Sinclair ROCKY SERIES ASH-09AIR, ROCKY SERIES ASH-12AIR, ROCKY SERIES YX1F Service Manual

SERVICE MANUAL

ASH-09AIR, ASH-12AIR

ROCKY SERIES

3

4

Service Manual

Table of Contents

Part

Ⅰ

: Technical Information

.......................................................................1

1. Summary

......................................................................................................................1

2. Specications

..........................................................................................................2

2.1 Specication Sheet ...........................................................................................................2

2.2 Operation Characteristic Curve ........................................................................................4

2.3 Capacity Variation Ratio According to Temperature .........................................................4

2.4 Cooling and Heating Data Sheet in Rated Frequency .....................................................5

2.5 Noise Curve ......................................................................................................................5

3. Outline Dimension Diagram

........................................................................6

3.1 Indoor Unit ........................................................................................................................6

3.2 Outdoor Unit .....................................................................................................................7

4. Refrigerant System Diagram

......................................................................8

5. Electrical Part

...........................................................................................................9

5.1 Wiring Diagram .................................................................................................................9

5.2 PCB Printed Diagram .....................................................................................................11

6. Function and Control

......................................................................................13

6.1 Remote Controller Introduction of YB1FA ......................................................................13

6.2 Brief Description of Modes and Functions ......................................................................16

Part

Ⅱ

: Installation and Maintenance

.................................................21

7. Notes for Installation and Maintenance

..........................................21

8. Installation

................................................................................................................23

8.1 Installation Dimension Diagram ......................................................................................23

8.2 Installation Parts-checking ............................................................................................25

8.3 Selection of Installation Location ....................................................................................25

8.4 Electric Connection Requirement ...................................................................................25

8.5 Installation of Indoor Unit ................................................................................................25

8.6 Installation of Outdoor Unit .............................................................................................28

8.7 Vacuum Pumping and Leak Detection ...........................................................................29

8.8 Check after Installation and Test Operation ...................................................................29

5

Service Manual

9. Maintenance

............................................................................................................30

9.1 Malfunction Analysis .......................................................................................................30

9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement ......................................34

9.3 How to Check Simply the Main Part ...............................................................................43

10. Exploded View and Parts List

..............................................................55

10.1 Indoor Unit ....................................................................................................................55

10.2 Outdoor Unit .................................................................................................................57

11. Removal Procedure

.......................................................................................61

11.1 Removal Procedure of Indoor Unit ...............................................................................61

11.2 Removal Procedure of Outdoor Unit ............................................................................66

Appendix:

........................................................................................................................75

Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................75

Appendix 2: Conguration of Connection Pipe .....................................................................75

Appendix 3: Pipe Expanding Method ...................................................................................76

Appendix 4: List of Resistance for Temperature Sensor ......................................................77

6

Service Manual

1. Summary

Part

Ⅰ

: Technical Information

Indoor Unit:

ASH-09AIR
ASH-12AIR

Outdoor Unit:

ASH-09AIR

ASH-12AIR

Remote Controller:

YX1F

ON/OFF MODE

FAN SWING

SLEEP TIMER

+

-

AUTO
COOL
DRY
FAN
HEAT

T-ON T-OFF

SWING
SLEEP
LOCK
SPEED

7

Service Manual

2. Specications

2.1 Specication Sheet

Model ASH-09AIR ASH-12AIR

Power

Supply

Rated Voltage V~ 220-240 220-240

Rated Frequency Hz 50 50

Phases 1 1

Power Supply Mode Outdoor Outdoor

Cooling Capacity(Min~Max) W 2500(600~2800) 3200(600~3500)

Heating Capacity(Min~Max) W 2750(600~3000) 3400(600~3800)

Cooling Power Input(Min~Max) W 800(120~1300) 1020(120~1400)

Heating Power Input(Min~Max) W 780(120~1400) 995(120~1500)

Cooling Current Input A 3.6 4.5

Heating Current Input A 3.5 4.4

Rated Input W 1400 1500

Rated Current A 6.7 7.2

Air Flow Volume(SH/H/M/L/SL) m3/h 500/400/300/250/- 500/400/300/250/-

Dehumidifying Volume L/h 0.8 1.4

EER W/W 3.13 3.14

COP W/W 3.53 3.42

SEER 5.8 6.1

HSPF / /

Application Area m

2

12-18 15-22

Indoor

Unit

Fan Type Cross-ow Cross-ow

Fan Diameter Length(DXL) mm Φ85X596 Φ85X596

Cooling Speed(SH/H/M/L/SL) r/min 1320/1100/920/730/- 1320/1100/920/730/-

Heating Speed(SH/H/M/L/SL) r/min 1350/1200/1100/1000/- 1350/1200/1100/1000/-

Fan Motor Power Output W 10 10

Fan Motor RLA A 0.15 0.15

Fan Motor Capacitor μF 1 1

Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube

Evaporator Pipe Diameter mm Φ7 Φ7

Evaporator Row-n Gap mm 2-1.4 2-1.4

Evaporator Coil Length(LXDXW) mm 592X25.4X266.7 592X25.4X266.7

Swing Motor Model MP24AA MP24AA

Swing Motor Power Output W 1.5 1.5

Fuse Current A 3.15 3.15

Sound Pressure Level(SH/H/M/L/SL) dB (A) 38/34/31/28/- 39/34/31/28/-

Sound Power Level(SH/H/M/L/SL) dB (A) 50/46/43/40/- 53/47/43/40/-

Dimension(WXHXD) mm 790X265X174 790X265X174

Dimension of Carton Box(LXWXH) mm 870X248X355 870X248X355

Dimension of Package(LXWXH) mm 873X251X370 873X251X370

Net Weight kg 9 9

Gross Weight kg 10.5 10.5

8

Service Manual

Outdoor

Unit

Model of Outdoor Unit ASH-09AIR ASH-12AIR

Compressor Manufacturer/Trademark

ZHUHAI LANDA COMPRESSOR

CO., LTD

ZHUHAI GREE DAIKIN DEVICE

CO., LTD

Compressor Model QXA-A091zE190A 1GDY23AXD

Compressor Oil 68EP FVC50K

Compressor Type Rotary Rotary

L.R.A. A 16.5 16.5

Compressor RLA A 4.5 4

Compressor Power Input W 942 845

Overload Protector 1NT11L-6233 1GDY23AXD-05

Throttling Method Capillary Capillary

Operation temp

o

C 16~30 16~30

Ambient temp (cooling)

o

C -15~48 -15~48

Ambient temp (heating)

o

C -15~24 -15~24

Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube

Pipe Diameter mm Φ7 Φ7.94

Rows-n Gap mm 1-1.4 1-1.4

Coil Length (LXDXW) mm 692X19.05X506 731X19.05X550

Fan Motor Speed rpm 900/600 900/600

Output of Fan Motor W 30 30

Fan Motor RLA A 0.4 0.4

Fan Motor Capacitor μF / /

Air Flow Volume of Outdoor Unit m3/h 1600 2200

Fan Type Axial-ow Axial-ow

Fan Diameter mm Φ400 Φ438

Defrosting Method Automatic Defrosting Automatic Defrosting

Climate Type T1 T1

Isolation I I

Moisture Protection IP24 IP24
Permissible Excessive Operating

Pressure for the Discharge Side

MPa 4.3 4.3

Permissible Excessive Operating

Pressure for the Suction Side

MPa 2.5 2.5

Sound Pressure Level (H/M/L) dB (A) 50/-/- 51/-/-

Sound Power Level (H/M/L) dB (A) 60/-/- 63/-/-

Dimension (WXHXD) mm 776X540X320 842X596X320

Dimension of Carton Box (LXWXH) mm 820X355X580 878X360X630

Dimension of Package (LXWXH) mm 823X358X595 881X363X645

Net Weight kg 27 31
Gross Weight kg 29.5 34
Refrigerant R410A R410A
Refrigerant Charge kg 0.7 0.85

Connection

Pipe

Length m 5 5
Gas Additional Charge g/m 20 20
Outer Diameter Liquid Pipe mm Φ6 Φ6
Outer Diameter Gas Pipe mm Φ9.52 Φ12
Max Distance Height m 10 10
Max Distance Length m 15 20
Note: The connection pipe applies metric diameter.

The above data is subject to change without notice; please refer to the nameplate of the unit.

9

Service Manual

2.2 Operation Characteristic Curve

2.3 Capacity Variation Ratio According to Temperature

Cooling Heating

0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100 120110

80

11

10

9
8
7
6
5
4
3
2
1
0

11

10

9
8
7
6
5
4
3
2
1
0

220V

230V

240V

220V

230V

240V

Current (A)

Current (A)

Conditions
Indoor:DB27°C/WB19°C
Outdoor:DB35°C/WB24°C
Indoor air flow:Super High
Pipe length:5m

Conditions
Indoor:DB20°C/WB15°C
Outdoor:DB7°C/WB6°C
Indoor air flow:Super High
Pipe length:5m

Compressor speed (rps) Compressor speed (rps)

Cooling Heating

32 33 34 35 36 37 38 39 43

40 41 42

100

105

95
90
85
80
75
70
65
60
55
50

Conditions
Indoor:DB27°C/WB19°C
Indoor air flow:Super High
Pipe length:5m

Outdoor temp.(°C)

Capacity ratio (%)

–15 –10 –5

110

100

90
80
70
60
50
40

0 5 7 10

Conditions
Indoor:DB20°C/WB15°C
Indoor air flow:Super High
Pipe length:5m

Outdoor temp.(°C)

Capacity ratio (%)

10

Service Manual

2.4 Cooling and Heating Data Sheet in Rated Frequency

Instruction:

T1: Inlet and outlet pipe temperature of evaporator
T2: Inlet and outlet pipe temperature of condenser
P: Pressure at the side of big valve
Connection pipe length: 5 m.

Cooling:

Heating:

Rated cooling

condition(oC) (DB/WB)

Model

Pressure of gas pipe

connecting indoor

and outdoor unit

Inlet and outlet pipe
temperature of heat

exchanger

Fan speed

of indoor

unit

Fan speed

of outdoor

unit

Compressor

revolution (rps)

Indoor Outdoor P (MPa) T1 (oC) T2 (oC)

27/19 35/24 09/12K 0.8 ~ 1.1 11 to 14 38 to 41 Super High High 60

Rated heating

condition(oC) (DB/WB)

Model

Pressure of gas pipe

connecting indoor and

outdoor unit

Inlet and outlet pipe
temperature of heat

exchanger

Fan speed

of indoor

unit

Fan speed
of outdoor

unit

Compressor

revolution (rps)

Indoor Outdoor P (MPa) T1 (°C) T2 (°C)

20/15 7/6 09/12K 2.8 ~ 3.2 38 to 41 2 to 5 Super High High 66

2.5 Noise Curve

Indoor side noise

Outdoor side noise

Indoor fan motor rotating speed

Compressor frequency/Hz

Low Middle High Supper High

Noise/dB(A)

Noise/dB(A)

70

60

40

30

35

25

50

40

30

0 20 40 60 80 100

20

09K 12K

11

Service Manual

3. Outline Dimension Diagram

3.1 Indoor Unit

Unit:mm

174

790

71

40

76

40

605

37

148

Φ55

Φ55

265

265

12

Service Manual

714 257

776

510

540

286

540

297

842

320

596

257

763

3.2 Outdoor Unit

(2) ASH-12AIR

(1) ASH-09AIR

Unit:mm

Unit:mm

13

Service Manual

4. Refrigerant System Diagram

Indoor unit

Outdoor unit

COOLING

HEATING

4-Way valve

Discharge

Suction

Heat
exchanger
(evaporator)

Heat
exchanger
(condenser)

Valve

Valve

Liquid pipe
side

Gas pipe
side

Strainer Capillary Strainer

Accumlator

Compressor

Connection pipe specication:
Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm)09K
Gas pipe:1/2" (12mm)12K

Cooling and heating model

14

Service Manual

5. Electrical Part

5.1 Wiring Diagram

● Indoor Unit

●Instruction

Symbol Symbol Color Symbol Symbol Color Symbol Name

WH White GN Green CAP Jumper cap

YE Yellow BN Brown COMP Compressor

RD Red BU Blue Grounding wire

YEGN Yellow/Green BK Black / /

VT Violet OG Orange / /

Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.

SWING-UD

M2

AC-L

BN

BK

BU

EVAPORATOR

CAP

PE

YEGN

JUMP

DISP2

SWING

N

COM-OUT

BK
BN

3

XT

2

N(1)

BU

YEGN

DISP1

DISPLAY BOARD

TERMINAL

RECEIVER AND

MOTOR

BLOCK

M1

PGPGF

FAN

MOTOR

OUTDOOR UNIT

θ

RT1

RT2

TUBE TEMP.

SENSOR

T-SENSOR

θ

SENSOR

ROOM TEMP.

AP2

PRINTED CIRCUIT BOARD

AP1

CONNECTING

CABLE

15

Service Manual

These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit.

● Outdoor Unit

BN

BK

BU

L4

L1

L4

L3

L3

RING

MAGNETIC

PE

L3

BU

V

RD

YE

LX1-1

LX1-2

TERMINAL

N

L

N(1)

2
3

L

N

CN2

OFAN

W

V

U

AP:Main Board

N

AC-L

COMU

PE

L2

L2

REACTOR

L

BU

BN

TEMP.

SENSOR

TEMP.

SENSOR

TEMP.

RT3

RT2

RT1

SENSOR

θ

4YV

4-WAY

4WAY

MAGNETIC

RING

(20k)

(15k)

(50k)

MAGNETIC

RING

X1

MID.ISOLATION
SHEET

YEGN

PE

PE

YEGN

YEGN

YEGN

YEGN(GN)

VALVE

OUTTUBE

OUTROOM

EXHAUST

BLOCK

BU
BK

BN

BU(WH)
BN(BK)

VT

VT

the risk of electric shock!

Please don't touch any
terminal when the machine

is running ,stopping or has

been powered off for less
than 30 minutes to prevent

WARNING

BU

YE

RD

θ

θ

YEGN

RD

W

U

COMP.

COMP

WIRE

XT

POWER

FAN

M

PE

PE

OVC-COMP

NOTE:

Motor

only applies to the

iron shell motor.

ground

ELECTRICAL
BOX

YEGN

MOTOR

INDOOR UNIT

16

Service Manual

5.2 PCB Printed Diagram

No. Name

1 Live wire interface
2 Fuse
3 Fan capacitor
4 Neutral wire interface
5 Fan motor interface of PG
6 Communication interface
7 Auto button
8 up&down swing interface

9

Interface of PG feedback

interface

10 Jumper cap

11

Interface of temperature

sensor
12 display interface
13 High Frequency Transformer

● Top view

● Bottom view

Indoor Unit

1

2

3

4 5 6 7 8

9

10

11

12

13

17

Service Manual

Outdoor Unit

● Top view

● Bottom view

1

2

3 4 11

5

6

7

8

9

10

No. Name

1 Reactor wiring terminal
2 Compressor wiring terminal

3

Terminal of outdoor unit temperature
sensor

4

Compressor overload protection
terminal

5

Terminal with indoor unit communication
wire

6

Terminal of power supply live wire

terminal
7 Terminal of power supply neutral wire
8 Interface of earthing wire
9 Terminal of outdoor fan

10 Interface of 4-way valve
11 Terminal of electronic expansion valve

18

Service Manual

6. Function and Control

6.1 Remote Controller Introduction

AUTO
COOL
DRY
FAN
HEAT

T-ON T-OFF

SWING
SLEEP
LOCK

SPEED

+

_

ON/OFF

FAN SWING

SLEEP

TIMER

MODE

ON/OFF button

MODE button

+/- botton

FAN button

SWING button

SLEEP button

TIMER button

Icon Display on Remote Controller

Operation introduction of remote controller

For auto operation

Timer on Timer off

Sending signal

For air swing
For sleeping
For locking
For setting fan speed

Set temperature

Set time

For cooling

For drying

For fan only

For heating

AUTO
COOL
DRY
FAN
HEAT

T-ON T-OFF

SWING
SLEEP

LOCK
SPEED

Buttons on Remote Controller

Note:

When power is connected(stand by condition), you can operate the air conditioner through the remote controller.
When unit is on, each time you press the button on remote controller, the sending signal icon on the display of remote controller

will blink once. If the air conditioner gives out a beep sound, it means the signal has been sent.

