Carrier 40GXM user guide manual

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40GXC / 38GXC 40GXQ / 38GXQ 40GXM / 38GXM

High---Wall Duct Free Split System

38--- 40GXC(Q) Sizes 018 and 024

38-- -40GXM Sizes 018, 024 and 030

Owner’s Manual

TABLE OF CONTENTS

PAGE

SAFETY PRECAUTIONS 2.....................................................................................

GENERAL 2.................................................................................................

PART NAMES 3..............................................................................................

UNIT DISPLAY PANELS 4....................................................................................

REMOTE CONTROL 5........................................................................................

REMOTE CONTROL FUNCTIONS 6--10.........................................................................

CLEANING, MAINTENANCE AND TROUBLESHOOTING 11 -- 12...................................................

NOTE TO EQUIPMENT OWNER:

Please read this Owner’s 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:_________________________________ ________________________________________________

SAFETY PRECAUTIONS

WARNING

PERSONAL INJURY, DEATH, OR PROPERTY

DAMAGE HAZARD

Failure to follow this warning could result in personal injury, death, or property damage.

Read and follow all instructions and warnings, including labels shipped with or attached to unit before operating your new air conditioner.

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

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

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

CAUTION is used to identify unsafe practices which would 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.

PERSONAL INJURY, DEATH AND / OR PROPERTY

Failure tofollow this warning could result in personal injury, death or property damage.

Improper installation, adjustment, alteration, service, maintenance,orusecan causeexplosion,fire, electricalshock, or other conditions which may cause personal injury or property damage.

Consult a qualified installer, service agency, your distributor orbranchforinformationorassistance. The qualifiedinstaller or service agency must use factory--authorized kits or accessories when modifying this product.

WARNING

DAMAGE HAZARD

GENERAL

The high wall fan coils, when matched with an outdoor condensing unit, will cool or heat, filter and dehumidify the air in the room to provide maximum comfort.

IMPORTANT: The high wall system should be installed by authorized personnel only; using approved tubing and accessories. If technical assistance, service or repair is needed, contact the installer or call 1--800--227--7437.

The high wall 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 high wall fan coil unit has five basic operating modes.

S Fan only S Auto (heat pump models only) S Heating (heat pump models only) S Cooling S Dehumidification (DRY)

Fan Only

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

Auto

In Auto mode, the system will automatically cool or heat the room according to the user--selected set point.

Heating

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

Cooling

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

Dehumidification (DRY)

In Dehumidification mode, the system dries, filters and slightly cools room air temperature. Use of this mode does not take the place of a dehumidifier.

Remote Control

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

PART NAMES

9k & 12k Display Close Up

COOL

TEMPERATURE

RUN

SIGNAL

DEHUMIDIFY

HEAT

RECEIVING

WINDOW

*18k & 24k Display Close Up

RUN

TEMPERATURE

HEAT INDICATOR

COOL INDICATOR

Front Panel Frame

Display Panel (shown for 40GXM units)*

Front Panel

Air Filter

Horizontal Airflow Louver

Manual Adjustable Vertical Airflow Louve

Remote Control

Room Temperature Sensor

Inter-Connecting Tubing

Control and Power Wiring to Indoor Unit

Service Valves

DEHUMIDIFY MODE

INFRARED SIGNAL

RECEPTOR

A10474

Indoor/Outdoor Unit

AUTO

FAN

OPER

HOUR

ON/OFF

FAN

TIMER ONCLOCK

TIMER OFF

TEMP

DRY COIL

TURBO SLEEP LIGHT

Remote Control Display

ON/OFF Button

MODE Button

Setpoint, Clock, Timer UP (+) and Down (-) Buttons

Fan Speed

Horizonal Louver Swing Button

Clock Button

Timer ON Button

Dry Coil Button

Temperature Button

Timer OFF Button

Turbo Mode Button

Sleep Mode Button

Light Button to Turn ON or OFF Display on Front Panel

A09625

Remote Control

UNIT DISPLAY PANELS

NOTE: The display panel on the indoor unit can be turned on or off using the remote control . Press the LIGHT button to turn the display on and off. Some of the functions will appear on the display panel, on the remote control, or both.

