Hisense AMS-09UR4SNZA3, AMD-18UX4SJC, AMD-09UX4SJC, AMD-12UX4SJC, AMW2-16U4SGC Service Manual

MULTI-SPLIT TYPE AIR CONDITONER

SERVICE MANUAL

V: 3.0

●

INDOOR UNIT:

AMS-07UR4SNZA3
AMS-09UR4SNZA3
AMS-12UR4SNZA3
AMS-18UR4SPZA3
AMD-09UX4SJC
AMD-12UX4SJC
AMD-18UX4SJC

●OUTDOOR UNIT:

AMW2-16U4SGC
AMW2-20U4SNC
AMW3-24U4SKC
AMW4-28U4SKC

Hisense Corporation

Table of contents

Page
1．OPERATING RANGE 1

2．SPECIFICATION 2
2-1 Unit specifications 2
2-2 Major component specifications 5
2-3 Other component specifications 6
3．OUTLINES AND DIMENSIONS 8
3-1 INDOOR 8
3-2 OUTDOOR 12
4．REFRIGERANT FLOW DIAGRAM 14
4-1 Refrigerant flow diagram 14
4-2 Evacuation procedures 16
4-3 Evacuation direction 17
5．ELECTRICAL DATA 18
5-1 Electric wiring diagrams 18
5-2 Electric control 19
5-3 Sensor parameter 30
6．CONTROL MODE 31
6-1 Indoor control mode 31
6-2 Outdoor control mode 34
7．TROUBLESHOOTING 38
7-1 Error codes 39
8．CHECKING COMPONENTS 40
8-1 Check refrigerant system 40
8-2 Check parts unit 42
9．PARTS LIST 46
9-1 Indoor 46
9-2 Outdoor 51

11.. OOPPEERRAATTIINNGG RRAANNGGE

E

1

T emperature Indoor Air Intake Temp. Outdoor Air Intake Temp

Maximum

32℃ D.B./23℃ W.B. 43 ℃ D.B./26℃ W.B.

COOLING

Minimum

21℃ D.B./15℃ W.B. 21 ℃ D.B./15℃ W.B.

Maximum

27℃ D.B./18℃ W.B. 24℃ D.B./18℃ W.B.

HEATING

Minimum

20℃ D.B/≤15℃ W.B -7℃ D.B./-8℃ W.B.

22.. SSPPEECCIIFFIICCAATTIIOONNSS

2

2-1. Unit specifications

2-1-1.OUTDOOR UNIT

NOTE :Test conditions：

Cooling : Indoor: DB27℃/ WB19℃ Outdoor: DB35℃/ WB24℃
Heating: Indoor: DB20℃/ WB15℃ Outdoor: DB7℃/ WB 6℃

Model AMW4-28U4SKC AMW3-24U4SKC AMW2-20U4SNC AMW2-16U4SGC
Function Cooling Heating Cooling Heating Cooling Heating Cooling Heating
Power supply a.c 220V~240V/50Hz

Capacity k

W

8.2 9.0 7.0 8.0 5.8 6.4 4.6 5.3

Dehumidification

l /h

---- ---- ---- ---- ---- ---- ---- ----

Capacity

Air flow

m

3

/

h

---- ---- ---- ---- ---- ---- ---- ----

Rated current A 10.7 11.1 9.7 10.1 7.7 8.0 6.1 5.7
Rated input k

W

2.4 2.49 2.18 2.21 1.7 1.75 1.4 1.3
Auxiliary heater A -----­Power factor %

99.9％ 99.9％ 99.9％ 99.9％

Electrical data

Max. current A 15.0 15.0 14.5 14.5

SEER/HSPF ----

Model

ATL165SD-C9AU

DA130S1C-20FZ DA130S1C-20FZ

Compressor

Winding resistance

Ω 0.590

(at75℃) 0.95（20℃） 0.95（20℃）

Model YDK70-6H-3 YDK55-6I-8 YDK29-6I-22 Outdoor

fan motor

Winding resistance (at20℃)

Ω

M:78;A:80 M:185;A:200 M:283.5;A:180

Net size

L×W×H

cm

109×41×84 98×35×64

80×26×57

Package size

L×W×H

cm

112×46×98 108×42×72

94×36×64

Net weight kg 67 66 46.2 37.5
Gross weight kg 77 72 52.5 41

Liquid pipe m

m

6.35×4 6.35×3 6.35×2 6.35×2

Gas pipe m

m

9.52×4 9.52×3 9.52×2 9.52×2

Refrigerant
piping

Connection method Flare Flare Flare
Air direction ---- ---- ---- ----

Sound level (Hi) dB 57 57 56

Fan speed (Hi) rp

m

840 840 900

Fan speed regulator 3 3 3
Refrigerant filling

capacity(R410a)

kg 2.1 2.4 1.4 1.0

Special
remarks

Throttle mode

EEV EEV EEV EEV

22.. SSPPEECCIIFFIICCAATTIIOONNSS

3

2-1-2.INDOOR UNIT

NOTE :Test conditions：

Cooling : Indoor: DB27℃/ WB19℃ Outdoor: DB35℃/ WB24℃
Heating: Indoor: DB20℃/ WB15℃ Outdoor: DB7℃/ WB 6℃

Model

AMS-07UR4SNZA3
AMS-09UR4SNZA3

AMS-12UR4SNZA3

AMS-18R4SPZA3

Function Cooling Heating Cooling Heating Cooling Heating
Power supply a.c 220V~240V/50Hz

Capacity kW 2.6 3.0 3.2 3.8 4.8 5.5
Dehumidification l /h 1.1 ---- 1.4 ---- 1.5 ----

Capacity

Air flow m3/h 420 520 450 560 700 800
Running current A 0.18 0.18 0.18 0.18 0.2 0.18
Rated input kW 40 40 40 40 45 40
Auxiliary heater A ---­Power factor % ----

Electrical data

Starting current A ----

SEER/HSPF ----

Model ----

Compressor

Winding resistance (at25℃)

Ω ----

Model YYW16-4-532 YYW28-4-2085BIndoor

fan motor

Winding resistance (at20℃)

Ω M:364;A:400.5; M:246.2;A:191;

Model ---- Outdoor

fan motor

Winding resistance (at20℃)

Ω ----

Net size L×W×H cm

75×25×19

87×23×31

Package size L×W×H cm

84×31×27

96×40×34

Net weight kg 8.0 12.0
Gross weight kg 9.5 14.0

Liquid pipe mm 6.35
Gas pipe mm 9.52

Refrigerant
piping

Connection method ---­Air direction 6 6

Sound level (Hi) dB 37 49
Fan speed (Hi) rpm 1200 1300
Fan speed regulator 3 3

Refrigerant filling
capacity(R410a)

kg ----

Special
remarks

Throttle mode ----

22.. SSPPEECCIIFFIICCAATTIIOONNSS

4

NOTE :Test conditions：

Cooling : Indoor: DB27℃/ WB19℃ Outdoor: DB35℃/ WB24℃
Heating: Indoor: DB20℃/ WB15℃ Outdoor: DB7℃/ WB 6℃

Model AMD-09UX4SJC AMD-12UX4SJC AMD-18UX4SJC
Function Cooling Heating Cooling Heating Cooling Heating
Power supply a.c 220V~240V/50Hz

Capacity kW 2.6 3.0 3.2 3.7 5.0 5.5
Dehumidification l /h 1.5 ---- 1.5 ---- 1.9 ----

Capacity

Air flow m3/h 440 520 440 520 600 700
Running current A 0.2 0.2 0.2 0.2 0.3 0.3
Rated input kW 44 44 44 44 66 66
Auxiliary heater A ----
Power factor % ----

Electrical data

Starting current A ----

SEER/HSPF ----

Model ----

Compressor

Winding resistance (at25℃)

Ω ----

Model

YSK25-4G

YSK40-4E

Indoor
fan motor

Winding resistance (at20℃)

Ω M:247;A:150 M:247;A:150

Model ---- Outdoor

fan motor

Winding resistance (at20℃)

Ω ----

Net size L×W×H mm

770×600×190

770×600×190

Package size L×W×H mm

946×692×236

946×692×236

Net weight kg 20 21
Gross weight kg 24 25

Liquid pipe mm 6.35
Gas pipe mm 9.52

Refrigerant
piping

Connection method ----
Air direction ---- ----

Sound level (Hi) dB 35 37

Fan speed rpm

10pa：980/850/700
30pa：1150/1070/940

10pa：1290/1150/1010

30pa：1400/1310/1150

Fan speed regulator 6 6
Refrigerant filling

capacity(R410a)

kg ----

Special
remarks

Throttle mode ----

22.. SSPPEECCIIFFIICCAATTIIOONNSS

5

2-2. Major component specifications

2-2-1.INDOOR FAN MOTOR

PARAMETER

ELECTRIC
PERFORMANCE

AMS-07UR4SNZA3
AMS-09UR4SNZA3

AMS-12UR4SNZA3 AMS-18R4SPZA3

Motor model YYW16-4-532

YYW28-4-2085B
Rated power source 220V 50Hz 220V 50Hz
Phases/Poles 1/4 1/4
Rated load output(W) 16 28
Rated speed(r/min) -- 1250
Ambient
temperature(℃)

-5℃～+43℃. -5℃～+43℃

PARAMETER

ELECTRIC
PERFORMANCE

AMD-09UX4SJC AMD-12UX4SJC AMD-18UX4SJC

Motor model YSK25-4G YSK40-4E
Rated power source 220V 50Hz 220V 50Hz
Phases/Poles 1/4 1/4
Rated load output(W) 25 44
Rated speed(r/min) 1150/1070/940(Red)

980/850/700(White)

1400/1310/1150(Red)

1290/1150/1010(White)
Ambient
temperature(℃)

-5℃～+43℃. -5℃～+43℃

2-2-2 OUTDOOR FAN MOTOR

PARAMETER ELECTRIC

PERFORMANCE

AMW3-24U4SKC
AMW4-28U4SKC

AMW2-20U4SNC AMW2-16U4SGC

Motor model YDK70-6H-3

YDK55-6I-8

YDK29-6I-22
Rated power source 220V 50Hz 220V 50Hz 220V 50Hz
Phases /Poles 1/6 1/6 1/6
Rated load output(W) 65 47 28
Ambient
temperature(℃)

-5℃～+43℃ -5℃～+43℃ -5℃～+43℃

2-2-3. COMPRESSOR

PARAMETER ELECTRIC

PERFORMANCE

AMW3-24U4SKC
AMW4-28U4SKC

AMW2-20U4SNC
AMW2-16U4SGC

Compressor model ATL165SD-C9AU DA130S1C-20FZ
Compressor type Rotary Rotary
Rated power 1550W 990W
Current (A) 10.7 4.97

22.. SSPPEECCIIFFIICCAATTIIOONNSS

6

Motor type DC brushless motor DC brushless motor
Starting type DC Inverter DC Inverter

Motor

Winding resistance

0.59/0.59/0.59

Ω

(at 75℃)

U-V/V-W/W-U

0.95/0.95/0.95Ω(at 20℃)
U-V/V-W/W-U

Number of cylinder 2 2
Oil type

α68HES-H or equivalent

ESTER OIL VG74
Oil charge (cc) 880 500
Ambient temperature(℃) -5℃～+43℃. -5℃～+43℃

2-3. Other component specifications

2-3-1. INDUCTANCE

PARAMETER

ELECTRIC
PERFORMANCE

AMW3-24U4SKC
AMW4-28U4SKC

AMW2-20U4SNC
AMW2-16U4SGC

Inductance model R2550HSA R2050HSB
Rated power source 220V 50Hz 220V 50Hz
Rated current(A) 25 20
Rated inductance

5.0(mH)±10% 5.2（mH）±10%
Ambient
temperature(℃)

-20℃～+70℃. -20℃～+70℃.

