Carrier Harmony 53VMCT 18C-24C-30C-36C, Harmony 53VMCT 18H-24H-30H-36H Owner's Manual

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Rev. (0) - 2013

220-240V ~ 50Hz 1Ph

Quality

Management System

ISO 9001 : 2008

Certicate No.: QS-5519HH

Enviromental

Management System

ISO 14001 : 2004

Certicate No : 12 104 30334 TMS

Safety

Management System

BS OHSAS 18001 : 2007

Certicate No : 12 116 30334 TMS

OWNER’S MANUAL

Carrier is committed to continuously improving its products according to national and international standards to ensure the highest quality and reliability standards, and to meet market regulations and requirements.

All specications subject to change without prior notice according to Carrier policy of continuous development.

03502826

Harmony

Floor / Under Ceiling Split Air Conditioners

53VMCT 18C-24C-30C-36C Cool Only

53VMCT 18H-24H-30H-36H Heat Pump

Floor / Under-Ceiling Split Systems

Harmony

220-240V ~ 50Hz 1Ph

Harmony Design

Efficient Operation

Efficient Anti-dust Filters

LED Display

Super Quiet

Smart LCD Wireless Control

Auto Restart Function

Defrost Protection

Smart Airow

Independent Dehumidication

Horizontal Air Flow Manual Direction

Auto Fan Speed

Vertical Air Flow Auto Swing

Auto Mode

Efficient AMS

Efficient Fans

Efficient Coils

Inner Groove Copper Tubing

Tropical Compressor

IAQ

AMS

Auto

3 Minutes Time Delay

Anti-Freezing Protection

High Temp. Protection

Cold Draft Protection

Min.

High

Temp.

Protect

Anti

Freezing

Self diagnostic function

Easy Flexible Installation

Easy Fast Service & Maintenance

Refrigerant Leak Detection

Sleep Function

Timer Functions

Washable Air Filters

Thank you for selecting Carrier

Air Conditioner

Harmony

split system is the optimum air conditioning solution for places which require floor or under-ceiling installations, elegant appearance and ultimate comfort combined with efficient and quiet operation, optimum air distribution, and efficient Indoor Air Quality (IAQ).

Harmony is the very latest in slim line technology.

CONTENTS

PAGE NO.

GENERAL INFORMATION

SYSTEM SAFETY PROTECTIONS

TIPS OF ENERGY SAVING AND OPTIMUM COMFORT

SPLIT SYSTEM DESCRIPTION

CONSIDERATIONS FOR REMOTE CONTROL

DESCRIPTION OF LEDS & EMERGENCY BUTTON

USE OF REMOTE CONTROL

AIR FILTERS CLEANING

INDOOR COIL CLEANING

10.

PERIODICAL CHECKS

11.

CONSIDERATIONS BEFORE A LONG SHUTDOWN PERIOD OF AIR CONDITIONER

12.

OPERATION TIPS

13.

TROUBLE SHOOTING TIPS

( 1 )

1. GENERAL INFORMATION

PRECAUTIONS

Installing and servicing of air conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install or service this equipment.

Untrained personnel can perform basic maintenance function such as cleaning coil and filters. Trained service personnel should perform all other operations.

When working on air conditioning equipment, observe precautions in the literature, tags and labels attached to the unit.

WARNINGS

• The operating voltage of electrical power supply should be within the voltage mentioned on unit

nameplate data.

• The capacity of electrical kWh counter should be larger than the operating currents required for

air conditioner(s) and any other electrical domestic appliances in use simultaneously from the same supply.

• The installation of electrical distribution box after the electrical KWH counter is necessary to

properly distribute the electrical loads. The electrical distribution box should be equipped with circuit breakers according to the electrical loads. For each installed air conditioner, a separate circuit breaker with its own overload should be installed on the electrical distribution box.

• The installation of two-pole automatic circuit breaker is necessary to operate the air conditioner.

The circuit breaker must be installed to be far away from any flammable materials (curtains…etc.). The circuit breaker size must be suitable for air conditioner.

• Disconnect the electrical mains supply prior to any maintenance operations or prior to handling

any internal unit parts.

• The manufacturer declines any liability for damage resulting from modifications or errors in the

electrical or refrigerant connections, made during the installation, or from the improper use of this equipment. This will void the unit warranty immediately.

• Failure to observe electrical safety codes may cause a fire hazard in case of short circuits.

• This system will only work safety and correctly, if installed and tested by qualified personnel.

• Do not open the electronic remote controller to avoid possible damage. In case of malfunction

contact a qualified service engineer.

• The unit contains rotating equipment (fan). Ensure that this is out of reach for children.

• Be conscious of the room temperature and general comfort, particularly when this is used near

children, senior or handicapped people.

• For correct use, the air conditioner must operate within the temperature limits indicated in the

table “Operating Limits” included in the installation manual. Incorrect use of the system outside these limits may cause malfunction and dripping water.

• Controller batteries contain polluting elements. When exhausted, they must be disposed of in

accordance with local requirements.

