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rvic M nual

Wall split type

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Table of Con tents

1. Summary .............................................. .3

2. Model explaining .............................................. .4

3. Use and installation ............................... .4

4. Exploded view and part list.............................................. 20

5. Operation principle. ................................................ 28

6. Parameter................................................. 28

7. Wiring diagrams. .................................................. 30

8. PCB principle chart................................................. 32

9. Part list of PCB ..................................................... 32

10. PCB function . .......................................... 34

11. Troubleshooting. ........................... 40

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1. Summary

1.1indoor unit

Model 48

1.2outdoor unit

9000BTU 12000BTU

model CQS-25H3A-G48AY1 CQS-35H3A-A48AH1

indoor unit 790270180 790270180

Net Dimension

outdoor unit 700225500 795255540

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2Model explainingc

Improve an ordinal number

Divide the body outdoors box a body code

External appearance characteristic code

Separately the body indoor machine(or whole type) style code

Code of refrigerant typeno code - R22C-R407cA-R410a

Power type1:115v/60Hz 2:220V/60Hz3:220-240V/

50Hz4:240V/50Hz

Main function code: c-Cold breeze type;H-Hot pump type;A-Hot

pump the type take assistance electricity to heat;E-The electricity

heat

Capacity code: x1000W

Separately the body pit code inside the indoor machine(or whole

type)

Structure form code

Special craft code:Q-Deal with contact quickly;S-Soft start;d-

Outside tube in addition to frost

The weather type code(T1 type code abridge)

"C" CHIGO brand

as: CQS-25H3A-G48AY1

T1 climate type,deal with contact quickly ,hot pump type, wall split type air conditioner, cooling capacity

is 2500Wpower is 220-240V/50Hz/1PHrefrigeration is R410A,the kernel of indoor unit is 418the pattern

no. is 48first time design, outdoor unit is 1HP of 2003 year

Indoor unit modle isCQS-25H3A-G48Aoutdoor unit model isCQS-25H3A-Y1

3. Use and installation .

BASIC ACCESSORIES

This Installation section explains how and where to connect this new air conditioner. Please read make sure

all accessories are included as shown below and read manual thoroughly. This Installation section is provided

to assist the per-son knowledgeable in air conditioner installation and should not be installed by anybody

who is not thoroughly familiar with this type of installation. Please contact a professional installer if

necessary.

ACCESSORIES SUPPLIED WITH THE UNIT:

No Part Name Q'ty Remark No Part Name Q'ty Remark

1 Remote Controller 1 3 Battery 2

2 Remote Holder 1

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Before installation:

Selection of installation positions for indoor unit

To be installed at the position where the air delivered from the unit can reach every corner of the room

Avoid to biockage the air inlet or outlet of the indoor nit

To avoid too much oil smoke or steam

Avoid possible generation infiow, lingering or leakage of flamm gasee

Avoid high-frequency facilities (such as high frequency arc welders etc.)Not to install a fire alarm near the air outlet.

To avoid the places where acid solutions are frequently used

[Selection of installation positions for indoor unit]

To be installed at the position where the air delivered from the unit can reach every comer of the room;

To avoid being affected by the outdoor air;

To avoid blockage to the air inlet or outlet of the unit;

To avoid too much oil smoke or steam;

To avoid possible generation,inflow,lingering or leakage of flammable gases;

To avoid high-frequency facilities(such as high frequency arc welders,etc,)

To avoid the places where acid solutions are frequenty used;

To avoid the places where some special sprayers(sulfides) are frequently used

Not to install on top of the musical instruments,TV,computer etc,valuable appliance.

Not to install a fore alarmning device near the air outlet of the unit(during operation,the fire alarm device might be

erroneously triggered by the warm air from the unit);

Make sure of enough space for installation and maintenance To take into consideration the operational convenience and safety in installation,it is recommended ti ensure enough

space between the unit and the walls,

Attention:lf there are some additional function devices to install on the air conditioner,Besure add

to the installation space for the function devices

Height limits of indoor and outdoor units Either the indoor unit or the outdoor unit can be higher,but the height difference must comply the stated

requirements Try to reduce the bending of the piping line as much as possible so as to avoid possidle negative impacts

upon the performnances of the units

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[Selection of installation positions rot outdoor unit]

To install the outdoor unit at the places which can stand the load of the machine weight and will

not cause big vibrations and noises;

To install the unit at the places not to exposed to rain or direct sunshine,and the places with

good ventilation;

The noises generated from the unit will not affect the neighboring places;

Do not install the unit on non-metal frame;

Not to install the unit at the places where there might occur the generation,inflow,stay or leakage

of inflammable gases;

pay attention to the drainage of the condensed water from the base plate during operations;

To avoid the air outlet being directly against the wind.