2-3-2. FILTER

ELECTRIC
PERFORMANCE

AMW3-24U4SKC
AMW4-28U4SKC

AMW2-20U4SNC
AMW2-16U4SGC

Filter model

RTNF-250T10X-3LF

RTNF250-25T068X-03LF
Rated current(A) 20 20
Rated power
source

AC 220V—50Hz AC 220V—50Hz

Filter frequency
range

150K—30MHHz 150K—30MHHz

Temperature
range(℃)

-25℃～+85℃. -25℃～+85℃.

22.. SSPPEECCIIFFIICCAATTIIOONNSS

7

2-3-4. STEPPER MOTOR

PARAMETER

ELECTRIC
PERFORMANCE

AMS-07UR4SNZA3
AMS-09UR4SNZA3

AMS-12UR4SNZA3 AMS-18UR4SPZA3

Stepper Motor model 24BYJ48-CP 24BYJ48-B1
Voltage(DC) 12V 12V
Number of phase 4 4
Drive mode 1-2phase excitation unipolar drive 1-2phase excitation unipolar

drive

Resistance per phase

300Ω±7% 300Ω±7%
Temperature
range(℃)

-10℃～+40℃ -10℃～+40℃

2-3-5. OVERLOAD PROTECTION

NONE.

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOO

8

3-1. INDOOR（MODEL: AMS-07UR4SNZA3、AMS-09UR4SNZA3、AMS-12UR4SNZA3）

23mm631mm

94mm

190mm

250mm

750mm

50mm

50mm

50mm

65mm

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOO

9

3-2. INDOOR（MODEL: AMS-18UR4SPZA3）

50mm

50mm

50mm

271

195

779

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOO

10

3-3. INDOOR（MODEL: AMD-09UX4SJC/AMD-12UX4SJC/AMD-18UX4SJC）

47

57

508

740

780

808

595

630.2

740

190

688

676

140

168.4

145.5

122

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOO

11

3-3.OUTDOOR（MODEL: AMW2-16U4SGC）

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOO

12

3-4.OUTDOOR（MODEL: AMW2-20U4SNC）

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOO

13

3-5.OUTDOOR（MODEL: AMW3-24U4SKC、AMW4-28U4SKC）

44.. RREEFFRRIIGGEERRAANNTT FFLLOOWW DDIIAAGGRRAAM

M

14

4-1. Refrigerant flow diagram ：

MODEL：AMW3-24U4SKC、AMW4-28U4SKC

Filter

B机

A机

A机

C机

B机

D机

C机

D机

Remark： The part is only for AMW4-28U4SKC
COOLING CYCLE
HEATING CYCLE

44.. RREEFFRRIIGGEERRAANNTT FFLLOOWW DDIIAAGGRRAAM

M

15

MODEL：AMW2-20U4SNC AMW2-16U4SGC

EEV B

EEV A

4-way valve

Filter

B

机

A机

A机

B机

Filter

44.. RREEFFRRIIGGEERRAANNTT FFLLOOWW DDIIAAGGRRAAM

M

16

4-2. Evacuation procedures：

EVACUATION PROCEDURES

Connect the refrigerant pipes (both the liquid an

d

g

as pipes) between the indoor and the outdoor units.

Remove service port cap of the stop valve A and connect gage manifold valve and vacuum

p

ump to it.

Run the vacuum pump for more than 15 minutes and at this time confirm that the pressure
gage indicates -0.1Mpa(-76 cmHg).

Stop pump and keep the pressure for one or two minutes. Make sure the pressure is no
change(if the pressure is changed to high, there is some leakage for the pipe connection).

Remove gage manifold valve quickly from the service port of the stop valve A.
full open the stop valves A on gas and liquid pipe sides.

T ot al pi pe len gth is in the range :

N

o gas charge is needed

T ot al pipe length exceeding the limit:
Charge the prescribed amount of gas.

Tighten the cap to the service port to obtain the initial status.

Retighten the cap.

Leak test

Repeat the steps above for other valves(B\C\D), be sure all refrigerant pipes are
connected and evacuated, and all valves are full opend.

44.. RREEFFRRIIGGEERRAANNTT FFLLOOWW DDIIAAGGRRAAM

M

17

4-3. Evacuation direction：

MAX. Refrigerant pipe length and height difference:

Modle

AMW3-24U4SKC
AMW4-28U4SKC

AMW2-20U4SNC
AMW2-16U4SGC

Pipe length per. Indoor unit（a/b/c/d） 25m 20m
Total pipe length for multi-system (a+b+c+d) 60m 40m
Height difference (I.D ~ O.D) 15m 15m
Height difference (I.D ~ I.D) 7.5m 7.5m

*Do your best to reduce the pipe length. Long pipe may cause capacity of the indoor unit incline.

Total refrigerant pipe length

Outdoor unit precharged

0m~20m 20m～60m
AMW3-24U4SKC 2100g 0g
AMW4-28U4SKC 2400g 0g

Xg = 15g / m × (Total pipe length(m) - 20)

Total refrigerant pipe length

Outdoor unit precharged

0m~15m 15m～40m
AMW2-20U4SNC 1400g
AMW2-16U4SGC 1300g

0 Xg = 15g / m × (Total pipe length(m) - 15)

55.. EELLEECCTTRRIICCAALL DDAATTAA

18

5-1.Electrical wiring diagrams

INDOOR：
1）AMS-07UR4SNZA3、AMS-09UR4SNZA3、AMS-12UR4SNZA3

2）AMS-18UR4SPZA3

1338610

55.. EELLEECCTTRRIICCAALL DDAATTAA

19

2）AMD-09UX4SJC、AMD-12UX4SJC、AMD-18UX4SJC

30Pa

RED

YLW/GRN

RED

BLU

CN24

STEP

MOTOR

STEP
MOTOR

STEP
MOTOR

WHT

10Pa

GRAY

(FAN_MOTO)

BLU

CN18(FAN_N)

WHT

CN11(FAN_PRO)

FAN CAP

WATER
INSPECT

CN21(LEVER SWITCH)

STEP
MOTOR

CN05(HEAT_N)

CONTROL
BOARD

ELECTRIC WIRING DIAGRAM

CN10(FAN_MOTO)

CN13(FLAP)

CN14(FLAP)

CN15(FLAP)

CN16(FLAP)

CN12(PUMP)

CN23(DISPLAY)

CN17

CN09(TRANCE)

CN08(TRANCE)

CN01(L_IN)

CN02(N_IN)

CN03(SI)

FAN
MOTOR

ACFN

PUMP

DISPLAY
PANEL

TEMPERATURE
SENSOR

TRANSFORMER

BROWN

TO
OUTDOOR
UNIT

TERMINAL PANEL

4(SI)

1(L)

2(N)

3

HEAT

CN04(HEAT_L)

YLW/GRN

55.. EELLEECCTTRRIICCAALL DDAATTAA

20

OUTDOOR：
1）AMW4-28U4SKC

3( )

WHTBLK

AUXILIARY HEATER

CN10

CN9

CN201

T-DISS

CN205

T-GasD
REDYEL

22211

12 1

EXPANSION VALV E D

ELECTRONIC

5

5

CN401 D-EV BLU

432

2341166

SI-D

WHT

T02

1

1

YLW/GRN

4(SI)

2(N)

TERMINAL

1(L)

PANEL D

BLU

BRN

CONNECTION

CAPACITOR

BLU

RED

RED

4(SI)

2(N)

1(L)

4(SI)

2(N)

1(L)

2(N)

1(L)

FAN MOTOR

4-WAY VALVE

ELECTRIC WIRING DIAGRAM 1354457.A

COMPRESSOR

BLUWHT

CN101

CN102

1

1

2

2

3

3

4

4

5

5

IPM BOARD

ELECTROLYTIC

BLU

BRN

CN4

CN1

PRESSURE

CN8 WHT

321

321

7

7

65

4

564 8

899

10

10

VA

FILTER

CN7 FM WHT

12 21

CN6 VA

21

21

4

3

4

3

CN5

CN3

CN2

POWER FILTER BOARD

CN103 P

+

CN204

CAPACITOR

YLW

1

1

2

12
1

114423

23

8

8

65

5677 9910

10

BLU

2

BRN

2

CN203 L2ORG

113

2

3

2

22334

4

CN801 WHT

553

2

3

2

111

1

6

6

CN301 WHT

CN101

CN804

INDUCTOR

CN202 L1

T1 T2 T3

T1 T2

T3

T2

T3

66123

123

456

4

65

54321

32154

654

56

4

T1

121

11222112233

CN202

YEL

CN203BLU

GRN

6
6

11432

234

12345

4321 5

CN403 B-EV WHT

WHT BLK

T05

BLK
RED

1

1

T04

1

1

1

1

SI-A

SI-B

SI-C

2

2

CN404 A-EV RED

11543

345

BLU

T01

1

1

ORG

T03

6
6

CN204

T-DEF
CN207

T-LiqD
CN206

T-Liq-A -B -C T-COIL T-SUC T-OUTT-Gas-A -B -C

CONTROL BOARD

CN402 C-EV BLK

5
5

YLW/GRN

CN104 N

-

CN100

RED

C

N

3

0

2

W

H

T

EXPANSION VALVE B

EXPANSION VALVE A

ELECTRONIC

ELECTRONIC

ELECTRONIC

EXPANSION VALVE C

CM

FM

POWER
PANEL

TERMINAL

BLU

FUSE

BLK

CONNECTION

BRN

BLU

PANEL C

1(L)

TERMINAL

YLW/GRN

2(N)

4(SI)

CONNECTION

YLW/GRN

PANEL B

TERMINAL

BLU

BRN

CONNECTION
PANEL A

TERMINAL

YLW/GRN

BLU

BRN

YLW/GRN

BLK

RED

WHT

SI-N

BLK

OVERLOAD
PROTECTOR

CN208

CN105 WHT

C

N

3

0

1

W

H

T

CN200 LIN
CN201 NIN

U

V

W

RED

WHT

BLU

2）AMW3-24U4SKC：

3( )

WHT BLK

AUXILIARY HEATER

CN10

CN9

CN201

T-DISS
YEL

21

12

YLW/GRN

4(SI)

2(N)

TERMINAL

1(L)

PANEL C

BLU

BRN

CONNECTION

CAPACITOR

BLU

RED

RED

4(SI)

2(N)

1(L)

2(N)

1(L)

