carrier 42QHC009DS WALL-MOUNTED AIR CONDITIONER Owner’s Manual

: June 5, 2024
: Carrier

Table of Contents

carrier 42QHC009DS WALL-MOUNTED AIR CONDITIONER Owner’s Manual
READ BEFORE OPERATING
OPERATION
CARE
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carrier 42QHC009DS WALL-MOUNTED AIR CONDITIONER Owner’s Manual

READ BEFORE OPERATING

This product has been determined to be in compliance with the Low Voltage Directive (2014/35/EU), and the Electromagnetic Compatibility Directive
(2014/30/EU) of the European Union.

Correct Disposal of This Product (Waste Electrical & Electronic Equipment)

(When using this air conditioner in European countries, the following guidance must be followed)

This marking shown on the product or its literature, indicates that waste electrical and eletrical equipment (WEEE as in directive 2012/19/EC) should not be mixed with general household waste.
It is prohibited to dispose of this appliance in domestic household waste.
For disposal, there are several possibilities:

The municipality has established collection systems, where electronic waste can be disposed of at least free of charge to the user.
When buying a new product, the retailer will take back the old product at least free of charge.
The manufacture will take back the old appliance for disposal at least free of charge to the user.
As old products contain valuable resources, they can be sold to scrap metal dealers.
Wild disposal of waste in forests and landscapes endangers your health when hazardous substances leak into the ground-water and find their way into the food chain.

CAUTION

Read this manual before using the product!
This appliance can be used by children aged from 8 years and above persons with reduced physical,sensory or mental capabilities or lack of experience and knowledge, if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
Children should not play with the appliance.Cleaning and user maintenance shall not be made
by children without supervision.
Moving parts of appliance must be installed/located at the level not less than 2.3m from the floor.
ELECTRICAL work may only be performed by authorized personnel and inaccordance with national wiring standard. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard

READ BEFORE OPERATING

1.1 Safety Precautions

Follow these instructions carefully to
- avoid incorrect operation.
- prevent personal injury or consequential damage.
- optimise product life.
The level of seriousness is classified as follows:

WARNING
This symbol indicates the possibility of personnel injury or loss of life.

CAUTION
This symbol indicates the possibility of property damage or serious consequences.

Symbols used in the units and manual:

| WARNING| This appliance used a flammable refrigerant. If the refrigerant is leaked and exposed to an external ignition source, there is a risk of fire.
---|---|---
| CAUTION| The operation manual should be read carefully.
| CAUTION| A service personnel should be handling this equipment with reference to the installation manual.
| CAUTION| Information is available such as the operating manual or installation manual.

CAUTION

The task of installing this product must only be performed by suitably qualified and appropriately experienced persons.

Power plug must be securely inserted into the socket outlet if applicable.

Do not operate or stop the unit by connecting or disconnecting power plug.

Do not use extension cord or share the same power outlet with other appliances.

Do not use flammable gas or ombustibles such as gasoline, benzene, thinner, etc. in the conditioned space.

Do not use a heating appliance in the conditioned space.

Children must be advised not to play with the air conditioner controls, moving parts and/or refrigeration and electrical connections.

Prolonged exposure to drafts may lead to muscular discomfort and dry eyes.

Operating with wet hands may result in electrical shock.

Do not attempt to repair, move or modify your air conditioner.

Seek professional help – contact an authorized dealer.

CAUTION

Unplug the unit when unused for long periods.

The product is intended for human comfort ONLY

Do not climb or place objects on the unit.

Do not block air inlets or outlets. Poor performance, increased running costs and reduced product life will result.

Disconnect BEFORE cleaning or servicing.

Regularly inspect air filters and clean them if required.

When cleaning, use water sparingly to prevent electrical shock.

Never use strong detergents, solvents or abrasive polish on the product.

