Haier AC42NACMCA user guide manual

OPERATION

MANUAL

No. 0010541722

CONVERTIBLE TYPE ROOM AIR CONDITIONER

AC142ACAAA AU142AFAAA (HCFU-14H03) AC142ACBAA AU142AFBAA (HCFU-14H03/R1) AC184ACMAA AU184AFMDA (HCFU-18C13) AC142ACMAA AU142AFMAA (HCFU-14C03) AC142ACNAA AU142AFNAA (HCFU-14C03/R1) AC182ACABA AU182AFABA (HCFU-18HC03) AC182ACMBA AU182AFMBA (HCFU-18CC03) AC182ACNBA AU182AFNBA (HCFU-18CA03/R1) AC242ACAAA AU242AHAAA (HCFU-24H03)

AC242ACBAA AU242AHBAA (HCFU-24H03/R1) AC282ACMBA AU282AHMCA (HCFU-28CC03) AC242ACNAA AU242AHNAA (HCFU-24C03/R1) AC282ACABA AU282AHACA (HCFU-28HC03) AC282ACBBA AU282AHBCA (HCFU-28HC03/R1) AC284ACMAA AU284AHMBA (HCFU-28C13) AC282ACNAA AU282AHNBA (HCFU-28CA03/R1) AC28NACNAA AU28NAHNBA (HCFU-28CB03/R1)

AC36NACAAA AU36NAIAAA (HCFU-36H03) AC42NACABA AU42NAIAEA (HCFU-42HC03) AC42NACMCA AU42NAIMBA (HCFU-42CC03) AC42NACNAA AU42NAINBA (HCFU-42CA03/R1) AC42NACBBA AU42NAIBCA (HCFU-42HC03/R1) AC36NACMAA AU36NAIMBA (HCFU-36C03) AC36NACBAA AU36NAIBAA (HCFU-36H03/R1) AC36NACNAA AU36NAINAA (HCFU-36C03/R1)

CONTENTS

CAUTIONS

..........................................................................

SAFETY PRECAUTIONS

.....................................................

FEATURES AND FUNCTIONS

............................................

NAME OF PARTS

...................................................................

INTRODUCTION TO SPARE PARTS

.................................

INSTALLATION

......................................................................

REMOTE CONTROLLER OPERATION

...............................

GUIDE TO OPERATION

................................................

CLEANING AND CARE

................................................

TROUBLE SHOOTING

..................................................

OPERATIONG TIPS

.............................................................

1-2

6-7

10-17

18-19

20-21

CAUTIONS

Disposal of the old air conditioner

Before disposing an old air conditioner that goes out of use, please make sure it's inoperative and safe. Unplug the air conditioner in order to avoid the risk of child entrapment.

It must be noticed that air conditioner system contains refrigerants, which require specialized waste disposal. The valuable materials contained in a air conditioner can be recycled. Contact your local waste disposal center for proper disposal of an old air conditioner and contact your local authority or your dealer if you have any question. Please ensure that the pipework of your air conditioner does not get damaged prior to being picked up by the relevant waste disposal center, and contribute to environmental awareness by insisting on an appropriate, anti-pollution method of disposal.

Disposal of the packaging of your new air conditioner

All the packaging materials employed in the package of your new air conditioner may be disposed without any danger to the environment.

The cardboard box may be broken or cut into smaller pieces and given to a waste paper disposal service. The wrapping bag made of polyethylene and the polyethylene foam pads contain no fluorochloric hydrocarbon.

All these valuable materials may be taken to a waste collecting center and used again after adequate recycling.

Consult your local authorities for the name and address of the waste materials collecting centers and waste paper disposal services nearest to your house.

Safety Instructions and Warnings

Before starting the air conditioner, read the information given in the User's Guide carefully. The User's Guide contains very important observations relating to the assembly, operation and maintenance of the air conditioner.

The manufacturer does not accept responsibility for any damages that may arise due to non-observation of the following instruction.

Damaged air conditioners are not to be put into operation. In case of doubt, consult your supplier.

Use of the air conditioner is to be carried out in strict compliance with the relative instructions set forth in the User's Guide.

Installation shall be done by professional people, don't install unit by yourself.

CAUTIONS

When installation in under ceiling, dial switch "K1" in the PC board to "D" position. When installation in floor console, dial switch to "L" position (Brand new unit is in "D" position).For series 14,

18.