When unit is off, set temperature will be displayed on the remote controller(If the light of indoor unit display is turned on, the

corresponding icon will be displayed); When unit is on, it will display the icon of the on-going function.

1. ON/OFF Button

Press this button to turn unit on/off.

2. MODE Button

Pressing this button once can select your required mode circularly as below(the corresponding icon

will be lit up after the mode is

selected):

AUTO COOL DRY FAN HEAT

19

Service Manual

When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Set temperature can't be

adjusted and won't be displayed either. Press FAN button to adjust fan speed. (This function is not available in this air conditioner.)

When selecting cool mode, air conditioner will operate under cool mode. Then press + or -- button to adjust set temperature. Press

FAN button to adjust fan speed.

When selecting dry mode, air conditioner will operate at low fan speed under dry mode. In dry mode, fan speed can't be adjusted.
When selecting fan mode, air conditioner will operate in fan mode only. Then press FAN button to adjust fan speed.
When selecting heat mode, air conditioner will operate under heat mode. Then press + or -- button to adjust set temperature. Press

FAN button to adjust fan speed.

3. +/- button

Pressing + or - button once will increase or decrease set temperature by 1 °F(°C). Hold + or -- button for 2s, set temperature on

remote controller will change quickly. Release the button after your required set temperature is reached.

When setting Timer On, Timer Off or Clock, press + or -- button to adjust the time (See TIMER Button for setting details).

4. FAN Button

Pressing this button can select fan speed circularly as: AUTO, SPEED 1(

), SPEED 2( ), SPEED 3( ), SPEED 4( ) (unavailable

in this air conditioner. Speed 4 is the same with speed 3).

Note:

Under Auto mode, air conditioner will select proper fan speed automatically according to ex-factory setting.
Fan speed can't be adjusted under Dry mode.

5. SWING Button

Press this button to turn on up&down air swing.

6. SLEEP Button

Under Cool, Heat, Dry mode, press this button to turn on Sleep function. Press this button to cancel Sleep function. Under Fan and
Auto mode, this function is unavailable.

Simple operationfi rst

1.After putting through power “

” button on remote controller to turn on the air conditioner.

2.Press “

” button to select your required operation mode: AUTO, COOL, DRY, FAN.

3.Press “+” or “-” button to set your required temperature.(temperature can’t adjusted under AUTO mode)

4.Press “

” button to select your required fan speed: auto, fi rst notch, second notch, third notch, fourth notch (fourthnotch is same

as third notch for this air conditioner.)

SPEED 2 (equals to medium fan speed)SPEED 1 (equals to low fan speed)

SPEED 3 (equals to high fan speed) SPEED 4

AUTO

7. TIMER Button

When unit is on, press this button to set Timer Off. T-OFF and H icon will be blinking. Within 5s, press + or - button to adjust the

When unit is off, press this button to set Timer On. T-ON and H icon will be blinking. Within 5s, press + or - button to adjust the

time for Timer On. Pressing + or - button once will increase or decrease the time by 0.5h. Hold + or - button for 2s, time will change
quickly. Release the button after your required set time is reached. Then press TIMER button to confirm it. T-ON and H icon will stop
blinking.

Cancel Timer On/Off: If Timer function is set up, press TIMER button once to review the remaining time. Within 5s, press TIMER

Note:

Range of time setting is: 0.5~24h

button again to cancel this function.

The interval between two motions can't exceed 5s, otherwise the remote controller will exit setting status.

time for Timer Off. Pressing + or - button once will increase or decrease the time by 0.5h. Hold + or - button for 2s, time will change
quickly. Release the button after your required set time is reached. Then press TIMER button to confirm it. T-OFF and H icon will
stop blinking.

20

Service Manual

1. Press the back side of remote controller on the spot marked with , and then
push out the cover of battery box along the arrow direction.

2. Replace two No.7 (AAA 1.5V) dry batteries and make sure the positions of + and -­polar are correct.

3. Reinstall the cover of battery box.

Note:

During operation, point the signal sender of the remote controller at the receiving

window of the indoor unit;

The distance between signal sender and receiving window should be within 8m.

There should be no obstacle between them.

Signal may be interfered easily in the room where there is fl uorescent lamp
or wireless telephone; Remote controller should be close to indoor unit during
operation.

Replace new batteries of the same model when replacement is required.

If you don't use remote controller for a long time, please take out the batteries.

If the display on remote controller is fuzzy or if there's no display, please replace
batteries.

battery

cover of battery box

remove

reinstall

Replacement of Batteries in Remote Controller

21

Service Manual

6.2 Brief Description of Modes and Functions

1. Temperature Parameters

◆

Indoor preset temperature (Tpreset)

◆

Indoor ambient temperature (Tamb.)

2. Basic Functions

Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory function

is available, for the rst energization, if the compressor is at stop before de-energization, the compressor will be started without a

3-minute lag; if the compressor is in operation before de-energization, the compressor will be started with a 3-minute lag; and once

started, the compressor will not be stopped within 6 minutes regardless of changes in room temperature;

(1) Cooling Mode

①

Working conditions and process of cooling

Cooling conditions and process(09k)

a. When Tamb.≥Tpreset the unit starts cooling. In this case, the IDU fan motor, ODU fan motor and compressor run, and the IDU fan

motor runs at set speed;

b. When Tamb.=Tpreset-3℃, the compressor continuously operates below the frequency of 15Hz (not including 15Hz) for 15mins. If

Tamb.=Tset-3℃ still keeps the same, the compressor stops operation;

c. When Tamb.≤Tpreset-4℃, the compressor stops operation; ODU fan motor stops operation with a delay of 30s and IDU fan motor

operates at set speed;

d. When Tpreset-2℃＜Tamb.＜Tset, the unit will maintain its previous running status.

Cooling conditions and process(12k)

a.When Tamb.+Tindoor supplementary≥Tpreset, the unit starts cooling. In this case, the IDU fan motor, ODU fan motor and

compressor run, and the IDU fan motor runs at set speed;

b. When Tamb.+Tindoor supplementary≤Tpreset-2℃, the compressor stops operation; ODU fan motor stops operation with a delay

of 30s and IDU fan motor operates at set speed;

c.When Tpreset-2

℃＜

Tindoor amb.+Tindoor supplementary＜Tpreset, the unit will maintain its previous running status.

Under this mode, the four-way valve will be de-energized and temperature can be set within a range from 16 to 30oC.

If the compressor is shut down for some reason, the indoor fan and the swing device will operate at original state.

②

Protection

◆

Antifreeze protection

Under cooling and dehumidifying mode, 6 minutes after the compressor is started:

If T evap≤2oC, the compressor will operate at reduced frequency.

If T evap≤-1oCis detected for durative 3 minutes, the compressor will stop, and after 30 seconds, the outdoor fan will stop; and under

cooling mode, the indoor fan and the swing motor will remain at the original state.

If T evap. ≥10oCand the compressor has remained at OFF for at least 3 minutes, the compressor will resume its original operation

state.

◆

Total current up and frequency down protection

If I

total

≤6, frequency rise will be allowed; if I

total

≥7, frequency rise will not be allowed; if I

total

≥8, the compressor will run at reduced

frequency; and if I

total

≥9, the compressor will stop and the outdoor fan will stop with a time lag of 30s.

(2) Dehumidifying Mode

①

Working conditions and process of dehumidifying

If Tamb>Tpreset, the unit will enter cooling and dehumidifying mode, in which case the compressor and the outdoor fan will operate

and the indoor fan will run at low speed.

If Tpreset -2oC≤Tamb≤Tpreset, the compressor remains at its original operation state.

If Tamb.< Tpreset -2oC, the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will operate at

low speed.

②

Protection

Protection is the same as that under the cooling mode.

(3) Heating Mode

22

Service Manual

①

Working conditions and process of heating

If Tamb.≤Tpreset +2oC, the unit enters heating mode, in which case the four-way valve, the compressor and the outdoor fan will

operate simultaneously, and the indoor fan will run at preset speed in the condition of preset cold air prevention.

If T amb.≥Tpreset +5oC, the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will stop after

60-second blow at low speed

If Tpreset +2oC<T amb.< Tpreset +5oC, the unit will maintain its original operating status.

Under this mode, the four-way valve is energized and temperature can be set within a range of 16 - 30oC. The operating symbol, the

heating symbol and preset temperature are revealed on the display.

②

Condition and process of defrost

When duration of successive heating operation is more than 45 minutes, or accumulated heating time more than 90 minutes, and

one of the following conditions is reached, the unit will enter the defrost mode after 3 minutes.

(1)T outdoor ambient＞5oC, T outdoor tube≤-2oC;

(2) -2oC≤T outdoor ambient＜5oC, T outdoor tube≤-6oC;

(3) -5oC≤T outdoor ambient＜-2oC, T outdoor tube≤-8oC;

(4)-10oC≤Toutdoor ambient＜-5oC, Toutdoortube-T compensatory≤(T outdoor ambient-3oC)

(5)T outdoor ambient＜-10oC, T outdoortube-T compensatory≤(T outdoor ambient-3oC)

(after energizing, T compensatory=0oC during the rst defrosting; if it is not the rst defrosting, T compensatory is conrmed by T

outdoortube of quitting last defrosting:
a. whenT outdoor tube＞2oC, T compensatory=0oC; b. whenT outdoor tube≤2oC, T compensatory=3oC)

At that time, the indoor fan stops and the compressor stops, and after 30 seconds the outer fan will stop, and then after 30 seconds,

the four-way valve will stop. After 30 seconds, the compressor is initiated for raising the frequency to defrost frequency.

When the compressor has operated under defrost mode for 7.5 minutes, or T outdoor ambient≥10oC, the compressor will be

converted to 46Hz operation. After 30 seconds, the compressor will stop. And after another 30 seconds, the four-way valve will

be opened, and after 60 seconds, the compressor and the outer fan will be started, the indoor fan will run under preset cold air

prevention conditions, and H1 will be displayed at temperature display area on the display panel. Defrost frequency is 85Hz.

③

Protection

◆

Cold air prevention

The unit is started under heating mode (the compressor is ON):

①

In the case of T indoor amb. <24oC: if T tube≤40oC and the indoor fan is at stop state, the indoor fan will begin to run at low speed

with a time lag of 2 minutes. Within 2 minutes, if T tube>40oC, the indoor fan also will run at low speed; and after 1-minute operation

at low speed, the indoor fan will be converted to operation at preset speed. Within 1-minute low speed operation or 2-minute non-

operation, if T tube>42oC, the fan will run at present speed.

②

In the case of T indoor amb. ≥24oC: if T tube≤42oC, the indoor fan will run at low speed, and after one minute, the indoor fan will be

converted to preset speed. Within one-minute low speed operation, if T tube>42oC, the indoor fan will be converted to preset speed.

Note: T indoor amb. indicated in

①

and

②

refers to, under initially heating mode, the indoor ambient temperature before the

command to start the compressor is performed according to the program, or after the unit is withdrawn from defrost, the indoor

ambient temperature before the defrost symbol is cleared.

◆

Total current up and frequency down protection

If the total current I

total

≤6, frequency rise will be allowed; if I

total

≥7, frequency rise will not be allowed; if I

total

≥8, the compressor will run

at reduced frequency; and if I

total

≥9, the compressor will stop and the outdoor fan will stop with a time lag of 30s.

(4) Fan Mode

Under the mode, the indoor fan will run at preset speed and the compressor, the outdoor fan, the four-way valve and the electric

heater will stop.

Under the mode, temperature can be set within a range of 16 - 30oC .

(5) AUTO Mode

①

Working conditions and process of AUTO mode

a. When T ambient ≥26oC, the unit will operate in Cool mode. The set temperature is 25oC.

b. When T ambient ≤22oC, the heat pump unit will operate in Heat mode., set temperature be 20oC; the cooling only unit will operate

in Fan mode, set temperature be 25oC.

c. When 23oC≤T ambient ≤25oC, the unit will operate in the previous state. If it is energized for the rst time, it will operate in Fan

mode.

d. Under auto mode, if its cooling mode, operation frequency is same as that under cooling mode; if its heating mode, operation

frequency is same as that under heating mode.

23

Service Manual

②

Protection

a. In cooling operation, protection is the same as that under the cooling mode;

b. In heating operation, protection is the same as that under the heating mode;

c. When ambient temperature changes, operation mode will be converted preferentially. Once started, the compressor will

remain unchanged for at least 6 minutes.

(6) Common Protection Functions and Fault Display under COOL, HEAT, DRY and AUTO Modes

①

Overload protection

T tube: measured temperature of outdoor heat exchanger under cooling mode; and measured temperature of indoor heat exchanger

under heating mode.

1) Cooling overload

a.If T tube≤52oC, the unit will return to its original operation state.

b.If T tube≥55oC, frequency rise is not allowed.

c.If T tube≥58oC, the compressor will run at reduced frequency.

d.If T tube≥62oC, the compressor will stop and the indoor fan will run at preset speed.

2) Heating overload

a.If T tube≤50oC, the unit will return to its original operation state.

b.If T tube≥53oC, frequency rise is not allowed.

c.If T tube≥56oC, the compressor will run at reduced frequency.

d.If T tube≥60oC, the compressor will stop and the indoor fan will blow residue heat and then stop.

②

Exhaust temperature protection of compressor

a.If exhaust temperature ≥98oC, frequency is not allowed to rise.

b.If exhaust temperature ≥103oC, the compressor will run at reduced frequency.

c.If exhaust temperature ≥110oC, the compressor will stop.

d.If exhaust temperature ≤90oCand the compressor has stayed at stop for at least 3 minutes, the compressor will resume its operation.

③

Communication fault

If the unit fails to receive correct signals for durative 3 minutes, communication fault can be justied and the whole system will stop.

④

Module protection

Under module protection mode, the compressor will stop. When the compressor remains at stop for at least 3 minutes, the compressor will

resume its operation. If module protection occurs six times in succession, the compressor will not be started again.

⑤

Overload protection

If temperature sensed by the overload sensor is over 115oC, the compressor will stop and the outdoor fan will stop with a time lag of 30

seconds. If temperature is below 95oC, the overload protection will be relievedoC.

⑥

DC bus voltage protection

If voltage on the DC bus is below 150V or over 420V, the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds.

When voltage on the DC bus returns to its normal value and the compressor has stayed at stop for at least 3 minutes, the compressor will

resume its operation.

⑦

Faults of temperature sensors

Designation of sensors Faults

Indoor ambient temperature

The sensor is detected to be open-circuited or short-circuited for successive 30
seconds

Indoor tube temperature

The sensor is detected to be open-circuited or short-circuited for successive 30
seconds

Outdoor ambient temperature

The sensor is detected to be open-circuited or short-circuited for successive 30
seconds

Outdoor tube temperature

The sensor is detected to be open-circuited or short-circuited for successive 30
seconds, and no detection is performed within 10 minutes after defrost begins.

Exhaust

After the compressor has operated for 3 minutes, the sensor is detected to be
open-circuited or short-circuited for successive 30 seconds.

Overload

After the compressor has operated for 3 minutes, the sensor is detected to be
open-circuited or short-circuited for successive 30 seconds.

Zero-crossing inspection circuit
malfunction of the IDU fan motor

Zero-crossing signal is not detected for continuously 3s; Or the interval between
the zero-crossing signals in 3s＞25ms (power frequency: 50Hz)

24

Service Manual

Indoor Units

(1) ON/OFF

Press the remote button ON/OFF: the on-off state will be changed once each time you press the button.

(2) Mode Selection

Press the remote button MODE, then select and show in the following ways: AUTO, COOL, DRY, FAN, HEAT, AUTO.

(3) Temperature Setting Option Button

Each time you press the remote button TEMP+ or TEMP-, the setting temperature will be up or down by 1oC. Regulating

Range: 16~30oC, the button is useless under the AUTO mode.

(4) Time Switch

You should start and stop the machine according to the setting time by remote control.

(5) SLEEP State Control

a. When the air conditioner is under the mode of COOL, DRY, and the SLEEP mode has been set well, after the SLEEP state keeps about

1 hour, the pre-setting T will raise 1oC, and it will raise 1oC again after 2 hours, so it raise 2oC in 2 hours, then it will run on at the setting

temperature and wind speed.

b. When the air conditioner is under the mode of HEAT, and the Timer has been set well, after the SLEEP state keeps about 1 hour, the pre-

setting T will reduce 1oC, and it will reduce 1oC again after 2 hours, so it reduce 2oC in 2 hours, then it will run on at the setting temperature

and wind speed.

c. The setting temperature keeps the same under the FAN mode and AUTO mode.

(6) Buzzer Control

a. Cooling only model:The buzzer will send a “Di Di” sound when the air conditioner is powered up or received the information sent by the

remote control or there is a button input, the single tube cooler doesnt receive the remote control ON signal under the mode of heating

mode.

b. Cooling and heating model:The buzzer will send a “Di” sound when the air conditioner is powered up or received the information sent by

the remote control or there is a button input, the single tube cooler doesnt receive the remote control ON signal under the mode of heating

mode.

(7) Auto button

If the controller is on, it will stop by pressing the button, and if the controller is off, it will be automatic running state by pressing the button,

swing on and light on, and the main unit will run based on the remote control if there is remote control order.

(8) Up-and-Down Swinging Control

When power on, the up-and-down motor will firstly move the air deflector to counter-clockwise, close the air outlet. After starting the

machine, if you dont set the swinging function, heating mode and auto-heating mode, the up-and-down air deflector will move to D

clockwise; under other modes, the up-and-down air deector will move to L1. If you set the swinging function when you start the

machine, then the wind blade will swing between L and D. The air deector has 7 swinging states: Location L, Location A, Location B,

Location C, Location D, Location L to Location D, stop at any location between L-D (the included angle between L~D is the same). The

air deector will be closed at 0 Location, and the swinging is effectual only on condition that setting the swinging order and the inner fan is

running. The indoor fan and compressor may get the power when air deector is on the default location.

(9) Display

①

Operation pattern and mode pattern display

All the display patterns will display for a time when the power on, the operation indication pattern will display in red under standby status.

When the machine is start by remote control, the indication pattern will light and display the current operation mode (the mode light includes:

L1
A1
B1
C1
D1

L
A
B
C
D

Heating angle

Cooling angle

O(0°)

O(0°)

25

Service Manual

Cooling, heating and dehumidify). If you close the light key, all the display patterns will close.

②

Double-8 display

According to the different setting of remote control, the nixie light may display the current temperature (the temperature scope is

from 16oC to 30oC) and indoor ambient temperature. The set temperature displayed in auto cooling and fan mode is 25

℃ ,

The set

temperature displayed in auto heating mode is 20℃and the temperature will display H1 under the defrosting mode.(If you set the

fahrenheit temperature display, the nixie light will display according to fahrenheit temperature)

(10) Protection function and failure display

E2: Freeze-proong protection E4: Exhausting protection E5: Overcurrent protection

E6: Communication failure H4: Overload protection

F1: Indoor ambient sensor start and short circuit (continuously measured failure in 30S)

F2: Indoor evaporator sensor start and short circuit (continuously measured failure in 30S)

F3: Outdoor ambient sensor start and short circuit (continuously measured failure in 30S)

F4: Outdoor condenser sensor start and short circuit (continuously measured failure in 30S, and dont measure within 10 minutes

after defrosted)

F5: Outdoor exhausting sensor start and short circuit (continuously measured failure in 30S after the compressor operated 3 minutes)

H3: Overload protection of compressor H5: Module protection

PH: High-voltage protection PL: Low-voltage protection

P1: Nominal cooling and heating P2: Maximum cooling and heating

P3: Medium cooling and heating P0: Minimum cooling and heating

(11) Drying Function

You may start or stop the drying function under the modes of cooling and dehumidify at the starting status (The modes of automatism,

heating and air supply do not have drying function). When you start the drying function, after stop the machine by pressing the switch

button, you should keep running the inner fans for 10 minutes under low air damper (The swing will operate as the former status

within 10 minutes, and other load is stopped), then stop the entire machine; When you stop the drying function, press the switch

button will stop the machine directly. When you start the drying function, operating the drying button will stop the inner fans and close

the guide louver.

(12) Memory function when interrupting the power supply

Memory content: mode, swing function, light, set temperature and wind speed. After interrupted the power supply, the machine will

start when recovering the power according to the memory content automatically. If the last remote control command has not set

the timed function, the system will remember the last remote control command and operate according it. If the last remote control

command has set timed function and the power supply is interrupted before the timed time, the system will remember the timed

function of the last remote control command, the timed time will recounted form power on. If the last remote control command has

set timed function, the time is out and the system is start or stop according to the set time when the power supply is interrupted, the

system will remember the operation status before the power supply was interrupted, and do not carry out timed action; The timed

clock will not remembered.

(13) Sleep function

In this mode, the system will select proper sleep curve to operate according to different set temperature.

①

If start up sleep function under cooling or drying mode, the system will increase set temperature automatically within a certain

range to operate.

②

If start up sleep function under heating mode, the system will decrease set temperature automatically within a certain range to

operate.

26

Service Manual

Part

Ⅱ

: Installation and Maintenance

1. Select the installation location according to the require­ment of this manual.(See the requirements in installation
part)

2. Handle unit transportation with care; the unit should not
be carried by only one person if it is more than 20kg.

3. When installing the indoor unit and outdoor unit, a suf­cient xing bolt must be installed; make sure the installation
support is rm.

4. Ware safety belt if the height of working is above 2m.

5. Use equipped components or appointed components dur­ing installation.

6. Make sure no foreign objects are left in the unit after n­ishing installation.

Electrical Safety Precautions:

7. Notes for Installation and Maintenance

Safety Precautions:
Important!

Please read the safety precautions carefully before
installation and maintenance.
The following contents are very important for installation
and maintenance.

Please follow the instructions below.

●The installation or maintenance must accord with the
instructions.

●Comply with all national electrical codes and local
electrical codes.

●Pay attention to the warnings and cautions in this
manual.

●All installation and maintenance shall be performed by
distributor or qualied person.

●All electric work must be performed by a licensed
technician according to local regulations and the
instructions given in this manual.

●Be caution during installation and maintenance. Prohibit
incorrect operation to prevent electric shock, casualty and
other accidents.

1. Cut off the power supply of air conditioner before
checking and maintenance.

2. The air condition must apply specialized circuit and
prohibit share the same circuit with other appliances.

3. The air conditioner should be installed in suitable
location and ensure the power plug is touchable.

4. Make sure each wiring terminal is connected firmly
during installation and maintenance.

5. Have the unit adequately grounded. The grounding
wire can’t be used for other purposes.

6. Must apply protective accessories such as protective
boards, cable-cross loop and wire clip.

7. The l ive wire , neutra l wire and ground ing wire of
power supply must be corresponding to the live wire,
neutral wire and grounding wire of the air conditioner.

8. The power cord and power connection wires can’t be
pressed by hard objects.

9. If power cord or connection wire is broken, it must be
replaced by a qualied person.

1. Avoid contact between refrigerant and re as it generates
poisonous gas; Prohibit prolong the connection pipe by
welding.

2. Apply specied refrigerant only. Never have it mixed with
any other refrigerant. Never have air remain in the refrigerant
line as it may lead to rupture or other hazards.

3. Ma k e su r e n o r ef r ig er a nt ga s is leaki n g ou t wh en
installation is completed.

4. If th ere is refr iger ant lea kage, plea se t ake s uff icie nt
measure to minimize the density of refrigerant.

5. Never touch the refrigerant piping or compressor without
wearing glove to avoid scald or frostbite.

Warnings

Refrigerant Safety Precautions:

Improper installation may lead to re hazard, explosion,
electric shock or injury.

Installation Safety Precautions:

10. If the power cord or connection wire is not long enough,
please get the specialized power cord or connection wire
from the manufacture or distributor. Prohibit prolong the wire
by yourself.

11. For the air conditioner without plug, an air switch must
be installed in the circuit. The air switch should be all-pole
parting and the contact parting distance should be more than
3mm.

12. Make sure all wires and pipes are connected properly and
the valves are opened before energizing.

13. Check if there is electric leakage on the unit body. If yes,
please eliminate the electric leakage.

14. Replace the fuse with a new one of the same specication
if it is burnt down; don’t replace it with a cooper wire or
conducting wire.

15. If the unit is to be installed in a humid place, the circuit
breaker must be installed.

27

Service Manual

Main Tools for Installation and Maintenance

1. Level meter, measuring tape

4. Electroprobe

7. Electronic leakage detector

10. Pipe pliers, pipe cutter

2. Screw driver

5. Universal meter

8. Vacuum pump

11. Pipe expander, pipe bender

3. Impact drill, drill head, electric drill

6. To r q u e wrench , open-end w r e n ch, in n e r
hexagon spanner

9. Pressure meter

12. Soldering appliance, refrigerant container



28

Service Manual

8. Installation

8.1 Installation Dimension Diagram

Drainage pipe

At least 250cm

At least 15cm

At least 50cm

At least 50cm

At least

30cm

At least 300cm

At least 200cm

Space to the oor

Space to the obstruction

Space to the

obstruction

Space to the

obstruction

Space to the ceiling

Space to the obstruction

Space to the obstruction

At least 30cm

At least 15cm

At least 15cm

Space to the wall

Space to the wall

Space to the wall

29

Service Manual

Installation procedures

Preparation before installation

Prepare tools

Read the requirements
for electric connection

select installation
location

Select indoor unit
installation location

Install wall-mounting
frame, drill wall holes

Connect pipes of indoor
unit and drainage pipe

Connect wires of indoor unit

Connect wires of outdoor unit

Bind up pipes and
hang the indoor unit

Make the bound pipes pass
through the wall hole and then
connect outdoor unit

Neaten the pipes

Vacuum pumping and leakage detection

Check after installation and test operation

Finish installation

Note: this flow is only for reference; please find the more detailed installation steps in this section.

Select outdoor unit
installation location

Install the support of outdoor unit
(select it according to the actual situation)

Install drainage joint of outdoor unit
(only for cooling and heating unit)

Connect pipes of outdoor unit

Start installation

Fix outdoor unit

30

Service Manual

No. Name No. Name

1 Indoor unit 8 Sealing gum
2 Outdoor unit 9 Wrapping tape

3 Connection pipe 10

Support of outdoor
unit

4 Drainage pipe 11 Fixing screw

5

Wall-mounting
frame

12

Drainage plug(cooling
and heating unit)

6

Connecting
cable(power cord)

13

Owner’s manual,
remote controller

7 Wall pipe

1. Safety Precaution

(1) Must follow the electric safety regulations when installing
the unit.
(2) According to the local safety regulations, use qualified
power supply circuit and air switch.
(3) Make sure the power supply matches with the requirement
of air conditioner. Unstable power supply or incorrect wiring
may result in electric shock,re hazard or malfunction. Please
insta ll proper powe r supply cables befo re usi ng the air
conditioner.

(4) Properly connect the live wire, neutral wire and grounding
wire of power socket.
(5) Be sure to cut off the power supply before proceeding any
work related to electricity and safety.
(6) Do not put through the power before nishing installation.
(7) For appliances with type Y attachment,the instructions
shall contain the substance of thefollowing.If the supply cord is
damaged,it must be replaced by the manufacturer,its service
agent or similarly qualied persons in order to avoid a hazard.
(8) The temperature of refrigerant circuit will be high, please
keep the interconnection cable away from the copper tube.

8.2 Installation Parts-checking

8.3 Selection of Installation Location

8.4 Electric Connection Requirement

8.5 Installation of Indoor Unit

Air-conditioner Air switch capacity

09/12K 10A

1.Please contact the local agent for installation.

2.Don't use unqualied power cord.

1. Basic Requirement:

Installing the unit in the following places may cause
malfunction. If it is unavoidable, please consult the local dealer:
(1) The place with strong heat sources, vapors, ammable or
explosive gas, or volatile objects spread in the air.
(2) The place with high-frequency devices (such as welding
machine, medical equipment).
(3) The place near coast area.
(4) The place with oil or fumes in the air.
(5) The place with sulfureted gas.
(6) Other places with special circumstances.

2. Grounding Requirement:

(1) The air conditioner is rst class electric appliance. It must
be prope rly grounding with special ized grounding device
by a professional. Please make sure it is always grounded
effectively, otherwise it may cause electric shock.
(2) The yellow-green wire in air conditioner is grounding wire,
which can't be used for other purposes.
(3) The grounding resistance should comply with national
electric safety regulations.
(4) The app liance must be positioned so that the plug is
accessible.
(5) An all-pole disconnection switch having a contact separation
of at least 3mm in all poles should be connected in xed wiring.
(6) Including an air switch with suitable capacity, please note
the following table. Air switch should be included magnet
buckle and heating buckle function, it can protect the circuit­short and overload. (Caution: please do not use the fuse only
for protect the circuit)

1. Choosing Installation Iocation

Recommend the installation location to the client and then
conrm it with the client.

2. Install Wall-mounting Frame

(1) Hang the wall-mounting frame on the wall; adjust it in
horizontal position with the level meter and then point out the
screw xing holes on the wall.
(2) Drill the screw xing holes on the wall with impact drill (the
specification of drill head should be the same as the plastic

2. Indoor Unit:

(1) There should be no obstruction near air inlet and air outlet.
(2) Select a location where the condensation water can be
dispersed easily and won't affect other people.
(3) Select a loc ation w hich is conve nient to connect the
outdoor unit and near the power socket.
(4) Select a location which is out of reach for children.
(5) The location should be able to withstand the weight of
indoor unit and won't increase noise and vibration.
(6) The appliance must be installed 2.5m above oor.
(7 ) D on't inst all the indo or uni t r ight abov e the electr ic
appliance.
(8) The appliance shall not be installed in the laundry.

3. Outdoor Unit:

(1) Select a location where the noise and outow air emitted by
the outdoor unit will not affect neighborhood.
(2) The location should be well ventilated and dry, in which the
outdoor unit won't be exposed directly to sunlight or strong
wind.
(3) The location should be able to withstand the weight of
outdoor unit.
(4) Make sure that the installation follows the requirement of
installation dimension diagram.
(5) Select a location which is out of reach for children and far
away from animals or plants.If it is unavoidable, please add
fence for safety purpose.

Note:

31

Service Manual

Outlet

pipe

Drain hose

Drain hose

Tape

Outlet pipe

Insulating pipe

Torque wrench

Open-end
wrench

Indoor pipe

Pipe

Union nut

Union nutPipe joint

Pipe

Refer to the following table for wrench moment of force

:

Left

Rear left

Right

Rear right

Cut off
the hole

Left Right

Drain hose

Insulating pipe

5-10

°

Φ55mm

Indoor

Outdoor

(1) Pay attention to dust prevention and take relevant safety
measures when opening the hole.
(2) The plastic expansion particles are not provided and should
be bought locally.