Part Names

Displays temperature, operation feature and Error codes:
for 3 seconds when:
TIMER ON is set
FRESH, SWING, TURBO, or SILENCE features are turned on
for 3 seconds when:
TIMER OFF is set
FRESH, SWING, TURBO, or SILENCE features are turned off
when anti-cold air feature is turned on
when defrosting
when unit is self-cleaning(some units)
when 8°C or 12°C heating mode is turned on(some units)
when fresh feature is turned on(some units)
when ECO feature is activated(some units)
when wireless control feature is activated(some units)
kW ” Indicates the current operation power(some units)

Remote Control

Remote Control Holder (Some Units)

Display Code Meanings

In Fan and Dry mode, the unit will display the room temperature. In other modes, the unit will display your temperature setting.
Press the LED button on the remote control will turn off the display screen,
press the LED button again during 15 seconds will display the room temperature, if press it again after 15 seconds, it will turn on the display screen.

OPERATION

2.1 Operating Condition

	Indoor	Outdoor
Cooling operation	Upper limit	32°C DB
Lower limit	16°C DB	-15°C DB
Heating operation	Upper limit	30°C DB
Lower limit	0°C DB	-15°C DB

Note: DB – Dry Bulb

Optimum performance will be achieved within these operating temperatures.
When the unit operates above or below these conditions for a long time, system diagnostics may detect a malfunction and the unit will not operate properly.
Room relative humidity – less than 80%. If the air conditioner operates outside this range, the surface of the air conditioner may attract condensation. Please set the air flow louver to its maximum angle and set HIGH fan mode.
FOR OUTDOOR UNITS WITH AUXILIARY ELECTRIC HEATER: When outside temperature is below 0°C, we strongly recommend keeping the unit plugged in at all time to ensure smooth ongoing performance.

2.2 Manual Operation

CAUTION

The manual button is intended for testing purposes and emergency operation only. Please do not use this function unless the remote control is lost and it is absolutely necessary. To restore regular operation, use the remote control to activate the unit.

ACCESS
Open the front panel by carefully lifting both ends at the same time.
Once lifted sufficiently, a click is heard and it becomes self-supporting.
OPERATE
Press the manual button repeatedly to change modes as follows;
a Once = AUTO mode [heat, cool or fan and auto fan speed].
b Twice= COOLING mode [ switches to AUTO mode after 30 minutes (mainly used for testing purpose)].
c Three times = OFF.
COMPLETE
Close the panel by firmly tugging downwards on both ends until it returns to its original position.
RESTORE
Using the remote controller will return the unit to normal operation.

2.3 How It Works!

Basic Operation Modes: AUTO / COOL / DRY / HEAT / FAN
[]Model dependent AUTO Mode
●In this setting the system will automatically change modes and fan speed to the set temperature.
●In spring and autumn, closer temperature control may require COOL/HEAT mode changes.
DRY Mode
In this mode, priority is given to dehumidifying the air. Low fan speed and compressor cycling is used to achieve this and regulate room temperature.
SLEEP Mode
When selected, the set temperature will increase (cooling) or decrease (heating) by 1°C after 1 hours and an additional 1°C in each hour. Thereafter it keeps this new temperature for 6 hours before switching off.
This operation saves energy and improves night time comfort by synchronising with the body’s metabolism.
**ECO Mode***
ECO mode can be activated at cooling mode for energy saving. When selected, the unit will automatically regular the fan speed and compressor rotation. It provides you the same comfort with minimum power consumption in 8 hours running time.

Hints For Economical Operation

Adjust the temperature to achieve moderate comfort levels.
Excessively low or high temperatures waste energy.
Improve performance by keeping windows and doors closed.
Limit energy usage [run time] by using the TIMER function.
Do not block air inlets or outlets. It will cause poor performance, increased running costs and reduced product life.
Inspect the air filters periodically, and clean them when needed
cold

hot

2.4 Directional Control

Adjusting vertical air flow

Press “SWING(vertical air flow)” on remote controller to adjust vertical air flow direction. The louver position moves slightly each time the button is pressed.
Press “SWING(vertical air flow)” to engage continuous louver motion.