• Do not switch off the split system by disconnecting the electric power supply.

The system must always be switched off using the remote control.

( 2 )

2. SYSTEM SAFETY PROTECTIONS

The air conditioner is equipped with complete safety protections to ensure safe operation of air conditioner at different operating conditions :

2.1 Safety protections for Cool Only System

Auto Restart Feature with backup memory. When the power failure is happened during the air conditioner operation, the microprocessor of printed circuit board will memorize the operation setting. After the power is recovered, the air conditioner operates automatically ( without remote control after elapse of compressor time delay ), according to the previous operation settings.

3 (Three) minutes time delay between compressor turning off and turning on for compressor protection against cycling.

Smart self-diagnostic function for malfunctions detection for fast easy service and maintenance.

Smart refrigerant leak detection by sensitive sensors mounted on the indoor and outdoor coils for fast easy service and maintenance.

2.2 Safety protections for Heat Pump System

3 (Three) minutes time delay between compressor turning off and turning on for compressor protection against cycling.

Anti-freezing protection of indoor coil when the system is operating in cool mode with excessive dirt on the indoor coil and / or clogged air filters and when the air conditioner is operating in cool mode at low ambient temperature. Cold draft protection when the system is operating in heat mode. When starting heat mode, the fan speed is regulated automatically from the lowest grade to the preset level, according to the temperature rise of indoor coil. This function can prevent cold air blowing out at the beginning of heat modem which avoids the discomfort to the user. High temperature protection of indoor coil when the air conditioner is operating in heat mode.

Defrost protection of outdoor coil when the air conditioner is operating in heat mode at very low ambient temperature.

Smart self-diagnostic function for malfunctions detection for fast easy service and maintenance.

Smart refrigerant leak detection by sensitive sensors mounted on the indoor and outdoor coils for fast easy service and maintenance.

( 3 )

3. TIPS OF ENERGY SAVING AND OPTIMUM COMFORT

In Summer

• Keep room temperature to comfort levels.

• Don’t remain in direct contact

with cold air for a long period. This is harmful to health.

• Don’t wait until it is too hot.

Turn the air conditioner for cooling before that.

• Don’t exaggerate on the temperature intensity, too cold.

Extreme temperatures are harmful to your health and waste energy.

COOL mode HEAT mode

In Winter

• Keep room temperature to comfort levels.

• Don’t remain in direct contact

with warm air for a long period. This is harmful to health.

• Don’t wait until it is too cold.

Turn the air conditioner for heating before that.

• Don’t exaggerate on the temperature intensity, too hot.

Extreme temperatures are harmful to your health and waste energy.

Keep doors, windows and any other openings closed to

prevent the conditioned air from escaping and to prevent

un conditioned air from entering the space to be air

conditioned.

When in cooling, avoid direct sun in the room to be air-

conditioned, if possible shut curtains or shades.

Keep doors, furniture or any other obstructions away from

blocking return air and / or supply air of the indoor unit to

assure maximum efficiency and adequate air circulation.

Use SLEEP function during sleep for energy

saving, comfortable and healthy sleep during cool

mode or heat mode.

COOL mode HEAT mode

With SLEEP function With SLEEP function

( 4 )

TIPS OF ENERGY SAVING AND OPTIMUM COMFORT (Cont.)

Ensure a uniform air circulation in the

room to be air conditioned

Clean periodically air filter of indoor unit

every two weeks to assure adequate air

circulation and maximum cooling or

heating efficiency.

Periodic service and maintenance of the

air conditioner or upon customer request

through carrier or carrier authorized

dealer service center.

Air Filter

Return grille

( 5 )

4. SPLIT SYSTEM DESCRIPTION

Sizes 18 - 24

Sizes 30 - 36

1: Remote control signal receiver. 2: Operating status leds. 6: Supply air outlet. 3: Supply air flap. 7: Characteristics nameplate. 4: Air return grille. 8: Refrigerant piping lines and electrical cables. 5: Air filter ( behind return grille ). 9: Condensate drain line.

Indoor Unit

Outdoor Unit

Indoor Unit

( 6 )

5. CONSIDERATIONS FOR REMOTE CONTROL

5-1 HOW TO INSERT BATTERIES :

(a) Remove the cover of battery

compartment at the back of the remote control by pressing the tab toward outside, in the direction

of the arrow.

control) with an object not sharp to operate the remote control.

(b) Mount two batteries size AAA 1.5 Volt supplied

with the remote control. Then close the cover of the battery component.

Note: During mounting of batteries check battery symbols (+, -) indicated in batteries compartment.

NOTES

1. The remote control uses two alkaline batteries (1.5 Volts) .

2. Do not use old batteries or batteries of different types, as this may cause the remote control to malfunction.

3. If you do not use the remote control for more than a few weeks, please remove the batteries.

Other wise battery leakage may damage the remote control.

4. The average battery life during normal use is approximately half a year.

5. Replace the batteries when there is no receiving beep coming from the indoor unit or transmission

indicator on the remote control fails to light.

