Haier HSU 24H03Z, HSU 24C03Z Schematic

Domestic Air Conditioner

SERVICE MANUAL

Models :

HSU-24H03/Z
HSU-24C03/Z

l Features

l

Comfortable:wide-angle airflow

l

Health air purifying
Quiet operation

l
l

Wide variety of functions

Serial Number: 00105 5

Versio n:00.00 Edition:

5

2005-5-21

1

Domestic Air Conditioner

Model:

HSU-24H03/Z
HSU-24C03/Z

Content

1. Description of product model coding and series introduction

2. Specifications

3. Curves of performance

4. Description,net dimensions and functions of main component s
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

Trouble shooting

10.

11. Refrigerating cycle diagram

12. Noise level test chart and air veloc ity distribution

13. Installation manual

Domestic Air Conditioner

Model:

HSU-24H03/Z
HSU-24C03/Z

DESCRIPTION OF

PRODUCT MODEL CODING

& SERIES INTRODUCTION

2

3

A. Description of coding rules of unit model

Domestic Air Conditioner

Coding rules and descriptions are as follows:

1

2

3

4

5

6

7

8

Applicable frequency:0(50HZ),1(60HZ)

Developing sequence :A,B,C,D...

Function code

Nominal cooling capacity (BTU/h)with the first two
numbers based on thousand unit

Model:

9

10 11

HSU-24H03/Z
HSU-24C03/Z

Refrigerant type:R1(R407C),R2(R410A)

Applicable voltage:3(220~230V),4(240V)

L/C-cooling only
R/H-heat pump
E-electric aided heating

The structure code of indoor & outdoor unit:

S(wall-mounted),W(window type),P (cabinet type)

H-Abbreviation of Haier

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.

B.Standard Situation/Conditions

No.

1

2

3

Operating condition

Norminal cooling

Norminal heating

Norminal electrical
heating

indoor air status

DBOC WBOC

27OC

20OC

---

19OC 35OC 24OC

15OC

--- ---

outdoor air status

DBOC WBOC

7OC 6OC

---

4

C.Series brief introduction

1.High energy efficient

Domestic Air Conditioner

Model:

HSU-24H03/Z
HSU-24C03/Z

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.

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.

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-24H03/Z
HSU-24C03/Z

SPECIFICATIONS

5

Model:

HSU-24H03/Z

Cooling capacity(W)
Cooling coefficient(W/W)

Cooling power input(W)

Moiture removal(m /h)

3

Operating voltage range

O

C

Operating temp. range

(
Variation of temp. adjust

Climate type:

)

Indoor unit noise

(

)

(A

B

d

(cooling)
Indoor unit noise

)

)

(A

(

B

d

(heating)

)

(

Net dimensions

Packaging dimensions

mm

(

mm

(indoor unit)

Net/gross weight (kg)

(indoor unit)

Max. mounting height

difference(m)

Refrigerant charge(g)

(R22)

Frequency of filter cleaning
Compressor model

Compressor oil charge

(cc)

Max . length of connecting

(m)

pipe

Tube type

Fan speed(H/M/L)(r/min)

(indoor unit)

Fan speed(r/min)

cool

heat

(outdoor unit)

Cut-off vavle(inch)

two-way

three-way

Max. operating pressure at

warm side(Mpa)

Domestic Air Conditioner

Model:

HSU-24H03/Z
HSU-24C03/Z

6800

2.52

2700

3

-7-43
+

1

-

2.3X10

V( )

220-230~

)

O

C

(

)

T1

47/45/43

48/46/44

1155x308x224

)

1231x372x300

17/20.5

5

2300

Once/2 weeks

THU33

800

15

TP2Y

1320/1260/1180
1320/1260/1180

1050

1/4

1/2

2.8

Heating capacity(W)

Heating coefficient(W/W)

Heating power input(W)

Frequency range(Hz)
Refrigerant type

Air sending angle
Fan type

indoor unit

outdoor unit

Class of electric shock

)

)

A

(

Outdoor unit noise
(cooling)

Outdoor unit noise

(

B

d

)

)

A

(

(

B

d

(heating)
Net dimensions

(

mm

)

(outdoor unit)(indoor unit)

Packaging dimensions

(

mm

)

(outdoor unit)

Net/gross weight (kg)

(outdoor unit)

Piling layers

indoor unit

outdoor unit

Current entering side
(indoor/outdoor)