FAN MOTOR4-WAY VALVE

ELECTRIC WIRING DIAGRAM 1354463.A

1

1

2

2

3

3

4

4

5

5

ELECTROLYTIC

BLU

BRN

CN4

CN1

PRESSURE

CN8 WHT

321

321

7

7

654

564 8

899

10

10

VA

FILTER

CN7 FM WHT

1221
CN6 VA

212

1

4

3

4

3

CN5

CN3

CN2

POWER FILTER BOARD

+

CAPACITOR

YLW

1

1212

1

114423

23

8

8

65

5677 9910

10

BLU

2

BRN

2

ORG

113

2

3

2

22334

4

CN801 WHT

553

2

3

2

111

1

6

6

CN301 WHT

CN101

CN804

INDUCTOR

T1 T2 T3

T1 T2

T3

T2

T3

66123

123

456

4 65

54321

321 54

654

564

T1

112

2112233

CN202

YEL

CN203

BLU GRN

6
6

11432

234

12345

4321 5

CN403 B-EV WHT

BLK

T05

BLK
RED

1

1

T04

1

1

1

1

SI-A

SI-B

SI-C

2

2

CN404 A-EV RED

11543

345

BLU

T01

1

1

ORG

T03

6
6

CN204

T-DEF
CN207

T-Liq-A -B -C T-COIL T-SUC T-OUTT-Gas-A -B -C

CONTROL BOARD

CN402 C-EV BLK

5
5

YLW/GRN

-

EXPANSION VALVE B

EXPANSION VALVE A

ELECTRONIC

ELECTRONIC

ELECTRONIC

EXPANSION VALVE C

FM

POWER
PANEL

TERMINAL

BLU

FUSE

BLK

CONNECTION

BRN

BLU

PANEL B

1(L)

TERMINAL

YLW/GRN

2(N)

4(SI)

CONNECTION

YLW/GRN

PANEL A

TERMINAL

BLU

BRN

CONNECTION
PANEL A

TERMINAL

YLW/GRN

BLK

RED

WHT

SI-N

BLK

OVERLOAD

PROTECTOR

CN208

CN105 WHT

COMPRESSOR

BLUWHT

CN101

CN102

IPM BOARD

CN103 P
CN204

CN203 L2

CN202 L1

CN104 N

CN100

RED

C

N

3

0

2

W

H

T

CM

C

N

3

0

1

W

H

T

CN200 LIN

CN201 NIN

U

V

W

RED

WHT

BLU

55.. EELLEECCTTRRIICCAALL DDAATTAA

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3）AMW2-20U4SNC：

4）AMW2-16U4SGC：

55.. EELLEECCTTRRIICCAALL DDAATTAA

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5-2. Electric control

1. Control board for indoor unit
1） AMS-07UR4SNZA3、AMS-09UR4SNZA3、AMS-12UR4SNZA3

55.. EELLEECCTTRRIICCAALL DDAATTAA

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2）AMS-18UR4SPZA3

5V

GND

12V

Step Motor

Drving

Communication
Signal

ac 220V Lin

ac 220V Nin

FAN MOTOR
DRVING

TO DISPLAY
BOARD

ON/OFF
BUTTON

COIL
SENSOR

ROOM
SENSOR

FAN SPEED
FEEDBACK

55.. EELLEECCTTRRIICCAALL DDAATTAA

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3) AMD-09UX4SJC、AMD-12UX4SJC、AMD-18UX4SJC

55.. EELLEECCTTRRIICCAALL DDAATTAA

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2. Control board for outdoor unit（AMW3-24U4SKC、AMW4-28U4SKC）

1）FILTER BOARD

3.15 /250

2)CONTROL BOARD

D Valve
Drving

C Valve
Drving

B Valve
Drving

A Valve
Drving

High Pressure Protection

Compressor Discharge Sensor

Outdoor/

Suction/

Condensor

Sensor

Liquid
Pipe A/B/C
Sensor

Gas

A/B/C

Sensor

Gas D Sensor

Liquid Pipe
D Sensor

Defrose

Sensor

Overload
Protection

Communication

Signal A

Communication
Signal B

Communication
Signal C

Communication
Signal N

Communication

Signal D

IPM
POWER

To Filter
Board

To IPM
Board

DC -

DC +

DC in

55.. EELLEECCTTRRIICCAALL DDAATTAA

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3)IPM Board

5V

GND

15V

To Main Control
Board

To Compressor U

To Compressor V

To Compressor W

IPM Power

To Electrolytic
Capacitor -

To Electrolytic
Capacitor +

To Electrolytic

Capacitor +

To PFC
Inductor-2

To PFC
Inductor-1

ac N in

ac L in

55.. EELLEECCTTRRIICCAALL DDAATTAA

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3. Control board for outdoor unit（AMW2-16U4SGC AMW2-20U4SNC）

1）IPM Board

To Compressor U

To Compressor V

To Compressor W

To Electrolytic
Capacitor +

To Electrolytic
Capacitor +

To Main Control
Board

IPM Power

To Electrolytic
Capacitor -

To PFC Inductor-2

To PFC Inductor-1

ac N in

ac L in

2)CONTROL BOARD

Overload
Protection

Gas B Sensor

Liquid A/B &

Gas A Sensor

Outdoor/Suction/
Condensor Sensor

Compressor
Discharge Sensor

B VALVE DRVING

B VALVE
DRVING

DC-

DC+

To IPM Board
(Power)

To IPM Board

(Communication)