Detailed space requirements around the outdoor unit

[lnstallation fixture of indoor unit]

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4Indoor outside explosion the diagram and spare parts catalogue4.1 CQS-25H3A-G48AY14.1.1 Explosive view of indoor unit

4.1.2 Spare parts list of indoor unitPart No. Qty

No. DescriptionCQS-25H3A-G48AY1

1 Louver 100420003/100420083 2

2 Outlet part 391200006 1

3 Left angle plate 100360001 1

4 Base 100060106 1

5 Cross flow fan 100010016 1

6 Fan Bearing 110010603 1

7 Connecting Cable 342300055 18 Quick coonector 979900183 1

9 Evaporator assembly 972900618 1

10 Evaporator left fixed plate 109990108 1

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11 Screw cover 109990023 2

12 Middle frame 391070007 1

13 Air Filter 100190111 2

14 Display box cover . 1

15 Disp;ay box 100410004 1

16 Front Panel 391022065 1

17 Remote controller 336815006 1

18 Roomtemp.Sensor Holder 100280105 1

19 Pipe Clamp 100430025 1

20 Eliminator 100420002 1

21 Evapora torright fixed plate 109990109 1

22 Motor platen 100130003 1

23 Motor 030020173 1

24 Wire Clip 391110017 1

25 Power Cord 050010042 1

26 Terminal Board 030090005 127 Display lamp panel 331800039 1

28 Tube Temp.Sensor 079990030 1

29 Electric control plate 331300107 1

30 Room Temp.Sensor 049990012 1

31 Electric box 100100035 1

32 Transformer 030180061 1

33 Connecting Wire 120310028 1

34 Base right angle plate 100300003 1

35 Wall-mounting frame 020100010 136 Step motor 320273001 1

37 Step Motor plate 320273001 1

38 Crank connecting rod 100420082 1

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4.1.3 Explosive view of outdoor unit for 1HP