On 40GXM High Wall Units:

RUN

TEMPERATURE

On 40GXC(Q) High Wall Units:

HEAT INDICATOR

COOL INDICATOR

HEAT INDICATOR

TEMPERATURE*

COOL INDICATOR

DEHUMIDIFY MODE

RUN

DEHUMIDIFY MODE

INFRARED SIGNAL

RECEPTOR

A09626

INFRARED

SIGNAL

RECEPTOR

A08297

* The temperature readout is either setpoint or room temperature and will be replaced by an error code if there is a malfunction.

Remote Control Display

TRANSMISSION INDICATOR: Illuminates when remote control transmits a signal to the indoor unit.

ON/OFF INDICATOR: This symbol appears when the unit is turned on by the remote control, and is not displayed when the unit is turned off.

FAN SPEED DISPLAY: Indicates the set fan speed. AUTO is displayed when fan is set to AUTO mode.

MODE DISPLAY: Indicates the current operation mode “AUTO”, “COOL”, “DRY”, “FAN ONLY”, or “HEAT”

AUTO

COOL

DRY

FAN

HEAT (only for cooling and heating unit)

SLEEP DISPLAY: Indicatesunit is running in SLEEP mode.

FAN

A09628a

AUTO

OPER

HOUR

ON/OFF

A09627

TEMPERATURE DISPLAY: Temperature setting from 61_F(16_C) to 86_F(30_C) will be displayed. If FAN mode is selected, there will be no temperature displayed.

CLOCK DISPLAY: Indicates the current time (0 to 24 hours).

CLOCK INDICATOR: Displayed with time and is not displayed when setting ON/OFF timer.

TIMER ON / TIMER OFF DISPLAY: ON is displayed if TIMER ON is set. OFF is displayed if TIMER OFF is set. ON OFF is displayed if both ON and OFF timers are set.

TURBO DISPLAY: Indicates unit is running in TURBO

mode.

DRY COIL DISPLAY: Indicates unit is running in DRY COIL mode where the fan continues to run after the unit is shut off to dry the coil.

TEMPERATURE DISPLAY: Indicates if room temperature or set point temperature is being displayed on the front panel.

SWING DISPLAY: Indicates that louvers are moving continuously for better air distribution.

LIGHT DISPLAY: Indicates if LED display on the front panel is illuminated or not.

LOCK DISPLAY: Indicates if remote control is locked or not. (Available on 40GXC(Q) models only)

NOTE: Symbolsshown in this manual are for the purpose of demonstration. During actual operation, only the relevant symbols are displayed.

REMOTE CONTROL

* Display shown is for 40GXM units. For 40GXC(Q) units, LED display is in upper right corner.

CAUTION

EQUIPMENT DAMAGE HAZARD

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

NOTE: The remote control is set from factory to display temperatures in _F. If _C is desired, turn the remote OFF and then press “MODE“ and “--” buttons on the remote simultaneously.

IMPORTANT: The remote control can operate the unit from a

distance of up to 25 ft. (7.6 m) as long as there are no obstructions.

This is one way communication only (from remote control to fan

coil). The remote control can perform the following basic functions:

S Turn the system ON and OFF S Select operating mode S Adjust room air temperature set point and fan speed S Adjust airflow direction

Refer to the Remote Control Function section for detailed description of all the capabilities of the remote control.

BATTERY INSTALLATION

Two AAA 1.5 v alkaline batteries (included) are required for operation of the remote control.

To install or replace batteries :

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

2. Remove old batteries if you are replacing the batteries.

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

4. Replace battery compartment cover.

AUTO

FAN

OPER

HOUR

ON/OFF

FAN

TIMER ONCLOCK

TIMER OFF

DRY COIL

TEMP

TURBO SLEEP LIGHT

NOTE: 1. When replacing batteries, do not use old batteries or

mix different types of batteries. 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 averagebattery 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.

SET THE CLOCK

Before you start operating the air conditioner, set the clock on the remote control as outlined below. The clock panel on the remote controller will display the time regardless of whether the air conditioner is in use or not.

