitor IAQ levels. Three types of sensors are provided. The wall sensor can be used to monitor the conditioned air space. Sensors use infrared technology to measure the levels of CO2 present in the air. The wall sensor is available with or without an LCD readout to dis- play the CO2 level in ppm. See Fig. 23.
Sensor accessory descriptions and part numbers are shown in Table 2. To mount the sensor, refer to the installation instruc- tions shipped with the accessory kit.
Table 2 CO2 Sensor Accessories
The CO2 sensors listed in Table 2 are all factory set for a range of 0 to 2000 ppm and a linear voltage output of 0 to 10 vdc. Refer to the instructions supplied with the CO2 sensor for electrical requirements and terminal locations.
To accurately monitor the quality of the air in the condi- tioned air space, locate the sensor near a return air grille (if present) 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 IAQ 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. Indoor Air Quality Sensor Wiring To wire the sensors after they are mounted in the conditioned air space or outdoor location, see Fig. 24 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 (0-10 VDC) and ground (SIG COM) ter- minals on the sensor. Connect the 1-10 VDC terminal to termi- nal IAQ and connect the SIG COM 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. 25.
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 CCN 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. 26 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.
2. Connect the RED wire to the sensor screw terminal marked (+).
3. Install one lead from the resistor (supplied with the sensor) and the WHITE wire, into the sensor screw ter- minal 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 field-supplied closed end type crimp connector or wire nut.
CO2 SENSOR ACCESSORY
PART NUMBERS DESCRIPTION
33ZCSENCO2 Wall Mount Sensor (with display)
33ZCT55CO2 Wall Mount Sensor with 33ZCT55SPT space temperature sensor (no display)
33ZCT56CO2
Wall Mount Sensor with 33ZCT56SPT space temperature sensor and set point adjustment (no display)
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 centimeters.
Fig. 23 Indoor Air Quality (CO2) Sensor (33ZCSENCO2)
1001
20
+24V DC
OAD
24VAC
Equipment Ground
24VAC DX2 Valve
Voltage Line
ON FAN
HEAT2HEAT1COM
CONDSW RMT/FS
CNGOVR
T56
SAT
SPT
IAQ
SPEED
+10V
GND GND
GND
GND GND
RH
Damper Air
Fresh
HIGH
MED
LOW
FAN AC
B
W
R
- B
GND W
+ R
24 VAC DX1 Valve
communications CCN
Not Used
communications CCN
LINE VOLTAGE24 VAC
SEPARATE POWER SUPPLY
REQUIRED
J1
1
2
3
21 87
Fig. 24 IAQ Sensor Wiring
1001
21
5. Using electrical tape, insulate any exposed resistor lead to prevent shorting.
6. At the control box, remove the jacket from the cable. 7. Strip 1/4-in. of insulation from each conductor. 8. Connect the RED wire to terminal 24VDC on the con-
trol board. NOTE: The 24VDC terminal is used for RH sensor wiring only.
9. Connect the BLACK wire to terminal GND on the control board.
10. Connect the WHITE/CLEAR wire to terminal RH on the control board.
11. Connect shield to earth ground (if shielded wire is used).
Connect the Outputs Wire the fan coil controllers outputs (fan, staged heat, valves) as shown in the applicable wiring diagrams in Fig. 4-10.
Connect Accessories Refer to accessory installa- tion instructions for installation procedures. Fan coil controller wiring is shown for the following accessories: Linkage Thermostat (Fig. 27) Condensate Pump Switch (Fig. 28) Fresh Air Damper (Fig. 29) Fan Status or Remote Occupancy (Fig. 30) Changeover Thermostat (Fig. 31)
Fig. 25 Wall Mounted Relative Humidity Sensor (P/N 33AMSENRHS000)
+24V DC
OAD
24VAC
Equipment Ground
HUMIDITY SENSOR
BLACK
WHITE
RED
(If Used) Shield
-
+
499
24VAC DX2 Valve
Voltage Line
ON FAN
HEAT2HEAT1COM
CONDSW RMT/FS
CNGOVR
T56
SAT
SPT
IAQ
SPEED
+10V
GND GND
GND
GND GND
RH
Damper Air
Fresh
HIGH
MED
LOW
FAN AC
B
W
R
- B
GND W
+ R
24 VAC DX1 Valve
communications CCN
Not Used
communications CCN
J1
1
2
3
Fig. 26 Humidity Sensor Wiring
1001
22
C O
O L
T Y
P IC
A L
FA N
C O
IL U
N IT
3- C
O N
D U
C T
O R
W IR
E W
IT H
S H
IE LD
C C
N C
O M
M U
N IC
A T
IO N
B U
S
F C
C
C C
N 1
2 3
(- )
B LA
C K
(+ )
R E
D
G R
E E
N /
W H
IT E
(G N
D )
(- )
B LA
C K
(+ )
R E
D
G R
E E
N /
W H
IT E
(G N
D )
(- )
B LA
C K
(+ )
R E
D
G R
E E
N /
W H
IT E
(G N
D )
(- )
B LA
C K
(+ )
R E
D
G R
E E
N /
W H
IT E
(G N
D )
S H
IE LD
W IR
E N
U T
S H
IE LD
C O
M M
U N
IC A
T IO
N B
U S
W H
T R
E D
M A
X IM
U M
W IR
E L
E N
G T
H O
F 1
00 F
T.
LI N
K A
G E
T H
E R
M O
S TA
T W
IR IN
G C
O N
N E
C T
IO N
B LO
C K
P O
W E
R S
U P
P LY
B O
A R
DW -
R +
W H
T R
E D
A C
(+ )
G N
D 24
V A
C T
R A
N S
F O
R M
E R
(S E
P A
R A
T E
IS O
LA T
E D
)
F
ig . 2
7
W ir
in g
C o
n n
ec ti
o n
s (L
in ka
g e
T h
er m
o st
at )LE
G E
N D
C C
N
C ar
rie r
C om
fo rt
N et
w or
k F
C C
Fa
n C
oi l C
on tr
ol le
r
303
23
Use two conductor shielded cable
OAD
24VAC
Equipment Ground
24VAC DX2 Valve
Voltage Line
ON FAN
HEAT2HEAT1 COM
CONDSW RMT/FS
CNGOVR
T56
SAT
SPT
+24V DC
IAQ
SPEED
+10V
GND GND
GND
GND GND
RH
Damper Air
Fresh
HIGH
MED
LOW
FAN AC
B
W
R
- B
GND W
+ R
24 VAC DX1 Valve
communications CCN
Not Used
communications CCN
10 uf, 25VDC +
Fig. 28 Condensate Pump Switch Wiring
NOTE: To ensure that the switch operates reliably in a low voltage circuit, install a field-supplied 10 f, 25 VDC capacitor across the switch contacts. Be sure to observe polarity.
1001
24
OAD
24VAC
communications CCN
Not Used
communications CCN
+24V DC
Equipment Ground
24VAC DX2 Valve
Voltage Line
ON FAN
HEAT2HEAT1COM
CONDSW RMT/FS
CNGOVR
T56
SAT
SPT
IAQ
SPEED
+10V
GND GND
GND
GND GND
RH
Damper Air
Fresh
HIGH
MED
LOW
FAN AC
B
W
R
- B
GND W
+ R
24 VAC DX1 Valve
J1
1
2
3
Fig. 29 Fresh Air Damper Wiring
1001
25
+24V DC
OAD
24VAC
Equipment Ground
24VAC DX2 Valve
Voltage Line
ON FAN
HEAT2HEAT1COM
CONDSW RMT/FS
CNGOVR
T56
SAT
SPT
IAQ
SPEED
+10V
GND GND
GND
GND GND
RH
Damper Air
Fresh
HIGH
MED
LOW
FAN AC
B
W
R
- B
GND W
+ R
24 VAC DX1 Valve
communications CCN
Not Used
communications CCN
J1
1
2
3
+24V DC
OAD
24VAC
Equipment Ground
24VAC DX2 Valve
Voltage Line
ON FAN
HEAT2HEAT1COM
CONDSW RMT/FS
CNGOVR
T56
SAT
SPT
IAQ
SPEED
+10V
GND GND
GND
GND GND
RH
Damper Air
Fresh
HIGH
MED
LOW
FAN AC
B
W
R
- B
GND W
+ R
24 VAC DX1 Valve
communications CCN
Not Used
communications CCN
CHANGE OVER
SENSOR
J1
1
2
3
Fig. 30 Remote Occupancy or Fan Status Wiring
Fig. 31 Changeover Sensor Wiring
1001
26
Connect the CCN Communication Bus The fan coil controllers connect to the bus in a daisy chain arrange- ment. The fan coil controller may be installed on a primary CCN bus or on a secondary bus from the primary CCN bus. Connecting to a secondary bus is recommended.
At any baud (9600, 19200, 38400 baud), the number of con- trollers is limited to 239 zones maximum. When Carrier link- age thermostats are used on the same bus as fan coil units, no more than 128 fan coils and 12 linkage thermostats may be on the same bus. Bus length may not exceed 4000 ft, with no more than 60 total devices on any 1000-ft section. Optically isolated RS-485 repeaters are required every 1000 ft. NOTE: Carrier thermostats operate at 9600 band.
