AS-09UR4SVNVG1（UP1）

AS-12UR4SVNVG1（UP1）

Type of contents

1. OPERATION RANGE

2. SPECIFICATION

3. INSTALLATION

4. ELECTRICAL DATA

5. CONTROL MODE

6. TROUBLE SHOOTING

7. CHECKING COMPONENTS

NOTE: The figure、size and parameter of the product may not be identical with the service manual, please take the actual product as the standard.

1 .

.

O P E R A T I

I

N G R A

N

G

E

COOLING

HEATING

Temperature Indoor Air Intake Temp.

Maximum 32

℃

D.B./23

℃

W.B.

Minimum

Maximum

Minimum

21

℃

D.B./15

℃

W.B.

27

℃

D.B./18

℃

W.B.

20

℃

D.B/

≤15 W.B

Outdoor Air Intake Temp

43

℃

D.B./26

℃

W.B.

21

℃

D.B./15

℃

W.B.

24

℃

D.B./18

℃

W.B.

-7

℃

D.B./ -8

℃

W.B.

1

2 .

.

S P E C I

I

F I

I

C

A

T I

I O

N

S

2-1. Unit specifications

Model No.

Type

Ratings

Cooling Capacity

Heating Capacity

Rated Input-Cooling

Rated Input-Heating

Moisture Removal

Air Circulation

EER for Cooling

COP for Heating

Energy Class

Energy Class

Refrigerant

Refrigerant charge volume

W

W

W

W

L/H.r m

3

/h

W/W

W/W

Cooling

Heatling

Indoor Unit Noise Level

Outdoor Unit Noise Level

Power Supply

Voltage, Frequency, Phase g

High(dB (A))

Low(dB (A)) dB (A)

V

Cooling (A)

Heating (A) Rated Current

System

Compressor type

Compressor Model No.

Compressor MFG

Expansion Device

Evaporator

Condenser

Connecting Pipe Diameter

Liquid Pipe inch

Gas Pipe

Features

Display on Front Panel

LCD Wireless Remote Controller

Removable and washable Panel

Washable PP Filter inch

24 Hours Timer

3 Speed and Auto Indoor Fan Control

Vertical Auto Swing Louver

AS-09UR4SVNVG1(UP1) AS-12UR4SVNVG1(UP1)

T1, H/P, INVERTER T1, H/P, INVERTER

2600(1200-3000) 3200(1200-3500)

2900(1200-3500) 3400(1200-4000)

810(300-1450) 997(300-1550)

803(300-1500) 942(300-1600)

0.9 1.5

500 500

3.21

3.61

3.21

3.61

A A

A A

R410A R410A

580 790

39 39

34 34

52 52

220-240V~,50Hz,1P 220-240V~,50Hz,1P

3.8 4.5

3.7 4.1

Rotary Rotary

39A23VPM&5JKE 39A23VPM&5JKE

RECHI RECHI

Capillary Capillary

Copper tube and Aluminum Fin Copper tube and Aluminum Fin

Copper tube and Aluminum Fin Copper tube and Aluminum Fin

1/4 1/4

3/8 3/8

LED LED

Yes Yes

Yes Yes

Yes Yes

Yes Yes

Yes Yes

Yes Yes

2

2 .

.

S P E C I

I

F I

I

C

A

T I

I O

N

S

Manual Adjustable Horizontal Swing Louver Yes Yes

Sleep Operation

Smart Function

Yes Yes

Yes Yes

Dimmer

Super Function

Yes Yes

Yes Yes

Compressor Indicator

Yes Yes

Auto Restart

Other

Yes Yes

750×250×190 750×250×190

Net Dimensions

WxHxD (mm)

Net Weight (Kg)

Indoor Unit

Outdoor Unit

Indoor Unit

Outdoor Unit

715×482×240 715×482×240

8 8

26 28

800×325×245 800×325×245

Packing Dimensions WxHxD

(mm)

Indoor Unit

Outdoor Unit

830×530×315 830×530×315

Gross Weight (Kg)