Initial Setting of the

After batteries are inserted in the remote control, the clock panel will display ”12:00”.

1. Push the CLOCK button once;

2. Push the “+” or “--” button. Each time you press the button, the time moves forward or backward by one minute depending on which button you press. If you push the “+” or “--” buttons continuously, the time adjusts in increments of 10 minutes.

3. When the right time is achieved, press the CLOCK button once to set the time. The

4. To readjust the Clock, Press the CLOCK button on the remote. The

NOTE: Note: The time of the CLOCK must be set before the AUTO--TIMER function will operate.

Clock:

will flash

will stop flashing.

will flash. Repeat steps 1 through 3.

CAUTION

A09647

A08299

UNIT OPERATION HAZARD

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

Static electricity or other factors (voltage fluctuations) can cause the remote control clock to reset. If your remote control is reset (the time of ”12:00” flashing), set the clock before starting the unit.

Remote Control Operation -- Quick Start

NOTE: When transmitting a command from the remote control to

the unit, be sure to point the remote control toward the LED display on the front panel of the unit. The unit will confirm receipt of a command by sounding an audible beep.

1. Turn the unit on by pushing the “ON/OFF” button.

2. Select the desired mode by pushing the “MODE” button.

S 77_F(25_C) will be displayed on display panel. S Unit will run in FAN ONLY mode if return air temperat-

ure is between 68_F(20_C) and 77_F(25_C).

S Unit will run in HEATING if return air temperature is

less than 68_F(20_C).

S Unit will run in COOLING if return air temperature is

greater than 77_F(25_C).

S Fan speed will be set to AUTO S SWING will be on.

AUTO

COOL

DRY

FAN

HEAT (only for cooling and heating unit)

A09628

NOTE: Cool only units have no heat mode. NOTE: On a multi--split system (38/40GXM), simultaneous

cooling and heating is not allowed. Setting the mode (cool or heat) on the first indoor unit (unit that is turned on first) will determine the allowable mode on the other fan coils. If there is a mode conflict, E7 error will be displayed on the unit with the conflict. Turn unit off and select allowed mode.

3. Select the temperature set point by pointing the control toward the unit and pressing the “TEMP” and then the “+” or “--” buttons until the desired temperature appears on screen.

4. Select the desired fan speed by pressing the “FAN” button.

NOTE: If unit is operating in Dry mode, low fan speed will be displayed and the fan speed cannot be changed.

5. Set the airflow direction. When the unit is turned on, the louvers default to the cooling or heating position. The user

can adjust the default louver position by pushing the ”SWING” button. The louver will start to swing. If a sta-

tionary position is desired, push the

“swing” button.

REMOTE CONTROL FUNCTIONS

The remote control is the interface between the user and the high--wall systems. Commands are entered by the user to control the system. Any command that has been entered with the remote control will remain in the memory until it is changed by the user or the batteries are replaced.

NOTE: Settings can be locked by pushing the “+” and “--” buttons simultaneously. The lock indicator will be displayed on remote control.

NOTE: While the remote control is locked, no commands can be entered. To unlock remote control, press the “+” and “--” buttons simultaneously.

When entering commands, point the remote control in the direction of the LED display on the front panel. The appear for a short period of time on the remote control when the command is entered. The unit will emit an audible beep when the signals are received correctly.

OPER

HOUR

ON/OFF

On/Off Button

indicator will

A09635

Emergency Operation

If the remote control is lost, damaged, or the batteries are exhausted, the AUTO button on the unit can be used to temporarily operate the unit.

Open the front cover panel and press the AUTO button once briefly when the system is off.

To stop emergency operation, push the AUTO button once. The emergency operation can also be stopped by pushing the “ON/OFF” button.

AUTO button

A08300

NOTE: The above drawing indicates location of the AUTO button on 40GXM units. On 40GXC(Q) units, the AUTO button is located on the back of the front cover.

The following occurs when the AUTO button is pushed:

HOUR

ON/OFF

A09648

When the air conditioner is not in operation, the remote control will display the last set point and time.

S Press the On/Off button to start the unit.

