Contents

Carrier 40MBFQ Owner's Manual PDF

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Summary of Content for Carrier 40MBFQ Owner's Manual PDF

Specifications subject to change without notice.

TABLE OF CONTENTS

PAGE A NOTE ABOUT SAFETY ........................................................................................................................2 GENERAL...................................................................................................................................................2 PARTS LIST................................................................................................................................................3 WIRELESS REMOTE CONTROL FUNCTION BUTTONS....................................................................4 REMOTE CONTROL .................................................................................................................................6 REMOTE CONTROL FUNCTIONS..........................................................................................................8 CLEANING, MAINTENANCE AND TROUBLESHOOTING ..............................................................13 TROUBLESHOOTING.............................................................................................................................15

NOTE TO EQUIPMENT OWNER:

Please read this Owners Information Manual carefully before installing and using this appliance and keep this manual for future reference. For your convenience, please record the model and serial numbers of your new equipment in the spaces provided. This information, along with the installation data and dealer contact information, will be helpful should your system require maintenance or service.

UNIT INFORMATION Model # _______________________________

Serial # ________________________________

INSTALLATION INFORMATION Date Installed ___________________________

DEALERSHIP CONTACT INFORMATION Company Name: ______________________

Address:_____________________________

Phone Number:________________________

Technician Name:______________________

Owners Manual

40MBFQ Floor Console Ductless System Sizes 12 to 58

40MBFQ: Owners Manual

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

2

A NOTE ABOUT SAFETY

Any time you see this symbol in manuals, instructions and on the unit, be aware of the potential for personal injury. There are 3 levels of precaution:

1. DANGER identifies the most serious hazards which will result in severe personal injury or death.

2. WARNING signifies hazards that could result in personal injury or death.

3. CAUTION is used to identify unsafe practices which could result in minor personal injury or product and property damage.

NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

GENERAL The floor console fan coil unit provides quiet, maximum comfort.

In addition to cooling and/or heating, the floor console fan coil unit

matched with an outdoor condensing unit filters and dehumidifies the air in the room to provide maximum comfort.

IMPORTANT: The floor console fan coil unit should be installed by authorized personnel only; using approved tubing and accessories. If technical assistance, service or repair is needed, contact the installer.

The floor console fan coil unit can be set up and operated from the remote control (provided). If the remote is misplaced, the system can be operated from the AUTO setting on the unit.

Operating Modes The floor console unit has five operating modes:

FAN Only

AUTO

HEATING (heat pumps only)

COOLING

DEHUMIDIFICATION (DRY)

FAN Only In the FAN Only mode, the system filters and circulates the room air without changing room air temperature.

AUTO In the AUTO mode, the system automatically cools or heats the room according to the user-selected set point.

NOTE: AUTO mode is recommended for use on single zone applications ONLY. Using AUTO CHANGEOVER on multi-zone applications could set an indoor unit to STANDBY mode, indicated with two dashes (--) on the display, which will turn off the indoor unit until all the indoor units are in the same mode (COOLING or HEATING). HEATING is the system's priority mode. Simultaneous HEATING and COOLING is not allowed.

HEATING In the HEATING mode, the system heats and filters the room air.

COOLING In the COOLING mode, the system cools, dries and filters the room air.

DEHUMIDIFICATION (DRY) In DEHUMIDIFICATION mode, the system dries, filters and slightly cools the room air temperature. This mode prioritizes air dehumidification but it does not take the place of a dehumidifier.

Wireless Remote Control The remote control transmits commands to set up and operate the system. The control has a window display panel that displays the current system status. The control can be secured to a surface when used with the mounting bracket provided.

Wired Remote Control (Optional) Refer to the Wired Controller manual.

24V Interface (Optional) Allows the control of the Ductless System with a third party thermostat.

PERSONAL INJURY, DEATH AND / OR PROPERTY DAMAGE HAZARD Failure to follow this warning could result in personal injury, death or property damage. Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or service agency must use factoryauthorized kits or accessories when modifying this product. Read and follow all instructions and warnings, including labels shipped with or attached to unit before operating your new air conditioner.