Indoor Unit

Outdoor Unit

Loading Capacity (20'/40'/40'HC )

Test Standard

Approvals

9 9

28 30

148/298/350 148/298/350

EN 14511 EN 14511

CE CE

NOTE :Test conditions：

Cooling : Indoor: DB27℃/ WB19℃ Outdoor: DB35℃/ WB24℃

Heating: Indoor: DB20℃/ WB15℃ Outdoor: DB7℃/ WB 6℃

2-2. Major component specifications

2-2-1.INDOOR FAN MOTOR

ELECTRIC

PERFORMANCE

Motor model

Rated power source

Fan capacitor

PARAMETER

K1B310114

208~240V 50HZ/60HZ

1.5μF/450V

Poles 4

Rated load output(W) 18W

Ambient temperature(℃) -5℃～+43℃.

3

2 .

.

S P E C I

I

F I

I

C

A

T I

I O

N

S

2-2-2 OUTDOOR FAN MOTOR

ELECTRIC PERFORMANCE PARAMETER

Motor model

Rated power source

DG13Z1-39

208~240V 50Hz

Fan capacitor 1.5μF/450V

Poles ---

Rated load output(W) 25W

Ambient temperature(℃) -5℃～+43℃.

2-2-3. COMPRESSOR

ELECTRIC PERFORMANCE PARAMETER

Compressor model

Compressor type

Motor

Motor type.

Starting type

39A23VPM&5JKE

Rotary

Direct current brushless motor

Direct current brushless inverter starting

Winding resistance（at 25℃） U-V（or V-W）:2.550Ω±7%；W-U: 2.60Ω±7%

Number of cylinder 1

Oil type

Oil charge (cc)

Zegles RB68EP or equivalent

370±10

Input power(W)

Current (A)

910±5%

4.3

Ambient temperature(℃) -5℃～+43℃.

2-3. Other component specifications

2-3-1. LOUVER MOTOR

ELECTRIC

PARAMETER

PERFORMANCE

Stepper Motor model DG13B1-01

Voltage(DC) 12V

Number of phase

Drive mode

4

1-2 phase excitation unipolar drive

Resistance per phase 200Ω±7%

Relative humidity(RH) 45%～85%

Temperature range(℃) -10℃～+40℃.

4

3 .

.

I

I

N S T A L L

A

T I

I O N

1、How to choose an air conditioner： a. Choice for reference: 150-170W/㎡ for average rooms; b. Choice for reference: 160-200W/㎡ for small size offices; c. Choice for reference: 220-350W/㎡ for restaurants; d. Choice for reference: 200-300W/㎡ for entertaining venues; e. Choice for reference: 220-280W/㎡ for the top floor.

Note:1W = 3.412btu.

2. Indoor Unit:

For indoor unit installation, the distance between its top and the ceiling shall not be less than 10 cm -20 cm, and the distance from the ground should be between

2m to 2.6m. Also the wallboard must be smooth and straight, with its supporting force of not less than 60 kg.

The location for installing the indoor unit shall be far away from heat source, the space between it and the door or window should exceed 0.6m

3. Outdoor Unit:

The air conditioner outdoor unit should not occupy public sidewalks, the distance between the mounting bracket installed along the road (on condition that the mounting bracket does not affect the public access, it can be installed horizontally) and the ground must exceed 2.5m. Also we shall remember that: a. the air flow must run freely. b. we should protect famous ancient buildings during installation. c. the installation does not affect the traffic.

The distance between air outlet of outdoor unit and the opposite object should be more than 1 meter, otherwise the machine would stop running because of overload by heat yield failure.

If the outdoor unit was opposite the resident's door or window, you should install the machine as far as possible away from the adjacent doors windows and plants, and the distance shall not be less than the following values: for the rated cooling capacity not more than 4.5KW, the distance should be 3m.; for the rated cooling capacity more than 4.5KW, the distance should be 4m.

It should remember to avoid installing at places where the natural environment is harsh, such as heavy fumes and wind, direct sunlight or high-temperature and heat, together with the place where children easily reach.