4-Way Valve
Drving

Fan Motor Drving

ac N out

ac L out

Earth Wire

ac N in

ac L in

55.. EELLEECCTTRRIICCAALL DDAATTAA

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5-3. Sensor parameter

1. THE PARAMETER OF OUTDOOR COMPRESSOR TEMPERATURE SENSOR:
（R

0

=187.25K±6.3%；R

100

=3.77K±2.5K；B=3979±1%）

T(℃) R(KΩ) V(v) DEC HEX T(℃) R(KΩ) V(v) DEC HEX T(℃) R(KΩ) V(v) DEC HEX

-30 966.1 0.1014 5 5 26 55.46 1.3252 68 44 82 6.662 3.7507 191

BF

-29 910.3 0.1075 5 5 27 53.11 1.3678 70 46 83 6.446 3.7813 193

C1

-28 858 0.1139 6 6 28 50.86 1.4112 72 48 84 6.239 3.8111 194

C2

-27 809 0.1206 6 6 29 48.72 1.4552 74

4A

85 6.039 3.8404 196

C4

-26 763.1 0.1277 7 7 30 46.68 1.4997 76

4C

86 5.846 3.8691 197

C5

-25 720 0.1351 7 7 31 44.74 1.5446 79

4F

87 5.661 3.8970 199

C7

-24 679.6 0.1429 7 7 32 42.89 1.5901 81 51 88 5.482 3.9243 200

C8

-23 641.7 0.1511 8 8 33 41.13 1.6359 83 53 89 5.309 3.9512 202

CA

-22 606.1 0.1597 8 8 34 39.44 1.6824 86 56 90 5.143 3.9773 203

CB

-21 572.7 0.1687 9 9 35 37.84 1.7289 88 58 91 4.982 4.0029 204

CC

-20 541.3 0.1782 9 9 36 36.3 1.7762 91

5B

92 4.827 4.0279 205

CD

-19 511.7 0.1881 10

A

37 34.84 1.8235 93

5E

93 4.678 4.0522 207

CF

-18 484 0.1984 10

A

38 33.44 1.8713 95

5F

94 4.534 4.0760 208

D0

-17 457.9 0.2092 11

B

39 32.11 1.9190 98 62 95 4.395 4.0992 209

D1

-16 433.3 0.2206 11

B

40 30.83 1.9673 100 64 96 4.261 4.1218 210

D2

-15 410.2 0.2325 12

C

41 29.61 2.0157 103 67 97 4.132 4.1439 211

D3

-14 388.5 0.2448 12

C

42 28.45 2.0640 105 69 98 4.007 4.1655 212

D4

-13 368 0.2577 13

D

43 27.34 2.1124 108

6C

99 3.886 4.1866 214

D6

-12 348.7 0.2712 14

E

44 26.27 2.1612 110

6E

100 3.77 4.2070 215

D7

-11 330.5 0.2853 15

F

45 25.25 2.2099 113 71 101 3.658 4.2269 216

D8

-10 313.4 0.2999 15

F

46 24.28 2.2584 115 73 102 3.549 4.2465 217

D9

-9 297.2 0.3153 16 10 47 23.35 2.3068 118 76 103 3.444 4.2655 218

DA

-8 281.9 0.3312 17 11 48 22.46 2.3552 120 78 104 3.343 4.2839 218

DA

-7 267.5 0.3478 18 12 49 21.6 2.4038 123

7B

105 3.15 4.3197 220

DC

-6 253.9 0.3651 19 13 50 20.79 2.4516 125

7D

106 3.059 4.3367 221

DD

-5 241.1 0.3830 20 14 51 20.01 2.4994 127

7F

107 2.97 4.3535 222

DE

-4 229 0.4016 20 14 52 19.26 2.5471 130 82 108 2.884 4.3699 223

DF

-3 217.6 0.4209 21 15 53 18.54 2.5947 132 84 109 2.802 4.3856 224

E0

-2 206.8 0.4409 22 16 54 17.85 2.6420 135 87 110 2.721 4.4012 224

E0

-1 196.6 0.4617 24 17 55 17.19 2.6889 137 89 111 2.721 4.4012 224

E0

0 186.9 0.4833 25 18 56 16.56 2.7352 139

8B

112 2.644 4.4162 225

E1

1 177.8 0.5056 26 19 57 15.96 2.7809 142

8E

113 2.569 4.4309 226

E2

2 169.2 0.5285 27

1A

58 15.38 2.8265 144 90 114 2.496 4.4452 227

E3

3 161 0.5525 28

1B

59 14.82 2.8719 146 92 115 2.426 4.4591 227

E3

4 153.3 0.5770 29

1C

60 14.29 2.9163 149 95 116 2.358 4.4727 228

E4

5 146 0.6024 31

1E

61 13.78 2.9603 151 97 117 2.292 4.4859 229

E5

6 139 0.6289 32

1F

62 13.28 3.0048 153 99 118 2.228 4.4988 229

E5

7 132.5 0.6557 33 21 63 12.81 3.0479 155

9B

119 2.167 4.5112 230

E6

8 126.3 0.6835 35 23 64 12.36 3.0902 158

9E

120 2.107 4.5235 231

E7

9 120.4 0.7123 36 24 65 11.93 3.1319 160

A0

121 2.049 4.5354 231

E7

10 114.8 0.7418 38 26 66 11.51 3.1736 162

A2

122 2.049 4.5354 231

E7

11 109.5 0.7722 39 27 67 11.11 3.2144 164

A4

123 1.994 4.5467 232

E8

12 104.4 0.8039 41 29 68 10.73 3.2541 166

A6

124 1.887 4.5689 233

E9

13 99.66 0.8357 43

2B

69 10.36 3.2938 168

A8

125 1.836 4.5796 234

EA

14 95.13 0.8686 44

2D

70 10 3.3333 170

AA

126 1.787 4.5899 234

EA

15 90.82 0.9024 46

2C

71 9.659 3.3717 172

AC

127 1.739 4.6000 235

EB

16 86.74 0.9369 48

2E

72 9.331 3.4094 174

AE

128 1.693 4.6098 235

EB

17 82.85 0.9723 50 32 73 9.016 3.4464 176

B0

129 1.649 4.6192 236

EC

18 79.16 1.0085 51 33 74 8.712 3.4829 178

B2

130 1.605 4.6286 236

EC

19 75.65 1.0455 53 35 75 8.421 3.5185 179

B3

20 72.32 1.0832 55 37 76 8.14 3.5537 181

B5

21 69.15 1.1217 57 39 77 7.869 3.5882 183

B7

22 66.13 1.1610 59

3B

78 7.609 3.6220 185

B9

23 63.27 1.2009 61

3D

79 7.359 3.6551 186

BA

24 60.54 1.2416 63

3F 80

7.118 3.6876 188

BC

25 57.94 1.2830 65 41 81 6.885 3.7195 190

BE

55.. EELLEECCTTRRIICCAALL DDAATTAA

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2. THE PARAMETER OF THE OTHER SENSOR IN INDOOR AND OUTDOOR UNIT：
（R

0

=15K±2%；B=3450±2%）

T(℃) R(KΩ) V(v) DEC HEX T(℃) R(KΩ) V(v) DEC HEX T(℃) R(KΩ) V(v) DEC HEX

-30 67.94 0.3235 16 10 18 6.962 2.0151 103 67 66 1.297 3.9186 200 C8

-29 64.25 0.3408 17 11 19 6.688 2.0636 105 69 67 1.258 3.9443 201 C9

-28 60.79 0.3588 18 12 20 6.427 2.1120 108 6C 68 1.22 3.9696 202 CA

-27 57.53 0.3776 19 13 21 6.178 2.1603 110 6E 69 1.184 3.9939 204 CC

-26 54.48 0.3971 20 14 22 5.939 2.2089 113 71 70 1.149 4.0178 205 CD

-25 51.6 0.4174 21 15 23 5.712 2.2570 115 73 71 1.116 4.0406 206 CE

-24 48.9 0.4384 22 16 24 5.494 2.3053 118 76 72 1.083 4.0636 207 CF

-23 46.35 0.4603 23 17 25 5.286 2.3533 120 78 73 1.051 4.0862 208 D0

-22 43.96 0.4829 25 19 26 5.086 2.4014 122 7A 74 1.021 4.1077 209 D1

-21 41.7 0.5065 26 1A 27 4.896 2.4489 125 7D 75 0.9914 4.1290 211 D3

-20 39.58 0.5307 27 1B 28 4.714 2.4963 127 7F 76 0.963 4.1497 212 D4

-19 37.58 0.5558 28 1C 29 4.539 2.5436 130 82 77 0.9354 4.1701 213 D5

-18 35.69 0.5818 30 1E 30 4.372 2.5904 132 84 78 0.9088 4.1898 214 D6

-17 33.91 0.6087 31 1F 31 4.212 2.6369 134 86 79 0.8831 4.2091 215 D7

-16 32.23 0.6363 32 20 32 4.059 2.6830 137 89 80 0.8582 4.2280 216 D8

-15 30.65 0.6648 34 22 33 3.912 2.7288 139 8B 81 0.8342 4.2463 217 D9

-14 29.15 0.6942 35 23 34 3.772 2.7738 141 8D 82 0.8109 4.2643 217 D9

-13 27.74 0.7244 37 25 35 3.637 2.8188 144 90 83 0.7884 4.2818 218 DA

-12 26.4 0.7556 39 27 36 3.508 2.8631 146 92 84 0.7666 4.2988 219 DB

-11 25.14 0.7875 40 28 37 3.384 2.9070 148 94 85 0.7455 4.3155 220 DC

-10 23.95 0.8202 42 2A 38 3.265 2.9504 150 96 86 0.725 4.3318 221 DD

-9 22.82 0.8539 44 2C 39 3.151 2.9932 153 99 87 0.7053 4.3476 222 DE

-8 21.75 0.8885 45 2D 40 3.041 3.0358 155 9B 88 0.6861 4.3631 223 DF

-7 20.74 0.9237 47 2F 41 2.936 3.0775 157 9D 89 0.6676 4.3781 223 DF

-6 19.79 0.9596 49 31 42 2.835 3.1188 159 9F 90 0.6496 4.3929 224 E0

-5 18.88 0.9966 51 33 43 2.739 3.1590 161 A1 91 0.6323 4.4071 225 E1

-4 18.02 1.0343 53 35 44 2.646 3.1990 163 A3 92 0.6156 4.4209 225 E1

-3 17.2 1.0731 55 37 45 2.556 3.2387 165 A5 93 0.5993 4.4345 226 E2

-2 16.43 1.1122 57 39 46 2.471 3.2771 167 A7 94 0.5836 4.4477 227 E3

-1 15.7 1.1520 59 3B 47 2.388 3.3155 169 A9 95 0.5683 4.4606 227 E3
0 15 1.1929 61 3D 48 2.309 3.3528 171 AB 96 0.5535 4.4732 228 E4
1 14.34 1.2342 63 3F 49 2.233 3.3896 173 AD 97 0.5391 4.4855 229 E5
2 13.71 1.2765 65 41 50 2.159 3.4262 175 AF 98 0.5251 4.4975 229 E5
3 13.11 1.3195 67 43 51 2.089 3.4615 177 B1 99 0.5115 4.5093 230 E6
4 12.55 1.3623 69 45 52 2.021 3.4965 178 B2 100 0.4983 4.5207 231 E7
5 12.01 1.4063 72 48 53 1.956 3.5306 180 B4 101 0.4855 4.5319 231 E7
6 11.5 1.4506 74 4A 54 1.893 3.5644 182 B6 102 0.4731 4.5427 232 E8
7 11.01 1.4959 76 4C 55 1.832 3.5977 183 B7 103 0.461 4.5534 232 E8
8 10.55 1.5410 79 4F 56 1.774 3.6299 185 B9 104 0.4492 4.5638 233 E9
9 10.1 1.5878 81 51 57 1.718 3.6616 187 BB 105 0.4378 4.5739 233 E9

10 9.684 1.6338 83 53 58 1.664 3.6926 188 BC 106 0.4268 4.5838 234 EA
11 9.284 1.6805 86 56 59 1.612 3.7231 190 BE 107 0.416 4.5934 234 EA
12 8.903 1.7276 88 58 60 1.562 3.7528 191 BF 108 0.4055 4.6029 235 EB
13 8.54 1.7749 91 5B 61 1.513 3.7824 193 C1 109 0.3953 4.6121 235 EB
14 8.194 1.8226 93 5D 62 1.467 3.8106 194 C2 110 0.3854 4.6211 236 EC
15 7.864 1.8704 95 5F 63 1.422 3.8386 196 C4
16 7.549 1.9185 98 62 64 1.379 3.8658 197 C5
17 7.249 1.9667 100 64 65 1.337 3.8927 199 C7

55.. EELLEECCTTRRIICCAALL DDAATTAA

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3. THE PARAMETER OF THE OTHER SENSOR IN INDOOR AND OUTDOOR UNIT：
（R

25

=15K±3%；B

（

25/50

）

=4100±3%）

T(℃) R(KΩ ) V(v ) DE C HEX T(℃)R(KΩ ) V(v) DE C HEX T(℃)R(KΩ) V( v) D EC HEX

-20 154.57 7 0.4 423 23 17 28 12.635 2.7139 138 8A 76 1. 944 4. 4263 226 E 2

-19 145.16 1 0.4 683 24 18 29 12.062 2.7714 141 8D 77 1. 877 4. 4439 227 E 3

-18 136.72 4 0.4 943 25 19 30 11.519 2.8282 144 90 78 1. 814 4. 4606 227 E 3

-17 128.83 5 0.5 214 27 1B 31 11.436 2.8370 145 91 79 1. 753 4. 4768 228 E 4

-16 121.45 5 0.5 496 28 1C 32 10.942 2.8911 147 93 80 1. 694 4. 4926 229 E 5

-15 114.54 8 0.5 789 30 1E 33 10.472 2.9444 150 96

-14 108.08 0 0.6 094 31 1F 34 10.025 2.9970 153 99

-13 102.02 0 0.6 409 33 21 35 9. 6 3.04 88 155 9B

-12 96.34 1 0.6 736 34 22 36 9.196 3.0997 158 9E

-11 91.01 7 0.7 074 36 24 37 8.811 3.1498 161 A1

-10 86.02 2 0.7 424 38 26 38 8.444 3.1991 163 A3

-9 81.334 0.7785 40 28 39 8.095 3.2475 166 A6

-8 76.933 0.8158 42 2A 40 7.763 3.2948 168 A8

-7 72.799 0.8542 44 2C 41 7.446 3.3414 170 AA

-6 68.914 0.8938 46 2E 42 7.144 3.3869 173 AD

-5 65.262 0.9344 48 30 43 6.856 3.4316 175 AF

-4 61.828 0.9762 50 32 44 6.581 3.4753 177 B1

-3 58.597 1.0191 52 34 45 6.319 3.5180 179 B3

-2 55.555 1.0630 54 36 46 6.069 3.5597 182 B6

-1 52.691 1.1080 57 39 47 5.8 3 3.60 06 184 B8
0 49.994 1.1540 59 3B 48 5.602 3.6404 186 BA
1 47.452 1.2009 61 3D 49 5.385 3.6792 188 BC
2 45.055 1.2489 64 40 50 5.177 3.7171 190 BE
3 42.795 1.2977 66 42 51 4.9 7 3.75 56 192 C0
4 40.663 1.3474 69 45 52 4.773 3.7931 193 C1
5 38.650 1.3979 71 47 53 4.585 3.8295 195 C3
6 36.750 1.4493 74 4A 54 4.406 3.8648 197 C5
7 34.956 1.5013 77 4D 55 4.234 3.8993 199 C7
8 33.260 1.5541 79 4F 56 4.071 3.9327 201 C9
9 31.657 1.6075 82 52 57 3.914 3.9653 202 CA

10 30.142 1.6614 85 55 58 3.765 3.9968 204 CC
11 28.709 1.7159 88 58 59 3.622 4.0275 205 CD
12 27.352 1.7709 90 5A 60 3.485 4.0573 207 CF
13 26.069 1.8262 93 5D 61 3.355 4.0861 208 D0
14 24.853 1.8819 96 60 62 3.2 3 4.11 41 210 D2
15 23.702 1.9379 99 63 63 3.1 1 4.14 14 211 D3
16 22.611 1.9941 102 66 64 2.99 6 4.16 76 213 D5
17 21.577 2.0505 105 69 65 2.88 6 4.19 32 214 D6
18 20.597 2.1069 107 6B 66 2.78 1 4.21 80 215 D7
19 19.667 2.1634 110 6E 67 2.68 1 4.24 18 216 D8
20 18.785 2.2199 113 71 68 2.58 4 4.26 52 218 DA
21 17.948 2.2763 116 74 69 2.49 2 4.28 77 219 DB
22 17.153 2.3326 119 77 70 2.40 3 4.30 96 220 DC
23 16.398 2.3887 122 7A 71 2.31 9 4.33 05 221 DD
24 15.681 2.4445 125 7D 72 2.23 7 4.35 11 222 DE
25 15.000 2.5000 128 80 73 2.15 9 4.37 09 223 DF
26 14.326 2.5575 130 82 74 2.08 4 4.39 01 224 E0

27 13.687 2.6144 133 85 75 2.01 3 4.40 84 225 E1

66.. CCOONNTTRROOLL MMOODDEEL

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INDOOR CONTROL MODE（AMS-07UR4SNZA3、AMS-09UR4SNZA3、

AMS-12UR4SNZA3、AMS-18UR4SPZA3）

1.Major general technical parameters

1 Conditionings for operation: Ambient temperatures: (-15 - +45 ℃), relative humidity (45 - 85%).
2 Remote receiver distance: 8 m.
3 Remote receiver angle: Less than 80 degrees.
4 Temperature control accuracy: ±1℃.
5 Time error: Less than 1%.
6 The power supply for the air conditioner is a.c 220V～240V, 50Hz, with its fluctuation in the range of

(176V – 264 V).