WARNING

40MBFQ: Owners Manual

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

3

PARTS LIST

Fig. 1 Size 12K Fig. 2 Sizes 18K - 58K

INDOOR UNIT DISPLAY PANELS

Fig. 3 IR (Infrared) Receiver Display Panel

NOTE: Images within this manual are for illustration purposes only. Actual model may differ slightly.

Drain hose

Refrigerant connecting pipe

Display panel

Air inlet (with air filter in it)

Air flow louver (air outlet)

Air flow louver (air outlet)

Display panel

E. Connecting point of refrigerant pipe

(D. gas side)

D. Connecting point of refrigerant pipe

(E. Liquid side)

Drain point

5Display panel

Air inlet (with air filter inside)

Air inlet louver (at air outlet)

Infrared signal receiver

Operation lamp Alarm indicator Temporary button Temperature indicator

Timer indicator

PRE-DEF indicator (cooling and heati)ng type or FAN ONLY indicator (cooling only type)

MANUAL

Sizes 18-58

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4

WIRELESS REMOTE CONTROL FUNCTION BUTTONS

Before you begin using your new air conditioner, familiarize yourself with the remote control.

Fig. 4 Remote Controller Function Buttons

NOTE: New remote controller starting on production of week 10 year 2021 (serial number 1021V17181). For advanced functions, refer to the RG10B(B1)/BGEFU1 Wireless Remote Controllers Service Manual.

ON/OFF Turns the unit on or off.

MODE

OK

TIMER

SHORTCUT

CLEAN

LED

Turbo

SLEEP

Scrolls through operation modes as follows: AUTO COOL DRY HEAT FAN

FAN SPEED

SWING

TEMP

Use to confirm the selected functions

Decreases temperature O Oin 1 F(1 C) increments.

Min. temperature is

Increases temperature O Oin 1 F(1 C) increments.

Max. temperature is O O86 F(30 C).

Set timer to turn unit on or off.

Saves energy during sleeping hours.

Selects fan speeds in the following order: AUTO LOW MED HIGH NOTE: Holding this button down for 2 seconds will activate Silence feature.

Enables unit to reach preset temperature in shortest possible time

Use to restore the current settings or resume previous settings.

Starts and stops the horizontal louver movement. Hold down for 2 seconds to initiate vertical louver auto swing feature.

TEMP

SET Scrolls through operation functions as follows: Fresh( ) Follow Me( )

AP mode( ) Fresh .... The selected symbol will flash on the display area, press the OK button to confirm.

Use to start/stop the Clean function.

Turns indoor units LED display and air conditioner buzzer on and off (modeldependent), which create a comfortable and quiet environment.

Turbo

62F (17C)

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5

WIRELESS REMOTE CONTROL LCD SCREEN INDICATORS

Fig. 5 Wireless Remote Display

Transmission Indicator

MODE display

TIMER ON display

FAN SPEED display

TIMER OFF display

Silence feature display

ECO display

GEAR display

LOCK display

Temperature/Timer/Fan speed display

Sleep mode display

Follow me feature display

Wireless control feature display

Low battery detection display(If flashes)

Displays when LOCK feature is activated.

LOW

MED

HIGH

AUTO

Lights up when remote sends signal to indoor unit

Displays selected fan speed:

Displays the current including:

mode,

This fan speed can not be adjusted in AUTO or DRY mode.

Not available for this unit

Not available for this unit

Displays the set temperature by default, or fan speed or timer setting when using TIMER ON/OFF functions.

Temperature range:

Timer setting range: 0-24 hours

This display is blank when operating in FAN mode.

(Model dependent)

Fresh feature display(some units) (No displays when Fresh feature is activated)

62-86F/17-30C (20-28C)

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Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

6

REMOTE CONTROL

IMPORTANT: The wireless remote control can operate the unit from a distance of up to 26 ft. (8 m) as long as there are no obstructions.

NOTE: If a Wireless Remote controller is used, relocate the IR (Infrared) Receiver within line of sight of the remote location using the 6 ft. cable included. The factory location of the IR receiver is inside the control box.

When the timer function is used, the remote control should be kept in the vicinity of the unit (within 26 ft. (8 m).

The remote control can perform the following basic functions:

Turn the system ON and OFF

Select the operating mode

Adjust room air temperature set point and fan speed

Refer to the WIRELESS REMOTE CONTROL FUNCTION BUTTONS on page 4 for a detailed description of all the capabilities of the remote control.

Battery Installation

Two AAA 1.5v alkaline batteries (included) are required to operate the remote control.

To install or replace batteries:

1. Slide the back cover off the control to open the battery compartment.

2. Insert the batteries. Follow the polarity markings inside the battery compartment.

3. Replace the battery compartment cover.

NOTES:

1. When replacing batteries, do not use old batteries or a different type of battery. This may cause the remote control to malfunction.

2. If the remote is not going to be used for several weeks, remove the batteries. Otherwise, battery leakage may damage the remote control.

3. The average battery life under normal use is about 6 months.

4. Replace the batteries when there is no audible beep from the indoor unit or if the Transmission Indicator fails to light.

5. When batteries are removed, the remote control erases all programmed settings. The control must be reprogrammed after the insertion of new batteries.

Remote Control Operation - Quick Start

NOTE: When transmitting a command from the remote control to the unit, be sure to point the control toward the right side of the unit. The unit confirms receipt of a command by sounding an audible beep.

1. Turn the unit on by pushing ON/OFF.

NOTE: If there is a preference for C rather than F (default), press and hold TEMP or TEMP together for approximately 3 seconds.

2. Select the desired mode by pushing MODE.

Fig. 6 Modes 3. Select the temperature set point by pointing the control toward the

unit and pressing the increase/decrease temperature set point buttons until the desired temperature appears on screen.

4. Press FAN to select the desired fan speed.

NOTE: If the unit is operating in DRY or AUTO mode, the fan speed will be automatically set.

5. Set the airflow direction. When the unit is turned on, the Up-Down airflow louvers default to the cooling or heating position. The user can adjust the horizontal Up-Down airflow louver position by pushing DIRECT or have continuous louver movement by pressing SWING.

Manual Operation

If the remote control is lost, damaged, or the batteries are exhausted, MANUAL can be used to run the unit. When MANUAL is pressed once, the AUTO mode takes affect (heat or cool). When this button is pressed twice, the system enters the TEST mode and runs for 30 minutes in the COOLING mode (it will run in the AUTO mode afterward). When pressed three times, the system turns OFF.

Fig. 7 Manual Button

The set conditions of manual operation are as follows:

Preset set point: 76F (24C)

Fan speed: AUTO

Discharge air direction: Pre-set position based on operation in the COOL or HEAT mode

EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in equipment damage. Handle the control with care and avoid getting the control wet.

CAUTION

AUTO COOL DRY HEAT FAN

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7

BASIC REMOTE CONTROL OPERATION

Before operation, ensure the unit is plugged in and power is available.

COOL Mode

Fig. 8 COOL Mode

1. Press MODE to select the COOL mode. 2. Set your desired temperature using TEMP or TEMP 3. Press FAN to select the fan speed in a range of AU100%, 4. Press ON/OFF to start the unit.

Setting Temperature

The operating temperature range for units is 60-86F (16-30C)/(68-82 F (20-28C) (depends on model). You can increase or decrease the set temperature in 1F (0.5C) increments.

HEAT Mode

Fig. 9 HEAT Mode

1. Press MODE to select the HEAT mode. 2. Set your desired temperature using TEMP or TEMP . 3. Press FAN to select the fan speed in the range of AU-100%.

NOTE: As the outdoor temperature drops, the performance of your units HEAT function may be affected. In such instances, we recommend using this air conditioner in conjunction with other heating appliances.

AUTO Mode

In AUTO mode, the unit automatically selects the COOL, FAN, or HEAT operation based on the set temperature.

Fig. 10 AUTO Mode

1. Press MODE to select AUTO. 2. Set your desired temperature using TEMP or TEMP 3. Press ON/OFF to start the unit.

NOTE: FAN Speed can not be set in the AUTO mode.

1

3

2

4

Turbo

1

3

2

4

Turbo

1

3

2

Turbo

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8

DRY Mode

Fig. 11 DRY Mode

1. Press MODE to select the DRY mode. 2. Set your desired temperature using TEMP or TEMP 3. Press ON/OFF to start the unit.

FAN Mode

Fig. 12 FAN Mode

1. Press MODE to select the FAN mode. 2. Press FAN to select the fan speed in the range of AU-100%. 3. Press ON/OFF to start the unit.

REMOTE CONTROL FUNCTIONS

Pressing ON/OFF

When the air conditioner is not in operation, the remote control displays the last set point and mode.

Press ON/OFF to start the unit. - The unit starts in the last operating mode and set point. The ON/OFF indicator appears.

Press ON/OFF to stop the unit. - All the indicator lights on the unit go out, and the remote control displays the set point and mode.

NOTE: If ON/OFF is pressed too soon after a stop, the compressor will not start for 3 to 4 minutes due to the inherent protection against frequent compressor cycling. The unit only emits an audible beep when the signals are received correctly.

Selecting an Operating Mode

Use OPERATING MODE to select one of the available modes.

Fig. 13 Operating Modes

Setting the Room Temperature Set Point

Press TEMP or TEMP to raise or lower the temperature. The unit confirms the signal receipt with a beep and the value of the set temperature appears on the display and changes accordingly. The temperature can be set between 62F (17C) and 86F (30C) in increments of 1F or 1C.

NOTE: In the COOLING mode, if the temperature selected is higher than the room temperature, the unit will not start. The same applies for the HEATING mode if the selected temperature is lower than the room temperature.

Selecting the Fan Speed

Fig. 14 Fan Speeds

Press FAN to select the fan speed.

NOTE: When the unit is on, the fan runs continuously in cooling or heating. When in heating, there might be situations where the fan will slow down or shut off to prevent cold blow.

1

3

2

Turbo

1

3

2 Turbo

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage.

Handle the controller with care and avoid getting it wet.

CAUTION

AUTO LOW MED HIGH

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9

Selecting the Up-Down Airflow Louver Position To optimize comfort, the horizontal louver should be adjusted to the desired position.

When COOLING Adjust the up-down airflow louver downwards or horizontally (see Fig. 15).

Fig. 15 Cooling Airflow (size 12)

Fig. 16 Cooling Airflow (sizes 18-58)

When HEATING Adjust the updown airflow louver vertically (see Fig. 17).

Fig. 17 Heating Airflow (size 12)

Fig. 18 Heating Airflow (sizes 18-58)

The horizontal updown airflow louvers can be adjusted by pressing DIRECT on the remote controller. Press SWING to set the louvers to a stationary position or to move continuously. The updown airflow louver position is stored in the settings, however it is deactivated when the TURBO or MANUAL settings are set, or when a power interruption takes place.

Air Direction Press DIRECT repeatedly to choose one of the updown airflow louver positions. Every time DIRECT is pushed, the specific louver swings 30 degrees.

In the COOLING, DEHUMIDIFICATION, and FAN ONLY modes, the updown airflow louver swings in the cooling range. In the HEATING mode, the louver swings in the heating range. NOTE: Always use the remote controller to adjust the updown airflow louver position, otherwise abnormal operation may occur. If the horizontal louver is manually adjusted out of its range, power the unit off and then back on again.

Auto Swing

For automatic horizontal updown airflow louver swing, push SWING.

Fig. 19 Louver Up-Down Swing (size 12)

Fig. 20 Louver Up-Down Swing (sizes 18-58)

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Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

10

Selecting RightLeft Direction of the Louver

The right-left louvers can be adjusted manually to direct the airflow to achieve optimal comfort in the space. A knob can be found on the right side and the left side of the louvers.

Fig. 21 Louver Right-Left (Size 12)

Fig. 22 Louver Right-Left (Sizes 18-58)

AIRFLOW SELECTION SIZE 12

1. Open the front panel.

2. Make the airflow selection that best suits you. When setting the air flow selection, use the Dual Air Flow icon (see Fig. 23).

Fig. 23 Dual Air Flow

NOTE: The air conditioner automatically determines the appro- priate blowing pattern based on the operating mode or situation.

Table 1 Operating Mode

Fig. 24 Air Blows from Upper and Lower Outlets

Air is blown from the upper air outlet during the DRY mode, so cold air does not come into direct contact with people.

Do not adjust the updown airflow louver by hand. When adjusting by hand, the mechanism may not operate properly or condensation may drip from the air outlets.

CAUTION

OPERATING MODE COOL MODE HEAT MODE

Situation

When the room totally cools, or when one hour has passed since turning on the air condi- tioner

At operation start or other times when the room is not totally cooled.

At times other than below (normal time)

At the start or when the air temp. is low.

Blowing Pattern

So air does not come into direct contact with people, air is blown from the upper air outlet, and the room temp. is equalized.

Air is blown from the upper and lower air outlets for high speed cooling during the COOL mode, and for filling the room with warm air during the HEAT mode (see Fig. 18).

To keep air from coming into direct contact with occupants, air blows from the upper air outlet.

Before opening the front panel be sure to stop the operation and turn the breaker OFF. Do not touch the metal parts on the inside of the indoor unit, as it may result in injury.

CAUTION

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11

When Setting the Air Outlet Selection Switch to Single Air Flow

Fig. 25 Single Air Flow Regardless of the operating mode or situation, air blows from the

upper air outlet.

Use this switch when you do not want air coming from the lower air outlet; for example while sleeping.

NOTE: Lower air outlet only available on size 12.

Timer Function

TIMER ON (to start the unit) and TIMER OFF (to stop the unit) can be used separately or together.

Timer ON Only

This function allows the unit to start automatically at the set time. The TIMER ON function can be set while the unit is on or off.

Unit On

1. Press TIMER ON to initiate the auto-on time sequence. The set time is displayed in the remote control display. Every time TIMER ON is pressed, the time increases by 30 minutes, up to 10h. It increases by 60 minutes, afterwards, until the time setting reaches 24h.

2. When the TIMER ON is set, the TIMER light on unit illuminates. The unit continues to run at the set time.

Unit Off

1. Set the timer described in the UNIT ON section. The unit starts at the set time.

2. Adjust the TIMER ON settings to 0.0 to cancel this option.

Timer OFF Only

This function allows the unit to stop automatically at the set time. The timer can be set while the unit is on or while it is off.

Unit On

Press TIMER OFF to initiate the auto-off time sequence. The set time appears on the remote control display. Every time TIMER OFF is pressed, the time increases by 30 minutes, up to 10h. It increases by 60 minutes, afterwards, until the time settings reach 24h.

When the TIMER OFF is set, the timer light on the unit illuminates and the unit turns off automatically at the set time.

Unit Off

1. Set the TIMER OFF as described in the UNIT ON section. The TIM- ER display on the unit illuminates and the unit remains off.

2. Adjust the TIMER ON settings to 0.0 to cancel this option.

Timer ON and Timer OFF

Use both functions to program the unit to turn on and shut off at specified times.

Unit Off

1. Set TIMER ON as previously described. 2. Set TIMER OFF as previously described. The unit starts

automatically at the set TIME ON and turns off at the set TIME OFF.

Unit On

1. Set TIME OFF as previously described. 2. Set TIME ON as previously described. The unit turns off

automatically at the set TIME OFF and turns on at the set TIME ON.

SLEEP Mode

SLEEP mode is used to conserve energy. The mode can be used when the unit is in the COOL, HEAT or AUTO mode only.

HEATING Mode

Same as the COOLING mode however the set points are lowered by 1.8F (1C).

COOLING Mode

Push SLEEP. After 1 hour the set point raises by 1.8F (1C). After another hour, the set point raises by another 1.8F (1C) and the fan runs in a low speed. The unit shuts off 5 hours after setting the SLEEP mode. SLEEP mode cancels if either MODE, TEMP, FAN, TIMER, or ON/ OFF on the remote control is pressed.

TURBO Mode

Use TURBO to cool or heat the room rapidly.

1. Press TURBO. An audible beep is heard if the indoor unit supports this function. The fan runs on super high speed. The TURBO mode terminates automatically 20 minutes after selecting TURBO.

2. To cancel TURBO, select TURBO mode again. When the TURBO mode terminates, the unit reverts to the original setting.

Clean Mode (Available only on sizes 18 to 24)

Press CLEAN to activate or deactivate the selfcleaning function. Under this function, the air conditioner automatically cleans and dries the evaporator. The cleaning cycle takes 16 minutes, after which the unit turns off automatically. Pressing CLEAN in the middle of the cycle cancels the operation and turns off the unit. This function can be activated only in the COOL or DRY mode.