The first fan coil controller in a network connects directly to the bridge and the others are wired sequentially in a daisy chain fashion. Refer to Fig. 32 for an illustration of CCN Communi- cation Bus wiring.
The CCN Communication Bus may also connect to the fan coil controller space temperature sensor. Refer to the Install Sensors section for sensor wiring instructions. COMMUNICATION BUS WIRE SPECIFICATIONS The Carrier Comfort Network (CCN) 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 CCN Communication Bus wire used for the entire network. See Table 3 for recom- mended cable.
Table 3 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 connecting on a secondary bus). When connecting the communication bus cable, a color code system for the entire network is recom- mended to simplify installation and checkout. See Table 4 for the recommended color code. Table 4 Color Code Recommendations
3. Connect the other end of the communication bus cable to the terminal block labeled CCN in the fan coil con- troller of the first air terminal. Following the color code in Table 4, 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 fan coil controllers in a daisy chain fashion, following the color coded wiring scheme in Table 4. Refer to Fig. 32.
NOTE: The communication bus drain wires (shield) must be tied together at each fan coil controller. If the communi- cation bus is entirely within one building, the resulting con- tinuous 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).
MANUFACTURER CABLE PART NO. Alpha 2413 or 5463 American A22503 Belden 8772 Columbia 02525
SIGNAL TYPE CCN BUS WIRE COLOR
PLUG PIN NUMBER
+ Red 1 Ground White 2 Black 3
CCN
1 2 3
CCN
1 2 3
CCN
1 2 3
CCN
1 2 3 COMM
1 2 3
GND
1000 FT. MAXIMUM
DRAIN WIRE (TYP)
BLK (TYP)
WHT (TYP)
RED (TYP)
FCCFCCFCCFCC
BRIDGE (RECOMMENDED)
LEGEND
Fig. 32 Communication Bus Wiring
CCN Carrier Comfort Network FCC Fan Coil Controller
27
START-UP Use the Carrier network communication software to start up
and configure the fan coil controller. All set-up and set point configurations are factory-set and
field-adjustable. Changes can be made using the ComfortWORKS soft-
ware, ComfortVIEW software, or Network Service Tool. The Network Service Tool is a portable interface device that al- lows the user to change system set-up and set points from a zone sensor or terminal control module. During start-up, the Carrier software can also be used to verify communication with each fan coil controller.
For specific operating instructions, refer to the literature provided with the software.
Perform System Check-Out 1. Check correctness and tightness of all power and com-
munication connections. 2. At the fan coil, check fan and system controls for
proper operation. 3. At the fan coil, check electrical system and connec-
tions of any optional electric reheat coil. If hot water reheat is used, check piping and valves against job drawings.
4. Check to be sure the area around the fan coil is clear of construction dirt and debris.
5. Check that final filters are installed in the fan coil. Dust and debris can adversely affect system operation.
6. Verify that the fan coil controller controls are properly connected to the CCN bus.
Initial Operation and Test Perform the following procedure:
1. Apply 24 vac power to the control. 2. Connect the service tool to the phone jack service port
of the controller. 3. Using the service tool, upload the controller from
address 0,1. The address may be set at this time. Make sure that Service Tool is connected to this fan coil unit only when changing the address.
Fan, Heat, and Cool Configuration and Test Perform the following procedure to configure and test the fan, cool, and heat:
1. Display the Fan Coil Service Configuration screen to make sure the proper Cool Type, Heat Type, fan speeds, and other options are configured. See the Con- figuration section to answer questions about the indi- vidual configurations.
2. Display the Points Display table. In most cases, the fan will start up in low speed due to the default settings. If the fan did not come on, forcing the fan output to ON using the Points Display table will cause the fan to run at low speed. Check to make sure the fan is running.
3. With the fan running at low speed, bring up the Fan Coil Maintenance screen. Two points are available to change fan speed to Medium or High. Change the speeds by forcing the point. Make sure the fan runs at the correct speeds. Change the points back to AUTO after completing the test.
4. Heating and cooling operation can be tested with the fan running in the occupied mode by forcing the space temperature point. Force the point to a value 2 degrees above the cooling set point to test cooling and 2 degrees below the heating set point to test heating.
5. If the fan coil is on a two-pipe system, operation of the valve for both modes can be tested by forcing the value of the changeover sensor to above 80 F. When forced above 80 F, the changeover mode will change to heat. (If the value of the changeover mode was already heat, this is not necessary.) When forced below 65 F, the changeover mode will change to cool.
CONFIGURATION The following sections describe the computer configuration
screens which are used to configure the fan coil controller. The screens shown may be displayed differently when using differ- ent Carrier software.
Points Display Table The Points Display table is used to monitor and change the fan coil controller set points. See Fig. 33. DESIRED MODE The Desired Mode is determined by the fan coil controller and can use information from a Linkage Thermostat or its local occupancy space conditions and set points. Desired Mode: Display Units ASCII
Default Value FAN ONLY Display Range OFF, OCC COOL, OCC
HEAT, FAN ONLY, UNOCCOOL, UNOCHEAT, DEHUMID
Network Access Read Only EQUIPMENT STATUS The Equipment Status point pro- vides a single point display on the main status screen of all alarm conditions. If any conditions monitored in the zone con- troller indicate an alarm condition, the value of this point will change from normal to alarm. Equipment Status: Display Units ASCII
Default Value ALARM Display Range ALARM, NORMAL Network Access Read Only
CONTROLLING SET POINT Controlling Set Point will display either the heating master reference or the cooling mas- ter reference depending upon what mode the fan coil is in. The display will default to the heating master reference and will dis- play the last controlling master reference when in neither heat- ing nor cooling. Controlling Set Point: Display Units degrees F (degrees C)
Default Value 40.0 Display Range 40.0 to 245.0 Network Access Read Only
CONTROLLING TEMPERATURE The Controlling Tem- perature point displays the temperature of the device currently being used by the fan coil controller to control heating and cooling outputs. This value could come from a Linkage Ther- mostat or a temperature sensor located in the conditioned space. Controlling Temperature: Display Units degrees F (degrees C)
Default Value 40.0 Display Range 40.0 to 245.0 Network Access Read/Write
SPACE TEMPERATURE This point displays the space temperature from the 10K thermistor located in the space. Space Temperature: Display Units degrees F (degrees C)
Default Value 40.0 Display Range 40.0 to 245.0 Network Access Read/Write
1001
28
SUPPLY AIR TEMPERATURE The Supply Air Temper- ature point displays the temperature of the air leaving the Fan Coil, downstream of any cool or heat sources. Temperature is measured by a 10K thermistor. This sensor is required for prop- er function of the heat and cool algorithms. Supply Air Temperature: Display Units degrees F (degrees C)
Default Value 0.0 Display Range 40.0 to 245.0 Network Access Read/Write
FAN MODE The Fan Mode point displays the status of the fan mode control. Fan Mode: Display Units ASCII
Default Value LOW Display Range OFF, ON, LOW,
MEDIUM, HIGH Network Access Read Only
COOLING CAPACITY When cooling is enabled, the percent of cooling being delivered is determined by the follow- ing formula for modulating (floating point) type heat:
% Output Capacity = ((SPT - SAT) / (SPT - 50 F)) * 100. The percent of cooling delivered is determined by the fol-
lowing for two-position hot water or staged electric heat: % Output Capacity = (# of active stages / Total stages) *
100. The Cooling Capacity point is used to display the current
Cooling Capacity. Cooling Capacity: Display Units % output capacity
Default Value 0 Display Range 0 to 100 Network Access Read Only
HEATING CAPACITY When heat is enabled, the per- cent of heat being delivered is determined by the following for- mula for modulating (floating point) type heat:
% Output Capacity = ((SAT - SPT) / (140 F - SPT)) * 100 The percent of heat delivered is determined by the follow-
ing for two-position hot water or staged electric heat: % Output Capacity = (# of active stages / Total stages) *
100 The Heating Capacity point is used to display the current
Heating Capacity. Heating Capacity: Display Units % output capacity
Default Value 0 Display Range 0 to 100 Network Access Read Only
FILTER STATUS The filter status point will be shown as CLEAN until the run time of the fan exceeds the configured Filter Timer Hours. When the user-configured Filter Timer Hours has been exceeded, the Filter Status will display DIRTY and a CCN alarm will be generated. Forcing the point to NORMAL will clear the alarm condition and will re- set the timer. The value of the timer is stored in EEPROM to protect it in the event of a power failure. This is done periodi- cally every 24 hours. The filter timer function only operates if the configured filter timer value (FLTTMR) is a non-zero number. Filter Status: Display Units Discrete ASCII
Default Value Clean Display Range Clean/Dirty Network Access Read/Write
CHANGEOVER MODE The Changeover mode indi- cates the allowable operating mode for two pipe heating/ cooling fan coil units. This point will display and follow the value of the Changeover Status after a 5-minute delay. Upon a transition of the Changeover Status, the fan coil controller will terminate the previously active mode. This allows the water valve to close if it was open. The Changeover Mode point will echo the value of the Changeover Status point after the termi- nation is complete. This point is NOT forcible (refer to the Changeover Status point in the maintenance table). Changeover Mode: Display Units Discrete ASCII
Default Value Heat Display Range Heat/Cool Network Access Read Only
CONDENSATE PUMP The Condensate Pump point is used to monitor the input from a condensate pump overflow switch. The Fan Coil controller will generate a CCN alarm message when this input is on longer than a user-configured time. The zone controller will generate a return to normal mes- sage if the status of this point is off for more than 60 seconds.
When a condensate alarm is generated, all mechanical cool- ing will immediately stop to prevent further condensate accu- mulation, regardless of whether the space temperature set point has been satisfied. The condensate overflow alarm will have no affect on the fan speed control. Mechanical cooling will resume normal operation after the condensate alarm has returned to normal. Condensate Pump: Display Units Discrete ASCII
Default Value Off Display Range Off/On Network Access Read/Write
REMOTE START The Remote Start point is the status of the remote occupancy input. When the Remote Start point is on, and the fan coil is not controlled by a Linkage Thermostat, the fan coil will function in an occupied mode. When the Re- mote Start point is off, the fan coil will revert to its own occu- pancy schedule. Remote Start: Display Units Discrete ASCII
Default Value Off Display Range Off/On Network Access Read/Write
SUPPLY FAN STATUS Supply Fan Status will display the supply fan status when a supply fan status sensing device has been installed and configured. Supply Fan Status:Display Units Discrete ASCII
Default Value No Display Range No/Yes Network Access Read/Write
AIR QUALITY The Air Quality point displays the indoor air quality reading from a CO2 sensor (or other type of air qual- ity sensor) installed in the space. The CO2 sensor is for moni- toring and alarm purposes only. The Fan Coil controller can be configured to generate an alarm when the zone controller is in the occupied mode and the CO2 level exceeds the high or low limit. Air Quality (ppm):Display units None shown (parts per
million implied) Default Value 0 Display Range 0 to 5000 Network Access Read/Write
1001
29
Fig. 33 Points Display Table
RELATIVE HUMIDITY The Relative Humidity point is the space relative humidity reading from an optional space rel- ative humidity sensor. A high humidity override function will cause the zone controller to provide full cooling if the Space Relative Humidity (RH) is above the current High Humidity Limit. During the humidity override, the 50 F minimum supply air temperature limit is maintained for DX type cooling. The Space Temperature must be above the current heating set point. If the zone controller is configured as a 2-pipe Changeover System, then the Changeover Mode must be Cooling. Relative Humidity: Display Units % RH
Default Value 0 Display Range 0 to 100 Network Access Read/Write
OUTDOOR AIR TEMPERATURE The Outdoor Air Temperature point is included to display the temperature of the outdoor air. This value must be broadcast by another device on the CCN network. If this point is receiving a valid broadcast value less than the DX cooling lockout value configured, then DX cooling will be locked out. Outdoor Air Temperature: Display Units degrees F (degrees C)
Default Value 0.0 Display Range 40.0 to 245.0 Network Access Read/Write
VALVE/DX1 The Valve/DX1 point provides the state of the Valve/DX1 triac (valve open for modulating cooling). Valve/DX1: Display Units Discrete ASCII
Default Value Off Display Range Off/On Network Access Read/Write (see note)
NOTE: Force both cooling or heating outputs off prior to forc- ing either input on. Then force only one heating or cooling out- put on at a time.
VALVE/DX2 The Valve/DX2 point provides the state of the Valve/DX2 triac (valve close for modulating cooling). Valve/DX2 Display Units Discrete ASCII
Default Value Off Display Range Off/On Network Access Read/Write (see note)
NOTE: Force both cooling or heating outputs off prior to forc- ing either input on. Then force only one heating or cooling out- put on at a time. HEATING 1 The Heating 1 point provides the state of the Heating 1 triac (valve open for modulating heating). Heating 1: Display Units Discrete ASCII
Default Value Off Display Range Off/On Network Access Read/Write (see note)
NOTE: Force both cooling or heating outputs off prior to forc- ing either input on. Then force only one heating or cooling out- put on at a time. HEATING 2 The Heating 2 point provides the state of the Heating 2 triac (valve close for modulating heating). Heating 2: Display Units Discrete ASCII
Default Value Off Display Range Off/On Network Access Read/Write (see note)
NOTE: Force both cooling or heating outputs off prior to forc- ing either input on. Then force only one heating or cooling out- put on at a time. DAMPER OUTPUT The Damper Output point provides the state of the fresh air damper relay. If the fan is OFF, or the occupancy status is Unoccupied or Biased Occupied, the damper is closed. Otherwise, if the fan is ON and the occupan- cy status is occupied, the damper is open. Damper Output: Display Units Discrete ASCII
Default Value Close Display Range Close/Open Network Access Read/Write
Description Value Units Status Force Name Notes Desired Mode Fan Only MODE Equipment Status Alarm ALARM Controlling Set Point 70.0 dF CSPT Controlling Temperature 72.0 dF SPT Space Temperature 72.0 dF RAT Supply Air Temperature 68.2 dF SAT Fan Mode Low FANSTAT Cooling Capacity 0.0 % CCAP Heating Capacity 0.0 % HCAP Filter Status Clean FLTSTAT Changeover Mode Heat CHGMODE Condensate Pump Off CON_PUMP Remote Start Off REMOTE Supply Fan Status On SFS Air Quality (PPM) 0.0 AQ Relative Humidity 0.0 %RH RH Outdoor Air Temperature 0.0 dF OAT Valve/DX1 Off CCV1 Valve/DX2 Off CCV2 Heating 1 Off HCV1 Heating 2 Off HCV2 Damper Output Close DAMPER Fan Output On FAN
1001
30
FAN OUTPUT During occupied periods, the fan operation is determined by the Occupied Fan Operation configuration de- cision. If this decision is set to continuous (1), the fan will oper- ate continuously during the occupied periods and during heat- ing, cooling, and dehumidification during unoccupied periods. If it is set to automatic (0), the fan will only operate only if heating, cooling or dehumidification is required (and heating or cooling is available in a 2-pipe changeover system). The Fan Output point displays the status of the fan.
During unoccupied periods, the fan will only operate if at least one of the following conditions is true: the Space Temperature exceeds the Cooling Set Point
and Cooling is available Space Temperature falls below the Heating Set Point and
Heating is available Space Humidity exceeds the Unoccupied High Humidity
limit and the Space Temperature is above the Heating set point
Space Humidity exceeds the Unoccupied High Humidity limit, the Space Temperature is below the Heating set point, the Heat Type is not None, and the unit is not con- figured for 2-pipe Changeover (0)
the control is configured for Unoccupied Fan Cycling and the current minute is equal to the calculated 1-minute time interval. The fan stops at the end of the occupied time if the above
conditions are satisfied. A 5-minute fan off delay will continue to provide fan operation after a cooling cycle is completed and under conditions where the fan would otherwise stop. This function improves IAQ by evaporating residual coil moisture (condensate) which contributes to bacteria growth.
The fan coil controller Unoccupied Fan Cycling option, when enabled, causes the fan to run for one minute each hour during unoccupied times. The exact time of operation is deter- mined by the CCN address. The purpose of this mode is to pre- vent air stagnation from causing the unit to operate or not oper- ate based upon improperly sensing the space temperature conditions.
Whenever a fan speed change is required, the zone control- ler will disable the fan output (for approximately 1 second) pri- or to changing the fan speed relays (FANSPD 1 and FANSPD 2). This will allow the speed relays to be switched under a no- load condition and will also prevent excessive EMI from being generated if the speed is being reduced. Once the fan speed re- lays are correctly positioned, the fan relay will be re-energized.
Following the execution of the initialization routine, the Fan Coil will delay an amount of time (in seconds) equal to the re- mainder of the Level II address divided by 60, before turning the fan on. This will allow for sequenced start-ups when more than one Fan Coil is connected to the network. Fan Output: Display Units Discrete ASCII
Default Value Off Display Range Off/On Network Access Read/Write
Alarm Service Configuration Table The Alarm Service Configuration Table is used to configure the alarms used on the fan coil controller. See Fig. 34. ALARM ROUTING CONTROL The Alarm Routing Control decision indicates which CCN system software or de- vices will receive and process alarms sent by the Fan Coil con- troller. This decision consists of eight digits which can be set to zero or one. A setting of one 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 (ComfortWORKS, ComfortVIEW, etc.); second digit - Autodial Gateway or Telink; fourth digit - Alarm Printer Inter- face Module, DataLINK module; digits 3 and 5 through 8 - un- used. Alarm Routing Control: Range 00000000 to 1111111
Default Value 11010000 RE-ALARM TIME This decision is used to configure the number of minutes the fan coil controller will wait before an alarm condition (which still exists) will be transmitted on the communications network again. Re-alarming of an alarm con- dition will continue until the condition no longer exists. Re-Alarm Time: Units Minutes
Range 0 to 1440 Default Value 0 (Disabled)
CONTROL TEMPERATURE HYSTERESIS This con- figuration defines the range above the high set point and below the low set point the space temperature must exceed for an alarm condition to exist during occupied hours. Control Temperature Hysteresis: Units delta F (delta C)
Range 1.0 to 20.0 Default Value 5
SUPPLY AIR TEMPERATURE The Supply Air Temper- ature High and Low Limit alarms are used to monitor the sup- ply air temperature. If the temperature becomes too low or too high, an alarm condition will exist. Supply Air Temperature Low Limit: Units degrees F (degrees C)
Range 40.0 to 245.0 Default Value 45.0
Supply Air Temperature High Limit: Units degrees F (degrees C)
Range 40.0 to 245.0 Default Value 150
OCCUPIED RELATIVE HUMIDITY The Occupied Rel- ative Humidity alarm defines the allowable humidity levels during occupied periods. If the humidity becomes too low or too high, an alarm condition will exist. Occupied Relative Humidity Low Limit: Units % RH
Range 0 to 100 Default Value 30
Occupied Relative Humidity High Limit Units % RH
Range 0 to 100 Default Value 70
UNOCCUPIED RELATIVE HUMIDITY The Unoccu- pied Relative Humidity alarm defines the allowable humidity levels during unoccupied periods. If the humidity becomes too low or too high, an alarm condition will exist. Unoccupied Relative Humidity Low Limit: Units % RH
Range 0 to 100 Default Value 10
Unoccupied Relative Humidity High Limit: Units % RH
Range 0 to 100 Default Value 90
31
INDOOR AIR QUALITY The Indoor Air Quality alarm defines the allowable CO2 levels during occupied periods. If the CO2 levels become too low or too high during occupied pe- riods, an alarm condition will exist. Indoor Air Quality Low Limit: Units PPM (implied,
not shown) Range 0.0 to 5000.0 Default Value 0.0
Indoor Air Quality High Limit Units PPM (implied,
not shown) Range 0.0 to 5000.0 Default Value 800.0
Controller Identification Screen The fan coil controller identification screen contains reference information used to identify the zone controller. See Fig. 35. DESCRIPTION The Description point displays the type of device (fan coil controller). LOCATION The Location point shows the location of the fan coil controller. SOFTWARE PART NUMBER The Software Part Num- ber indicates the part number of the software being used. MODEL NUMBER The Model Number indicates the model number of the fan coil being used. SERIAL NUMBER The Serial Number indicates the serial number of the fan coil being used. REFERENCE NUMBER The Reference Number indi- cates the version of the software being used.
Holiday Configuration Screen The Holiday Con- figuration screen is used by the fan coil controller to store con- figuration fields for up to twelve holidays. See. Fig. 36. START MONTH The Start Month field is used to config- ure the month that the holiday will start. The numbers 1 through 12 are used to indicate which month is specified. Start Month: Range 1 to 12
Default Value 1 (January)
START DAY The Start Day field is used to determine which day the holiday will start. Start Day: Range 1 to 31
Default Value 1 DURATION The Duration field indicates how long the holiday will last (in days). Duration: Range 0 to 365
Default Value 0 As an example, if a Holiday is configured for Month 2,
Day 5, Duration 2, then the Holiday will start February 5 and end February 7.
Occupancy Configuration Screen The Occu- pancy Configuration Screen is used to configure the occupancy schedule for the fan coil controller. See Fig. 37. MANUAL OVERRIDE HOURS The Manual Override Hours point is used to command a timed override by entering the number of hours the override will be in effect. If the occu- pancy schedule is occupied when this number is downloaded, the current occupancy period will be extended by the number of hours downloaded.
If the current occupancy period is unoccupied when the oc- cupancy override is initiated, the mode will change to occupied for the duration of the number of hours downloaded. If the oc- cupancy override is due to end after the start of the next occu- pancy period, the mode will transition from occupancy over- ride to occupied without becoming unoccupied and the occu- pancy override timer will be reset.
An active occupancy override or a pending occupancy over- ride may be canceled by downloading a zero to this configura- tion. Once a number other than zero has been downloaded to this configuration, any subsequent downloads of any value oth- er than zero will be ignored by the zone controller. NOTE: Manual Overrides are not tracked by Tenant Billing Reports. Manual Override Hours: Units hours
Range 0 to 4 Default Value 0
Fig. 34 Alarm Service Configuration Table
32
OCCUPANCY SCHEDULE For flexibility of scheduling, the occupancy programming is broken into eight separate peri- ods. For each period the schedule contains the following fields: Day of Week, Occupied From, and Occupied To. DAY OF WEEK The Day of Week 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.
It is displayed as: M T W Th Fr Sa Su Hol 0 0 0 0 0 0 0 0
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. Day of week: Range 0 or 1
Default Values 11111111 for period 1, 00000000 for the rest of the periods
OCCUPIED FROM This field is used to configure the hour and minute, in military time, that the mode for the fan coil controller will switch to occupied. Occupied From: Units Hours:Minutes
Range 00:00 to 24:00 (Minutes 00 to 59)
Default Value 00:00 OCCUPIED TO This field is used to configure the hour and minute, in military time, that the mode for the fan coil con- troller switches from occupied to unoccupied. Occupied To: Units Hours:Minutes
Range 00:00 to 24:00 (Minutes 00 to 59)
Default Value 24:00
Runtime Configuration Screen The Runtime Configuration screen is used to configure the Runtime system function. See Fig. 38.
The Runtime system function determines how long the con- figured discrete points have been on. Up to 16 points can be configured in each Runtime table. Up to 4 tables can be config- ured. Each point is read every minute and the amount of run- time is recorded. This data is then used by a CCN Data Collec- tion III option. Once an hour, the Data Collection supervisory device transmits an inquiry to the Comfort Controller. The
Comfort Controller sends back the run-time value for each configured point. POINT n NAME The Point n Name set point specifies the discrete point being monitored. There are 16 points where n represents the numbers 1 through 16. Point n Name: Units ASCII
Range 8 characters (Bldg Spvr) 96 characters (LID 6400) 32 characters (LID 1600)
Default Value SENSDI00 POINT n TYPE The Point n Type set point specifies whether the discrete point being monitored is a normal on/off type or and inverted off/on type. There are 16 points where n represents the numbers 1 through 16. Point n Type: Units ASCII (Bldg Spvr)
0 or 1 (LID) Range Normal or Invert (Bldg
Spvr) 0 or 1 (LID)
Default Value Normal (Bldg Spvr) 1 (LID)
Set Point Screen The Set Point screen is used to con- figure the occupied and unoccupied set points. See Fig. 39. OCCUPIED LOW The Occupied Low set point describes the low temperature limit of the space during Occupied mode. Occupied Low: Units degrees F (degrees C)
Range 40.0 to 90.0 Default Value 70.0
OCCUPIED HIGH The Occupied High set point describes the high temperature limit of the space during occupied mode. This value must be at least 1.0 F above the occupied low limit or the fan coil controller will automatically adjust the value to be 1.5 F above the occupied low limit. Occupied High: Units degrees F (degrees C)
Range 45.0 to 99.9 Default Value 74.0
UNOCCUPIED LOW The Unoccupied Low set point de- scribes the low temperature limit of the space during Unoccu- pied mode. Unoccupied Low: Units degrees F (degrees C)
Range 40.0 to 90.0 Default Value 55.0
UNOCCUPIED HIGH The Unoccupied High set point de- scribes the high temperature limit of the space during unoccu- pied mode. This value must be at least 1.0 F above the unoc- cupied low limit or the fan coil controller will automatically ad- just the value to be 1.5 F above the unoccupied low limit. Unoccupied High: Units degrees F (degrees C)
Range 45.0 to 99.9 Default Value 90.0
OCCUPIED HIGH RELATIVE HUMIDITY The Occu- pied High Relative Humidity set point describes the high hu- midity limit of the space during Occupied mode. Occupied High Relative Humidity: Units % RH
Range 0.0 to 100.0 Default Value 100.0
UNOCCUPIED HIGH RELATIVE HUMIDITY The Unoccupied High Relative Humidity set point describes the high humidity limit of the space during Unoccupied mode. Unoccupied High Relative Humidity: Units % RH
Range 0.0 to 100.0 Default Value 100.0
Fig. 36 Holiday Configuration Screen
Fig. 35 Controller Identification Screen
Description Value Units Name Notes
Description: Fan Coil Control DevDesc
Location: Location
Software Part Number: CESR131212-05 PartNum
Model Number: ModelNum
Serial Number: SerialNo
Reference Number: Version 2.0 RefNum
506
33
Fig. 37 Occupancy Configuration Screen
Fig. 38 Runtime Configuration Screen
Description Value Units Name Notes
Point n Name (n = 1 to 16) Text String PTnNAME (n = 1 to 16)
Point n Type (n = 1 to 16) Bldg Spvr = Normal/Invert LID = X
PTnTYPE (n = 1 to 16)
506
34
Service Configuration Selection The Service Configuration Selection screen is used to configure the service set points of the fan coil controller. See Fig. 40. TWO-PIPE CHANGEOVER The Two-Pipe Changeover configuration defines if the Fan Coil is on a two-pipe system. If the fan coil is on a two-pipe system, then it must use the same supply and return lines for both the heating and cooling source. A changeover temperature sensor is required. Two-Pipe Changeover: Units ASCII
Range Disable/Enable Default Value Disable
FAN OPERATION The Fan Operation configuration is used to define how the fan will operate during occupied peri- ods. The fan can operate in a continuous mode or cycle on a de- mand for heat or cool. If this decision is set to continuous (1) the fan will operate continuously during the occupied periods and operate only during heating, cooling, and dehumidification during unoccupied periods. If the configuration is set to auto- matic (0), the fan will only operate only if heating, cooling or dehumidification is required (and heating or cooling is available). Fan Operation: Range 0 to 1
Default Value 1 (continuous) NUMBER OF FAN SPEEDS The Number of Fan Speeds configuration is used to define the number of fan speeds wired on the fan coil. If the fan is in automatic control, the fan will operate at the lowest speed (0%) if dehumidification is re- quired. The fan will operate at the highest speed (Maximum Output %) if any stage of electric heat is operating and the sup- ply air temperature exceeds 130 F or if any stage of DX cool- ing is operating and the supply air temperature falls below 55 F. The fan speed will resume normal operation after all stag- es of electric heat are deactivated and the supply air tempera- ture falls below 100 F and if all stages of DX cooling are dis- abled. The fan will operate as a single speed fan at the speed desired by the user if a T57 sensor has selected manual speed control operation. Number of Fan Speeds (1-3): Range 0 to 3
Default Value 3 AUTOMATIC FAN SPEED CONTROL Automatic fan speed control is based on a PID control which calculates the fan speed as a value between 0 and the Maximum Output % based upon the amount of error (P) and time (I) that the space temperature has deviated from set point. The zone controller evaluates the fan speed every minute. The calculated value is displayed in the maintenance table. The Fan PID includes the following set points: Proportional Gain, Integral Gain, Deriva- tive Gain, and Starting Value.