4. The Unit:

When installing the air conditioner, the outdoor unit should be below the indoor unit so as to facilitate circle of refrigerant and refrigeration oil .(1)The height difference between wall mounted indoor unit and the outdoor unit is generally not more than 7 meters. (2)The connection pipe can't exceed 5 meters, and the longest is 15 meters. When the length exceeds 5 meters, 20g fluoride is required to be added for each exceeding 1m.

6

3 .

.

I

I

N S T A L L

A

T I

I O N

5.Outdoor unit feet distance:

7

4 .

.

E L E C T R I

I

C A L D A T

A

4-1.Electrical wiring diagrams

4-1-1.INDOOR

7

4 .

.

E L E C T R I

I

C A L D A T

A

4-1-2.OUTDOOR

8

5 .

.

C O N T R O

L

M

O

D

E L

5-1. Major general technical parameters

5-1-1 Conditionings for operation: Ambient temperatures: (-15 - +45 ℃), relative humidity (45 -

85%).

5-1-2 Remote receiver distance: 8 m.

5-1-3 Remote receiver angle: Less than 80 degrees.

5-1-4 Temperature control accuracy: ±1℃.

5-1-5 Time error: Less than 1%.

5-1-6 The power supply for the air conditioner is a.c 220V, 50Hz, with its fluctuation in the range of (198～264V).

5-2. Functions of the controller

5-2-1 Display panel

I. Control functions of the remote controller (See operating and installation manual)

II. Display of the indoor unit Information on the screen:

Displaying Scheme:

Temperature display：Display set temperature or indoor temperature , and display fault code in trouble indicating. An error code is displayed according to the signal from the indoor CPU. The error code will flash for 5 seconds while displayed.

Running indicator：It is on during operation. It flashes in 10s after the sleep modehas been setted.

TIMER indicator：When the timer mode works, the indicator will be lighted.

Sleep indicator：When the sleep mode works, the indicator will be lighted.

Compressor indicator：It lights up when compressor is running.

Remote control receiver： This section receives signals from the remote controller.

5-3. Control function

5-3-1 Emergency switch

5-3-1-1 Press the emergency switch once to turn on the machine and press it again to turn off the machine; in the automatic mode, the indoor control temperature is set at 24℃ with the indoor fan speed setting is automatic and the flaps sweep.

5-3-1-2 When the machine is turned on (in the OFF condition), press and hold the emergency switch for 5 seconds, the buzzer rings for 3 times and the controller starts in the trial operation.

The trial operation is the forced cooling with the indoor fan speed being set at high speeds, the flaps sweeping and the air conditioner’s operation is irrelevant with room temperatures.

18

5 .

.

C O N T R O

L

M

O

D

E L

5-3-1-3 If a remote signal has been received during the emergency run, the machine will operate upon the command of such a remote signal.

5-3-2 Operator-machine communication

5-3-2-1 The air conditioner has a thermal sensor to detect room temperatures. Some remote controller is equipped with a thermal sensor (Such remote controller has the function of man-machine communication. For details, refer to the section for the remote controller). In addition, there is a thermal sensor at the indoor air inlet. In the case where the remote controller is equipped with a thermal sensor, the default setting for room temperatures is subject to the detection by the remote controller. The remote controller detects the room temperature once every 20 seconds, and automatically transmits a signal at an interval of 3 minutes or when a change in the room temperature is detected. If the indoor control unit has not received a remote signal for more than 10 minutes, the control function will be automatically switched over to the thermal sensor on the indoor unit.

5-3-2-2 Neither the turning on nor turning off operation will cancel the operator-machine communication function.

5-3-2-3 In default, the air conditioner is set to start the operator-machine communication function.

5-3-3 Timer function

5-3-3-1 Timer on: When set to start in a time by the remote controller, the air conditioner starts in the timer on condition. When the set time is up, the air conditioner will turn on and operates in the preset conditions after receiving a signal from the remote controller. If the air conditioner has not received a signal from the remote controller when the set time is up, it will automatically start and operate in the preset conditions.

5-3-3-2 Timer off: When set to stop in a set time by the remote controller, the air conditioner will start in the timer off condition. When the set time is up, the air conditioner will turn off after receiving a signal from the remote controller. If the air conditioner has not received a signal from the remote controller when the set time is up, it will turn off automatically.

5-3-3-3 Neither the turning on nor turning off operation will cancel the timer function (Some remote controller has a simple one-hour timer off function and excludes this operation).

5-3-4 Sleep

5-3-4-1 In the heating, cooling or dehumidifying mode, press the “Sleep” button on the remote

19

5 .

.

C O N T R O

L

M

O

D

E L

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

5-3-4-2 According to the different needs, there are four different sleep modes to choose.

During the time of sleep mode, the set temperature will change automatically.

5-3-4-3 In default, the setting is to cancel the sleep function. Turning off the unit will also cancel the sleep function.

5-3-4-4 The sleep function is valid for 8 hours. The air conditioner will turns off and cancel the sleep function after the sleep function works for 8 hours.

5-3-5 High efficient run function (This function is invalid)

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

5-3-6 Automatic run (SMART) mode

If there is no man-machine communication function after the unit is started, the indoor fan operates at the ultra-low flowrate for 20 seconds before selecting a run mode; the room temperatures are detected during this period for the selection of a run mode.

In the first operation:

T room

– T set

＞

3℃， it starts in the cooling mode;

-3℃≤T room

– T set

≤3℃， it starts in the ventilation run mode;

T room

– T set

＜ -3℃, it starts in the heating mode.

After the first run in the cooling or heating mode, the mode will be changed as the following:

T room

– T set

＞

3℃, it will be changed to the cooling mode;

T room

– T set

＜

-3℃, it will be changed to the heating mode; c. When these conditions are not met, it will remain in the previous run mode.

When the temperature setting is changed, re-judgment will be made for the run mode

20

5 .

.

C O N T R O

L

M

O

D

E L

according to the descriptions mentioned above; when the compressor is halted for 10 minutes, the re-judgment will be made for the run mode.

5-3-6-1 Switch between the cooling and heating mode:

T ambient t set

+3 t set t set

-3

Cooling Heating mode

5-3-6-2 Cooling

→heating turnover operation

Cooling

Cooling

→heating: the compressor stops; 50 s later the 4-way valve is activated and 3 minutes more the compressor turns on.

Heating

→cooling: the compressor stops, 50 s later the 4-way valve is interrupted and 3 minutes more the compressor turns on.

5-3-6-3 There is temperature compensation during the auto-run, which is same as cooling and heating.

5-3-7 Cooling-run mode

5-3-7-1 Temperature compensation

Principle for compensation: The compensation is available only if the proper sensor is used and it is not available when it is subject to the sensor on the remote controller.

5-3-7-2 Outdoor Fan

The outdoor fan’s speeds are divided into two levels which can be changed over according to outdoor ambient temperatures.

When operating at a fixed frequency, the outdoor fan is forced to operate at the high speed.

5-3-7-3 Indoor fan

When the fan speed is set at the high, medium and low fan speeds, the fan runs at a preset speed. When the fan speed setting is automatic, the fan speed is set based on the difference

21

5 .

.

C O N T R O

L

M

O

D

E L

in room temperatures.

T room

-T set

T room

-T set

≤2

0

C

2

0

C

<T room

-T set

<4

0

C

T room

-T set

≥4

0

C

Indoor fan speed

Low

Medium

High

5-3-7-4 Prevention against condensation and insufficient heat exchange at the low indoor fan speed.

When the indoor fan speed is set at the low fan speed, the compressor’s power is restricted as in the low temperature cooling.

5-3-7-5 4-way valve

State: It is interrupted in cooling.

Switchover: When initially powered on for cooling, the 4-way valve is interrupted immediately.

When the heating is changed to the cooling, it needs an interval of 50 seconds for the 4-way valve to change over from being activated to being interrupted.

5-3-8 Heating-run mode

5-3-8-1 Temperature compensation

Principle for compensation: The compensation is available only if the proper sensor is used and it is not available when it is subject to the sensor on the remote controller or line controller.

5-3-8-2 Indoor fan

The fan speed is set at the high, medium or low fan speed, it operates at a preset speed (in the cold air prevention, it is forced to run at the ultra-low flowrate or stop).

When the fan speed is set in the auto-run, the fan speed setting is made according to the room temperature differences (except for the cold air prevention).

T set

-T room

T set

-T room

≤2

0

C

2

0

C

<T set

-T room

<4

0

C

T set

-T room

≥4

0

C

Indoor Fan Speed

Low

Medium

High

5-3-8-3 Cold air prevention

In the heating-run, to prevent the indoor fan from blowing cold air, the indoor fan speed is different from the set speed after turning on air-conditioner.

5-3-8-4 Residual heat blowing off

When the compressor is turned off in the heating run, the indoor fan does not stop at once, but until the indoor evaporator temperature is below 23

0

C, but for 30 seconds at the latest.

22

5 .

.

C O N T R O

L

M

O

D

E L

5-3-8-5 Outdoor fan

The outdoor fan speeds are divided into three levels which can be changed over according to outdoor ambient temperatures.

5-3-8-6 4-way valve

State: It is electrified in heating.

Switchover: When initially powered on for heating, the 4-way valve is activated immediately.

In the change from cooling to heating, it needs an interval of 50 seconds for the 4-way valve to change over from being interrupted to being activated.

5-3-9 Dehumidifying mode

The dehumidifying mode is illustrated as follows:

Dehumidifying area I: Operation at the frequency in the range (30–80 Hz) according to

Δt

(T indoor ambient

-T set

).

Δt(℃) f(Hz)

0 30

0.5 30

1 40

1.5 50

≥2 60

Efficient 80

23

5 .

.

C O N T R O

L

M

O

D

E L

Dehumidifying area II: The compressor stops for 5 minutes and operators for 5 minutes at the lowest frequency.

Dehumidifying area III: The compressor stops.

5-3-10 Air Blowing mode

The outdoor unit does not work while the indoor fan runs with the fan speed selectable at the auto, low, medium and high speeds.

When being auto, the fan speed is determined in the cooling mode (with the temperature setting of 24

0

C in default).

The high, medium and low fan speeds are same with that in the cooling mode.

5-3-11 Compressor operating state indication

When the compressor is in operation, The 3 LED indicator lights on the control panel of the outdoor unit indicates the causes of the restriction on the compressor’s current operating frequency.

Symbols for indicator light:: ★: ON

Ο: flashing ×: OFF

LED2 LED3 operating frequency

1

Ο Ο Ο

Normal frequency ascent and descent with no restriction on the frequency

2

× ×

★

Frequency descent or restriction on frequency ascent caused by over current

3

×

★ ★ Frequency descent or restriction on frequency ascent caused by anti-freeze in cooling or overload control in heating

4 ★

×

★ Frequency descent or restriction on frequency ascent caused by too high compressor discharge temperature

5

×

★

×

Restriction on maximum operation operating frequency caused by too low voltage on the supply circuit

6

★ ★ ★

Operating at a fixed frequency (when in a capacity measurement or forced operation at a fixed frequency.)

★

× ×

Communication frequency drops. 8

24

5 .

.

C O N T R O

L

M

O

D

E L

5-3-12 Special notes

5-3-12-1 The outdoor unit of this model is electrified by the indoor unit control. After the system starts to operate, the indoor unit supplies the outdoor unit (except for the ventilation mode). If the EEPROM data is read correctly after turning on the power, the indoor unit’s beeper rings one time, or if it is not the case the beeper will ring two times and the system cannot be started.

Normally, when the indoor unit receives a control signal from the remote controller and emergency button, the system will be started and the beeper will ring two times, and in other cases, the beeper will ring one time.