For series 14,18, the all-pole disconrexion connection method should be applied in the power supply. For series 24,28,36,42,the breaker of the air conditioner should be all-pole switch;and the distance between its two contacts should be no less 3mm. Such means for disconnection must be incorporation in the fixed wiring.

For the purpose of safety, the air conditioner must be properly grounded in accordance with specifications.

Always remember to unplug the air conditioner before opening inlet grill. Never unplug your air conditioner by pulling on the power cord. Always grip plug firmly and pull straight out from the outlet.

All electrical repairs must be carried out by qualified electricians. Inadequate repairs may result in a major source of danger for the user of the air conditoiner.

Do not damage any parts of the air conditioner that carry refrigerant by piercing or perforating the air conditioner's tubes with sharp or pointed items, crushing or twisting any tubes, or scraping the coatings off the surfaces. If the refrigerant spurts out and gets into eyes, it may result in serious eye injuries.

Do not obstruct or cover the ventilation grille of the air conditioner. Do not put fingers or any other things into the inlet/outlet and swing louver.

Do not allow children to play with the air conditioner. In no case should children be allowed to sit on the outdoor unit.

Specifications

The refrigerating circuit is leak-proof.

SAFETY PRECAUTIONS

WARNING!

DANGER!

CAUTION!

Do not attempt to install this air conditioner by yourself. This unit contains no user-serviceable parts. Always consult authorized service personnel for repairs. When moving, consult authorized service personnel for disconnection and installation of the unit. Do not become excessively chilled by staying for lengthy periods in the direct cooling airflow. Do not insert fingers or objects into the outlet port or intake grills. Do not start and stop air conditioner operation by connecting and disconnecting the power supply cord and so on. Take care not to damage the power supply cord. In the event of a malfunction (burning smell, etc.), stop operation immediately, turn off the circuit breaker, and consult authorized service personnel.

Provide occasional ventilation during use. Do not direct air flow at fireplaces or heating apparatuses. Do not climb on place objects on the air conditioner. Do not hang objects from the indoor unit. Do not set flower vases or water containers on top of the air conditioner. Do not expose the air conditioner directly to water. Do not operate the air conditioner with wet hands. Do not pull power supply cord. Turn off power source when not using the unit for extended periods. Check the condition of the installation stand for damage. Do not place animals or plants in the direct path of the air flow. Do not drink the water drained from the air conditioner. Do not use in applications involving the storage of foods, plants or animals, precision equipment, or art works. Do not apply any heavy pressure to radiator fins. Operate only with air filters installed. Do not block or cover the intake grill and outlet port. Ensure that any electronic equipment is at least one metre away from either the indoor or outdoor unit. Avoid installing the air conditioner near a fireplace or other heating apparatuses. When installing the indoor and outdoor unit, take precautions to prevent access to infants. Do not use inflammable gases near the air conditioner.

For series 14,18, if the power supply cord of this air conditioner is damaged, it must be replaced by the manufacturer its authorized service personnel only. For series 24,28,36,42, the breaker of the air conditioner should be all-pole switch; and the distance between its two contacts should be no less 3mm. Such means for disconnection must be incorporation

in the fixed wiring. Use copper wire only. All the cables shall have got the European authentication certificate. For series 14,18, the power supply connects from the indoor side. For series 24,28,36,42, the power supply connects from the outdoor side. The power cable and connecting cable are self-provided. The parameter of connecting cable: For AC182ACABA, AU182AFABA, (HCFU-18HC03), AC142ACAAA,AU142AFAAA(HCFU-14H03), AC142ACBAA, AU142AFBAA, (HCFU-14H03/R1)

H05RN-F 4G 0.75mm2, H07RN-F 2x2.0mm2. For AC182ACMBA, AU182AFMBA, (HCFU-18CC03), AC184ACMAA, AU184AFMDA (HCFU-18C13), AC182ACNBA, AU182AFNBA, (HCFU-18CA03/R1), AC142ACMAA, AU142AFMAA(HCFU-14C03), AC142ACNAA,AU142AFNAA,(HCFU-14C03/R1).

H07RN-F 3G 2.0mm

For series 24,28,36,42, H05RN-F 4G 0.75mm

. The power cable and connecting cable are self-provided. The requirement of the corss section area of the power supply cord: For series 14,18, H07RN-F 3G 2.5mm

. For series 24,28(Power supply:1PH,220-230V~,50Hz), H07RN-F 3G 4.0mm2. For series 28(Power supply:380-400V,3N~, 50Hz), 36,42, H07RN-F 5G 2.5mm2.

FEATURES AND FUNCTIONS

AUTOMATIC OPERATION

SLEEP

HEAT & COOL TYPE

Merely press the ON/OFF button, and the unit will begin automatic operation in any of the Heating, Cooling and Blow modes as appropriate, in accordance with the thermostat setting and the actual temperature of the room.

COOLING TYPE

When the SLEEP button is pressed during Cooling or Dry mode, the thermostat setting gradually rises during the period of operation. When the set time is reached, the unit automatically turns off.

HEAT & COOL TYPE

When the SLEEP button is pressed during Heating mode, the air conditioner's thermostat setting gradually lowers during the period of operation; When the set time is reached, the unit automatically turns off.

WIRELESS REMOTE CONTROL UNIT

The WIRELESS REMOTE CONTROL UNIT allows convenient control of air conditioner operation.

MILDEW-RESISTANT FILTER

The AIR FILTER has been treated to resist mildew growth, thus allowing cleaner use and easier care.

COOLING TYPE

Merely press the ON/OFF button, and the unit will begin automatic operation in the Cooling or dry modes as appropriate, in accordance with the thermostat setting and the actual temperature of the room.

NAME OF PARTS

Fig.1 Indoor Unit

1 Operating Control Panel (Fig.2) 2 Emergency switch 3 Remote Control Signal Receiver 4 Power Indicator Lamp (Red) 5 OPERATION Indicator Lamp (Green) 6 TIMER Indicator Lamp (Yellow) 7 Compressor Run Lamp (Green) 8 Intake Grill (Fig.3) 9 Air Filter

UP/DOWN Air Direction Flaps

RIGHT/LEFT Air Direction Louvers (behind UP/DOWN Air Direction Flaps) 12

Power Plug

Fig.4 Outdoor Unit

Intake grill 14 Outlet grill 15 Pipe Unit

Fig.1

1110

for series 14,18

For series 24,28

Fig.2

POWER

OPER

TIMER

COMP

EMER

5 6

POWER OPER

TIMER

EMER

Fig.3

Fig.4

For series 36,42 For series 14,18

for series 36,42

for series 24,28

INTRODUCTION TO SPARE PARTS

Buttons and display of the remote controller.

Operation

CLOCK

MODE

SWING

Power ON/OFF

TEMP

FAN

SLEEP

SET

HOUR

RESET

LOCK

TIMER

Used for unit start and stop.

Used to set auto fan direction.

Used to select AUTO run, COOL,DRY,HEAT and FAN operation.

Used to set correct time.Used to set correct time.

Used to select TIMER ON, TIMER OFF, TIMER ON/OFF.

Used to lock buttons and LCD display.

Used to reset the controller back to normal condition.

Used to set clock and timer setting.

Used to confirm Timer and Clock settings.

Used to select sleep mode.

Used to select fan speed: LO, MID, HI, AUTO

Used to select your desired temp.

Note:

1. The above information is theexplanation of the displayed information therefore varies with those displayed in actual operation.

2. This type only has the relevant function and display as indicated in the above figure.

INTRODUCTION TO SPARE PARTS

Hints

MID

HI AUTO

Buttons and display of the remote controller.

Operation

DRY

COOL

AUTO

SWING

FAN SPEED

SLEEP

Clock set

TIMER ON

TIMER OFF

LOCK

CLOCK

TEMP.

SIGNAL SENDING

FAN OPERATION

HEAT

When unit is started for the first time and after replacing batteries in remote controller, clock should be adjusted as follows: Press CLOCK button, "AM" or "PM" flashes. Press or to set correct time. Each press will increase or decrease 1min. If the button is kept depressed, time will change quickly. After time setting is confirmed, press SET, "AM "and "PM" stop flashing, while clock starts working.

After replacing with new batteries, remote controller will conduct self-check, displaying

all information on LCD. Then, it will become normal.

INSTALLATION

WARNING !

CAUTION !

Please ask the dealer or specialist to install, never try by the users themselves. After the installation please

be sure of the following conditions.

Incorrect installation may cause water leaking, shock and fire hazard.

Please call dealer to install the air-conditioner.

Air-conditioner can't be installed in the environment with inflammable gases because the inflammable gases near to air-conditioner may cause fire hazard.