Adjusting horizontal air flow

Press “SWING(horizontal air flow)” on remote controller to adjust vertical air flow direction. The louver position moves slightly each time the button is pressed.
Press “SWING(horizontal air flow)” to engage continuous louver motion.

WARNING!

Do not put your fingers in or near the blower and suction side of the unit. The high-speed fan inside the unit may cause injury.
Do not move louver by hand. This will cause the ouver to become out of sync. If this occurs, turn off the unit and unplug it for a few seconds,then restart the unit. This will reset the louver.

Note: Please refer to the REMOTE CONTROLLER MANUAL for details.

Intelligent Eye Operation
Press the Intelligent eye button on the remote control to select wind flow follow people feature or wind flow away from people feature.
The intelligent eye can detect people’s activities in the room and adjust the horizontal angle of air flow to implement the features.

NOTE: The wind flow follow people feature is only available for a single people area. If press the SWING button on the remote control, this feature will stops automatically.

The detectable range is varied according to the room temperature.

For example: Detectable area at 25 °C.

CAUTION

Louver position Maximum down
In COOLING or DRY mode, condensate may form and drip from unit in high humidity condition.
Narrow opening
Restricted air flow reduces performance and may cause condensate.
Closed
Do not operate if it will not open – damagemay occur.
Louver action
After a quick restart, louver may remain static for about 10s.

Features (Model dependent)

Auto swing of horizontal air flow*
Press “SWING” for two secends to engage vertical blades swing motion.
Note: Please refer to the REMOTE CONTROLLER MANUAL for details.
Louver Memory*
Horizontal louver angle is memorised and will return to the position last selected by the user.
This will not happen in TURBO mode, running by manual control buttons, or after a power interruption.

2.5 Special Functions

Compressor Delay
At start-up, a time delay of 3 ~ 5 minutes protects the compressor.
Auto Defrost
Ice develops on the outdoor unit in heating mode. To defrost this ice, the indoor fan stops for a few minutes before heating continues.
Anti-cold
To avoid uncomfortable when the air conditioner get into heating mode, the indoor unit will preheat before the fan starts. This delay should only last a few minutes.
Auto Restart
The unit will automatically restart after a power interruption. Previous user settings are all recovered.
Auto Leak Detection
When refrigerant leakage is detected, the unit will display “EL C” code or flash LEDs [model dependent].
**Mildew Prevention***
This function keeps the indoor fan running in low speed for 7 minutes after being turned off by the user in cooling mode. Drying the water droplets on the indoor heat exchanger prevents mildew growth.
Turbo
The Turbo function makes the unit work extra hard to reach your present temperature in theshortest time possible
**WLAN Control***
With WLAN function, the unit can be controlled either by remote controller or by your mobile phone. Connect the WLAN module and communication module with display board to activate this function.
**Louver Angle Memory***
When turning on your unit, the louver will automatically resume its former angle.
**Air Fresh function***
Innovated Air Magic technology, effectively eliminates bacteria, virus, microbes,and other harmful substances and refresh the air.
8°C & 12°C heating function
When the air conditioner operates under heating mode with the set temperature of 16°C, scrolls through operation mode as follows by pressing temperature button twice in one second: 8°C heating → 12°C heating → Previous heating mode.
**Self Cleaning***
Airborne bacteria use the moisture on the indoor heat exchange to grow. Regular drying of the exchange prevents this growth. By simply pressing the “self clean” button, the controller will automatically manage the process.

[*] Model dependent.

Interrupting this process may scramble the control logic. To reverse this, briefly disconnect the electrical supply.

CARE

Care and Maintenance

DISCONNECT from power source BEFORE attempting to clean or service!

General Cleaning
Use a soft damp cloth when cleaning the grille, casing and remote controller.