2. Functions of the controller

2.1 Display panel

I. Control functions of the remote controller (See operating and installation manual)
II. Display of the indoor unit

The picture of the display is as follows:

Frequency Indoor Tmp. Outdoor Tmp. Timer

III. Displaying Scheme:

1. Timer: Enabled (the “Clock” sign appears), Cancel (the “Clock” sign disappears)

2. Indoor temperature: the “House” sign goes on. and the value is current temperature of indoor. The

range of the value is from “-9” to “35”.
Outdoor temperature: the “House” sign goes on. and the value is current temperature of outdoor. The
range of the value is from “-19” to “45”.
“— —” will displayed when communication of indoor unit and outdoor unit abnormal.

3. Frequency: stand for the speed of compressor.

4. Display of error codes:

An error code will displayed when error occurred. You can show the code by push “H.P.” button on
remote controller 5 times. The error code will flash for 5 seconds while displayed. The “House” sign goes
on and all other signs go off.

3. Control function

3.1 Emergency switch

1. When the machine is turned OFF, by press and hold the emergency switch for 5 seconds, with 3 beeps ,

the indoor unit would turn to emergency run. In such station, machine would be forced to turn to cooling
operation with the indoor fan speed being set at high speed, the flaps sweeping and the air conditioner’s
operation is irrelevant with room temperatures.

2. If a remote signal has been received during the emergency run, the machine will operate upon the

command of such a remote signal.

66.. CCOONNTTRROOLL MMOODDEEL

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3.2 Operator-machine communication

The air conditioner has a thermal sensor to detect room temperatures. Some remote controller is
equipped with a thermal sensor (Such remote controller has the function of man-machine communication.
For details, refer to the section for the remote controller). In addition, there is a thermal sensor at the
indoor air inlet. In the case where the remote controller is equipped with a thermal sensor, the default
setting for room temperatures is subject to the detection by the remote controller. The remote controller
detects the room temperature once every 20 seconds, and automatically transmits a signal at an interval
of 3 minutes or when a change in the room temperature is detected. If the indoor control unit has not
received a remote signal for more than 10 minutes, the control function will be automatically switched
over to the thermal sensor on the indoor unit.

3.3 Timer function

1. Timer on: When set to start in a time by the remote controller, the air conditioner starts in the timer on

condition. When the set time is up, the air conditioner will turn on and operates in the preset conditions
after receiving a signal from the remote controller. If the air conditioner has not received a signal from the
remote controller when the set time is up, it will automatically start and operate in the preset conditions.

2. Timer off: When set to stop in a set time by the remote controller, the air conditioner will start in the timer

off condition. When the set time is up, the air conditioner will turn off after receiving a signal from the
remote controller. If the air conditioner has not received a signal from the remote controller when the set
time is up, it will turn off automatically.

3. Neither the turning on nor turning off operation will cancel the timer function (Some remote controller has

a simple one-hour timer off function and excludes this operation).

3.4 Sleep

1. In the heating, cooling or dehumidifying mode, press the “Sleep” button on the remote controller to start

or cancel the sleep function in turn, and at the same time the sleep icon on the display screen will be on
or off accordingly.

2. In the heating mode, the set temperature will decrease automatically after the sleep function is started.

3. In the cooling mode, the set temperature will rise aotomatically after the sleep function is started.

4. In default, the setting is to cancel the sleep function. Turning off the unit will also cancel the sleep

function.

3.5 High efficient run function

In the heating (except for the cooling-only unit), cooling or dehumidifying mode, it may be set for high
efficient run with the indoor fan speed changed to the high efficient fan speed and the compressor
operating at the highest frequency as available. If the display screen can display the frequency, the
frequency displayed on the screen is up to the maximum. It will restore to the previous run state after 15
minutes operation automatically.

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3.9 Cold air prevention

In the heating-run, to prevent the indoor fan from blowing cold air, the indoor fan will stop or run
slowly until the coil is warmth.

3.10 Mode interfere

For the reason that all indoor units use one outdoor unit, outdoor unit can only run with same
mode(cooling or heating), so, when the mode you set is different from the mode that outdoor is running
with, mode interfere occurs. Following shows the mode interfere scene.

cooling dry heating fan
cooling √ √ × √ √ --- normal
dry √ √ × √ × --- mode interfere
heating × × √ ×
fan √ √ × √
Outdoor unit always run with the mode of first indoor unit that turned on. when the setting mode of

following indoor unit is interfered with it, 3 beeps would be heard, and the indoor unit interfered with the
normal running units would turn off automatically.

66.. CCOONNTTRROOLL MMOODDEEL

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34

Outdoor mode control （ AMW3-24U4SKC、 AMW4-28U4SKC、 AMW2-20U4SNC、
AMW2-16U4SGC）

1. Summarization

This direction applies to multi-type and DC variable frequency air conditioner

2. Performance index

1. Voltage scale: 176V～264V，50Hz

2. Storage temperature scale: -40℃～85℃

3. Storage humidity scale: PH30％～PH95％

4. Working temperature:-20℃～85℃

5. accuracy for temperature control： ±0.5℃

3．Control function

Cooling Anti-freeze Protection

To prevent freezing caused by too low temperature of indoor evaporator, the air conditioner will

implement real-time detection over the indoor coil temperature. If the indoor coil temperature is too low, the

compressor will be prohibited from increasing the frequency or decrease the frequency even shut down

automatically

Heating Overload Protection

To prevent system overload caused by excessive pressure in heating operation, the machine will

implement real-time detection over the indoor fan-coil temperature:

If the indoor coil temperature grows higher, the compressor will be prohibited from increasing the

frequency; If the temperature continues to rise, the compressor will decrease the frequency; If the indoor

coil temperature is too high, the compressor will stop working immediately. The compressor then will

reboot after the indoor coil temperature reduces.

Cooling Overload Protection

To prevent system overload due to excessive pressure during cooling operation, the machine will

implement real-time detection over the outdoor condenser coil temperature:

If the outdoor coil temperature grows higher, the compressor will be prohibited from increasing the

frequency; If the temperature continues to rise, the compressor will decrease the frequency; If the outdoor

fan-coil temperature is too high, then the compressor will stop working immediately. The compressor will

reboot after the outdoor coil temperature reduces.

Discharge Temperature Protection

To prevent working conditions of compressor from deteriorating due to high discharge temperature,

the machine will implement real-time detection over the discharge temperature.

If the discharge temperature grows higher, the compressor will be prohibited from increasing the

frequency; if the temperature continues to rise, the compressor will decrease the frequency automatically;

if the discharge temperature is too high, the compressor will stop working immediately. The compressor

will then reboot when the discharge temperature returns to normal condition.

66.. CCOONNTTRROOLL MMOODDEEL

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35

Oil-return Control

When the compressor continues to operate at low frequency, there will be an oil return. The

compressor increases the frequency, and thus to return the oil in refrigerate system to the

compressor.

Operation Mode

1 Mode Categories

Air conditioning mode is the operation mode set by users through remote controller, four modes are

available: cooling, heating, dehumidification, as well as fan mode.

2 Mode conflict

The operating mode of outdoor unit is decided by the operating mode of the indoor unit firstly booted.

Indoor unit subsequently booted will firstly determine whether it’s own mode is conflict with the outdoor

mode. If so, the indoor unit will automatically shut down after three beeps; If there is no conflict, the indoor

unit will boot normally. The relationship of mode conflict is as follows:

Driven choice

Active mode

Cooling Dehumidification Heating fan

Cooling √ √ × √

Dehumidification √ √ × √

Heating × × √ ×

fan √ √ × √

√―――Mode conflict will not happen
×―――

Mode conflict will happen

Outdoor four-way Valve Control

Four-way valve of the outdoor machine shuts down when cooling but starts when heating. The

operation of heating defrosting refers to defrosting operation and, when the heating remote shutdown, the

four-way valve disconnects in 50s when the compressor stops working.

Start-up Protection:

To prevent compressor from restart frequently in the condition that system pressure has not been

completely balanced, it can’t be restarted within 3 minutes.

Pressure Protection:

Pressure switch is normally kept open. When the pressure grows too high, the pressure switch will

close and soft will enter pressure protection control. soft will automatically decrease the frequency. If the

pressure is still unable to return to normal condition after decreasing frequency, compressor will stop and

report the fault code of pressure protection.

66.. CCOONNTTRROOLL MMOODDEEL

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36

Fault code 1:

If the unit reports the following fault code, compressor will stops, and the unit can’t be

operated until the failure is eliminated:

5 Communication fault with IPM

6 Suction sensor fault

7 Discharge sensor fault

8 Top of the compressor sensor fault

9 Outdoor coil temperature sensor fault

10 Defrosting sensor fault

11 Outdoor temperature sensor fault

12 Liquid pipe sensor on valve A fault

13 Liquid pipe sensor on valve B fault

14 Liquid pipe sensor on valve C fault

15 Liquid pipe sensor on valve D fault

16 Gas pipe sensor on valve A fault

17 Gas pipe sensor on valve B fault

18 Gas pipe sensor on valve C fault

19 Gas pipe sensor on valve D fault

20 Current sensor fault

21 Voltage sensor fault

23 Emergency shutdown for discharge temperature abnormal

24 Emergency shutdown for current abnormal

25 Indoor unit A boot fault for freeze protection

26 Indoor unit B boot fault for freeze protection

27 Indoor unit C boot fault for freeze protection

28 Indoor unit D boot fault for freeze protection

29 Shut down for mode conflict

30 Emergency shutdown for IPM failure

31 Emergency shutdown for cooling overload

32 Emergency shutdown for discharge pressure is too high

33 Indoor ambient temperature sensor fault

34 Indoor coil temperature sensor fault

36 Communication fault with indoor unit
37 Condensate in indoor unit is overflow

38 EEPROM of indoor unit error

39 Indoor fan motor fault

41 Indoor AC zero-crossing detection fault

66.. CCOONNTTRROOLL MMOODDEEL

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37

Fault code 2:

if the unit reports the following fault code, the indoor unit which fault will be seen as

shutdown, while other indoor units can operate normally.