-- The unit will start in the last operating mode and set point. The “OPER” indicator will appear. The “RUN” indicator on the display panel turns green.

S Press button On/Off to stop the unit.

-- The “RUN” indicator light on the display panel will turn red and the remote control will display the setpoint and time. “OPER” will disappear.

NOTE: If the On/Off button is pressed too soon after a stop, the compressor will not start for 3 minutes due to the inherent protection against frequent compressor cycling.

Selecting an Operating Mode

NOTE: On a multi--split system (38/40GXM), simultaneous cooling and heating is not allowed. Setting the mode (cool or heat) on the first indoor unit (unit that is turned on first) will determine the allowable mode on the other fan coils. If there is a mode conflict, E7 error will be displayed on the unit with the conflict. Turn unit off and select allowed mode.

Use the “MODE” button to select one of the available modes.

A09641 /A09628b

The selected mode will be displayed on the remote control and the appropriate light will illuminate on the display panel. When the unit is in AUTO, 77_F(25_C) will show on the display panel. There is no icon for “FAN ONLY” on the display panel.

Turb o M od e

The desired setpoint, either in heating or cooling, can be achieved faster if TURBO mode is used. After selecting the “HEAT” or “COOL” mode button, push the “TURBO” button. This will force the unit to run at super high speed. When the setpoint is satisfied, push the “TURBO” button again. The unit will run at the selected fan speed.

When TURBO mode is running, the following is displayed on the remote control:

OPER

HOUR

ON/OFF

Setting the Room Temperature Set Point

Press the “TEMP” button and then, within five (5) seconds, press the “+” and “--” buttons to select the desired temperature.

The unit will confirm signal receipt with a beep and the value of the set temperature is displayed on the remote and on the front panel LED display.

The temperature can be set between 61_F(16_C) and 86_F (30_C).

NOTE: In Cooling mode, if the temperate 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.

Displaying Setpoint or Room Temperatures on Front Panel:

The setpoint temperature or room temperature can be displayed on the front panel. Only setpoint temperature is displayed on the remote.

HOUR

ON/OFF

A09638

When the “TEMP” button is pushed once, the temperature indicator (without thermometer) is displayed. This indicates that the setpoint temperature is displayed on the front panel.

When the “TEMP” button is pushed a second time, a thermometer is displayed inside the temperature indicator. This indicates that the room temperature is displayed on the front panel.

Selecting the Fan Speed

A09636

Using Dry Coil Function

When operating in humid areas, hi--wall units have a DRY COIL function that will allow the indoor fan to run for a pre--determined amount of time after the unit is turned off (cooling or dry modes) to ensure that additional moisture is removed from coil. Push the “DRY COIL” button to enable this feature. This will be displayed on remote control.

OPER

HOUR

ON/OFF

A09637

To deactivate this feature, push the “DRY COIL” button again.

Low / Med / High

indicator

FAN

AUTO

OPER

HOUR ON/OFF

AUTO

A09649

The fan speed can be selected by pressing the “FAN” button. NOTE: When the unit is on, the fan will run 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.

Selecting the Horizontal Direction Louver Position

When the unit is turned on, the louvers default to the cooling or heating position.

If the louver position is not providing adequate comfort due to room layout or where people are gathered, two options are available to correct the situation:

Setting the louvers in a stationary position (other than default for heating and cooling):

The stationary position can be one of five (5) default positions or a position selected by user.

To change the louver position, press the once. The

icon is displayed on the remote.

OPER

HOUR

ON/OFF

“SWING“ button

A09640

When the is displayed, the louver will swing continuously between positions 1 and 5 as shown below.

01 2 3 4

OFF

5678

A09634

If the “SWING” button is pushed again, the horizontal louver will stop at the position it was in when the was pressed. If position 1 through 5 is desired, push the

button repeatedly until the desired position (1 through 5) is displayed on remote control.

Setting the lovers to move continuously:

This setting allows the louvers to move continuously between either positions 1 through 5, or between positions 6, 7, and 8.

Push the

button once to have louvers swinging between

positions 1 and 5. If position 6, 7, or 8 is desired, push the button repeatedly until the desired position is displayed on the remote.