Proportional Gain:Range 0.0 to 40.0 Default Value 10.0
Integral Gain: Range 0.0 to 10.0 Default Value 3.0
Derivative Gain: Range 0.0 to 20.0 Default Value 0.0
Starting Value: Units % Range 0.0 to 100.0 Default Value 0.0
COOLING TYPE The Cooling Type configuration sets the type of cooling that the fan coil will use. Cooling type has four selections available: 0 = None, 1 = Modulating Valve, 2 = Two- Position Valve, 3 = Direct Expansion Cooling. Cooling Type: Range 0 to 3
Default Value 0 COOLING CONTROL The fan coil controller reads the space temperature sensor and compares the temperature to the current high set point. If it exceeds the set point, and cool- ing is configured and available, the zone controller then calcu- lates the required supply-air temperature to satisfy the given conditions.
A Proportional / Integral / Derivative (PID) loop is used. The modulating control function compares the submaster refer- ence from the PID loop to the supply-air temperature and then calculates the direction and time to position the valve. The Cooling PID includes the following set points: Proportional Gain, Integral Gain, Derivative Gain, and Starting Value. Proportional Gain:Range 0.0 to 40.0
Default Value 8.0
Integral Gain: Range 0.0 to 10.0 Default Value 0.3
Derivative Gain: Range 0.0 to 20.0 Default Value 0.0
Starting Value: Units Degrees F Range 50.0 to 90.0 Default Value 65.0
NOTE: Default values are shown for Type 1 modulating Cooling. For other cooling types, refer to the following: Variable 2 Position and 1 Stage DX 2 Stage DX
PG 24.0 12.0 IG 0.0 0.5
Starting 65.0 65.0 Value
Fig. 39 Set Point Screen
35
Fig. 40 Service Configuration Selection Screen
Description Value Units Name Notes 2-Pipe Changeover Disable UNITTYPE Fan Control Fan Operation 1 FANOPR 0=Auto, 1=Continuous # Fan Speeds (1-3) 3 FAN_TYPE Fan PID Proportional Gain 10.0 KP Integral Gain 3.0 KI Derivative 0.0 KD Starting Value 0.0 % STARTVAL Cooling Type 0 COOL_TYP 1=Mod, 2=2-Pos, 3=DX Cooling PID Proportional Gain 8.0 KP Integral Gain 0.3 KI Derivative Gain 0.0 KD Starting Value 65.0 dF STARTVAL Staged Cooling Number of Stages 1 STAGES Stage 1 Time Gard Enable TG1 Stage 2 Time Gard Disable TG2 2-Pos Valve Logic Type Normal CLT1 Stage 2 DX Logic Type Normal CLT2 Heating Type 0 HEAT_TYP 1=Mod, 2=2 Pos, 3=Elec 4=2-Pipe Chg w/Elec Ht Heating PID Proportional Gain 8.0 KP Integral Gain 0.3 KI Derivative Gain 0.0 KD Starting Value 80.0 dF STARTVAL Fan Off Value 55.0 dF HCROV Staged Heating Number of Stages 2 STAGES 2-Pos Valve Logic Type Normal HLT1 2-Position Damper No DMP Air Quality AQ Low Voltage 0.0 Volts AQINLO AQ High Voltage 10.0 Volts AQINHI AQ Low Reference (PPM) 0.0 AQLO AQ High Reference (PPM) 2000.0 AQHI Filter Timer hrs * 100 15 FIL_TIMR Condensate Pump Timer 10 min CPTIMR Space Temp Trim 0.0 ^F RATTRIM Supply Air Temp Trim 0.0 ^F SATTRIM
1001
36
STAGED COOLING The staging function is used for two position valves or DX cooling (1 or 2 stages). The staging function uses the cooling submaster reference from the PID and compares the value to the supply-air temperature to calcu- late the required number of output stages to energize.
For DX cooling, configurable Time Guard delays are pro- vided to allow for up to 2 stages of compression. Also a DX Lockout will prevent operation of the DX cooling if the outdoor-air temperature is below this value. NOTE: Outdoor-air temperature must be provided through a CCN broadcast over the network.
Once cooling is active, a maintenance decision indicates that cooling is in effect. Also the cooling capacity is then calcu- lated based upon the supply-air temperature, the space temper- ature, and a minimum supply air temperature limit of 50 F.
The cooling algorithm controls the valve or stages of DX cooling to prevent the space temperature from exceeding the current cooling set point (which includes any calculated offset value from a T56 or T57 sensor slide bar during occupied peri- ods). Also, the cooling is controlled so that the supply-air tem- perature does not fall below 50 F when cooling is active. Number of Stages:Range 1, 2
Default Value 1 The Time Guards must be set to Enable for output to a com-
pressor, and set to Disable for output to a valve or compressor unloader. Stage 1 Time Guard: Range Disable/Enable
Default Value Enable
Stage 2 Time Guard: Range Disable/Enable
Default Value Disable The stage outputs will send a 24 VAC signal to the device
when turned on if these configurations are set to normal. The device will be sent a 24 VAC signal in the Off state if Inverted logic is applied. Two-Position Valve Logic Type: Range Normal/Inverted
Default Value Normal
Stage 2 DX Logic Type: Range Normal/Inverted
Default Value Inverted HEATING TYPE The Heating Type configuration sets the type of heating that the fan coil will use. Heating type has four selections available: 0 = None, 1 = Modulating Valve, 2 = Two- Position Valve, 3 = Electric Heat, 4 = Pipe Changeover with Electric Heat. Heating Type: Range 0 to 4
Default Value 0 HEATING CONTROL The fan coil controller determines if a heating demand exists in the space. The zone controller reads the space temperature sensor and compares the tempera- ture to the current low set point (including any calculated offset value from a T56 or T57 sensor) during occupied periods. If it is below the set point, and heating is configured and available, it then calculates the required supply air temperature to satisfy the given conditions. The calculated value (heating submaster reference) is compared to the actual supply-air temperature and the output is then adjusted to satisfy conditions. A Proportional / Integral / Derivative (PID) loop is used. The modulating con- trol function compares the submaster reference from the PID loop to the supply-air temperature and then calculates the di- rection and time to position the valve.
The staging function is used for two-position valves or elec- tric heating (1 or 2 stages). The staging function uses the heat- ing submaster reference from the PID and compares the value to the Supply Air Temperature to calculate the required number of output stages to energize.
For units using floating point valves, the floating point func- tion compares the submaster reference from the PID loop to the supply-air temperature to calculate the direction and time to position the valve. Both outputs are not allowed to be ON simultaneously.
The heating algorithm will control a modulating heating valve to maintain the space temperature at the midpoint be- tween the current low and high set points whenever dehumidi- fication is active and reheat has been enabled. During this time, a maintenance parameter will be set (reheat flag).
For two pipe changeover systems, the valve/DX output ter- minations are used for a single water valve. IF/THEN logic de- termines the routing of the control signals from the appropriate heating or cooling algorithm to the cooling valve hardware out- puts. The decision to route either heating or cooling is based upon the Changeover Mode and the 2-pipe Changeover Sys- tem configuration equal to Yes. The actual control type output is determined by the configured Heat Type.
The Heating PID includes the following set points: Propor- tional Gain, Integral Gain, Derivative Gain, Starting Value and Fan Off Value. Proportional Gain:Range 0.0 to 40.0
Default Value 8.0
Integral Gain: Range 0.0 to 10.0 Default Value 0.3
Derivative Gain: Range 0.0 to 20.0 Default Value 0.0
Starting Value: Units Degrees F Range 40.0 to 90.0 Default Value 80.0
Fan Off Value: Units Degrees F Range 35.0 to 120.0 Default Value 55.0
NOTE: Default values are shown for Type 1 modulating Heating. For other heating types, refer to the following: Variable 2 Position/1 Stage Electric 2 Stage Electric
PG 40.0 40.0 IG 0.0 0.5
Starting 85.0 85.0 Value
To maintain a minimum temperature that may prevent a coil freeze up on units located on an exterior wall, a configured fan off value is used when the unit is Off. This feature is only appli- cable to modulating heating and the Changeover Mode must be Heating for two pipe changeover systems. Heat capacity will be displayed as 0% and the Heating in Effect maintenance pa- rameter will display NO during minimum duct temperature control.
IMPORTANT: For 2-pipe systems, both heating and cooling types must be the same (for example, both set to 1, modulating, or both set to 2, two-position).
1001
37
STAGED HEATING The Staged Heating function is used for two-position valves or for electric heat (1 or 2 stages). The staging function uses the heating submaster reference value from the PID and compares it to the supply-air temperature to calculate the required number of output stages to energize. Number of Stages:Range 1 to 2
Default Value 1
Two-Position Valve Logic: Range Normal/Inverted
Default Value Normal The outputs will send a signal to the device when turned on
if these configurations are set to normal. The device will be sent a signal in the Off state if Inverted logic is applied.
For electric heat, a Time Guard is provided for the first stage to prevent excessive cycling and premature contactor failure. Once heating is active, a maintenance decision indicates that heating is in effect. Also the heating capacity is then calculated based upon the Supply Air Temperature, the Space Tempera- ture, and a maximum supply air temperature limit of 140 F. TWO POSITION DAMPER The Two-Position Damper configuration should be set to 1 if the fan coil controller is used with a two-position outdoor air ventilation damper. The damp- er control logic determines that if the fan is OFF, or the occu- pancy status is Unoccupied or Biased Occupied, the damper will be closed. If the fan is ON and the occupancy status is oc- cupied, the damper will be open. Two Position Damper: Range NO/YES
Default Value NO INDOOR AIR QUALITY The Indoor Air Quality set points configure the CO2 sensor for use with the zone control- ler. The voltage and reference set points allow the zone control- ler to interpret the voltage signal from the CO2 sensor. The AQ Low Voltage set point defines the lowest voltage that should be read from the air quality sensor. The AQ High Voltage configu- ration defines the highest voltage which should be read from the air quality sensor. The Low Reference configuration de- fines the value in parts per million which correlate to the low voltage reading from the air quality sensor. The High Refer- ence configuration defines the value in parts per million which correlate to the high voltage reading from the air quality sensor. AQ Low Voltage: Units Volts
Range 00.0 to 10.0 Default Value 0.0
AQ High Voltage: Units Volts Range 00.0 to 10.0 Default Value 10.0
Low Reference: Units None (Parts Per Million implied)
Range 0 to 5000 Default Value 0
High Reference: Units None (Parts Per Million implied)
Range 0 to 5000 Default Value 2000
FILTER TIMER HOURS The Filter Timer Hours config- uration determines when the filter status will display a Dirty alarm. When the Filter Timer Hours is configured to a value
other than zero and fan run time exceeds the value configured, the filter status will display Dirty and a CCN alarm will be generated. Setting the configured Filter Timer Hours value to zero will disable the alarm condition. The value of the timer is stored in EEPROM to protect it in the event of a power failure. The value is stored every 24 hours. The value is multiplied by 100. For example, if the Filter Timer Hours is set to 6, the Dirty condition would be generated after 600 hours of run time. Filter Timer Hours: Range 0 to 99
Default Value 15 CONDENSATE PUMP TIMER The Condensate Pump Timer configuration is used to set the amount of time which must elapse, after the Condensate pump overflow contact clos- es, before the fan will be shut down. Heating and cooling is dis- abled and an alarm message is broadcast. Condensate Pump Timer: Units minutes
Range 1 to 60 Default Value 10
SPACE TEMPERATURE TRIM The Space Temperature Trim configuration is used to calibrate the temperature display for a sensor that does not appear to be reading correctly. Space Temperature Trim: Units Delta F
Range 5.0 to 5.0 Default Value 0.0
SUPPLY AIR TEMPERATURE TRIM The Supply Air Temperature Trim configuration is used to calibrate the temper- ature display for a sensor that does not appear to be reading correctly. Supply Air Temperature Trim: Units Delta F
Range 5.0 to 5.0 Default Value 0.0
Fan Coil Configuration The Fan Coil Configura- tion screen allows the user to configure the functions of the fan coil. See Fig. 41. OCCUPANCY SCHEDULE NUMBER The Occupancy Schedule Number determines which Global Occupancy Schedule that the zone controller will follow. A value of 64 dis- ables global occupancy from CCN and will decide Occupancy from its local schedule. A value of 65 and above will allow the zone controller to follow the global occupancy schedule of the number broadcast over CCN. Occupancy Schedule Number Range 64 to 99
Default Value 64 GLOBAL SCHEDULE MASTER The Global Schedule Master setting configures the zone controller to broadcast or re- ceive a global schedule. If set to Yes, the zone controller will act as a global schedule master and its schedule will be broad- cast to the CCN. If set to No, the zone controller will not broad- cast a global schedule and it will receive the configured occu- pancy schedule number. Global Schedule Master: Range No/Yes
Default Value No
38
TIMED OVERRIDE The Timed Override decision is used to configure a timed override duration by entering the number of hours the override will be in effect. Pressing the override button on the space temperature sensor will cause an override.
If the current occupancy period is unoccupied when the oc- cupancy override is initiated, the mode will change to occupied for the duration of the number of hours downloaded. If the oc- cupancy override is due to end after the start of the next occu- pancy period, the mode will transition from occupancy over- ride to occupied without becoming unoccupied, and the occu- pancy override timer will be reset. Timed Override Hours: Range 0 to 4
Default Value 0 ENABLE REMOTE/FAN INPUT The Enable Remote/ Fan Input is used to configure the remote occupancy or fan sta- tus input. When set to a 0 the input functions as a remote occu- pancy contact. When set to a 1 the input functions as a fan sta- tus input. Enable Remote/ Fan Input: Range 0=Remote Start Input,
1=Fan Status Input Default Value 0=Remote Start Input
BROADCAST ACKNOWLEDGER This configuration de- fines if the fan coil controller will be used to acknowledge broadcast messages on the CCN bus. One broadcast acknowl- edger is required per bus, including secondary busses created by the use of a bridge. Broadcast Acknowledger: Range No/Yes
Default Value No TEMP SENSOR MODE Each fan coil controller has the capability to broadcast its attached space temperature sensor data or listen to another controllers sensor data over the net- work. All controllers sharing the same sensor must be installed on the same CCN 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 a sensor broadcast. The Temp
Sensor Config is used to specify if the controller is sharing the space temperature only, space temperature with temperature offset slidebar or space temperature, temperature offset slidebar and fan speed. The Broadcast Element # 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 Temp Sensor Config: Units None
Range 1=SPT, 2=SPT and offset, 3=SPT, offset and fan speed
Default Value 1 Broadcast Element #: Units None
Range 1 to 239 Default Value 1
MAXIMUM OFFSET ADJUSTMENT The Maximum Offset Adjustment value determines to what degree the occu- pied heating and cooling set points can be adjusted by the set point adjustment slide bar on the space temperature sensor. Maximum Offset Adjustment: Units None
Range 1 to 239 Default Value 1
UNOCCUPIED FAN CYCLING The Unoccupied Fan Cycling option, when enabled, causes the fan to run for one minute each hour during unoccupied periods. The exact time of operation is determined by the CCN address. The purpose of this mode is to prevent air stagnation from causing the unit to operate or not operate based upon improperly sensing the space temperature conditions. Unoccupied Fan Cycling: Range Disable/Enable
Default Value Disable
Fig. 41 Fan Coil Configuration Screen
Description Value Units Name Notes Occupancy Schedule # 64 SCH Global Schedule Master No GSM Timed Override Hours 0 hours TIMOVRID Enable Remote/Fan Input 0 Remote Start Input 1 Fan Status Input
0 EN_RC_FS
Broadcast Acknowledger No BROACK Temp Sensor Mode 1 Local Sensor 2 Broadcast 3 Listen
1 BRD_RECV
Temp Sensor Config 1 SPT 2 SPT & Offset 3 SPT, Offset, Fan Spd
1 SENSCFG
Broadcast Element # 04 BRDDEVID Max Offset Adjustment 2.0 ^F LIMT Unoccupied Fan Cycling Disable FAN_CYCL DX Outdoor Air Lock-out -40.0 dF DXLO Local RH Sensor No RHSENS Reheat Disable REHEAT Linkage Thermostat Cool Strt Bias(min/deg) 10 min KCOOL Heat Strt Bias(min/deg) 10 min KHEAT
1001
39
DX OUTDOOR AIR LOCKOUT The DX Lockout con- figuration will prevent operation of the DX cooling if the outdoor-air temperature is below the configured value. DX Outdoor Units F Air Lockout: Range 40.0 to 65.0
Default Value 40.0 LOCAL RH SENSOR The Local RH Sensor configura- tion defines if a local relative humidity sensor is installed. Local RH Sensor: Range No/Yes
Default Value No REHEAT The reheat configuration defines if the zone con- troller will allow simultaneous heating and cooling to maintain space temperature during the dehumidification mode. NOTE: The heating coil must be located downstream from the cooling coil if reheat is desired. Reheat: Range Disable/Enable
Default Value Disable LINKAGE THERMOSTAT The Linkage Thermostat start time biases allow the installer to configure the time per de- gree the space should take to recover in the heat and cool modes for optimum start with a Linkage Thermostat. These numbers will be used to calculate the Start Bias time. Cool Start Bias: Units minutes/degree
Range 0 to 60 Default Value 10
Heat Start Bias Units minutes/degree Range 0 to 60 Default Value 10