Installed electrical-leaking circuit breaker.

Connect earthing wire.

Use discharge pipe correctly to ensure efficient discharge.

[Location]

[Wiring]

[Operating noise]

It easily cause electrical shock without circuit breaker.

Air-conditioner should be located in well-vented and easily-accessible place. Air-conditioner should not be located in the following places: (a) Places with machine oils or other oil vapours. (b) Seaside with high salt content in the air. (c) Near to hot spring with high content of sulfide gases. (d) Area with frequent fluctuation of voltage e.g. factory, etc. (e) In vehicles or ships. (f) Kitchen with heavy oil vapour or humidity. (g) Near to the machine emitting electric-magnetic waves. (h) Places with acid, alkali vapuor. TV, radio, acoustic appliances etc are at least 1 m far away to the indoor unit, outdoor unit, power

Earthing wire should not be connected to the gas pipe, water pipe, lightning rod or phone line, incorrect earthing may cause shock.

Incorrect pipe use may cause water leaking.

supply wire, connecting wire, pipes, otherwise images may be disturbed or noises be created. As required, take measures against heavy snow.

Air-conditioner should be equipped with special power supply wire.

Choose the following locations: (a) Capable of supporting air-conditioner weight, don't increase operating noise and vibration. (b) Hot vapour from outdoor unit outlet and ope rating noise don't disturb neighbour. No obstacles around the outdoor unit outlet.

Earthing

REMOTE CONTROLLER OPERATION

When in use, put the signal transmission head directly to the receiver hole on the indoor unit.

The distance between the signal transmission head and the receiver hole should be within 7m

without any obstacle as well.

Don't throw the controller, prevent it from being damaged.

When electronic-started type fluorescent lamp or change-over type fluorescent lamp or wireless

telephone is installed in the room, the receiver is apt to be disturbed in receiving the signals so

the distance to the indoor unit should be shorter.

Loading of the battery

Load the batteries as illustrated.

2R-03 batteries, resetting key (cylinder)

Remove the battery cover :

Load the battery :

Be sure that the loading is in line with the " + " / " - " pole request as

illustrated.

Put on the cover again

Confirmation indicator :

In disorderation, reload the batteries or load the new batteries

after 5mins.

Note :

Use two new same-typed batteries when loading.

If the remote controller can't run normally or doesn't work at all,

use a sharp pointed item to press the reset key.

Hint :

Remove the batteries in case unit won't be in usage for a long period.

If there is any display after taking-out just need to press reset key.

Remote controller's operation

GUIDE TO OPERATION

FAN operation

Remote controller can memorize settings in each operation mode. To run it next time just select the operation mode and it will start with the previous setting. No reselecting is needed.(TIMER ON/OFF needs reselecting)

Hints

(1) Unit start

(2) Select operation mode

(3) Fan

(4) Unit stop

AUTO COOL DRY HEAT FAN

Press ON/OFF button, unit starts. Previous operation status appears on display. (Not Timer setting) Power indicator on indoor unit lights up.

Press MODE button. For each press, operation mode changes as follows:

Press FAN button. For each press, fan speed changes as follows:

Unit will run at selected fan speed. Adjust air flow direction if necessary, refer to page15.

Press ON/OFF button. Only time remains on LCD. All indicators on indoor unit go out. Vertical flap closed automatically.

MID HI

GUIDE TO OPERATION

AUTO run, COOL,HEAT and DRY operation

Use COOL in summer. Use HEAT in winter. Use DRY in spring,autumn and in damp climate.

(1) Unit start

(2) Select operation mode

(3) Select temp.setting

Press ON/OFF button, unit starts.

Previous operation status appears on display.(Not Timer setting)

Power indicator on indoor unit lights up.

Press MODE button. For each press, operation

mode changes as follows:

Unit will run in operation mode displayed on LCD.

Stop display at your desired mode.

Hints

Unit will start running to reach the temp. setting on LCD.

Remote controller can memorize each operation status. When starting it next time,

just press ON/OFF button and unit will run in previous status.

AUTO COOL DRY HEAT FAN

Recommendations

GUIDE TO OPERATION

Press FAN button. For each press, fan speed changes as follows:

(4) Fan speed selection

AUTO

MID HI AUTO

Press ON/OFF button.

Only time remains on LCD.

All indicators on indoor unit go out.

Vertical flap closes automatically.

(6) Unit stop

Hints

COOL operation starts when room temp. is higher than temp. setting.