4.1.4 Spare parts list of outdoor unitPart No. Qty

No. DescriptionCQS-25H3A-G48AY1

1 Front Grill 020120002 1

2 Grill Clip 109990256 8

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3 Front Plate 020070001 1

4 Small handle 100050001 1

5 Nut 150020009 1

6 Gasket 150030013 1

7 Axial flow fan 100030013 1

8 Motor 030020201 1

9 Motor support 313040004 1

10 PE Sponge PE 090020234 1

11 Base 020010129 1

12Anti-vibration pad for the

compressor 010011455 3

13 Compressor 302114004 1

14 Nut 010011578 1

15 Gasket 010011456 3

16 Nut 150020003 1

17 Top panel 020080001 1

18 PU Sponge 090020226 1

19 Partition board 020030001 1

20 Electric installation board 020130006 1

21 Compressor Capacitor 030010015 1

22 Capacitor Clamp 020140006 1

23 Fan Capacitor 030010005 1

24 Terminal Board 030090025 1

25 Wire Clip 321100011 1

26 PU Sponge 090020227 1

27 Condenser 372100103 1

28 tube temp. sensor wire 338000008 1

29 Copper pipe or sensor 079990030 1

30 Capillary Assy 971900314 1

31 Damping rubber 110030023 1

32 Drainpipe for the condensor 360510003 1

33Intake pipe for the

condensor 360440093 1

34 4-way Valve 973500175 1

35 Discharge pipe 360220111 1

36 Damping block 110020011 1


38 Suction pipe 360120107 1

39 Quick connector 1 1 351600014 1


41Low-pressure Connecting

Pipe 979900184 1

42High-pressure Connecting

Pipe

361300062 1

43 Filling valve 359000004 1

44 Valve installation plate 313020016 1

45 Large handle 100040001 1

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46 Right panel 313060035 1


48 Connecting Cable 342300046 1

49 Electric heater 320440005 1

50 Electric heating wire clip 313990014 4

4.2 CQS-35H3A-A48AH1

4.2.1 Explosive view of indoor unit

4.2.2 Spare parts list of indoor unitPart No.

No. DescriptionCQS-35H3A-A48AH1

Qty

1 Louver A 100420003 1

2 Louver B 100420083 1

3 Swing Louver 100420007 12

4 Connecting rod 100420072 3

5 Guide Louver Bearing 100420008 6

6 Outlet part 100090110 1

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7 Left angle plate 100360001 1

8 Base 100060108 1

9 Cross flow fan 100010016 1

10 Cross flow fan bearing 1

11 Fan Bearing 110010603

1


13 Quick connector 979900178 1

14 Evaporator assembly 972901480 1

15 Evaporator left fixed plate 109990108 1

16 Remote controller 336815006 1

17 Screw cover 109990023 2

18 Middle frame 391070007 1

19 Front Clip 391220004 4

20 Air Filter 100190127 2

21 Cold Catalyst 119990011 1

22 Display box cover

100410004 123 Display box 100410004 1

24 Front Panel 391022065 1

25 Middle frame coverplate 100080034 1

26 Room temp. Sensor Holder 100280105 1

27 Insert Block 079990240 1

28 Copper pipe of sensor 079990030 1

29 Pipe Clamp 100430025 1

30 Evaporator right fixed plate 109990109 1

31 Motor platen 100130003 1

32 Motor 030020173 1

33 Electric box cover 100100041 1

34 Display lamp plate 331800039 1

35 Tube Temp. Sensor 079990030 1

36 Room Temp. Sensor 049990012 1

37 Electric control plate 331300009 1


39 Transformer 030180061 1

40 Electric box 100100035 1

41 Wire Clip 391110018 1


43 Power Cord 050010050 1

44 Right angle plate 100300003 1

45 Wall-mounting frame 020100010 1

46 Screw 150010019 2

47 Step motor 320273001 1

48 Motor fixed plate 100420002 1

49 Crank connecting rod 100420082 1

50 Upper crank 100420001 1

51 Lower crank 100420081 1

52 Thermal insulation pipe 099990080 1

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4.2.3 Explosive view of outdoor unit for1.5HP

4.2.4 Spare parts list of outdoor unitPart No. Qty

No. DescriptionCQS-35H3A-A48AH1

1 Front Grill 020120015 1

2 Grill Clip 109990256 8

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3 Front Plate 020070056 1

4 Small handle 100050021 1

5 Nut 150020009 1

6 Gasket 150030018 1

7 Axial flow fan 393010001 1

8 Motor 320222005 1

9 Motor support 313040002 1

10 PE Sponge PE 090020234 1

11 Base 313011093 1

12Anti-vibration pad for the

compressor 305146005 3

13 Compressor 302114009 1

14 Gasket 305142002 3

15 Nut 305143002 3

16 Top panel 020080002 1

17 Partition board 313030014 1

18 PU Sponge 090020027 1

19 Electric installation board 020130006 1

20 Compressor Capacitor 030010017 1

21 Capacitor Clamp 020140006 1


23 Fan Capacitor 030010005 1

24 Wire Clip 321100003 1

25 PU Sponge 090020028 1

26 Condenser 372100086 1

27 Tube temp.sensor wire 338000008 1

28 Copper pipe or sensor 079990030 1

29 4-way Valve 973500062 1

30Intake pipe for the

condensor 360450021 1

31 Capillary Assy 971900295 1


33 Filter 361910002 1

34 Right panel 020060041 1

35 Large handle 100040002 1




39Low-pressure Connecting

Pipe 979900176 1

40High-pressure Connecting

Pipe 361300062 1

41 Filling valve 359000004 1

42 Valve installation plate 020020008 143 Drainpipe for the condensor 360540042 1

44 Discharge pipe 360220103 1

45 Damping block 110020011 1

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46 Suction pipe 360130149 1



49 Electric heater 320440005 1

50 Electric heating wire 313990014 4

5. Operation principle

outdoor unit

outdoor fan

1

14

13

215

connection pipe12

coolingpay attention to sealing

heating

163

4

5

7

8

6

indoor fan

1011

9

indoor unit

connection pipe

1.compressor 2. 4-way value 3.condenser 4.flow divider for condenser 5.Non-return valve 6.auxiliary capillary

7.cooling capillary 8.high-pressure valve 9.flow divider for evaporator 10.evaporator 11. pipe temp. sensor for

evaporator 12.low-pressure valve 13.Vapor liquid separator 14.low-pressure switch 15. high-pressure switch 16pipe

temp. sensor for condenser

Cooling cycly compressor4-way valuecondenserflow divider for condenserNon-return valvecooling capillary

high-pressure valveflow divider for evaporatorevaporatorlow-pressure valve4-way valueVapor liquid separator

compressor.

Heating cyclycompressor4-way valuelow-pressure valveevaporatorflow divider for evaporatorhigh-pressure valve

cooling capillaryauxiliary capillaryflow divider for condensercondenser4-way valueVapor liquid separator

compressor.

NoteTo the model of RF or LF beginning, use outdoor unit model to express the whole unit.

6. Parameter Performance parameter

Model CQS-25H3A-G48AY1 CQS-35H3A-A48AH1Apattern NO. 48 48

Power supply Ph-V-Hz 220-240V/50Hz 220-240V/50Hz

Cooling Cooling capacity W 2780 3590

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Cooling Input W 865 1120

Cooling Rated current A 4.0 5.1

EER w/w. 3.21 3.21

Heating Capacity W 2780 3680

Heating Input W 770 1020

Heating Rated current A 3.5 4.7Heating

COP w/w. 3.61 3.61

Max. input consumption W 1660 2170

Max. current A 8.2 10.6

Model PA108X1C-4DZDE PA140X2C-4FT

Type ROTARY ROTARY

Brand TOSHIBA TOSHIBA

Capacity W 2570/2670 3365/3385

Input W 885/915 1160/1200

Start electric current A 21.7 2601

Thermal protector inner inner

Compressor

Capacitor uF 25 35

Model YDK-16-4 YDK-16-4

Input W 47 47

Capacitor uF 1.2 1.2Fan motor

Speed r/min 1350 1350

Fan motor diameterheight mm 93633 93633

Air flow m3/h 500 600

Noise level dB(A) 29-39 35-42

Net Dimension (W*H*D) mm 790*270*180 790*270*180

Packing Dimension (W*H*D) mm 875*345*340 875*345*340

Indoorunit

Net/Gross weight Kg 12/14 12/14

Model YDK-30-6 YDK-35-6A H

Input W 85 67

Capacitor uF 2 2Fan motor

Speed r/min 890 900

Fan motor diameterheight mm 384136 401115

Noise level dB(A) 49 54

Net Dimension (W*H*D) mm 700*225*500 795*255*540

Packing Dimension (W*H*D) mm 825320535 920*335*585

Net/Gross weight Kg 30/32 36/40

Outdooruni

Refrigerant type g R410A/610g R410A/1020g

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7.Wiring diagrams

7.1 CQS-25H3A-G48AY1

Indoor unit:

Outdoor unit:

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7.2CQS-35H3A-A48AH1

Indoor unit:

Outdoor unit:

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A15 0101702601 10K RT-1/4W 9

R3R16R17R19

R22R23R25R31

R48

A16 0101701201 330 RT-1/4W 1 R14

A17 0101701401 510 RT-1/4W 2 R49R52

A180101102201 4.3K RJ-1/4W 2 R18R20

A19 0101701901 R carbon film 2 K RT-1/4W 2 R4R37

A20 0101701301 R carbon film 390 RT-1/4W 1 R35

A21 0101703401 R carbon film 300 K RT-1/4W 1 R15

A22 0101200503R oxidation film

220 RY-1W 1 R36

A23 0101701001R carbon film

220 RT-1/4W 2 R50R51

A24 01042002021.2F5%CBB61

450VAC1 CFI

A25 0104300201 473/275V 1 C20A26 0104300301 104/275V 2 C21C22

A27 0104600811 102 8C3C4C11C12

C15C16C19C25

A28 0104601311 104 10C1C2C5-C9C13

C17C26

A29 0104101102 1000F/35V 1 E7

A30 0104101001 220F/16V 1 E2

A31 0104100401

capacitance

10uF/25V 1 E5

A320701100201 XH-2A white 1 CNC

A33 0701100301 XH-3A white 1 CNW

A340701100302

XH-3A

yellow 1 CND

A35 0701100501 XH-5A white 1 CNM

A36 0701100401 XH-4A white 1 CNG

0701100601 XH-6A white 1 CNEA37

0701200301 VH-3A white 1 CNB

A38 0701200401 VH-5A white 1 CNU

A39 1501300600

connector

XH-2A white 1 CNC

A401501300600

Compressor

relay HF2160-1A-12DE1 52C

A41 2104000100 safety clip 520mm 2 FUSE

A42 0116100100

I nsur ance

t ube 3.15A/250AC 1 FUSE

A43 9803010400 safety ZGAY/621-10-126 1 ZR

A44 0304200500Si ngl e- I nt er

cal at i on 6.3 KET 1 N2

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A45 2903300103 jumper 0.510mm 9 J1-J6J8-J10

A46 0125300100 inductance 0.043mH 1 L1

A47 0119200601 button A06-(c)9.5mm 1 SW1

A48 1303000211 transformer B03-01A

A49 1102101680 jumperJF1DJ46/48DCP21

2-Q

1

156 113.5 B items cooling and hot plate materialsB01 0107701301 diode IN4148 2 D6D9

B02 1501200400 relay JZC-32F 12V 2 X3X1

B03 2903300103 jumper 0.510mm 1 J7

B04 0304200500Si ngl e- I nt er

cal at i on6.3 KET 2 20SFMO

B05 0107100201 audi on 9013 1 Q2

B06 0101702201resistance

47K RT-1/4W 1R13

C items Electric heating materialsC01 diode IN4148 3 D6D9D10

C02 relay JZC-8F 12V 2 X1X3

C03 relay SJ-S-112DM 1 X210A/250VAC

10A/250VAC

C04 jumper 0.510mm 1 J7

C05

Si ngl e- I nt er cal at ion

6.3 KET 2 20SFMO

C06Si ngl e- I nt er cal at ion

4.8 1 HEAT

C07 audion 9013 1 Q2

C08 resistance 4.7K RT-1/4W 1 R13

D items Bl ackout memory mat er i al sD01 0107501000 Mani f ol d AT24C02 1 IC7

D02 0104601311 capacitance 104 1 C18

E items Ani on mat er i al sE01 0304200500

Singer-zntercalation

6.3 KET 1 N1

10 PCB function:NOTE: Ts is the set temperature, Tr is indoor room temperature, TP1 is indoor coil pipe temperature, TP2 is outdoor coil pipe

temperature.

Display panelLED

according to display mode: dehumidification, cooling, ventilation, heating, auto, sleep, fan speed, swing, timer, indoor

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fan running.

wind speed indication correspond fan speed of indoor blower fan.

Cooling

Start up the compressor: when the room temperature is more than Ts+1, compressor start-up

Shut down the compressor: when the room temperature is less than or equal to the set temperature Ts-1,

compressor shutdown

When the temperature of coil pipe of the indoor units is less than or equal to 1 for one minute and the

compressor has continuous run for more than ten minutes, the compressor and outdoor blower fan shut down

through the electric control board and the indoor blower fan is running at low speed.

When the temperature of coil pipe of the indoor units is more than or equal to 7 and the compressor has

shutdown for more than three minutes, the compressor and outdoor blower fan start to run and the indoor blower

fan is running at set speed.

When the temperature of coil pipe of the indoor units is equal to or less than 10 for three minutes in the

compressor has continuous run for three minutes, the compressor, indoor and outdoor blower fans and swinging

wind shut down. Restart up six minutes later; if the above situations appear again within six minutes, all the

outputs are shut down through the electric control board and display failure.

After the compressor runs five minutes, the lamp flashes 4 times per six seconds or display E4 if the temperature

of indoor coil pips is more than 25 in the continuous 20 minutes. The controller will automatically shut down if

the temperature of indoor coil pips is more than 25 in another continuous 20 minutes, that is the abnormality

protection of outdoor units and the indicator lamp keeps its former state of flashing. If the temperature of indoor

coil pips is less than 25 in the second 20 minutes or the compressor shuts down, the electric control board willstore to the normal display and the time is restarted when starting up the compressor next time.

Heating (only applicable to heat pump units)

Start up the compressor: when the room temperature is less than Ts-1, compressor start-up

Shut down the compressor: when the room temperature is more than or equal to the set temperature Ts+3,

compressor shutdown

The electric heating start-up in the heating mode shall meet the following conditions: start up the compressor

and indoor blower fan none defrost TP1< 49 Tr 20.

The electric heating shutdown in the heating mode shall meet one of the following conditions: shutdown

indoor blower fan Tr 23 TP150.

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In the heating mode, the indoor flower fan can be set as high/ medium/ low /automatic running mode by remote

control. however the anti cool air function is prior. In the heating mode, the anti cool air control function is to

control shutdown of the indoor blower fan by detecting the temperature of coil pipe of evaporator so as to attain

the purpose of preventing cold air from blowing.

For the waste heat emission function in the heating mode, in principle, the indoor blower fan shall be on for

fifteen seconds after the electric heating is closed.

When the temperature of coil pipe of indoor units is more than or equal to 56, the outdoor blower fan shuts

down and it enters the overload protection; when the temperature of coil pipe of indoor units is less than or equal

to 52, the outdoor blower fan starts up and it exit the overload protection.

When the temperature of coil pipe of indoor units rises to 63, the compressor and outdoor blower fan are closed

and two minutes later, the change valve is closed. The indoor blower fan is running at the set speed. Restart up six

minutes later; if the above situations appear again within ten minutes, all the outputs are shut down through the

electric control board and display failure.

When you press turbo button of remote, the air conditioner enter turbo running, compressor ,outdoor blower fan

and four-way valve turn on all along, indoor blower fan run at high speed and it must meet start condition, turbo

indication is light.

After the compressor runs five minutes, the lamp flashes 4 times per six seconds or display E4 if the temperature

of indoor coil pips is less than 30 (heating) in the continuous 20 minutes. The controller will automatically shut

down if the temperature of indoor coil pips is less than 30 in another continuous 20 minutes, that is the

abnormality protection of outdoor units and the indicator lamp keeps its former state of flashing.

Defrost (only applicable to the heating mode)

1. the intelligent defrost

In the heating mode, the electric control board checks and compares the temperature of indoor room and indoor coil

pipe after the compressor works for a while; judge whether the outdoor heat exchanger part is frosted or not according to

conditions such as the change of indoor coil pipe temperature; if it is judged as frosted, it automatically enters defrosting

process. When defrosting, close the indoor and outdoor blower fan and four-way valve.

2. Outdoor PCB for defrost.

In the heating mode, the unit defrost by outdoor control board

unit start defrost shall all meet the following conditions

acompressor continuous running over 7 minutes

bdefrost relay shut off-5

ccompressor cumulate running time over 50 minutes.

first defrost interval time is 50 minutes, later defrost interval time decided by last defrost time.

Defrost time(minute) Next defrost interval time(minute)

15 30

10--15 40

7--10 60

3--7 70

3 802end defrost condition(meet one of follows)

adefrost time have fifteen minutes.

bdefrost relay turn on8

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cpress ON/OFF key in defrost process.

3. Outdoor sensor for defrost

unit start defrost shall meet one of the following conditions

a. compressor cumulate running time over 30 minutes and it continuous running over 3 minutes, the

temperature of coil pipe of the outdoor units is equal to or less than 15 for one minutes (Tp2-15).

b. compressor cumulate running time over 40 minutes and it continuous running over 3 minutes, the

temperature of coil pipe of the outdoor units is equal to or less than 5 for one minutes (Tp2-15).c. Air conditioner first power on or it wait over 30 minutes ,the temperature of coil pipe of the outdoor units is

equal to or less than 2 (Tp2-15)

end defrost condition(meet one of follows)

a. the temperature of coil pipe of the outdoor units is more than 15 (Tp2-15).

b. defrost time have fifteen minutes.