NOTE: Always use the remote control to adjust the horizontal louver position otherwise, abnormal operation may occur. If this occurs, turn the unit off and then on again.

Sometimes, in the heating mode, when the button is pushed, the louverswill not start moving right away. This is due to the fact that the fan will not start running until the coil temperature is warm enough to prevent discomfort to theuserbyblowingcoldair.

button

”SWING”

Selecting Vertical Direction of the Louver

The vertical louvers can be adjusted manually to direct the airflow to achieve the optimal comfort in the space.

A07543

Timer Function

TIMER ON (to start the unit) and TIMER OFF (to stop the unit) can be used separately or together. The clock on the remote control must be set before using this function.

Timer ON only

OPER

HOUR

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

To set the TIMER ON function, perform the following:

1. Push the “TIMER ON” button once.

2. The clock indicator

and time will not be displayed on the remote control. The default “TIMER ON” time (first time function is used) or the last time setting will be displayed and “ON” will flash.

3. Push the “--” or “+” within 5 seconds until the desired on time is displayed.

NOTE: Pressing the “--” or “+” will decrease or increase the time in 1 minute increments. Pressing the “--” or “+” continuously will decrease or increase the time in 10 minute increments.

4. Push the “TIMER ON” again. The “ON” icon will stop blinking and the time at which the unit will start is set. The

clock indicator

and the time will be displayed again.

The “TIMER ON” time will be stored in memory indefinitely until it is cancelled by the user by pushing the “TIMER ON” button or the remote control batteries are replaced.

If the unit is running and the “TIMER ON” set time is reached, the unit will continue operating normally.

NOTE: When the unit is shut off by the user using the “ON/OFF” button, and if the “TIMER ON” is set, the following will be displayed on the remote control.

-- Set Point

-- T i m e

-- Clock indicator

next to time indicates TIMER ON is set. On the display panel, the operation light will turn red. When the “TIMER ON” set time is reached, the display on the remote does not change, but the unit will run as indicated by the operation light on the front cover turning green. To get display on the remote, push the “ON/OFF” button once.

Only ON

is displayed.

A09639

Timer OFF only

Sleep Mode

OPER

Only OFF

HOUR

OFF

is displayed.

A09642

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

To set the “TIMER OFF” function, perform the following:

1. Push the “TIMER OFF” button once.

2. The clock indicator

and time will not be displayed.

“OFF” will be flashing.

3. Push the “--” or “+” button within 5 seconds until the desired ON time is displayed.

NOTE: Pressing the “ --” or “+” will decrease or increase the time in 1 minute increments. Pressing the “--” or “+” continuously, will decrease or increase the time in 10 minute increments.

4. Push the “TIMER OFF” button again, the “OFF” icon will stop blinking and the time at which the unit will turn off is

set. The clock indicator

and the time will be displayed

again.

The “TIMER OFF” time will be stored in memory indefinitely until is is cancelled by pushing the the “TIMER OFF” button or the batteries are replaced in the remote control.

If the unit is running and the “TIMER OFF” set time is reached, the unit will turn off and the operation indicator light on the front panel will turn red. The display on the remote control will remain the same as when the unit was running. To turn the unit on again, push the “ON/OFF” button twice. The operation indicator light on the front panel will turn green.

Timer ON and Timer OFF

OPER

HOUR ON/OFF

ON/OFF will be displayed

A09643

Use both functions as described in “TIMER ON” and “TIMER OFF” sections to program the unit to turn on and shut off at specified times. Times will be stored in memory until cancelled by user or the remote control batteries are replaced.

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

Cool Mode

-- Push the SLEEP button. The SLEEP display will appear on the remote control.

OPER

HOUR

ON/OFF

A09644

-- After 1 hour the set point will be raised by 1.8_F(1_C).

-- After another hour, the set point will be raised by another

1.8_F(1_C)andthefanwillruninlowspeed.

-- The SLEEP mode will be cancelled when the SLEEP button is pushed again.

Heat Mode

-- Same as cooling mode but set points will be lowered by

1.8_F(1_C) and the HEAT icon will disappear from the display panel.