5-3-12-2 This model can achieve the power interruption restoration function by the selection of the EEPROM data. The power interruption restoration is applied only for the basic functions

(turning ON and OFF, setting temperatures, modes, fan speeds and flap’s position) and not for other special functions such as sleep, timing and power-saving run.

25

6 .

.

T R O U B L E S H O O T I

I N G

6-1. Trouble alarm

Trouble List

6

9

10

11

12

13

14

18

19

20

22

23

★

★

×

★

×

★

×

Ο

Ο

×

×

★

6-1-1 Indication on the outdoor unit

When the compressor is interrupted, the outdoor LEDs are used to indicate the troubles listed below:

Symbols for indicator lights: ★: ON

Ο: flashing ×: OFF

LED1 LED2 LED3

1

2

3

4

×

×

×

★

×

×

★

×

×

×

×

Normal

★

Unused

Troubles

Outdoor heat exchanger temperature sensor be protected

Compressor temperature sensor short-circuited, open

5

★

× circuited or the corresponding test circuit in trouble

★

Outdoor heat exchanger temperature sensor

★

×

Ο

Ο

Ο

Ο

★

★

★

Ο

Ο

× short-circuited, open circuited or the corresponding test circuit in trouble

×

Outdoor atmosphere temperature sensor short-circuited, open circuited or the corresponding test circuit in trouble

Ο

Signal communication abnormal (indoor – outdoor)

×

Power module (IPM)protection

★

Maximum current control

×

Current overload control

★

Compressor discharge temperature too high

Ο

Over and under-voltage control

Ο

Compressor housing temperature too high

★

Outdoor memory in trouble

Ο

Indoor heat exchanger temperature sensor be protected

×

DC compressor fails to start

Ο

DC compressor out of step

6-1-2 Indication by the indoor unit

Press the high power for 4 times in a row and the trouble codes listed below will be displayed.

0 No trouble

1 Outdoor coil temperature sensor in 18 trouble

2 Compressor temperature sensor in trouble

16

19

Anti-freeze or overload control

DC compressor fails to start

DC compressor out of step

3 Voltage transformer in trouble

4 Current transformer in trouble

6 Over and under-voltage control 33 Room temperature sensor in trouble

26

6 .

.

T R O U B L E S H O O T I

I N G

8 Current overload control

9 Maximum current control 39

40 outdoor unit and driver unit)

11 Outdoor EEPROM in trouble

13 Compressor exhaust temperature too high control

14 Outdoor ambient temperature sensor in trouble

41 control

27

36 trouble

Communication between the indoor and outdoor in trouble

Indoor fan motor operation abnormal

Grid protection alarm (cabinet type)

Detecting failures by zero-crossing

6 .

.

T R O U B L E S H O O T I

I N G

7-2. Service flow chart

Switch on the power supply

Does DLED screen display normally?

No

Is the fuse(F01,

3.15A/250V) blown?

Yes

Yes

No

Yes

Are the wires poorly

Check all wires are connected?

No

Check the first and secondary voltage.

The first voltage:220V

The secondary voltage:

*C15:12V

CN4(1,2terminal):5V connected correctly

Yes

Replace the control board

No

After replacing the Yes

Display board display board, Is there trouble still trouble?

No

Indoor control board is faulty.

Replace it.

Does it receive the remote controller signal?

Yes

No

Is the remote controller in good condition

Yes

After replacing the display board.

No

Yes

Replace the indoor board.

Is there still trouble?

Yes

Is indoor control board short circuit?

No

No

Check operation

Check and find short circuit or open circuit among other components such as transformer or fan motor

Yes

Replace the indoor

No

Start up self-test function

Check the result

Replace the battery press

ACL button.

Retry remote operation.

Display board problem

28

6 .

.