1 A Communication Fault

2 B Communication Fault

3 C Communication Fault

4 D Communication Fault

22 EEPROM of outdoor unit fault (the unit will operate in accordance with the

default value)

40 Freeze protection or high-temperature protection of indoor unit A.

41 Freeze protection or high-temperature protection of indoor unit B.

42 Freeze protection or high-temperature protection of indoor unit C.

43 Freeze protection or high-temperature protection of indoor unit D.

Limit code:
When compressor run, limited frequency or decreasing frequency code is as follows:

1 Frequency forbid by discharge temperature control

2 Frequency forbid by current control

3 Frequency forbid for coil temperature control of indoor unit A

4 Frequency forbid by coil temperature control of indoor unit B

5 Frequency forbid by coil temperature control of indoor unit C

6 Frequency forbid by coil temperature control of indoor unit D

7 TBD

8 Frequency decrease by discharge temperature control

9 Frequency decrease by current control

10 TBD

11 Frequency decrease by coil temperature control of indoor unit A

12 Frequency decrease by coil temperature control of indoor unit B

13 Frequency decrease by coil temperature control of indoor unit C

14 Frequency decrease by coil temperature control of indoor unit D

15 Frequency decrease by IPM

16 Frequency decrease for outdoor overload in cooling mode.

17 Valve opening-control by DSH(or SSH) control

18 Valve closing-control by DSH(or SSH) control

19 Forbid close valve by DSH(or SSH) control

20 Forbid open valve by DSH(or SSH) control

21 Frequency forbid for cooling overload

22 Frequency forbid by IPM

23 Frequency decrease for discharge pressure is too high.

77.. TTRROOUUBBLLEE SSHHOOOOTTIINNGG

38

7-1. Trouble alarm

7-1-1.To display error code（AMS-07UR4SNZA3、AMS-09UR4SNZA3、AMS-12UR4SNZA3

、

AMS-18UR4SPZA3）:

When error occurred, error code can be displayed on the screen of indoor unit through
remoter or emergency switch. To display the error code, refer to the following:

Usage1：press “high power” button(or “H.P” button) on remote controller for 5 times.
Usage2：press the emergency switch for over 5 seconds

Indoor or outdoor error codes will be displayed at the displaying area for indoor
temperature（“house” area）.

7-1-2 When compressor is stop for some trouble, the trouble code will display on
LED screen in outdoor unit. To resolve the trouble, please refer to the following:

Error code troubles Possible cause

5 Communication fault with IPM a) to check the cable between control board

and IPM

b) IPM fault

6 Suction sensor fault suction sensor may be short-circuited or

disconnected.

7 Discharge sensor fault discharge sensor may be short-circuited or

disconnected.

8 Top of the compressor sensor fault Top of the compressor sensor may be

short-circuited or disconnected.

9 Outdoor coil temperature sensor

fault

Coil temperature sensor may be
short-circuited or disconnected.

10 Defrosting sensor fault Defrosting sensor may be short-circuited or

disconnected.

11 Outdoor temperature sensor fault Outdoor temperature sensor may be

short-circuited or disconnected.
12 Liquid pipe sensor on valve A fault
13 Liquid pipe sensor on valve B fault
14 Liquid pipe sensor on valve C fault
15 Liquid pipe sensor on valve D fault

a) Liquid pipe sensor may be short-circuited

or open-circuited or disconnected.

b) The control board in outdoor unit is in

trouble

16 Gas pipe sensor on valve A fault
17 Gas pipe sensor on valve A fault
18 Gas pipe sensor on valve A fault
19 Gas pipe sensor on valve A fault

a) Gas pipe sensor may be short-circuited or

open-circuited or disconnected.

b) The control board in outdoor unit is in

trouble

20 Current sensor fault The outdoor PCB board in trouble.
21 Voltage sensor fault The outdoor PCB board in trouble.
23 Emergency shutdown for discharge c) check discharge sensor

Display indoor and outdoor error

77.. TTRROOUUBBLLEE SSHHOOOOTTIINNGG

39

temperature overheat. d) check whether the strainer before expand

valve is blocked.

e) Freon is leaking.
24 Emergency shutdown for current

overload.

a) Normal protection

b) The outdoor board in trouble.
25 Indoor unit A boot fault for freeze

protection

a) Expand valve A is damaged (leaking).

b) The coil temperature sensor in indoor unit

A is fault.

26 Indoor unit B boot fault for freeze

protection

a) Expand valve B is damaged (leaking).

b) The coil temperature sensor in indoor unit

B is fault.

27 Indoor unit C boot fault for freeze

protection

a) Expand valve C is damaged (leaking).

b) The coil temperature sensor in indoor unit

C is fault.

28 Indoor unit D boot fault for freeze

protection

a) Expand valve D is damaged (leaking).

b) The coil temperature sensor in indoor unit

D is fault.

30 Emergency shutdown for IPM failure a) Normal protec tion for compressor’s

overload.

b) IPM board is fault.
31 Emergency shutdown for cooling

overload.

a) Normal protection for coil temperature

sensor in outdoor is too high.
b) Coil temperature sensor in outdoor is fault.
c) Freon system may be abnormal if this fault

is occur frequently

32 Emergency shutdown for discharge

pressure is too high

a) The fan inlet of outdoor is blocked in

cooling mode.
b) The fan inlet of indoor unit is blocked in

heating mode.
c) Freon system may be blocked
d) The surroundings temperature of indoor or

outdoor unit is too high.

88.. CCHHEECCKKIINNGG CCOOMMPPOONNEENNTTSS

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8-1. Check refrigerant system

TEST SYSTEM FLOW

Conditions: ① Compressor is running.

② The air condition should be installed in good ventilation.
Tool: Pressure Gauge
Technique: ① see ② feel ③ test

SEE ----- Tube defrost.
FEEL ----- The difference between tube’s temperature.
TEST ----- Test pressure.

cooling run heating run

Lo Hi

Pressure
gauge

Lo Hi

Pressure
gauge

Lo Hi

Pressure
gauge

Lo Hi

Pressure
gauge

Lo Hi

Pressure
gauge

Lo Hi

Pressure
gauge

88.. CCHHEECCKKIINNGG CCOOMMPPOONNEENNTTSS

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Test system flow

Cooling mode

Test system

pressure.Does the low

pressure normal at

service part ?

The pressure on the
high side.

The pressure on the
low side.

Recharge refrigerant

after air purging with

the vacuum

pump.Does the low

pressure nomal over

again?

Air remaining at the
refrigerant system.

yes

The system wants

refrigerant.The service

people must be ration

refrigerant(about 100g/

per)in the cooling

mode fixed

frequency.Is the low

pressure rise ?

NO

Recharge refrigerant .

yes

The refrigerant system

blocked.Please check
the Capillary Tube( or

electronic expansion

valve)Is it blocked?

Unsolder the capillary tube
ASS'Y(or electronic expansion
valve).The capillary tube1 is blown
by N

2

.

Check check valve and 4­way valve.

If the pressure is

close to static

pressure?

NO

NO

4-way valve collude or
compressor exhaust very
ebb.

yes

NO

yes

Heating mode

Test system
pressure.Does the
high pressure normal
at service part ?

The pressure on the
high side.

The pressure on the
low side.

Recharge refrigerant
after air purging with
the vacuum
pump.Does the high
pressure normal over
again?

Air remaining at the
refrigerant system.

yes

The system wants
refrigerant.The service
people must be ration
refrigerant(about 100g/

per)in cooling mode fixed
frequency state .Is the

high pressure rise in
heating mode?

NO

Recharge refrigerant

yes

If the pressure is close
to static pressure?

4-way valve collude or
compressor exhaust every
ebb.

yes

Check heat exchanger and
4-way valve.

NO

The capillary tube
blocked.Unsolder the
capillary tube ASS'Y.The
capillary tube1 and capillary
tube2 is blown by N

2

.

NO

Remove the back
panel."see"the
capillary tube1 and
capillary tube2.Is it
defrosting?

yes

NO

88.. CCHHEECCKKIINNGG CCOOMMPPOONNEENNTTSS

42

8-2.Check parts unit

1. INDOOR FAN MOTOR

.MOTOR EXAMINE AND REPAIR

Circuit diagram：
1）YYW16-4-532：

BLACK

WHITE

M

A

Vcc

GND
Vout

BROWN

BLACK

YELLOW

WINDIN G

""
""

M The main wind in g
A The auxiliary winding

Capaci t or

Hot protector 100

℃

2）YYW28-4-2085

Test in resistance.

TOOL: Multimeter.
Test the resistance of the main winding. The indoor fan motor is fault if the resistance of
main winding 0(short circuit)or∞（open circuit）.

Test in voltage

TOOL: Multimeter.

Insert screwdriver into to rotate indoor fan motor slowly for 1 revolution or over, and measure

voltage “YELLOW” and “GND” on motor. The voltage repeat 0V DC and 5V DC.

Notes:

1) Please don’t hold motor by lead wires.

2) Please don’t plug IN/OUT the motor connecter while power ON.

3) Please don’t drop hurl or dump motor against hard material. Malfunction may not be observed at

early stage after such shock. But it may be found later, this type of mishandling void our
warranty.

2. OUTDOOR FAN MOTOR

MOTOR EXAMINE AND REPAIR
Circuit diagram

1) YDK70-6H-3:

BROWN

WHITE

BLACK

RED

BLACK

WHITE

88.. CCHHEECCKKIINNGG CCOOMMPPOONNEENNTTSS

43

BROWN

WHITE

A

M

WINDIN G

""
""

MThemainwinding
A The a uxiliary wi n di n g

Capacitor

Hot pr otecto r 130

℃

YELLOW

RED

BLACK

BLUE

Winding resistance ( at 20℃)
M: 78Ω A: 80Ω

2) YDK55-6I-8:

Hot Protector 130℃

Capacitor

"A"-The Auxiliary Winding

"M"-The Main Winding

TP

Winding

C

PINK

YELLOW

PURPLE

WHITE

BROWN

A3A2A1

M

Winding resistance ( at 20℃)
M: 185Ω A: 200Ω

3) YDK29-6I-22:

Hot Protector 130℃

Capacitor

"A"-The Auxiliary Winding

"M"-The Main Winding

TP

Winding

C

PINK

YELLOW

PURPLE

WHITE

BROWN

A3A2A1

M

Winding resistance ( at 20℃)
M: 283.5Ω A: 180Ω

Test in resistance.

TOOL: Multimeter.
Test the resistance of the main winding. The outdoor fan motor is fault if the resistance of
main winding 0(short circuit)or∞（open circuit）.

Notes:

1) Please don’t hold motor by lead wires.
2） Please don’t plug IN/OUT the motor connecter while power ON.
3） Please don’t drop hurl or dump motor against hard material. Malfunction may not be observed at

early stage after such shock. But it may be found later, this type of mishandling void our
warranty.

88.. CCHHEECCKKIINNGG CCOOMMPPOONNEENNTTSS

44

3. COMPRESSOR

Coil Resistance(JUS1015D5，at 25℃): 0.66Ω(U-V), 0.66Ω(V-W), 0.64Ω(W-U)
Coil Resistance(SNB130FGYM，at 20℃): 0.58Ω(U-V), 0.58Ω(V-W), 0.58Ω(W-U)
COMPRESSOR EXAMINE AND REPAIR

DC
INVERTER

CONTROLLER

&

RU

()

SV

()

TW

()

POWER

Test in resistance.

TOOL: Multimeter.
Test the resistance of the winding. The compressor is fault if the resistance of winding
0(short circuit)or∞（open circuit）

Familiar error:

1）Compressor motor lock.
2）Discharge pressure value approaches static pressure value .
3）Compressor motor winding abnormality.

