Haier HSU--12HD03/R2 User manual

SERVICE MANUAL
Air Conditioners
CAUTION
READ THIS MANUAL CAREFULLY TO
DIAGNOSE TROUBLE CORRECTLY
BEFORE OFFERING SERVICE .
THIS MANUAL IS USED BY
QUALIFIED APPLIANCE
TECHNICIANS ONLY. HAIER
DOES NOT ASSUME ANY
RESPONSIBILITY FOR PROPERTY
DAMAGE OR PERSONAL INJURY
FOR IMPROPER SERVICE
PROCEDURES DONE BY ONE
UNQUALIFIED PERSON.
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Edition:2006/1/10
MODEL: HSU-MODEL: HSU-12HD03/R2

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IMPORTANT INFORMATION
ƽҏFeatures
ƽҏComfortable: wide-angle airflow
ƽhealth air purifying
ƽquiet operation
ƽҏsuper energy efficient
ƽMain Specification
ƽCoolingCapacityΚ3500W
ƽRated Power/Current(cooling)Κ1090W/5.2A
ƽEER: 3.21
ƽHeatingCapacityΚ3650W
ƽRated Power/Current(heating): 1010W/5.0A
ƽCOP: 3.61
ƽAirVolume(Indoor):500m3/h
ƽPower: 1PH 220-230V~ 50 Hz
MODEL: HSU-12HD03/R2

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Edition:2006/1/10
Safety Information
General Information
This Service Manual describes the operation,disassembly,troubleshooting,and repair of Haier Room Air
Conditioners,etc. It is intended for use by authorized servicers who troubleshoot and repair these units.
NOTE:It is assumed that users of this manual are familiar with the use of tools and equipment used to
troubleshoot and repair electrical,mechanical,and refrigeration systems;and understand the terminology
used to describe and discuss them.
Haier urges you read and follow all safety precautions and warnings contained in this manual. Failure
to comply with safety information may result in severe personal injury or death.
Related Publications
This is a base service manual,covering a range of similar models.It is intended to be used in
conjunction with the Parts Manual and Technical Sheet covering specific model being serviced.
General Precautions and Warnings
WARNING
To avoid risk of personal injury or death due to electrical shock,disconnect electrical power to unit
before attempting to service the unit.
WARNING
To avoid risk of personal injury or death due to electrical shock,DO NOT,under any circumstances,alter
the grounding plug .Air conditioner must be grounded at all times.Do not remove warning tag from power
cord.If a two-prong (non-grounding) wall receptacle is encountered,contact a qualified electrician and
have the receptacle replaced with a properly grounder wall receptacle in accordance with the National
Electrical Code.
WARNING
To avoid risk of personal injury or death due to electrical shock,grounding wires and wires colored like
grounding wires are NOT to be used as current carrying conductors.The standard accepted color coding
for ground wires is green or green with a yellow stripe.Electrical components such as the compressor
and fan motor are grounded through an individual wire attached to the electrical component and to
another part of the air conditioner.Grounding wires should not to be removed from i ndividual components
while servicing,unless the component is to be removed and replaced.It is extremely important to replace
all removed grounding wires before completing service.
WARNING
To avoid risk of heat exposure,which may cause death or severe illness,air conditioner must be
monitored when malfunctions or shuts down.

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CONTENTS
1.SPECIFICATION...............................................................................1
2.ACCESSORIES ................................................................................3
4.OPERATION......................................................................................5
5.ELECTRI CAL CONTROLL............................................................. 21
6.TROUBLE SHOOTING...................................................................28
7. INSTALLATION...............................................................................33
8. CIRCUIT AND WIRING DIAGRAM.............................................42,44

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SPECIFICATION
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Edition:2006/1/10

Model˖HSU-12HD03/R2Brand Mark˖-----
Cooling Capacity˖3500WFrequency Range˖50Hz
RatedPower/Current˖1090W/5.2APower1PH220-230V~ 50 Hz
MaxPower/Current˖1620W/8.3A
Cooling
EER3.21
Model×Sectional Area˖--------
Heating Capacity˖3650W
Power Cord
Refer. No.˖--------
RatedPower/Current˖1010W/5.0ACompressor
manufacturer/Type
MaxPower/Current˖1600W/
8.0A
Heating
COP3.61
Compressor
O
il
c
h
a
r
ge
Power/Current of
Electric Heating˖----- Type/NetCharge˖R410A800g
Operating temp. range -7OC-43OCAdditional Charge for
exhausting air.
----- g
H˖1350 r/min
Refrigerant
Charge if over Standrad
Pipe Lenth
---g/m
M˖1100r/min Lenth×Internal/External
Diametre
-----
Indoor
Velocity
L˖920 r/min
Capilary
Refer No.˖-----
H˖1000 r/minIndoor˖1.30 mm
H˖---- r/min
Height of rising
radiator slice
Outdoor˖1.37 mm
H˖---- r/minNet˖7.6kg
Outdoor
Velocity
Indoor Weight
Gross˖10.6kg
Net˖37kg
Indoor˖500 m3/h
Outdoor Weight
Gross˖42kg
Air
Volume
(High) Outdoor˖----- m3/hIndoorDimension(L×W×H)˖795×265×182 mm
CapacitorofFan Motor˖……IndoorPackaging Dimension(L×W×H)865x272x330 mm
Class ofelectricShock Protection ĉOutdoorDimension (L×W×H)˖855×331×596 mm
Class ofWaterProof˖IP24 OutdoorPackaging dimension(L×W×H)876×364×638 mm
MoistureRemoval˖1.5×10-3m3/hliquid /Gas pipeDiametreij6.35/9.52 mm
Model˖Hstandard Lenth5m Remote
Controller Refer. No.˖0010413791
Refrigerant
Pipe
Max Lenth 15 m
Remote Controller Bracket˖----- Lenth/Diametre of Drain Hose 4.15 MPa
Appearance˖----- Max. pressure at warm side˖4.15 MPa
Climate Type˖T1 Max.pressure at cool side˖---
Installation Bracket Type˖----- Plug Type(spec.)˖---
Area availableforclooling/heating 15-23 m2Ammeterspec.˖---
Dry/Wetball(indoor)˖32℃/223 ćDry/Wetball(indoor)：２７ /ć--ć
Max.running
temperature(cooling):
Dry/Wetball(outdoor)˖43/26ćć
Max.running
temperature(heating):
Dry/Wetball(outdoor):２４℃／１８℃
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ACCESSORIES
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Edition:2006/1/10

Number Name Refer No. Description Quality Failure
Rate(%) Remark
1remote
controller 0010413791 None 1 0.2
*
2 battery 001A4600001 None 2 0.1
3mounting
plate0010101275
Fix mounting plate
according to
installation position
and pipe direction
0
4 drain pipe 001A0900011
Choose the place
that can drain
water and connect
pipe easily
1 0.1
5connecting
pipe ----
The maximal
length of the
connecting pipe is
15m,the maximal
height between
indoor unit and
outdoor unit is 5m
1 0.2
*
6connecting
wire----
The conecting
methods include
ring terminal and
direct
terminal .Ring
terminal
connecting
method:Unscrew
the screws ,and
put it through the
ring of connecting
line ends,then
connect it into the
terminal block.
Direct terminal
connecting
method:unscrew
the screws,then
fully insert the
cable ends into.
.
10.2
*
7 manual 001A7265614 Operation 1 0
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OPERRATION
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Edition:2006/1/10

1
2-4
5-12
13-14
15
Contents
Cautions
Parts and functions
Operation
Maintenance
Trouble shooting
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Edition:2006/1/10