Carrier CA007U WALL MOUNTED AIR CONDITIONER Owner’s Manual

Carrier CA007U WALL MOUNTED AIR CONDITIONER

READ BEFORE OPERATING

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:
• This symbol indicates the possibility of personnel injury or loss of life.
• Symbols used in this manual:
• AVOID
• COMPLY
• 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
• Turn off the unit if unusual smells, sounds or vibrations are noticed. Contact authorized dealer.
• Do not attempt to repair, move or modify your air conditioner.
• Seek professional help – contact an authorized dealer.
• 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

1.  Front Panel
2.  Air Inlet
3.  Display
4.  Air Filter
5.  Louver
6.  Grille
7.  Service valve

Display symbol represent:

Shows setting the temperature in normal operation.
Shows room temperature in FAN mode.
Display it for three seconds when the timer on is set, or activate Air purification, Swing, Turbo and Silence fuction.
Display it for three seconds when timer off is set, or cancel
Air purification, Swing, Turbo, and Silence fuction. Defrosting operation
Cold draft prevention
Self-clean
Freeze Protection
When ECO function is activated, the display illuminates in sequence as “ — — — setting temperature — …” in one second interval.
WLAN function (only for the model with the WLAN module)

Display symbols

Note : A guide on using the infrared remote controller refer to the remote controller manual

OPERATION

Operating Condition

| Indoor| Outdoor
---|---|---

Cooling operation

|

Upper limit

|

32°C DB

| 43°C DB (Fixed speed models)
46°C DB (Inverter models)
52°C DB (High ambient models)

Lower limit

|

18°C DB

| 18°C DB(Fix speed models)
-10°C DB (Fix speed models with low ambient kit)
-15°C DB (inverter models)

Heating operation

| Upper limit| 27°C DB| 24°C DB

Lower limit

|

0°C DB

| -10°C DB (Fixed speed models)
-15°C DB (Inverter models)
Note: DB – Dry Bulb

1.  Optimum performance will be achieved within these operating temperatures.

2.  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.

3.  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.

Manual Operation
Manual operation is available to control the unit when your remote is unavailable.

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.

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 per hour for the first 2 hours. Thereafter it keeps this new temperature for 5 hours before switching off automatically. For some units, it keeps running with this new temperature all the time until you adjust it. 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.

Directional Control

Adjusting vertical air flow

• Press “AIR DIRECTION” on remote controller to adjust vertical air flow direction. The louver position moves slightly each time the button is pressed.
• Press “SWING” to engage continuous louver motion.
  Note : Please refer to the REMOTE CONTROLLER MANUAL for

Adjusting horizontal air flow

Step 1
ISOLATE the unit at the MAIN switch (or unplug)
Step 2
Pull horizontal louver downwards using both hands.
Step 3
Identify the lever/s as indicated.
[On uppermost part of air outlet and linked to recessed vertical blades]
Step 4
Move the lever/s left or right to guide the air in the desired direction.
Step 5
ENERGISE the unit at the MAIN switch! (or plug back in) Attention: Isolating the main power supply synchronises the

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 – damage may 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.

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

• 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.

• Air Purification
  Ionizer
  Negative ions are added to the air to simulate the effects of forests and waterfalls on humans.
  Plasma
  Dust particles in the passing air stream are charged electrically. This enhances dust collection, odour reduction and reduces airborne bacteria mortality.

• Self Cleaning
  Airborne bacteria use the moisture on the indoor heat exchanger to grow. Regular drying of the exchanger prevents this growth. By simply pressing the “self clean” button, the controller will automatically manage the process.

• Turbo
  The Turbo function makes the unit work extra hard to reach your present temperature in the shortest time possible.

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

1. 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 self-supporting.
2. 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.
3. Unclip the small specialized filter.
4. Clean the large air filter/s with soapy water. Rinse with fresh water. Shake off excess water.
5. Vacuum clean the small filter/s. [Replace occasionally]
6. Refit the small filter onto the large filter.
7. Re-insert into unit in the reverse order described in point 2 above.
8. Close the front panel.

Storage Preparation [long idle periods]

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

Re-use After Storage

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

Preventative Maintenance Regularly check your unit for:

1.  Obstructed airflow through the indoor and outdoor units.
2.  Water or oil leaks.
3.  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.

TROUBLESHOOTING

Guides, Tips and Cautions

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

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.| Usuallycaused bychemicals, 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”.

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?

UNIT NOT RESPONDING AS REQUIRED?

• Record the product’s model number,
• Contact a suitable contractor,
• Share all observed details!

CAUTION
In the case of ANY of the following, turn off the unit immediately.

• Power cord is damaged or abnormally warm.
• Burning odours are smelled.
• Loud or abnormal sounds are heard.
• A power fuse blows or a circuit breaker trips frequently.
• Water or other objects fall into or out of the unit.
• Indicators blink continuously.
• A self-diagnostic code is displayed e.g. E0, E1, E2 … or P0, P1, P2… etc.

DO NOT ATTEMPT TO CORRECT THESE ITEMS YOURSELF!CONTACT A SPECIALIST SERVICE PROVIDER!

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