Notes：

1）Don’t put a compressor on its side or turn over.

2) Please assembly the compressor in your air conditioner rapidly after removing the plugs.
Don’t place the comp. In air for along time.

3）Avoiding compressor running in reverse caused by connecting electrical wire incorrectly.
4）Warning! In case AC voltage is impressed to compressor, the compressor performance will

below because of its rotor magnetic force decreasing.

4. INDUCTANCE

Familiar error:

1）Sound abnormality
2）Insulation resistance disqualification.

5. STEP MOTOR

5

4

2

1

Test in resistance.

TOOL: Multimeter.
Test the resistance of winding. The stepper motor is fault if the resistance of winding 0(short

88.. CCHHEECCKKIINNGG CCOOMMPPOONNEENNTTSS

45

circuit)or∞（open circuit）.

6. FUSE

Checking continuity of fuse on PCB ASS’Y.

1) Remove the PCB ASS’Y from the electrical component box. Then pull out the fuse from the

PCB ASS’Y (Fig.1)

Fuse

PCB Ass'Y

Fig.1

2) Check for continuity by a multimeter as shown in Fig.2.

Fuse

Fig.2

7.CAPACITOR

1) Remove the lead wires from the capacitor terminals, and then place a probe on the

capacitor terminals as shown in Fig.3.

2) Observe the deflection of the pointer, setting the resistance measuring range of the

multimeter to the maximum value.

* The capacitor is “good” if the pointer bounces to a great extent and then gradually returns to

its original position.

* The range of deflection and deflection time differ according to the capacity of the capacitor.

Compressor motor
capacitor

Fan motor
capacitor

Multimeter

Fig.3

99.. PPAARRTTSS LLIISSTT

46

9-1. Indoor（AMS-07UR4SNZA3、AMS-09UR4SNZA3、AMS-12UR4SNZA3）

2

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 1-

17 2-

17 3

-

17 4

-

17

18

19

20

21

23

22

25

26

27

28

29

30

24

99.. PPAARRTTSS LLIISSTT

47

KEY NO. PART CODE PART NO. DESCRIPTION Q'TY NOTE

1

1302820

RZA-2-1503-031-02-0

ORNAMENT

1

2

1203298

RZA-2-1601-086-XX-0

FRONT PANEL

1

3

1203547

RZA-0-2307-006-XX-0

AIR FILTER ASS'Y

2

4

1203444

RZA-2-2258-062-XX-1

DISPLAY PANEL

1

5

1203267

RZA-2-1501-053-XX-0

GRILL

1

6

1203645

RZA-2-2369-067-XX-0

LEFT DOWN COVER

1

7

1203646

RZA-2-2369-068-XX-0

RIGHT DOWN COVER

1

8

1301490

RZA-0-0051-011-XX-0

EV APORA TOR ASS'Y

1

9

1203331

RZA-2-2219-043-XX-0

EVAPORATOR BRACKET

1

10

1203664

RZA-2-2514-113-XX-0

MOTOR COVER

1

11

1201217

RZA-0-5259-093-XX-0

INDOOR SENSOR ASS'Y

1

12

1205017

4-5259-332-03-0

COIL SENSOR ASS'Y

1

13

1203072

RZA-0-2510-106-XX-1

BEARING ASS'Y

1

14

1203663

RZA-2-2509-123-XX-0

CROSS-FLOW FAN ASS'Y

1

15

1200849

RZA-0-0000-116-XX-0

FAN MOTOR ASS'Y

1

16

1203287

RZA-2-1523-056-XX-0

FLAP

1

17

1203747

RZA-0-2201-129-01-0

BASE ASS'Y

1

17-1

1203271

RZA-2-2231-012-01-0

BASE

1

17-2

1203609

RZA-2-1519-037-01-0

BLADE

2

17-3

1203661

RZA-2-2478-112-XX-0

FLAP FIXED PLATE

2

17-4

1203627

RZA-2-2360-004-XX-0

INNER FLAP

1

18

1202992

RZA-0-1303-102-XX-0

DRAINAGE HOSE ASS'Y

1

19

1200855

RZA-0-0000-144-XX-0

STEPPER MOTOR

1

20

1200177

RZA-0-5152-062-XX-0

DISPLAY BOARD ASS'Y

1

21

1203590

RZA-2-2348-005-XX-0

DRAINAGE PLUG

1

22

1204031

RZA-2-2514-112-XX-0

BEARING COVER

1

23

1203639

RZA-2-2362-032-XX-0

FIXED BOARD

1

24

1203356

RZA-2-2230-114-XX-0

INSTALLATION PLATE

1

25

1380530

K36210260

REMOTE CONTROLLER

1

26

1203207

RZA-0-5315-023-XX-0

ELECTRICAL CONTROL BOX
COVER

1

1380560

K36412212

AMS-07UR4SNZA3
AMS-09UR4SNZA3

27

1380576

K36412213

PCB BOARD ASS'Y 1

AMS-12UR4SNZA3

28

1203964

RZA-2-5307-051-01-1

ELECTRICAL CONTROL BOX

1

29

1203961

RZA-2-5304-016-01-2

CLIP

1

30

1304376

4-2379-123-02-0

TERMINAL BOARD ASS'Y

1

99.. PPAARRTTSS LLIISST

T

48

9-4. Indoor （AMD-09UX4SJC/AMD-12UX4SJC/AMD-18UX4SJC）

1

2

3

6

7

10

12

14

13

16

15

17

18

23

25

24

22

21

26

27

28

29

35

4

5

9

8

11

19

20

32

30

31

33

34

36

37

99.. PPAARRTTSS LLIISST

T

49

KEY NO.

PART CODE PART NO. DESCRIPTION Q'TY NOTE

1 1360499 K33AD0058 OUTLET FOAM 1
2 1360552 K33130037 STRENGTHEN PLATE 1

1360605 K37320195 1

A

MD-09UX4SJC

A

MD-12UX4SJC

3

1379028 K37320219

EVAPORATOR

1

A

MD-18UX4SJC

4 1360786 K31710020 UPPER BOARD 1
5 1360942 K33450017 SPACER 1
6 1360670 K33AD0060 FOAM 1
7 1360677 K31220094 SIDE PANEL 1
8 1360763 K33170068 CONNECTING PLATE 1

9 1360484 K31120120 BASE PARTS 1
10 1360719 K33160040 MOUNTING PLATE ASSY 1
11 1360729 K331F0046 MOTOR BRACKET 1

1362138 K1B310196 1

A

MD-09UX4SJC

A

MD-12UX4SJC

12

1380538 K1B310248

MOTOR

1

A

MD-18UX4SJC

13 1360737 K34340017 CARD HOOK 2
14 1360739 K38210035 CENTRIFUGAL FAN 2
15 1360830 K31640038 AIR INLET PARTS 1
16 1354576 K31710019 UPPER BOARD 1
17 1360744 K38530022 FAN SNAIL SHELL 2
18 1360745 K38530023 FAN SNAIL SHELL 2
19 1360629 K31210037 SIDE PANEL PARTS 1
20 1360760 K33170067 CONNECTING PLATE 1
21 1360831 K338A0216 COVER 1
22 1361036 K31220095 SIDE PANEL 1
23 1360633 K33A40513 SPONGE 1
24 1202700 RZA-2-2295-001-01-0 CLAMP 1
25 1360771 K33540055 ELECTRICAL BOX 1
26 1361768 K33650021 SEPTA 1

1378275 K36412188 1

A

MD-09UX4SJC

1362146 K36412043 1

A

MD-12UX4SJC

27

1380540 K36412211

PCB BOARD

1

A

MD-18UX4SJC

28 1225513 141111 FAN MOTOR CAPACITOR 1
29 1360766 K33840029 ELEC JOINT BOX COVER 1
30 1313577 K13530006 TRANSFORMER 1
31 1359593 K36E10045 TERMINAL BOARD ASS'Y 1
32 1302207 RZA-2-2397-009-XX-0 RUBBER LID 2

99.. PPAARRTTSS LLIISST

T

50

33 1363753 DG19R1-21

TEMPERATURE SENSOR

1

1262330 KT21J6-30(D) 1

A

MD-09UX4SJC

1262396 KT21P5-20 1

A

MD-12UX4SJC

34

1262444 KT21P6-54

CONNECTING WIRE

1

A

MD-18UX4SJC

35 1360539 K33130036 STRENGTHEN PLATE 1
36 1381967 K33160044 MOUNTING BRACKET FOR PUMP 1

Selection

p

art

37 1382293 K1B410005 CONDENSATE PUMP 1

Selection

p

art

99.. PPAARRTTSS LLIISST

T

51

19

76

29

27

28

30

25

26

23

22

21

20

18

17

16

15

14

13

10

6

5

1

2

3

11

8

7

9

12

4

35

32

34

33

36

37

39

40

T-dis

38

Green

Blue

Black

Yellow

Yellow

73

74

Red

75

White

31

9-2. Outdoor （AMW3-24U4SKC、AMW4-28U4SKC）
9-2-1. Parts

1. Configuration parts

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52

2. System parts

49

50

48

51

52

53

54

55

57

60

65

59

72

41

45

42

43

46

47

61

44

68

70

58

71

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9-2-2. List

KEY NO. PART CODE PART NO. DESCRIPTION Q'TY NOTE

1 1202500 RZA-0-1321-003-XX-0 FAN GUARD ASSY 1

1202383 RZA-2-1112-004-XX-0 AMW3-24U4SKB

2

1312026 K31470022

FRONT PANEL 1

AMW4-28U4SKB
3 1202381 RZA-0-1112-005-XX-0 RIGHT PANEL ASSY 1
4 1202703 RZA-2-2303-001-XX-0 HANDLE 2
5 1202610 RZA-2-2228-002-XX-0 DRAINAGE HOSE 1

1353088 K31120103 1 AMW3-24U4SKB

6

1353043 K31120099

BASE ASSY

1 AMW4-28U4SKB
7 1328932 T-2-2502-033-XX-0 PROPELLER FAN 1
8 1301883 RZA-0-0000-057-XX-1 FAN MOTOR ASSY 1
9 1202442 RZA-0-2506-003-XX-1 FAN SUPPORTER ASSY 1

10 1202474 RZA-0-2309-012-XX-0 TOP COVER ASSY 1
11 1302261 RZA-4-2649-069-XX-0 REACTOR 1
12 1335623 K33660021 PARTITION SUPPORT PLA TE 1
13 1202234 RZA-2-2431-005-XX-0 RUBBER BLOCK 1
14 1204976 RZA-0-1111-001-XX-2 BACK GUARD ASSY 1
15 1301634 RZA-0-1115-001-XX-0 SIDE PANEL ASSY 1
16 8001840 RZA-2-2369-137-XX-0 VALVE COVER 1
17 8001549 RZA-2-5307-148-XX-0 ELECTRICAL BOX 1
18 1377855

K364A0012

FIL TER BOARD 1
19 1317464 K13410005 FILTER 1
20 1202889 RZA-0-2239-023-XX-0 FAN MOTOR CAPACITOR 1
21 1304655 RZA-4-2239-090-XX-0 AL ELECTROANALYSIS CAPACITOR 1
22 1202283 RZA-2-5301-002-XX-0 CAPACITORY CLIP 1
23 1354460 K36470112 DUMMY 1
25 1356881 K33AE0021 RADIATOR 1
26 8006825 K33530023 ELECTRICAL BOX 1