Max. refrigerant charge

(g)

Compressor manufacturer
Compressor protector type

drain hose

length(mm)

diametre(mm)

Type of tube of evaporator

and condenser

Size of tube of evaporator

and condenser(mm)

Appearance features of indoor

unit

Appearance features of outdoor

unit

Max. operating pressure at

cool side(Mpa)

7600

2.62
2900

50

R22

O

60

Cross flow fan

Axial flow fan

I

58/52

58/52

860x308x730

995x420x815

69/77

8

4

outdoor

2400

SHANGHAIRILI

internal

2000

16

Internal treaded

O7&O9.52

plastic

metal

2.8

6

Model:

HSU-24C03/Z

Cooling capacity(W)
Cooling coefficient(W/W)

Cooling power input(W)

Moiture removal(m /h)

3

Operating voltage range

O

C

Operating temp. range

(
Variation of temp. adjust

Climate type:

)

Indoor unit noise

(

)

(A

B

d

(cooling)
Indoor unit noise

)

)

(A

(

B

d

(heating)

)

(

Net dimensions

Packaging dimensions

mm

(

mm

(indoor unit)

Net/gross weight (kg)

(indoor unit)

Max. mounting height

difference(m)

Refrigerant charge(g)

(R22)

Frequency of filter cleaning
Compressor model

Compressor oil charge

(cc)

Max . length of connecting

(m)

pipe

Tube type

Fan speed(H/M/L)(r/min)

(indoor unit)

Fan speed(r/min)

cool

heat

(outdoor unit)

Cut-off vavle(inch)

two-way

three-way

Max. operating pressure at
warm side(Mpa)

Domestic Air Conditioner

Model:

HSU-24H03/Z
HSU-24C03/Z

6800

2.52

2700

3

-7-43
+

1

-

2.3X10

V( )

220-230~

)

O

C

(

)

T1

48/44/38

----

1155x308x224

)

1231x372x300

17/20.5

5

2200

Once/2 weeks

THU33

800

15

TP2Y

1320/1260/1180

1050

1/4

1/2

0.65

Heating capacity(W)

Heating coefficient(W/W)

Heating power input(W)

Frequency range(Hz)
Refrigerant type

Air sending angle
Fan type

indoor unit

outdoor unit

Class of electric shock

)

)

A

(

Outdoor unit noise
(cooling)

Outdoor unit noise

(

B

d

)

)

A

(

(

B

d

(heating)
Net dimensions

(

mm

)

(outdoor unit)(indoor unit)

Packaging dimensions

(

mm

)

(outdoor unit)

Net/gross weight (kg)

(outdoor unit)

Piling layers

indoor unit

outdoor unit

Current entering side
(indoor/outdoor)

Max. refrigerant charge

(g)

Compressor manufacturer
Compressor protector type

drain hose

length(mm)

diametre(mm)

Type of tube of evaporator

and condenser

Size of tube of evaporator

and condenser(mm)

Appearance features of indoor

unit

Appearance features of outdoor

unit

Max. operating pressure at

cool side(Mpa)

----

----

50

R22

O

60

Cross flow fan

Axial flow fan

I

58/52

----

860x308x730

995x420x815

69/77

8

4

outdoor

2400

SHANGHAIRILI

internal

2000

16

Internal treaded

O7&O9.52

plastic

metal

2.8

7

8

Domestic Air Conditioner

Model:

HSU-24H03/Z
HSU-24C03/Z

CURVES OF PERFORMANCE

OF COMPRESSOR

5

PERFORMANCE CURVE

160
150
140
130
120
110
100

90

FLOW RATE (kg/h)

80

-5 0 5 10

2600

Domestic Air Conditioner

Model: HSU-24C03/Z

Model: HSU-24H03/Z

220V-50Hz-1 PHASE
SUCTION GAS TEMP.---35℃
UNDER COOL-----------8.3℃
AMBIENT TEMP.---------3
RUNNING CAPACITOR--55μF

℃

45

55

50

60

60

）

W

（

INPUT

）

W

（

CAPACITY

2400

2200

2000

1800

）

A

（

CURRENT

8500
8000
7500
7000
6500
6000
5500
5000
4500
4000

-5 0 5 10

13.0

12.0

11.0

10.0

9.0

8.0

-5 0 5 10

-5 0 5 10

55

50

45

60

55

50

45

45

50

55
60

)

℃

CONDENSING TEMP. (

EVAPERATING TEMP. (℃)

9

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

DESCRIPTION,DIMENSION AND

FUNCTION OF MAIN COMPONENTS
AND ACCESSORIES

10

Indoor Unit

Inlet grill

Air filter

Vertical flap

Use remote controller to
adjust up and down air flow.
(Don't adjust it manually.)