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12

SILENCE Mode

NOTE: The SILENCE Mode (SLC) is not available on this model.

LED Light

Press LED to turn the display light on and off.

Resetting the Remote Control

If the batteries in the remote control are removed, the current settings will be canceled and the control returns to the initial settings and will be in standby mode. Push ON/OFF to activate.

Time Delay

If ON/OFF is pressed too soon after a stop, the compressor will not start for 3 to 4 minutes due to the inherent protection against frequent compressor cycling. The unit only emits an audible beep when the signals are received correctly.

Heating Features

If the unit is in the heating mode, there is a delay when the fan starts. The fan starts only after the coil is warmed up to prevent cold blow.

Auto Defrost Operation

In HEATING mode, if the outdoor coil is frosted, the indoor fan and outdoor fan turns off while the system removes the frost from the outdoor coil. The system automatically reverts to normal operation when frost is removed from the outdoor unit.

Auto Start

If the power fails while the unit is operating, the unit stores the operating condition, and the unit will start operation automatically under those conditions when the power is restored.

40MBFQ: Owners Manual

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13

CLEANING, MAINTENANCE AND TROUBLESHOOTING

Periodic Maintenance

Periodic maintenance is recommended to ensure proper operation of the unit. Recommended maintenance intervals may vary depending on the installation environment, e.g., dusty zones, etc. Refer to Table 2 on page 15.

Cleaning the Coil

Clean the coil at the beginning of each cooling season, or when necessary. Use a vacuum cleaner or a long-bristle brush to avoid damage to the coil fins.

Cleaning the Air Filters

Remove and clean the air filters once a month. A clogged air conditioner can reduce the cooling efficiency of your unit, and can also be bad for your health.

NOTE: If air filters show signs of excessive wear or are torn, they must be replaced. Contact your local dealer for replacement filters.

1. Open the front panel.

Fig. 26 Open the front panel

Fig. 27 Open the front panel

2. Remove the air filter.

Fig. 28 Remove the air filter

Fig. 29 Remove the air filter

Fig. 30 Remove the air filter

3. Remove the carbon filter. Hold the frames tabs and remove the four claws. The carbon filter can be renewed by washing it with water once every 6 months.

NOTE: The manufacturer recommends that the carbon filter be replaced every year.

ELECTRICAL SHOCK HAZARD

Failure to follow this caution may result in personal injury or death. Always turn off power to the system before performing any cleaning or maintenance to the system. Turn off the outdoor disconnect switch located near outdoor unit. Be sure to disconnect the indoor unit if on a separate switch.

CAUTION

EQUIPMENT DAMAGE/OPERATION HAZARD

Failure to follow this caution may result in equipment damage or improper unit operation.

Operating the system with dirty air filters may damage the indoor unit and could cause reduced cooling performance, intermittent system operation, frost build-up on indoor coil or blown fuses.

CAUTION

CUT HAZARD

Failure to follow this caution may result in personal injury. The coil fins are very sharp. Use caution when cleaning.

Always wear safety protection.

CAUTION

Air Inlet

Sizes 18-58

Air Outlet Selection Switch

Size 12

Sizes 18-58

Air filte

Sizes 18-58

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14

Fig. 31 Carbon Filter

4. Clean the air filter. A vacuum cleaner or pure water may be used to clean the air filter. If the dust accumulation is excessive, please use a soft brush and mild detergent to clean it and dry out in cool place.

IMPORTANT: The air-in side should face up when using vacuum cleaner. The air-in side should face down when using water.

5. Set the air filter and the carbon filter as they were and close the front panel. Operating the unit without the air filters may result in equipment damage or even failure as dust will accumulate inside the indoor unit.

Indoor Unit Front Panel

To clean the front panel on the indoor unit, wipe the outside with a soft, dry cloth.

Preparing for Extended Shutdown Period

Clean the filters and reposition them in the unit. Operate the unit in FAN ONLY mode for 12 hours to dry all internal parts. Turn the main power supply off and remove batteries from the remote control.

