GE PRO AIR 107, PRO AIR I109, PRO AIR 109, PRO AIR I112, PRO AIR 218 Service Manual

g GE Consumer & Industrial Appliances

Service Manual & Installation Manual

Split System Air Conditioner

Model numbers:

PRO AIR 107
PRO AIR 109
PRO AIR 112
PRO AIR I109
PRO AIR I112
PRO AIR 218
GE AIR 326
GE AIR 428

—1—

Summary and features

Model Remark

PRO AIR 107 IN / PRO AIR 107 OUT

1Ph 230V 50Hz R410A

1

—2—

Model Remark

PRO AIR 109 IN / PRO AIR 109 OUT PRO AIR 112 IN / PRO AIR 112 OUT

PRO AIR I109 IN / PRO AIR I109 OUT PRO AIR I112 IN / PRO AIR I112 OUT

1Ph 230V 50Hz R410A

—3—

Model Remark

PRO AIR 218 IN / PRO AIR 218 OUT

1Ph 230V 50Hz R410A

—4—

Model Remark

GE AIR 326 IN1 / GE AIR 326 IN2 / GE AIR 326 OUT

1Ph 230V 50Hz R407C

—5—

Model Remark

GE AIR 428 IN / GE AIR 428 OUT

1Ph 230V 50Hz R407C

—6—

Technical and specifications

Model

PRO AIR 107 IN / PRO AIR 107 OUT PRO AIR 109 IN / PRO AIR 109 OUT

Function Cooling Heating Cooling Heating

Rated voltage 230V

Rated frequency 50Hz

Capacity (W) 2000 2200 2500 2600

Nominal power (W) 660 700 765 800

Max. power (W) 900 920 990 1050

Greatest currency (A) 4.1 4.3 4.8 5.5

Air flow (m3/h) 360 450

Dry capacity (L/h) 0.7 1.2

C.O.P/EER (W/W) 3.05 3.15 3.2 3.2

Model KFR-20G/NaA121-E KFR-25G/NaA121-E

Fan speed (r/min)(H/M/L) 1000/940/880 1160/1010/890

Output power (W) 8 14

Auxiliary electric heater power /

Fan capacitor 1

Fan motor running current 0.035 0.12

Fan type-piece

Axial flow fan－1

Diameter-length (mm) Φ97×583

Evaporator Aluminum fin-copper tube
Pipe diameter Φ7

Row-fin distance (mm) 2-1.4
Developed area of heat

exchanger (I×H×L)

580mm ×228.6mm×25.4mm

Swing motor model MP24GA

Motor power (W) 2

Fuse (A) PCB3.15A Transformer 0.2A
Noise (sound pressure level)

dB(A)

41/38/35

42/39/36

Noise (sound pressure level)
dB(A)

51/49/45

52/49/46

Outline dimension (W/D/H)
(mm)

770×180×250

Package dimension (W/D/H)
(mm)

855×270×336

Indoor

unit

Net weight/gross weight (kg) 8.5/12.5

2

—7—

Model

PRO AIR 107 IN / PRO AIR 107 OUT PRO AIR 109 IN / PRO AIR 109 OUT

Compressor type GK080PAD C-1RV096H1A

Compressor type Rotary type

Locked rotor current 17 17

Compressor running current 3.2 3.8

Compressor input power 682 810

Compressor overload model M RA12009-12026 M RA98635-9201

Throttling method Capillary

Starting mode Capacitor CBB65 (22.5uF/450VAC)
Working temperature range －7～43℃

Condenser Aluminum fin-copper tube
Pipe diameter Φ9.52

Row-fin distance (mm) 2-1.6 2-1.4

Developed area of heat exchanger
(I×H×L)

673×406×44 791×508×44

Fan motor speed (rpm) 950 830

Motor rated power (W) 20 30

Fan motor running current (A) 0.42 0.26
Fan capacitor (μf) 1.5 2

Fan type-piece /

Fan type-piece Axial flow fan -1
Fan diameter (mm) Φ320 Φ400

Defrosting method Auto

Climate type T1

Insulation class I

Waterproof level IP24

Maximum working pressure of
exhaust side (Mpa)

3.8

Maximum working pressure of
exhaust side (Mpa)

1.2

Noise（sound pressure level）
dB(A)

52 56

Noise (sound pressure level)
dB(A)

62 66

Outline dimension (W/D/H)(mm) 660×260×430 848×320 ×540
Package dimension (W/D/H)(mm) 765×350×500 878×360 ×600

Net weight/gross weight (kg) 25/29 30/34

Outdoor

unit

Refrigerant/refrigerant charge (kg) R410A /0.88 R410A /1.1

Length 4

Liquid pipe (mm) Φ6 Outer

diameter

Gas pipe (mm) Φ9.52

Height (m) 5

Connection pipe

Maximu
m
distance

Length (m) 10

—8—

Model PRO AIR 112 IN PRO AIR I109 IN

Function Cooling Heating Cooling Heating

Rated voltage 230V

Rated frequency 50Hz

Capacity (W) 3200 3400 2500 2700

Nominal power (W) 1060 1220 730 800

Max. power (W) 1390 1370 1246 1297

Greatest currency (A) 7.2 7.4 5.7 6
Air flow （m3/h） 450 450

Dry capacity (L/h) 1.2 1.2

C.O.P/EER (W/W) 3 2.8 3.4 3.4

Model KFR-32G/NaA121-E KFR-25G/NaA12F-E

Fan speed (r/min)(H/M/L) 1160/1010/890 1190/1090/990

Output power (W) 14 14

Auxiliary electric heater power /

Fan capacitor 1

Fan motor running current 0.12 0.12

Fan type-piece Cross flow fan-1
Diameter-length (mm) Φ97×583

Evaporator Aluminum fin-copper tube

Pipe diameter Φ7

Row-fin distance (mm) 2-1.4
Developed area of heat exchanger

(I×H×L)

580mm ×228.6mm×25.4mm

Swing motor model MP24GA

Motor power (W) 2

Fuse (A) PCB3.15A Transformer 0.2A
Noise (sound pressure level)

dB(A)

42/39/36

42/39/36

Noise (sound pressure level)
dB(A)

52/49/46 52/49/46

Outline dimension (W/D/H) (mm) 770×180×250

Package dimension (W/D/H) (mm)

855×270×336

Indoor

unit

Net weight/gross weight (kg) 8.5/12.5

—9—

Model PRO AIR 112 OUT PRO AIR 109 OUT

Compressor type C-RV133H1A EU1011DV

Compressor type Rotary type

Locked rotor current 24 33.5

Compressor running current 5.25 4

Compressor input power 1125 628

Compressor overload model B210-145-241E 4CYC11233

Throttling method Capillary

Starting mode Capacitor
Working temperature range －7～43℃

Condenser Aluminum fin-copper tube
Pipe diameter Φ9.52

Row-fin distance (mm) 2-1.4 2-1.4

Developed area of heat exchanger
(I×H×L)

791×508×44 645×508×44

Fan motor speed (rpm) 830 830

Motor rated power (W) 30 30

Fan motor running current (A) 0.26 0.3
Fan capacitor (μf) 2.5 2.5

Fan type-piece /

Fan type-piece Axial flow fan-1
Fan diameter (mm) Φ400 Φ400

Defrosting method Auto

Climate type T1

Insulation class I

Waterproof level IP24

Maximum working pressure of
exhaust side (Mpa)

3.8

Maximum working pressure of
exhaust side (Mpa)

1.2

Noise (sound pressure level) dB(A) 56 54

Noise (sound pressure level) dB(A) 66 64
Outline dimension (W/D/H) (mm) 848×320 ×540 848×320 ×540
Package dimension (W/D/H) (mm) 878×360 ×600 878×360 ×600

Net weight/gross weight (kg) 30/34 41/43

Outdoo

r unit

Refrigerant/refrigerant charge (kg) R410A /1.3 R410A /1.2

Length 4

Liquid pipe (mm) Φ6 Outer

diameter

Gas pipe (mm) Φ9.52

Height (m) 5

Connection

pipe

Maximum
distance

Length (m) 10

—10—

Model PRO AIR I112 IN PRO AIR 218 IN

Function Cooling Heating Cooling Heating

Rated voltage 230V

Rated frequency 50Hz
Capacity (W) 3200 3400 2500×2 2800×2

Nominal power (W) 1000 1100 830×2 900×2

Max. power (W) 1361 1383 1120×2 1100×2

Greatest currency (A) 5.9 6.1 5.9×2 5.4×2

Air flow (m3/h) 450 450

Dry capacity (L/h) 1.2

1.2×2

C.O.P/EER (W/W) 3.2 3.1 3 3.1

Model

KFR-32G/NaA12F-E KFR-25X2G/NaA121-E

Fan speed (r/min)(H/M/L) 1190/1090/990 1160/1010/890

Output power (W) 14 14

Auxiliary electric heater power /

Fan capacitor 1

Fan motor running current 0.12 0.12

Fan type-piece Cross flow fan-1
Diameter-length (mm) Φ97×583

Evaporator Aluminum fin-copper tube

Pipe diameter Φ7

Row-fin distance (mm) 2-1.4
Developed area of heat

exchanger (I×H×L)

580mm ×228.6mm×25.4mm

Swing motor model MP24GA

Motor power (W) 2

Fuse (A) PCB3.15A Transformer 0.2A
Noise (sound pressure level)

dB(A)

42/39/36

42/39/36

Noise (sound pressure level)
dB(A)

52/49/46 52/49/46

Outline dimension (W/D/H)
(mm)

770×180×250

Package dimension (W/D/H)
(mm)

855×270×336

Indoor

unit

Net weight/gross weight (kg) 8.5/12.5

—11—

Model PRO AIR I112 OUT PRO AIR 218 OUT

Compressor type EU1011DV 5PS108EAA22

Compressor type Rotary type

Locked rotor current 33.5 18

Compressor running current 4 4.05

Compressor input power 628 880

Compressor overload model 4CYC11233 7100819 (KA-122-LPD021A)

Throttling method Capillary

Starting mode Capacitor
Working temperature range －7～43℃

Condenser Aluminum fin-copper tube
Pipe diameter Φ9.52

Row-fin distance (mm) 2-1.4 2-1.8
Developed area of heat exchanger (I×H

×L)

645×508×44 730×660×44

Fan motor speed (rpm) 830 815

Motor rated power (W) 30 60

Fan motor running current (A) 0.3 0.6
Fan capacitor (μf) 2.5 3

Fan type-piece /

Fan type-piece Axial flow fan-1
Fan diameter (mm) Φ400 Φ400

Defrosting method Auto

Climate type T1

Insulation class I

Waterproof level IP24

Maximum working pressure of exhaust
side (Mpa)

3.8

Maximum working pressure of exhaust
side (Mpa)

1.2

Noise (sound pressure level) dB(A) 54 60

Noise (sound pressure level) dB(A) 64 70
Outline dimension (W/D/H) (mm) 848×320 ×540 950×340×685
Package dimension (W/D/H) (mm) 878×360 ×600 1100×450×750

Net weight/gross weight (kg) 41/43 65/70

Outdoo

r unit

Refrigerant/refrigerant charge (kg) R410A /1.2 R410A /0.9×2

Length 4

Liquid pipe (mm) Φ6 Outer

diameter

Gas pipe (mm) Φ9.52

Height (m) 5

Connection

pipe

Maximum
distance

Length (m) 10

—12—

Model

GE AIR 326 IN1 / GE AIR 326 IN2 / GE

AIR 326 OUT

GE AIR 428 IN / GE AIR 428 OUT

Function Cooling Cooling

Rated voltage 230V

Rated frequency 50Hz

Capacity (W)

6800 (3200+1800×2) 7200 （1800X4）

Nominal power (W) 6800 (3200+1800×2) 2900 （1450X2）

Max. power (W)

3400 (1700×2) 3400 （1700X2）

Greatest currency (A) 6.5+6.5 6.5+6.5

Air flow (m3/h) 450 450
Dry capacity (L/h) 1.2×2 1.2×2

C.O.P/EER (W/W) 2.4 2.5

Model

KF-18X2G/NA12-E /
KF-32G/NA12-E

KF-18X4G/NA12-E

Fan speed (r/min) (H/M/L) 1160/1010/890 1160/1010/890

Output power (W) 14 14

Auxiliary electric heater power /

Fan capacitor 1

Fan motor running current 0.12 0.12

Fan type-piece Cross flow fan-1

Diameter-length (mm) Φ97×583

Evaporator Aluminum fin-copper tube

Pipe diameter Φ7

Row-fin distance (mm) 2-1.4

Developed area of heat
exchanger (I×H×L)

580mm ×228.6mm×25.4mm

Swing motor model MP24GA

Motor power (W) 2

Fuse (A) PCB3.15A Transformer 0.2A

Noise (sound pressure level)
dB(A)

42/39/36

42/39/36

Noise (sound pressure level)
dB(A)

52/49/46

52/49/46

Outline dimension (W/D/H) (mm) 770×180×250

Package dimension (W/D/H)
(mm)

855×270×336

Indoor

unit

Net weight/gross weight (kg) 8.5/12.5

—13—

Model

GE AIR 326 IN1 / GE AIR 326 IN2 /

GE AIR 326 OUT

GE AIR 428 IN / GE AIR 428 OUT

Compressor type C-RV237H01AA C-RV237H01AA

Compressor type Rotary type

Locked rotor current 31 31

Compressor running current 6.3 6.3

Compressor input power 1100 1100

Compressor overload model MRA98619-9200 MRA98619-9200

Throttling method Capillary

Starting mode Capacitor
Working temperature range －5～43℃

Condenser Aluminum fin-copper tube
Pipe diameter Φ9.52

Row-fin distance (mm) 2-1.8 2-1.8

Developed area of heat exchanger
(I×H×L)

791×508×44 791×508×44

Fan motor speed (rpm) 780 780

Motor rated power (W) 60 60

Fan motor running current (A) 0.56 0.56
Fan capacitor (μf) 3 3

Fan type-piece /

Fan type-piece Axial flow fan-1
Fan diameter (mm) Φ460 Φ460

Defrosting method Auto

Climate type T1

Insulation class I

Waterproof level IP24

Maximum working pressure of

exhaust side (Mpa)

2.5

Maximum working pressure of

exhaust side (Mpa)

0.6

Noise (sound pressure level) dB(A) 58 58

Noise (sound pressure level) dB(A) 68 68
Outline dimension (W/D/H) (mm) 950×412 ×840 950×412 ×840
Package dimension (W/D/H) (mm) 1100×450×920 1100×450×920

Net weight/gross weight (kg) 72/77 72/77

Outdoo

r unit

Refrigerant/refrigerant charge (kg) R407C /1.27×2 R407C /1.27×2

Length Length of connecting tube

Liquid

pipe

(mm) Φ6 Outer

diameter

Gas pipe (mm) Φ9.52

Height (m) 5

Connection pipe

Maximum

distance

Length (m) 10

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

—14—

Part name

Part name of one driving one unit

Air in

Indoor unit

Panel

Air out Air guide board

Power plug

Remote controller

Drainage pipe

utdoor unit Air in

Connecting pipe and

connecting wire

Air outlet vent grill

Air out

3

3.1

—15—

3.2 Part name of one driving two unit

Air in

Indoor unit A

Wrapping tape

Air out

Indoor unit B

Panel

Air guide board

Remote controller

Drainage pipe

Outdoor unit

Air in

Air outlet vent grill

Air out

—16—

3.3 Part name of one driving three unit

Air in

Indoor unit

Panel

Air out Air guide board

Power plug

Remote controller

Drainage pipe

Air in

Outdoor unit

Air outlet vent grill

Air out

Connecting
pipe and
connecting
wire

—17—

P17

3.4

Part name of one driving four unit

Air in

Indoor unit

Panel

Air out Air guide board

Power plug

Remote controller

Drainage pipe

Air in

Outdoor unit

Air outlet vent grill

Air out

Connecting
pipe and
connecting
wire

—18—

Outline and installation dimensions

4.1 Outline and installation dimensions of indoor unit

Air inlet vent

Left pipe outlet

Right pipe outlet

Rear view

Ceiling

Left side Right side

Installation dimensions

4

—19—

4.2 Outline and installation dimensions of indoor unit 20

Handle

> 60cm

Bolt

Nut

Spanner

—20—

4.3 Outline and installation dimensions of indoor units 2 5, 32

Handle

Unit: mm

> 500

Bolt

Nut

Spanner

—21—

4.4 Outline and installation dimensions of one driving two outdoor unit

Unit: mm

500 and above

Bolt

Nut

Spanner

—22—

4.5 Outline and installation dimensions of one driving three outdoor unit

More than 50cm

More than 30cm

Bolt

More than 200cm Nut

Spanner

—23—

4.6 Outline and installation dimensions of one driving four outdoor unit

More than 50cm

More than 30cm

Bolt

More than 200cm Nut

Spanner

—24—

5

System diagram

5.1 Cool only system circuit diagram

Evaporator Cross flow fan

Capillary Filter

Axial flow fan

Condenser

Gas liquid
separator Compressor

When the power is on, indoor and outdoor units will start to run. The compressor sucks low-pressure refrigerant gas from
the evaporator of indoor unit and then discharges high-temperature, high-pressure refrigerant gas into outdoor
condenser. Then air exchanges the heat with outdoor air and becomes refrigerant liquid. The liquid is throttled by the
capillary and changes into low-temperature and low-pressure liquid and then flows into indoor evaporator. Then liquid
exchanges the heat with the required air and changes into low-temperature and low-pressure refrigerant gas. The cycle
introduced above goes on and on, and the demanded low temperature environment is maintained

5.2 Cool/Heat system circuit diagram

Evaporator Cross flow fan

Flow direction of refrigerant when heating
Flow direction of refrigerant when cooling

One-way valve

Main capillary Filter

Auxiliary Capillary

Axial flow fan

Condenser

Electromagnetic
four-way valve

Gas liquid
Separator Compressor

When the power is on, indoor and outdoor units will start to run. When the system operates in cool mode, the
compressor sucks low-temperature, low-pressure refrigerant gas from indoor evaporator and then discharges
high-temperature, high-pressure refrigerant gas into outdoor heat exchanger. With the help of axial flow fan, the gas
transfers its latent heat into outdoor air and becomes high-pressure refrigerant liquid. The liquid is throttled by the
capillary and changes into low-temperature and low-pressure liquid and then flows into indoor heat exchanger. With the
help of centrifugal fan, the liquid evaporates into low-temperature refrigerant gas and indoor air is cooled down. The
refrigerant gas is sucked into the compressor and the cycle introduced above goes on and on, and the demanded low
temperature environment is maintained. When the system operates in heat mode, four-way valve changes its way and
the refrigerant flows into the reversible cycle as the cool mode. The refrigerant discharges its latent heat in the indoor
heat exchanger, and sucks heat from outdoor heat exchanger and forms the heat pump cycle. This cycle goes on and on,
and the demanded high temperature environment is maintained.

5

—25—

Circuit diagram

6

PRO AIR 107 IN / PRO AIR 107 OUT; PRO AIR 109 IN / PRO AIR 109 OUT; PRO AIR 112 IN / PRO

PRO AIR I109 IN / PRO AIR I109 OUT; PRO AIR I112 IN / PRO AIR I112 OUT

—26—

Circuit

diagram is

same as

above.

Circuit

diagram is

same as

above.

PRO AIR 218 IN / PRO AIR 218 OUT

GE AIR 326 IN1 / GE AIR 326 IN2 / GE AIR 326 OUT

—27—

Circuit

diagram is

same as

above.

Circuit

diagram is

same as

above.

Circuit

diagram is

same as

above.

These circuit diagrams are subject to change without notice. Please refer to the one supplied with the unit.

GE AIR 428 IN / GE AIR 428 OUT

—28—

Function manual and operation method of remote controller

PRO AIR I112 IN / PRO AIR I112 OUT, suitable for frequency converter

Function manual of remote controller

7.1.1 Temperature parameter

 Room set temperature: (T

set

)

 Room ambient temperature: (T

amb

)

7.1.2 Basic function of system

No matter what mode the compressor is in, the minimum time interval between two startups should be 3
minutes after it is powered on.

7.1.2.1 Cooling mode

7.1.2. 1.1 The condition and process of cooling

If T

amb>Tset

, COOL mode will act, compressor and external fan will run, the indoor fan will run at the set
speed.
If T

amb≤Tset

-2℃, compressor will stop and external fan will stop after a delay of 30s. The indoor fan will

run at the setting speed.

If Tset-2℃＜T

amb＜Tset

, the unit will keep ℃ on running in the original mode.

¾ In this mode, the reversal valve will not be powered on and the temperature setting range is

16 ~30℃℃.

T

set

+1℃ T

amb

Start cooling

T

set

-1℃ Keep running in the original mode

Stopping cooling

≥3min

Compressor

Outdoor fan

Indoor fan Set fan speed

Run Stop

7.1.2.1.2 Protection function

 Anti-freezing Protection

When the anti-freezing protection is detected, the compressor will stop, the outdoor fan will stop after a
delay of 30 seconds. The indoor fan and swing motor will keep on running in the original mode. When
anti-freezing protection is eliminated and compressor has stopped for 3min, the machine restores its
former operation mode.

Anti-freezing Protection

Compressor ≥3min

Outdoor fan

Indoor fan Set fan speed

Run Stop

 Over current protection

The compressor will run at a limited frequency when the total current is high. The compressor will stop
when the total current is too high and the outdoor unit will stop after a delay of 30s.

7.1.2.2 Dry mode

7.1.2.2.1 The condition and process of dry mode

If T

amb>Tset

, the drying mode will act. The compressor and external fan will run, and the indoor fan will run

at a low speed.

7

7.1

—29—

If T

set

-2℃≤T

amb≤Tset

, the unit will keep on running in the original mode.

If T

amb≤Tset

-2℃, the compressor will stop. The external fan will stop after a delay of 30s, and the indoor

fan will run at a low speed.
¾ In this mode, the reversal valve will not be powered on and the temperature setting range is

16 ~30℃℃

T

amb

T

set

T

set

-2℃

Compressor

Outdoor fan

Indoor fan Low fan speed

Run Stop

Cooling running

Dry running

Stop running

7.1.2.2.2 Protection function

 Anti-freezing protection

Anti-frost protection same as cooling

 Over current protection

Over current protection is the same as the cooling mode.

7.1.2.2.3 SWING mode

At this mode, the inner fan will select among high, medium, low and auto modes and the compressor,
outer fan and 4-way fan will stop running.

¾ In this mode, the reversal valve will not be powered on and the temperature setting range is

16 ~30℃℃

7.1.2.3 HEAT mode

7.1.2.3.1 Running condition and process of heating mode

If T

amb≤Tset

+2 , HEAT mode will act, the compressor, outdoor fan and reversal valve will run at the same ℃

time, the indoor fan will run after 3 minutes’ delay at the latest.
If T

amb≥Tset

+4 , the compressor will stop℃ first and 15s later, the outdoor unit will stop. The reversal valve

will keep power-on and the indoor fan will run at a low speed and will stop 30s later.
If T

set

+2℃＜T

amb＜Tset

+4 ,℃ the unit will keep running in the previous mode.

¾ In this mode, the temperature setting range is 16 ~30 .℃℃

¾ The air conditioner will adjust the running frequency of the compressor automatically according to the

change of ambient temperature.

¾ The 4-way valve will be cut off 2min after the compressor stops operation when heating cut-off, or

heating mode changed to other mode.

T

set

+5℃

T

set

+2℃ T

amb

≥3min

Stop heating

Original running state

Start heating

Compressor

Outdoor fan
Indoor fan ≤3min Set fan speed ≤3min Set fan speed

Reversal valve

Run Stop

7.1.2.3.2 The condition and process of defrosting

When frost is detected in the condenser, the system will enter into defrosting mode. When the defrosting starts,
the compressor and indoor fan stop running. The outdoor fan will stop after a delay of 30s, and the four-way

—30—

valve will stop running after a delay of 30s. The defrosting will start 15s later. After the compressor runs for 7
min or when the defrosting is finished, the compressor will stop, and 30s later the four-way valve will run. 30s
later, the compressor and outdoor fan resume to operation and indoor fan will run after a delay of 3min. Prior to
entering into defrost, if the auxiliary heating is running, then, for defrosting, the auxiliary heating will be stopped
firstly, and 5s later the indoor fan will stop. The indoor fan will run at blowing residual heat mode when the
compressor stops due to failure at heating mode.

¾ In this mode, the reversal valve will not be powered on and the temperature setting range is 16 ~30℃℃

7.1.2.3.3 Protection function

 Anti-high temperature protection

If the evaporator is detected with a high pipe temperature, the outer fan stops running and if the evaporator
recovers to a normal pipe temperature, the outer fan resumes running.

 Noise immunization protection

When "RUN/STOP" is used to turn off the unit, the reversal valve will delay 2 minutes to stop.

 Over current protection

Over current protection is the same as the cooling mode

 Auxiliary electrical heating power

Operation condition of auxiliary electric heating: for heating mode and when compressor is powered on, and
when the pipe temperature is detected to be too low with the indoor fan running at medium or high speed, the
auxiliary electric heating will be put into operation. When the compressor is powered on, and when the pipe
temperature is detected to be too low with the indoor fan running at low speed, the auxiliary electric heating will
be put into operation.
Stop condition of auxiliary electric heating: when the compressor stops or the pipe temperature is too high or
the environmental temperature is too high, the auxiliary electric heating stops operation. The auxiliary electric
heating will stop when there is failure in the communications. Once it stops, it will require 2min to recover the
operation.

7.1.2.4 Dry mode

For air delivery mode, the indoor fan will run at the setting wind speed and the swing motor will run at the
setting mode and the running indicator will be lit.

7.1.2.5 Auto mode

In this mode, the system will automatically select its running mode based on the change of the ambient
temperature (cooling, dry , heating and air supply). The protection function is same as HEAT/COOL mode.

7.1.2.6 Failure indication of general protection functions at various modes
1 Overload protection

When evaporator pipe temperature is detected high, if it is still higher after the compressor runs in a limited
frequency, the compressor will stop running. In auto HEAT or HEAT mode, the indoor fan will blow for 60
seconds and then stop, In other modes, the indoor fan will run at the setting speed and display H4.
¾ Evaporator pipe temperature is the temperature of outdoor heat exchanger when cooling or temperature of

indoor heat exchanger when heating.

2 Compressor delay protection

The compressor will delay 3min to start again after stopping.

3 Compressor discharge temperature protection

When discharge temperature is too high, the compressor will stop and it will resume running after 3 minutes
and display E4.

4 Communications malfunction

Communications malfunction means that no correct signal can be received continuously within 3 minutes. In
this case, the outdoor unit stops operation. The residual heat blowing will be stopped at auto heating or heating
mode. As to other modes, the indoor fan will run at the setting wind speed.

5 Module protection

The compressor will stop at module protection and the compressor will resume back to operation when it has
stopped for 3min.

6 Status of indicator at receiver board of indoor unit

The receiver board indicator at running is at normal status and when the indicator signal received three times
continuously within 6 seconds are not the same as the previous one will be recognized as pressing one time
the indicator button. In this case, the indicator of receiver board will enter into detection mode and will
automatically exit from the detection mode in 3 minutes.

7.1.3 Other controls

7.1.3.1 Power ON/OFF

Each time the On/Off button of the remote controller is pressed, the On/Off mode will be changed over once.

7.1.3.2 Mode selection

Press the MODE button on the remote controller to select and display the following modes: AUTO, COOL, DRY,
FAN, and HEAT.

7.1.3.3 T emperature setting selection button

Each time TEMP or TEMP button is pressed, the setting temperature will be increased or decreased by 1℃,
with the adjusting range being 16～30 . In AUTO mode, this button does not function.℃

7.1.3.4 Time setting button

Time setting button of remote controller: the time selection range is 0-24h, with the minimum unit being 0.5h.

—31—

7.1.3.5 Auto button

The system will be stopped if the button is pressed down when the remote controller is powered on, with
the system being operated by remote controller. If the remote controller is powered off, pressing the button
will enter auto run mode and the swing will be turned on. The system will be running in accordance with
the remote controller if there is remote control command.

7.1.3.6 Sleep function

If the sleep function is set up at cooling or drying mode, T

set

will be raised automatically for 1℃ after one

hour, and will be raised for another 1℃ 2 hours later. Then, it will be running at such a setting temperature
and such a setting wind speed.

set

Temperature setting T

set

set

set

1 hour 2 hour Over 2 hour

If the sleep function is set up at heating mode, T

set

will be decreased for 1℃ after one hour, and will be

decreased for 2℃ 2 hours later. Then, it will be running at such a setting temperature and such a setting
wind speed.

1 hour 2 hour Over 2 hour

set

set

Temperature setting T

set

set

In FAN and AUTO mode, the set temperature is fixed.

7.1.3.7 Swing motor control

Use the SWING button of the wireless remote controller to controller SWING On/Off. Swing will only act
when indoor fan is running.
After power on, the stepping motor turns back to 0 position and closes the air outlet vent; after the unit is
turned on, it will turn back to the max. air outlet I position; when in swinging state, it will swing between L
and D position. When the unit is turned off, it will turn back to 0 position.

7.1.3.8 Measurement of maximum cooling capacity, name heating/cooling

Select cooling mode power on with remote controller and press “Light” button to turn on the light. In this
case, a sound from buzzer should be heard. Press “Change air” button to set up for air change 1 (air
change 2), a sound from buzzer should be heard, entering the maximum cooling mode (name cooling).
Afterwards, it is not allowed to press any other button of remote controller. Otherwise, the system will exit
from the maximum cooling mode (name cooling). Select heating mode power on with remote controller
and press “Light” button to turn on the light. In this case, a sound from buzzer should be heard. Press
“Change air” button to set up for air change 1 (air change 2), a sound from buzzer should be heard,
entering the maximum heating mode (name heating). Afterwards, it is not allowed to press any other
button of remote controller. Otherwise, the system will exit from the maximum heating mode (name
heating).
In case the maximum cooling, name cooling and name heating have been properly set up, cancel the
maximum cooling, name cooling and name heating 2 hours later.

—32—

7.1.3.9 Power supply of outdoor unit

The power supply for outdoor unit is turned on in AUTO, COOL, HEAT and DRY mode under turn-on state.
The power supply for outdoor unit will delay 3 minutes to turn off under turn-off state or in the FAN mode
under turn-on state.

7.1.3.10 Buzzer

The buzzer will deliver a sound when the remote controller is powered on or an effective remote control
signal is received or when there is button input signal.

7.1.3.11Control of electric heater belt

The two electric heater belts will stop operation when there is failure in environmental temperature sensor of
outdoor unit, otherwise, the control will be carried out in accordance with the following logic:

① If the outdoor environmental temperature is very low and the compressor is not turned on, the electric

heater belt of compressor will operate: otherwise, if the compressor is turned on or the compressor is
not turned on but the outdoor environmental temperature is very high, the electric heater belt will not
operate. If the compressor it not turned on and is in between lower and higher, the electric heater belt of
compressor will keep on the original state.

② If the outdoor environmental temperature is low but higher than mentioned in the above paragraph, the

electric heater belt of compressor will operate: otherwise, if the electric heater belt of compressor does
not operate when the outdoor environmental temperature is very high. If it is between the two
temperatures, the electric heater belt of compressor will keep on the original state.

7.1.3.12 Indoor fan control

The indoor fan may be set up with remote controller to HIGH, MED and LOW, in this case, the fan will run
respectively at high, medium and low speed.

The auto wind speed of indoor fan:
① For cool/heat mode: if the frequency is low, the indoor fan runs at low wind speed;if the frequency is high,

the indoor fan runs at high wind speed.

② For air delivery mode: the auto wind speed is forcedly set up to low wind speed.

7.1.3.13 Power-off memory function

Mode, swing, temperature setting, wind speed setting and timing (in case the power is off when the timer is
due and the power is turned on again, the timer will re-start counting. If the power is turned on again, the
system will operate at the mode after the timer is due).

—33—

Suitable to systems except for PRO AIR I109 IN / PRO AIR I109 OUT PRO AIR I112 IN / PRO AIR I112

OUT frequency converter

Function manual of remote controller

7.2.1 Temperature parameter

 Room set temperature: (T

set

)

 Room ambient temperature (T

amb

)

7.2.2 Basic function of the system

No matter what mode the compressor is in, the minimum time interval between two startups should be 3
minutes after it is powered on.

7.2.2.1 COOL mode

7.2.2.1.1 Running condition and process of cooling

If T

amb≥Tset

+1℃, COOL mode will act, compressor and outdoor fan will run, the indoor fan will run at the

set speed;
If T

amb≤Tset

-1℃, the system enters stop mode. In this case, the compressor will stop first, and the

indoor/outdoor fans will stop after a delay of 15s.
If T

set

-1℃＜T

amb＜Tset

+1℃, the unit will keep running in the previous mode.

¾ In this mode, the reversal valve will not be powered on and the temperature setting range is 16℃~30

℃

T

amb

T

set

+1℃

T

set

+2℃

≥3 min

Compressor

Outdoor fan

Indoor fan Set fan spee

d Set fan speed

Start cooling

Original running state

Stop cooling

Run Stop

7.2.2.1.2 Protection function

 Anti-freezing Protection

When system anti-freezing protection is detected, the compressor and outdoor fan stop running, and the
indoor fan runs at the preset speed. When anti-freezing protection is eliminated and compressor has
stopped for 3min, the machine restores its former operation mode.

Anti-freezing Protection

Compressor ≥3min

Outdoor fan

Indoor fan Set fan speed

Run Stop

 Over current protection

When the system current is detected to be higher than the specified value for 3 consecutive seconds, the
system will enter the operation mode of fan only. After 3 minutes, the system resumes back to the original
running mode. If the over current protection is detected for three times consecutively in 30 minutes, the
system will stop running and it is required to turn on the system with remote controller.

7.2.2.2 Dry mode

7.1.2.2.1 The condition and process of dry mode

If T

amb>Tset

+2℃, the cooling mode will act. The compressor and external fan will run, and the indoor fan

will run at an adjustable speed.

7.2

—34—

If T

set

-2℃≤T

anp≤Tset

+2℃, the drying mode will act. In this case, the indoor fan will run at low speed. The

compressor and the outdoor fan will stop 6min later. The indoor fan will stop 30s later. The compressor and
the outdoor fan will run 3.5 min later and the indoor fan will run at low speed. The drying process then will
run periodically as given above.

If T

amb＜Tset

-2 , ℃ the system enters stop mode. In this case, the compressor will stop first, and the outdoor

fan will stop after a delay of 15s, and then, the indoor fan will stop after another delay of 15s.
¾ In this mode, the reversal valve will not be powered on and the temperature setting range is

16 ~30℃℃

T

amb

T

set

+2℃

T

set

-2℃

6 min 6 min

4 min 4 min

Cooling running

Dry running

Stop running

Compressor

Outdoor fan

Indoor fan

Set fan speed Low speed Low speed

Run Stop

7.2.2.2.2 Protection function

 Anti-freezing Protection

If system anti-freezing protection is detected, the compressor will stop, but the outdoor fan will stop after a
delay of 15s. The indoor fan will run at low speed. If the anti-freezing protection is released and the
compressor has stopped for 3 min, the system will resume to original operation mode.

Anti-freezing Protection

Compressor

Outdoor fan

Indoor fan Low fan speed

Run Stop

7.2.2.3 heating mode

7.2.2.3.1 The condition and process of heating

If T

amb≤Tset

+2 , HEAT mode will act℃ . In this case, the compressor, outdoor fan and reversal valve will run at

the same time, the indoor fan will run in accordance with anti-cool condition.
If T

amb ≥Tset

+4 , the compressor ℃ will firstly stop, and the outdoor fan will stop running 15s later. But the

reversal valve is still with power on. The indoor fan will stop after running at low fan speed for 30s.
If T

set

+2℃＜T

amb＜Tset

+4 ,the unit will keep running in the previous mode.℃

In this mode, the reversal valve will be powered on and the temperature setting range is 16 ~30℃℃.

T

set

+4℃

T

set

+2℃ T

amb

≥6 min ≥3 min ≥6 min

Compressor

Outdoor fan

Indoor fan

≤2 min ≤2 min

Reversal valve

Stop heating

Original running mode

Start heating

Run Stop

7.2.2.3.2 The condition and process of defrosting

When frost is detected in the condenser, the system will enter into defrosting state. At this time the compressor
continues to run and the outdoor fan, four-way valve and indoor fan will stop running. The run indicator blinks.
When it's detected that defrosting in the condenser is completed, the outdoor fan and four-way valve will run
simultaneously.

≥3 min

—35—

The indoor fan will run after a delay of 3min and the compressor keeps on the running mode. In this case,
the run indicator stops blinking.

¾ The defrosting time is 10 min for the first time power on and the defrosting time afterwards depends

on the practical frost condition, the more the frost, the longer the defrosting time (Max. 12min, min.
3min). Exit from the defrosting mode if the frost removal is ended.

Defrosting time

Compressor

Outdoor fan 3min~12min
Indoor fan ≤3 min

4-way valve

Run Stop

7.2.2.3.3 Protection function

 Anti-high temperature protection

If the evaporator is detected with a high pipe temperature, the outer fan stops running and if the evaporator
recovers to a normal pipe temperature, the outer fan resumes running.

 Noise immunization protection

When "RUN/STOP" is used to turn off the unit, the reversal valve will delay 2 minutes to stop.

 Over current protection

When the system current is detected to be higher than the specified value for 3 consecutive seconds, the
compressor and outdoor fan will stop and the indoor fan will stop. 3 minutes later, the system will resume
back to the original running mode. The indoor fan will run in accordance with anti-cool air condition: If the
over current protection is detected for three times consecutively in 30 minutes, the system will stop running
and it is required to turn on the system with remote controller

 Anti-cold air

To prevent cool air from discharging when heating is started, the indoor fan may lag behind the
compressor for operation, with the latest of 2 minutes and will change over automatically the wind speed in
accordance with the temperature variation.

7.2.2.4 SWING mode

Running light

7.2.2.5 Auto mode

In this mode, the system will automatically select its running mode based on the change of the ambient
temperature (cooling, dry, heating and air supply). The protection function as HEAT/COOL mode

7.2.3 Other controls

7.2.3.1 Sleep function

If the sleep function is set up at cooling or drying mode, T

set

will be raised automatically for 1℃ after one

hour, and will be raised another 1℃ 2 hours later.

set

Temperature setting T

set

set

set

1 hour 2 hour Over 2 hour

If the sleep function is set up at heating mode, T

set

will be decreased automatically by 1℃ after one hour, and

will be decreased by 2℃ 2 hours later.

1 hour 2 hour Over 2 hour

set

set

Temperature setting T

set

set

—36—

7.2.3.2 Swing motor control

7.2.3.3 Timer function

7.2.3.3.1 Timer ON

When TIMER ON is set, the system will be set under TIMER ON mode. When it's time to turn on, the
controller will run in the set mode. Time interval is 0 hour and the setting range is from 0.5 to 24 hours.

7.2.3.3.2 Timer off

TIMER OFF can be set under running state. When it's time to turn off, the system will be turned off. Time
interval is 0.5 hour and the setting range is from 0.5 to 24 hours.

7.2.3.3.3 Toggle switch (opening panel of indoor unit）

a. Run in auto mode, and will run according to the signal from remote controller, if any.
b. For test position, the main system will run at cooling mode. The indoor fan will run at high speed and

the swing will run at SWING: if there is a remote control command, the main system will run according
to the remote controller. If there is open or short circuit in the temperature sensor, the buzzer will deliver
an alarm at a frequency of 2Hz.

c. In case the toggle switch is set to running position, the main unit runs in accordance with the received

remote control command

d. The system will stop running at the stop position.

Toggle switch

7.2.3.4 Buzzer

The buzzer will deliver an alarm when the controller is powered on or a signal from remote controller is
received.
If there is open or short circuit in the temperature sensor, and the encoder switch is turned to TEST
postion, the buzzer will deliver an alarm at a frequency of 2HZ.

7.2.3.5 Indicator

Running indicator light (red)
Cooling indicator (green)
Heating indicator (yellow)

7.2.3.7 Auto wind speed control

In this mode, according to ambient temperature, indoor fan will select High, Middle and Low fan speed
automatically.

7.2.3.8 Memory function

If the system is turned on again after it is cut off, the system will start to run at the original operation mode
prior to power cut off.

—37—

7.3 Names and functions of each part of the remote controller

Note:

z Be sure that there are no obstructions

Swing button

The guide louver will swing
at a certain angle each time
the swing button is pressed
and will stop operation
when the button is pressed
again.

Swing button

Press the button once,
and the air speed changes
in the order of

AUTO fan speed

Remarks: At mode,
the wind speed of fan is
not adjustable.

TEMP. button

Press once and it rises by
1 degree. Press once and
it drops by 1 degree.

In mode,
room temp. can be adjusted
in the range of 16℃-30 ℃

COOL mode operation

Dry mode

Ventilation mode

HEAT mode operation

MODE button

Press this button in turns to
change the operational
mode in the below order.

Auto

ON/OFF button:

Press this button, the unit
will start to run, when
repressed it, it will stop
running.

—38—

7.4 Names and function of wireless remote controller (After cover is opened)

Note: This type of wireless remote control is a kind of new current control. Some buttons of the control

not available to this air conditioner will not be described below.

Liquid crystal display
It shows all the setting contents.

Sleeping mode button

Press the button once to enter sleep

mode, and press it another time, to exit

from the sleep mode.

Note: No sleep function at “auto”
and “air delivery” modes

TIMER OFF button

If the button is pressed
during operation, the auto
stop time may be set up
at the range of 0-24
hours.

Timer cancel

Light button

Press the button once to turn on the light
mode, and press it another time, to turn off
the light mode.

TIMER ON button

If the button is pressed at system off
mode, the auto start time may be set
up with a step of 0.5h each time at the
range of 0-24 hours.

Timer cancel

—39—

7.5 Battery installation for the remote controller

z Guide to operational controls

General steps:

1 Plug to power supply and press ON/OFF button to start the unit.

2. Press MODE button to select the suitable operation mode.

3. Press the SWING button to make the swing blades swing at a certain angle. Press the button
once again to stop the swing

4. Press fan button, to set the desired fan speed.

5. Press +/- button to select the needed temperature.

Selectable steps:

6. To set up the sleep mode by pressing the sleep button at the remote controller.

7. Press TIMER button, and then press +/- button to set scheduled time.

Remarks: To select auto mode, the air conditioner will select automatically the suitable
running mode in accordance with the indoor temperature so that a comfortable ambient is
given.

z

Replace the batteries of the remote controller

The wireless remote controller uses two AAA alkali batteries

1. Slide downward the cover of battery compartment of remote controller and remove the used
batteries and replace with two pieces of new batteries (paying attention to the polarities).

2. Close the back cover of the remote controller

Note:
z Don't mix new and used or different

types of two batteries to insert.

z If the remote controller is not to be

used for several weeks, please take
out the battery to prevent the leakage
damaging the remote controller.

z The operation of remote controller

should be in its operation range.

z Remote controller should be more

than one meter's distance to TV or
sound equipment.

Cover of battery compartment

Reset button
Put in 2 Size 7 batteries

—40—

Disassembly procedures

8.1 Disassembly procedures for indoor unit

Operation procedures/pictures

Disassembling panel

Push the panel with hand and release the

movable latch on the panel, and then lift it

upward to take out the panel.

As shown in Fig.8-1

Disassembling filter

screen and wire clamp

Top the medium section of filter to shed off

catches at the both sides. Pull forward to

disassemble the filter.

Screw out with a screwdriver one screw that

fixes the wire clamp and remove the wire

clamp.

As shown in Fig.8-2

Disassembling air

guide louver board

Firstly remove the middle section of the

guide louver from the support frame and

then bend slightly the guide louver to remove

the guide louver.

As shown in Fig. 8-3

Latch Panel

Fig.8-1

Filter net

Tension disc

Fig.8-2

Air guide board

Fig.8-3

8

—41—

Operation procedures/pictures

Disassembling panel body

Open the three taping screws fixing the panel

body with a screw driver. Pull upward the

panel body and then lift it backward to take out

the panel body.

As shown in Fig.8-4

Disassemble electric box cover

Press down the latches around the cover of

electric box to remove the cover of electric

box as shown in Fig.8-5.

Disassembling water-tray

Pull away the terminals of guide louver motor

and divide the lower right latch of the water

tray with a screw driver. Rotate the water tray

to disengage it from the side latch. Remove

the water tray as shown in Fig.8-5

Screw Panel body Screw Cover

Fig.8-4

Clamp

Fig.8-5

Clamp

Water-tray Connecting

terminal

Fig.8-6

—42—

Operation procedures/pictures

Disassembling the electric box

Firstly screw off 2 screws at the indicator board

and disassemble the indicator board. Then, pull

away the terminals of motor. Screw off grounding

screw and 2 screws fixing the electric box with a

screw driver. Open a latch of the electric box to

remove the electric box. as shown in Fig.8-7, 8-8.

Disassembling evaporator assembly

Firstly use a screwdriver to unscrew the screws in

the rear pipe-clamping bar of evaporator. Remove

the rear pipe clamp bar.

Unscrew the 2 screws at the right side of

evaporator.

Unscrew the screw on the left side of the

evaporator, and loosen the clasp. Turn the

evaporator for a certain angle, and remove the

evaporator as shown in Fig.8-8, 8-9, 8-10, 8-11.

Screw

Indicator board

Fig.8-7

Screw

Grounding screws Clamp

Fig.8-8

Rear pipe

clip board

Fig.8-9

—43—

Operation procedures/pictures

Disassembling the motor

Firstly use a screwdriver to unscrew the 2

screws in the board choking of motor, pop

up the clasp as shown in the figure, and

remove the board choking of the motor as

shown in Fig.8-12.

Screw

Fig.8-10

Screw Clamp

Fig.8-11

Motor clamp Screw

Fig.8-12

—44—

Operation procedures/pictures

And then unscrew the set screw for fixing

the motor, lift it up backward, and remove

the motor as shown in Fig.8-13

Remove cross flow fan

After taking out the motor, take out the ring

of bearing on the left end of the fan to take

off the cross flow fan as shown in Fig.8-14.

Taping screw

Motor

Fig.8-13

Cross flow fan

Rubber seat of bearing

Fig.8-14

—45—

8.2 Disassembling procedure of outdoor unit 20

Operation procedures/pictures

Disassembling top cover and handle

Screw off one fixing screw that fixes the handle

with screwdriver to take out the handle. Screw

off 3 screws around the top cover to remove

the top cover as shown in Fig.8-15.

Disassembling the rear grill

Screw off 4 screws around the rear grill with a

screw driver to remove the rear grill as shown

in Fig.8-16.

Remove the front panel

Screw off 6 screws fixing the front panel with a

screw driver to remove front panel as shown in

Fig.8-17.

Top cover Handle

Screw

Fig. 8-15

Rear grill

Fig.8-16

Screw

Fig.8-17

—46—

Operation procedures/pictures

Disassembling the electric box

Screw off 3 screws of the electric box with a

screw driver to remove the electric box as

shown in Fig.8-18.

Disassembling the right

sideboard

Screw off 5 screws at the right sideboard with a

screw driver to remove the right sideboard as

shown in Fig.8-19.

Disassembling axial flow fan

Screw off the nut fixing the axial fan with a

spanner to pull outward and remove the axial

fan as shown in Fig.8-20.

Screw

Fig.8-18

Screw

Fig.8-19

Nut

Fig.8-20

—47—

Operation procedures/pictures

Disassembling the motor and motor support

With a screw driver, screw off the screw fixing

the motor and motor frame to remove the motor

and motor frame as shown in Fig.8-21.

Disassembling capillary
assembly

Weld off the welding spots between the

capillary assembly and other pipeline

connection and take off the capillary assembly

as shown in Fig. 8-22.

Disassembling valve

With a screw driver, screw off the screw fixing

the valve, and then weld off the connecting pipe

of the valve to remove the valve as shown in

Fig.8-23.

Motor

Motor bracket

Screw

Fig. 8-21

Capillary

assembly

Fig. 8-22

Valve

Fig.8-23

—48—

Operation procedures/pictures

Disassembling compressor

Weld off two ends of compressor and screw

off 3 base screws with a spanner to remove

the compressor as shown in Fig.8-24.

Welded point

Base screw

Fig.8-24

—49—

8.3 Disassembly procedures for outdoor unit 25, 32

Suitable for PRO AIR 109 IN / PRO AIR 109 OUT, PRO AIR 112 IN / PRO AIR 112 OUT

Operation procedures/pictures

Disassembling the top cover

Screw off the one piece of fixing screw that fixes

the handle with screwdriver and push down with

strength to take out the handle.

Screw off the 3 pieces of screws around the top

cover and then lift it upward to take out the top

cover as shown in Fig.8-25.

Disassembling the net cover

Unscrew 4 tapping screws in the screen

enclosure, and remove the screen enclosure as

shown in Fig.8-26.

Disassembling panel

sub-assembly

Unscrew the 5 tapping screws at the valve

support chassis and sideboard of the condenser

to take off panel assembly as shown in Fig.8-27.

Top cover Screw Screw Handle

Fig.8-25

Screw

Net cover

Fig.8-26

Panel

Screw

Fig.8-27

—50—

Operation procedures/pictures

Dismount the electric mounting board

Screw off the 3 screws fixing the electric device

installation board, and pull out the inserting

contacts for leads of compressor and fan motor,

and remove the electric device installation board

as shown in Fig.8-28.

Disassembling right sideboard

Unscrew the 5 screws that fix the right sideboard

to take out the right sideboard as shown in

Fig.8-29.

Disassembling axial flow fan

Loosen the fixing nut with a spanner, remove the

nut, spring washer and flat washer. Remove the

lower axial flow fan with force as shown in

Fig.8-30.

Electric installation board

Screw

Fig.8-28

Screw

Fig.8-29

Fixing nut

Axial flow fan

Fig.8-30

—51—

Operation procedures/pictures

Disassembling the motor and motor support

SCREW off 4 tapping screws that fix the motor to

take out the motor. Unscrew 2 tapping screws for

fixing the motor bracket, pull it upward, and take

out the motor bracket as shown in Fig.8-31.

Disassembling four-way valve

Unscrew the fixing nut of the four-way valve coil

and remove the coil. Wrap the four-way valve

with wet sponge and weld off the four welding

spots on the four-way valve to take off the

four-way valve. The welding process should be

performed as quick as possible, ensure that the

wrapped spun cotton should be moistened all

along; ensure that the pin cords etc. of

compressor must not be burnt out by thin flame

as shown in Fig.8-32.

Capillary assembly

Weld off the welding spots between the capillary

assembly and other pipeline connection and take

off the capillary assembly as shown in Fig.8-33.

Motor bracket

Taping screw

Motor

Fig.8-31

Four-way valve

Welded point

Fixing nut

Fig.8-32

Capillary assembly

Fig.8-33

—52—

Operation procedures/pictures

Disassemblling big and small valves

Screw off 2bolts that fix the big valve, weld off

the welding point between the big valve and

the air return pipe to take down the big valve.

(Note: when welding off the welding spots,

wrap the big valve with wet cloth completely to

avoid high-temperature from damaging the

valve body.)

Screw off 2 bolts that fix the small valve, weld

off the welding point between the small vale

and the forked type pipe and take down the

small valve as shown in Fig.8-34.

Disassembling compressor

Screw off 3 nuts with wash at the base legs of

compressor (Remarks: it is required to firstly
discharge completely the freon.） Weld off the

welding spots as shown in the sucking and

exhausted pipings of the compressor. Remove

away carefully the pipings and remove the

compressor as shown in Fig.8-35.

Small valve gate

Big valve gate

Bolt

Fig.8-34

Compressor bolt

Fig.8-35

—53—

8.4 Disassembling procedures for outdoor unit

Suitable for PRO AIR I109 IN / PRO AIR I109 OUT, PRO AIR I112 IN / PRO AIR I112 OUT

Operation procedures/pictures

Disassemble the top cover

Screw off the one piece of fixing screw that fixes

the handle with screwdriver and push down with

strength to take out the handle.

Screw off the 3 pieces of screws around the top

cover and then lift it upward to take out the top

cover as shown in Fig.8-36.

Disassembling net cover

Screw off 4 taping screws at the rear sideboard

and valve support chassis and condensor

sideboard to remove the net cover as shown in

Fig.8-37.

Disassembling panel assembly

Screw off the 5 pieces of tapping screws at the

valve support chassis and sideboard of the

condenser to take off panel assembly as shown

in Fig.8-38.

Top cover Screw Screw Handle

Fig.8-36

Rear grill

Screw

Fig.8-37

Panel

Screw

Fig.8-38

—54—

Operation procedures/pictures

Disassembling right sideboard

Unscrew the 7 screws that fix the right

sideboard to take out the right sideboard as

shown in Fig.8-39.

Disassembling reactor box
and electric box assembly

Screw off the 2 screws that fix the electric box

cover to remove the cover of electric box.

Screw off 2 screws fixing the reactor box

assembly and remove the frame for

temperature sensor to remove the reactor box.

Screw off 4 screws fixing the reactor to remove

the reactor box.

Screw off 2 screws fixing the electric box and

unloose each wire bundle and unplug the

connection wire to take off the electric box as

shown in Fig.8-40, 8-41, 8-42.

Screw

Fig. 8-39

Screw Electric box cover

Fig.8-40

Sensor support

Reactor box

Reactor

Screw

Fig.8-41

—55—

Operation procedures/pictures

Screw Electric box

Fig. 8-42.

Disassembling axial flow fan

Unloose the fixing nut that fixes the axial flow

fan with spanner and take out the nut, spring

gasket and flap gasket in sequence as shown

in Fig. 8-43.

Nut

Fig. 8-43.

Disassembling the motor and motor support

Screw off the 4 pieces of tapping screws that

fix the motor, and take out the motor. Screw off

the 2 screws that fix the motor frame, and take

out the motor frame as shown in Fig. 8-44.

Motor

Screw

Fig. 8-44

Axial flow fan

Screw

—56—

Operation procedures/pictures

Disassembling four-way valve

Screw off the fixing nut of the four-way valve
coil and remove the coil. Wrap the four-way
valve with wet sponge and weld off the four
weld joints on the four-way valve to take off
the four-way valve (Remarks: it is required to
discharge completely the freon inside).
Welding process should be as quickly as
possible and the wetness of the wrapping
sponge should be maintained all the time. Be
sure not to burn out the lead wire of the
compressor as shown in Fig.8-45. Fig. 8-45.

Disassembling Capillary

Weld off each weld joint of the main capillary

and auxiliary capillary to take off the capillary

as shown in Fig.8-46.

Fig. 8-46.

Disassembling big valve and small valve

Screw off 2 bolts that fix the big valve, weld off

the welding point between the big valve and

the air return pipe to take down the big valve.

Note: when welding off the welding spots,

wrap the big valve with wet cloth completely to

avoid high-temperature damage to the valve

body. Screw off 2 bolts that fix the small valve,

and weld off the welding point between the

small vale and the forked type pipe and take

down the small valve as shown in Fig. 8-47.

Fig. 8-47.

Four-way

valve

Four-way

valve coil

welded

p

oint

Capillar

y

Small valve gate

Big valve gate

Bolt

—57—

Operation procedures/pictures

Disassembling compressor

Unloose the 3 pieces of bottom nuts of the

compressor, weld off the suction and

discharge pipe and remove the pipeline

carefully to take out the compressor as shown

in Fig. 8-48.

Bottom nut

Fig. 8-48

Compressor

—58—

Disassembly procedures for outdoor unit (one driving two)

Operation procedures/pictures

Disassembling the front sideboard

Screw off 4 fixing screws fastening the front

sideboard to disassemble the front sideboard

as shown in Fig. 8-49.

Screw Front

sideboard

Fig. 8-49

Disassemble the top cover board

Screw off the screws that fix around the top

cover to take off the top cover as shown in Fig.

8-50.

Fig. 8-50.

Disassembling the rear grill

Screw off 4 taping screws fastening the rear

sideboard to disassemble the rear grill as

shown in Fig. 8-51.

Screw Rear grill

Fig. 8-51

Top cover board

Screw

—59—

Operation procedures/pictures

Disassembling the cabinet assembly

Screw off the 8 tapping screws on the cabinet,

chassis and condenser sideboard to take off

the cabinet assembly as shown in Fig. 8-52.

Screw

outer cover

Fig. 8-52.

Disassembling the electric box

Screw off the 2 screws that fix the electric

installation board and unplug the lead wire

insert of compressor, fan motor and four-way

valve (not for cooling only) to take off the

electric box as shown in Fig. 8-53.

Fig. 8-53

Disassembling rear sideboard

Screw off the screws on the rear sideboard,

valve support and chassis assembly and lift it

upward to take off the rear sideboard as

shown in Fig. 8-54.

Electric box

Fig. 8-54

Screw

Electric box

Rear sideboard

—60—

Operation procedures/pictures

Disassembling axial flow fan

Screw off the fixing nut of axial flow fan with a

spanner to pull outward the axial flow fan as

shown in Fig. 8-55.

fixing nut

Fig. 8-55

Disassembling the motor and motor support

Screw off the motor fixing bolt on the motor

bracket pull out the motor backwards. Then

screw off the tapping screws that fix the motor

support, lift it upward and take out the motor

support as shown in Fig. 8-56.

Motor bracket

Fixing bolt of motor bracket

Fig. 8-56

Disassembling Four-way valve

Screw off the fixing nut of the coils of four-way

valves (2 pieces) and remove the coil. Wrap

the four-way valve with wet sponge and weld

off the weld joints on the four-way valve to

take off the four-way valve. The welding

process should be performed as quick as

possible, ensure that the wrapped spun cotton

should be moistened all along; ensure that the

pin cords etc. of compressor must not be burnt

out by thin flame. (Note: it is required to

completely discharge freon firstly.)as shown in

Fig. 8-57.

Fig .8-57

Axial flow fan

Motor fixing bolt

Four-way valve

Welded point

—61—

Operation procedures/pictures

Disassembling Capillary

Wrap the capillary with wet sponge and weld

off its weld joints with other pipeline. The

welding process should be performed as

quickly as possible, ensure that the wrapped

spun cotton should be moistened all along;

ensure that the leading of compressor must

not be burnt out by flame. (Note: it is required

to completely discharge freon prior to welding

the capillary.)as shown in Fig. 8-58.

Fig. 8-58

Disassembling valve

Screw off 2 bolts that fix the big valve, weld off

the welding point between the big valve and

the air return pipe to take down the big valve.

Screw off the 2 pieces of bolts that fix the

small valve and weld off the welding spots

connecting the small valve and the connecting

pipe to take off the small valve. (Note: when

welding off the welding spots, wrap the big

valve with wet cloth completely to avoid

high-temperature damage to the valve

body)as shown in Fig. 8-59. Fig. 8-59

Disassembling compressor

Screw off the 3 washer nuts at the (2) base

legs of the compressor. Weld off all the

welding points of sucking/discharging pipes for

the compressor, and remove carefully the

piping. Remove the compressor as shown in

Fig. 8-60.

Compressor bolt

Fig. 8-60

Capillary

Small valve Big valve Bolt Bolt

Compressor

—62—

Disassembling procedures for outdoor unit (one driving two)

Operation procedures/pictures

Disassembling the front sideboard

Screw off the 4 pieces of fixing screws of the

front sideboard and pull the handle upward to

take off the front sideboard as shown in Fig.

8-61.

Screw Front sideboard

Fig. 8-61

Disassemble the top cover board

Screw off the screws that fix around the top

cover to take off the top cover as shown in Fig.

8-62.

Screw

Top cover

Fig. 8-62

Disassembling the rear grill

Screw off the 4 pieces of tapping screws on

the rear sideboard and cabinet to take off the

rear grill.

Fig. 8-63

Rear grill Screw

Fig. 8-63

—63—

Operation procedures/pictures

Screw

Disassembling the cabinet assembly

Screw off the 8 tapping screws on the cabinet,

chassis and condenser sideboard to take off

the cabinet assembly as shown in Fig. 8-64.

Cabinet assembly

Fig. 8-64

Disassembling the electric box

Screw off the screws fixing the electric device

installation board, and pull out the inserting

contacts for leads of compressor and fan

motor, and remove the electric device

installation board as shown in Fig. 8-65.

Screw

Fig. 8-65

Disassembling rear sideboard

Screw off the screws (14 pieces) that fix the

rear sideboard, valve support and chassis

assembly and lift it upward to take off the rear

sideboard as shown in Fig. 8-66, 8-67.

Screw

Fig. 8-66 Fig.8-67

Rear

sideboard

Frame for

electromagnetic valve

—64—

Operation procedures/pictures

Disassembling axial flow fan

Screw off the tapping screws on the cabinet,

chassis and condenser sideboard to take off

the cabinet assembly as shown in Fig. 8-68.

Lock washer of external gear

Fig. 8-68

Disassembling the motor and motor support

Screw off the motor fixing bolt on the motor

bracket, pull out the motor backwards. Then

screw off the tapping screws that fix the motor

support, lift it upward and take out the motor

support as shown in Fig. 8-69.

Motor bracket

Fixing bolt of motor bracket

Fig. 8-69

Disassembling valve

Screw off 2 bolts that fix the big valve, weld off

the welding point between the big valve and

the air return pipe to take down the big valve.

Note: when welding off welding spots, wrap

the big valve with wet cloth completely to

avoid high-temperature damage to the valve

body. Screw off 2 bolts that fix the small valve,

and weld off the welding point between the

small vale and the forked type pipe and take

down the small valve as shown in Fig. 8-70.

Fig. 8-70

Axial flow fan

Fixing nut

Motor fixing bolt

(6 pieces)

Bolt

Valve bracket

Big valve gate

Small valve gate

—65—

Operation procedures/pictures

Disassembling the compressor

Release the 3 washer nuts at the legs of

compressors (2 sets)(Remarks: it is required

to completely discharge freon). Weld off the

welding spots on suction /exhaust piping of

compressor, take away pipeline with care, and

take out the compressor as shown in Fig.

8-71.

Fig. 8-71

Air discharge

pipe

Compressor

(2 pieces)

compressor bolts (3 pcs)

Compressor bolt

Liquid

distributing pipe

Electromagnetic

valve

—66—

Disassembling procedures for outdoor unit (one driving four)

Operation procedures/pictures

Disassembling the front sideboard

Screw off the 4 pieces of fixing screws of the

front sideboard and pull the handle upward to

take off the front sideboard as shown in Fig.

8-72.

Screw Front sideboard

Fig. 8-72

Disassemble the top cover board

Screw off the screws that fix around the top

cover to take off the top cover as shown in Fig.

8-73.

Screw

top cover

Disassembling the rear grill

Screw off the 4 pieces of tapping screws on

the rear sideboard and cabinet to take off the

rear grill as shown in Fig. 8-74.

Rear grill Screw

Fig. 8-74

—67—

Operation procedures/pictures

Disassembling the cabinet assembly

Screw off the 8 tapping screws on the cabinet,

chassis and condenser sideboard to take off

the cabinet assembly as shown in Fig. 8-75.

Cabinet assembly

Fig. 8-75

Disassembling the electric box

Screw off the screws fixing the electric device

installation board, and pull out the inserting

contacts for leads of compressor and fan

motor, and remove the electric device

installation board as shown in Fig. 8-76.

Screw

Fig. 8-76

Disassembling rear sideboard

Screw off the screws (14 pieces) that fix the

rear sideboard, valve support and chassis

assembly and lift it upward to take off the rear

sideboard as shown in Fig. 8-77, 8-78.

Screw

Fig. 8-20 Fig. 8-21

Rear

sideboard

Frame for

electromagnetic valve

—68—

Operation procedures/pictures

Disassembling axial flow fan

Screw off the tapping screws on the cabinet,

chassis and condenser sideboard to take off

the cabinet assembly as shown in Fig. 8-79.

Lock washer of external gear

Fig. 8-79

Disassembling the motor and motor support

Screw off the motor fixing bolt on the motor

bracket, pull out the motor backwards. Then

screw off the tapping screws that fix the motor

support, lift it upward and take out the motor

support as shown in Fig. 8-80.

Fixing bolt of motor bracket

Fig. 8-80

Disassembling valve

Screw off 2 bolts that fix the big valve, weld off

the welding point between the big valve and

the air return pipe to take down the big valve.

Note: when welding off welding spots, wrap

the big valve with wet cloth completely to

avoid high-temperature damage to the valve

body. Screw off 2 bolts that fix the small valve,

and weld off the welding point between the

small vale and the forked type pipe and take

down the small valve as shown in Fig. 8-81.

Fig. 8-81

Axial flow fan

Fixing nut

Motor fixing bolt

Motor bracket

Small valve gate

Bolt

Big valve gate

Valve bracket

—69—

Operation procedures/pictures

Disassembling the compressor

Release the 3 washer nuts at the legs of

compressors (2 sets)(Remarks: it is required

to completely discharge freon). Weld off the

welding spots on suction /exhaust piping of

compressor, take away pipeline with care, and

take out the compressor as shown in Fig.

8-82.

Fig. 8-82

Air

discharge

pipe

Compressor

(2 pieces)

Compressor

bolt (3 pcs)

Liquid

distributing pipe

Electromagneti

c valve

—70—

Explosive view and parts list

Explosive view of parts and components of indoor unit

9

—71—

9.2 Explosive view of parts of outdoor unit

Code No. of parts Qty.

No. Name of parts

PRO AIR 107 IN PRO AIR 109 IN PRO AIR 112 IN

1 Hanging board 01252220 01252220 01252220 1

2 Bottom case 22202447 22202447 22202447 1

3 Water chute, evaporator 06122001 06122001 06122001 1

4 Pressure board of connecting pipe 24242001 24242001 24242001 1

5 Cross flow fan 10352001 10352001 10352001 1

6 Fan bearing 76512210 76512210 76512210 1

7

Rubber ring of cross flow fan

76512203 76512203 76512203 1

8 Water-tray 20182006 20182006 20182006 1

9 Swing blade 10512002 10512002 10512002 12

10 Connecting lever 1 10582002 10582002 10582002 1

11 Connecting lever 2 10582003 10582003 10582003 1

12 Drainage pipe 05232411 05232411 05232411 1

13 Separating lever 10582001 10582001 10582001 2

14 Water leading plate of evapurator / / / 1

15 Evaporator parts 010020935 010020935 010020936 1

16 Angular bracket, evaporator 24212016 24212016 24212016 1

17 Panel body 20002345 20002345 20002345 1

18 Screw Cover 242520012 242520012 242520012 3

19 Panel 20002346 20002346 20002346 1

20 Filter net (left) 11122041 11122041 11122041 1

21 Support for purifier 24222001 24222001 24222001 2

22 Air cleaner A 11012002 11012002 11012002 1

23 air guide board 10512070 10512070 10512070 1

24 Guide board axle sleeve 10542011 10542011 10542011 3

25 Remote controller Y512 30512506 30512506 30512506 1

26 Filter screen B, cleaning cartridge 11012003 11012003 11012003 1

27 Filter net (right) 11122040 11122040 11122040 1

28 Housing of indicator board 22262008 22262008 22262006 1

29

Indoor pipe temperature sensor

390000595 390000595 390000595 1

30 Sensor insert B 42020063 42020063 42020063 1

31 Stepping motor MP24GA 15212102 15212102 15212102 1

32 Motor FN8G 15012037 15012108 15012108 1

33 Motor hold-down board 26112014 26112014 26112014 1

34 Wire clamping tag 42012415 42012415 42012415 1

35 Electric wire holder 71010103 71010103 71010103 1

36 Main board 5K522AJ 30055740 30055740 30055740 1

37 Wire clamping chute 70482001 70482001 70482001 1

38

Indoor ambient temperature sensor

390001912 390001912 390001912 1

39 Protective pipe 46010013 46010013 46010013 1

40 indicator light frame 24212045 24212045 24212045 1

41 Terminal board GT5A4 42010260 42010260 42010260 1

42 Reception board JD 30046087 30046087 30046082 1

43 Power transformer SC28B1 43110170 43110170 43110170 1

44 Electric box A 20102001 20102001 20102001 1

45 Electric box top cover 20112010 20112010 20112010 1

46 Electric box top cover 1 20112006 20112006 20112006 1

47

Rubber-sleeve flexible wire (A
type/four-core)

400205253 400205253 400205253 1

48

Rubber-sleeve flexible wire (A
type/3-core) 400205264 400205264 400205265 1

49 Power cable 400204643 400204643 400204643 1

—72—

Code No. of parts Qty.

No. Name of parts

PRO AIR I109 IN PRO AIR I112 IN PRO AIR 218 IN

1 Hanging board 01252220 01252220 01252220 1
2 Bottom case 22202447 22202447 22202447 1

3 Water chute, evaporator 06122001 06122001 06122001 1

4 Pressure board of connecting pipe 24242001 24242001 24242001 1

5 Cross flow fan 10352001 10352001 10352001 1
6 Fan bearing 76512210 76512210 76512210 1

7

Rubber ring of cross flow fan
bearing

76512203 76512203 76512203 1

8 Water-tray 20182006 20182006 20182006 1

9 Swing blade 10512002 10512002 10512002 12
10 Connecting lever 1 10582002 10582002 10582002 1

11 Connecting lever 2 10582003 10582003 10582003 1

12 Drainage pipe 05232411 05232411 5232411 1

13 Separating lever 10582001 10582001 10582001 2
14 Water leading plate of evapurator / / / 1

15 Evaporator parts 010020935 010020935 010020935 1

16 Angular bracket, evaporator 24212016 24212016 24212016 1

17 Panel body 20002345 20002345 20002345 1
18 Screw Cover 242520012 242520012 242520012 3

19 Panel 20002346 20002346 20002346 1

20 Filter net (left) 11122041 11122041 11122041 1

21 Support for purifier 24222001 24222001 24222001 2
22 Air cleaner A 11012002 11012002 11012002 1

23 air guide board 10512070 10512070 10512070 1

24 Guide board axle sleeve 10542011 10542011 10542011 3

25 Remote controller Y512 30512506 30512506 30512506 1
26 Filter screen B, cleaning cartridge 11012003 11012003 11012003 1

27 Filter net (right) 11122040 11122040 11122040 1

28 Housing of indicator board 22262008 22262008 22262008 1

29

Indoor pipe temperature sensor
(20K）

390000595 390000595 390000595 1
30 Sensor insert B 42020063 42020063 42020063 1

31 Stepping motor MP24GA 15212102 15212102 15212102 1

32 Motor FN8G 15012108 15012108 15012108 1

33 Motor hold-down board 26112014 26112014 26112014 1
34 Wire clamping tag 42012415 42012415 42012415 1

35 Electric wire holder 71010103 71010103 71010103 1

36 Main board 5K522AJ 30039247 30039247 30055736 1

37 Wire clamping chute 70482001 70482001 70482001 1

38

Indoor ambient temperature
sensor (15K） 390001912 390001912 390001912 1

39 Protective pipe 46010013 46010013 46010013 1

40 indicator light frame 24212045 24212045 24212045 1

41 Terminal board GT5A4 42011138 42011138 42010184 1
42 Reception board JD 30046086 30046086 30046087 1

43 Power transformer SC28B1 43110170 43110170 43110170 1

44 Electric box A 20102001 20102001 20102001 1

45 Electric box top cover 201120101 201120101 20112010 1
46 Electric box top cover 1 20112006 20112006 20112006 1

47

Rubber-sleeve flexible wire (A
type/four-core)

/ / 400205235 1

48

Rubber-sleeve flexible line (A
type/3-core)

400205236 400205236 40030328 1

49 Power cable 40020203 40020203 / 1

—73—

Code No. of parts Qty.

No. Name of parts

PRO AIR 218 IN PRO AIR 112 IN GE AIR 428 IN

1 Hanging board 01252220 01252220 01252220 1
2 Bottom case 22202447 22202447 22202447 1

3 Water chute, evaporator 06122001 06122001 06122001 1

4 Pressure board of connecting pipe 24242001 24242001 24242001 1

5 Cross flow fan 10352001 10352001 10352001 1
6 Fan bearing 76512210 76512210 76512210 1

7

Rubber ring of cross flow fan
bearing

76512203 76512203 76512203 1

8 Water-tray 20182006 20182006 20182006 1

9 Swing blade 10512002 10512002 10512002 12
10 Connecting lever 1 10582002 10582002 10582002 1

11 Connecting lever 2 10582003 10582003 10582003 1

12 Drainage pipe 05232411 05232411 05232411 1

13 Separating lever 10582001 10582001 10582001 2
14 Water leading plate of evapurator / / / 1

15 Evaporator parts 010020935 010020935 010020935 1

16 Angular bracket, evaporator 24212016 24212016 24212016 1

17 Panel body 20002345 20002345 20002345 1
18 Screw Cover 242520012 242520012 242520012 3

19 Panel 20002346 20002346 20002346 1

20 Filter net (left) 11122041 11122041 11122041 1

21 Support for purifier 24222001 24222001 24222001 2
22 Air cleaner A 11012002 11012002 11012002 1

23 air guide board 10512070 10512070 10512070 1

24 Guide board axle sleeve 10542011 10542011 10542011 3

25 Remote controller Y512 30512506 30512506 30512506 1
26 Filter screen B, cleaning cartridge 11012003 11012003 11012003 1

27 Filter net (right) 11122040 11122040 11122040 1

28 Housing of indicator board 22262006 22262006 22262006 1

29

Indoor pipe temperature sensor
(20K）

390000594 390000594 390000594 1
30 Sensor insert B 42020063 42020063 42020063 1

31 Stepping motor MP24GA 15212102 15212102 15212102 1

32 Motor FN8G 15012108 15012108 15012108 1

33 Motor hold-down board 26112014 26112014 26112014 1
34 Wire clamping tag 42012415 42012415 42012415 1

35 Electric wire holder 71010103 71010103 71010103 1

36 Main board 5K522AJ 30055799 30055799 30055799 1

37 Wire clamping chute 70482001 70482001 70482001 1

38

Indoor ambient temperature
sensor (15K）

390000453 390000453 390000453 1

39 Protective pipe 46010014 46010014 46010014 1

40 indicator light frame 24212045 24212045 24212045 1

41 Terminal board GT5A4 42011233 42011233 42011233 1
42 Reception board JD 30046082 30046082 30046082 1

43 Power transformer SC28B1 43110170 43110170 43110170 1

44 Electric box A 20102001 20102001 20102001 1

45 Electric box top cover 20112010 20112010 20112010 1
46 Electric box top cover 1 20112006 20112006 20112006 1

47

Rubber-sleeve flexible wire (A
type/four-core) 400205235 400205235 400205235 1

48

Rubber-sleeve flexible line (A
type/3-core) / / / 1

49 Power cable / / / 1

—74—

Explosive view of parts and components of outdoor unit

—75—

9.2 Explosive view of parts of outdoor unit

Code No. of parts Qty.

No. Name of parts

PRO AIR 107 OUT PRO AIR 109 OUT PRO AIR 112 OUT

1 Face cover 22263002 22413431 22413431 1

2 Axial flow fan 10333002 10333413 10333413 1

3 Panel 20003100 01533012 01533012 1

4 Chassis assembly 01203171

01203169

01203179 1

5 Four-way valve assembly 03023176 03023081 03023116 1

6 Four-way valve 430004022

430004022

430004022 1

7 Four-way valve and fittings 43000400

43000400

43000400 1

8 capillary assembly 030033581

030033791

030033531 1

9

Compressor and auxiliaries
GK080PAD

00100086 00100368 00100378 1

10 Big handle 26233101 26233433 26233433 1

11 valve 3/8 07100005 07100005 07100006 1

12 valve 1/4 07100003 07100003 07100003 1

13 Valve bracket 01713424 01713041 01713041 1

14 Right sideboard assembly 01303151 01302004 01302004 1

15 Electric wire holder / 71010103 71010103 /

16 Terminal board (4 phases) 42010254 42010254 42010254 1

17 Electric box 01413034 01413425 01413425 1

18 Compressor capacitor 33000017 33000017 33000017 1

19 Capacitor Clamp 02143014 02143401 02143401 1

20 Fan capacitor 33010020 33010025 33010026 1

21 Terminal board 2-8 42011103 42011103 42011103 1

22 Separator assembly 01233101 01233417 01233417 1

23 Condenser part 011032862

011032812

011032813 1

24 Rear grill 11123301

01473030

01473030 1

25 top cover assembly 01253263

01253261

01253261 1

26 Motor bracket 01703029

01703391

01703391 1

27

Drainage connector of outdoor
unit

06123401

06123401

06123401

1

28 Motor FW20F 15013156

150130671

15013067 1

29 Compressor cushion 76710232

76710240

76710224 3

—76—

Explosive view of parts and components of outdoor unit (frequency converter)

—77—

9.6 List of parts and components of outdoor unit (frequency converter)

Code No. of parts

No. Name of parts

PRO AIR I109 OUT PRO AIR I112 OUT

Qty.

1 Panel 01533005 01533005 1
2 separation board 01233381 01233381 1
3 reactor box 01413504 01413504 1
4 Reactor 143130165 43130165 1
5 Chassis assembly 01203015 01203015 1
6 Compressor EU1011DV 00100125 00100125 1
7 One-way valve 07130103 07130103 1
8 bolt 70212014 70212014 3
9 Nut with gasket M8 70310014 70310014 3
10 Valve bracket 01713041 01713041 1
11 Right sideboard 01303048 01303048 1
12 valve 1/2" 07100006 07100006 1
13 valve 1/4" 07100003 07100003 1
14 Four-way valve 430004032 430004032 1
15 Big handle 26233433 26233433 1
16 Four-way valve and fittings 430004002 430004002 1
17 Electric wire holder 71010103 71010103 1
18 Insulation spacer D 70410525 70410525 1
19 Terminal board (3 phases) GT336C 42011071 42011071 1
20 Electric box 201413051 01413051 1
21 Capacitor 1 33010054 33010057 1
22 Capacitor 2 33310054 33310054 1
23 Electric box A 20103501 20103501 1
24 Main board W923HA 30039246 30039245 1
25 Outdoor ambient temperature sensor

(15K）

390001781 390001781 1

26 Outdoor pipe temperature sensor (20K） 390000596 390000596 1
27 Air discharge temperature sensor (50K） 39000016 39000016 1
28 Electric box cover 01413048 01413048 1
29 power module 32210096 32210093 1
30 rectifier S15VB60 46010601 46010602 2
31 radiator 49010212 49010212 1
32 net cover 01473030 01473030 1
33 Condenser part 011035072 011035072 1
34 Top cover board 01253443 01253443 1
35 Motor bracket 01703391 01703391 1
36 Reactor 2 243130169 43130169 1
37 Reactor box B B01413503 01413503 1
38 Motor FW25K 150130671 150130671 1
39 Axial flow fan 10333413 10333413 1
40 Nut M6 70310131 70310131 1
41 Front panel grill 22413431 22413431 1
42 4-way valve 03023234 03023234 1
43 capillary assembly 03003618 03003618 1
44

Compressor overload

Provided together with

compressor

Provided together with

compressor

1

45 Sensor holder B 42020063 42020063 1
46 Drain adapter 06123401 06123401 1
47

compressor gasket

Provided together with

compressor

Provided together with

compressor

3

48 Capacitor 3 33010803 33010803 1
49 Capacitor 4 33010026 33010026 1
50 Electric heater belt 1 / / 1
51 Electric heater belt 2 / / 1

—78—

Explosive view of parts of outdoor unit (one driving two)

—79—

9.8 Explosive view of parts of outdoor unit (one driving two)

Code No. of parts

No. Name of parts

PRO AIR 218 OUT

Qty.

1 Taping screw 70140553 16
2 Face cover 22265251 1

3 outer cover 01433031 1

4 Axial flow fan 10335257 1

5 Motor LW68B 15015057 1
6 Motor bracket 01703027 1

7 Condenser assembly. 01103076 1

8 top cover 01255262 1

9 net cover 01473028 1

10

Outdoor pipe temperature sensor (5K）

39000009 1

11 One driving two defrosting board 2F16HS 30112003 1

12 Capacitor CBB61 (2.5uF/450VAC) 33010026 1

13 Electric box 01413003 1
14 Capacitor CBB65 (22.5uF/450VAC) 33000002 2

15 Terminal board 2-8 42011103 3

16 Capacitor Clamp 02143013 1

17 Terminal board RS9413G 42010178 1
18 3-position terminal 42011113 2

19 Four-way valve and fittings 430004002 2

20 Four-way valve 430004021 2

21 valve 3/8" 07100132 2
22 valve 1/4" 07100131 2

23 Rear panel assembly 1303044 1

24 Valve bracket 01713028 1

25 One-way valve 07130103 2
26 Compressor C-RV167H01AA 00100355 2

27 Compressor cushion 76710212 3

28 Middle separator 01233023 1

29 Chassis assembly 01203181 1
30 Handle 26235252 3

31 Front sideboard 01303023 1

32 Rubber-sleeve flexible wire 40020318 1

—80—

Explosive view of parts of outdoor unit (one driving three)

—81—

9.10 Explosive view of parts of outdoor unit (one driving three)

Code No. of parts

No. Name of parts

GE AIR 326 OUT

Qty.

1 Power cable 40020318 1

2 Face cover 22265251 1

3 outer cover 01435254 1

4 Motor bracket 01705253 1

5 Axial flow fan 10335253 1

6 Motor FW60L 15013063 1

7 top cover assembly 01255260 1

8 Electromagnetism valve FDF2AK 43000055 1

9 Balanced Capillary 03013082 1

10 Condenser (1.8light tube) 01133012 1

11 capillary assembly A 030030641 1

12 capillary assembly 2 03003260 1

13 net cover 01475252 1

14 Net cover pad / /

15 anchor bolt of compressor 70210054 6

16 Handle 26235252 3

17 Electric box 01413043 1

18 electric box cover 01413049 1

19 Power transformer SC28B1 43110170 1

20 Terminal board 2-8 42011103 3

21 Capacitor 3uF/450V 33010027 1

22 Main board KQ001 30055001 1

23 Capacitor Clamp 02143013 1

24 Capacitor 25uF/450V 33000017 2

Terminal board RS9413G 42010178 1

25

Terminal board RS9413 420111041 3

Electric wire holder 71010103 3

26

Electric wire holder 71010102 1

27 Insulation spacer 70413432 1

28 rear sideboard 01303007 1

29 Taping screw ST4.8X16 70140165 12
30 valve 1/4″ 07100131 3
31 valve 3/8″ 07100132 3

32 Valve bracket 01713044 1

33 Capillary 03013357 2

34 Electromagnetism valve FDF2A 43000054 2

35 Electromagnetic valve frame 1 01713034 1

36 Electromagnetic valve fittings / /

37 Front sideboard 01305247 1

Compressor and auxiliaries 00100353 2

Compressor overload 00120023 2

38

compressor shock absorber gasket 76710228 6

39 Base board parts 01203304 1

40 Electromagnetic valve frame 2 01723009 1

41 Separator assembly 01235253 1

—82—

Explosive view of parts of outdoor unit (one driving four)

—83—

9.12 List of parts of outdoor unit (one driving four)

Code No. of parts

No. Name of parts

GE AIR 428 OUT

Qty.

1

Power cable

40020318

1

2

Face cover

22265251

1

3

outer cover

01435254

1

4

Motor bracket

01705253

1

5

Axial flow fan

10335253

1

6

Motor FW60L

15013063

1

7

top cover assembly

01255260

1

8

Electromagnetism valve FDF2AK

43000055

2

9

Condenser (1.8 light tube)

01133012

1

10

Balanced Capillary

03013082

2

11

net cover

01475252

1

12

Net cover pad

/

/

13

capillary assembly 2

03003260

2

14

anchor bolt of compressor

70210054

6

15

Handle

26235252

3

16

Electric box assembly

01403402

1

17

electric box cover

01413049

1

18

Power transformer SC28B1

43110170

1

19

Terminal board 2-8

42011103

3

20

Capacitor 3uF/450V

33010027

1

21

Main board KQ001

30055001

1

22

Capacitor Clamp

02143013

1

23

Capacitor 25uF/450V(440V)

33000018

2

Terminal board RS9413G

42010178

1

24

Terminal board RS9413

420111041

4

Electric wire holder

71010103

4

25

Electric wire holder

71010102

1

26

Insulation spacer

70413432

1

27

rear sideboard

01303007

1

28

Taping screw ST4.8X16

70140165

16

29

valve 1/4″

07100131

4

30

valve 3/8″

07100132

4

31

Valve bracket

01713035

1

32

Capillary

03013357

4

33

Electromagnetic valve FDF2A

43000054

4

34

Electromagnetic valve frame 1

01723008

1

35

Electromagnetic valve fittings

/

/

36

Front sideboard

01305247

1

Compressor and auxiliaries

00100353

2

Compressor overload

00120023

2

37

compressor shock absorber gasket

76710228

6

38

Electromagnetic valve frame 2

01723009

1

39

Separator assembly

01235253

1

40

Base board parts

01203304

1

—84—

Maintenance

Warning

z Turn power off and pull out the power plug before cleaning air

conditioner. Or it may cause the electric shock.

z Never dampen the air conditioner, which may cause electric

shock. Never rinse the unit with water.

z Volatile liquid like thinner or gasoline would damage the

appearance of air conditioner (Only adopt soft dry cloth and
wet cloth with neutral scour when cleaning air conditioner
appearance)

Cleaning the front panel

Take off the front panel

Pull the front panel in the direction as shown by arrow with

force to remove the front panel.

Clean the front panel

Use a brush, water and neutral detergent to clean and then
dry it in the shadow.

Install the panel

Pull the front panel in the direction as shown by arrow and
take care to catch the latch.

Cleaning the air filter

Remove the air filter

Remove the front panel as shown above. Push away the latch at

the filter net with hand and take out the filter net as shown in the

diagram at the right.

Clean the air filters

Use vacuum cleaner or water rinsing to clean the filter. If the air filter is

very dirty (such as oil stain), use warm water (below 45 ) with neutral ℃

detergent dissolved to clean the air filter, and place it in a shady and
cool place for natural drying, as shown in the diagram at the right.

Install the air filters

Install the air filter properly according to the arrow direction. Let its

side that marked with "Front" face you. Then cover and clasp the

panel well.

Remarks:
Don't dry the panel or air filter directly under sun burn; don't
wash them by hot water which is hotter than 45 or burn it on ℃
fire (For these would cause fade, fire or deformation)

10

—85—

Installation guide

Select Install Location

Indoor unit

z The air inlet and outlet vent should be kept far away from obstruction so that air can be blown

to the entire room;

z Select a location where it is easy to drain condensed water and connect to the outdoor unit;
z Keep away from heat resource, steam and flammable gas;
z Select a location where it is possible to withstand the weight of indoor unit without increasing

the running noise and vibrations.

z Make sure the installation of indoor unit meets requirements of the installation dimensions

diagram;

z Make sure there is enough space for maintenance or repair and height between the indoor

unit and the floor should be greater than 200 cm;

z Place the unit in a place with at least 1m away from TV, Hi-fi and other home appliances;
z Place the unit in a place where it is easy to pull out the air filters.

Outdoor unit

z Select a location where the noise and flow of air exhaust will not affect your neighbors
z Select a location with good ventilation to ensure good ventilation for the outdoor unit;
z There should be no obstacles around the outdoor unit, which may block the air inlet or air

outlet of the unit;

z Installation location should be able to withstand the weight and vibration of outdoor unit and

make installation work proceed safely.

z Select a location without leakage of inflammable or corrosive gases;
z Make sure the installation of outdoor unit meets requirements of the installation dimensions

diagram.

Note:
Installing the air conditioner in the following locations might cause malfunction of the air
conditioner. If this is unavoidable please contact the special service center of GREE.

z Location full of machine oil.
z Seaside saline and alkali districts.
z Location containing sulphurate gas (such as sulphurate hot spring).
z Location with high frequency equipment, such as radio equipment, welding equipment and

medical equipment

z Location with special environmental conditions

11

—86—

Installing indoor unit

Installing the wall-mounting board

z Use hanging line to find a horizontal

position. Since the drainage pipe outlet is
on the left side, make the left side on the
slightly lower side when adjusting the
mounting board.

z Fix the rear panel on the wall by bolt.
z Pull the mounting board after installation

to see if it is firm enough. The mounting
board should be able to withstand the
weight of an adult (60 kg) after installation,
and the weight should be evenly shared
by each screw.

Drill the piping hole

z As shown in Fig. 11-2, pipe can go out from

6 directions. Select one of them according
to the needs.

z After determining the hole location as

shown in Fig. 11-1, drill a downward inclined
hole(φ55）.

z Wall pipes should be adopted in order to

protect tubing and cable from being
damaged when they pass through the hole.

nstalling the water drainage pipe

z Drainage hose must be placed at a

downward slant for smooth drainage.

z Do not wrench or bent, fluctuate etc, and

do not flood its end by water.(as shown in
Fig.11-3）

z When long drainage hose goes through

the indoor unit, it should be wrapped with
insulating materials.

Fig. 11-3

Installing the connecting pipe

Connect the connecting pipe with the two outlet pipes of indoor unit and tighten the joint nut of the
connecting pipe(refer to “Installation of connecting pipes” below）.

Note:

z Connect the connecting pipe with indoor unit first, and then outdoor unit.
z The curving arrangement of the pipe must be done carefully and do not damage the

connection pipe.

z Do not tighten the joint nut too much, or it will cause leakage.

Rear left piping Rear right piping

Right

Rear right

Lower right

Rear left

Lower left

Left

Fig. 11-2

Bulge

Wrenched

Immerged in the water

Fig. 11-1

—87—

Electric wiring

1. Open the panel upwardly

2. Disassemble the wire-connection cover board.

3. Pass the Power connecting cord through the entrance hole in the bottom of electric box and
bottom case from bottom to top.

4. Connect the blue wire among the Power connecting cords to terminal "N (1) ”on the connecting

board, connect the brown wire to the terminal “2”, and connect the yellow green wire (namely
ground wire) to the terminal “ ”.

5. For the heat-pump models, signal connection line (2×0.75) should be connected to the indoor
unit via connector (as shown in Fig. 11-4), and the control line should be securely clamped with
the wire clip at the bottom of the body base.

6. Reassemble the wire-connection cover board.

7. Close the panel.

Signal control line(2 X 0. 75)

Electric Box Cover

Connector

Line clamp

Fig. 11-4

Warning

z Since one end of the Power connecting cord is already connected to the machine body,

the other end of the Power connecting cord may be electrified in the process of
power-on test run of single unit; please get done with insulation so as to avoid short
circuit or electric shock.

Note:

z All electrical installations must be carried out by specialized personnel in accordance

with local laws, regulations and this manual.

z Rated voltage and special circuit for air conditioner must be adopted for the power

supply

z Electricity leakage protection switch must be installed.
z In case there is damaged power line, to avoid danger it is recommended to ask the

manufacturer, aftersale service agent or relative specialists for replacement.

z The linear diameter of the power cord should be great enough and damaged power cord

and connecting wire must be replaced by special flexible cord.

z Installation must be carried out in accordance with the national wiring regulations.

Blue

line connector

Wire clamping
chute

Yellow/green

Power connection cord

Brown

—88—

Installing indoor unit

(1) For the piping distribution of indoor unit, please refer to Fig. 11-5 and 11-6. When piping on the

left or right side, it is required to cut the tailing portion for piping left on the baseboard of the
main unit, as shown in Fig. 11-7.

z When only power cord is led out, it should go through the hole；
z Cut off tailings 1 when both the connection cord and wire are led out.

(2) Wrap the connecting piping and electric cable properly (as shown in Fig. 11-8) and pass them

through the piping hole.

(3) Hang the claw behind the indoor unit on the pothook on the wall rear panel, move the unit left

and right to check if the body is firm.

(4) Guarantee that the install height of the indoor unit should above 2.3m from the floor

①Right piping

②Right rear piping

Fig. 11-6

Fig. 11-5

Taping 2

Taping 1

through-hole

Fig. 11-7 Fig. 11-8

④Left rear piping

③Left rear piping

Signal control line

(for heat pump only)

Power connection cord

Drainage pipe

Connection pipe

Wrapping tape

—89—

Installing indoor unit

Installing the connecting pipe

z The flare end of the connecting pipe coincides with the flare

end connector of the corresponding valve.

z Tighten the nut on the connecting pipe with strength and then

tighten it by spanner (as shown in right figure).

Note: Too great torque will damage the nut

Tightening torque is given as follows:

Hexagon nut(mm) Tightening torque (N. m)

Distribution line connection

z Remove the lifting handle on right-hand panel of the outdoor unit.
z Remove the wire clip, connect and fix the Power connecting cord to terminals on the line bank,

and the wiring layout must be compatible with the indoor unit.

z Use a wire clip to fix the power connecting cord for cooling &heating unit, the control line should

be fixed as well, and then connect the corresponding connectors.

z Make sure wires have been fixed firmly.
z Reassemble the lifting handle.
z In case the power cord is not fitted with plug, the clearance between the electrodes of open

contact switch must not be less than 3 mm.

Note:

z Wrong wiring connection will cause failure of some

electric components.

z Do not pull the wires that are fixed by wire clip.
z Do not connect the wires to outdoor unit with

excessive length allowance.

Loosen the screws, and remove the top cover.

Taping

screw

Big handle

Fig. 11-10

Torque spanner

Spanner

Connecting pipe nut

Connector

Fig. 11-9

Signal control
cable 2×0.75

Bl

ue

Brown Yellow/green

Wire clamp

Power

connection cord

For heat pump only

—90—

Evacuation and leakage check

z Take down the nut cover on the break valve of the outdoor

unit.

z Aim at the center of the pipe and fully screw tight the conical

nut by hand.

z Use the spanner to screw tight the conical nut.
z Take down the valve nuts on the liquid valve and the gas

valve and take down the nuts of the freon injection nozzle.

z Use the hexagon ring spanner to screw off the core of the

liquid valve, meanwhile use the screwdriver to open the valve
core of the gas valve. At this time, there should be gas
coming out.

z After the air discharge lasts about 15 seconds and the

secondary refrigerant gas comes out, close the valve core
and screw tight the nut of the freon injection nozzle.

z Open the core of liquid valve and gas valve completely(Fig.

11- 11 ）.

z Screw tight the valve cover, then use the suds or the leak

detector to check whether there is any leak in the connection
between the indoor and outdoor units and the pipes.

z If condition allows, it is available to evacuate air inside the

unit from the gas valve core with a vacuum pump (Fig. 11-12)

Drainage of condenser of outdoor unit (no for cooling only unit）

z When heating, the condensed water and defrost water

produced when defrosting by outdoor unit can be drained
to proper place through drainage hose.

Installation method

z Clasp and install the outdoor drainage connector into the

φ25 hole on the baseboard. Then connect the water
discharge pipe to the discharge nozzle. The condensed
water and the defrosting water may be led to the
appropriate place for discharge.

Fig. 11-12

outdoor unit base board

Fig. 11-13

Gas pipe

Liquid

pipe

hexagon ring spanner

Liquid valve

Gas valve

Fluorine injection nozzle

screwdriver

Fig. 11-11

Vacuum gauge

valve cap

Small pipe

Big pipe

vacuum pump

Drainage connector

of outdoor unit

—91—

Trial running and the checking items after installation

Preparation for trial running

1 Preparation for trial running

z Before complete of entire installation, power cannot be turned on.
z Control circuit should be connected correctly, all wire be connected firmly.
z Open cut-off valve of both thick and thin pipe.
z All scattered things, especially scrap and wire etc., should be taken out from the unit.
z Open the panel and set hand switch to "RUN" mode.

2. Trial run method

(1) Turn on the power.
(2) Press On/Off of the remote controller and then press MODE to select working mode such as

COOL, DRY, HEAT and FAN to see if operations are normal.
(3) Emergency operation
Emergency running: In case the remote controller is lost, a ball pen or similar object may be used to
carry out the following operation:

z Under turn-off state, set the manual switch to AUTO mode and the unit will enter into auto run

state. The microcomputer will select automatically heating, cooling and air delivery to achieve a
comfortable effect in accordance with the indoor temperature.

z Under running state, set the toggle switch to “STOP” and the air conditioner will stop working

Checking items after installation

Items to be checked Possible malfunction due to improper

installation

Is the installation firm enough? Unit may drop, shake or emit noise
Is leakage test done? It may cause insufficient cooling (heating)

capacity

Is heat insulation sufficient? It may cause condensation or dripping
Is the water drainage smooth ？

It may cause condensation or dripping

Is the power supply voltage consistent with
the name board of product ？

Failure may occur to the system or
components may be burnt.

Is the installation of wire and pipeline
correct?

Failure may occur to the system or
components may be burnt.

Is the system safely grounded ？

Danger of electric leakage.

Does wire model conform to relevant
regulations?

Failure may occur to the system or

components may be burnt.
Is air inlet or outlet vent of indoor and
outdoor unit blocked?

It may lead to insufficient cooling capacity

(heating capacity)
Are the length of refrigerant pipe and the
charge amount of refrigerant recorded?

Fail to determine refrigerant charge

amount

—92—

Failure analysis

Failure analysis of frequency converter series

The section is concerning common failure analysis and it can be used for Fengniao DC frrequency converter series. It is adaptable for PRO AIR I109
IN / PRO AIR I109 OUT, PRO AIR I112 IN / PRO AIR I112 OUT. Prior to the analysis, it is available to carry out diagonose in accordance with the
code indication of outdoor unit or indication of outdoor indicator (for detail, refer to Section 12.2, failure indication).

Remarks！

1．Preparation before service
1

st

step: First of all, it is required to determine the type of frequency converter for service, and to check for the types and code number

for main consumable parts, and it is especially true for the controller of outdoor unit.

2

nd

step: Determine prelimiarily the parts and components needed according to the failure symptoms from the users and bring with the

service personnel to facilitate the service.

3

rd

step: In addition to the common tools such as screw driver and spanner, etc. for frequency converter repair, it is required to carry

multimeter and current clamp meter.

2．Notes for attention for repacement of power module
At present, the company has developed new power module instead of the original TM series power module. Hence, after consuming the
stored TM series power modules and distributing fittings for service, it is required to distribute the new multiple power modules
corresponding to the original TM series power module, as there are types of 20A and 30A. It is also required to remember that it is
necessary to use heat-sink plaster as fittings.

When the breaker is set ON, it will trip at
once

Measure the insulating resistance for
grounding to confirm whether there is
electrical leakage or short circuit in
the unit.

Breaker tripped or
fuse burnt out

Circuit breaker is tripped off in a few
minutes when air conditioner is set to “ON”

Insulation failure for circuit or
component of air conditioner; insulation
is broken through after heated, leading
to short-circuit or leakage. Measure the
insulation resistance or eliminating one
by one. Change the circuit breaker if
there is failure in it.

No power supply

Check power supply circuit

The power plug is not well inserted or has
bad contact

Check and insert the plug tightly

The protector pipe of the controller blows.

Replace the protector pipe of the
controller

Transformer line is shed off or with bad
contact, or transformer is with failure.

Fasten the connection. Measure the
output voltage of transformer. Change
the transformer if is not correct.

Controller is damaged

Replace the controller

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)

The power of the remote controller is not
enough.

Replace the battery

The remote controller has malfunction.

The receiver is loose or has bad contact.

Air conditioner cannot start up

The remote

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

The receiver is damaged.

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.

12

—93—

Improper setting of temperature

Adjust the set temperature

Check if cooling (heating) load is proper.

Check the forecasted load of cooling (heating).

The secondary refrigerant has leakage
or is insufficient

Perform leak detection, perform vacuum
pumping after leak was repaired, and
charge adequately amount of refrigerant
according to stipulations.

Leakage between the internal high and
low pressure of the compressor

Replace the compressor

Malfunction of four-way valve

Replace the 4-way valve

Local block of the capillary

Replace capillary

Malfunction of
refrigerant flow

Refrigerating system blockup

Observe the condensation in evaporator
and pressure values of the high-pressure
gage, and determine if the system is
blocked up. Treat the system as well.

Bad performance of heat insulation is
observed for the connection pipe of the unit.

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

Blockage of heat exchanger of
outdoor unit

To clean the adhesive dust on heat
exchanger

Air filters are blocked

Clean the filter

The fan rotation speed set is too low

turn rotate speed to HI or MEDIUM

The fan speed is lower.

Capacitor is
damaged.

Replace the capacitor

Motor is
damaged.

Replace the motor

Air circulation is
insufficient

The installation position of the
outdoor unit is not appropriate

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

Too high an outdoor temperature

It is available to install a shade guarding against sun and rain, and
if the maximum cooling capacity still could not meet the
requirements, it is recommended to change for air conditioner.

The room is not properly closed, too frequent
of personnel passing, or heater exists in the
room.

Ensure a proper enclosure of the room and it is better not use an
electric appliance emitting too much heat.

Poor cooling (heating) effect

—94—

Abnormal power supply of outdoor unit

Check the circuit according to circuit diagram

Damage of main control board in outdoor unit

Replace the main control board

Power module of outdoor unit is damaged.

Replace the power module

Improper setting of temperature

Adjust the set temperature

When unit is
cooling or heating,
both compressor
and outdoor fan
don't run

The outdoor fan motor is damaged.

Replace the fan motor

Wrong connection

Make the correct connection based on the circuit
drawing.

Damage of main control board in outdoor unit

Replace the main control board

The outdoor fan capacitor is damaged.

Replace the fan capacitor

When unit is
cooling or heating,
the compressor
runs but outdoor
fan doesn't run

Compressor malfunction

Replace the compressor

Poor contact of connection between the main
control board of outdoor unit and module

Re-fasten the connection

Abnormal input of power module

Check if input is 320V. If not, replace the rectifier

Abnormal output of power module

Replace the power module

When cooling or
heating, outdoor
fan runs,
compressor
doesn't run.

Compressor temperature is too high

Cool the compressor for 30 min before running

Wrong connection

Make the correct connection based on the circuit
drawing.

Damage of main control board in outdoor unit

Change main board of outdoor unit

When cooling or
heating, outdoor
fan runs,
compressor
doesn't run.

Burn-out or broken wire of indoor fan motor

Repair or change the fan motor

Wrong connection

Make the correct connection based on the circuit
drawing.

The fan does not
run when it is set
to supply air.

he fan capacitor has open circuit or is damaged.

Change main board of outdoor unit

—95—

Blockage or breakage of drainage hose

Replace the drainage hose

Wrap of refrigerant pipe connector is not tight
enough

Re-wrap and make it tight

Water leakage

Fan of indoor unit contacts other parts

Adjust the fan position

There is foreign substance in indoor unit

Take out the foreign substance

Compressor shakes too much

Adjust the supporting pad of the compressor and
fasten the loosened bolts

The pipes of the outdoor unit touch each other

Separate the pipes that touch each other

Touch of inner boards

1. Tighten connecting screws

2. Stick shock-absorbing clay between boards

The outdoor unit fan blade touches the shell

Adjust louver position

There is abnormal sound in the compressor

Replace the compressor

Abnormal sound
and vibration

Abnormal electromagnetic sound inside
four-way valve when heating

Circuit-short inside solenoid valve and change the
solenoid valve

Note:

1. When repairing, before the voltage between module PN is measured below 50V, do not touch any

terminal to avoid electric shock.

2. When replacing power module and rectifier, be sure to spread the radiating paste evenly.

—96—

Failure indication section

(Main board)Yellow indicator flashes 1 time

Compressor is running (this is normal condition
and the display of indoor unit is normal)

(Main board)Yellow indicator flashes 2 times

Defrost(normal indication of indoor unit)

(Main board)Yellow indicator flashes 3 times

Anti-freezing protection (display of indoor unit
displays is normal)

(Main board)Yellow indicator flashes 4 times

IPM module protection (corresponds to H5 of
indoor unit)

(Main board)Yellow indicator flashes 5 times

Over current protection (corresponds to E5 of
indoor unit)

(Main board)Yellow indicator flashes 5 times

Overload protection (corresponds to H4 of indoor
unit)

(Main board)Yellow indicator flashes 7 times

Discharge protection (corresponds to E4 of indoor
unit)

Indicator display at
outdoor unit

(Main board)Yellow indicator flashes 8 times

Compressor overload protection (corresponds to
H3 of indoor unit)

(Main board)red indicator flashes 1 time

Cooling (dehumidifying) current ≥ B(unit 25 B=7A,
unit 35 B=8A）, or heating current ≥ X(unit 25
X=8A, unit 35 X=11A）. Compressor is running
normally in limited frequency and display of indoor
unit is normal.

(Main board)red indicator flashes 2 times

Discharge temperature ≥ 103 .℃ Compressor is
running normally in limited frequency and display
of indoor unit is normal.

(Main board)red indicator flashes 3 times

Pipe temperature ≥55℃。Compressor is running
normally in limited frequency and display of indoor
unit is normal.

(Main board)red indicator flashes 4 times

Tevap

≤2℃。Compressor is running normally in

limited frequency and display of indoor unit is
normal.

(Main board)red indicator flashes 5 times

Malfunction of outdoor condenser sensor
(corresponds to F4 of indoor unit)

(Main board)red indicator flashes 6 times

Malfunction of outdoor environmental sensor
(corresponds to F3 of indoor unit)

(Main board)red indicator flashes 7 times

Malfunction of outdoor discharge sensor
(corresponds to F5 of indoor unit)

(Main board)red indicator flashes 8 times

Starting temperature is reached. This is normal
condition and display of indoor unit is normal

Indicator display
at outdoor unit

(Main board)green indicator does not flash

Communication malfunction (corresponds to E6 of
indoor unit)

—97—

Analysis or treatment of some of the display failures

1. Compressor discharge protection
Possible causes: coolant not sufficient, air filter net is blocked, condenser is of poor ventilation or air flow
is shorted, there is non-condensed gas in the system (such as air, water, etc.), capillary assembly
(including filter) blockage, inner leakage in the 4-way valve, leading to mistaken action; compressor itself
is with failure, failure is with protection relay itself, failure in exhaust temperature sensor and too high an
outdoor temperature.
Remedy: refer to the malfunction analysis in the above section.

2. Low voltage over current protection:
Possible reason: Sudden drop of supply voltage.

3 Communication Malfunction:

Remedy: Check if communication signal cable is connected reliably

4 Open or short circuit with temperature sensor:

Remedy: Check whether sensor is normal, connected with the corresponding position on the controller
and if damage of lead wire is found

5. Compressor over load protection:
Possible reasons: shortage of refrigerant; blockage of capillary and increase of suction temperature;
improper running of compressor, burning in or stuck of bearing, damage of discharge valve; malfunction
of protector.
Remedy: adjust the coolant amount, change capillary, replace the compressor, check the compressor
with a multimeter and see if it conducts when it is not over heated, and replace the protector if it does not
conduct.

6. System malfunction
i.e. overload protection. When pipe temperature (Check the temperature of outdoor heat exchanger
when cooling and check the temperature of indoor heat exchanger when heating) is too high, protection
will be activated.
Possible causes: too high an outdoor temperature when cooling, air ventilation outdoor is not sufficient
or failure in coolant flow.
Remedy: refer to the malfunction analysis in the above section.

7. The cooling pressure is about 0.9Mpa and the heating pressure is about 3.0 Mpa when the frequency

converter split system is operating normally. If the pressure is lower than the normal range, there is
possibly leakage. If it is higher than the normal range, it is possibly due to too much coolant or air mixing
in the system. The pressure also depends on various conditions.

8. IPM module protection(H5):

Remedy:

Check if the voltage between power module P and N is too low (when input
voltage is lower than 178V, the compressor will stop); if the current is too high
(when the input D.C. is higher than 46A, the compressor will stop). In normal
condition, voltage between P and N should be 310V

Normal

Abnormal

Check the power circuit of outdoor unit(PTC resistor,
rectifier bridge, reactor aNd capacitor for failure).

Temperature of power module is too high,

which causes overheating protection

Check if radiating paste is
spread evenly or radiating
sticker is stuck well; if screws
of power module is tightened

Reinstall power module
and re-spread radiating
paste or stick radiating
sticker on the radiator of
power module.

Still indicating protection

Confirm the setting status of outdoor unit
(cooling)

Poor radiation, heat exchanger is dirty

Remove obstructions
and clean

Nothing abnormal

—98—

Confirm if outdoor fan motor is running; unplug the three
connecting wires between U, V, W of compressor and
power module. Turn on the unit to see if outdoor fan runs
normally (more than 3 minutes)

Outdoor fan

runs.

Confirm if there is voltage output and balance of
voltage between any two phases of U, V and W.

Outdoor fan stops running.

Yes

No

Measure the voltage of outdoor
fan connector

Whether module type
is correct

Replace the power
module

No voltage

With voltage

Abnormal

Norm

al

Change main board

of outdoor unit

Replace the fan

motor

Normal Abnormal

See Whether cylinder

of compressor is stuck

Replace compressor

If the unit runs normally after connected
with the new compressor for trial run, the
cylinder of original compressor is stuck

Replace the module
with correct type

Measure 3-phase

resistance for compressor .

—99—

Failure analysis of common types of systems

Adaptable for systems except PRO AIR I109 IN / PRO AIR I109 OUT, PRO AIR I112 IN / PRO AIR I112 OUT

When the breaker is set ON, it will trip at
once

Measure the insulating resistance for
grounding to confirm whether there is
electrical leakage or short circuit in
the unit

Breaker tripped or
fuse burnt out

Circuit breaker is tripped off in a few
minutes when air conditioner is set to “ON”

Insulation failure for circuit or
component of air conditioner; insulation
is broken through after heated, leading
to short-circuit or leakage. Measure the
insulation resistance or eliminating one
by one. Replace the circuit breaker if
there is failure in it.

No power supply

Check power supply circuit

The power plug is not well inserted or
has bad contact

Check and insert the plug tightly

The protector pipe of the controller blows.

Replace the protector pipe of the
controller

Transformer line is shed off or with bad
contact, or transformer is with failure.

Fasten the connection. Measure the
output voltage of transformer. Change
the transformer if is not correct.

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)

Controller is damaged

Replace the controller

The power of the remote controller is not

enough.

Replace the battery

The remote controller has malfunction.

The receiver is loose or has bad contact.

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

Receiver head is damaged.

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.

Too low supply voltage

Check the voltage of power supply. If it is lower than
the rated voltage for 10%, check for the reason.
Improve the power supply conditions,

Failure in controller(IC2003 is damaged, relay
coils are in parallel, capacitor is leak,or relay
is damaged)

Replace the controller

Connection is shedding off or is mistaken.

Connect correctly according to the diagram.

When unit is
cooling or heating,
both compressor
and outdoor fan
don't run

Improper setting of temperature

Adjust the set temperature

Air conditioner cannot start up