Domestic Air Conditioner

Power indicator

Lights up when unit starts.

Model: HSU-24C03/Z
Model: HSU-24H03/Z

Timer mode indicator

Lights up when Timer operation
is selected.

Operation mode indicator

Lights up during compressor
running .

11

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

KNOCK-DOWN DRAWINGS

12

13

Domestic Air Conditioner

Model:

HSU-24H03/Z
HSU-24C03/Z

14

No. in

exploded

view

Spare parts number

Spare parts description in

english

Model Qty Price list

Model:

Failure

rate(%)

HSU-24H03/Z
HSU-24C03/ZDomestic Air Conditioner

Edition:2005/05/21
The proportion of

the spare part

stock

Remark

1 001A1231360 Front grillle HSU-24H03/Z HSU-24C03/Z 1*
2 0010800070 Front panel assy.
3 001A2400136 Air filter
4 0010802048 Seperating plate(L)
5 0010704157 Heat exchanger assy.
6 001A0300060 Bearing
7 001A2300098 Fan
8 001A1301857 Left support

9 0010200074 Cushion
10 0010200075 Cushion
11 001A1301856 Mounting plate
12 001A14311029 Fix plate
13 001A1231361 Bottom plate
14 001A14311047 Control box
15 001A3900059 Temperature sensor
16 0010401745 Displaying panel
17 001A3000273 Swing motor
18 001A14361036 Support plate
19 001A0900011 Drain hose

HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 3*
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1*
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1*
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1*
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1

20 0010800156 Drain pan assy.
21 001A14361035 Link
22 001A14431044 Bearing support
23 001A14361031 Vane
24 001A1231357 Flap
25 001A1231358 Flap
26 0010200036 Wnd shield
27 001A14361030 Dew-prevent
28 001A1741744 Heat-insulation tube
29 001A14311041 Seperating plate(R )
30 0010401531 PC board
30 0010401590 PC board
31 —————— Power switch
32 0010401536 Terminal block
33 —————— Switch
34 001A14311043 Motor cover
35 0010400576 Motor
36 001A1301858 Right support

HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 10
HSU-24H03/Z HSU-24C03/Z 15
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1
HSU-24H03/Z HSU-24C03/Z 1

HSU-24H03/Z 1*
HSU-24C03/Z 1*

HSU-24H03/Z HSU-24C03/Z ——
HSU-24H03/Z HSU-24C04/Z 1
HSU-24H03/Z HSU-24C05/Z ——
HSU-24H03/Z HSU-24C06/Z 1
HSU-24H03/Z HSU-24C07/Z 1*
HSU-24H03/Z HSU-24C08/Z 1

37 0010401599 Remote controller
37 0010401603 Remote controller
38 —————— Drain hose

HSU-24H03/Z HSU-24C09/Z 1*
HSU-24H03/Z HSU-24C10/Z 1*
HSU-24H03/Z HSU-24C11/Z ——

15

Domestic Air Conditioner

Model: HSU-24C03/Z

Model: HSU-24H03/Z

The

p

r

16

c Air Conditioner

No. in

exploded

view

1 001A1236199 Front grille HSU-24H03/Z HSU-24C03/Z 1
2 001A1101106 Front panel HSU-24H03/Z HSU-24C03/Z 1
3 0010202161 Fan HSU-24H03/Z HSU-24C03/Z 1
4 0010402046 Motor HSU-24H03/Z 1
4 0010402157 Motor HSU-24C03/Z 1
5 001A1301427 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

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
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

Spare parts

number

Spare parts description

in english

Model

HSU-24H03/Z HSU-24C03/Z ——

HSU-24H03/Z HSU-24C03/Z 1

Qty

Price

list

HSU-24H03/Z

HSU-24C03/ZModel:Domesti

Edition:2005/03/31

Failure
rate(%)

proport

ion of

Rem

ark

17

REMOT

Domestic Air Conditioner

E CONTROLLER

Model: HSU-24C03/Z
Model: HSU-24H03/Z

FUNCTIONS CONVERTION

30

18

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

Brief introduction to electrical control functions

BRIEF INTRODUCTION TO

ELECTRICAL CONTROL FUNCTIONS

41

room ambient temperature.