T R O U B L E S H O O T I

I N G

Error code 33

Indoor temperature sensor

Error code 34

Indoor Coil sensor trouble

Error code 14

Outdoor temperature sensor trouble

Error code 1

Outdoor coil sensor trouble

Take out from

CN6 ,Measure the resistance of thermistor

Take out from

CN3 ,Meaure the resistance of thermistor

Does the unit exit hot protector

Measure resistance of the sensor of

CN15(Yellow)

Measure resistance of the sensor of

CN14(Black)

Does the resistance of thermistor have the characteristics on part 6-3

No

Replace the thermistor

Does the resistance of thermistor have the characteristic on part 6-3 (SENSOR

PARAMETER)

No

Replace the thermistor

Yes

Yes

Replace the indoor pcb board

Replace the outdoor board

Error code 2, 13

Compressor over heat protection

Error code 6

Voltage of power supply is abnormal

Is the surface of compressor very hot?

Yes

Normal protecton

Is the voltage of power supply normal of AC

198~253V?

No

Normal protection

Yes

No

Is the resistance of compressor discharge sensor correct?

Yes

No

Replace it Outdoor IPM board fault, replace it.

Outdoor control board faulty, replace it

29

7 .

.

T R O U B L E S H O O T I

I N G

Error code 39

Indoor fan motor trouble

Set the air conditioner operate

in fan mode

Is indoor fan motor running?

no

Does the socket CN1(1-3) of indoor control board have power input yes

Is resistance of main winding

0?(short circuit) or

~

?(open circuit)?

no

Insert screwdriver into to rotate indoor fan motor slowly for 1 revolution or over, and measure voltage CN2(1-3) yes

Does fan motor stop with the remote controller no no

Indoor control board faulty and replace it yes

Replace the indoor fan motor yes

Does voltage repeat DC 0V and

DC 5V?

no yes

Check the connector of indoor motor

30

sensor trouble

7 .

.

T R O U B L E S H O O T I

I N G

Error code 36

Communication trouble

Are all the lead wires connected between indoor and outdoor unit?

yes

Is there power output between indoor T/B 1 and 2 AC220V?

And "S" of indoor terminal block

DC24V?

yes

Does the power indicator(LED) of outdoor control board(PCB) light up?

no no no

Connect the indoor and outdoor unit again according to the wiring diagram

Indoor control board in trouble yes

Replace the outdoor IPM board and start up again

Indoor control board fault, replace it.

no

Is the system in good condition?

Display board fault, replace it no

Is the system in good condition?

yes

Outdoor IPM board trouble yes

Check operation

Is the 3.15A fuse(F01) of outdoor

PCB blown?

no yes

Replace fuse

Is the 3.15A fuse(F02) of outdoor

PCB blown?

no

Is the 15A fuse(F03) of outdoor PCB blown?

no

Is there power input between 1 and 2 on terminal block of outdoor unit?

no yes yes

Is unsafety voltage part of outdoor control board short circuit?(such as fan motor, 4-way valve winding) yes

Outdoor control board trouble and replace it.

yes no

Normal protection and replace fuse

The control system of outdoor unit has short circuit trouble, check the connection wire,outdoor control board,

IPM, rectifier and electrolyse capacitor

Connection wire trouble and check

Replace the trouble unit yes

Connection wire trouble and check

Is there power output between 1 and

2 on terminal block of indoor unit?

no

Is there power output(AC220V) of indoor unit between "N out" and "L out"?

no

Indoor control board and replace it yes

Connection wire trouble and check

31

7 .

.

C H E C K I

I

N G C O M P O N E

N

T S

7-1. Check refrigerant system

TEST SYSTEM FLOW

Conditions:

①

Compressor is running.

② The air condition should be installed in good ventilation.

Tool: Pressure Gauge

Technique:

①

see

②

feel

③

test

SEE---Tube defrost.

FEEL---The difference tube temperature.

TEST--- Test pressure. cooling run heating run

Outdoor unit

Outdoor unit

Pressure gauge

Test system flow

Pressure gauge

32

7 .

.

C H E C K I

I

N G C O M P O N E

N

T S

Cooling mode

NO

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

The pressure on the high side.

The pressure on the low side.