(1) Add insulating pipe in the indoor drain hose in order to
prevent condensation.
(2) The plastic expansion particles are not provided.
(As show in Fig.10)

Fig.1

Fig.2

Fig.5 Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.3

Fig.4

in the holes.
(3) Fix the wall-mounting frame on the wall with tapping screws
(ST4.2X25TA) and then check if the frame is rmly installed by
pulling the frame. If the plastic expansion particle is loose,
please drill another xing hole nearby.

3. Install Wall-mounting Frame

(1) Choose the position of piping hole according to the direction
of outlet pipe. The position of piping hole should be a little
lower than the wall-mounted frame.(As show in Fig.1)

5. Connect the Pipe of Indoor Unit

(1) Aim the pipe joint at the corresponding bellmouth.(As show
in Fig.5)
(2) Pretightening the union nut with hand.
(3) Adjust the torque force by referring to the following sheet.
Place the open-end wrench on the pipe joint and place the
torque wrench on the union nut. Tighten the union nut with
torque wrench.(As show in Fig.6)
(4) Wrap the indoor pipe and joint of connection pipe with
insulating pipe, and then wrap it with tape.(As show in Fig.7)

6. Install Drain Hose

(1) Connect the drain hose to the outlet pipe of indoor unit.(As
show in Fig.8)
(2) Bind the joint with tape.(As show in Fig.9)

4. Outlet Pipe

(1) The pipe can be led out in the direction of right, rear right,
left or rear left.(As show in Fig.3)
(2) When selecting leading out the pipe from left or right, please
cut off the corresponding hole on the bottom case.(As show in
Fig.4)

(2) Open a piping hole with the diameter of Φ55mm on the
selected outlet pipe position.In order to drain smoothly, slant
the piping hole on the wall slightly downward to the outdoor
side with the gradient of 5-10°.(As show in Fig.2)

Note:

Note:

Left

Wall

Φ55mm

Right

Mark in the middle of it

Level meter

Rear piping hole

Wall

Space

to the

wall

above

150mm

Space

to the

wall

above

150mm

Φ55mm

Rear piping hole

Hex nut diameter(mm) Tightening torque(N.m)

Φ6 15~20

Φ9.52 30~40

Φ12 45~55
Φ16 60~65
Φ19 70~75

32

Service Manual

(4) Put wiring cover back and then tighten the screw.
(5) Close the panel.

Indoor unit

Gas
pipe

Indoor and

outdoor power cord

Liquid
pipe

Drain hose

Band

Drain hose

Band

Connection pipe

Indoor power cord

Wiring cover

Screw

Panel

(1 ) A ll w i res of indoo r un it and outdo or unit shoul d be
connected by a professional.
(2) If the length of power connection wire is insufcient, please
contact the supplier for a new one. Avoid extending the wire by
yourself.
(3) For the air conditioner with p lug, the plug s hould be
reachable after nishing installation.
(4) For the air conditioner without plug, an air switch must be
installed in the line. The air switch should be all-pole parting
and the contact parting distance should be more than 3mm.

(1) The power cor d and control wir e can't be cros sed or
winding.
(2) The drain hose should be bound at the bottom.

Do not bend the drain hose too excessively in order to prevent
blocking.

7. Connect Wire of Indoor Unit

(1) Open the panel, remove the screw on the wiring cover and
then take down the cover.(As show in Fig.11)

8. Bind up Pipe

(1) Bind up the connection pipe, power cord and drain hose
with the band.(As show in Fig.14)
(2) Reserve a certain length of drain hose and power cord
for installation when binding them. When binding to a certain
degree, separate the indoor power and then separate the drain
hose.(As show in Fig.15)
(3) Bind them evenly.
(4) The liquid pipe and gas pipe should be bound separately at
the end.

9. Hang the Indoor Unit

(1) Put the bound pipes in the wall pipe and then make them
pass through the wall hole.
(2) Hang the indoor unit on the wall-mounting frame.
(3) Stuff the gap between pipes and wall hole with sealing gum.
(4) Fix the wall pipe.(As show in Fig.16)
(5) Check if the indoor unit is installed rmly and closed to the
wall.(As show in Fig.17)

(2) Make the power connection wire go through the cable-cross
hole at the back of indoor unit and then pull it out from the front
side.(As show in Fig.12)

(3) Remove the wire clip; connect the power connection wire
to the wiring terminal according to the color; tighten the screw
and then x the power connection wire with wire clip.(As show
in Fig.13)

Note:

Note:

Note:

Indoor

Outdoor

Wall pipe

Sealing gum

Upper hook

Lower hook of
wall-mounting frame

Fig.11

Fig.12

Fig.13

Fig.14

Fig.15

Fig.16

Fig.17

Note:This step only applicable for N.American models.

Power connection

wire

Cable-cross

hole

N(1) 2 3

blue brownblack

yellow­green

Outdoor unit connection

33

Service Manual

(1) Take sufficient protective measures when installing the
outdoor unit.
(2) Make sure the support can withstand at least four times the
unit weight.
(3) The outdoor unit should be installed at least 3cm above the
oor in order to install drain joint.(As show in Fig.18)
(4) For the unit with cooling capacity of 2300W~5000W, 6
expansion screws are needed; for the unit with cooling capacity
of 6000W~8000W, 8 expansion screws are needed; for the
unit with cooling capacity of 10000W~16000W, 10 expansion
screws are needed.

(1) After tightening the screw, pull the power cord slightly to
check if it is rm.
(2) Never cut the power connection wire to prolong or shorten
the distance.

(1) The through-wall height of drain hose shouldn't be higher
than the outlet pipe hole of indoor unit.(As show in Fig.25)
(2) Slant the drain hose slightly downwards. The drain hose
can't be curved, raised and uctuant, etc.(As show in Fig.26)

Note:

Note:

Note:

The drain hos
can't raise
upwards

gas pipe

Liquid pipe

Liquid
valve

gas valve

Union nut

Pipe joint

Foot holes

Foot holes

Chassis

Outdoor drain joint

Drain hose

Drain vent

8.6 Installation of Outdoor Unit

1. Fix the Support of Outdoor Unit(Select it According to
the Actual Installation Situation)

(1) Select installation location according to the house structure.
(2) Fix the support of outdoor unit on the selected location with
expansion screws.

5. Connect Outdoor Electric Wire

(1) Remove the wire clip; connect the power connection wire to
the wiring terminal according to the color; x them with screws.
(As show in Fig.23)

6. Neaten the Pipes

(1) The pipes should be placed along the wall, bent reasonably
and hidden possibly. Min. semidiameter of bending the pipe is
10cm.
(2) If the outdoor unit is higher than the wall hole, you must set
a U-shaped curve in the pipe before pipe goes into the room,
in order to prevent rain from getting into the room.(As show in
Fig.24)

(2) Fix the power connection wire with wire clip.

2. Install Drain Joint(Only for cooling and heating unit)

(1) Connect the outdoor drain joint into the hole on the chassis.
(2) Connect the drain hose into the drain vent.
(As show in Fig.19)

3. Fix Outdoor Unit

(1) Place the outdoor unit on the support.
(2) Fix the foot holes of outdoor unit with bolts.
(As show in Fig.20)

4. Connect Indoor and Outdoor Pipes

(1) Remove the screw on the right handle of outdoor unit and
then remove the handle.(As show in Fig.21)
(2) Remove the screw cap of valve and aim the pipe joint at the
bellmouth of pipe.(As show in Fig.22)

(3) Pretightening the union nut with hand.
(4) Tighten the union nut with torque wrench.

Refer to the following table for wrench moment of force

:

Fig.18 Fig.19

Fig.20

Fig.22

Fig.23

Fig.24

Fig.25

At least 3cm above the floor

Handle

Screw

Fig.21

U-shaped curve

Wall

Hex nut diameter(mm) Tightening torque(N.m)

Φ6 15~20

Φ9.52 30~40

Φ12 45~55
Φ16 60~65
Φ19 70~75

Handle

Indoor unit connection

yellow green

N(1)

N

N

L

L

32

blue black brown

34

Service Manual

(3) The water outlet can't be placed in water in order to drain
smoothly.(As show in Fig.27)

Liquid valve

Gas valve

Refrigerant charging
vent

Nut of refrigerant

Charging vent

Vacuum pump

Piezometer

Valve cap

Lo Hi

Inner hexagon
spanner

Open

Close

The drain hose can't be fluctuant

The drain hose
can't be fluctuant

The water
outlet can't be
fluctuant

No. Items to be checked Possible malfunction

1

Has the unit been
installed rmly?

The unit may drop, shake or
emit noise.

2

Have you done the
refrigerant leakage test?

It may cause insufcient cooling
(heating) capacity.

3

Is heat insulation of
pipeline sufcient?

It may cause condensation and
water dripping.

4 Is water drained well?

It may cause condensation and
water dripping.

5

Is the voltage of power
supply according to the
voltage marked on the
nameplate?

It may cause malfunction or
damage the parts.

6

Is electric wiring and
pipeline installed
correctly?

It may cause malfunction or
damage the parts.

7

Is the unit grounded
securely?

It may cause electric leakage.

8

Does the power cord
follow the specication?

It may cause malfunction or
damage the parts.

9

Is there any obstruction
in air inlet and air outlet?

It may cause insufcient cooling
(heating).

10

The dust and
sundries caused
during installation are
removed?

It may cause malfunction or
damaging the parts.

11

The gas valve and liquid
valve of connection pipe
are open completely?

It may cause insufcient cooling
(heating) capacity.

The water outlet
can't be placed
in water

1. Use Vacuum Pump

(1) Remove the valve caps on the liquid valve and gas valve
and the nut of refrigerant charging vent.
(2) Connect the charging hose of piezometer to the refrigerant
charging vent of gas valve and then connect the other charging
hose to the vacuum pump.
(3) Open the piezometer completely and operate for 10-15min
to check if the pressure of piezometer remains in -0.1MPa.
(4) Close the vacuum pump and maintain this status for 1-2min
to check if the pressure of piezometer remains in -0.1MPa. If
the pressure decreases, there may be leakage.
(5) Remove the piezometer, open the valve core of liquid valve
and gas valve completely with inner hexagon spanner.
(6) Tighten the screw caps of valves and refrigerant charging
vent.(As show in Fig.28)

1. Check after Installation

Check according to the following requirement after finishing
installation.

2. Test Operation

(1) Preparation of test operation

● The client approves the air conditioner installation.

● Specify the important notes for air conditioner to the client.
(2) Method of test operation

● Put through the power, press ON/OFF button on the remote
controller to start operation.

● Press MODE button to select AUTO, COOL, DRY, FAN and
HEAT to check whether the operation is normal or not.

● If the ambient temperature is lower than 16℃, the air
conditioner can’t start cooling.

2. Leakage Detection

(1) With leakage detector:
Check if there is leakage with leakage detector.
(2) With soap water:
If leakage detector is not available, please use soap water for
leakage detection. Apply soap water at the suspected position
and keep the soap water for more than 3min. If there are air
bubbles coming out of this position, there's a leakage.

8.7 Vacuum Pumping and Leak Detection

8.8 Check after Installation and Test
Operation

Fig.26

Fig.27

Fig.28

35

Service Manual

9. Maintenance

Note: When replacing the controller, be sure to insert the wire jumper into the new controller, otherwise the unit will display C5

9.1 Malfunction Analysis

The remote
controller does
not receive
signals (after it
is powered, the
buzzer will
sound, unless it
has
malfunction)

Trip of breaker or
blow of fuse

Air conditioner can not

start up

Measure insulation resistance
to ground to see if there is any
leakage.

The circuit or the part of the air
conditioner has malfunction.
They heat and break the insula­tion and lead to short circuit or
creepage. Measure the insula­tion resistance or eliminate the
malfunction one by one. If the
breaker itself has malfunction,
then replace the breaker.

The transformer connection is
loose or has bad contact or the
transformer has malfunction.

Fasten the wiring; measure the
output voltage of the trans­former , if it is incorrect, change
the transformer.

No power

Check power supply circuit.

Power plug is not well plugged in
and poor connection.

Check if the plug is properly
plugged in and make the loose
contact firm.

Fuse of controller burnt out

The air condi­tioner does not
react after it is
powered ( after
the plug is
inserted, the
buzzer does not
sound and the
remote startup
has no
response)

Remote controller malfunction

Receiver loose or poor connection

Receiver is broken

Change controller fuse

Controller is broken

Check remote controller

Remote controller is short of power

Change batteries

First, press the manual switch
button AUTO,if there is no
response,check based on the
above methods. If it runs nor­mally after pressing the button,
check again whether the instal­lation position and the connec­tion wire of the reception head
is correct. If it is correct,then re­place the receiver or the remote
controller.

Power voltage is too low

Check the voltage. If it is lower than 10% of
the rated voltage, check the cause, improve
the power supply condition and add the sta-

bilized voltage power supply.

The breaker trips at once when it
is set to “ON”.

The breaker trips in few minutes
when it is set to “ON”.

36

Service Manual

Improper set of temperature

Adjust set temperature

If cooling (heating) load is
proper

Check the forecasted load of cooling (heating)

The refrigerant has leakage or is
insufficient

Check and fill the leakage, then
vacuumize it and supplement the re­frigerant as required

Leakage between the high pres­sure and the low pressure in­side the compressor

Replace the compressor

Malfunction of four-way valve Replace the four-way valve

Local block of capillary Replace the capillary

Blockage of cooling system

Judge whether the system is blocked by
observing the condensation of evapora­tor and the pressure value of the high
pressure manometer and take measures
to deal with the system.

Malfunction of
refri g e r a nt
flow

Heat insulation for the connection
pipes of the indoor unit and the out­door unit is bad.

Make sure that heat insulation for the thick and thin pipes
is good. Heat insulation must also be provided for the
joint andthe exposed part of the copper pipe .

Block of outdoor heat ex­changer

Clean the dust accumulated on the surface of
the heat exchanger.

Air filter were blocked

Clean the filter

Fan speed was set too slow

To set the fan speed to high or
middle speed

Air circulation
is insufficient

Fan rotation speed becomes
low

Capacitor
damage

Motor damage

Replace the capaci­tor

Replace the motor

The installation position of the
outdoor unit is not appropriate.

Good ventilation must be provided for the
installation position of the outdoor unit.

The outdoor temperature is too high.

Properly install the rainproof plate or the sunproof plate. If the
maximum cool air still can not meet the requirement, it is sug­gested to replace the air conditioner.

Keep certain air tightness indoors, try not to use
electricalappliance with large quantity of heat

The air tightness is not enough. People
come in and out too frequently. There
are heating devices indoors.

Poor COOL(HEAT) operation

37

Service Manual

Improper set of temperature

Adjust set temperature

If cooling (heating) load is
proper

Check the forecasted load of cooling (heating)

The refrigerant has leakage or is
insufficient

Check and fill the leakage, then
vacuumize it and supplement the re­frigerant as required

Leakage between the high pres­sure and the low pressure in­side the compressor

Replace the compressor

Malfunction of four-way valve Replace the four-way valve

Local block of capillary Replace the capillary

Blockage of cooling system

Judge whether the system is blocked by
observing the condensation of evapora­tor and the pressure value of the high
pressure manometer and take measures
to deal with the system.

Malfunction of
refrig e r a n t
flow

Heat insulation for the connection
pipes of the indoor unit and the out­door unit is bad.

Make sure that heat insulation for the thick and thin pipes
is good. Heat insulation must also be provided for the
joint andthe exposed part of the copper pipe .

Block of outdoor heat ex­changer

Clean the dust accumulated on the

surface of

the heat exchanger.

Air filter were blocked

Clean the filter

Fan speed was set too slow

To set the fan speed to high or
middle speed

Air circulation
is insufficient

Fan rotation speed becomes
low

Capacitor
damage

Motor damage

Replace the capaci­tor

Replace the motor

The installation position of the
outdoor unit is not appropriate.

