Haier HSU-24H03/Z User manual

Domestic Air Conditioner
SERVICE MANUAL
Models :
lFeatures
lComfortable:wide-angle airflow
Health air purifying
Quiet operation
Wide variety of functions
l
l
l
Serial Number: 00105 5
Versio n:00.00 Edition:
HSU-24H03/Z
HSU-24C03/Z
2005-5-21
5

Content
1. Description of product model coding and series introduction
2. Specifications
3. Curves of performance
4. Description,net dimensions and functions of main components
and accessories
5. Knock-down drawings and part lists
6. Brief introduction to electrical control functions
7. Abnormity diagnose
8. Wiring diagram
9. Circuit diagram
10.Trouble shooting
11. Refrigerating cycle diagram
12. Noise level test chart and air velocity distribution
13. Installationmanual
Domestic Air Conditioner
Model:
HSU-24C03/Z
HSU-24H03/Z

DESCRIPTION OF
PRODUCT MODEL CODING
& SERIES INTRODUCTION
2
Domestic Air Conditioner
Model:
HSU-24C03/Z
HSU-24H03/Z

4
A. Description of coding rules of unit model
Coding rules and descriptions are as follows:
Applicable frequency:0(50HZ),1(60HZ)
Applicable voltage:3(220~230V),4(240V)
Refrigerant type:R1(R407C),R2(R410A)
Developing sequence :A,B,C,D...
Function code
R/H-heat pump
E-electric aided heating
Nominal cooling capacity (BTU/h)with the first two
numbers based on thousand unit
The structure code of indoor & outdoor unit: S(wall-mounted),W(window type),P (cabinet type)
H-Abbreviation of Haier
234567
189
L/C-cooling only
10 11
Examples:
HSU-24H03/Z,It represents wall-mounted split type heat pump air conditioner.The cooling
capacity is 24000BTU/h,and the power supply is 220-230V/50Hz,”Z” means the developing
sequence.
No.
1
2
3
Operating condition
Norminal cooling
Norminal heating
Norminal electrical
heating
indoor air status
DBOC WBOC
20OC15O
C
DBO C WBOC
7O C 6O C
outdoor air status
--- --- --- ---
B.Standard Situation/Conditions
27O C19OC 35O
C 24O C
Domestic Air Conditioner
Model:
HSU-24C03/Z
HSU-24H03/Z

C.Series brief introduction
2.Comfortable:wide-angle airflow
The vertical dual-flap and horizontal wide-angle louvers ensure the cool/warm air reaches every
corner of the room.
3.Health air purifying
An air purifying filter with deodorizing and disinfecting functions keeps the air clean and users
healthy.
4.Quiet operation
Fan with random-pitched blades.
Random-pitched blades help reduce operating noise while maintaining a high airflow rate.
1.High energy efficient
The design of inner-grooved copper tube greatly increases the refrigerant contact area and the
efficiency of cooling/heating functions.Using the R410A refrigerant and the refrigerating system
optimizing design make both the EER and COP reach the B class according to the european
energy efficient standard.
5.Convenience
Auto restart and washable panel:
The grille can be removed easily and washed when necessary.Any series have the function then
even if the power falls when the unit is operating unit will automatically return to the operating
settings in use before the power failure when power is restored.
6.Wide variety of functions
24-Hour Timer:
24-hour timer allows users to select the exact time they would like the air conditioner to turn on
and to turn off.Timers on previous models operation based on the number of hours of desired
operation.
7.Night-set models
When the air conditioner is operating on the timer-off circuit.The preset room temperature
gradually rises(going down in heating)before the unit stops as shown below.Users can sleep
comfortably without sudden change in temperature.
8.Program”dry”
This function automatically reduces the level of humidity while maintaining the preset indoor
temperature.
4
Domestic Air Conditioner
Model:
HSU-24C03/Z
HSU-24H03/Z