6. Batteries should only be replaced after turning OFF the air conditioner.

5-2 INSTRUCTIONS OF USING WIRELESS REMOTE CONTROL

1- The remote control must be directed toward the receiver of indoor unit when pressing the buttons

of the desired functions. An acoustical acknowledgement sound (beep) will indicate that signal has been received.

2- Avoid direct sunlight on the receiver of indoor unit, which may interfere with good signal reception

and the air conditioner may not work properly. Draw the curtains to avoid direct sunlight. 3- Avoid obstacles obstructions such as curtains, doors or other materials between the remote control and the receiver of indoor unit to avoid blocking the signals from the remote control to the indoor unit. 4- The maximum operating distance for the remote control is approximately 8 meters. 5- Keep the remote control away from water. Do not let the remote control fall down. 6- Never use objects with sharp point to press the button on the remote control. 7- Prevent any liquid from falling into the remote control. 8- If other electric applications react to the remote control, move these applications.

5m maximum

( 7 )

6. DESCRIPTION OF LEDS DISPLAY AND EMERGENCY BUTTON

INDOOR UNITS 18 - 24

Indoor unit LED’s

• GREEN LED (1) shows the following conditions:

- Fault codes (diagnostic);

- During normal operation, the LED is lit. Once a failure occurs, the LED flashes at intervals of 0.5 seconds. The fault code is deduced from the number of times the LED flashes. Between one flash cycle and the next a pause of 5 seconds elapses. If the timer mode is active and the unit is immediately restarted after a stop, this LED flashes until a new signal is sent to the indoor unit.

• YELLOW LED (2) shows the operation in timer mode.

During this operation in this operating mode, the LED is lit. If the time mode is active and the unit is immediately restarted after a stop, this LED flashes until a new signal is sent to the indoor unit.

• RED LED (3) gives the following information:

- During normal operation, the LED is OFF;

- During defrost the LED is lit;

- During the test for wired connection, the LED flashes at 1- second intervals.

Button (5) : “EMERGENCY”

Can be used when the remote control is lost or inoperative. Use a screwdriver to press the push-button.

Emergency operation:

When the unit is in the OFF mode and the emergency is pressed for 5 seconds, the system will operate as follows:

- Automatic mode.

- Temperature preset to 22ºC.

- Automatic fan speed.

- Louvers set automatically according to operating mode.

- Timer Functions are inactive.

When a signal is received by the remote control, system operates accordingly.

1 : Green Led

2 : Yellow Led

3 : Red Led

4 : Remote control

signal receiver

5 : “Emergency” button

( 8 )

DESCRIPTION OF LEDS DISPLAY AND EMERGENCY BUTTON (Cont.)

INDOOR UNITS 30 - 36

Indoor unit leds

• GREEN LED (1) shows the following conditions :

- Fault codes (diagnostic);

- During normal operation, the LED is lit.

Once a failure occurs, the LED flashes at intervals of 0.5 seconds. The fault code is deduced from the number of times the LED flashes. Between one flash cycle and the next a pause of 5 seconds elapses. If the timer mode is active and the unit is immediately restarted after a stop, this LED flashes until a new signal is sent to the indoor unit.

• YELLOW LED (2) shows the operation in timer mode.

During this operation in this operating mode, the LED is lit . If the time mode is active and the unit is immediately restarted after a stop, this LED flashes until a new signal is sent to the indoor unit.

• RED LED (3) gives the following information:

- During normal operation, the LED is OFF;

- During defrost the LED is lit;

- During the test for wired connection, the LED flashes at 1- second intervals.

EMEGENCY OPERATION (5)

Can be used when the remote control is lost or inoperative. Use a screwdriver to press the push-button.

Emergency operation:

When the unit is in the OFF mode and the emergency is pressed for 5 seconds, the system will operate as follows:

- Automatic mode.

- Temperature preset to 22ºC.

- Automatic fan speed.

- Louvers set automatically according to operating mode.

- Timer Functions are inactive.

When a signal is received by the remote control, system operates accordingly.

1 : Green Led

2 : Yellow Led

3 : Red Led

4 : Remote control signal receiver

5 : “Emergency” button

( 9 )

7. USE OF REMOTE CONTROL

CLOCK ADJUSTING FUNCTION

Initial Setting or the Clock

When batteries are inserted in the remote control, the clock panel will display ‘’12:00’’ and being to flash.

Setting the clock

Before you start operating the air conditioner, set the clock of the remote control using the procedures given in this section. The clock display on the remote controller will show the time regardless of whether the air conditioner is in use or not.

With the remote control ON or OFF, Press

CLOCK for about 3 seconds, the clock time display will start to flash.

TEMP. button

• Press this button to set time.

Forward

Backward

• Each time you press the button, the time moves forward or backward by one minute

depending on which side you press. The time alters as quickly as you press the button.

• Keep pressing the button without releasing, the time moves forward or backward by

10 minutes depending on which side you press.

