Haier HW-12LM03 User manual

Haier air conditioner Edition: 20070924
- 1 -
Domestic air conditioner
SERVICE MANUAL
zFeature
zFour side air flowing
zAuto Right/Left Swing
zSliding chassis design
HW-07LM03
Model
Model
Model
HW-12LM03
Model
HW-09LM03
Model

Haier air conditioner Edition: 20070924
- 2-
1. Product Code Illumination and Series
introduction
1). Model code rule description
Model identification:
A: Abbreviation of Haier
B: Abbreviation of Window
C: Nominal cooling capacity (BTU/h) with the first two numbers based on one thousand unit.
D: Function code
C - Cooling only
H - Heating pump
E - Electric aided heating
E: Developing sequence
F: The type of power supply
Examples:
HW-07/09/12LM03
It represents window air conditioner. Cooling capacity is 7000/9000/12000 BTU/h and the power
supply is 220V / 50Hz.
2). Standard situation/conditions
Indoor air state outdoor air state
No. Operating condition D.B. ℃W.B. ℃D.B. ℃W.B. ℃
1 Nominal cooling 32 23 43 26
2 Nominal heating / / / /
3 Nominal electrical Heating / / / /
3) Brief introduction of window air conditioner series
1. Temperature set knob can adjust the temperature of the air in room
2. Function set knob can control the fan speed as well as the cooling speed.
3. Vent helps you to exhaust any stale unwanted air in the room and draw fresh outside air in the
room.
HW- □□ □□ □□
A B C D E F

Haier air conditioner Edition: 20070924
- 3-
Content
1. Product Code Illumination and Series introduction...........................2
2. Specifications....................................................................................4
3. Main components and accessories' name........................................5
4. Maintenance ....................................................................................7
5. trouble shooting................................................................................11
6. System flow chart.............................................................................12
7. Wiring diagram................................................................................. 13
8. Installation and repairing...................................................................14
9. Compressor performance diagram...................................................17

Haier air conditioner Edition: 20070924
- 4 -
2. Specification
Item HW-07LM03 HW-09LM03
Cooling capacityBTU/h 2100 2500
Heating capacity BTU/h / /
Power supply 1, 220, 50 1, 220, 50
Power input W750 1000
Running current A 3.6 4.8
Cooling
EER BTU/(hW)2.8 2.5
Power input W/ /
Running current A / /
Heating
COP / /
Indoor side dB(A) 54/52 54/52
Sound Level Outdoor sidedB(A) 57/5457/54
Net 486x468x352 486x468x352
Dimension Package mm 565x568x447 565x568x447
Net 27 27
Weight Gross 32 32
ManufactureRUICHI RUICHI
Type 44R193AE-AJSC 44R233CF-AJSC
Compressor
Oil Charge ml 270 270
Heating side MPa 2.65 2.65
Pressure Cooling side MPa 0.65 0.65
Model R22
Refrigerant Charge 410 380
Indoor unit Centrifugal fanCentrifugal fan
Type Outdoor unit Axial fan Axial fan
High 1000 1000
Fan
Fan Speed Low920 920
Air volumem3360
Moisture removal 10-3m3/h
Exchanging pipe type/diameter mm / /
Fin material / /
BTU/(hW )
mm
Kg
Kg
R22
g
r/min
r/min
0.8 1.0
Unit
HW-12LM03
3500
/
1, 220, 50
1250
6.5
2.8
/
/
/
54/52
58/56
560x602x380
595x685x460
33
38
RUICHI
48R313AK-5JSE
370
2.65
0.65
R22
385
Centrifugal fan
Axial fan
890
820
450
/
/
1.2
360

Haier air conditioner Edition: 20070924
- 5 -
3. Main components and accessories' name
Front panel
Air inlet (indoor side)
Air outlet (indoor side)
Control panel
Air inlet (outdoor side)