1354436 K36411951 1 AMW3-24U4SKC

27

1354439 K36411952

CONTROL BOARD

1 AMW4-28U4SKC
28 8001822 RZA-2-5307-147-XX-0 ELECTRICAL BOX 1
29 1356966 K33120022 MOUNT PLATE ASSY 1
30 1206639 RZA-2-9030-012-XX-0 CLIP 5**
31 1301881 4-2379-123-03-0 TERMINAL PANEL 4*
32 1200212 RZA-0-2216-002-XX-0 FUSE BRACKET 1
33 1200211 RZA-0-2349-007-XX-0 FUSE 1
34 1311469 K33AB0005 NOISE DEFENING COVER 1
35 1204958 RZA-2-5303-054-XX-0 SENSOR MOUNT 1

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36 1301839 4-5259-390-04-0 TEMPERATYRE SENSOR 1
37 1301832 4-5259-390-02-0 TEMPERATYRE SENSOR 1
38 1301833 4-5259-390-03-0 TEMPERATYRE SENSOR 1
39 1301841 4-5259-390-05-0 TEMPERATYRE SENSOR 1
40 1301842 4-5259-290-01-0 TEMPERATYRE SENSOR 1
41 1300307 RZA-0-4519-021-XX-0 ELECTRONIC EXPANSION VALVE 4*
42 1300208 RZA-2-4221-623-XX-0 1/4 TUBE 4*
43 1302908 RZA-0-4515-00B-42-0 1/4' SERVICE VALVE 4*
44 1203230 RZA-2-2475-017-XX-0 INSULATION CUSHION 4*
45 1300204 RZA-0-4206-982-XX-0 STAINER ASS’Y 4*
46 1302912 RZA-0-4518-00B-42-0 3/8 SERVICE VALVE 4*
47 1301297 RZA-2-4223-067-XX-0 3/8 TUBE 4*

1357788 K37410398 1 AMW3-24U4SKC

48

1357737 K37410397

5/8" TUBE ASS'Y

1 AMW4-28U4SKC
49 1203402 RZA-0-4505-008-XX-0 STRAINER 1

1300205 RZA-0-4114-001-XX-0 1 AMW3-24U4SKC

50

1307360 RZA-0-4207-075-XX-0

DISTUIBUTOR ASS'Y

AMW4-28U4SKC
51 1300179 RZA-0-4206-985-XX-0 DISTUIBUTOR ASS'Y 1
52 1300178 RZA-0-4206-977-XX-0 DISTUIBUTOR ASS'Y 1
53 1357728 K37460146 CONDENSER INLET ASS"Y 1
54 1300184 RZA-2-4118-001-XX-0 CONDENSER OUTLET TUBE 1
55 1258657 DG26D2-01(A) 4-WAY VA LVE 1
57 1357312 K37450053 SUCTION PIPE 1
58 1206624 RZA-0-9507-013-XX-0 PRESSURE SWITCH 1
59 1357614 K37440100 DISCHARGE PIPE 1
60 1205562 RZA-2-2475-001-XX-0 CUSHION RUBBER 1

1357284 K37330218 1 AMW3-24U4SKC

61

1357849 K37330219

CONDENSER ASS'Y

1 AMW4-28U4SKC
65 1358918 K37210164 COMPRESSOR ASS'Y 1
68 1300250 RZA-2-2476-176-XX-0 SOUND INSULATION PAD 1
70 1205547 RZA-2-2476-135-XX-0 SOUND INSULA TION PA D 1
71 1324503 K33AB0034 SOUND INSULATION PAD 1
72 1301887 RZA-4-2649-081-XX-0 EEV COIL 4*
73 8006239 K1C070004 INSULATION PAD 2

74*** 1312582 K1C510001 TEMPERATYRE SENSOR 1
75*** 1312591 K1C510002 TEMPERATYRE SENSOR 1

76 1304193 RZA-0-5306-027-XX-1 TERMINAL PANEL 1

Note:

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* For AMW3-24U4SKC, the quantity is 3 instead of 4
** For AMW3-24U4SKC, the quantity is 4 instead of 5
*** The item is only for AMW4-28U4SKC.

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9-3. Outdoor （AMW2-20U4SNC）

2

3

4

5

6

7

26

27

21

20

8

13

15

37

24

1

19

35

34

32

31

30

29

28

9

14

17

10

11

12

16

22

23

33

25

18

39

41

40

99.. PPAARRTTSS LLIISST

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KEY NO.

PART CODE PART NO. DESCRIPTION Q'TY NOTE

1 1202499 RZA-2-1321-002-XX-0 FAN GUARD 1
2 8004546

K31470066

FRONT PANEL 1

3 1324263

K38310006

PROPELLER FAN 1

4 1323471

K1B310044

FAN MOTOR ASSY 1

5 1333872

K331F0030

FAN MOTOR SUPPORTER 1
6 1327595 K37340102 CONDENSER ASSY 1
7 8004547

K31220010

BACK PANEL 1
8 1202470 RZA-0-5302-003-XX-0 SIDE COVER ASSY 1
9 1206659 RZA-2-2369-001-XX-1 VALVE COVER 1

10 1300307 RZA-0-4519-021-XX-0 ELECTRICAL EXPANSION VALVE 2

11

1349489 K37410374

4-WAY VALVE 1
12 1204863 RZA-0-4515-01B-41-0 1/4 VALVE ASSY 2
13 1204849 RZA-0-4518-02B-41-0 3/8 VALVE ASSY 2
14

1301842 4-5259-290-01-0

TEMPERATURE SENSOR 1

15

1341332 K37210142

COMPRESSOR ASSY 1
16 1301839 4-5259-390-04-0 TEMPERATURE SENSOR 1
17 1301842 4-5259-290-01-0 TEMPERATURE SENSOR 1
18

1312582 K1C510001

TEMPERATURE SENSOR 1
19 1204958 RZA-2-5303-054-XX-0 SENSOR MOUNT ASSY 1
20

1303873 RZA-2-2476-196-XX-0

NOISE DEFENING COVER(1) 1

21

1312877 K33AB0008

NOISE DEFENING COVER(2) 1

22

1334747 K33AB0045

NOISE DEFENING COVER(3) 1

23

1349535 K31120094

BASE ASSY 1
24 1204014 852-2-2228-132-02-0 DRAINAGE HOSE 1
25 1324726

K31720005

COVER 1

26 1205797

RZA-4-2649-066-XX-0

INDUCT ANCE ASSY 1

27 1324836

K33670006

PARTITION SUPPORT PLATE ASSY 1
28 1205734 RZA-0-2239-010-XX-0 Al ELECTROANALYSIS CAPACITOR 1
29 1304089 RZA-2-5304-092-XX-0 CLIP 3
30 1301881

4-2379-123-03-0

TERMINAL PANEL ASSY 2
31 1304193 RZA-0-5306-027-XX-1 TERMINAL PANEL ASSY 1
32

1340852 K33540024

ELECTRICAL BOX 1
33 1305257 RZA-0-5220-024-XX-0 FILTER 1
34 1327865 K36410802 CONTROL BOARD ASSY 1
35 1334466 K33AE0009 RADIATOR 1
37 1332616 K36470072 IPM ASSY 1
39

1202283 RZA-2-5301-002-XX-0

fixing clip 1

40

1324503 K33AB0034

NOISE DEFENING COVER(3) 1

41

1311770 K33AB0007

NOISE DEFENING COVER(3) 1

99.. PPAARRTTSS LLIISST

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9-3. Outdoor （AMW2-16U4SNC）

99.. PPAARRTTSS LLIISST

T

59

KEY NO.

PART CODE PART NO. DESCRIPTION Q'TY NOTE

1 1203960

852-2-1321-156-01-0 FAN GUARD 1

2 1203959

RZA-2-1112-024-XX-0 FRONT PANEL 1

3 1317536

K38310004

PROPELLOR FAN 1

4 1354934

K1B310187 FAN MOTOR ASSY 1

5 1204938

RZA-2-2354-023-XX-0 FAN SUPPORTER 1

6 1203635

RZA-2-2208-025-XX-0

STRENGTHEN PANEL 1

7 1353542

K37340257 CONDENSER ASSY 1

8 1203956

RZA-0-2309-040-XX-0 TOP COVER ASSY 1

9

1353370 K31220091 SIDE PANEL 1

10

1353367 K33810034 WIRING DISTRIBUTION COVER ASSY 1

11

1354044 K33880006 VALVE COVER 1

12 1301088

RZA-0-4509-015-XX-0 4-WAY VALVE 1

13 1332693

RZA-0-4515-00B-41-0 1/4 VALVE ASSY 1

14 1335015

RZA-0-4518-00B-41-0 3/8 VALVE ASSY 1

15 1315560

RZA-0-5303-052-XX-0 SENSOR BRACKET 1

16

1300307 RZA-0-4519-021-JT -0 ELECTRIC EXPANSION VALVE 2

17 1206640

RZA-4-2649-074-XX-0 ELECTROMAGNETIC COIL 1

18 1204048

RZA-0-5302-011-XX-1 ELECTRICAL BOX ASSY 1

19 1354179

K36411936 CONTROL BOARD 1

20 1301881

4-2379-123-03-0 TERMINAL PANEL 2

21

1206639 RZA-2-9030-012-XX-0 CLIP ASSY 3

22

1353381 K33170065 TERMINAL BOARD ASSY 1

23 1305257

RZA-0-5220-024-XX-0

EMI FILTER

1

24 1315782

K33530007 ELECTRICAL BOX 1

25 1335693

K36470069 DRIVER BOARD 1

26 1347749

K33AE0016 RADIATOR 1

27

1341476 K33670019

SEPERA TOR SUPPORT PLATE 1

28 1204046

RZA-0-5315-016-XX-0 COVER ASSY 1

29 1352970

K36E10043 TERMINAL PANEL 1

30 1205797

RZA-4-2649-066-XX-0 PFC REACTOR 1

31

1336461 K33AB0050 NOISE DEFENING COVER(1) 1

32

1369591 K33AB0069 NOISE DEFENING COVER(2) 1

33

1303873 RZA-2-2476-196-XX-0 NOISE DEFENING COVER(3) 1

34 1341332

K37210142 COMPRESSOR ASSY 1

35

1353326 K31120104 BASE ASSY 1

36 1204014

852-2-2228-132-02-0 DRAINAGE HOSE 1

37 1304655

RZA-4-2239-090-XX-0

CAPACITOR

1

38 1203577

RZA-2-1111-014-XX-0

BACK GUARD

1

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T

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39

1205548 RZA-2-2476-137-XX-0 NOISE DEFENING COVER(4)

1

40

1336465 K33AB0052 NOISE DEFENING COVER(5)

1

41

1301839 4-5259-390-04-0 TEMP SENSOR ASSY

1

42

1312582 K1C510001 TEMP SENSOR ASSY

1

43

1301842 4-5259-290-01-0 TEMP SENSOR ASSY

1

44

1301832 4-5259-390-02-0

TEMP SENSOR ASSY

1

45

1206641 RZA-4-2649-075-XX-0 ELECTROMAGNETIC COIL

1