CLOCK button

When the right time is achieved, press the CLOCK button or release the

and wait for 3 seconds, the clock time stops flashing and the clock starts

Readjusting the Clock

Press the CLOCK button on the remote controller for about 3 seconds, the time of the clock display will start to flash. To set the new time, follow 1 and 2 of "Initial Setting of the Clock".

NOTES

* The clock time must be set before operating TIME functions. * The clock time cannot be adjusted during TIME operation.

* Clock accuracy is within 15 seconds per day.

CAUTIONS

Static electricity or other factors (voltage transients ) can cause remote controller clock initialise. If your remote controller is initialised readjust the clock before you start operation.

1 3

( 10 )

USE OF REMOTE CONTROL (Cont.)

COOL MODE

START

1. Press MODE button to select COOL mode

on the remote control display.

2. Press TEMP buttons or to select the

set temperature on the remote control display.

Set desired temp. between 17°C and 30°C.

3. Press FAN SPEED button to select

the desired fan speed on the remote control display.

4. Press ON/OFF button to start

the air conditioner.

ON symbol appears on the remote control display.

OPERATION led will illuminate on the display panel of indoor unit.

COOL mode starts after approximately 3 minutes

STOP

If you want to stop the air conditioner, Press ON/OFF button again.

NOTES

• If the room temperature is higher than

the selected temperature, the system will start COOL mode.

• If the room temperature is equal to or less than

the selected temperature, the system will stop COOL mode.

• If you use AUTO fan speed with COOL mode, the fan speed

changes automatically to low or medium or high speed based on the temperature difference between setting temperature and room temperature.

( 11 )

USE OF REMOTE CONTROL (Cont.)

HEAT MODE

START

1. Press MODE button to select HEAT mode on the remote control display.

2. Press TEMP buttons or to select the set temperature on the remote control display.

Set desired temp. between 17°C and 30°C.

3. Press FAN SPEED button to select the desired fan speed appears on the remote control display.

4. Press ON/OFF button to start the air conditioner.

ON symbol appears on the remote control display.

OPERATION led will illuminate on the display panel of indoor unit.

HEAT mode starts after approximately 3 minutes

STOP

If you want to stop the air conditioner, Press ON/OFF button again.

NOTES

• If the room temperature is lower than

the selected temperature, the system will start HEAT mode.

• If the room temperature is equal to or higher than

the selected temperature, the system will stop HEAT mode.

• If you use AUTO fan speed with HEAT mode, the fan speed

changes automatically to low or medium or high speed based on the temperature difference between setting temperature and room temperature.

( 12 )

USE OF REMOTE CONTROL (Cont.)

AUTO MODE

START

1. Press MODE button to select AUTO mode on the remote control display.

2. Press TEMP buttons or to select the set temperature on the remote control display.

Set desired temp. between 17°C to 30°C .

3. Press FAN SPEED button to select the desired fan speed appears on the remote control display.

4. Press ON/OFF button to start the air conditioner.

ON symbol appears on the remote control display.

OPERATION led will illuminate on the display panel of indoor unit.

AUTO mode starts after approximately 3 minutes

STOP

If you want to stop the air conditioner, Press ON/OFF button again.

NOTES

1. For Heat Pump System When Auto mode is activated, the air conditioner changes the operation mode automatically to cool or heat or fan only mode and also changes fan speed to auto speed by sensing the temperature difference between room temperature and set temperature.

2. For Cool Only System When Auto mode is activated, the air conditioner changes the operation mode automatically to cool or fan only mode and also changes fan speed to auto speed by sensing the temperature difference between room temperature and set temperature.

3. In the Auto mode, you cannot switch the fan speed. It has already been automatically controlled.

4. If the Auto mode is not comfortable for you, the desired mode can be selected manually.

5. If the Eco function is activated when the unit is operating in Auto mode, the fan speed will change into Low speed mode immediately.

( 13 )

USE OF REMOTE CONTROL (Cont.)

DRY MODE

START

1. Press MODE button to select DRY mode on the remote control display.

2. Press TEMP buttons or , to select the set temperature the remote control display.

Set desired temp. between 17°C to 30°C .

3. Press ON/OFF button to start the air conditioner.

ON symbol

appears on the

remote control display.

OPERATION led

will illuminate

on the display panel of indoor unit.

DRY mode starts after approximately 3 minutes

STOP

If you want to stop the air conditioner, Press ON/OFF button again.

NOTES

• In DRY mode, you can not switch the indoor indoor fan speed.

The indoor fan speed will be automatically selected AUTO.

• The DRY mode will automatically select the drying operation based on the

difference between the set temperature and the actual room temperature.

• The temperature is regulated while dehumidifying by repeating turning on

and off of the cooling operation or fan only.

( 14 )

USE OF REMOTE CONTROL (Cont.)

FAN ONLY MODE

START

1. Press MODE button to select FAN mode on the remote control display.

2. Press FAN SPEED button to select the desired fan speed on the remote control display.

3. Press ON/OFF button to start the air conditioner.

ON symbol appears on the remote control display.

OPERATION led will illuminate on the display panel of indoor unit.

FAN ONLY mode starts immediately.