Haier air conditioner Edition: 20070924
1
3
2
1.Auto swing switch
When the switch is set to "
- ",
and vertical louvers will swing from side to side,
delivering gentle air thus making you feel very
comfortable. When it is set to " O ", the indicator
goes out, and the vertical louvers stop at any position.
2.Mode selection switch
Mode selection switch controls the fan motor
speed and cooling speed.
<1>
<2>
<3>
<4>
<5>
When set to " HIGH FAN", fan motor runs at high
speed to blow out strong air.
When set to "LOW FAN", fan motor runs at low
speed to blow out gentle air.
When set to "LOW COOL", air conditioner will
start cooling at low speed, blowing out gentle air.
When set to "HIGH COOL", air conditioner will
start speedy cooling, blowing out strong air.
When set to "OFF", air conditioner stops running.
3.Thermostat switch
This switch controls the preset indoor temperature
to makethe air conditioner start or stop automatically,
so as to reduce power consumption and operate the
system both comfortably and economically.
- 6-

Haier air conditioner Edition: 20070924
Take out the air filter
When dirt accumulates on air filter, air circulation will be blocked, which causes poor
cooling. It is advisable to clean air filter every two weeks for longer operation.
1.Press the concave parts on both sides at
the lower part of air inlet grille to open the
air inlet grille.
2.Hold the hump of filter mesh with
fingers (as illustrated) and take it out.
Hump
Air filter cleaning (before cleaning, turn off the power)
Air filter cleaning
1.Gently flap the dirt off the air filter.
2.Carefully wash air filter in warm
water(below 40℃).To obtain better
cleaning effect,soap water or neutral
detergent may be used.
3.Flush air filter carefully with clean
water after removing dirt.Let it dry
completely.
Cleaning of the
air filter
- 7-

Haier air conditioner Edition: 20070924
- 8 -
Avoid opening doors and
windows unless necessary. Don't be exposed to cold air
for a long time.
Use curtain or blind
Direct sunlight may reduce
cooling effect, always use
window curtain.
Keep heat source away from
air conditioner.
Set temp. a little bit higher
before going to bed. After unit stops, don't restart it until 3 minutes have elapsed.

Haier air conditioner Edition: 20070924
- 9 -
Disposal of the condensed water
Generally there are two methods available on disposal of the condensed water:
1. Block the bottom plate hole of the conditioner with rubber lid, install drain elbows on the back hole
and let the condensing water flow from the back hole of the conditioner. (See Fig.1)
In this method, the accumulated condensed water in the bottom plate is hit by the fan onto the heat
exchanger, and evaporated and blown out from the machine. It can cool the heat exchanger radiator
more quickly, and improve the energy efficiency of the conditioner. But the hitting noise by the fan at the
outdoor side is relatively large.
2. Block the back hole of the conditioner with rubber lid and install drain elbow to the bottom hole, which
can make the condensed water flow out from the bottom plate. (See Fig.2)
This method can reduce the hitting noise by the fan at the outdoor side.
If necessary the above two methods can both have extra pipe added on the drain elbow (available on
the market).
Note:
When install drain elbow, adjust the direction of the drain elbow to make it be in line with
the hole in the rear of unit; Insert the drain tube into hole and twist 90°.
Before cleaning please pull of the power plug. Do not clean the machine with following
material in order to decrease pollution: petrol,
detergent.
Do not pour water on the machine to prevent
electric shock or mechanical trouble.
Hot water above 40℃may cause
discoloration of the shell or deformation.

Haier air conditioner Edition: 20070924
In cooling mode, after you turn thermostat switch counter-clockwise,
do not turn it back until at least 3 minutes have elapsed.
Otherwise, the fuse may blow due to overload.
Do not exceed the selection range.
Vertical airflow direction
Airflow Direction Vane
The Vertical Airflow Direction Vane is
manually controlled by positioning the
vane todischarge the air upward,
downward or straight out.
CAUTION
Note:
It is advisable not to keep vertical flap at downward position for a long time
in COOL or FAN mode, otherwise , condensate water might occur.
Don't move the horizontal flap with hand in order to avoid the vertical flap
abnormal, using the remote controller to adjust the move of vertical flap.
The horizontal air direction is adjusted
by setting the AUTO SWING switch to
the ON position.
- 10 -
Operation Guide