compressor

four-way valve

outdoor fan

163838

38

19

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

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

(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

Indoor fan

Run on cool air

-

proof

4-way

0

20

(1)

Domestic Air Conditioner

a. After the state of Tp-Tr<18℃ is continued for 5 minutes, the accumulated

running time of the compressor exceeds 45 minutes, the continuous running
time of the compressor exceeds 20 minutes;

b. The accumulated running time of the compressor exceeds 3 hours, the

continuous running time of the compressor exceeds 20 minutes, indoor unit’s Tp
<42℃;

c. The continuous running time of the compressor exceeds 20 minutes, the

temperature of indoor coil pipe decreases 1℃ every 6 minutes, which lasts for
more than 3 times, indoor unit’s Tp <42 ℃;

d. When the indoor unit is in the state of overload protection and the outdoor unit

ceases, when the rerunning time of outdoor unit exceeds10 minutes, the
accumulated running time of the compressor exceeds 45 minutes, the
continuous running time of the compressor is over 20 minutes, and Tp <42℃.

Defrosting will begin if one of the above conditions is met.

(2) Defrosting finishing condition:

If the defrosting time exceeds 9 minutes, the original heating state will be

resumed;

Defrosting process is as follows:

Ｃｏｍｐｒｅｓｓｏｒ　

Outdoor fan

55s

9min

1min

Model: HSU-24C03/Z
Model: HSU-24H03/Z

55s

1min

21

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

(7) Temperature compensation.
Auto temperature compensation condition: when reach temperature condition, cut-off
time of compressor is less than 5 minutes. Temperature compensation rules are as
follows:
When Ts+4-Tr≥2℃，　ΔＴ＝２℃；　when Ts+4-Tr=1℃，　ΔＴ＝１℃；

When Ts+4-Tr≤0℃，　ΔＴ＝０℃．　
When heating mode starts for the first time,　ΔＴ＝０℃．
With temperature compensation function, if push temperature increasing and decreasing
button on remote controller, ΔＴ＝０; if push temperature increasing button on remote
controller, ΔＴ will maintain previous value.
(8) Overcool protection in cooling.

In cooling, 9 minutes after the start of compressor, check room coil temperature. when
indoor coil temperature is less than 0℃，compressor and outdoor fan will stop running.

When the two following conditions are meet, compressor and outdoor fan will restart:

①　Cut-off time is more than 3 minutes;
②　Indoor coil temperature is more than 7℃．

(9) 3-minutes delay
When compressor stop running arose from transmitter OFF, ON-OFF or breakdown,
compressor will stop for 3-minutes.
(10) Overcharging protection in heating
Overcharging protection: in HEAT mode, if room coil temperature>56℃, outdoor fan will

stop running and resume when inner coil temperature ≤ 53 ℃ ；if room coil
temperature>68℃ and last 10 seconds, compressor and outdoor fan will strop running;
compressor and outdoor fan will resume normal operation when room coil
temperature<46℃．

Over-current protection: in HEAT mode, outdoor fan will stop running if working current
measured with current transformer is continuously more than 14A in 2 seconds; if current
is less than 13A, outdoor fan will resume operation; if working current is more than 26A
after a 5-minutes running and last 10 seconds, compressor will stop and resume normal
operation 3 minutes after; indoor fan will run on cool-air proof condition. If over-current
protection occurs twice in 30 minutes, compressor won’t restart any more. System will
turn into over-current fault alarm.
(11) Power failure compensation function.
Power failure compensation function will be set by remote controller. To cancel power
failure function, push SLEEP button 10 times in 5 seconds, buzzer will sound twice
"BEEP"; To set power failure function, push SLEEP button 10 times in 5 seconds, buzzer
will sound four times "BEEP".
When main panel has power failure compensation function, it will memorize running
parameter in the case of sudden power failure (not cut by remote controller), if unit didn’t
receive remote signal 3 minutes after power resume, it will call automatically memory
information and continue to run in previous state. Memory includes operation mode, fan
speed, set temperature, air door state, health; timing and sleep mode not included.
(12) Emergency switch and forced cooling.
Push down emergency ON/OFF button, buzzer will sound once "beep", release it 5
seconds after, unit will perform starting function; if ON/OFF button is pressed
continuously for more than 5 seconds, buzzer will sound twice "beep", and unit will
perform forced cooling function. Here operational mode is set as cooling, fan speed is set
as high; forced cooling will finish 30 minutes after. After having pushed down mode
button, fan speed button, temperature increasing and decreasing button, sleep button,

22

Domestic Air Conditioner

Model: HSU-22HC03/R2

WIRING DIAGRAM

47

23

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

ＷＩＲＩＮＧ　ＤＩＡＧＲＡＭ　ＯＦ　ＩＮＤＯＯＲ　ＵＮＩＴ

ＣＮ４

ＣＮ７

Ｍ

ＳＷ１

ＣＮ９ＣＮ８

ＩＯＮ　ＧＥＮＥＲＡＴＯＲ

ＣＯＭＰ

Ｎ

Ｌ

ＦＡＮ　ＭＯＴＯＲ

Ｍ

ＣＮ１

ＣＮ２

CN3

ＲＥＶ

ＰＣＢ

ＣＮ１０

ＣＮ１２

ＮＯＴＩＮＧ：

１

ＯＮＬＹ　ＣＯＯＬＩＮＧ　ＴＹＰＥ　ＤＯＥＳＮ＇Ｔ　ＨＡＶＥ　ＴＨＥ　
ＤＯＴＴＥＤ　ＬＩＮＥ．
ＴＨＥ　ＤＡＳＨＥＤ　ＵＮＩＴ　ＩＳ　ＯＰＴＩＯＮＡＬ　ＵＮＩＴ．

２

１

２ ３ ４ ５

ＴＯ　ＯＵＴＤＯＯＲ　 ＵＮＩＴ

THE WIRING DIAGRAM FOR OUTDOOR UNIT IS ONLY FOR HSU-24H03/Z

ＷＩＲＩＮＧ　ＤＩＡＧＲＡＭ　ＯＦ　ＯＵＴＤＯＯＲ　ＵＮＩＴ

Ｒ：ＲＥＤ
Ｗ：ＷＨＩＴＥ
Ｂ：ＢＬＡＣＫ

THE WIRING DIAGRAM FOR OUTDOOR UNIT IS ONLY FOR HSU-24C03/Z

24

CIRC

Domestic Air Conditioner

UIT DIAGRAM

Model: HSU-24C03/Z
Model: HSU-24H03/Z

47

27

25

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

+12

远程通讯输入

CN3

+5

C11

104

ＣＮ４

加热带
外风机
四通阀

+12V

ＬＥＤ面板

ＲＥＶ

N

Ｌ

T3.15A 250VAC

R27
10K

DQ6
9014

R101

R45

5.1K

DQ3
9014

EZ1

C7

104

R11
10K

DL1

103N

L101

L102

L103

R102

IC4

T600D

C1

0.1UF/275V

IC7
LM358

DQ7

9014

C101

+5

３
１

２

LX1

LX102

C35
104

DQ2
9014

R47

5.1K

ＣＮ１０１

R28
10K

+12

C21
104

0.1UF/275VF1

１０

C2

R52
10K

R26
10K

ＣＮ９

+5

NTC
5D-15

+12

R13
10K

DQ4
9014

+5R4610K
R405.1K

R105.1K

DQ8

R48
R5.1K

9014

R25
R24
R23

R22220

D7

1N4148

C24

4.7UF/50V

R34

5.1K

R33
1K

７

１１

DQ9

R49

5.1K

9014

220
220
220

+5

R12
10K

R541K

R29
1K

B1

KBJ406

C3

100UF/400V

１２

C29
103

+5

１３
１４
１５
１６

M1

IC2
93C46

5
6
7
8

C22
104

C23
103

１８

TOP226Y

D

C

S

DO4GND

DI

RS

SK

NC

CS

VCC

６

C34
103

R3010M

OSC

8MHZ

８

C19

103

３１

C13

471/2KV

R1
10

C5

47UF/25V

3
2
1

风机

+5

R53
2K

+5 IC8

LM358

R57

100K/2W

C30

222/2KV

R31

+5

10K

C12

100UF/16V

1

P77

2

P76

3

P75

4

P74

5

P73

6

P72

7

P71

8

P70

9

P07

10

P06

11

P05

12

P04

13

P03

14

P02

15

P01

16

P00

17

TEST

18

RESET

19

XIN

20

XOUT
VSS21VAREF

CN2

100UF/16V

D2

P6KE200

PC3
TLP521-1

１
２

R38

D6

1M

1N4148

３６

IC1

TMP87PH46N

VCC

P22
P21
P20
P17
P16
P15
P14
P13
P12
P11
P10
P67
P66
P65
P64
P63
P62
P61
P60

C17

470UF/100V

470UF/100V

R3 10K

R551K

C14

R2 5.1K

D4
UF4005

４
３

+5

R32
51K

+5

42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22

+5

C25
104

C18

+5

DQ1
9012

D8
1N4148

C4

0.1UF/50V

CN5

R15
51K

R39

5.1K

３５

C33
104

+5

R44
10K

C15
104

VDD

R50
10K

BK-JN02

+5

ＬＣＤ面板

CN6

C37

104

100UF/16V
C36

J24

J

1
2
3
4
5
6
7

R59
1K

SW2

JSS 1271

+12

JK1

JQ1aP-12V

R563.3K

T1

３９

IC3
ULN2003A

A1

Q1

A2

Q2

A3

Q3

A4

Q4

A5

Q5

A6

Q6

A7

Q7

GND8VCC

+5

R5810K

Ａ