STOP

If you want to stop the air conditioner, Press ON/OFF button again.

NOTES

• In FAN mode, the unit will start immediately.

• FAN mode does not control temperature.

The setting temperature is not displayed on the remote control display.

( 15 )

USE OF REMOTE CONTROL (Cont.)

SWING FUNCTION

Press button SWING repeatedly to choose the following flap :

The louver will continuously swing up and down. “Swing” always assures optimal even air distribution in the room.

• In Cool or Dry or Fan mode, the louver will swing in cooling range.

• In Heat mode, the louver will swing in heating range.

Note: If you want to cancel swing function

Press button

SWING at the desired flap position

AIR DIRECTION FUNCTION

The air conditioner automatically adjusts the vertical supply air direction in accordance with the operating mode.

To set the vertical supply air direction (Up- Down)

• Perform this function while the unit is in operation.

• Keep pressing the AIR DIRECTION button on the remote

control to move the louver to the desired.

• In subsequent operations, the vertical air flow is automatically

set in the direction to which you adjusted the louver by pressing the AIR DIRECTION button.

Left and Right Control

If you want to adjust the direction of the discharge air to left or right,

adjust the vertical louver with the handle after opening the flap.

NOTES:

• Please do not fix the flap for a long time, as this position minimizes

air circulation resulting in uneven room temperature.

• Please avoid the discharge air being directed towards the occupants for a long period of time.

• Do not adjust the flap by the hand during SWING operation because it may damage the air swing

function.

COOL

HEAT

Swing Range

( 16 )

USE OF REMOTE CONTROL (Cont.)

SLEEP Function

HEALTHY SLEEP TIMER FUNCTION

Sleep function is useful when you go to sleep. When Sleep function is activated, the air conditioner automatically controls the selected temperature and consequently controls the room temperature to avoid overcooling or overheating and to have comfortable and healthy sleep.

SLEEP function with COOL Mode

If you want to operate SLEEP function with Cool mode to save energy and maintain the most comfortable temperature during COOL mode, apply the following steps :

Start:

Press SLEEP button to activate SLEEP function

Then the logo of function show on display of remote control.

• The fan speed will automatically change to low speed.

• The set temperature will be automatically increased by 1°C

after 1 hour after COOL mode is selected.

• Then the set temperature will be automatically increased by

another 1°C after additional 1 hour.

• This new temperature will be maintained.

Stop: If you want to cancel SLEEP function, press any other button.

SLEEP function with HEAT Mode

If you want to operate SLEEP function with Cool mode to save energy and maintain the most comfortable temperature during HEAT mode, apply the following steps :

Start:

Press SLEEP button to activate SLEEP function

Then the logo of

function show on display of remote control.

• The fan speed will automatically change to low speed.

• The set temperature will be automatically decreased by 1°C

after 1 hour after HEAT mode is selected.

• Then the set temperature will be automatically decreased by

another 1°C after additional 1 hour.

• This new temperature will be maintained.

Stop: If you want to cancel SLEEP function, press any other button.

NOTE

SLEEP function is only available with COOL, HEAT

and AUTO mode.

SLEEP function with COOL mode

SLEEP function with HEAT mode

( 17 )

USE OF REMOTE CONTROL (Cont.)

TIMER ON FUNCTION ( Off → Start Operation )

TIMER ON function is useful when you want to start automatically the air conditioner at a desired setting time when you wake up in the morning or when you return home.

Example:

To automatically start the air conditioner at 6:00 in the morning Proceed with following steps :

(1) Press TIMER button until the remote control display shows.

TIMER ON indicator and the last setting time which is flashing. Now it is ready to reset the setting time of TIMER ON function.

(2) To set the desired time, Press TEMP. button (Forward)

or (Backward) unit the time 6:00 is displayed.

 Each time you press there the button, the time moves forward

or backward by 10 minutes depending on which one you press. The time alters as quickly as you press the button.

(3)

After setting the time for TIMER ON function,

the TIMER led

will illuminate

on the display panel of the indoor unit.

TO CANCEL TIMER ON FUNCTION

Press CANCEL button if you want to cancel TIMER ON setting.

TO CHANGE TIMER ON SETTING

Perform steps 1, 2 and 3 to change TIMER ON setting.

CAUTION

 When you select the timer operation, the remote control

automatically transmits the timer signal to the indoor unit at the specified time. Therefore, keep the remote control in a location from which it can transmit the signal to the indoor unit properly.



The effective operation time set by remote control is limited in 24 hours.

Start

Off

Set

( 18 )

USE OF REMOTE CONTROL (Cont.)

TIMER OFF FUNCTION ( On → Stop Operation )

TIMER OFF function is useful when you want to stop automatically the air conditioner at a desired setting time after you go to bed.

Example :

To automatically stop the air conditioner at 23:00 in the evening proceed with the following steps :

(1) Press TIMER button until the remote control display shows.

TIMER OFF indicator and the least setting time which is flashing Now it is ready to reset the setting time of TIMER OFF function

(2) To set the desired time, Press TEMP. button (Forward)

(Backward) unit the time 23:00 is displayed.