SPECIFICATIONS
5
Domestic Air Conditioner
Model:
HSU-24C03/Z
HSU-24H03/Z

Operating temp. range
Variation of temp. adjust
Climate type:
Indoor unit noise
(cooling)
(heating)
(indoor unit)
Frequency of filter cleaning
Compressor model
Compressor oil charge
Max . length of connecting
pipe
Tube type
Indoor unit noise
6800
2700
2.3X10-3
T1
Once/2 weeks
THU33
800
(cc)
15
(m)
TP2Y
2.52
-7-43
2.8
R22
Cross flow fan
Axial flow fan
I
58/52
internal
Internal treaded
plastic
50
60O
58/52
outdoor
Max. mounting height
difference(m)
Heating capacity(W)
Frequency range(Hz)
Refrigerant type
Air sendingangle
Fan type
Class ofelectric shock
Outdoor unit noise
Net dimensions
(outdoor unit)
Packaging dimensions
Piling layers
Current entering side
(indoor/outdoor)
Max. refrigerant charge
Compressormanufacturer
Compressor protector type
drain hose
Appearance features of indoor
(cooling)
Outdoor unit noise
(heating)
Type of tube of evaporator
and condenser
1050
5
O7&O9.52
7600
2.62
HSU-24H03/Z
1155x308x224
2900
SHANGHAIRILI
8
2400
1320/1260/1180
Model:
Cooling capacity(W)
Cooling coefficient(W/W)
Cooling power input(W)
Moiture removal(m /h)
3
220-230~
Operating voltage range V( )
OC
()
OC
()+1
47/45/43
)
dB(A)
(
)
dB(A)
(
Net/gross weight (kg)
(indoor unit)
Refrigerant charge(g)
(R22)
Fan speed(H/M/L)(r/min)
(indoor unit) cool
heat
Fan speed(r/min)
(outdoor unit)
2.8
warm side(Mpa)
Max. operating pressure at
cool side(Mpa)
Max. operating pressure at
Cut-off vavle(inch) 1/4
1/2
two-way
three-way
Heating coefficient(W/W)
Heating power input(W)
indoor unit
outdoor unit
)
dB(A)
(
)
dB(A)
(
mm
) (
mm
) (
indoor unit
outdoor unit
Net/gross weight (kg)
(outdoor unit)
(g)
length(mm)
diametre(mm) 2000
16
Size of tube of evaporator
and condenser(mm)
unit
Appearance features of outdoor
unit metal
(outdoor unit)(indoor unit)
Packaging dimensions mm
) (
Net dimensions mm
) (
4
2300
6
48/46/44
1231x372x300
860x308x730
995x420x815
17/20.5
1320/1260/1180
69/77
Domestic Air Conditioner
Model:
HSU-24C03/Z
HSU-24H03/Z

Operating temp. range
Variation of temp. adjust
Climate type:
Indoor unit noise
(cooling)
(heating)
(indoor unit)
Frequency of filter cleaning
Compressor model
Compressor oil charge
Max . length of connecting
pipe
Tube type
Indoor unit noise
6800
2700
2.3X10-3
T1
Once/2 weeks
THU33
800
(cc)
15
(m)
TP2Y
2.52
-7-43
0.65
R22
Cross flow fan
Axial flow fan
I
58/52
internal
Internal treaded
plastic
50
60O
outdoor
Max. mounting height
difference(m)
Heating capacity(W)
Frequency range(Hz)
Refrigerant type
Air sendingangle
Fan type
Class ofelectric shock
Outdoor unit noise
Net dimensions
(outdoor unit)
Packaging dimensions
Piling layers
Current entering side
(indoor/outdoor)
Max. refrigerant charge
Compressormanufacturer
Compressor protector type
drain hose
Appearance features of indoor
(cooling)
Outdoor unit noise
(heating)
Type of tube of evaporator
and condenser
1050
5
O7&O9.52
----
HSU-24C03/Z
1155x308x224
SHANGHAIRILI
8
2400
Model:
Cooling capacity(W)
Cooling coefficient(W/W)
Cooling power input(W)
Moiture removal(m /h)
3
220-230~
Operating voltage range V( )
OC
()
OC
()+1
48/44/38
)
dB(A)
(
)
dB(A)
(
Net/gross weight (kg)
(indoor unit)
Refrigerant charge(g)
(R22)
Fan speed(H/M/L)(r/min)
(indoor unit) cool
heat
Fan speed(r/min)
(outdoor unit)
2.8
warm side(Mpa)
Max. operating pressure at
cool side(Mpa)
Max. operating pressure at
Cut-off vavle(inch) 1/4
1/2
two-way
three-way
Heating coefficient(W/W)
Heating power input(W)
indoor unit
outdoor unit
)
dB(A)
(
)
dB(A)
(
mm
) (
mm
) (
indoor unit
outdoor unit
Net/gross weight (kg)
(outdoor unit)
(g)
length(mm)
diametre(mm) 2000
16
Size of tube of evaporator
and condenser(mm)
unit
Appearance features of outdoor
unit metal
(outdoor unit)(indoor unit)
Packaging dimensions mm
) (
Net dimensions mm
) (
4
2200
7
1231x372x300
860x308x730
995x420x815
17/20.5
1320/1260/1180
69/77
Domestic Air Conditioner
Model:
HSU-24C03/Z
HSU-24H03/Z
----
----
----

CURVES OF PERFORMANCE
OF COMPRESSOR
Domestic Air Conditioner
Model:
HSU-24C03/Z
HSU-24H03/Z

4550
5560
80
90
100
110
120
130
140
150
160
-5 0 5 10
FLOW RATE (kg/h)
45
50
55
60
1800
2000
2200
2400
2600
-5 0 5 10
INPUT （W）
45
50
55
60
8.0
9.0
10.0
11.0
12.0
13.0
-5 0 5 10
CURRENT （A）
45
50
55
60
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
-5 0 5 10
EVAPERATING TEMP. (℃)
CAPACITY （W）
CONDENSING TEMP. (℃)
PERFORMANCE CURVE 220V-50Hz-1 PHASE
SUCTION GAS TEMP.---35℃
UNDER COOL-----------8.3℃
AMBIENT TEMP.---------3
5
℃
RUNNING CAPACITOR--55μF
9
Domestic Air Conditioner Model: HSU-24H03/Z
Model: HSU-24C03/Z

DESCRIPTION,DIMENSION AND
AND ACCESSORIES
FUNCTION OF MAIN COMPONENTS
10
Domestic Air Conditioner
Model: HSU-24H03/Z
Model: HSU-24C03/Z
Model: HSU-24H03/Z
Model: HSU-24C03/Z

Inlet grill
Air filter
Vertical flap
Use remote controller to
adjust up and down air flow.
(Don't adjust it manually.)
Power indicator
Timer mode indicator Operation mode indicator
Lights up when unit starts.
Lights up when Timer operation
is selected.
Lights up during compressor
running .
Indoor Unit
11
Domestic Air Conditioner
Model: HSU-24H03/Z
Model: HSU-24C03/Z