Occupancy Maintenance Table The Occupancy Maintenance Table is used to check the occupied schedule. In- formation concerning the current occupied period is displayed. See Fig. 42. MODE The Mode point displays the current occupied mode for the fan coil. If the fan coil is following its own local schedule this is the result of the local schedule status. If the fan coil is configured to follow a global schedule, this point dis- plays the mode last received from a global schedule broadcast. The point will display a 0 for unoccupied and a 1 for occupied. Mode: Display Range 0 to 1
Default Value 0 Network Access None
CURRENT OCCUPIED PERIOD If the fan coil is con- figured to determine occupancy locally, the Current Occupied Period point is used to display the current period determining occupancy. Current Occupied Period: Display Range 1 to 8
Default Value 0 Network Access None
OVERRIDE IN PROGRESS The Override in Progress point is used to display if an occupancy override is in progress. The point will display a yes if an override is in progress, or a no if there is no override. Override In Progress: Display Range Yes/No
Default Value No Network Access None
OVERRIDE DURATION The Override Duration point displays the number 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 Default Value 0 Network Access None
OCCUPIED START TIME The Occupied Start Time point shows the time that the current occupied mode began. If the current mode is unoccupied or the fan coil is following a global schedule, the value displayed by this point will remain at default. Occupied Start Time: Display Range 00:00 to 23:59
Default Value 0:00 Network Access None
UNOCCUPIED START TIME The Unoccupied Start Time point shows the time that the current occupied mode will end. This will also be the beginning of the next unoccupied mode. If the current mode is unoccupied or the fan coil is fol- lowing a global schedule, the value displayed by this point will remain at default. Unoccupied Start Time: Display Range 00:00 to 24:00
Default Value 0:00 Network Access None
Fig. 42 Occupancy Maintenance Table Screen
40
NEXT OCCUPIED DAY The Next Occupied Day point displays the day of week when the next occupied period will begin. This point is used with the Next Occupied Time so the user will know when the next occupied period will occur. If the fan coil is following a global schedule this point will remain at default. Next Occupied Day: Display Range MON, TUE, WED,
THU, FRI, SAT, SUN Default Value No display (Blank) Network Access None
NEXT OCCUPIED TIME The Next Occupied Time point displays the time day when the next occupied period will begin. This point is used with the Next Occupied Day so the user will know when the next occupied period will occur. If the fan coil is following a global schedule this point will remain at default. NOTE: If the current mode is occupied, this point makes refer- ence to the next occupied period and, in most cases, it will not be the same as the current occupied start time. Next Occupied Time: Display Range 00:00 to 24:00
Default Value 0:00 Network Access None
NEXT UNOCCUPIED DAY The Next Unoccupied Day point displays the day of week when the next unoccupied peri- od will begin. This point is used with the Next Unoccupied Time so the user will know when the next unoccupied period will occur. If the fan coil is following a global schedule this point will remain at default. Next Unoccupied Day: Display Range MON, TUE, WED,
THU, FRI, SAT, SUN Default Value No display (Blank) Network Access None
NEXT UNOCCUPIED TIME The Next Unoccupied Time point displays the time day when the next unoccupied period will begin. This point is used with the Next Unoccupied Day so the user will know when the next unoccupied period will occur. If the fan coil is following a global schedule this point will remain at default. NOTE: If the current mode is occupied, this point makes refer- ence to the next unoccupied period and, in most cases, will be the same as the unoccupied start time. Next Unoccupied Time: Display Range 00:00 to 24:00
Default Value 0:00 Network Access None
LAST UNOCCUPIED DAY The Last Unoccupied Day point displays the day of week when the fan coil last changed from occupied to the Unoccupied mode. This point is used in conjunction with the Last Unoccupied Time to know the last time and day when the fan coil became unoccupied. If the fan coil is following a global schedule this point will remain at default. Last Unoccupied Day: Display Range MON, TUE, WED,
THU, FRI, SAT, SUN Default Value No display (Blank) Network Access None
LAST UNOCCUPIED TIME The Last Unoccupied Time point displays the time of day when the fan coil last changed from occupied to the Unoccupied mode. This point is read in conjunction with the Last Unoccupied Day to know the last time and day when the fan coil became unoccupied. If the fan
coil is following a global schedule this point will remain at default. Last Unoccupied Time Display Range 00:00 to 24:00
Default Value 0:00 Network Access None
Fan Coil Maintenance Table The Fan Coil Main- tenance Table is used to service the fan coil. See Fig. 43. OCCUPIED The Occupied point indicates if the Fan Coil is operating in the occupied mode. Occupied: Display Range No/Yes
Default Value No Network Access Read Only
LINKAGE IN EFFECT The Linkage in Effect point dis- plays whether an air source linkage is in effect. This means the fan coil controller is being controlled by a Linkage Thermostat. Linkage in Effect: Display Range No/Yes
Default Value No Network Access Read Only
TIMED OVERRIDE IN EFFECT The Timed Override In Effect point shows if a timed override is currently in effect. Timed Override in Effect: Display Range No/Yes
Default Value No Network Access Read Only
START BIAS TIME The Start Bias Time, in minutes, is calculated during the unoccupied period by the fan coil control- ler as needed to bring the temperature up or down to the set point under the optimum start routine. The start time bias for heat and cool are configurable. This value will be reported to the Linkage Thermostat if it is used. It will also be used by the fan coils internal occupancy schedule to determine the start of the Optimal Start period. It cannot be used with Global Scheduling. Start Bias Time: Display Units minutes
Display Range 0 to 180 Default Value 0 Network Access Read only
SET POINT OFFSET The Set Point Offset point displays the set point offset currently requested at the 33ZCT56SPT and 33ZCT57SPT room sensor with set point offset capability. the set point offset value is calculated only during occupied peri- ods. Set Point Offset: Display Units Delta F (Delta C)
Display Range 20.0 to 20.0 Default Value 0.0 Network Access Read Only
T57 STATUS The 33ZCT57SPT thermostat provides a voltage input to the fan coil controller in order to select fan speed operation. The 10 vdc power and ground are provided by the fan coil controller and the potentiometer wiper provides the voltage signal back to the zone controller. The following is a ta- ble of values displayed by the T57 Status and acceptable volt- age ranges for each fan speed position: Display Position Voltage Minimum Voltage Maximum 0 Off 0.0 0.75 1 Low 2.0 4.0 2 Med 4.9 6.5 3 Hi 7.6 9.1 4 Auto 9.7 10.0
T57 Status: Display Range 0 to 4 Default Value 4 Network Access Read/Write
303
41
Fig. 43 Fan Coil Maintenance Table Screen
42
HEAT MASTER REFERENCE The Heat Master Refer- ence point displays the occupied low set point, if occupied, or the unoccupied low set point, if unoccupied. The set point off- set (if applicable) is calculated into the value. Heat Master Reference: Display Units degrees F (degrees C)
Display Range 40.0 to 90.0 Default Value 70.0 Network Access Read Only
HEAT SUBMASTER REFERENCE If heat is enabled, the Heat Submaster Reference point displays the desired sup- ply air temperature calculated to heat the space. This is a result of the heating PID loop calculation. Heat Submaster Reference: Display Units degrees F (degrees C)
Display Range 35.0 to 140.0 Default Value 0 Network Access Read/Write
COOL MASTER REFERENCE The Cool Master Refer- ence point displays the occupied high set point, if mode is oc- cupied, or the unoccupied high set point if mode is unoccupied. The set point offset (if applicable) is calculated into the value. Cool Master Reference: Display Units degrees F (degrees C)
Display Range 45.0 to 99.9 Default Value 74.0 Network Access Read Only
COOL SUBMASTER REFERENCE If cooling is en- abled, the Cool Submaster Reference point displays the de- sired supply air temperature calculated to cool the space. This is a result of the cooling PID loop calculation. Cool Submaster Reference: Display Units degrees F (degrees C)
Display Range 40.0 to 150.0 Default Value 0 Network Access Read/Write
COOLING IN EFFECT The Cooling In Effect point shows if there is a demand for cooling in the space. The space temperature must be above the Occupied High or Unoccupied High set point. Cooling in Effect: Display Range No/Yes
Default Value No Network Access None
HEATING IN EFFECT The Heating In Effect point shows if there is a demand for heat in the space. The space tempera- ture must be below the Occupied Low or Unoccupied Low set point. Heating in Effect: Display Range No/Yes
Default Value No Network Access None
REHEAT IN EFFECT The Reheat in Effect point shows if the fan coil is in a dehumidification mode and attempting to re- heat the dehumidified air to maintain the space temperature. If Reheat is enabled, the zone controller will fully open the cool- ing valve, if the space temperature is above the heating set point. Simultaneously, it will modulate the heating valve to raise or maintain the space temperature at the configured occu- pied cooling set point during dehumidification. Reheat in Effect: Display Range No/Yes
Default Value No Network Access None
FAN SPEED The Fan Speed point displays the current fan speed (in percentage). Fan Speed: Display Units %
Display Range 0 to 100 Default Value 0 Network Access None
FAN SPEED MEDIUM The Fan Speed Medium point displays whether the medium fan speed is on or off. Fan Speed Medium: Display Range Off/On
Default Value Off Network Access Read/Write
FAN SPEED HIGH The Fan Speed High point displays whether the high fan speed is on or off. Fan Speed High: Display Range Off/On
Default Value Off Network Access Read/Write
CHANGEOVER TEMPERATURE The Changeover Tem- perature point displays the value from the changeover sensor (water temperature sensor attached to the two-pipe water loop) for the fan coil. The Changeover Temperature value is forcible. It may be received through CCN from a Comfort Controller that monitors the water loop temperature and provides control of boilers and/or chillers. Changeover Temperature: Display Units degrees F (degrees C)
Display Range 40.0 to 245.0 Default Value 40.0 Network Access Read/Write
CHANGEOVER STATUS Applicable to two-pipe heating/ cooling systems, the Changeover Status point determines whether the temperature indicated by the changeover sensor will allow the fan coil to provide heating or cooling operation. The value is determined from the changeover temperature sen- sor reading as:
<65 F = COOL >80 F = HEAT between 65 and 80 = last active status Changeover Status is forcible. It may be received through
CCN from a Comfort Controller which monitors and maintains the water loop temperature. NOTE: This value defaults to HEAT if a changeover sensor failure occurs or for non-changeover systems. Changeover Status: Display Range Heat/Cool
Default Value Heat Network Access Read/Write
LINKAGE THERMOSTAT The following Linkage Ther- mostat points display the standard values received from a Link- age Thermostat (if one is being used to provide space tempera- ture, set point and occupancy information) for this fan coil. The Linkage Status point displays the status of the linkage broadcasts from the Linkage Thermostat. A value of 0 is nor- mal communication. A value of 1 is communication failure. A value of 2 is not configured. A value of 3 is a change in com- munication status between supervisory and equipment. Linkage Status: Display Range 0 to 3
Default Value 2 Network Access None
The Average Occupied Heat Set Point displays the Occu- pied Heat set point from the Linkage Thermostat. Average Occupied Heat Set Point: Display Units degrees F (degrees C)
Display Range 0.0 to 99.9 Default Value 0.0 Network Access None
43
The Average Occupied Cool Set Point displays the Occu- pied Cool set point from the Linkage Thermostat. Average Occupied Cool Set Point: Display Units degrees F (degrees C)
Display Range 0.0 to 99.9 Default Value 0.0 Network Access None
The Average Unoccupied Heat Set Point displays the Unoc- cupied heat set point from the Linkage Thermostat. Average Unoccupied Heat Set Point: Display Units degrees F (degrees C)
Display Range 0.0 to 99.9 Default Value 0.0 Network Access None
The Average Unoccupied Cool Set Point displays the Unoc- cupied cool set point from the Linkage Thermostat. Average Unoccupied Cool Set Point: Display Units degrees F (degrees C)
Display Range 0.0 to 99.9 Default Value 0.0 Network Access None
The Average Zone Temperature displays the space tempera- ture from the Linkage Thermostat. Average Zone Temperature: Display Units degrees F (degrees C)
Display Range 0.0 to 99.9 Default Value 0.0 Network Access None
The Average Occupied Zone Temperature displays the space temperature from the Linkage Thermostat during occu- pied periods. Average Occupied Zone Temperature:Display Units degrees F (degrees C)
Display Range 0.0 to 99.9 Default Value 0.0 Network Access None
The Occupancy Status point displays a 1 if occupancy is re- ported by the Linkage Thermostat. The Occupancy Status point displays a 0 if occupancy is not reported by the Linkage Ther- mostat. Occupancy Status: Display Range 0, 1
Default Value 0 Network Access None
Water System Manager Maintenance Screen The Water System Manager Maintenance screen is used to provide maintenance information for the water sys- tem. See Fig. 44. COOLING LINK ACTIVE The Cooling Link Active de- cision displays the status of communications between the fan coil and the cool source with which it is linked. If Yes dis- played, it indicates that the WSM (Water System Manager) is successfully transmitting information to the fan coil from a linked, configured, cooling source.
A No indicates that the fan coil is not currently communi- cating with a cooling source. The lack of communication may indicate that the WSMs algorithms are disabled, that the Load Configuration Table is misconfigured, or that communication has failed. The fan coil controller will determine that communi- cation has failed when 5 minutes pass without any cool source data being received from the WSM.
When No is displayed, the Chilled Water Temperature and Cool Source Status decisions continue to display their last valid data. Cooling Link Active? Display Units Yes/No
Default Value No HEATING LINK ACTIVE The Heating Link Active deci- sion displays the status of communications between the fan coil and the heat source with which it is linked. If Yes displayed, it indicates that the WSM is successfully transmitting informa- tion to the fan coil from a linked, configured, heating source.
A No indicates that the fan coil is not currently communi- cating with a heating source. The lack of communication may indicate that the WSMs algorithms are disabled, that the Load Configuration Table is misconfigured, or that communication has failed. The fan coil controller will determine that communi- cation has failed when 5 minutes pass without any heat source data being received from the WSM. When No is displayed here, the Hot Water Temperature and Heat Source Status deci- sions continue to display their last valid data. Heating Link Active? Display Units Yes/No
Default Value No COOL SOURCE NUMBER The Cool Source Number decision displays the number of the cool source that is linked to the fan coil by a WSM. Cool source numbers are determined by the number of the associated Cool Source Configuration Table at the WSM. A 0 will be displayed in this decision if no cool source is configured for the fan coil at the WSM. Cool Source Number: Display Units 1 to 4 (cool source
numbers) Default Value 0 = no cool source
HEAT SOURCE NUMBER The Heat Source Number de- cision displays the number of the heat source that is linked to the fan coil by a WSM. Heat source numbers are determined by the number of the associated Heat Source Configuration Table at the WSM. A 0 will be displayed in this decision if no heat source is configured for the fan coil at the WSM. Heat Source Number: Display Units 1 to 4 (heat source
numbers) Default Value 0 = no heat source
OCCUPANCY MODE The current occupancy status of the fan coil is displayed in this decision. The occupancy mode is occupied when the fan coils occupancy time schedule is oc- cupied (or biased occupied). It is unoccupied when the fan coils occupancy schedule is unoccupied. Occupancy Mode: Display Units 0 = unoccupied 1 =
occupied (or biased occupied)
Default Value 1 CHILLED WATER TEMPERATURE The Chilled Water Temperature decision displays the current leaving water temperature at the cool source that is linked to the fan coil by the WSM. The decision will display the value 0.0 if no cool source is configured for the fan coil at the WSM. Chilled Water Temperature: Display Units degrees F (degrees C)
Default Value 0.0
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. PC 111 Catalog No. 533-356 Printed in U.S.A. Form 33ZC-2SI Pg 44 506 3-00 Replaces: NewBook 1 4
Tab 11a 13a
Copyright 2000 Carrier Corporation
COOL SOURCE STATUS This decision displays the cur- rent status of the cool source that is linked to the fan coil by the WSM. When this decision displays Off, it indicates either that the cool source is off, or that no cool source is configured at the WSM for the fan coil. Cool Source Status: Display Units On/Off
Default Value Off HOT WATER TEMPERATURE This decision displays the current leaving water temperature at the heat source that is linked to the fan coil by the WSM. The decision will display the value 0.0 if no heat source is configured for the fan coil at the WSM. Hot Water Temperature: Display Units degrees F (degrees C)
Default Value 0.0
HEAT SOURCE STATUS This decision displays the cur- rent status of the heat source that is linked to the fan coil by the WSM. When this decision displays Off, it indicates either that the heat source is off, or that no heat source is configured at the WSM for the fan coil. Heat Source Status: Display Units On/Off
Related manuals for Carrier 33ZCFANCOL Installation Instructions
Manualsnet FAQs
If you want to find out how the 33ZCFANCOL Carrier works, you can view and download the Carrier 33ZCFANCOL Installation Instructions on the Manualsnet website.
Yes, we have the Installation Start-Up and Configuration Instructions for Carrier 33ZCFANCOL as well as other Carrier manuals. All you need to do is to use our search bar and find the user manual that you are looking for.
The Installation Start-Up and Configuration Instructions should include all the details that are needed to use a Carrier 33ZCFANCOL. Full manuals and user guide PDFs can be downloaded from Manualsnet.com.
The best way to navigate the Carrier 33ZCFANCOL Installation Instructions is by checking the Table of Contents at the top of the page where available. This allows you to navigate a manual by jumping to the section you are looking for.
This Carrier 33ZCFANCOL Installation Instructions consists of sections like Table of Contents, to name a few. For easier navigation, use the Table of Contents in the upper left corner.
You can download Carrier 33ZCFANCOL Installation Instructions free of charge simply by clicking the “download” button in the upper right corner of any manuals page. This feature allows you to download any manual in a couple of seconds and is generally in PDF format. You can also save a manual for later by adding it to your saved documents in the user profile.
To be able to print Carrier 33ZCFANCOL Installation Instructions, simply download the document to your computer. Once downloaded, open the PDF file and print the Carrier 33ZCFANCOL Installation Instructions as you would any other document. This can usually be achieved by clicking on “File” and then “Print” from the menu bar.