• Each time you press the button the time moves forward or

backward by 10 minutes depending on which one you push. The time alters as quickly as you press the button.

(3) After setting the time for TIMER ON function,

the TIMER led

will illuminate

on the display panel of the indoor unit is illuminated.

TO CANCEL TIMER ON FUNCTION

If you want to cancel TIMER OFF setting, Press CANCEL button.

TO CHANGE TIMER ON SETTING

Perform steps 1, 2 and 3 to change TIMER OFF setting.

CAUTION

 When you select the timer operation, the remote control

automatically transmits the timer signal to the indoor unit at the specified time. Therefore, keep the remote control in a location from which it can transmit the signal to the indoor unit properly.



The effective operation time set by remote control is limited in 24 hours.

Stop

Set

( 19 )

USE OF REMOTE CONTROL (Cont.)

COMBINED TIMER ON → TIMER OFF FUNCTION ( Off → Start Operation → Stop Operation )

You can use this setting to automatically start operation of the air conditioner before you wake up and automatically stop it after you leave the home.

Example:

If you want to start operation of the air conditioner at 6:00 AM the next morning, and stop at 8:00 AM proceed as follows:

1. Press TIMER button until TIMER ON indicator is displayed and setting time is flashing.

2. Use TEMP/TIME button to display "6:00" beside the TIMER ON indicator.

Wait 3 seconds, the TIMER ON time will be registered.

3. Press TIMER button again until TIMER OFF indicator is displayed and setting time is flashing.

4. Use TEMP/TIME button to display "8:00" on the TIMER OFF indicator.

5. Wait 3 seconds until the setting time stops flashing and this function is activated.

NOTES

 If you want to cancel ON or OFF timer setting, press CANCEL button.  The timer function (ON or OFF ) which in time is closest to the actual time will be activated first.  If the same time is set for both ON and OFF timers, no timer operation is performed.

Also, the air conditioner may stop operating.

6:00

Set

Start

Stop

Off

8:00

( 20 )

USE OF REMOTE CONTROL (Cont.)

COMBINED TIMER OFF → TIMER ON FUNCTION ( On → Stop Operation → Start Operation )

You can use this setting to automatically stop the air conditioner after you go to sleep and start it automatically again in the morning when you wake up or you return home.

Example:

Now it is 20: o’clock in the evening If you want to automatically stop operation at 23:00 PM and automatically start again at 6:00 AM in the next morning with the same operating mode, proceed as follows:

To start the air conditioner at 6:00 the next morning, and stop it at 8:00.

1. Press TIMER button, until TIMER OFF indicator is displayed and the setting time is flashing.

2. Use the TEMP/TIME button to display "23:00" beside the TIMER OFF indicator of the remote control.

Wait 3 seconds, the TIMER OFF time will be registered.

3. Press TIMER button again until TIMER ON indicator is displayed and setting time is flashing.

4. Use TEMP/TIME button to display "6:00" beside the TIMER ON indicator.

5. Wait 3 seconds until the setting time stops flashing and this function is activated.

NOTES

Also, the air conditioner may stop operating.

23:00

Set

Start

Stop

6:00

( 21 )

USE OF REMOTE CONTROL (Cont.)

RESET Function F/C Function

When you press the recessed RESET button, all current settings are cancelled and return to original factory settings.

• The clock time “12:00” will flash

• The mode displays “AUTO”

• The fan speed displays “AUTO”

• The temperature displays “24”

Note : You will need to reprogram the clock setting after Pressing RESET button

LOCK Function

1. Use LOCK function when you want to prevent settings from being changed accidentally.

2. When you press TEMP. ▲and ▼ buttons as the same time, all current settings are locked in and the remote control does not accept any operation except that of the LOCK.

3. A LOCK symbol will appear on the bottom right hand sides of the remote control display when the LOCK function is activated.

4. If you want to cancel LOCK function, Press again TEMP. ▲and ▼ buttons as the same time.

Used to select / display temperature settings in either “ Celsius ” or Fahrenheit. Press this button to select either the Celsius or Fahrenheit scale.

( 22 )

8. AIR FILTERS CLEANING

WARNING:

It is necessary to stop the air conditioner and disconnect the power supply before cleaning air filters.

- The air filters supplied with the unit are high-efficiency washable and recyclable filters.

- To establish, how frequently these should be cleaned, the operating conditions must

be taken in to account.

- REMOVAL OF AIR FILTERS FOR CLEANING:

Indoor Units 18 - 24 Indoor Units 30 - 36

To remove air filters

1. Open the return grille without removing the two screws and the

central clamp from their position.

To remove air filters

1. Open the return grille without removing the two screws and the

central clamp from their position

2. Remove filters

2. Remove air filters for cleaning.

- CLEANING OF STANDARD AIR FILTERS:

3. First clean the filter with a vacuum cleaner every month. And Rinse filter under running water, and dry it.

4. After cleaning, put the filters back in the correct positions.

Notes:

(1) After cleaning, put the filters back in the correct positions. (2) Before operating the air conditioner, check that air filters are in their places inside unit.