12
KNOCK-DOWN DRAWINGS
Domestic Air Conditioner
Model: HSU-24H03/Z
Model: HSU-24C03/Z

Domestic Air Conditioner
Model:
HSU-24C03/Z
HSU-24H03/Z

Model:
Edition:2005/05/21
No. in
exploded
view
Spare parts number Spare parts description in
english Model Qty Price list Failure
rate(%)
The proportion of
the spare part
stock
Remark
1 001A1231360 Front grillle HSU-24H03/Z HSU-24C03/Z 1*
2 0010800070 Front panel assy. HSU-24H03/Z HSU-24C03/Z 1
3 001A2400136 Air filter HSU-24H03/Z HSU-24C03/Z 3*
4 0010802048 Seperating plate(L) HSU-24H03/Z HSU-24C03/Z 1
50010704157 Heat exchanger assy.
HSU-24H03/Z HSU-24C03/Z 1
6 001A0300060 Bearing HSU-24H03/Z HSU-24C03/Z 1
7 001A2300098 Fan HSU-24H03/Z HSU-24C03/Z 1*
8 001A1301857 Left support HSU-24H03/Z HSU-24C03/Z 1
9 0010200074 Cushion HSU-24H03/Z HSU-24C03/Z 1
10 0010200075 Cushion HSU-24H03/Z HSU-24C03/Z 1
11 001A1301856 Mounting plate HSU-24H03/Z HSU-24C03/Z 1
12 001A14311029 Fix plate HSU-24H03/Z HSU-24C03/Z 1
13 001A1231361 Bottom plate
HSU-24H03/Z HSU-24C03/Z 1
14 001A14311047 Control box HSU-24H03/Z HSU-24C03/Z 1
15 001A3900059 Temperature sensor HSU-24H03/Z HSU-24C03/Z 1*
16 0010401745 Displaying panel HSU-24H03/Z HSU-24C03/Z 1
17 001A3000273 Swing motor HSU-24H03/Z HSU-24C03/Z 1*
18 001A14361036 Support plate HSU-24H03/Z HSU-24C03/Z 1
19 001A0900011 Drain hose HSU-24H03/Z HSU-24C03/Z 1
20 0010800156 Drain pan assy. HSU-24H03/Z HSU-24C03/Z 1
21 001A14361035 Link HSU-24H03/Z HSU-24C03/Z 1
22 001A14431044 Bearing support HSU-24H03/Z HSU-24C03/Z 10
23 001A14361031 Vane HSU-24H03/Z HSU-24C03/Z 15
24 001A1231357 Flap HSU-24H03/Z HSU-24C03/Z 1
25 001A1231358 Flap HSU-24H03/Z HSU-24C03/Z 1
26 0010200036 Wnd shield HSU-24H03/Z HSU-24C03/Z 1
27 001A14361030 Dew-prevent HSU-24H03/Z HSU-24C03/Z 1
28 001A1741744 Heat-insulation tube HSU-24H03/Z HSU-24C03/Z 1
29 001A14311041 Seperating plate(R ) HSU-24H03/Z HSU-24C03/Z 1
30 0010401531 PC board
HSU-24H03/Z 1*
30 0010401590 PC board
HSU-24C03/Z 1*
31 —————— Power switch HSU-24H03/Z HSU-24C03/Z ——
32 0010401536 Terminal block HSU-24H03/Z HSU-24C04/Z 1
33 —————— Switch HSU-24H03/Z HSU-24C05/Z ——
34 001A14311043 Motor cover HSU-24H03/Z HSU-24C06/Z 1
35 0010400576 Motor HSU-24H03/Z HSU-24C07/Z 1*
36 001A1301858 Right support HSU-24H03/Z HSU-24C08/Z 1
37 0010401599 Remote controller HSU-24H03/Z HSU-24C09/Z 1*
37 0010401603 Remote controller HSU-24H03/Z HSU-24C10/Z 1*
38 —————— Drain hose HSU-24H03/Z HSU-24C11/Z ——
HSU-24H03/Z
HSU-24C03/ZDomestic Air Conditioner

Domestic Air Conditioner
Model: HSU-24H03/Z
Model: HSU-24C03/Z

Edition:2005/03/31
No. in
exploded
view
Spare parts
number
Spare parts description
in english Model Qty Price list
Failure
rate(%)
The
proport
ion of
the
Rem
ark
1 001A1236199 Front grille HSU-24H03/Z HSU-24C03/Z 1
2001A1101106 Front panel HSU-24H03/Z HSU-24C03/Z 1
3 0010202161 Fan HSU-24H03/Z HSU-24C03/Z 1
40010402046 Motor HSU-24H03/Z 1
4 0010402157 Motor HSU-24C03/Z 1
5001A1301427 Motor support assy. HSU-24H03/Z 1
5 0010801921 Motor support assy. HSU-24C03/Z 1
6 001A5701063 Heat exchanger fixing HSU-24H03/Z HSU-24C03/Z 1
7 0010704366 Heat exchanger assy. HSU-24H03/Z HSU-24C03/Z 1
8 —— Temperature sensor sup
p
HSU-24H03/Z HSU-24C03/Z ——
9 001A1231361 Back grille HSU-24H03/Z HSU-24C03/Z 1
10 001A0100656 Side panel (L) assy. HSU-24H03/Z HSU-24C03/Z 1
11 001A1436182 Handle HSU-24H03/Z HSU-24C03/Z 1
12 001A0100651 Top panel assy. HSU-24H03/Z HSU-24C03/Z 1
13 001A0100652 Side panel (R) assy. HSU-24H03/Z HSU-24C03/Z 1
14 001A0100125 Wiring cover assy. HSU-24H03/Z HSU-24C03/Z 1
15 001A2500015 Four-way valve HSU-24H03/Z 1
16 0010703916 Capillary tube assy. HSU-24H03/Z 1
16 0010704436 Capillary tube assy. HSU-24C03/Z 1
17 0010702454 Two-way stop valve HSU-24H03/Z HSU-24C03/Z 1
18 0010702420 Three-way stop valve HSU-24H03/Z HSU-24C03/Z 1
19 0010402047 Wires HSU-24H03/Z HSU-24C03/Z 1
20 0010702609 Compressor HSU-24H03/Z HSU-24C03/Z 1
21 —— Compressor heating-set HSU-24H03/Z HSU-24C03/Z ——
22 001A1762341 Cushion HSU-24H03/Z HSU-24C03/Z 1
23 —— Wires HSU-24H03/Z HSU-24C03/Z ——
24 0010250255 Cushin HSU-24H03/Z HSU-24C03/Z 1
25 ---- PC board HSU-24H03/Z HSU-24C03/Z 1
26 0010806226 Controller box HSU-24H03/Z HSU-24C03/Z 1
27 001A4000107 Terminal block HSU-24H03/Z HSU-24C03/Z 1
28 001A2500004 4-way valve coil HSU-24H03/Z HSU-24C03/Z 1
29 —— Transformer HSU-24H03/Z HSU-24C03/Z ——
30 —— Sensor HSU-24H03/Z HSU-24C03/Z ——
31 001A4000011 Terminal block HSU-24H03/Z HSU-24C03/Z 1
32 001A1301418 Tube plate(R ) HSU-24H03/Z HSU-24C03/Z 1
33 0010400334 AC contactor HSU-24H03/Z HSU-24C03/Z 1
34 0010100001 Capacitor clip HSU-24H03/Z HSU-24C03/Z 1
35 0010401954 Capacitor for compresso
r
HSU-24H03/Z HSU-24C03/Z 1
36 001A3600218 Capacitor for motor HSU-24H03/Z HSU-24C03/Z 1
37 001A0100753 Seperating plate assy. HSU-24H03/Z HSU-24C03/Z 1
38 001A1101110 Bottom plate assy. HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z
HSU-24C03/ZModel:Domestic Air Conditioner