Good ventilation must be provided for the
installation position of the outdoor unit.

The outdoor temperature is too high.

Properly install the rainproof plate or the sunproof plate. If the
maximum cool air still can not meet the requirement, it is sug­gested to replace the air conditioner.

Keep certain air tightness indoors, try not to use
electricalappliance with large quantity of heat

The air tightness is not enough. People
come in and out too frequently. There
are heating devices indoors.

Poor COOL(HEAT) operation

38

Service Manual

Adjust fan location

Fan of indoor unit contacts other parts

Foreign object in indoor unit

Take out the foreign object

Adjust support washer of compressor, and
tighten loosen screws

Touch of pipeline of outdoor unit Separate the touching pipeline.

Abnormal sound
and shake

Touch of inner plates

1. Tighten connect screw.

2. Stick absorbing clay between plates.

Louver of outdoor unit touched outer
case.

Adjust location of louver.

Abnormal sound inside compressor

Change compressor

Drainage pipe blocked or broken Change drainage pipe

Re-wrap and make it tight.

Wrap of refrigerant pipe joint is not
close enough.

Water leakage

Change controller

Wire loose or wrong connection

In cool, heat
mode, the
outdoor unit
and compres­sor will not run.

Correctly wire according to the drawing

Improper setting of temperature

Adjust setting temp.

Controller malfunction (IC2003
broken, creepage of parallel capaci­tor of relay loop, relay is broken etc.)

First, check whether the connection is
wrong. If no, replace the parts

The swing fan
does not run.

The torque of the swing motor is not
enough

Wrong connection

The controller is damaged(IC2003 is
damaged, the swing relay can not
close, etc)

Compressor shakes too much

39

Service Manual

9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement

NO.

Malfunction
Name

Display Method of Indoor Unit

Display Method of Outdoor

Unit

A/C status Possible Causes

Dual-8

Code

Display

Indicator Display (during
blinking, ON 0.5s and OFF

0.5s)

Indicator has 3 kinds of
display status and during
blinking, ON 0.5s and OFF

0.5s

Operation
Indicator

Cool
Indicator

Heating
Indicator

Yellow

Indicator

Red

Indicator

Green

Indicator

1

High
pressure
protection of
system

E1

OFF 3s
and blink
once

During cooling and drying
operation, except indoor
fan operates, all loads stop
operation.
During heating operation, the
complete unit stops.

Possible reasons:

1. Refrigerant was superabundant;

2. Poor heat exchange (including

and bad radiating environment );
Ambient temperature is too high.

2

Antifreezing
protection

E2

OFF 3S
and blink
twice

OFF 3S
and blink
3 times

During cooling and drying
operation, compressor and
outdoor fan stop while indoor
fan operates.

1. Poor air-return in indoor unit;

2. Fan speed is abnormal;

3. Evaporator is dirty.

3

System block
or refrigerant
leakage

E3

OFF 3S

and blink

3 times

OFF 3S

and

blink

9 times

The Dual-8 Code Display will
show E3 until the low pressure
switch stop operation.

1.Low-pressure protection

2.Low-pressure protection of
system

3.Low-pressure protection of
compressor

4

High
discharge
temperature
protection of
compressor

E4

OFF 3S
and blink
4 times

OFF 3S

and blink

7 times

During cooling and drying
operation, compressor and
outdoor fan stop while indoor
fan operates. During heating
operation, all loads stop.

Please refer to the malfunction
analysis (discharge protection,
overload).

5

Overcurrent
protection

E5

OFF 3S
and blink
5
times

OFF 3S

and blink

5 times

During cooling and drying
operation, compressor and
outdoor fan stop while indoor
fan operates. During heating
operation, all loads stop.

1. Supply voltage is unstable;

2. Supply voltage is too low and
load is too high;

3. Evaporator is dirty.

6

Communi­cation
Malfunction

E6

OFF 3S
and blink
6
times

OFF

During cooling operation,
compressor stops while
indoor fan motor operates.
During heating operation, the
complete unit stops.

Refer to the corresponding
malfunction analysis.

7

High
temperature

resistant
protection

E8

OFF 3S
and blink
8
times

OFF 3S

and blink

6 times

During cooling operation:
compressor will stop while
indoor fan will operate.
During heating operation, the
complete unit stops.

Refer to the malfunction analysis
(overload, high temperature
resistant).

8

EEPROM
malfunction

EE

OFF 3S

and blink

15 times

OFF 3S

and blink

11 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop

Replace outdoor control panel AP1

9

Limit/
decrease
frequency
due to high
temperature
of module

EU

OFF 3S

and blink

6 times

OFF 3S

and blink

6 times

All loads operate normally,
while
operation frequency for
compressor is decreased

Discharging after the complete unit
is de-energized for 20mins, check
whether the thermal grease on
IPM Module of outdoor control

the radiator is inserted tightly.
If its no use, please replace control
panel AP1.

10

Malfunction
protection of
jumper cap

C5

OFF 3S

and blink

15 times

Wireless remote receiver and
button are effective, but can
not dispose the related
command

1. No jumper cap insert on
mainboard.

2. Incorrect insert of jumper cap.

3. Jumper cap damaged.

4. Abnormal detecting circuit of
mainboard.

40

Service Manual

NO.

Malfunction
Name

Display Method of Indoor Unit

Display Method of Outdoor

Unit

A/C status Possible Causes

Dual-8

Code

Display

Indicator Display (during
blinking, ON 0.5s and OFF

0.5s)

Indicator has 3 kinds of
display status and during
blinking, ON 0.5s and OFF

0.5s

Operation
Indicator

Cool
Indicator

Heating
Indicator

Yellow

Indicator

Red

Indicator

Green

Indicator

11

Gathering
refrigerant

F0

OFF 3S

and blink

1 times

OFF 3S

and blink

1 times

When the outdoor unit receive
signal of Gathering refrigerant
,the system will be forced to
run under cooling mode for
gathering refrigerant

Nominal cooling mode

12

Indoor
ambient
temperature
sensor is
open/short
circuited

F1

OFF 3S

and blink

once

During cooling and drying
operation, indoor unit operates
while other loads will stop;
during heating operation,
the complete unit will stop
operation.

1. Loosening or bad contact of
indoor ambient temp. sensor and
mainboard terminal.

2. Components in mainboard fell
down leads short circuit.

3. Indoor ambient temp. sensor
damaged.(check with sensor
resistance value chart)

4. Mainboard damaged.

13

Indoor
evaporator
temperature
sensor is
open/short
circuited

F2

OFF 3S

and blink

twice

AC stops operation once
reaches the setting
temperature. Cooling, drying:
internal fan motor stops
operation while other loads
stop operation; heating: AC
stop operation

1. Loosening or bad contact of
Indoor
evaporator temp. sensor and
mainboard terminal.

2. Components on the mainboard
fall
down leads short circuit.

3. Indoor evaporator temp. sensor
damaged.(check temp. sensor
value
chart for testing)

4. Mainboard damaged.

14

Outdoor
ambient
temperature
sensor is
open/short
circuited

F3

OFF 3S

and blink

3 times

OFF 3S

and

blink

6 times

During cooling and drying
operating, compressor stops
while indoor fan operates;
During heating operation,
the complete unit will stop
operation

Outdoor temperature sensor
hasnt been connected well or
is damaged. Please check it by
referring to the resistance table for
temperature sensor)

15

Outdoor
condenser
temperature
sensor is
open/short
circuited

F4

OFF 3S

and blink

4 times

OFF 3S

and

blink

5 times

During cooling and drying
operation, compressor stops
while indoor fan will operate;
During heating operation,
the complete unit will stop
operation.

Outdoor temperature sensor
hasnt been connected well or
is damaged. Please check it by
referring to the resistance table for
temperature sensor)

16

Outdoor
discharge
temperature
sensor is
open/short
circuited

F5

OFF 3S

and blink

5 times

OFF 3S

and

blink

7 times

During cooling and drying
operation, compressor will sop
after operating for about 3
mins,
while indoor fan will operate;
During heating operation, the
complete unit will stop after
operating for about 3 mins.

1.Outdoor temperature sensor
hasnt been connected well or is
damaged. Please check it by
referring to the resistance table for
temperature sensor)

2.The head of temperature sensor
hasnt been inserted into the copper
tube

17

Limit/
decrease
frequency
due to
overload

F6

OFF 3S

and blink

for 6

times

OFF 3S

and

blink

3 times

All loads operate normally,
while
operation frequency for
compressor is decreased

Refer to the malfunction analysis
(overload, high temperature
resistant)

18

Decrease
frequency
due to
overcurrent

F8

OFF 3S

and blink

8 times

OFF 3S

and
blink
once

All loads operate normally,
while
operation frequency for
compressor is decreased

The input supply voltage is too low;
System pressure is too high and
overload

41

Service Manual

NO.

Malfunction
Name

Display Method of Indoor Unit

Display Method of Outdoor

Unit

A/C status Possible Causes

Dual-8

Code

Display

Indicator Display (during
blinking, ON 0.5s and OFF

0.5s)

Indicator has 3 kinds of
display status and during
blinking, ON 0.5s and OFF

0.5s

Operation
Indicator

Cool
Indicator

Heating
Indicator

Yellow

Indicator

Red

Indicator

Green

Indicator

19

Decrease
frequency
due to
high air
discharge

F9

OFF 3S

and blink

9 times

OFF 3S

and

blink

twice

All loads operate normally,
while
operation frequency for
compressor is decreased

Overload or temperature is too
high;

Malfunction of electric expansion
valve (EKV)

20

Limit/
decrease
frequency
due to
antifreezing

FH

OFF 3S

and blink

2 times

OFF 3S

and blink

2 times

OFF 3S

and

blink

4 times

All loads operate normally,
while operation frequency for
compressor is decreased

Poor air-return in indoor unit or fan
speed is too low

21

Voltage for
DC bus-bar
is too high

PH

OFF 3S

and blink

11 times

OFF 3S

and

blink

13 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
operation.

1. Measure the voltage of position
L and N on wiring board (XT), if the
voltage is higher than 265VAC, turn
on the unit after the supply voltage
is increased to the normal range.

2.If the AC input is normal,
measure the voltage of electrolytic
capacitor C on control panel (AP1),
if its normal, theres malfunction
for the circuit, please replace the
control panel (AP1)

22

Voltage of
DC bus-bar
is too low

PL

OFF 3S

and blink

21 times

OFF 3S

and

blink

12 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop

1. Measure the voltage of position
L and N on wiring board (XT), if the
voltage is higher than 150VAC,
turn on the unit after the supply
voltage is increased to the normal
range.

2.If the AC input is normal,
measure the voltage of electrolytic
capacitor C on control panel (AP1),
if its normal, theres malfunction
for the circuit, please replace the
control panel (AP1)

23

Compressor
Min
frequence in
test state

P0

(during

blinking,

ON

0.25s

and OFF

0.25s)

(during

blinking,

ON

0.25s

and OFF

0.25s)

Showing during min. cooling or
min. heating test

24

Compressor
rated
frequence in
test state

P1

(during

blinking,

ON

0.25s

and OFF

0.25s)

(during

blinking,

ON

0.25s

and OFF

0.25s)

Showing during nominal cooling or
nominal heating test

25

Compressor
maximum
frequence in
test state

P2

(during

blinking,

ON

0.25s

and OFF

0.25s)

(during

blinking,

ON

0.25s

and OFF

0.25s)

Showing during max. cooling or
max. heating test

42

Service Manual

NO.

Malfunction
Name

Display Method of Indoor Unit

Display Method of Outdoor

Unit

A/C status Possible Causes

Dual-8

Code

Display

Indicator Display (during
blinking, ON 0.5s and OFF

0.5s)

Indicator has 3 kinds of
display status and during
blinking, ON 0.5s and OFF

0.5s

Operation
Indicator

Cool
Indicator

Heating
Indicator

Yellow

Indicator

Red

Indicator

Green

Indicator

26

Compressor
intermediate
frequence in
test state

P3

(during

blinking,

ON

0.25s

and OFF

0.25s)

(during

blinking,

ON

0.25s

and OFF

0.25s)

Showing during middle cooling or
middle heating test

27

Overcurrent
protection of
phase
current for
compressor

P5

OFF 3S

and blink

15 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
operation.

Refer to the malfunction
analysis (IPM protection, loss
of synchronism protection and
overcurrent protection of phase
current for compressor.

28

Charging
malfunction

of capacitor

PU

OFF 3S

and blink

17 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop

Refer to the part three—charging
malfunction analysis of capacitor

29

Malfunction
of module
temperature
sensor circuit

P7

OFF 3S

and blink

18 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop

Replace outdoor control panel AP1

30

Module high
temperature
protection

P8

OFF 3S

and blink

19 times

During cooling operation,
compressor will stop while
indoor fan will operate;
During heating operation, the
complete unit will stop

After the complete unit is de­energized for 20mins, check
whether the thermal grease on IPM
Module of outdoor control panel

radiator is inserted tightly. If its no
use, please replace control panel
AP1.

31

Decrease
frequency
due to high
temperature
resistant
during
heating
operation

H0

OFF 3S

and blink

10 times

All loads operate normally,
while
operation frequency for
compressor is decreased

Refer to the malfunction analysis
(overload, high temperature
resistant)

32

Static
dedusting
protection

H2

OFF 3S

and blink

twice

33

Overload
protection for
compressor

H3

OFF 3S

and blink

3 times

OFF 3S

and blink

8 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
operation.

1. Wiring terminal OVC-COMP
is loosened. In normal state, the
resistance for this terminal should
be less than 1ohm.

2.Refer to the malfunction analysis (

discharge protection, overload)

43

Service Manual

NO.

Malfunction
Name

Display Method of Indoor Unit

Display Method of Outdoor

Unit

A/C status Possible Causes

Dual-8

Code

Display

Indicator Display (during
blinking, ON 0.5s and OFF

0.5s)

Indicator has 3 kinds of
display status and during
blinking, ON 0.5s and OFF

0.5s

Operation
Indicator

Cool
Indicator

Heating
Indicator

Yellow

Indicator

Red

Indicator

Green

Indicator

34

System is
abnormal

H4

OFF 3S

and blink

4 times

OFF 3S

and blink

6 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
operation.

Refer to the malfunction analysis
(overload, high temperature
resistant)

35

IPM
protection

H5

OFF 3S

and blink

5 times

OFF 3S

and blink

4 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
operation.

Refer to the malfunction
analysis (IPM protection, loss
of synchronism protection and
overcurrent protection of phase
current for compressor.

36

Module
temperature
is too high

H5

OFF 3S

and blink

5 times

OFF 3S

and blink

10 times

37

Internal motor
(fan motor) do
not operate

H6

OFF 3S

and blink

11 times

Internal fan motor, external fan
motor, compressor and electric
heater stop operation,guide
louver stops at present
location.

1. Bad contact of DC motor
feedback terminal.

2. Bad contact of DC motor
control end.

3. Fan motor is stalling.

4. Motor malfunction.

5. Malfunction of mainboard rev
detecting circuit.

38

Desynchro­nizing of
compressor

H7

OFF 3S

and blink

7 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
operation.

Refer to the malfunction
analysis (IPM protection, loss
of synchronism protection and
overcurrent protection of phase
current for compressor.

39

PFC
protection

HC

OFF 3S

and blink

6 times

OFF 3S

and blink

14 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
operation.

Refer to the malfunction analysis

40

Outdoor DC
fan motor
malfunction

L3

OFF 3S

and blink

23 times

OFF 3S

and

blink

14 times

Outdoor DC fan motor
malfunction lead to compressor
stop operation,

DC fan motor malfunction or
system blocked or the connector
loosed

41

power
protection

L9

OFF 3S

and blink

20 times

OFF 3S

and blink

9 times

compressor stop operation and
Outdoor fan motor will stop
30s latter , 3 minutes latter
fan motor and compressor will
restart

To protect the electronical
components when detect high
power

42

Indoor unit
and outdoor
unit doesn't
match

LP

OFF 3S

and blink

19 times

OFF 3S

and blink

16 times

compressor and Outdoor fan
motor can’t work

Indoor unit and outdoor unit doesn't

match

43

Failure start­up

LC

OFF 3S

and blink

11 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
operation.

Refer to the malfunction analysis

44

Service Manual

NO.

Malfunction
Name

Display Method of Indoor Unit

Display Method of Outdoor

Unit

A/C status Possible Causes

Dual-8

Code

Display

Indicator Display (during
blinking, ON 0.5s and OFF

0.5s)

Indicator has 3 kinds of
display status and during
blinking, ON 0.5s and OFF

0.5s

Operation
Indicator

Cool
Indicator

Heating
Indicator

Yellow

Indicator

Red

Indicator

Green

Indicator

44

Malfunction of
phase current
detection
circuit for
compressor

U1

OFF 3S

and blink

13 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop

Replace outdoor control panel AP1

45

Malfunction of
voltage
dropping for
DC bus-bar

U3

OFF 3S

and blink

20 times

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop

Supply voltage is unstable

46

Malfunction
of complete
units current
detection

U5

OFF 3S

and blink

13 times

During cooling and drying
operation, the compressor will
stop while indoor fan will
operate;
During heating operating,
the complete unit will stop
operation.

Theres circuit malfunction on
outdoor units control panel AP1,
please replace the outdoor units
control panel AP1.

47

The four-way
valve is
abnormal

U7

OFF 3S

and blink

20 times

If this malfunction occurs
during
heating operation, the complete
unit will stop operation.

1.Supply voltage is lower than
AC175V;

2.Wiring terminal 4V is loosened or
broken;

3.4V is damaged, please replace
4V.

48

Zero­crossing
malfunction of
outdoor unit

U9

OFF 3S
and blink
18 times

During cooling operation,
compressor will stop while
indoor fan will operate; during
heating,the complete unit will
stop operation.

Replace outdoor control panel AP1

49

Frequency
limiting
(power)

OFF 3S
and blink
13 times

50

Compressor
is open­circuited

OFF 3S

and blink

once

51

The
temperature
for turning
on the unit is
reached

OFF 3S
and blink

8 times

52

Frequency
limiting
(module
temperature)

OFF 3S
and blink

11 times

45

Service Manual

NO.

Malfunction
Name

Display Method of Indoor Unit Display Method of Outdoor Unit

A/C status Possible Causes

Dual-8

Code

Display

Indicator Display (during
blinking, ON 0.5s and OFF

0.5s)

Indicator has 3 kinds of display
status and during blinking, ON

0.5s and OFF 0.5s

Operation
Indicator

Cool
Indicator

Heating
Indicator

Yellow

Indicator

Red

Indicator

Green

Indicator

53

Normal
communica­tion

continously

5455Defrosting

OFF 3S

and blink

once

(during
blinking,
ON 10s

and OFF

0.5s)

OFF 3S

and blink

twice

Defrosting will occur in
heating
mode. Compressor will
operate
while indoor fan will stop
operation.

Its the normal state

U8

Flash 17

times

every 3s

Operation

of remote

controller or

control

panel is

available,

but the unit

won’t act.

1. Discharging speed of
capacitor is slow, which lead
to wrong judgement of
controller.

Zero-crossing detection
circuit of main board is
abnormal

Refer to maintenance flowchart

Zero-crossing
inspection
circuit malfun­ction of the
IDU fan motor

46

Service Manual

47

Service Manual

Analysis or processing of some of the malfunction display:

1. Compressor discharge protection

Possible causes: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser; the system has

noncondensing gas (such as air, water etc.); blockage of capillary assy (including lter); leakage inside four-way valve causes incorrect

operation; malfunction of compressor; malfunction of protection relay; malfunction of discharge sensor; outdoor temperature too high.

Processing method: refer to the malfunction analysis in the above section.

2. Low voltage overcurrent protection

Possi ble cause: Sudden drop of supply voltage.

3. Communication malfunction

Processing method: Check if communication signal cable is connected reliably.

4. Sensor open or short circuit

Processing method: Check whether sensor is normal, connected with the corre sponding position on the controller and if damage of lead

wire is found.

5. Compressor over load protection

Possible causes: insufcient or too much refrigrant; blockage of capillary and increase of suction temp.; improper running of compressor,

burning in or stuck of bearing, damage of discharge valve; malfunction of protector.

Processing method: adjust refrigerant amount; replace the capillary; replace the compressor; use universal meter to check if the

contactor of compress or is ne when it is not overheated, if not replace the protector.

6. System malfunction

i.e.overload protection.When tube temperature(Check the temperature of outdoor heat exchanger when cooling and check the

temperatur e of indoor heat exchanger when heating) is too high, protectionwill beactivated.

Possi ble causes: Outdoor temperature is too high when cooling; insufcient outdoor air circulation; refrigerant ow malfunction.

please refer to the malfunction analysis in the previous section for handling method .

7. IPM module protection

Processing method:Once the module malfunction happens,if it persists for a long time and can not be selfcanceled, cut off the power and

turn off the unit,and then re-energize the unit again after about 10 min.After repeating the procedure for sever times, if the malfunction

still exists,replace the module.

48

Service Manual

9.3 How to Check Simply the Main Part

(1) Malfunction of Temperature Sensor F1, F2

Troubleshooting for
F1,F2 malfunction

Is

the wiring terminal between the

temperature sensor and the controller

loosened or poorly contacted?

Insert the temperature

sensor tightly

yes

Is malfunction

eliminated

Is there short circuit due to trip-over of

the parts?

Make the parts upright

yes

Is malfunction

eliminated

Replace the mainboard
with the same model.

End

no

no

Is the

temperature sensor normal according

to the Resistance

Table?

no

Replace it with a

temperature sensor

with the same model

no

yes

yes

Is malfunction

removed

no

yes

yes

no

Main detection points:

●

Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted?

●

Is there short circuit due to trip-over of the parts?

●

Is the temperature sensor broken?

●

Is mainboard broken?

Malfunction diagnosis process:

Indoor Unit

49

Service Manual

(2) Malfunction of Blocked Protection of IDU Fan Motor H6

Main detection points:

●

Is the control terminal of PG motor connected tightly?

●

Is the feedback interface of PG motor connected tightly?

●

The fan motor can't operate

？

●

The motor is broken?

●

Detectioncircuit of the mainboard is dened abnormal?

Malfunction diagnosis process:

Measure the voltage of this foot to neutral
wire on the mainboard

Start

off stir the blade with a tool

While power is

smoothly

Replace PG motor

End

yes

no

Is malfunction

eliminated

yes

no

Insert the control

terminal of PG

motor tightly

no

no

Reinstall the blade and

motor correctly

Is malfunction

eliminated

no

no

yes

yes

Turn on the

unit again; measure whether the output

voltage on control terminal for PG motor

is more than 50V within 1 min after the

louvers are opened

no

yes

yes

Is the motor

started up

no

Is malfunction

eliminated

yes

yes

yesno

yes

Is malfunction

eliminated

Tighten the screw; reassemble the blade, motor
and shaft bearing rubber base sub-assy to make
sure there is no foreign object between them

Replace the mainboard
with the same model.

Check if the connection of PG
motor feedback terminal is firm.

Check if the connection
of PG motor control
terminal is firm.

to see whether the blade rotates

2.

Malfunction of Blocked Protection of IDU Fan Motor H6

Main.detection.points:

ƽ

SmoothlyIs.the.control.terminal.of.PG.motor.connected.tightly?

ƽ

SmoothlyIs.the.feedback.interface.of.PG.motor.connected.tightly?

ƽ

The.fan.motor.can't.operate.

˛

ƽ

The.motor.is.broken?

ƽ

Detectioncircuit.of.the.mainboard.is.

.abnormal?

Malfunction.diagnosis.process:

50

Service Manual

Appearance of
the jumper cap

Troubleshooting for C5

malfunction

Is there jumper cap on the

mainboard

?

Is

the jumper cap inserted

correctly and

tightly

?

Replace the jumper cap

with the same model

End

yes

yes

Assemble the jumper
cap with the same
model

no

Is malfunction

eliminated

no

yes

Insert the

jumper cap

tightly

Is malfunction

eliminated

no

no

yes

Is malfunction

eliminated

no

yes

Replace the mainboard
with the same model.

(3) Malfunction of Protection of Jumper Cap C5

Main detection points:

●

Is there jumper cap on the mainboard?

●

Is the jumper cap inserted correctly and tightly?

●

The jumper is broken?

●

Detectioncircuit of the mainboard isdened abnormal?

Malfunction diagnosis process:

51

Service Manual

(4) Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8

Main detection points:

ƽ

Instant energization afte de-energization while the capacitordischarges slowly?

ƽ

Malfunction diagnosis process:

Troubleshooting
for U8 malfunction

Turn power off
for 1minute,the
turn back on

U8 is still
displayed

The unit returns to normal.
Conclusion:U8 is displayed due
to power off/on while the
capacitor discharges slowly.

The zero-cross detection
circuit of the mainboard is
defined abnormal.Replace
the mainboard with the same
model

End

No

Yes

52

Service Manual

(1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel)

Main Check Points:

●Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC.

●Is the reactor (L) correctly connected? Is the connection loose or fallen? Is the reactor (L) damaged?

Fault diagnosis process:

Troubleshooting for
F1,F2 malfunction

Is

the wiring terminal between the

temperature sensor and the controller

loosened or poorly contacted?

Insert the temperature

sensor tightly

yes

Is malfunction

eliminated

Is there short circuit due to trip-over of

the parts?

Make the parts upright

yes

Is malfunction

eliminated

Replace the mainboard
with the same model.

End

no

no

Is the

temperature sensor normal according

to the Resistance

Table?

no

Replace it with a

temperature sensor

with the same model

no

yes

yes

Is malfunction

removed

no

yes

yes

no

Outdoor Unit

53

Service Manual

(2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control
panel)

Main check points:

●Is the connection between control panel AP1 and compressor COMP secure? Loose? Is the connection in correct order?

●Is the voltage input of the machine within normal range? (Use AC voltmeter to measure the voltage between terminal L and N on the

wiring board XT)

●Is the compressor coil resistance normal? Is the insulation of compressor coil against the copper tube in good condition?

●Is the working load of the machine too high? Is the radiation good?

I●s the charge volume of refrigerant correct?

Fault diagnosis process:

Energize and

switch on

IPM protection

occurs after the
machine has run for
a

p

eriod of time?

Use AC voltmeter
to measure the
voltage between
terminal L and N
on the wiring
board XT)

If the voltage
between terminal L
and N on wiring
board XT is within
210VAC~250VAC?

Check the supply
voltage and
restore it to

210VAC~250VAC

Voltage between

the two ends of celectrolytic

capacitor is

Restart the unit. Before

protection occurs,

use DC voltmeter to

measure the voltage

between the two

ends of electrolytic

capacitor on control

panel AP1

If the unit can

work

normally?

Please confirm:

1. If the indoor and
outdoor heat
exchangers are
dirty? If they are

obstructed by other

objects which affect

the heat exchange
of indoor and
outdoor unit.

2. If the indoor and
outdoor fans are
working normally?

3. If the environment
temperature is too
high, resulting in
that the system

pressure is too high

and exceeds the

permissible range?

4. If the charge
volume of
refrigerant is too
much, resulting in
that the system
pressure is too
high?

5. Other conditions
resulting in that the

system pressure

becomes too high.

The connection
of capacitor C2

is loose.

Reconnect the
capacitor C2 according
to Electrical Wiring
Diagram. Then,
Restart the
unit.

Stop the unit and
disconnect the power
supply. Wait 20 minutes,
or use DC voltmeter to
measure the voltage

between the two ends of

capacitor C2, until the

voltage is lower than 20V

Replace the capacitor
C2. Then, energize
and start the unit.

Replace the

control panel AP1

Take corrective actions
according to Technical
Service Manual, and

then energize and start

the unit.

If there is any

abnormality

described above?

Replace the

control panel AP1

If the connection
between AP1 and
COMP is unsecure
or the connection
order is wrong?

Connect the control panel

A

P1 and compressor
COMP correctly according
to the Electrical Wiring
Diagram. Then, energize
and start the unit.

Use ohmmeter to
measure the resistance
between the three
terminals on compressor
COMP, and compare the
measurements with the

compressor resistance on

Service Manual.

If the

resistance is

normal?

Use ohmmeter to
measure the resistance
between the two

terminals of compressor

COMP and copper tube.

Replace the
compressor

COMP

Resistance higher

than 500MΩ?

Replace the
control panel

AP1

END

Y N

Y

N

Y

If the unit can

work normallv?

Y

If the unit can

work normally?

Y

N

Y

N

If the unit can

work normally?

Y

Y

N

N

If the unit can

work

normally?

Y

Y

N

N

N

Y

higher than
250V

Remove the wires
on the two ends of
capacitor C2. Then,
use capacitance
meter to measure
the capacitor C2.
Verify as per the
Parameters Sheet.

Stop the unit and
disconnect the power
supply. Then, check
the connection of
capacitor C2
according to Electrical
Wiring Diagram.

If capacitor
C2 is failed?

Refer to the
Electrical Wiring
Diagram and check
if the connection
between AP1 and
COMP is loose and if
the connection order
is correct.

54

Service Manual

(3)High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor
unit)

Mainly detect:

●Is outdoor ambient temperature in normal range?

●Are the outdoor and indoor fans operating normally?

●Is the heat dissipation environment inside and outside the unit good?

Fault diagnosis process:

End

Y

N

Y

N

Y

N

Overheat and high

temperature protection

Is outdoor ambient temperature higher than 53?

20 minutes after the complete

unit is powered off.

Is heat dissipation of the indoor unit

and outdoor unit abnormal?

Normal protection, please operate
it after the outdoor ambient temp­erature is normalized.

Improve the heat
dissipation environ­ment of the unit

Does the outdoor fan work normally?

1. Check if the fan terminal OFAN
is connected correctly

2. Resistance between any two
terminals is measure by an ohm
gauge and should be less than 1K
Ohm.

Replace the
control panel

AP1

Replace the fan

capacitor C1

Replace the
outdoor fan

55

Service Manual

(4) Start-up failure (following AP1 for outdoor unit control board)

Mainly detect:

●Whether the compressor wiring is connected correct?

●Is compressor broken?

●Is time for compressor stopping enough?

Fault diagnosis process:

Y

N

Y

N

N

Y

Y

N

Power on the unit

Is stop time of the compressor

longer than 3 minutes?

Restart it up after
3 minutes

Does startup fail?

Are the wires for the compressor connected

correctly? Is connection sequence right?

Connect the wires as
per the connection
diagram

Replace the control panel AP1

If the fault is eliminated?

Replace the

compressor

End

56

Service Manual

(5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit)

Mainly detect:

●Is the system pressure too high?

●Is the input voltage too low?

Fault diagnosis process:

Out of step occurs once the

unit is powered on.

Is stop time of the

compressor longer than

3 minutes?

Are the wires for the compressor connected

correctly? Is connection sequence right?

Is the connection made in clockwise

direction?

Connect the

wires correctly

Replace the control

panel AP1

If the fault is eliminated?

Replace the
compressor

End

Out of step occurs in

operation

Is the outdoor fan working

normally?

Is the outdoor unit blocked

by foreign objects?

Replace the

control panel AP1

If the fault is eliminated?

Replace the
compressor

End

Check if the fan terminal

OFAN is connected correctly

Remove foreign objects

Replace the fan

capacitor C1

Replace the
outdoor fan

57

Service Manual

(6)Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board)

Mainly detect:

●Is the PMV connected well or not? Is PMV damaged?

●Is refrigerant leaked?

Fault diagnosis process:

20 minutes after the

complete unit is

powered off

Is the terminal FA for the

electronic expansion valve

connected correctly?

Connect the

wires correctly

Resistances between the first four pins
close to the terminal hole and the fifth
pin are almost the same, less than 100
ohm.

Replace the electronic

expansion valve

If the fault is eliminated?

If the fault is eliminated?

Replace the

control panel

AP1

Coolant leakage, refilling

the coolant

End

58

Service Manual

(7) Power factor correct or (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the
outdoor unit)

Mainly detect:

●Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken

Fault diagnosis process:

Y

Y

N

N

N

N

N

N

Y

Y

Y

Start

Check wiring of the
reactor (L) of the
outdoor unit and the
PFC capacitor

Whether there is any

damage or

short-circuit?

Replace it as per the

wiring diagram and

reconnect the wires

If the fault is eliminated?

Remove the PFC capacitor

and measure resistance

between the two terminals.

Is the resistance around zero?

The capacitor is

short circuited and

the capacitor
should be repla­ced

Restart the unit

If the fault is eliminated?

Disconnect the terminals for the
reactor and measure the resistance
between the two terminals of the

reactor by an ohm gauge

Whether there is any damage

or short-circuit?

Replace the reactor

Restart the unit

If the fault is eliminated?

Replace the control

panel AP1

End

Y

59

Service Manual

(8) Communication malfunction: (following AP1 for outdoor unit control board)

Mainly detect:

●Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged?

●Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any

damage?

Fault diagnosis process:

Y

N

Y

N

N

Y

N

N

Y

N

Y

N

Y

Y

Start

Did the equipment operate
normally before the failure

occurs?

The AP1 voltage
detection circuit
is at fault

Check wiring inside of
the indoor and outdoor

units

Are wires broken?

Check the communication

circuit of the outdoor unit

If the fault is eliminated?

The communication

circuit is abnormal

Replace the main board
of

the indoor unit

End

If the fault is eliminated?

Replace the main board
AP1 of the outdoor unit

If the fault is eliminated?

Is the connection right?

Check the wiring of the indoor and
outdoor units with reference to the

wiring diagram

Correctly connect the

corresponding wires for

the indoor and outdoor

units with reference to

the wiring diagram

60

Service Manual

(9) Malfunction of Overcurrent Protection E5

Main detection points:

●

Is the supply voltage unstable with big uctuation?

●

Is the supply voltage too low with overload?

●

Hardware trouble?

Malfunction diagnosis process:

5. Malfunction of Overcurrent Protection

Main detection points:

● Is the supply voltage too low with overload?

● Hardware trouble?
Malfunction diagnosis process:

no

no

no

no

yes

no

no

End

yes

Malfunction is
eliminated

Is the supply voltage unstable
with big fluctuation?

Start

Is the supply voltage too low
with overload?

The fan is abnormal? Fan
speed is too low or fan doesn’t rotate

Measure the

current of live wire on the main

board with a clamp ampere meter. Is the
current higher than the value of the
overcurrent protection?

Is there blockage inside
the system? (Filth blockage, ice plug,

greasy blockage, the cut off valve hasn’t been

opened completely)

Is the compressor running
abnormally? Is there abnormal sound or oil
leakage; is the temperature of the shell
too high, etc.?

Is the indoor / outdoor

heat exchanger dirty,or are the air inlet

and outlet blocked?

Normal fluctuation should be within 10 % of the
rated voltage on the nameplate

Malfunction is
eliminated

no

yes

no

yes

no

yes

no

no

no

yes

no

yes

no

yes

yes

yes

yes

yes

yes

yes

Malfunction is
eliminated

Malfunction is
eliminated

Malfunction is
eliminated

Malfunction is
eliminated

Malfunction is
eliminated

Malfunction is
eliminated

Adjust the supply voltage to maintain it within
normal range

Clean the indoor and outdoor heat exchangers
and remove the blockage of air inlet and outlet

Check the motor and reinstall the motor to have
the fan run normally

Replace the mainboard with the same model

Replace the compressor

Flush the heat exchangers with high pressure
nitrogen

Replace the mainboard with
the same model

61

Service Manual

10. Exploded View and Parts List

10.1 Indoor Unit

43

42

45

46

44

15

14

13

12

16

17

18

19

20

21

22

23

24

38

37

36

35

34

33

32

31

30

29

28

27

11

10

9

8

7

6

5

4

3

2

1

25

39

40

26

41

ON/OFF MODE

FAN SWING

SLEEP TIMER

+

-

AUTO
COOL
DRY
FAN
HEAT

T-ONT-OFF

SWING
SLEEP
LOCK
SPEED

62

Service Manual

Above data is subject to change without notice.

No.

Description

Part Code

QtyASH-09AIR ASH-12AIR

1 Front Panel Sub-Assy 20012241 20012241 1

2 Front Panel A2 20012121S 20012121S 1

3 Filter Sub-Assy 11122081 11122081 2

4 Screw Cover 24252016 24252016 3

5 Electric Box Cover2 20122075 20122075 1

6 Front Case 20012120C 20012120C 1

7 Axile Bush 10542036 10542036 1

8 Guide Louver 10512111 10512111 1

9 Air Louver 1 10512113 10512113 1

10 Air Louver 2 10512114 10512114 1

11 Helicoid Tongue 26112162 26112162 1

12 Axile Bush 10542036 10542036 1

13 Rear Case assy 2220210111 2220210111 1

14 Cross Flow Fan 10352043 10352043 1

15 Fan Bearing 7651221001 7651221001 1

16 O-Gasket sub-assy of Bearing 7651205102 7651205102 1

17 O-Gasket of Cross Fan Bearing 76512203 76512203 1

18 Ring of Bearing 26152022 26152022 1

19 Remote Controller 30510065 30510065 1

20 Drainage Hose 0523001406 0523001406 1

21 Wall Mounting Frame 01252015 01252015 1

22 Evaporator Assy 01002762 0100276201 1

23 Evaporator Support 24212090 24212090 1

24 Connecting Cable 4002052317 4002052317 0

25 Connecting Cable 400205403 400205403 0

26 Decorative Strip / / /

27 Tube Sensor 3900031302 3900031302 1

28 Ambient Temperature Sensor / / /

29 Main Board 30138000723 30138000723 1

30 Terminal Board 42011233 42011233 1

31 Electric Box 2011208201 2011208201 1

32 Transformer / / /

33 Electric Box Assy 10000202063 10000202063 1

34 Display Board 30565056 30565056 1

35 Crank 10582070 10582070 1

36 Step Motor 1521212901 1521212901 1

37 Rubber Plug (Water Tray) 76712012 76712012 1

38 Motor Press Plate 26112160 26112160 1

39 Fan Motor 15012115 15012115 1

40 Pipe Clamp 26112164 26112164 1

41 Jumper 4202021902 4202021902 1

42 Capacitor CBB61 33010747 33010747 1

43 Shield Cover of Electric Box Sub-assy 0159207301 0159207301 1

44 Shield Cover of Electric Box 0141203601 0141203601 1

45 Electric Box Cover1 22242135 22242135 1

46 Power Cord / / /

indoor

indoor

63

Service Manual

10.2 Outdoor Unit

ASH-09AIR

14

2

17

26

12

5

23
24

8

9

4

11

3

13

15

10

25

27

18

16

20

21

22

19

1

6

7

64

Service Manual

Above data is subject to change without notice.

No.

Description

Part Code

Qty

ASH-09AIR outdoor

Product Code CB171W10400

1 Front Grill 22413043 1

2 Cabinet Sub-assy 0000030001510 1

3 Axial Flow Fan 10333004 1

4 Electrical Heater / /

5 Chassis Sub-assy 02803037P 1

6 Clapboard Sub-Assy 0123338502 1

7 Drainage Connecter 06123401 1

8 Compressor and Fittings 0010389601 1

9 4-Way Valve Assy 03073151 1

10 Valve Support 01713142P 1

11 Cut off Valve Assy 07133474 1

12 Valve 07130239 1

13 Valve Support Block 26113017 2

14 Right Side Plate Sub-Assy

01303178

1

15 Big Handle 2623343106 1

16 Magnet Coil 4300040050 1

17 Magnet Coil 4300040050 1

18 Rear Grill 01473009 1

19 Electric Box 20113032 1

20 Filter Board / /

21 Main Board 30138000744 1

22 Electric Box Assy 10000100354 1

23 Top Cover Sub-Assy 0125307002 1

24 Condenser Assy 01100200412 1

25 Motor Support 01703104 1

26 Fan Motor 1501308506 1

27 Small Handle 26233100 1

65

Service Manual

ASH-12AIR

3

4 5 76

2

1

20 23

24

2221

18

17

15

16

19

8

10

9

12

11

14

13

66

Service Manual

Above data is subject to change without notice.

No.

Description

Part Code

Qty

ASH-12AIR outdoor

1 Left Side Plate 01303200P 1

2 Fan Motor 15013085 1

3 Motor Support 01703136 1

4 Condenser Assy 01100200426 1

5 Top Cover Sub-Assy 01253081 1

6 Rear Grill 01475014 1

7 Clapboard Sub-Assy 01233180 1

8 Compressor and Fittings 0010389201 1

9 Compressor Gasket 76713027 3

10 4-Way Valve Assy 03073386 1

11 Big Handle 2623343106 1

12 Cut off Valve Assy 0713380601 1

13 Cut off Valve Assy 071302392 1

14 Valve Support

01713142P

1

15 Front Grill 22413044 1

16 Cabinet 01433033P 1

17 Axial Flow Fan 10333011 1

18 Chassis Sub-assy 01700000033P 1

19 Electric Box Assy 10000100353 1

20 Electric Box 20113032 1

21 Main Board 30138000745 1

22 Reactor 43130184 1

23 Wire Clamp 71010103 1

24 Terminal Board 42010313 1

67

Service Manual

11. Removal Procedure

11.1 Removal Procedure of Indoor Unit

Caution: discharge the refrigerant

completely before removal.

ProcedureSteps

1. Remove fi lter

2. Remove horizontal louver

a

b

Panel

Clasp

left fi lter and right fi ler

Axile bush

Open the panel.

Loosen the clasp shown in the fig and
then pull the left filter and right filer
outwards to remove them.

Push out the axile bush on horizontal
louver. Bend the horizontal louver with
hand and then separate the horizontal
louver from the crankshaft of step motor
to remove it.

Horizontal louver Location of step motor

68

Service Manual

a

b

Open the front panel; separate the panel
rotation shaft from the groove fixing the
front panel and then removes the front
panel.

Note:
The display of some models is fixed on
the panel; unscrew the screws fi xing the
display on the panel before removing the
panel.

Remove the screws on the electric box
cover to remove the electric box cover.

Electric box cover

Screws

Panel

Front panel

Panel rotation

Groove

3. Remove panel

4. Remove electric box cover

Front case
sub-assy

Front case
sub-assy

Left clasp

Middle clasp

Right clasp

Screw caps

Screws

Remove the screws fi xing front case.

Note:

1.Open the screw caps before removing
the screws around the air outlet.

2.The quantity of screws fixing the front
case sub-assy is different for different
models.

Loosen the clasps at left, middle and right
sides of front case. Life the front case
sub-assy upwards to remove it.

5. Remove front case sub-assy

ProcedureSteps

69

Service Manual

Vertical louver

Loosen the connection clasps between
vertical louver and bottom case to remove
vertical louver.

Clasps

6. Remove vertical louver

7. Remove electric box assy

Bottom
case

a

b

Cut off the tieline which binding the
temperature sensor and grounding wire
on the evaporator, and then pull out the
indoor tube temperature sensor from the
evaporator.
Remove the screws at the connection
place between grounding wire and
evaporator.
Pull out the wiring terminal of motor and
wiring terminal of step motor from the
mainboard.

Note:

1.Location of tube temperature sensor
and tieline on the evaporator is different
for different models.

2.When pulling out the wiring terminal,
pay attention to loose the clasp and don’t
pull it so hard.

Loosen the connection clasps between
shield cover of electric box sub-assy and
electric box, and then remove the shield
cover of electric box sub-assy.

Electric box

Clasps

Wiring
terminal
of motor

Temperature sensor

Grounding wire

Location of grounding

wire screw

Evaporator

Wiring terminal
of step motor

Shield cover of electric
box sub-assy

ProcedureSteps

70

Service Manual

c

a

b

c

d

Remove two screws fi xing display.

Note:
The display of some models is fixed on
the panel; unscrew the screws fixing the
display on the panel before removing the
panel.

Remove the screw fi xing electric box assy
and then remove the electric box assy.

Screws

Screws

Display

Screws

Connection pipe clamp

Evaporator assy

Screws

Connection pipe

8. Remove evaporator assy

At the back of the unit, remove the
screw fixing connection pipe clamp
and then remove the connection pipe
clamp.

Remove 3 screws fi xing evaporator assy.

Adjust the position of connection pipe
on evaporator slightly and then lift the
evaporator upwards to remove it.

ProcedureSteps

71

Service Manual

Motor clamp

10. Remove motor and cross fl ow blade

a

b

Remove the screws fixing motor clamp
and then remove the motor clamp.

Remove the screws at the connection
place of cross flow blade and motor; lift
the motor and cross flow blade upwards
to remove them.

Motor

Screws

Cross fl ow

c Remove the bearing holder sub-assy.

Holder sub-assy

Bottom case

Remove the screw fi xing step motor and
then remove the step motor.

Step motor

9. Remove stepping motor

ProcedureSteps

Screws

72

Service Manual

11.2 Removal Procedure of Outdoor Unit

Warning: Be sure to wait for a minimum of 20 minutes after

turning off all power supplies and discharge the refrigerant

completely before removal.

ASH-09AIR outdoor

Procedure Steps

1.Remove big handle

2. Remove top cover

top cover

big handle

Before disassamble

Remove 1 connection screw fixing big
handleand then removethe big handle.

Remove 3 connection screws among
top cover plate, front panel and right
sideplate. Then remove top cover
plate.

73

Service Manual

3.Remove grille and front panel

4.Remove axial flow blade

5.Remove right side plate

Remove connection screws between the front grille
and the front panel. Then remove the front grille.
Remove connection screws connecting the front
panel with the chassis and the motor support, and
then remove the front panel.

Remove the nut fixing the blade and then
remove the axial flow blade.

Remove connection screws connecting the right
side plate with the valve support and the electric
box. Then remove the right side plate.

Grille

Panel

Axial flow blade

Right side plate

Procedure Steps

74

Service Manual

Remove the 2 screws fixing the cover of elec­tric box. Lift to remove the cover. Loosen the
wire and disconnect the terminal. Lift to re­move the electric box assy.

6.Remove electric box assy

Electric box assy

Unscrew the fastening nut of the 4-way Valve
Assy coil and remove the coil. Wrap the 4­way Valve Assy with wet cotton and unsolder
the 4 weld spots connecting the 4-way Valve
Assy to take it out.(Note: Refrigerant should
be discharged firstly.) Welding process
should be as quickly as possible and keep
wrapping cotton wet all the time. Be sure not
to burn out the lead-out wire of compressor.

7.Remove 4-way valve assy

8.Remove capillary sub-assy

Unsolder weld point of capillary Sub-assy,
valve and outlet pipe of condensator. Then
remove the capillary Sub-assy. Do not block
the capillary when unsoldering it. (Note: be­fore unsoldering,discharge refrigerants
completely)

4-way Valve Assy

Capillary Sub-assy

Procedure Steps

75

Service Manual

Remove the 4 tapping screws fixing the motor.
Pull out the lead-out wire and remove the
motor. Remove the 2 tapping screws fixing
the motor support. Lift motor support to re­move it.

9.Remove motor and motor support

Motor

Motor support

10.Remove clapboard sub-assy

Loosen the screws of the Clapboard Sub-Assy .
The Clapboard Sub-Assy has a hook on the
lower side. Lift and pull the Clapboard Sub-Assy
to remove.

Clapboard Sub-Assy

Procedure Steps

76

Service Manual

11.Remove Compressor

a Remove the 2 screws fixing the gas valve.

Unsolder the welding spot connecting gas valve
and air return pipe and remove the gas valve.
(Note: it is necessary to warp the gas valve when
unsoldering the welding spot.) Remove the 2
screws fixing liquid valve. Unsolder the weld­ing spot connecting liquid valve and remove the
liquid valve.

b Remove the 3 footing screws of the compressor

and remove the compressor.

Compressor

Gas valve

Liquid valve

Procedure Steps

77

Service Manual

ASH-12AIR outdoor

Procedure

Steps

1. Before disassembly

3. Remove top cover

2. Remove big handle and valve cover

top cover

big handle

Remove the connection screw xing the
big handle and then remove the valve
cover.

Remove connection screws connecting
the top panel with the front panel and the
right side plate, and then remove the top
panel.

valve cover

78

Service Manual

Remove connection screws between the
front grille and the front panel. Then
remove the grille.

Remove connection screws connecting
the front panel with the chassis and the
motor support and then remove the front
panel.

Remove connection screws connecting
the right side plate with the valve support
and the electric box. Then remove the
right side plate.

Remove the nut on the blade and then
remove the axial ow blade.

front panel

grille

ProcedureSteps

right side plate

axial ow blade

4. Remove grille

5. Remove front panel

6. Remove right side plate

7. Remove axial ow blade

79

Service Manual

Remove the tapping screws xing the
motor and disconnect the leading wire
insert of the motor. Then remove the
motor.
Remove the tapping screws xing the
motor support and lift the motor support to
remove it.

Remove screws xing the electric box
subassembly; loosen the wire bundle and
unplug the wiring terminals. Then lift the

electric box to remove it.

Remove the screws xing the isolation
sheet and then remove the isolation
sheet.

Unsolder the welding joint connecting the
capillary, valves and the outlet pipe of
condenser to remove the capillary. Do not
block the capillary with welding slag
during unsoldering.

motor support

motor

Electric Box Assy

ProcedureSteps

isolation sheet

8. Remove motor and motor support

9. Remove Electric Box Assy

10. Remove isolation sheet

11. Remove compressor

liquid valve

gas valve

a

80

Service Manual

ProcedureSteps

compressor

Remove the 2 screws xing the gas valve
and unsolder the welding joint between
the gas valve and the air-return pipe to
remove the gas valve. (NOTE: Discharge
the refrigerant completely before
unsoldering; when unsoldering, wrap the
gas valve with a wet cloth completely to
avoid damage to the valve caused by high
temperature).
Remove the 2 screws xing the liquid
valve and unsolder the welding joint
connecting the liquid valve to the Y-type
pipe to remove the liquid valve.

b

Unsolder pipes connecting with
compressor.

c

Remove the 3 foot nuts on the compressor
and then remove the compressor.

d

4-way valve

nuts

81

Service Manual

Appendix:

1.Standard length of connection pipe

● 5m, 7.5m, 8m.

2.Min. length of connection pipe is 3m.

3.Max. length of connection pipe and max. high difference.

4.The additional refrigerant oil and refrigerant charging required after
prolonging connection pipe

● After the length of connection pipe is prolonged for 10m at the basis
of standard length, you should add 5ml of refrigerant oil for each
additional 5m of connection pipe.

● The calculation method of additional refrigerant charging amount (on
the basis of liquid pipe):

Appendix 1: Reference Sheet of Celsius and Fahrenheit

Appendix 2: Conguration of Connection Pipe

Cooling capacity

Max length of

connection pipe

Max height

difference
5000 Btu/h(1465 W) 15 m 5 m
7000 Btu/h(2051 W) 15 m 5 m
9000 Btu/h(2637 W) 15 m 10 m

12000 Btu/h(3516 W) 20 m 10 m
18000 Btu/h(5274 W) 25 m 10 m
24000 Btu/h(7032 W) 25 m 10 m

28000 Btu/h(8204 W) 30 m 10 m
36000 Btu/h(10548 W) 30 m 20 m
42000 Btu/h(12306 W) 30 m 20 m
48000 Btu/h(14064 W) 30 m 20 m

Set temperature

Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32

Ambient temperature

Fahrenheit

display

temperature

（℉）

Fahrenheit

（℉）

Celsius

（℃）

Fahrenheit

display

temperature

（℉）

Fahrenheit

（℉）

Celsius

（℃）

Fahrenheit

display

temperature

（℉）

Fahrenheit

（℉）

Celsius

（℃）

32/33 32 0 55/56 55.4 13 79/80 78.8 26
34/35 33.8 1 57/58 57.2 14 81 80.6 27

36 35.6 2 59/60 59 15 82/83 82.4 28
37/38 37.4 3 61/62 60.8 16 84/85 84.2 29
39/40 39.2 4 63 62.6 17 86/87 86 30
41/42 41 5 64/65 64.4 18 88/89 87.8 31
43/44 42.8 6 66/67 66.2 19 90 89.6 32

45 44.6 7 68/69 68 20 91/92 91.4 33
46/47 46.4 8 70/71 69.8 21 93/94 93.2 34
48/49 48.2 9 72 71.6 22 95/96 95 35
50/51 50 10 73/74 73.4 23 97/98 96.8 36
52/53 51.8 11 75/76 75.2 24 99 98.6 37

54 53.6 12 77/78 77 25

Fahrenheit

display

temperature

（℉）

Fahrenheit

（℉）

Celsius

（℃）

Fahrenheit

display

temperature

（℉）

Fahrenheit

（℉）

Celsius

（℃）

Fahrenheit

display

temperature

（℉）

Fahrenheit

（℉）

Celsius

（℃）

61 60.8 16 69/70 69.8 21 78/79 78.8 26
62/63 62.6 17 71/72 71.6 22 80/81 80.6 27
64/65 64.4 18 73/74 73.4 23 82/83 82.4 28
66/67 66.2 19 75/76 75.2 24 84/85 84.2 29

68 68 20 77 77 25 86 86 30

Additional refrigerant charging amount for R22, R407C, R410A and R134a

Diameter of connection pipe Outdoor unit throttle

Liquid pipe(mm) Gas pipe(mm) Cooling only(g/m) Cooling and heating(g/m)

Ф6 Ф9.5 or Ф12 15 20

Ф6 or Ф9.5 Ф16 or Ф19 15 20

Ф12 Ф19 or Ф22.2 30 120
Ф16 Ф25.4 or Ф31.8 60 120
Ф19 / 250 250

Ф22.2 / 350 350

● When the length of connection pipe is above 5m, add refrigerant according to the prolonged length of liquid pipe. The additional
refrigerant charging amount per meter is different according to the diameter of liquid pipe. See the following sheet.

● Additional refrigerant charging amount = prolonged length of liquid pipe X additional refrigerant charging amount per meter

82

Service Manual

F:Inspection

● Check the quality of expanding port. If there is any blemish, expand the
port again according to the steps above.

The length is equal

Improper expanding

leaning

damaged

surface

crack uneven

thickness

Smooth surface

Downwards

Pipe

Shaper

Union pipe

Pipe

Expander

Hard
mold

Pipe

Pipe

Pipe cutter

Leaning Uneven Burr

Improper pipe expanding is the main cause of refrigerant leakage.Please
expand the pipe according to the following steps:

A:Cut the pip

● Conrm the pipe length according to the distance of indoor unit and outdoor unit.

● Cut the required pipe with pipe cutter.

B:Remove the burrs

● Remove the burrs with shaper and prevent the burrs from getting into the pipe.

C:Put on suitable insulating pipe

D:Put on the union nut

● Remove the union nut on the indoor connection pipe and outdoor valve; install

the union nut on the pipe.

E:Expand the port

● Expand the port with expander.

● "A" is different according to the diameter, please refer to the sheet below:

Outer diameter(mm)

A(mm)

Max Min

Ф6 - 6.35 (1/4") 1.3 0.7

Ф9.52 (3/8”) 1.6 1.0
Ф12 - 12.70 (1/2”) 1.8 1.0
Ф16 - 15.88 (5/8”) 2.4 2.2

Appendix 3: Pipe Expanding Method

Note:

Note:

83

Service Manual

Appendix 4: List of Resistance for Temperature Sensor

Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K)

Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ)

-19 138.1 20 18.75 59 3.848 98 1.071

-18 128.6 21 17.93 60 3.711 99 1.039

-17 121.6 22 17.14 61 3.579 100 1.009

-16 115 23 16.39 62 3.454 101 0.98

-15 108.7 24 15.68 63 3.333 102 0.952

-14 102.9 25 15 64 3.217 103 0.925

-13 97.4 26 14.36 65 3.105 104 0.898

-12 92.22 27 13.74 66 2.998 105 0.873

-11 87.35 28 13.16 67 2.896 106 0.848

-10 82.75 29 12.6 68 2.797 107 0.825

-9 78.43 30 12.07 69 2.702 108 0.802

-8 74.35 31 11.57 70 2.611 109 0.779

-7 70.5 32 11.09 71 2.523 110 0.758

-6 66.88 33 10.63 72 2.439 111 0.737

-5 63.46 34 10.2 73 2.358 112 0.717

-4 60.23 35 9.779 74 2.28 113 0.697

-3 57.18 36 9.382 75 2.206 114 0.678

-2 54.31 37 9.003 76 2.133 115 0.66

-1 51.59 38 8.642 77 2.064 116 0.642

0 49.02 39 8.297 78 1.997 117 0.625

1 46.6 40 7.967 79 1.933 118 0.608

2 44.31 41 7.653 80 1.871 119 0.592

3 42.14 42 7.352 81 1.811 120 0.577

4 40.09 43 7.065 82 1.754 121 0.561

5 38.15 44 6.791 83 1.699 122 0.547

6 36.32 45 6.529 84 1.645 123 0.532

7 34.58 46 6.278 85 1.594 124 0.519

8 32.94 47 6.038 86 1.544 125 0.505

9 31.38 48 5.809 87 1.497 126 0.492

10 29.9 49 5.589 88 1.451 127 0.48

11 28.51 50 5.379 89 1.408 128 0.467

12 27.18 51 5.197 90 1.363 129 0.456

13 25.92 52 4.986 91 1.322 130 0.444

14 24.73 53 4.802 92 1.282 131 0.433

15 23.6 54 4.625 93 1.244 132 0.422

16 22.53 55 4.456 94 1.207 133 0.412

17 21.51 56 4.294 95 1.171 134 0.401

18 20.54 57 4.139 96 1.136 135 0.391

19 19.63 58 3.99 97 1.103 136 0.382

84

Service Manual

Resistance Table of Tube Temperature Sensors for Outdoor and Indoor (20K)

Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ)

-19 181.4 20 25.01 59 5.13 98 1.427

-18 171.4 21 23.9 60 4.948 99 1.386

-17 162.1 22 22.85 61 4.773 100 1.346

-16 153.3 23 21.85 62 4.605 101 1.307

-15 145 24 20.9 63 4.443 102 1.269

-14 137.2 25 20 64 4.289 103 1.233

-13 129.9 26 19.14 65 4.14 104 1.198

-12 123 27 18.13 66 3.998 105 1.164

-11 116.5 28 17.55 67 3.861 106 1.131

-10 110.3 29 16.8 68 3.729 107 1.099

-9 104.6 30 16.1 69 3.603 108 1.069

-8 99.13 31 15.43 70 3.481 109 1.039

-7 94 32 14.79 71 3.364 110 1.01

-6 89.17 33 14.18 72 3.252 111 0.983

-5 84.61 34 13.59 73 3.144 112 0.956

-4 80.31 35 13.04 74 3.04 113 0.93

-3 76.24 36 12.51 75 2.94 114 0.904

-2 72.41 37 12 76 2.844 115 0.88

-1 68.79 38 11.52 77 2.752 116 0.856

0 65.37 39 11.06 78 2.663 117 0.833

1 62.13 40 10.62 79 2.577 118 0.811

2 59.08 41 10.2 80 2.495 119 0.77

3 56.19 42 9.803 81 2.415 120 0.769

4 53.46 43 9.42 82 2.339 121 0.746

5 50.87 44 9.054 83 2.265 122 0.729

6 48.42 45 8.705 84 2.194 123 0.71

7 46.11 46 8.37 85 2.125 124 0.692

8 43.92 47 8.051 86 2.059 125 0.674

9 41.84 48 7.745 87 1.996 126 0.658

10 39.87 49 7.453 88 1.934 127 0.64

11 38.01 50 7.173 89 1.875 128 0.623

12 36.24 51 6.905 90 1.818 129 0.607

13 34.57 52 6.648 91 1.736 130 0.592

14 32.98 53 6.403 92 1.71 131 0.577

15 31.47 54 6.167 93 1.658 132 0.563

16 30.04 55 5.942 94 1.609 133 0.549

17 28.68 56 5.726 95 1.561 134 0.535

18 27.39 57 5.519 96 1.515 135 0.521

19 26.17 58 5.32 97 1.47 136 0.509

85

Service Manual

Resistance Table of Discharge Temperature Sensor for Outdoor (50K)

Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ)

-29 853.5 10 98 49 18.34 88 4.75

-28 799.8 11 93.42 50 17.65 89 4.61

-27 750 12 89.07 51 16.99 90 4.47

-26 703.8 13 84.95 52 16.36 91 4.33

-25 660.8 14 81.05 53 15.75 92 4.20

-24 620.8 15 77.35 54 15.17 93 4.08

-23 580.6 16 73.83 55 14.62 94 3.96

-22 548.9 17 70.5 56 14.09 95 3.84

-21 516.6 18 67.34 57 13.58 96 3.73

-20 486.5 19 64.33 58 13.09 97 3.62

-19 458.3 20 61.48 59 12.62 98 3.51

-18 432 21 58.77 60 12.17 99 3.41

-17 407.4 22 56.19 61 11.74 100 3.32

-16 384.5 23 53.74 62 11.32 101 3.22

-15 362.9 24 51.41 63 10.93 102 3.13

-14 342.8 25 49.19 64 10.54 103 3.04

-13 323.9 26 47.08 65 10.18 104 2.96

-12 306.2 27 45.07 66 9.83 105 2.87

-11 289.6 28 43.16 67 9.49 106 2.79

-10 274 29 41.34 68 9.17 107 2.72

-9 259.3 30 39.61 69 8.85 108 2.64

-8 245.6 31 37.96 70 8.56 109 2.57

-7 232.6 32 36.38 71 8.27 110 2.50

-6 220.5 33 34.88 72 7.99 111 2.43

-5 209 34 33.45 73 7.73 112 2.37

-4 198.3 35 32.09 74 7.47 113 2.30

-3 199.1 36 30.79 75 7.22 114 2.24

-2 178.5 37 29.54 76 7.00 115 2.18

-1 169.5 38 28.36 77 6.76 116 2.12

0 161 39 27.23 78 6.54 117 2.07

1 153 40 26.15 79 6.33 118 2.02

2 145.4 41 25.11 80 6.13 119 1.96

3 138.3 42 24.13 81 5.93 120 1.91

4 131.5 43 23.19 82 5.75 121 1.86

5 125.1 44 22.29 83 5.57 122 1.82

6 119.1 45 21.43 84 5.39 123 1.77

7 113.4 46 20.6 85 5.22 124 1.73

8 108 47 19.81 86 5.06 125 1.68

9 102.8 48 19.06 87 4.90 126 1.64

86