No chemicals e.g. detergents, solvents, abrasive polish, etc,
No heat (over 40°C)

Filter Cleaning

Open the front panel by carefully lifting both ends at the same time. At a certain angle, a clicking sound is heard and it becomes selfsupporting.
Hold the tab on the filter to move it up a little, then pull slightly towards you. Now extract the filter by gently pulling it downwards.
Unclip the small specialized filter.

Clean the large air filter/s with soapy water. Rinse with fresh water. Shake off excess water.
Vacuum clean the small filter/s. [Replace occasionally]
Refit the small filter onto the large filter.
Re-insert into unit in the reverse order described in point 2 above.

8 Close the front panel.

Storage Preparation [long idle periods]

Clean the air filters.
In humid or damp climates, operate in Fan mode until the unit has dried out.
Turn the air conditioner off with the remote controller and remove the batteries.
Disconnect from the power source.

Re-use After Storage

Reconnect to the power source.
Wait 24 hours when the ambient temperature is low (For inverter model).
Reinstall the batteries into the remote controller and turn the unit on.

Preventative Maintenance
Regularly check your unit for:

Obstructed airflow through the indoor and outdoor units.
Water or oil leaks.
Damaged or disconnected wires

CAUTION

Metal parts may have sharp edges that cause injury. Take care!
Regular high level maintenance of the indoor and outdoor units is essential.

Specialist MAINTENANCE is required to do deep-clean, lubricate and function check of all critical components.
Do not attempt such work by yourself.
Contact a suitable service provider.

TROUBLE SHOOTING

Guides, Tips and Cautions

The following may occur during normal operation, and may not indicate malfunction.

Case	Explanation
Cooling or heating is delayed.	A 3 ~ 5 minutes delay protects the compressor.
Fan speed changes – off, very slow and then normal	Automatically happens in

heating mode – prevents cold air blowing onto occupants.
The heating operation stops suddenly and defrost-light blinks.| Frost removal on outdoor unit is in progress (5 ~ 10mins).
Mist coming out of the indoor unit| May occur when unit temperature is low and room air is hot and humid.
Low volume sounds are emitted by the air conditioner| “Hissing”: normal – gas pressure equalizing when

compressor stops or starts.

“Squeaking”: normal expansion and contraction of

plastic and metal parts.

Rushing air – normal when louver resets its position.
Dust discharges from the unit.| May occur when air conditioner is used for the first time

or has not been used for a long time.

Emits a peculiar odour.| Usually caused by chemicals, cigarette smoke, cooking etc. If not the case call your suitable contractor.
Changes to fan only while cooling or heating.| Room temperature is the same as that selected with the remote. If not the case call a suitable contractor.
Poor heating performance| May occur when outdoor temperatures are close to or below zero degrees Celsius.
If not the case call a suitable contractor.
Turns on automatically| Normal when power is restored after a power failure.
Operation is erratic, unpredictable or unresponsive.| Interference from cell phone towers and remote boosters may cause the unit to malfunction.
Disconnect the power and then re-connect.
Press the ON/OFF button on the remote controller to restart operation.
If the problem is not resolved call a suitable contractor.
The multi-system air conditioner can not be in different operating modes at the same time, such as one unit being

in the “COOL” mode and one unit being in the “HEAT” mode.

When conducting different operations, the “HEAT” mode will be given priority. The indoor unit which operates in “COOL” or “FAN” mode will stop and display “P5”.

CONCERN	PLEASE FIRST CHECK!
Unit will not operate.	• Is there a power failure?

•    Has a switch been turned off, a circuit breaker tripped or a fuse blown?
•    Are the batteries in the remoter control fresh?
•    Are the clock and timer on the remote set correctly?
Not cool/warm enough.| •    Are the temperature and mode settings correct?
•    Are the air filters clean?
•    Are the windows and doors closed?
•    Is air flow unrestricted in & out of indoor & outdoor units?
•    Is fan speed on high and louvers allowing maximum flow?

CAUTION

In the case of ANY of the following, turn off the unit immediately!