System Operation Recommendations

The items outlined in the following list help to assure proper system operation:

Replace both remote control batteries at the same time.

Point the remote control toward the unit display panel when transmitting a command.

Keep doors and windows closed while unit is operating.

Contact an authorized service representative if a problem arises that cannot be easily resolved.

Do not perform cleaning or maintenance activities while the unit is on.

Keep the display panel on the unit away from direct sunlight and heat as this may interfere with remote control transmissions.

Do not block air intakes and outlets on the indoor or outdoor units.

Energy Saving Recommendations

The following recommendations will add greater efficiency to the ductless system:

Select a comfortable thermostat setting and leave it at chosen setting. Avoid continually raising and lowering the setting.

Keep the filter clean. Frequent cleaning may be necessary depending on indoor air quality.

Use drapes, curtains or shades to keep direct sunlight from heating the room on very hot days.

Limit the units run time by using the TIMER function.

Do not obstruct the air intake on the front panel.

Turn on the air conditioning unit before the indoor air becomes too uncomfortable.

Carbon Filter

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage. When cleaning the front panel, do not use water hotter than 105F (40.6C) and do not pour water onto the fan coil.

Do not use abrasive or petroleum based cleaners as they may damage the front panel.

CAUTION

40MBFQ: Owners Manual

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

15

TROUBLESHOOTING

Refer to Table 3 before contacting your local dealer.

Table 2 Periodic Maintenance

* Increase frequency in dusty zones. Maintenance to be carried out by qualified service personnel. Refer to the Installation Manual.

Common Problems

Table 3 Common Problems

* Diagnostic lights are a combination of lights that will illuminate in the display area on the unit. They are a combination of the lights you see during normal operation.

INDOOR UNIT EVERY MONTH EVERY 6 MONTHS EVERY YEAR

Clean Air Filter* Replace Carbon Filter Change Remote Control Batteries

OUTDOOR UNIT EVERY MONTH EVERY 6 MONTHS EVERY YEAR Clean Outdoor Coil from Outside Clean Outdoor Coil from Inside Blow Air Over Electric Parts Check Electric Connection Tightening Clean Fan Wheel Check Fan Tightening Clean Drain Pans

PROBLEM POSSIBLE CAUSE SOLUTION

Unit/System Does Not Work

The circuit breaker has tripped or a fuse has blown.

Reset the circuit breaker or replace the fuse with the specified replacement fuse.

Power failure Restart the operation when the power is restored.

Diagnostic lights illuminate.* Call your service representative

Voltage is too low. Call your service representative.

Poor cooling performance

The filter is blocked by dust. Clean the air filter

Temperature is not set properly. Check the temperature and reset if necessary.

A window or door is open. Close the window or door.

The outdoor unit is obstructed. Turn the unit off, remove the obstruction and turn it back on.

The fan speed is too low. Change the fan speed selection.

The operation mode is in Fan instead of Cool. Change the operating mode to Cool or reset the unit.

Poor heating performance

The filter is blocked with dust. Clean the filter.

The temperature is set too low. Check the temperature and reset if necessary.

A window or door is open Ensure all the doors and windows are closed while operating the unit.

The outdoor unit is obstructed. Turn the unit off, remove the obstruction and turn the unit back on.

Unit stops during operation The OFF timer is not operating correctly. Restart the operating mode.

Diagnostic lights illuminate Call a service representative for service

2021 Carrier. All rights reserved.

A Carrier company Edition Date: 07/21 Catalog No: OG-40MBFQ-05

Replaces: OG-40MBFQ-04

40MBFQ: Owners Manual

Manufacturer reserves the right to change, at any time, specifications and designs wit

Manualsnet FAQs

If you want to find out how the 40MBFQ Carrier works, you can view and download the Carrier 40MBFQ Owner's Manual on the Manualsnet website.

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The Owner's Manual should include all the details that are needed to use a Carrier 40MBFQ. Full manuals and user guide PDFs can be downloaded from Manualsnet.com.

The best way to navigate the Carrier 40MBFQ Owner's Manual 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 40MBFQ Owner's Manual consists of sections like Table of Contents, to name a few. For easier navigation, use the Table of Contents in the upper left corner.

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