Ａ－Ｂ码转换

Ｂ

CA1

IC5

TL431

104
R9

62K

D1
UF106

VDD

D5
BYW29-200F

+5

16
15
14
13
12
11
10

9

R36
51K

JTP 1236A

R14

SW1

10K

+5

R41
10K

J

４１４０

３８
３７

+12

C26
104

R8
510C16

应急按键

J19

R171K

R19
10K

R21
10K

R37
20K

C10

330UF/50V

+5

1

R51

5.1K

10K

R35

C6
104

+12

DQ5
2N5551

IC6

3

7805

1

C9
104

ＤＣ１２Ｖ负离子发生器

XT

2P

R5 100

+5

R42
10K

LM2575-12

5

Vin

Vout

GND

2

D9
IN4007

+12V

ＣＮ１

PS144DP02B-T

+12

R4
1K

R43
10K

L2 331

R20
20K

L3331

R18
20K

4

2

+12

BUZ

L4

331

3

Z1
1N6189

+5

C8
220UF/16V

JK3
JQ1aP-12V

+12

+12

L1
101

C27

4.7UF/50V

C28

4.7UF/50V

+12

C20
104

ＣＮ１

Ｎ

Ｌ

JK2
G4A-1A-E

压机

步进电机

CN7

+5

室内环境温度

室内盘管温度

CN8

C31

1000UF/25V

AC220V负离子发生器

26

Domestic Air Conditioner

Model: HSU-22HC03/R2

ABNORMALITY DIAGNOSING

47

27

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

For the abnormal phenomenon occurred, please conduct trouble analysis and troubleshooting
according to the following table:

No Reason of trouble Phenomena Remarks

1 The sensor of indoor ambient

temperatureis in short circuit or
broken circuit

2 The temperature sensor of

indoor coil pipe is in short
circuit or broken circuit

The compressor indictor
and

timing
extinguish,
running indicator flickers

The compressor indictor
and timing indicator are
on, and the running
indicator flickers

indicator

and the

3 The indoormotoris damaged,or the

computer board is damaged

The power indicator and
running indicator of indoor
unit flicker twice, thepower
indicator, running indicator
and timing indicator flicker
togetherfor 1 second,then
repeating the cycle.

The motorhasno signal
feedback of Hall unit

48

28

Domestic Air Conditioner

Model: HSU-24H03/Z

HSU-24C03/Z

49

29

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

REFRIGERATING CYCLE DIAGRAM

50

30

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

31

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

INSTALLATION MANUAL

52

32

26

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

26

53

33

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

54

553456

35

36

37

58

1.Cut pipe

3.Insert the flare nut

4.Flare pipe

2.Remove burs

Flare tool for R410A

Clutch-type

clutch-type(Rigid-type)

Conventional flare tool

Wing-nut type (Imperial-type)

0~0.5mm 1.0~1.5mm 1.5~2.0mm

38

Domestic Air Conditioner

Model: HSU-24C03/Z
Model: HSU-24H03/Z

39

Sincere Forever

Haier Group

Haier Industrial Park, No.1, Haier Road

266101, Qingdao, China

http://www.haier.com