The system wants refrigerant.The service people must be ration refrigerant (about 100g/ per)in the cooling mode fixed frequency .Is the low pressure rise ?

NO

The refrigerant system blocked.Please check the Capillary Tube( or electronic expansion valve)Is it blocked?

Recharge refrigerant after air purging with the vacuum pump.Does the low pressure nomal over again?

yes yes

Air remaining at the refrigerant system.

Recharge refrigerant .

NO

NO

If the pressure is close to static pressure?

yes

4-way valve collude or compressor exhaust very ebb.

yes

Unsolder the capillary tube

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

2

.

Check check valve and 4way valve.

Heating mode

NO

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

The pressure on the low side.

The system wants refrigerant.The service people must be ration refrigerant (about 100g/ per)in cooling mode fixed frequency state .Is the high pressure rise in heating mode?

NO

The pressure on the high side.

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

yes yes

Air remaining at the refrigerant system.

Recharge refrigerant

If the pressure is close to static pressure?

yes

4-way valve collude or compressor exhaust every ebb.

33

NO

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

yes

The capillary tube blocked.Unsolder the capillary tube ASS'Y.The

capillary tube1 and capillary tube2 is blown by N

2

.

NO

Check heat exchanger and

4-way valve.

7 .

.

C H E C K I

I

N G C O M P O N E

N

T S

7-2.Check parts unit

1. INDOOR FAN MOTOR

.MOTOR EXAMINE AND REPAIR

Circuit diagram

BROWN

Vc c

Vo ut

GND

BLACK

YELLOW

Test in resistance.

TOOL: Multimeter.

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

Test in voltage

TOOL: Multimeter.

Insert screwdriver into to rotate indoor fan motor slowly for 1 revolution or over,and measure voltage “BLACK” and “GND” on motor. The voltage repeat 0V

DC and 5V DC.

Notes:

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

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

3) Please don’t drop .Hurl or dump motor against hard material.Malfunction may not be observed at early stage after such shock.But it may be found later,This type of mishandling void our warranty.

2. OUTDOOR FAN MOTOR

MOTOR EXAMINE AND REPAIR

34

7 .

.

C H E C K I

I

N G C O M P O N E

N

T S

Test in resistance.

TOOL: Multimeter.

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

Notes:

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

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

3) Please don’t drop .Hurl or dump motor against hard material.Malfunction may not be observed at early stage after such shock.But it may be found later,This type of mishandling void our warranty.

3. COMPRESSOR

COMPRESSOR EXAMINE AND REPAIR.

Test in resistance.

TOOL: Multimeter.

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

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

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

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

3) Avoiding compressor running in reverse caused by connecting electrical wire incorrectly.

4) Warning! In case AC voltage is impressed to compressor, the compressor performance will be lowered because of its rotor magnetic force decreasing.

4. INDUCTANCE

Familiar error: 1) Sound abnormality 2) Insulation resistance disqualification.

5. FILTER

35

7 .

.

C H E C K I

I

N G C O M P O N E

N

T S

Test in resistance.

TOOL: Multimeter.

Test the resistance of “LOAD” port. The filter is fault if the resistance of winding

0(short circuit)or∞（open circuit）

6. STEPPER MOTOR

Test in resistance.

TOOL: Multimeter.

Test the resistance of winding. The stepper motor is fault if the resistance of winding 0(short circuit)or∞（open circuit）.

7-2-3. Check others

1. FUSE

Checking continuity of fuse on PCB ASS’Y.

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

Fuse

PCB Ass抷

Fig.1

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

36

7 .

.

C H E C K I

I

N G C O M P O N E

N

T S

Fuse

Fig.2

2. CAPACITOR

Remove the lead wires from the capacitor terminals, and then place a probe on the capacitor terminals as shown in Fig.3.Observe the deflection of the pointer, setting the resistance measuring range of the multimeter to the maximum value.

The capacitor is “good” if the pointer bounces to a great extent and then gradually returns to its original position.

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

Multimeter

Compressor motor capacitor

Fan motor capacitor

Fig.3

37