( 23 )

9. INDOOR UNIT CLEANING

Turn the unit off and switch the mains supply off.

Use only a clean, damp and soapy cloth. Do not pour any liquids on the unit. Do not use flammable liquid, solvents or abrasive powders: these can damage the casing.

Avoid any contact with sources of heat, as hot air can damage the unit casing. Clean the infrared control using a damp cloth.

9-2 INDOOR COIL CLEANING

It is recommended to clean the coil at least at the beginning of each cooling season or when necessary; turn the unit off first.

• Use a vacuum cleaner or a long-bristle brush to avoid damage to the coil fins.

• Watch the fin edges to avoid injury.

• Damage to the fins may cause reduced coil efficiency resulting in increased running costs. Use

of flames, liquid or aerosol solvents must be avoided. Use of these substances will cause serious damage to the panels and electric parts.

( 24 )

10. PERIODICAL CHECKS

WARNING:

It is necessary to stop the air conditioner and disconnect the power supply before performing service and maintenance operations.

For a good operation of the air conditioner it is recommended to carry out periodic service and maintenance of the air conditioner or upon customer request through Carrier or Carrier authorized dealer. Recommended service and maintenance works and intervals may vary depending on the installation environment, e.g. dusty zones, etc. see below table :

Indoor Unit

Every Month Every Year

Clean air filters

(3)

●

(1)

Clean drain pipe

(2)

●

Change remote control batteries

(4)

●

Outdoor Unit

Every Month Every Year

Clean outdoor coil

(2)

●

Blow air over electric parts

(2)

●

Check electric connection tightening

(2)

●

Clean fan wheel

(2)

●

Check fan tightening

(2)

●

Clean drain pan

(2)

●

NOTES

(1) Increase frequency in dusty zones. (2) Service and maintenance works to be carried out by qualified service personnel. (3) Cleaning air filters can be done by customer every month. (4) Changing batteries of remote control can be done by customer every year.

11. CONSIDERATIONS BEFORE A LONG SHUTDOWN PERIOD OF AIR CONDITIONER

Keep the indoor unit in operation for half a day in the ventilation (fan only) mode in order to dry all internal parts.

Switch electric mains supply off.

Take batteries out of the remote control.

Clean indoor and outdoor units.

Clean the air filters and reposition them in the unit.

12h

( 25 )

12. OPERATION TIPS

The following events may occur during normal operation of the air conditioner:

1. A slight white mist (water vapor)coming out from the indoor unit during cooling

 A white mist may generate due to a large temperature difference between air inlet and air outlet on

COOL mode in an indoor environment that has a high relative humidity. The cool air from the indoor unit is coming into contact with the room air.

 A white mist may generate due to moisture generated from defrosting process when the air

conditioner restarts in HEAT mode operation after defrosting.

2. Low noise of the air conditioner

 You may hear a low hissing sound when the air conditioner is running or has just stopped

running. This sound is the sound of the refrigerant beginning to circulate or an adjustment of the refrigerant pressures after stopping.

 You can also hear a low short "squeak" when the indoor unit is in operation or when it has

stopped. These are generally due to the temperature changes on the plastic parts ( expansion or contraction ).

A noise may be heard due to louver restoring to its original position when power is first turned on.

3. Dust is blown out from the indoor unit.

This is a normal condition when the air conditioner has not been used for a long time or during first use of the unit.

4. Unpleasant smells coming out from the indoor unit.

 Unpleasant smells can be caused by substances accumulated in the air filters of indoor unit.  In this case, you must switch the system off and air filters must be cleaned.  Restart the unit in ventilation ( fan only ) mode and open windows to change the room air,

5. The air conditioner turns to FAN only mode from COOL or HEAT.

When indoor temperature reaches the temperature setting on air conditioner compressor will stop automatically the ,and the ,air conditioner turns to FAN only mode. The compressor will start again when the indoor temperature rises on COOL mode or falls on HEAT mode (only for heat pump system) to the set point.

6. Dripping water may generate on the surface of the indoor unit (when cooling in a high relatively humidity higher than 80%).

Adjust the horizontal louver to the maximum air outlet position and select HIGH fan speed.

7. Heating mode For.

The air conditioner draws in heat from the outdoor unit and releases it via the indoor unit during heating operation. When the outdoor temperature falls, heat drawn in by the air conditioner decreases accordingly. At the same time, heat loading of the air conditioner increases due to larger difference between indoor and outdoor temperature. If a comfortable temperature can't be achieved by the air conditioner, we suggest you use a supplementary heating device.

8. Mist (water vapor) coming out from the outdoor unit during heating

It is normal in heat pump operation when defrost is automatically activated during heating operation at very low ambient.

9. Lightning or a car wireless telephone operating nearby may cause the unit to malfunction.

Disconnect the unit with power and then re-connect the unit with power again. Push the ON/OFF button on the remote controller to restart operation.