On reaching temp. setting,unit will run in mild DRY mode.

Ultra-low air flow

Temp. setting

(5) Air flow direction adjust

After operation mode is selected, vertical flap will open automatically according to the mode.

GUIDE TO OPERATION

TIMER operation

Hints

Set Clock correctly before starting Timer operation(refer to page 7)

You can let unit start or stop automatically at following times: Before you wake up in the morning, or get back from outside or after you fall asleep at night.

TIMER ON/OFF

(1)After unit start, select your desired operation mode. Operation mode will be displayed on LCD. Power indicator on indoor unit lights up.

(2)TIMER mode selection

Press TIMER button to change TIMER mode. Every time the button is pressed, display changes as follows:

Select your desired TIMER mode (TIMER ON or TIMER OFF) ON or OFF will flash.

(3)Timer setting

(4)Confirming your setting

After setting correct time, press SET button to confirm "ON" or "OFF" stops flashing Time displayed: Unit starts or stops at x hour x min (TIMER ON or TIMER OFF). Timer mode indicator on indoor unit lights up.

To cancel TIMER mode

Just press TIMER button several times until TIMER mode disappears.

After replacing batteries or a power failure happens, Time setting should be reset. Remote controller possesses memory function, when use TIMER mode next time, just press SET button after mode selecting if timer setting is the same as previous one.

GUIDE TO OPERATION

Every time the button is pressed, time increases 10min. If button is kept depressed, time will change quickly. Every time the button is pressed, time decreases 10min. If button is kept depressed, time will change quickly. Time will be shown on LCD. It can be adjusted within 24hours. AM refers to morning and PM to afternoon.

TIMER ON-OFF

Operation mode will be displayed on LCD. Power indicator on indoor unit lights up.

(3)Time setting for TIMER ON

(4)Time confirming for TIMER ON

After time setting, press TIMER button to confirm. "ON" stops blinking, While "OFF" starts blinking. Time displayed: Unit starts at X hour X min.

To cancel TIMER mode

Just press TIMER button several times until TIMER mode disappears.

According to the Time setting sequence of TIMER ON or TIMER OFF, either Start-Stop or

Stop-Start can be achieved.

Press HOUR button.

(1)After unit start, select your desired operation mode

Every time the button is pressed, display changes as follows:

(2)Press TIMER button to change TIMER mode

blank

TIMER OFFTIMER ON TIMER ON-OFF

Select TIMER ON-OFF, "ON" will flash.

(5)Time setting for TIMER OFF

Follow the same procedures in "Time setting for TIMER ON".

(6)Time confirming for TIMER OFF

After time setting, press SET button to confirm "OFF" stops flashing.

Time displayed: Unit starts at X hour X min.

GUIDE TO OPERATION

Adjusting up/down air flow direction

Up/down direction can be adjusted by using the SWING button on the remote controller.

Each time pressing this button, the mode changes in the following sequence.

SWING

No indication (louver stopped)

Change to the AIRFLOW mode.

SWING

LOUVER STOPPED

Louver moves in upward and

downward directions continuously.

When the LOUVER button is

pushed during SWING mode,

it stops swinging at the just

angle.

Recommendable stopping angle of the louver

Avoid direct air flow to the body for many hours. Avoid downward blowing operation of cooling mode for many hours. Do not touch the swing louver during swing operation. Please use the Swing button of remote controller. If adjusted by hand, it would cause an injure. (Only for 24,28,36,42 series.)

CAUTION

COOL and DRY

HEAT

(Horizontal Blowing)

(Downward Blowing)

GUIDE TO OPERATION

about 6 hrs

1 hr

LOCK

RESET

Comfortable Sleep

At night, before going to bed you can press down the SLEEP button on the controller and the air-conditioner will run by the comfortable sleeping mode to make you sleep more comfortable.

In cooling, dehumidifying mode

In heating mode

Note: In AUTO mode, unit will run in SLEEP function according to the operation mode. After setting SLEEP function, it is forbidden to calibrate clock. If the set sleep-time does not reach 8 hours, the unit will stop operation automatically after set time is complete. Set "TIMER-OFF" function first, then set SLEEP, and the sleep-set is performance; set TIMERON function first, the sleep function can only be set before TIMER-ON; if set theSLEEP function first, the TIMER function can not be set. After setting SLEEP, press CLOCK button to show the time; press TEMP. button to show the temperature; press again to change temperature.

TEMP

SWING

FAN

OFF

MODE

SLEEP

SET

CLOCK

TIMER

SETTING T

SLEEP RUN BEGINS SLEEP RUN STOPS

1 hr

3 hrs

about 3 hrs

SHUT DOWN

SLEEP RUN STOPS

Heat mode

SLEEP RUN BEGINS

SETTING T

SHUT DOWN

Cooling mode

OFF

GUIDE TO OPERATION

Remote Control:

There is a telecommunication interface for remote control on the control panel of the indoor unit.

After the peripheral equipment have been installed in accordance with the instruction manual of

the selected remote control detector, the air conditioner will be computerized and controlled from a

far-away place.

Power Failure Compensation (to be applied for a necessary situation)

Setting Method: When the remote controller is on (excluding timer mode and fan mode),

press the "Sleeping" button on the remote controller 10 times within 5

seconds, and after the buzzer rings 4 times, the air conditioner will enter

the state of power failure compensation.

Cancel Method: Press the "Sleeping" button on the remote controller 10 times within 5

seconds, and after the buzzer rings 2 timer, the power failure compensation

mode will be cancelled.

Notes: When a power failure suddenly occurs during the air conditioner is working after the power

failure compensation is set, if the air conditioner will not be used for a long time, please cut off the

power supply to prevent its operation from being resumed after the power is supplied again, or press

the "Switch On/Off" button after the power comes again.

After the power failure compensation is set, if power failure suddenly occurs while the air conditioner

is working, it will resume the previous working state when the power is supplied again.

CLEANING AND CARE

CAUTION!

Before cleaning the air conditioner ,be sure to turn it off and disconnect the Power Supply Cord. Be sure the Intake Grill is installed securely. When removing and replacing the air filters, be sure not to touch the heat exchanger, as personal injury may result.

Cleaning the Air Filter

(For Series 14,18)

Open the Intake Grill

1. Pull out both sides and the center of the Intake Grill.

2. Pull the Air Filters upward to remove them.

3. Clean the Air Filters.

5. Push in both sides and the center of the Intake Grill.

4. Re-attach the Air Filters to the Intake Grill.

Push the Air Filter handles away from the Intake Grille in direction as illustrated, then pull out Air Filters.

Remove the dust from the Air Filters by vacuum cleaner or washing them. After washing, allow the Air Filters to dry thoroughly in an area protected from sunlight.

The Filters fit onto the inside of the intake Grill. (figure 1) The bottom edges of the Air Filters should fit into the filter brackets. (figure 1) The Air Filters should be pushed down so that their top edges fit under the projections at the top of the Intake Grill. (figure 2)

Dust can be cleaned from the Air Filter either with a vacuum cleaner, or by washing the filter in a solution of mild detergent and warm water. If you wash the filter, be sure to allow it to dry thoroughly in a shady place before reinstalling. If dirt is allowed to accumulate on the Air Filter, air flow will be reduced, lowering operating efficiency and increasing noise. During periods of normal use, the Air Filters should be cleaned every two weeks.

(Figure 1)

Filter bracket

Air Filter

(Figure 2)

Handle

Air Filter

Bracket

Base

About 30 mm

Arm

Intake Grill

Arm

Notch

Hook

Side Panel

CLEANING AND CARE

CAUTION!

The following four procedures are for series 24,28,36,42.

1. Press the two buttons on the filters, until you hear a sound of click.

2. Pull the filters upward to remove them from the Intake Grill.

3. Clean the air filter: Remove the dust from the filters by vacuum cleaner or washing them. After washing, allow the air filters to dry thoroughly in an area protected from sunlight.

4. Re-attach the air filters to the Intake Grill, press the two buttons on the filters, until you hear a sound of click.

When used for extended periods, the unit may accumulate dirt inside, which reduces its performance. We recommend that the unit is inspected regularly, in addition to your own cleaning and care. For more information, consult authorized service personnel. When cleaning the unit's body, do not use water hotter than 40C, harsh abrasive cleansers, or volatile agents like benzene or thinner. Do not expose the unit body to liquid insecticides or hairsprays. When shutting down the unit for one month or more, first allow the Fan mode to operate continuously for about half a day to allow internal parts to dry thoroughly.

TROUBLE SHOOTING

Followings are not problems

Sound of water flowing is not a problem.

Sound of cracking is heard.

Smell are generated.