Sequence chart in defrosting mode

Dehumidification

Dehumidification running is to eliminate the water vapor in the air by using the cool circulating capacity, but the

dehumidification will not decrease the indoor temperature in great deal. The air conditioner automatically repeats on

and off circulation according the room temperature, which is shown in the following figure.

indoorblower fan

C

C

door

blower fan

Tr

shutdown shutdownshutdown shutdown shutdown

shutdownshutdownshutdownshutdownshutdown

low speed

Tr10

shutdown

start-up

start-up start-up

start-up start-up

start-up start-up

start-up

forbiddehumidify

In the dehumidification mode, the indoor fan is running at the low speed for twenty seconds at first, then it select

working mode.

Automatic mode

Conditions for entering the automatic running mode are: After power-up for the first time, start up and select the

automatic operating mode of remote or press emergency key, the working mode depends on Tr and if the working

mode had set , it doesnt change by Tr and the default set temperature is 25 .

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25

Tr

21

26 C

mode

Time on and time off

When the time on or time off is used, the clock of remote controller shall be corresponding to the current clock and the

timing times is less than or equal to 24 hours, when the timing time is reached, unit will start-up or shutdown.

Sleep functionWhen the sleep key is press, air conditioner enter sleep state, indoor blower fan running at low speed, only sleepindication display.

Emergency key function

There is a forcible execution key on the panel of indoor units and the air conditioner can run by pressing the key when

the remote control is out of work or missing.

When pressing down the forcible execution key, then power up and enter the self-check program.

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Failure display

Display state

LEDserial failure

Running lamp Timer lampLCD

Indoor unit

1 Indoor TEMP. sensor failure Flash 1 time/8 SEC light E2

2 Indoor coil pipe TEMP. sensor failure Flash 2 time/8 SEClight

E3

3 Overheat (frost) protection Flash 3 time/8 SEClight

E8

4 Pump failure Flash 4 time/8 SEClight

E9

5 Indoor blower fan failure Flash 6 time/8 SEClight

E5

6 Outdoor feedback failure Flash 7 time/8 SEClight

E7

7 Open door failurelight

Flash 3 time/8 SEC E0

8 Outdoor coil pipe TEMP. sensor failurelight


9 (EEPROM) communicate failurelight


Outdoor unit

1 Outdoor TEMP. sensor failurelight


2 Outdoor coil pipe TEMP. sensor failurelight


3 Over current protect of compressorlight


4 TEMP. sensor of exhaust failurelight


5 Communicate failurelight


6 Module protectionlight


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11 . TROUBLE SHOOTING

Is CN (Tr sensor connector)

connected properly?

Is Tr sensor resistance value

(5KO at 25? ) normal?

Indoor P. C. board is defective. Replace P. C. board.

Connect CN properly.

Replace TA sensor.

Is CN (TP1 sensor connector)

connected properly?

Is TP1 sensor resistance value

(5KO at 25? ) normal?

Indoor P. C. board is defective. Replace P. C. board.

Connect CN properly.

Replace TC sensor.

YES

YES

YES

YES

NO

NO

NO

NO

Indoor Tr sensor

error

Indoor TP1 sensor

error

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Turn off power

supply once, andturn it on again.

Does

compressor

continue to

operate?

Start to operate indoor

unit in cooling

operation at airflow

level LOW,wait

three minutes..

Does indoor

fan operate?

Fan motor

operatesnormally.

Is it possible to detect AC

220V between

pin(high/middle/low) andpin(common) of motor

connector .

Replace indoor

fan motor.

Replace main

P.C. board.

Replace

bearing.

YES

YES

YES

NO

NO

NO

Turn off indoor unit and rotate

cross-flow fan by hand when the

unit is on standby.Is it possible to

rotate cross-flow fan by hand

properly?

Only indoor fan motor does not operate.

Is capacitor of indoor fan ok?

YES

NO

YES

Replace

capacitor

NO

(1) Is it possible to detect the power supply voltage (200-240V) between L and N on the terminal

block?

(2) Does the indoor fan motor operate in cooling operation?

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Compressor does not operate.