REMOTE CONTROLLER
FUNCTIONS CONVERTION
30
Domestic Air Conditioner
Model: HSU-24H03/Z
Model: HSU-24C03/Z

41
BRIEF INTRODUCTION TO
ELECTRICAL CONTROL FUNCTIONS
Domestic Air Conditioner
Model: HSU-24H03/Z
Model: HSU-24C03/Z
Brief introduction to electrical control functions

1. Introduction of electric control function
1.1 Brief introduction of electric control function
(1) Auto running (available for cooling and heating type)
When Auto running starts for the first time, selection of running mode follows the
conditions below:
Tr > 23℃Select cooling mode Set temperature: 26℃
Tr≤23℃ Select heating mode (with temperature compensation) Set temperature: 23℃
In auto mode, running mode shifts between cooling and heating with the variation of
room ambient temperature.
(2) Room temperature control
Compressor ON Compressor OFF
Heating
Set temperature
Compressor OFF Compressor ON
Cooling
Set temperature
(3) Dry running
Compressor, outdoor fan and indoor fan run as follows (Tr, room temperature, Ts, set
temperature). When dry mode starts for the first time, compressor, outdoor fan and indoor
fan will run following the rules below:
① Tr>Ts+2℃， compressor, outdoor fan run successively, indoor fan run at set speed,
this working area is defined as area A.
② Ts≤Ｔｒ≤Ｔｓ＋2℃， compressor, outdoor fan will run for 10 minutes and stop for 6
minutes, indoor fan will run at low speed, this working area is defined as area B.
③ Tr<Ts, compressor, outdoor fan will stop running, indoor fan will run at low
speed, this area is defined as area C.
In dry mode, system will shift between area A, B and C variation with room ambient
temperature. When Tr<Ts+1, system will shift from area A to B; when Tr>Ts, system
will shift from area C to B; when Tr>Ts+3, system will shift from B to A; when
Tr<Ts-1, system will shift from area A to C.
(4) Cool-air proof in heating
In heating, every time starts compressor, indoor fan will stop running if room coil
temperature is less than 28℃; indoor fan will run at low speed if room coil temperature is
equal to or more than 28℃ and less than 38℃; indoor fan will run at set fan speed if
room coil temperature is more than 38℃ or compressor has run more than 4 minutes.
(5) Residual heat air discharging in heating
In heating, compressor stops, indoor fan stops after a 30-second low running.
(6) Defrosting control
Domestic Air Conditioner
Model: HSU-24H03/Z
Model: HSU-24C03/Z