During operation, white fog or steam comes out from the indoor unit.

No outlet air or fan speed can't be changed in dry mode.

In cooling operation, unit switches to blowing operation.

Won't start?

In heating operation, water or steam are blown out of outdoor unit.

In heating operation, indoor fan won't stop even if unit is stopped.

During unit operation or at stop, a swishing or gurgling noise may be heard. This noise is generated by refrigerant flowing in the system.

Unit will not restart after stop.

During unit operation, a cracking noise may be heard. This noise is generated by the casing expanding or shrinking because of temperature changes.

This is because the system circulates smells from the interior air such as the smell of cigarettes or the painting on the furniture.

When unit is running at places like restaurant, etc. where dense edible oil fumes always exist, this will happen.

To prevent frost from accumulating on indoor heat exchanger, unit will switch to blowing operation for a while then resume cooling operation.

Though ON/OFF button is set to ON, unit won't resume cooling, dry or heating operation in 3 min after it is stopped, this is because of 3-min-delay protection circuit.

Please wait 3 minutes

Unit will reduce fan speed repeatedly and automatically if room temp. is too low in dry operation.

This occurs when frost accumulated on the outdoor unit is removed. (during defrosting operation)

After unit stop, indoor fan will go on running until indoor unit cools down.

Before ask for services, please first check your unit against the following.

Air conditioner won't start.

Poor cooling or heating

Is power supply switch turned on?

Power supply switch is not set at ON.

Is city power supply normal? Is leakage current breaker

activated?

This is very dangerous, please disconnect power supply immediately and contact your dealer.

Are operation control adjusted correctly as specified?

Is air filter too dirty?

Are there any obstacles in inlet or outlet grill?

Are horizontal louvers at up position (in heating mode)?

Any doors or windows left open?

Is there any direct sunlight in the room?

If there are unexpected heat sources in the room?

Too many people in the room?

Poor cooling

Is air conditioner in standby condition in heating mode?

Cold air blows out (in heating mode)

If your unit still can't work properly after above mentioned checks, or following problems occur, please stop it immediately and contact your dealer. Fuses or circuit breakers often blow out. Water comes out in cooling/dry operation. Operation is abnormal or sound is heard.

Power failure?

Proper temp

TROUBLE SHOOTING

Operation and Performance

*Heating Performance

*Microcomputer-controlled Automatic Defrosting

Heat-pump air conditioners heat your entire room by recirculating air throughout the room, with the result that some time may be required after first starting the air conditioner until the room is heated.

This air conditioner operates on the heat-pump principle, absorbing heat from outdoor air and transferring that heat indoors. As a result, the operating performance is reduced as outdoor air temperature drops. If you feel that insufficient heating perfomance is being produced, we recommend you use this air conditioner in conjunction with another kind of heating appliance.

Instructions relating to heating (*) are applicable only to "HEAT & COOL TYPE".

When using the Heating mode under conditions of low outdoor air temperature high humidity, frost may form on the outdoor unit, resulting in reduced operating performance.

In order to prevent this kind of reduced performance, this unit is equipped with a Microcomputer-controlled Automatic Defrosting function. If frost forms, the air conditioner will temporarily stop, and the defrosting circuit will operate briefly (for about 7 to 15 minutes).

During Automatic Defrosting operation, the OPERATION Indicator Lamp will flash.

*Trouble alarming performance

Only for series 24,28,36,42 During operation, when there is any trouble, the power indicator lamp will flash.

Temperature and Humidity Range

Cooling

Heating

indoor

outdoor

indoor

outdoor

32/23

18/14

43/26

27/-

20/-

24/18

-7/-8

If the air conditioner is used under higher temperature condition than those listed, the built-in protection circuit may operate to prevent internal circuit damage. Also, during Cooling and Dry modes, if the unit is used under conditions of lower temperature than those listed above, the heat-exchanger may freeze, leading to water leakage and other damage. Do not use this unit for any other purposes except for the Cooling, (*) Heating, Dehumidifying, and air-circulation of rooms in ordinary dwellings. The wiring method should be in line with the local wiring standand. The waste battery should be disposed properly. If the fuse on PC board is broken, please change it with the type T 3.15A/250V. The indoor unit installation height is at least 2.5m, only for series 36,42.

OPERATING TIPS

Haier AC42NACMCA user guide manual

Specifications and Main Features

Frequently Asked Questions

User Manual