Turn on power supply.

Does compressor delay

three minutes by

temperature changes or

others?

Does OPERATION

indication indicate?

Is it possible to detect AC

220-240V on terminal

block or contactor of

compressor?

Are all of compressor

cords normal?

Is compressor motor

winding normal?(Check

winding resistor.)

Is capacitor for

compressor normal?

Is overload relay normal?

Does compressor start?

Does compressor stop

after a while?

Is gas quantity normal?

(Check gas pressure.)

Microcontroller is defective or

miniature relay is defective..

Is resistance value of room

sensor (Tr) and heat exchanger

sensor (TP1) normal?

Room sensor or heat

exchanger sensor is

defective.

Replace room sensor

or heat exchanger

sensor.

Compressor is defective.

Capacitor is defective.

Overload relay is defective.


Gas shortage (Gas leak)


Replace P.C. board.

Rewire or replace

defective cords.

Replace compressor.

Replace capacitor.

Replace overload

relay.

Supply gas.

Replace compressor.

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

NO

NO NO

NO

NO

NO

NO

NO

NO

NO

Check power supply.

Replace compressor.

Wait three minutes

(1) Is the room temperature higher than the preset temperature in cooling operation?

(2) Is the crossover cable connected properly?

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Replace

P.C. board.

Is receiver on

indoor unit exposed

to direct sunlight?

Batteries are

exhausted.

Press START/STOP

button.

Is there any thyristor

fluorescent light

nearby?

Does indoor unit

operate when

moving remote

control near receiver

or indoor unit?

P.C. board isdefective.

Is transmission

mark indicated?

Press RST button

on remote control

with tip of pencil.

Press START/STOP

button.

Does radio sound is

affected by remote

control when a

signal is transmitted

at distance of 5 cm

from radio?

Does indoor unit

start to operate by

automatic restart

function?

Is transmission

mark indicated?

Does indoor unit

beep and operate?

Remote control is

defective.

Keep indoor unit

away from

thyristor

fluorescent light.

Avoid direct

sunlight.

Replace

batteries.

Normal

operation

Replace remote

control.

The unit does not beep at all.

OPERATION indication on

indoor unit is not indicated.

NONO

NONO

NO

NO

NO

YES

YES

YES

YES

YES

YES

YES

YES

NO

YES

YES

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Trouble

Is the power

applied to the unit?

Check power supply mains or

interconnection wires

Is the power normal? check

the voltage between L&N of

terminal block

Check the wiring of indoor and

outdoor

Press the power ON/OFF button

of wire control or remote control

YES

YES

NO

NO

Does the beeperbeep?

Is the display all

off?

Check the connector on display

PCB connected to control PCB

Check the display PCB itself

Is the unit display

normal?

Does outdoor unit run?

Does the

compressor run

normally?

Check the failure code

according to the failure

table

Normal

Check the

compressor ,wires

and its

capacitor.

YES

YES

YES

YES

YES

YES

NO

NO

NO

Does the control

ok?

Does the control

PCB ok?

Control failure

Control PCB failure

NO

NO

YES

NO

Trouble shooting

NO

Does the indoorunit run?

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Indoor unit and outdoor unit dont operate

Indoor and outdoor unit

dont operate

Press emergency key, does

the air conditionerrunning?

Replace fuse of

indoor PCB.

YES

YES

YES

NO

NO

NO

NO

Make the power

supply ok.

Replace remote

control.

YES

NO

Replace remote

receiver or displaypanel.

NO

YES

YES

Replace transformer.Does the transformer has

output?

Does the fuse of indoor

PCB burn out?

Change a good remote,

does the air conditioner

running?

Is the power supply no

problem?

Does the 12V and 5V of

indoor PCB have?Replace PCB.

normal

Does the electric switch

cut off?

Does the electric switch

cut off after a few

nimutes?

Is the wires of indoor

unit and outdoor unit no

problem?

YES

Reconnect the wires.NO

Is the insulationof

indoor unit and outdoorunit no problem?

YES

Find the reason and

replace the failurecomponet.

NO

Is the resistanceof each

main component no

problem?

Rreplace the failure

componet.

NO

YES

YES

YES

Documents

20115272209