Time Delay

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

Heating Features

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

Defrost Operation

In heating mode, if the outdoor coil is frosted, the indoor fan and outdoor fan will turn off while system removes the frost on the outdoor coil. “H1” will be displayed on the display panel on the front cover of the unit.

The system will automatically revert to normal operation when frost is removed from the outdoor unit, and “H1” will disappear.

Auto Start

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

CLEANING, MAINTENANCE AND TROUBLESHOOTING

CAUTION

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 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.

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 1.

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.

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.

Air Filters

Remove and clean the air filters once a month. 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 front panel on unit.

2. Pull filters down to remove.

3. Vacuum filters.

4. Clean with warm water.

5. Shake filter to remove excess water and dry thoroughly.

6. Replace filter by sliding into rack until filter snaps in place.

7. Close front panel on unit.

CAUTION

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage. When cleaning the front panel, do not use water hotter than 105_F (40.56_C) and do not pour water onto the fan coil. Do not use abrasive or petroleum based cleaners as they may damage the front panel.

Indoor Unit Front Panel

To clean the front panel on the indoor unit, wipe the outside with a soft, dry cloth. If necessary, a mild liquid detergent can be applied and wiped off with a 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 main power supply off and remove batteries from the remote control.

System Operation Recommendations

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

S Replace both remote control batteries at the same time. S Point the remote control toward the unit display panel when

transmitting a command.

S Keep doors and windows closed while unit is operating. S Contact an authorized service representative if a problem arises

that cannot be easily resolved.

S Do not perform cleaning or maintenance activities while unit

is on.

S Keep display panel on unit away from direct sunlight and heat

as this may interfere with remote control transmissions.

S 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 ductfree system:

S Select a comfortable thermostat setting and leave it at chosen

setting. Avoid continually raising and lowering the setting.

S Keep unit filter clean. Frequent cleaning may be necessary de-

pending on indoor air quality.

S Use drapes, curtains or shades to keep direct sunlight from

heating room on very hot days.

S Do not obstruct air intake on front panel. S Turn on air conditioning before indoor air becomes too un-

comfortable.

Troubleshooting

Refer to Table 2 before contacting your local dealer.

Table 1—Periodic Maintenance

INDOOR UNIT EVERY MONTH EVERY 6 MONTHS EVERY YEAR

Clean Air Filter*

Change Remote Control Batteries

OUTDOOR UNIT EVERY MONTH EVERY 6 MONTHS EVERY YEAR

Clean Outdoor Coil from Outside Clean Outdoor Coil from Inside† BlowAirOverElectricParts† Check Electric Connection Tightening† Clean Fan Wheel† Check Fan Tightening† Clean Drain Pans†

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

Table 2—Troubleshooting

PROBLEM POSSIBLE CAUSE SOLUTION

Unit/System Does Not Work • The circuit breaker has tripped or a fuse

Cooling is Not Working Properly

Heating is Not Working Properly

Unit Stops During Operation • The Off timer is not operating correctly.

has blown.

• Power failure.

• Error code is displayed

• Voltage is too low.

• The filter is blocked with dust.

• Temperature is not set properly.

• A window or door is open.

• The outdoor unit is obstructed.

• The fan speed is too low.

• The operation mode is in Fan instead of

Cool.

• The filter is blocked with dust.

• Temperature is set too low.

• A window or door is open.

• The outdoor unit is obstructed.

• Error code is displayed

S S S S S S

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

• Restart operation when the power is restored.

• Call your service representative.

• Clean the air filter.

• Check the temperature and reset if necessary.

• Close the window or door.

• Remove the obstruction.

• Change the fan speed selection.

• Change the operating mode to Cool or reset the

unit.

• Clean the air filter.

• Check the temperature and reset if necessary.

• Close the window or door.

• Remove the obstruction.

• Restart the operating mode.

• Call your service representative.

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

Printed in U.S.A. Edition Date: 10/10

Catalog No: OM38 ---40GXM---02

R e p l a c e s: O M 3 8 --- 4 0 G X M --- 0 1

Carrier 40GXM user guide manual

Specifications and Main Features

Frequently Asked Questions

User Manual