( 26 )

13. TROUBLE SHOOTING

TROUBLE REASON ACTION

After batteries have been placed into the remote control, the display is not lit.

Batteries are exhausted or have the wrong polarity.

Replace batteries or check polarity.

When pressing the recessed clock adjustment button, hour figures on display do not flash.

Recessed button has not been pressed correctly.

Press with a round point, avoid exerting strong pressure

When pressing any button, all symbols appear on display.

Recessed button for time setting is blocked due to excessive pressure during use.

Check and repair.

Remote control has been irreversibly damaged.

Replace with a new one.

When pressing start button, unit does not acknowledge signal

with a beep.

When pressing stop button, unit does not acknowledge signal with a beep.

When pressing any function button, the remote control shows the function requested on the display, but unit does not acknowledge signal receipt with a beep and does not carry out the function.

Main switch is OFF. Switch it to ON position. Remote control batteries are exhausted.

Replace batteries.

Remote control has not been pointed correctly to the receiver of indoor unit.

Turn remote control OFF and repeat the operation in the

correct direction. There are obstacles (curtains, walls, etc.) between the remote control and the indoor unit

Repeat the operation after having

removed the obstacles.

Receiver on the indoor unit or the remote control is under intense sun radiation.

Avoid direct sun on the unit, shut

curtains or shades.

Signal transmission is obstructed by severe interference from an electromagnetic field.

Avoid sending signals when

computers or household

appliances (Food processors,

coffee makers, etc.) are operating

close by cellular or cordless

telephones may also interfere

with the control.

( 27 )

TROUBLE SHOOTING (Cont.)

TROUBLE REASON ACTION

Air conditioner will not start. Main supply switch is OFF Switch to ON

Fuses or main switch are blown Replace fuses Protection against frequent compressor cycling is ON

Wait for 3 minutes.

Selected temperature is higher than the room temperature in the cooling mode (or lower in the heating mode).

Correct selected temperature.

Air conditioner is not supplying enough cooling.

Air flow cannot circulate freely Remove obstructions. Dirty filters reduce air quantity circulating.

Clean air filters

Doors and/or windows are open. Close doors and windows Fan speed has been set to “Low” Set fan speed at high speed. Air flow direction is not correct Adjust airflow direction as per

the mode chosen. Selected temperature is higher than the room temperature in the cooling mode.

Correct selected temperature.

Air conditioner is not supplying enough heating.

Air flow cannot circulate freely Remove obstructions. Dirty filters reduce air quantity circulating.

Clean air filters

Doors and/or windows are open. Close doors and windows Fan speed has been set to “Low” Set fan speed at high speed. Air flow direction is not correct Adjust airflow direction as per

the mode chosen. Selected temperature is Lower than the room temperature in the heating mode.

Correct selected temperature.

Green led on the display panel of indoor unit is showing a malfunction

System malfunction. Contact service center after having made the following checks:

• Air filters are clean.

• Air circulation is not obstructed.

• Outdoor unit coil is not

obstructed with a severe reduction of air circulation.

Refer to the installation

manual for fault code reading

to be notified to service center.

Restart air conditioner after

having corrected the faults.

Harmony

Floor / Under-Ceiling Split Systems

Wireless Remote Control

Display of Indoor Unit

OPERATION green led

TIMER function yellow led

Cold Draft or Defrost red led

Remote control signal receiver

Cold Draft or Defrost red led

TIMER function yellow led

OPERATION green led

Remote control signal receiver

Emergency switch

SPEED

LOW MED HIGHAUTO

SET TEMP.

TIMER ON

TIMER OFF

CLOCK

DRY

FAN

HEAT

COOL

AUTO

Signal transmission indicator

Operating mode indicator

Automatic (heat pump model only)

AUTO

Cooling and dehumidication

COOL

Dehumidication only

DRY

Heating (heat pump models only)

HEAT

Ventilation (fan only)

FAN

ON/OFF indicator

SET TEMP. indicator

Temperature unit of measurement (ºC or ºF)

Current time

ON TIMER or OFF TIMER

FAN SPEED indicator

FAN SPEED indicator AUTO

AUTO

FAN SPEED indicator LOW

LOW

FAN SPEED indicator MED

MED

FAN SPEED indicator HIGH

HIGH

SLEEP function indicator

LOCK function indicator

Display of Remote Control

18K - 24K 30K - 36K

18K - 24K

30K - 36K

Harmony

Floor / Under-Ceiling Split Systems

Wireless Remote Control

18K - 24K 30K - 36K

MODE selection button

Decrease temperature button

Increase temperature button

FAN SPEED selection button

ON/OFF button

SWING horizontal ap button

AIR DIRECTION horizontal ap button

SLEEP function button

CLOCK adjusting button

TIMER ON or TIMER OFF function button

CANCEL TIME function button

LED DISPLAY function button

RESET function button

F/C function button

DISPLAY

9 10 11

1 5 4

Control Buttons

Carrier Harmony 53VMCT 18C-24C-30C-36C, Harmony 53VMCT 18H-24H-30H-36H Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual