INVENTOR C1VI - 18, C1VO - 18, C1VI - 24, C1VO - 24 Service Manual

Download

C1VI - 18 / C1VO - 18 C1VI - 24 / C1VO - 24

Table of Contents

Summary and Features

1.Safety Precautions

2.Speciﬁ cations

2.1 Unit Speciﬁ cations

2.2 Operation Characteristic Curve

2.3 Capacity Variation Ratio According to Temperature

2.4 Operation Data

2.5 Noise Criteria Curve Tables for Both Models

3. Construction Views

3.1 Indoor Unit

3.2 Outdoor Unit

4. Refrigerant System Diagram

5. Schematic Diagram

5.1 Electrical Data

5.2 Electrical Wiring

5.3 Printed Circuit Board

6. Function and Control

6.1 Remote Control Operations

6.2 Description of Each Control Operation

7. Installation Manual

7.1 Notices for Installation

7.2 Installation Dimension Diagram

7.3 Install Indoor Unit

7.4 Install Outdoor Unit

7.5 Check After Installation and Test Operation

7.6 Installation and Maintenance of Healthy Filter

..........................................................................

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

...........................................................................................3

.....................................................................................3

.................................................................7

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

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

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

............................................................................10

...............................................................................................10

............................................................................................11

.........................................................12

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

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

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

................................................................................16

........................................................................19

.....................................................................19

....................................................22

.............................................................................29

...............................................................31

.....................................................................................32

..................................................................................33

.............................................34

.........................................35

8. Exploded Views and Parts List

8.1 Indoor Unit

8.2 Outdoor Unit

9. Troubleshooting

9.1 Precautions before Performing Inspection or Repair

9.2 Conﬁ rmation

9.3 Flashing LED of Indoor/Outdoor Unit and Primary Judgement

9.4 How to Check simply the main part

10. Removal Procedure

10.1 Removal Procedure of Indoor Unit

10.2 Removal Procedure of Outdoor Unit

....................................................

..............................................................................................36

...........................................................................................40

...................................................................................44

...............................44

............................................................................................45

...............45

.........................................................50

.........................................................................70

.........................................................70

......................................................79

Summary and Features

Outdoor Unit

C1VI18

C1VI-24

YB1FA

Remote Controller

C1VI-18 C1VI-24

Summary and Features

Indoor Unit

Safety Precautions

Caution

Warning

Caution

could result in

personal injury

or death.

Incorrect handling

result in

injury

, or damage to product

or property.

Incorrect handling

may

minor

Recognize the following safety information:

Installing, starting up, and servicing air conditioner can be hazardous due to system pressure, electrical components, and equipment location, etc. Only trained, qualified installers and service personnel are allowed to install, start-up, and service this equipment. Untrained personnel can perform basic maintenance functions such as cleaning coils. All other operations should be performed

by trained service personnel. When handling the equipment, observe precautions in the

manual and on tags, stickers, and labels attached to the equipment. Follow all safety codes. Wear safety glasses and

work gloves. Keep quenching cloth and fire extinguisher nearby when brazing. Read the instructions thoroughly and follow all warnings or cautions in literature and attached to the unit. Consult local building codes and current editions of national as well as local electrical codes.

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

Never supply power to the unit unless all wiring and tubing are completed, reconnected and checked. This system adopts highly dangerous electrical voltage. Incorrect connection or inadequate grounding can cause personal injury or death. Stick to the wiring diagram and all the instructions when wiring. Have the unit adequately grounded in accordance with local electrical codes. Have all wiring connected tightly. Loose connection may lead to overheating and a possible fire hazard.

All installation or repair work shall be performed by your dealer or a specialized subcontractor as there is the risk of fire, electric shock, explosion or injury.

Make sure the ceiling wall is strong enough to bear the weight of the unit. Make sure the noise of the outdoor unit does not disturb neighbors.

Properly insulate any tubing running inside the room to

prevent the water from damaging the wall.

Make sure the outdoor unit is installed on a stable, level surface with no accumulation of snow, leaves, or trash beside.

Follow all the installation instructions to minimize the risk

of damage from earthquakes, typhoons or strong winds.

Avoid contact between refrigerant and fire as it generates

poisonous gas.

Apply specified refrigerant only. Never have it mixed with

any other refrigerant. Never have air remain in the

refrigerant line as it may lead to rupture and other hazards.

Make sure no refrigerant gas is leaking out when

installation is completed.

Should there be refrigerant leakage, the density of

refrigerant in the air shall in no way exceed its limited

value, or it may lead to explosion .

Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label.

Keep your fingers and clothing away from any moving parts.

Clear the site after installation. Make sure no foreign objects are left in the unit. Always ensure effective grounding for the unit.

Never install the unit in a place where a combustible gas might leak, or it may lead to fire or explosion. Make a proper provision against noise when the unit is installed at a telecommunication center or hospital. Provide an electric leak breaker when it is installed in a watery place. Never wash the unit with water. Handle unit transportation with care. The unit should not be carried by only one person if it is more than 20kg. Never touch the heat exchanger fins with bare hands. Never touch the compressor or refrigerant piping without wearing glove. Do not have the unit operate without air filter. Should any emergency occur, stop the unit and disconnect the power immediately.

1.Safety Precautions

Speciﬁ cations

Model

C1VI-18 / C1VO-18

Power

Supply

VegatloV detaR

220-240

05zHycneuqerF detaR

Phases 1

Power Supply Mode Outdoor

)0066~0621(5725WyticapaC gnilooC

)0086~0211(0585WyticapaC gnitaeH )0562~083(0061WtupnI rewoP gnilooC )0562~053(0261WtupnI rewoP gnitaeH

52.7AtnerruC rewoP gnilooC

43.7AtnerruC rewoP gnitaeH 0562WtupnI detaR

00.21AtnerruC detaR

m )LS/L/M/H/HS(emuloV wolF riA

-/055/056/087/058h/

2h/LemuloV gniyfidimuheD

03.3W/W REE

16.3W/W POC

/W/W REES /W/W FPSH

maerA noitacilppA

23-34

Indoor Unit

Model of indoor unit C1VI-18

wo ﬂ-ssorCepyT naF

mm )LXD(htgneL retemaiD

98X710 Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1350/1200/1050/900/Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1420/1250/1150/1050/-

02WrotoM naF fo tuptuO

52.0AALR rotoM naF

Fan Motor Capacitor

5.1F

-WretaeH fo tupnI ebuT reppoc-niF munimulA mroF rotaropavE

mmretemaiD epiP

4.1-2mmpaG n ﬁ-woR

8.403X4.52X517mm )WXDXL( htgneL lioC

BV82PMledoM rotoM gniwS

3W rotoM gniwS fo tuptuO

A51.3 BCPA esuF

-/53/04/64/84 )A( Bd )LS/L/M/H/HS( leveL erusserP dnuoS

-/54/05/45/85 )A( Bd )LS/L/M/H/HS( leveL rewoP dnuoS 002X892X049mm )DXHXW( noisnemiD

083X582X0101mm)H/W/L( xoB notraC fo noisnemiD

003X383X3101mm )H/W/L(egakcaP fo noisnemiD 21gk thgieW teN 61gkthgieW ssorG

2.Speciﬁcations

2.1 Unit Speciﬁ cations

Speciﬁ cations

Outdoor

Unit

C1VO-18tinU roodtuO fo ledoM

Compressor Manufacturer/Trademark MITSUBISHI ELECTRIC (GUANGZHOU)COMP

CMYGF031BNSledoM rosserpmoC

S05VPliO rosserpmoC

yratoRepyT rosserpmoC

00.72A .A.R.L

04.8A ALR rosserpmoC 5421WtupnI rewoP rosserpmoC

8756-L11TN1rotcetorP daolrevO

yrallipaCdohteM gnilttorhT 03~61CºpmeT noitarepO 54~81Cº)gnilooC( pmeT tneibmA

42~51- Cº)gnitaeH( pmeT tneibmA

ebuT reppoc-niF munimulA mroF resnednoC

mm retemaiD epiP

4.1-2mmpaG n ﬁ-swoR 055X1.83X218mm )WXDXL( htgneL lioC

088mprdeepS rotoM naF

06WrotoM naF fo tuptuO

26.0A ALR rotoM naF

Fan Motor Capacitor

5.3F

Air Flow Volume of Outdoor Unit m

0042h/

wo ﬂ-laixAepyT naF

mmretemaiD naF

445

gnitsorfeD citamotuAdohteM gnitsorfeD

1TepyT etamilC

Isolation I

42PInoitcetorP erutsioM Permissible Excessive Operating Pressure for the Discharge Side

0.3aPM

Permissible Excessive Operating Pressure for the Suction Side

9.0aPM

-/-/45 )A( Bd )L/M/H( leveL erusserP dnuoS

-/-/46 )A( Bd )L/M/H( leveL rewoP dnuoS 873X695X998mm )DXHXW( noisnemiD 036X714X549mm)H/W/L( xoB notraC fo noisnemiD 336X234X849mm )H/W/L(egakcaP fo noisnemiD

83gk thgieW teN 34gkthgieW ssorG

A014R tnaregirfeR

02.1gkegrahC tnaregirfeR

Connection

Pipe

5mhtgneL

03m/gegrahC lanoitiddA saG

Outer Diameter Liquid Pipe mm

Outer Diameter Gas Pipe mm

01mthgieH ecnatsiD xaM 03mhtgneL ecnatsiD xaM

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

Speciﬁ cations

Model

C1VI-24 / C1VO-24

Power

Supply

VegatloV detaR

220-240

05zHycneuqerF detaR

1sesahP

roodtuOedoM ylppuS rewoP

)0007~0041(0546WyticapaC gnilooC

)0028~0021(0007WyticapaC gnitaeH )0052~053(5891WtupnI rewoP gnilooC )0072~053(0391WtupnI rewoP gnitaeH

08.8AtnerruC rewoP gnilooC

65.8AtnerruC rewoP gnitaeH 0072WtupnI detaR

04.21AtnerruC detaR

m )LS/L/M/H/HS(emuloV wolF riA

-/055/007/008/009h/

2h/LemuloV gniyfidimuheD

52.3W/W REE

26.3W/W POC

/W/W REES /W/W FPSH

maerA noitacilppA

27-42

Indoor Unit

Model of indoor unit

C1VI-24

wo ﬂ-ssorCepyT naF

Diameter Length(DXL) mm

98X765 Fan Motor Cooling Speed(SH/H/M/L/ SL)

r/min 1250/1100/950/800/-

Fan Motor Heating Speed(SH/H/ML/ SL)

r/min 1300/1100/1000/850/-

53WrotoM naF fo tuptuO

03.0AALR rotoM naF

Fan Motor Capacitor

5.2F

-WretaeH fo tupnI ebuT reppoc-niF munimulA mroF rotaropavE

mmretemaiD epiP

5.1-2mmpaG n ﬁ-woR

9.243X4.52X567mm )WXDXL( htgneL lioC

XX53PMledoM rotoM gniwS

3W rotoM gniwS fo tuptuO

A51.3 BCPA esuF

-/93/24/74/15 )A( Bd )LS/L/M/H/HS( leveL erusserP dnuoS

-/94/25/75/16 )A( Bd )LS/L/M/H/HS( leveL rewoP dnuoS 912X513X7001mm )DXHXW( noisnemiD 313X593X3701mm)H/W/L( xoB notraC fo noisnemiD 823X893X6701mm )H/W/L(egakcaP fo noisnemiD

41gk thgieW teN 91gkthgieW ssorG

Speciﬁ cations

Outdoor

Unit

C1VO-24tinU roodtuO fo ledoM

Compressor Manufacturer/Trademark MITSUBISHI ELECTRIC (GUANGZHOU)COMP

CMYGF031BNSledoM rosserpmoC

S05VPliO rosserpmoC

yratoRepyT rosserpmoC

00.72A .A.R.L

04.8A ALR rosserpmoC 5421WtupnI rewoP rosserpmoC

8756-L11TN1rotcetorP daolrevO

yrallipaCdohteM gnilttorhT 03~61CºpmeT noitarepO 54~81Cº)gnilooC( pmeT tneibmA

42~51- Cº)gnitaeH( pmeT tneibmA

ebuT reppoc-niF munimulA mroF resnednoC

mm retemaiD epiP 7

4.1-2mmpaG n ﬁ-swoR 066X1.83X738mm )WXDXL( htgneL lioC

005/096mprdeepS rotoM naF

06WrotoM naF fo tuptuO

26.0A ALR rotoM naF

Fan Motor Capacitor

5.3F

Air Flow Volume of Outdoor Unit m

0023h/

wo ﬂ-laixAepyT naF

mmretemaiD naF

520

gnitsorfeD citamotuAdohteM gnitsorfeD

1TepyT etamilC

InoitalosI

42PInoitcetorP erutsioM Permissible Excessive Operating Pressure for the Discharge Side

0.3aPM

Permissible Excessive Operating Pressure for the Suction Side

9.0aPM

-/-/45 )A( Bd )L/M/H( leveL erusserP dnuoS

-/-/46 )A( Bd )L/M/H( leveL rewoP dnuoS 693X007X559mm )DXHXW( noisnemiD

537X554X6201mm)H/W/L( xoB notraC fo noisnemiD

057X854X9201mm )H/W/L(egakcaP fo noisnemiD 84gk thgieW teN 35gkthgieW ssorG

A014R tnaregirfeR

53.1gkegrahC tnaregirfeR

Connection

Pipe

5mhtgneL

03m/gegrahC lanoitiddA saG

Outer Diameter Liquid Pipe mm

Outer Diameter Gas Pipe mm

01mthgieH ecnatsiD xaM 03mhtgneL ecnatsiD xaM

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

Speciﬁ cations

gnitaeHgnilooC

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

11 10

9 8 7 6 5 4 3 2 1 0

Compressor speed (rps)

)A(tnerruC

11 10

9 8 7 6 5 4 3 2 1 0

Compressor speed (rps)

)A(tnerruC

• Conditions

Indoor : DB26.7˚C/WB19.4˚C Outdoor: DB35˚C/WB23.9˚C

Indoor air flow: Turbo Pipe length : 5m

• Conditions

Indoor : DB21.1˚C/WB15.6˚C Outdoor: DB8.33˚C/WB6.11˚C

Indoor air flow: Turbo Pipe length : 5m

220V

230V

240V

220V

230V

240V

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

11 10

9 8 7 6 5 4 3 2 1 0

Compressor speed (rps)

)A(tnerruC

11 10

9 8 7 6 5 4 3 2 1 0

Compressor speed (rps)

)A(tnerruC

• Conditions

Indoor : DB26.7˚C/WB19.4˚C

Outdoor: DB35˚C/WB23.9˚C

Indoor air flow: Turbo Pipe length : 5m

• Conditions

Indoor : DB21.1˚C/WB15.6˚C Outdoor: DB8˚C/WB6.11˚C

Indoor air flow: Turbo Pipe length : 5m

220V

230V

240V

220V

230V

240V

gnitaeHgnilooC

2.2 Operation Characteristic Curve

18K

24K

Speciﬁ cations

2.3 Capacity Variation Ratio According to Temperature

NOTES : (1) T1: Inlet and outlet pipe temperature of evaporator T2: Inlet and outlet pipe temperature of condenser P: Pressure of air pipe connecting indoor and outdoor units(on the side of gas pipe)

(2) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent. (Thermistor themometer)

(3)

Connecting piping condition : 5 m

t n i looC a e H ig n g

3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 3 –1 5

–10

5 0 5 7 10

4 0 4 1 42

100

105

95 90 85 80 75 70 65 60 55 50

Outdoor tem p . (˚C)

) %

(

o i t a r y t i c a p a C

110 100

90 80 70 60 50 40

Outdoor tem p . (˚C)

) % ( o i t a r y t i c a p a C

Conditions Indoor:DB21.1

C /WB15.6 oC Indoor air flow:Turbo Pipe length:5m

Conditions Indoor:DB26.7

C /WB19.4 oC Indoor air flow:Turbo Pipe length:5m

Cooling

Heating

Standard

pressure

Indoor Outdoor

P (MPa)

T1 (°C) T2 (°C) 18K 0.9 to 1.1 12 to 14 70 to 42 High High 62 24K 0.8 to 1.0 10 to 12 70 to 40 High High 78

Outdoor fan

mode

Compressor Frequency (Hz)

26.7/19.4 35/–

(°C)

Model name

temp.

Indoor fan

mode

Standard pressure

Indoor Outdoor

P (MPa)

T1 (°C) T2 (°C) 18K 2.2 to 2.4 70 to 37 2 to 4 High High 62 24K 2.5 to 2.7 70 to 37 0 to 3 High High 80

Outdoor fan

mode

21.1/

–

8/6.11

Temperature condition

(°C)

Model name

Heat exchanger pipe

temp.

Indoor fan

mode

Compressor Frequency (Hz)

2.4 Operation Data

Speciﬁ cations

2.5 Noise Criteria Curve Tables for Both Models

Indoor side noise when blowing

Outdoor side noise

18K

24K

60 80 100

Indoor Fan Motor Rotating Speed

Noice/dB(A)

low

Middle

High Super High

Compressor frequency/Hz

)A(Bd/esioN

18 24K

Constrction Views

3. Construction Views

3.1 Indoor Unit

139

685

183

Φ55

6 3

694

194

Φ55

18K

24K

Model W H D

18K 940 298 200 24K 1007 315 219

Unit:mm

Constrction Views

3.2 Outdoor Unit

18K

24K

955

560

043 798

396

3 6 4

7 0 0

899

818

695

378

303

343

550

Refrigerant System Diagram

4. Refrigerant System Diagram

Refrigerant pipe diameter Liquid :1/4" (6 mm) Gas : 1/2" (12mm)

2-Way

valve

Strainer

3-Way

valve

Muffler

4-Way valve

Capillary

Heat exchanger

( INDOOR )

Heat exchanger

( OUTDOOR )

rotalumucca-buS

rosserpmoC

Cooling Heating

Schematic Diagram

5.1 Electrical Data

5.2 Electrical Wiring

Indoor unit

5. Schematic Diagram

Symbol Color symbol Symbol Color symbol

Symbol Parts name

BU BLUE

BN BROWN

YE YELLOW

BK BLACK

WHITE

RD RED

YEGN WHYELLOW GREEN

VT VIOLET

PROTECTIVE EARTH

OG ORANGE

RT1

PRINTED CIRCUIT BOARD

EARTHING PANEL

EVAPORATOR

YEGN

OUTDOOR UNIT

ROOM

TUBE

AP1

RT2

BK BN

N(1)

YEGN

AP2

PEPE

CAP

JUMP

DISP2

PGF

TEM.SENSOR

TUBE ROOM

TEM.SENSOR

MOTOR

SWING

AC-L

COM-OUT

DISP1

DISPLAY

SWING-UD

Schematic Diagram

Outdoor unit

INDOOR UNIT

N(1)

2 3

XT1

BN BU

YEG N

T- SENSOR

6YEGN

AC-L N

COMP-W COMP-V COMP-U

U V

COM-INNER

RT 1

RT 2

RT 3

INDC1

3RD

OF AN

OVC-COMP

5W H

4W H

SA T

INDC2

COMP

4Y V

CAP .

COMP .

2YE

1BU

TEM.SENSO R

OUTTUBE

OUTROO M

TEM.SENSO R

EXHAUST

TEM.SENSO R

YEG N

FA N MO TO R

TERMINAL

BLOC K

4- WA Y VA LV E

AP1

BU BK BN

YEG N

EKV

(OPTIONAL)

YEG N

POWE R

WA RNING

Please don't touch any terminal when the aircondition is running or during the 15 minutes after the aircondition stops to prevent the risk of electrical shock!

C1VO-18

Schematic Diagram

T-SENSOR

6YEGN

AC-L N

14YEGN

10BU

9BN

11BK

AP1

N(1)

COMP-U

16BU

15YE

17RD

COM-INNER

RT1

RT2

RT3

INDC1

1YE

2BU 3RD

12WH

OVC-COMP

5WH

4WH

SAT

13OG

INDC2

COMP

TEM.SENSOR

EXHAUST

TEM.SENSOR

OUTROOM

TEM.SENSOR

OUTTUBE

INDOOR UNIT

EKV

8BN

7BU

PFCC2

19YE

18YE

PFCC1

20YEGN

COMP-V COMP-W

BU BK BN

YEGN

(optional)

YEGN

FAN MOTOR

OFAN

4YV

POWER

WARNING

Please don't touch any terminal when the voltage of terminal P(DC+) and N(DC-) at AP1 is higher than 30V to prevent the risk of electrical shock!

C1VO-24

Schematic Diagram

5.3 Printed Circuit Board

TOP VIEW

BOTTOM VIEW

Indoor unit

Copper pin terminal of neutral wire

Auxiliary heating relay K1, K2

3 Fan capacitor 4 Protective tube 5 Health relay K3 6 PG motor terminal

7 Piezoresistor 8 Jumper cap 9

Up&down swing terminal

PG feedback terminal

Terminal of ambient temperature sensor

Terminal of tube temperature sensor

Connect display board DISP1,DISP2 terminals

High-frequency transformer T1

15 Rectifier DB1 16

Strainer SF2022A-05220

Connect copper terminal of communication line for indoor fan

Supply power for control relay K4 of outdoor fan

2 3 4 5 6 7 8 9

1415

Schematic Diagram

TOP VIEW

BOTTOM VIEW

Outdoor unit(18k)

2 3 4

1 Compressor interface 2

Compressor overloadprotector

3 Temperature sensor 4

Electric expansion valve

Outdoor fan 6 4-way valve

6 4-way valve 7

Communication interface with indoor unit

8 Live wire

9 Neutral wire 10 Earthing wire 11 Reactor interface 12 Reactor interface 2

Schematic Diagram

2 3 4 5 6

13 2141

1 Compressor interface 2

Compressor overload protector

3 Temperature sensor 4 Electric expansion valve

5 Fan HALL interface 6 Outdoor fan 7 4-way valve 8

Communication interface with indoor unit

9 Live wire 10 Earthing wire 11 Neutral wire 12 Reactor interface 1

13 PFC capacitor interface 1 14 Reactor interface 2

TOP VIEW

BOTTOM VIEW

Outdoor unit(24k)

Function and Control

6. Function and Control

6.1 Remote Control Operations

ON/OFF

Press it to start or stop operation.

MODE

Press it to select operation mode (AUTO/COOL/DRY/FAN/HEAT).

Press it to increase temperature setting.

Press it to decrease temperature setting.

FAN

Press it to set fan speed.

Press it to set swing angle.

TIMER ON

Press it to set auto-on timer.

TIMER OFF

Press it to set auto-off timer.

CLOCK

Press it to set clock.

(X-FAN is the alternative expression of BLOW for the purpose of understanding.)

X-FAN TEMP

TURBO SLEEP LIGHT

Press it to turn on/off the light.

171518 19

MODE icon:

If MODE button is pressed, current operation mode icon (AUTO), ( COOL), (DRY), (FAN) or (HEAT is only for heat pump models) will show.

SLEEP icon :

is displayed by pressing the SLEEP button. Press this button again to clear the display.

TEMP icon:

Pressing TEMP button, (set temperature), (indoor ambient temperature), (outdoor ambient temperature) and blank is displayed circularly.

Up & down swing icon:

is displayed when pressing the up & down swing button. Press this button again to clear the display.

Function and Control

LIGHT icon:

is displayed by pressing the LIGHT button.Press LIGHT button again to clear the display.

LOCK icon:

is displayed by pressing "+" and “-” buttons simultaneously.Press them again to clear the display.

SET TIME display:

After pressing TIMER button, ON or OFF will blink.This area will show the set time.

TURBO icon:

is displayed when pressing theTURBO button.Press this button again to clear the display.

DIGITAL display:

This area will show the set temperature. In SAVE mode,"SE" will be displayed. During defrosting operation, “H1” will be displayed.

X-FAN icon:

is displayed when pressing the X-FAN button. Press this button again to clear the display.

FAN SPEED display:

Press FAN button to select the desired fan speed setting(AUTO Low-Med-High).Your selection will be displayed in the LCD windows, except the AUTO fan speed.

ON/OFF:

Press this button to turn on the unit. Press this button again to turn off the unit.

MODE:

Each time you press this button,a mode is selected in a sequence that goes from AUTO, COOL,DRY, FAN, and HEAT *, as the following:

*Note: Only for models with heating function. After energization, AUTO mode is defaulted. In AUTO mode, the set temperature will not be displayed on the LCD, and the unit will automatically select the suitable operation mode in accordance with the room temperature to make indoor room comfortable.

+ :

Press this button to increase set temperature. Hold it down for above 2 seconds to rapidly increase set temperature. In AUTO mode, set temperature is not adjustable.

Press this button to decrease set temperature. Hold it down for above . 2 seconds to rapidly decrease set temperature. In AUTO mode, set temperature is not adjustable.

FAN :

This button is used for setting fan speed in the sequence that goes from AUTO, , , to then back to Auto.

Press this button to set up & down swing angle, which circularly changes as below:

This remote controller is universal. If any command , or is sent out, the unit will carry out the command as indicates the guide louver swings as:

AUTO

COOL DRY FAN HEAT*AUTO

Low speed Medium speed High speed

OFF

Remote Controller Description

Function and Control

TIMER ON:

Press this button to initiate the auto-ON timer. To cancel the auto-timer program, simply press this button again. After pressing this button, disappears and "ON" blinks . 0 0:00 is displayed for ON time setting. Within 5 seconds, press + or - button to adjust the time value. Every press of either button changes the time setting by 1 minute. Holding down either button rapidly changes the time setting by 1 minute and then 10 minutes. Within 5 seconds after setting, press TIMER ON button to confirm.

TIMER OFF:

Press this button to initiate the auto-off timer. To cancel the auto-timer program, simply press the button again.TIMER OFF setting is the same as TIMER ON.

CLOCK :

Pressing CLOCK button, blinks. Within 5 seconds, pressing + or - button adjusts the present time. Holding down either button above 2 seconds increases or decreases the time by 1 minute every 0.5 second and then by 10 minutes every 0.5 second. During blinking after setting, press CLOCK button again to confirm the setting, and then will be constantly displayed.

X-FAN:

Pressing X -FAN button in COOL or DRY mode,the icon is displayed and the indoor fan will continue operation for 10 minutes in order to dry the indoor unit even though you have turned off the unit. After energization, X-FAN OFF is defaulted. X-FAN is not available in AUTO, FAN or HEAT mode.

TEMP:

Press this button, could select displaying the indoor setting temperature or indoor ambient temperature.When the indoor unit firstly power on it will display the setting temperature, if the temperature's displaying status is changed from other status to" ",displays the ambient temperature, 5s later or within 5s, it receives other remote control signal that will return to display the setting temperature. if the users haven't set up the temperature displaying status,that will display the setting temperature.

TURBO:

Press this button to activate / deactivate the Turbo function which enables the unit to reach the preset temperature in the shortest time. In COOL mode, the unit will blow strong cooling air at super high fan speed. In HEAT mode, the unit will blow strong heating air at super high fan speed.

SLEEP:

Press this button to go into the SLEEP operation mode. Press it again to cancel this function. This function is available in COOL, HEAT (Only for models with heating function) or DRY mode to maintain the most comfortable temperature for you.

LIGHT:

Press LIGHT button to turn on the display's light and press this button again to turn off the display's light. If the light is turned on , is displayed. If the light is tunrned off, disappears. Combination of "+" and "-" buttons: About lock Press "+ " and "-" buttons simultaneously to lock or unlock the keypad. If the remote controller is locked, is displayed. In this case, pressing any button, blinks three times. Combination of "MODE" and "-" buttons:About switch between Fahrenheit and Centigrade At unit OFF, press "MODE" and "- " buttons simultaneously to switch between

and .

Replacement of Batteries

1.Remove the battery cover plate from the rear of the remote controller. (As shown in the figure)

2.Take out the old batteries.

3.Insert two new AAA1.5V dry batteries, and pay attention to the polarity.

4. Reinstall the battery cover plate.

Notes:

●When replacing the batteries, do not use old or different types of batteries. Otherwise, it may cause malfunction.

●If the remote controller will not be used for a long time,

please remove batteries to prevent batteries from leaking.

●The operation should be performed in its receiving range.

●It should be kept 1m away from the TV set or stereo sound sets.

●If the remote controller does not operate normally, please take the

batteries out and reinsert them after 30 seconds. If it still can't operate properly, replace the batteries.

Sketch map for replacing batteries

Function and Control

6.2 Description of Each Control Operation

1.Basic function of system

(1)

Cooling mode

1.Under this mode, fan motor, swing will work under setting status, the temp. range is 16-30

(61-86 Fahrenheit

scale)

2.Outdoor unit malfunction or unit stop running, indoor unit will keep original running status, malfunction displayed.

3.When 0 (Tset-Tamb.), if indoor fan motor is high speed, that the fan motorist running in middle speed, the middle speed or low speed will be maintained;(this condition should be executed when compressor start up);the super high speed will not rotate; When (Tamb-Tset) , the fan will return to the setting fan speed.

(2)Dehumidifying mode

1.Under this mode, fan motor will run at low speed, swing will work at setting status, setting temp. range is 16-30 (61-86 Fahrenheit scale)

2.Outdoor unit malfunction or protection, unit will stop, indoor unit will keep original running status, malfunction displayed.

(3)Fan mode Under this mode, indoor fan motor could be setted at high speed, middle speed, low or auto speed, compressor, outdoor unit and four-way valve will stop to run. Under this mode, temp. range should be 16-30 (61-86 Fahrenheit scale)

(4)Heating mode

1.Under this mode, temp. range should be 16-30 (61-86 Fahrenheit scale)

2.Working condition

and procedure of heating mode: When unit turn on and enter into Heating mode, indoor unit

enter into anti-cool wind mode, when unit is stop running, and indoor fan motor turns on, blowing heat will act.

3.Protection function, under heating mode, compressor will stop to run due to malfunction happened, indoor fan motor will blow surplus heat.

4.Defrosting control: When receiving the defrosting signal from outdoor unit, displayer will display H1, 10s later, indoor fan motor will stop to run.

5.Anti-coold wind function

6.Blow heat air function a.If heating temp. meets the compressor stop running condition, compressors, outdoor fan motor will stop to run, the upper and lower guide louver will rotate to horizontal position L, indoor fan motor run at setting fan speed for 60s, then the indoor fan motor will stop to run. b.Dueto PG motor block running, the air guide board will keep the position when it

stopping. (under each mode),

other malfunction unit will stop to run, the upper and lower air guide louver will rotate to horizontal position L, indoor fan unit will run at setting fan speed and run for 60s, indoor fan unit will stop to run.

(5)Auto mode:

1.When Tam

26 , select the cooling mode, at this time, the setting temp. is 25 .(77 Fahrenheit scale)

2.Cooling and heating units: Tamb 22

,will runat heating mode, at this time, the setting temp. is 20

3. Cooling only unit: When Tamb 22 , it will run at Fan mode, the setting temp. is 25 (77 Fahrenheit scale)

4.When 23 Tindoor amb. 25 ,firstly enter into auto mode and run at auto fan speed, other modes will run at auto mode, will keep the previous running mode. (When entering into Dehumidifying mode, it will run at auto fan speed) (6)Auto fan speed control mode

(68Fahrenheit scale)

6.2.1 Functions of Indoor Unit

Function and Control

2. Display state of indoor indicators (1) State of indoor display board

1. When the unit is powered on, all patterns will be displayed and then only power indicator is on. When the unit is turned on with a remote controller, the operating indicator is on and operation mode which is set currently is displayed.

2. In defrosting mode, "H1" is displayed on "Double 8".

3. Set temperature is displayed on "Double 8". Display of operation patterns and mode patterns

When the unit is powered on, all patterns will be displayed and the standby operation indicator will become red. When the unit is turned on through a remote controller, the operation indicator is light. At the same time, operating mode patterns (mode indicators include cooling, heating and dehumidification modes) set currently are displayed, and dynamic display patterns of wind speed are displayed. If the light button is switched off, all display will be turned off.

Temperature display control mode of separated air conditioner

1. When user sets the remote controller at set temperature display, currently set temperature will be displayed.

2. Only when remote signals are converted from other display states into indoor ambient temperature display state, the

remote controller will display indoor ambient temperature for 5 seconds and then return to set temperature display.

3. Only when remote signals are converted from other display states into outdoor ambient temperature display state, the

remote controller

will display outdoor ambient temperature for 5 seconds and then return to set temperature display.

4. If the controller is lack of outdoor display functions, as the signal is received, set temperature will be displayed.

5. When the unit is turned off, temperature display will be compulsively set at given temperature by the controller. When the

unit is turned on, patterns as set by remote signals will be displayed.

6. If user does not set up temperature display state, given temperature will be displayed.

(2) Failure display of indoor unit

1. Requirements for failure display

When multiple failures appear at the same time, failure protection codes shall be displayed alternatively. (1) Hardware failures shall be displayed immediately, referring to requirements in "Failure State Display Table"; (2) Operation states shall be displayed immediately, referring to requirements in "Failure State Display Table"; (3) Other failures shall be displayed 200s after the compressor stops, referring to requirements in "Failure State Display Table". (Note: in

the case that the unit is switched off with the remote controller, or the compressor is switched on again, failure display waiting time (200s) shall be cleared.) (4) Frequency limitation and reduction states shall be displayed by means of remote calling.

3. Failure display control Indicator failure display shall be kept synchronous with Double 8 failure display, that is, during indicator blinking, failure code corresponding to such indicator shall be displayed on Double 8.

4. Method of remote calling of failure display Entering the failure remote calling mode: push the light button four times within 3s to call out relevant failure protection code; Quit the failure remote calling mode: push the light button four times within 3s or call out failure display to enter it for 5 minutes and then quit.

3. Other control targets

(1) Up and down wind blow functions: model of stepping motor is MP28EA.

When the unit is powered on, the up and down wind blow motor will turn a wind deflector anti-clockwise to Position 0 to shut down the air outlet. When the unit is switched on and wind blow function is not preset, under the heating mode, up and down wind blades will turn clockwise to position D; and under other modes, the up and down wind blades will turn clockwise to position L. If wind blow function is set at the same time as the unit is switched on, the wind blades will swing between position L and D. The wind blades can be kept in seven states: position L, position A, position B, position C, position D, swing between position L and D, stop at one position from L to D. When the unit is turned off, the wind deflector will be closed up to position 0. Wind blow action is effective only when wind blow commands are set and the indoor unit is running.

Note: When the wind blades are set at position L to B, position A to C, or position B to D through remote setting,

the wind deflector will swing between position L and D. L—A—B—C—D.

(2) Buzzer

When the controller is powered on, signals from a remote controller are received, or the auto button is pushed, a buzzer will give out prompt tone.

(3) Auto button

When the button is pushed, the unit will operate in auto mode and the indoor fan will run in auto state. When the indoor fan is running, the wind blow motor will work. When the button is pushed again, the unit will be switched off. At the same time as the button is pushed, the whole unit will be powered on and enter into fast test mode; when the unit is powered on and detects for continuous 20s (such time shall not be fast tested) that the auto button is pushed, and if the unit is currently at fast test state, the unit will quit the fast test state.

Function and Control

(4) Sleep function

This mode is effective only in cooling and heating modes. Proper sleep curves shall be selected for operation according to preset temperature.

In cooling mode:

(1) When initial temperature is set at 16-23 , an increase of 1 will be gained every hour after the sleep function is activated. After 3 is raised, the temperature will be maintained. After operation for 7 hours, temperature will go down by 1 , afterwards, the unit will operate at such temperature. (2) When initial temperature is set at 24-27 , an increase of 1 will be gained every hour after the sleep function is activated.

fter 2 is raised, the temperature will be maintained. After operation for 7 hours, temperature will go down by 1 , afterwards, the unit will operate at such temperature. (3) When initial temperature is set at 28-29 , an increase of 1 will be gained every hour after the sleep function is activated.

fter 1 is raised, the temperature will be maintained. After operation for 7 hours, temperature will go down by 1 , afterwards, the unit will operate at such temperature.

In heating mode:

(1) When initial temperature is set at 16 , the unit will operate at such temperature. (2) When initial temperature is set at 17-20 , a decrease of 1 will be gained every hour after the sleep function is activated. After 1 is reduced, the temperature will be maintained. (3) When initial temperature is set at 21-27 , a decrease of 1 will be gained every hour after the sleep function is activated. After 2 is reduced, the temperature will be maintained. (4)

When initial temperature is set at 28-30 , a decrease of 1 will be gained every hour after the sleep function is

activated. After 3 is reduced, the temperature will be maintained.

(5) Timing function

The main board integrates general timing and moment timing. Such two timing functions can be selected through a remote controller on which different functions are arranged.

General timing:

Timing start: timing start can be set when the unit is off. When preset time is reached, the controller will operate in a preset

mode. Timing can be set at an interval of 0.5 hour in a scope of 0.5 - 24 hours. Timing stop: timing stop can be set when the unit is on. When preset time is reached, the system will be turned off. Timing can be set at an interval of 0.5 hour in a scope of 0.5 - 24 hours.

Moment timing

Timing start: if timing start is set when the system is at operation state, the system will continue to operate; if timing start is set

when the system is at stop, as the preset time is reached, the system will start to run in preset mode. Timing stop: if timing stop is set when the system is at stop state, the system will keep standby; if timing stop is set when the system is in operation, as the preset time is reached, the system will stop running.

Timing change:

When the system is in timing mode, start and stop can be set through the On/Off button on the remote controller; or timing time can be reset and the system will operate according to the latest setting. When the system is in operation and both timing start and stop are set, the system will stay at currently set operation state. When preset timing stop time is reached, the system will stop working. When the

system is at stop state and both timing start and stop are set, the system will keep at stop state. When preset timing start time is reached, the system will start operation. From then on, the system will operate in preset mode at a preset start time and stop at a preset stop time everyday. If timing stop time is set as the same as timing start time, a stop command will be executed.

(6) Dry and mildew proof function

Dry and mildew proof function can be set in cooling and dehumidification modes.

(7) Control of indoor fan

Indoor fan can be set at four levels, super-high, high, middle and low, with a remote controller. When one level is set, the fan will thus operate at such level. The fan can also be set at auto state.

(8) Power off Memory Function

What will be memorized includes modes, up and down wind blow, light, preset temperature, preset wind speed, general timing (no memory for moment timing), and Fahrenheit /Celsius degree. When the unit is powered on again after power failure, operation continues according to memorized content. If timing is not set by the last remote control command, the system will memorize the last remote control command and operate in the mode specified in the last remote control command. If timing is set by the last remote control command and power failure happens before the preset time, the system, as powered on again, will memorize the timing function set by the last remote control command. Timing will be re-counted from the time at which the system is powered again. If timing is set by the last remote control command and timing of start or stop is reached before power failure, the system, as powered on again, will memorize operation state before power failure and will not perform timing action. Moment timing is out the range of memor

Function and Control

(9) Locked Protection of PG Motor

When starting up the fans, if the motor has run at a lower speed continuously for a period, for preventing automatic protection of the motor, stop running, and display the locked operation; if the machine is running at present, the code of the locked fault---H6 of double-eight digital tubes will be displayed; if the machine is shut down at present, the information of the locked fault will not be displayed.

(10) Super Power Function

In cooling and heating modes (automatic, dehumidifying and air-supplying modes are without strong power), press the button of Super Power, the wind speed on the remote controller is displayed as super-high air flow, and the inner fans are also turned to super-high air flow;

(11) Health Function

When the inner fans are running, the remote controller is set at the Health function at this time (if there is no Health button on the remote controller, the Health On order is defaulted), then start the Health function device.

5. Fault Detection of Temperature Sensor (1) Indoor Environment Temperature Sensor:

Detect the fault of thermo-bulb at any time;

(2) Indoor Pipe Temperature Temperature Sensor:

During the defrosting period, the fault of the thermo-bulb will be not detected, which shall be detected in 5 minutes after defrosting is completed; the fault of the thermo-bulb will be detected at other times;

(3) Protecting Treatments of Temperature Sensor:

1.When

the thermo-bulb is detected to be short-circuited continuously for 30 seconds:

It is

regarded that the temperature detected by the thermo-bulb is over-high (or unlimited), then the whole machine will exert corresponding safety stops according to the over-high temperature sensed by the thermo-bulb, and display corresponding temperature safety stops and faults of the thermo-bulb simultaneously.

2. When the thermo-bulb is detected in open circuit continuously for 30 seconds: stop the machine in protection,

directly display corresponding faults of the thermo-bulb.

6. Forced Running Function of the Inner Units

(1) Enter into Forced Running Control

Within 5 minutes after power-up, press the Lights Off button on the remote controller continuously for three times within 3 seconds to enter into the fluorine collecting mode, and display Fo, send the fluorine-collecting mode for 25 minutes continuously, each load will be treated as cooling when starting the machine (set the air flow

as High, set the temperature as 16

(2) Exit from the Forced Running Control

After receiving any remote signal, or signal of keys, the fluorine-collecting mode will exit, and operate in accordance with the current orders set; or exit the fluorine-collecting mode after running for 25 minutes, and the machine will be shut down automatically.

(It is refrigerants reclaiming function which is used for the condition that refrigerants cannot be reclaimed by cooling operation in the season with low temperature.)

Function and Control

1. Input Parameter Compensation

(1) Input parameter compensation function

s the structure feature of split unit, concerning the comfort, in heating mode, when compressor stops, the indoor ambient

temperature is higher than preset temperature for 3 .

2. Check parameters to effectively make judgment and control

Insert the outdoor discharge temp sensor into corresponding temp sensor jacket of discharge pipe in order to protect safe and reliable operation of the unit, so that the control system can accurately detect the discharge temp as well as effectively control and protect it. Otherwise, the unit will stop and display the trouble of “outdoor discharge temp sensor failure ( not be inserted correctly)” which can be recovered by pressing ON/OFF button.

3. Cooling Mode

3.1 Conditions and processes of cooling operation:

3.1.1 If the compressor stops, and [Tpreset – (Tindoor ambient – ΔTcooling indoor ambient temperature compensation)] ≤0.5 , start up the unit for cooling operation;

3.1.2 During cooling operation, if 0

≤ [Tpreset – (Tindoor ambient –ΔTcooling indoor ambient temperature compensation)]< 2 ,

keep the cooling operation;

3.1.3 During cooling operation, if 2

≤ [Tpreset – (Tindoor ambient –ΔTcooling indoor ambient temperature compensation)], the

cooling operation will stop after reaching to the setting temperature.

3.2 Temperature setting range

3.2.1 If Toutdoor ambient ≥ [Tlow-temperature cooling], the temperature can be set at: 16~30

(Cooling at roomemperature);

3.2.2 If Toutdoor ambient < [Tlow-temperature cooling], the temperature can be set at: 25~30

(Cooling at low temperature),

that is, the minimum setting temperature to be judged by outdoor unit is 25

4. Dry Mode

4.1 Conditions and processes of dry operation: same as the cooling mode;

4.2 The temperature setting range is: 16~30

;

5. Fan Mode

5.1 The compressor, outdoor fan and four-way valve are switched off;

5.2 The temperature setting range is: 16~30

6. Heating Mode

6.1. Conditions and processes of heating operation: (Tindoor ambient is the actual detection temperature of indoor

environment temp sensor, ΔTheating indoor ambient temperature compensation is the indoor ambient temperature compensation

during heating operation)

6.1.1 If the compressor stops, and [(Tindoor ambient –ΔTheating indoor ambient temperature compensation) –Tpreset]≤ 0.5

start the unit to enter into heating operation;

6.1.2 During heating operation, if 0

≤ [(Tindoor ambient –ΔTheating indoor ambient temperature compensation)–Tpreset] < 2 ,

keep the heating operation;

6.1.3 During heating operation, if 2

≤ [(Tindoor ambient –ΔTheating indoor ambient temperature compensation)–Tpreset], the

heating operation will stop after reaching the setting temperature.

6.2 The temperature setting range in this mode is: 16~30

7. Defrosting Control (heating)

7.1 After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied for continuous 3minutes, the defrosting operation will start.

7.2 Start defrosting: Compressor stops and starts up 55S later;

7.3 Finish of Defrosting: Compressor stops and starts up 55S later;

7.4 The defrosting operation can exit when any of the conditions below is satisfied:

7.4.1 Toutdoor pipe≥ 12

;

7.4.2 Toutdoor ambient

-5 , and the Toutdoor pipe≥ 6 last more than 80S;

7.4.3The continuous running time of defrosting reaches.

8. Compressor Control

8.1. The frequency of compressor will be controlled according to the relationship of ambient temperature and preset temperature as well as changing speed of ambient temperature;

8.2 Start the compressor after starting cooling, heating, dry operation, and the outdoor fan for 5s;

8.3 When the unit is off, in safety stops and switching to fan mode, the compressor will stop immediately;

8.4 In all modes: once the compressor starts up, it will not be allowed to stop within 7 min. (Note: except the cases that require stop of the compressor such as fault protection, remote shutdown, mode switching etc.);

6.2.2 Functions of Outdoor Unit

Function and Control

8.5 In all modes: once the compressor stops, it can’t restart within 3-minute (Note: The indoor units with memory function can be restarted after remote shutdown and powering on again without delay).

9. Outdoor Fan Control

9.1 When the unit is off by remote control in safety stops or stops after reaching the setting temperature, 1min later,the outdoor fan will stop;

9.2 In fan mode: The outdoor fan stops;

9.3 Start of defrosting: Outdoor fan will stop after compressor stops for 50S;

9.4 Finish of defrosting: Outdoor fan will start up when the compressor stops.

10. 4-way valve control

10.1 The 4-way valve is off under the modes of Cooling, dry and fan;

10.2 In heating mode, the 4-way valve is energized;

10.3 When the unit is off in heating mode or heating mode shifts to other modes, the 4-way valve will be de-energized after compressor stops for 2min;

10.4. After protection stops, the 4-way valve will be de-energized after 4min;

10.5 Start of defrosting: when entering defrosting mode, 4-way valve will be de-energized after the compressor stops for 50s;

10.6 Finish of defrosting: The 4-way valve will be energized after the compressor stops for 50s.

11. Anti-freezing protection

11.1 In cooling and dry mode, if Tindoor pipe 0 is detected for 3min continuously, the unit will stop; if 6 Tindoor pipe, and compressor has stopped for 3min, the unit will resume running;

11.2 In cooling and dry mode, if Tindoor pipe

6 , running frequency of compressor will be decreased or stop increasing;

11.3 If the unit stops as anti-freezing protection for 6 times, it can not resume running automatically and display trouble code, it can resume by pressing ON/OFF button. During operation, if the compressor operates for over 10min, the times of anti-freezing protection stop will be cleared to zero. When the unit is off/ fan/ heating mode, the malfunction and malfunction times will be cleared to zero. (If the malfunction can not be removed)

12. Overload protection

12.1 In cooling and dry mode: if 65 ≤Toutdoor pipe, the unit will stop; if Toutdoor pipe 55 , and compressor has stopped for 3min, the unit will resume running;

12.2 In cooling and dry mode: if 55

≤Toutdoor pipe, running frequency of compressor will be decreased or stop increasing;

12.3 In heating mode: if 64

≤Tindoor pipe, the unit will stop; if Tindoor pipe 54 , and compressor has stopped for 3min, the

unit will resume running;

12.4 In heating mode: if 54

≤Tindoor pipe, running frequency of compressor will be decreased or stop increasing;

12.5 If the unit stops as overload protection for 6 times, it can not resume running automatically and display malfunction. It can resume running by pressing ON/OFF.During operation, if the compressor has operated for over 10 min, the times of overload protection stop will be cleared to zero. When the unit is off or in Fan mode or shifts to heating mode, the malfunction and malfunction times will be cleared to zero immediately. (If the malfunction can not be removed)

13. Compressor discharge temperature protection

13.1 If 115 ≤Tdischarge, the unit will stop; if Tdischarge 97 , and compressor has stopped for 3min, the unit will resume running;

13.2 If 97

≤Tdischarge, running frequency of compressor will be decreased or stop increasing;

13.3 If the unit stops as protection of compressor discharge temperature for 6 times, it can not resume running automatically and malfunction will be displayed. It can resume running by pressing ON/OFF. During operation, if the compressor has operated for over 10min, the time of compressor discharge temperature stop will be cleared to zero.When the unit is off/ shifts to fan mode, the malfunction and malfunction times will be cleared. (If the malfunction can not be removed)

14. Current protection

14.1. If 12A≤I alternating-current, running frequency of compressor will be decreased or stop increasing;

14.2. If 17A≤I alternating-current, the unit will stop; and after compressor has stopped for 3min, the unit will resume running;

14.3 If the unit stops as protection for compressor discharge temperature for 6 times, it can not resume running automatically and malfunction will be displayed. It can resume by pressing ON/OFF button. During operation, if the compressor has operated for over 10 min, the time of compressor discharge temperature stop will be cleared to zero.

15. Drop off voltage

During compressor operation, the system will stop and malfunction of drop off voltage will occur if voltage downward fluctuates rapidly, and it will re-start up automatically 3min later.

Function and Control

16. Communication malfunction If the unit does not receive correct signal from indoor unit for 3min continuously, the unit will stop as communication malfunction protection; if communication malfunction has removed and compressor has stopped for 3min, the unit will resume running.

17. IPM module protection

When the compressor starts, if there is overcurrent or low control voltage for IPM module due to some abnormal results, IPM will detect module protection signal as the unit is on. Once the module protective signal is detected, stop the unit with module protection immediately. If the module protection is removed and compressor has stopped for 3min, the unit will be allowed to operate.If the module protection continuously occurs for three times, it can not be removed automatically, and you should press the ON/OFF button to resume operation. If the running time of compressor exceeds 10 min, the module protection times will be cleared.

18. Module overheating protection

18.1 If 80 ≤Tmodule, running frequency of compressor will be decreased or stop increasing;

18.2.If 95

≤Tmodule, the unit will stop; if Tmodule 87 , and compressor has stopped for 3min, the unit will resume running;

18.3 If the unit stops as module overheating protection occurs for 6 times, it can not resume running automatically and malfunction will be displayed, it can resume by pressing ON/OFF. During operation, if the time exceeds compressor running time, the time of module overheating protection stop will be cleared. When the unit is off or shifts to fan mode,the malfunction and malfunction times will be cleared. (If the malfunction can not be removed).

19 Compressor overload protection

19.1 If detect that the overload switch breaks within continuous 3S, the system will stop as protection;

19.2 If detect that the protection has removed and the compressor has stopped for 3min, the unit will be allowed to operate.

19.3 If the unit stops as compressor overload protection occurred for 3 times continuously, it can not resume running automatically and malfunction will be displayed. It can resume operation by pressing ON/OFF button; and the times of compressor overload protection will be cleared after the compressor has run for 30min.

Installation Manual

7. Installation Manual

7.1 Notices for Installation

Caution

1.The unit should be installed only by authorized service center according to local or government regulations and in compliance with this manual.

2.Before installing, please contact with local authorized maintenance center. If the unit isnot installed by the authorized service center, the malfunction may not be solved due to incovenient contact between the user and the service personnel.

3.When removing the unit to the other place, please firstly contact with the local authorized service center.

4.Warning: Before obtaining access to terminals, all supply circuits must be disconnected.

5.For appliances with type Y attachment, the instructions shall contain the substance of the following. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.

6.The appliance must be positioned so that the plug is accessible.

7.The temperature of refrigerant line will be high; please keep the interconnection cable away from the copper tube.

8.The instructions shall state the substance of the following: This appliance is not intended for use by persons(including children)with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the

appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

7.1.1 Installation Site Instructions

Proper installation site is vital for correct and efficient operation of the unit. Avoid the following sites where:

strong heat sources, vapours, flammable gas or volatile liquids are emitted. high-frequency electro-magnetic waves are generated by radio equipment,welders and medical equipment. salt-laden air prevails (such as close to coastal areas). the air is contaminated with industrial vapours and oils. the air contains sulphures gas such as in hot spring zones. corrosion or poor air quality exists.

7.1.2 Installation Site of Indoor Unit

1.The air inlet and outlet should be away from the obstructions. Ensure the air can be blown through the whole room.

2.Select a site where the condensate can be easily drained out, and where it is easily connected to outdoor unit.

3.Select a place where it is out of reach of children.

4.Select a place where the wall is strong enough to withstand the full weight and vibration of the unit.

5.Be sure to leave enough space to allow access for routine maintenance. The installation site should be 250cm or more above the floor.

6.Select a place about 1m or more away from TV set or any other electric appliance.

7.Select a place where the filter can be easily taken out.

8.Make sure that the indoor unit is installed in accordance with installation dimension instructions.

9.Do not use the unit in the laundry or by swimming pool etc.

Installation Manual

7.1.3

Installation Site of Outdoor Unit

1.Select a site where n oise and outflow air emitted by the unit w ill not annoy neighbors.

2.Select a site where t here is sufficient ventilation .

3.Select a site where there is no obstruction blocking the inlet and outlet . 4 .The site s hould be able to withstand t he f ull weight and v ibration.

5.Select a dry place, but do not expose the unit to direct sunlight or strong wind.

6.Make sure that the outdoor unit is i nstalled in a ccordance with the installation instructions, a nd is convenient for m aintena nc e and r epair .

7.The height difference between indoor and outdoor units is within 10 m, and the length of the connecting tubing does not exceed 30 m.

8.Select a place where it is out of reach of children.

9.Select a place where t he unit does not have

negative impact on p edestrians or on t he city .

7.1.4 Safety Precautions for Electric Appliances

1.A dedicated power supply circuit s hould be used in a ccordance with local e lectrical safety r egulations.

2.Don't drag the power cord with excessive force .

3.The unit s hould be r eliably earthed and c onnected to an e xclusive earth device by t he professionals . 4 .The air s witch m ust have the f unctions of magnetic tripping and heat tripping to prevent s hort circuit and overload. 5 .The minimum distance between the unit and combustive s urface is 1.5m . 6 .The appliance shall be installed in a ccordance with national wiring regulations .

7.An all-pole disconnection switch with a contact

separation of at least 3 mm in all poles s hould be connected in fixed wiring.

Note:

Make sure the live wire, neutral wire and earth wire in the family power socket are properly connected. There should be reliable circuit in the diagram.Inadequate or incorrect electrical connections may cause electric s hock or f ire .

7.1.5 Earthing Requirements

1.Air conditioner is type I electric appliance. P lease ensure that t he unit is reliably earthed.

2.The y ellow-green wire in air c onditioner is t he earthing wire which can not be used for other purposes. Improper earthing ma y cause e lectric shock.

3.The earth resistance should a ccord to the national criterion . 4 .The power must have r eliable earthing terminal. P lease do not connect t he earthing wire with the following:

Water pipe Gas pipe Contamination pipe Other place t hat professional personnel c onsider is unreliable

5. T he model a nd rated values of fuses should a ccord with the silk print on fuse cover or related PCB.

Installation Manual

7.2 Installation Dimension Diagram

Space to the wall

Space to the ceiling

Space to the wall

Air outlet side

Space to the floor

Above

15cm Above

30cm Above

50cm Above

30cm Above

15cm Above

300 cm

250 cm

Space to the obstruction

Air outlet side

Space to the wall

Air inlet side

The dimensions of the space necessary for proper installation of the unit includ e the minimum permissible distances to adjacent parts .

S chematic diagram being reference only (outdoor unit is with variation ) ,

p lease refer to real product for authentic information.

Installation Manual

7.3 Install Indoor Unit

1.Mounting plate should be installed horizontally. As the water tray's oulet for the indoor unit is two-way type, during installation, the indoor unit should slightly slant to water tray's outlet for smooth drainage of condensate.

2.Fix the m ounting plate on the wall with s crews .

3.Be sure that the mounting plate has been fixed firmly enough to withstand about 60 kg. Meanwhile, the weight should be evenly shared by each screw.

7.3.1 Installingof Mounting Plate

7.3.2 Boring Piping Hole

1.Slant the piping hole ( 55) on the wall slightly downward to the outdoor side.

1. Connect the drain hose to the outlet pipe of the indoor unit.Bind the joint

with rubber belt.

2 .Insert t he p iping-hole s leeve into the hole to prevent t he connection piping and wirin g from being damaged when passing through t he hole .

7.3.3 Installing of Drain Hose

7.3.4 Connecting Indoor and Outdoor Electric Wire s

1 .Open the front panel .

2.Remove the wiring cover, c onnect and fix power connection cord to the terminal board shown in Fig 2.

3.Make the power

connection cord pass through the hole at the

back of indoor unit.

4.Reinstall t he cord anchorage and wiring cover.

5.Reinstall the front panel .

Indoor

Outdoor

W all pipe

Seal pad

Unit mm

Above 150 from the celling

Above 150 from

the wall

bove 150 from

the wall

Above 150 from the celling

Above 150 from

the wall

Above 150 from the wall

2.Put the drain hose into insulating tube .

3.Wrap the insulating tube with wide rubber belt to prevent the shift of insulating tube. Slant the drain hose downward slightly for smooth drainage of condensate.

Note: The insulating tube shoud be connected reliably with the sleeve outside the outlet pipe. The drain hose should be slanted downward slightly,without distortion, bulge or fluctuation. Do not put the outlet in the water .

bulge

distortio n

outlet pipe of indoor unit

insulating tube

connecte d

insulating tube

drain hos e

outlet pipe of indoor uni t

drain hos e

outlet pipe of indoor uni t

outlet pipe of indoor unit

rubber belt

rubber bel t

rubber belt

Flooded

Fig. 2

Wr ing Cove r

yellow green

brow n

Outdoor unit connection

N(1 )

Φ55

55Φ55Φ

Φ55

Installation Manual

NOTE:

All wires between indoor and outdoor units must be connected by the qualified electric contractor.

Electric wires must be connected correctly. Improper connection may cause malfunction. Tighten the terminal screws securely.

After tightening the screws, pull the wire sligltly to confirm whether it's firm or not.

Make sure that the electric connections are earthed properly to prevent electric shock. Make sure that all wiring connections are secure and the cover plates are reinstalled properly. Poor installation

may cause fire or electric shock.

7.3.5 Installing of Indoor Unit

The piping can be output from right, right rear, left or left rear.

1.When routing the piping and wiring from the left or right side of indoor unit, cut off the tailings from the chassis as necessary(As shown in Fig.3) (1)Cut off the tailing 1 when routing the wiring only; (2)Cut off the tailing 1 and tailing 2 when routing both the wiring and piping.

2.Take out the piping from body case, wrap the piping, power cords, drain hose with the tape and then make them pass through the piping hole. (As shown in Fig.4)

3.Hang the mounting slots of the indoor unit on the upper hooks of the mounting plate and check if it is firm enough.(As shown in Fig.5)

4.The installation site should be 250cm or more above the floor.

7.3.6 Installing of Connection Pipe

1.Align the center of the pipe flare with the related valve.

2.Screw in the flare nut by hand and then tighten the nut with spanner and torque wrench by referring to the following:

NOTE: Connect the connection pipe to indoor unit at first and then to outdoor unit. Handle pi-ping bending with care. Do

not damage the connection pipe. Ensure that the joint nut is tightened firmly, otherwise, it may cause leakage.

(N·m)

Ф6

Ф 9.52

Ф 12

31 35

15 20 50 55

Ф 16 60 65 Ф 19 70 75

Hex nut diameter

Tightening torque

Fig.5

Mounting plate

Fixing hook

Mounting plate

Right

Right rear

Fig.4

Left rear

Left

Fig.3

Tailing 1

Tailing 2

Finally wrap it with tape

Gas side piping insulation

Water drainage pipe

Liquid side

Piping insulation

Gas side pipe

External connection

electric wire Liquid side piping

1.Remove the handle on the right side plate of outdoor unit.

2.Take off wire cord anchorage. Connect and fix power connection cord and power cord to the terminal board.Wiring should fit that of indoor unit.

3.Fix the power connection cord and power cord with wire clamps and then connect the corresponding connector.

4.Confirm if the wire has been fixed properly.

5.Reinstall the handle.

7.4.1 Electric Wiring

NOTE:

Incorrect wiring may cause malfunction of spare part. After the wire has been fixed, ensure there is free space between the connection and fixing places on the lead wire.

Schematic diagram being reference only, please refer to real product for authentic information.

Spanner

Torque wrench

Piping

Taper nut

Indoor unit piping

Handle

Indoor unit connection

brown

blue

blue black

yellow-green

yellowgreen

7.4 Install Outdoor Unit

Installation Manual

1. Connect charging hose of manifold valve to charge end of low pressure valve (both high/low pressure valves must be tightly shut).

2. Connect joint of charging hose to vacuum pump.

3. Fully open the handle of Lo manifold valve.

4. Open the vacuum pump for vacuumization. At the beginning, slightly loosen joint nut of low pressure valve to check if there is air coming inside. (If noise of vacuum pump has been changed, the reading of multimeter is 0) Then tighten the nut.

5. Keep vacuuming for more than 15mins and make sure the reading of multimeter is-1.0

10 pa(-76cmHg).

6. Fully open high/low pressure valves.

7. Remove charging hose from charging end of low pressure valve.

8. Tighten lid of low pressure valve. (As shown in Fig.6)

7.4.2 Air Purging and Leakage Test

7.4.3 Outdoor Condensate Drainage (only for Heat pump type )

During heating operation, the condensate water and defrosting water should be drained out reliably through the drain hose. Install the outdoor drain connector in a

25 hole on the the base plate and attach the drain hose to the connector,so

that the waste water formed in the outdoor unit can be drained out .The hole diameter 25 must be plugged. Whether to plug other holes will be determined by the dealers according to actual conditions.

Fig.6

Manifold Valve

Multimeter

-76cmHg

Lo Handle

Charging hose

Manometer

Hi handle

Vacuum pump

Low pressure valve

7.5.1 Check after Installation

Items to be checked Possible malfunction

Has the unit been fixed firmly?

The unit may drop, shake or emit noise.

Have you done the refrigerant leakage test?

It may cause insufficient cooling(heating)

Is thermal insulation sufficient?

It may cause condensation.

Is water drainage satisfactory?

It may cause water leakage.

Is the voltage in accordance with the rated voltage marked on the nameplate?

It may cause electric malfunction or damage the unit.

Is the electric wiring or piping connection installed correctly and securely?

It may cause electric malfunction or damage the parts.

Has the unit been securely earthed?

It may cause electrical leakage.

Is the power cord specified?

It may cause electric malfunction or damage the parts.

Is the inlet or outlet blocked? It may cause insufficient cooling(heating)

Is the length of connection pipes and refrigerant capacity recorded?

The refrigerant capacity is not accurate.

Drain-water hole

Bottom frame

Drain plug

Hose (available commercially, inner dia. 16mm)

Drain connecter

7.5 Check After Installation and Test Operation

Installation Manual

7.5.2 Operation Test

1.Before Operation Test (1)Do not switch on power before installation is finished completely. (2)Electric wiring must be connected correctly and securely. (3)Cut-off valves of the connection pipes should be opened. (4)All the impurities such as scraps and thrums must be cleared from the unit.

2.Operation Test Method (1)Switch on power and press "ON/OFF" button on the remote controller to start the operation. (2)Press MODE button to select the COOL, HEAT (Not available for cooling only unit ), FAN to check whether the

operation is normal or not.

Fig. a

filter

Air filter

Fig. b

Fig. c

Healthy

7.6.1 Installation of Healthy Filter

1.Lift up the front panel from it’s two ends, as shown by the arrow direction, and then remove the air filter.(as shown in Fig.a)

2.Attach the healthy filter onto the air filter, (as shown in Fig.b).

3. Install the air filter properly along the arrow direction in Fig.c, and then close the panel .

7.6.2 Cleaning and Maintenance

7.6.3 Service Life

Remove the healthy filter and reinstall it after cleaning according to the installation instruction. Don't use brush or hard things to cleanthe filter. After cleaning, be sure to dry it in the shade.

The general serive life for the healthy filter is about one year under normal condition. As for silver ion filter, it is invalid when its surface becomes black (green).

This supplementary instruction is provided for reference to the unit with healthy filter. If the graphics provided herein is different from the actualproduct, please refer to the atual product. The quantity of healthy filters is based on the actual delivery.

7.6 Installation and Maintenance of Healthy Filter

Exploded Views and Parts list

8. Exploded Views and Parts List

8.1 Indoor Unit

C1VI-18

Exploded Views and Parts list

The data above are subject to change without notice.

NO.

Description

Product Code

yssA lenaP tnorF1

yssA-buS retliF2

revoC wercS3

etalP e ﬂfaB4

yssA-buS esaC tnorF5 1 revuoL riA6 2 revuoL riA7

eugnot diocileH8

hsuB elixA tfeL9

yssa esaC raeR01

)yarT retaW( gulP rebbuR11

gniraeB fo gniR21

gniraeB fo yssa-bus teksaG-O31

naF wolF ssorC41

troppuS rotaropavE51

yssA rotaropavE61

emarF gnitnuoM llaW71

etalP sserP rotoM81

rotoM naF91

pmalC epiP02

esoh eganiarD12

rotoM petS22

knarC32

draoB yalpsiD42 revuoL ediuG52

hsuB elixA62

xoB cirtcelE72

draoB lanimreT82

2revoC xoB cirtcelE92

draoB niaM03

xoB cirtcelE fo revoc dleihS13

1revoC xoB cirtcelE23

repmuJ33

16BBC roticapaC43 yssA xoB cirtcelE53

elbaC gnitcennoC63 elbaC gnitcennoC73

38 Ambient

Temperature Sensor 390000453

rosneS erutarepmeT93

rellortnoC etomeR04

Part Code

Qty

C1VI-18

CB171N05000

106221002 21098022111 361025242 182221162 188221002 161121501 171121501 183221162 173021501 141221321 121021767 122025162 115021567 191025301 133121242 17392001 18122521 187121162 161121051 146121162 14100325 168021051 107028501 124056503 151121501 180024501 11080121102 11066201024 118021102 163783103 12902951 182122102 12010032024 134001033 13051120302 1650402004 081302004 1 1236000093 1314001503

Exploded Views and Parts list

C1VI-24

17 18

Exploded Views and Parts list

The data above are subject to change without notice.

NO.

Description

Product Code

yssA lenaP tnorF1

yssA-buS retliF2

revoC wercS3

esaC tnorF4

1 revuoL riA5

eugnot diocileH6

hsuB elixA tfeL7

yssa esaC raeR8

9 Rubber Plug (Water Tray)

gniraeB fo gniR01

11 O-Gasket sub-assy of Bearing

naF wolF ssorC21

troppuS rotaropavE31

yssA rotaropavE41

emarF gnitnuoM llaW51

etalP sserP rotoM61

rotoM naF71

pmalC epiP81

esoh eganiarD91

rotoM petS02

knarC12

draoB yalpsiD22

revuoL ediuG32

hsuB elixA42

xoB cirtcelE52

draoB lanimreT62

2revoC xoB cirtcelE72

draoB niaM82

xoB cirtcelE fo revoc dleihS92

1revoC xoB cirtcelE03

repmuJ13

16BBC roticapaC23 yssA xoB cirtcelE33

elbaC gnitcennoC43 elbaC gnitcennoC53

36 Ambient

Temperature Sensor

rosneS ebuT73

rellortnoC etomeR83

Part Code

Qty

C1VI24

CB171N05100

182321002 219022111 361025242 159221002 395121501 178121162 173021501 171120222

76712012 1

152025162

76512051 1

103025301 130121242 19622001 14002521 148121162 189021051 188121162 1504100325 11010031251 107028501 124056503 181121501 280024501 11080121102 11066201024 118021102 173783103 12012951 145122102 11010032024 143001033 10151120302 1650402004 0804502004

390000453 1

1195000093 114001503

Exploded Views and Parts list

8.2 Outdoor Unit

C1VO-18

8 976

Exploded Views and Parts list

The data above are subject to change without notice.

NO.

Description

Part Code

Qty

C1VO-18

Product Code

CB172W02500

12057031051 rotoM naF1 101001033 16BBC roticapaC2 131031102 xoB cirtcelE3 125201094 rotaidaR4 1329683103 draoB niaM5 18060030102 yssA xoB cirtcelE6 155201024 draoB lanimreT7 1P96130310etalP ediS tfeL8 1P43035210revoC poT9 12089330710 yssA-buS troppuS rotoM01 1 82059710)resnednoc(draob gnitroppuS11 171133210 yssA-buS draobpalC21 170036110 yssA resnednoC31 136002024 tresni rosneS41 13090300093 rosneS erutarepmeT51 1 68103134rotcaeR61 1P2044230310 etalP ediS thgiR71 113433262eldnaH giB81 148053170 yssA-buS evlav ffo-tuC91 1P1051131710 yssA-buS troppuS evlaV02 138053170yssA-buS evlav ffo-tuC12 150536030yssa-buS yrallipaC22 132632130 yssA evlaV yaW-432 13300400034 lioC tengaM42 351251867 teksaG rosserpmoC52 126250200 sgnitt ﬁ dna rosserpmoC62 190031162 tnioJ eganiarD72 1P86150210yssa-buS sissahC82 101033301 naF wolF laixA92 1P43033410 tenibaC03 151031422 llirG tnorF13

Exploded Views and Parts list

C1VO-24

1514

262729 2830

10 11 1287

Exploded Views and Parts list

NO.

Description

Part Code

Qty

C1VO-24

Product Code

CB172W02600

11036051051 rotoM naF1 184131410 )gn ﬁoorper ﬁ( xob cirtcelE2 101001033 16BBC roticapaC3 180031102 xoB cirtcelE4 125201094 rotaidaR5 1192783103 draoB niaM6 14086530620 yssA xoB cirtcelE7 155201024 draoB lanimreT8 110453262 eldnah tfel9 1P14050310 etalP ediS tfeL01 1P50055210 revoC poT11 102050710 yssA-buS troppuS rotoM21

101059710)resnednoc(draob gnitroppuS31 120923210 yssA-buS draobpalC41 12018931110yssA resnednoC51 134037410 llirG raeR61 140051162 pmalc gniriW71 11090300093rosneS erutarepmeT81 112003134 rotcaeR91 156000033 56BBC roticapaC02 189031410 yssa-bus pmalC roticapaC12 1P35050310 etalP ediS thgiR22 145253262 eldnaH32 146433170yssA-buS evlav ffo-tuC42 1P01051710 yssa troppus evlaV52 106033170 yssA-buS evlav ffo-tuC62 12058436030 yssa-buS yrallipaC72 169532130 yssA evlaV yaw-482 15400400034 lioC tengaM92 351251867 teksaG rosserpmoC03 126250200 sgnitt ﬁ dna rosserpmoC13 110432160 retcennoC eganiarD23 1P56830210 yssa-buS sissahC33 310431860gulP eganiarD43 130031102 )xob cirtcele fo revoc( draob detalusnI53 180053301 naF wolF laixA63 1P80053510 lenaP tnorF73 120051422 llirg tnorF83

The data above are subject to change without notice.

Troubleshooting

9. Troubleshooting

9.1 Precautions before Performing Inspection or Repair

NOTE: A large-capacity electrolytic capacitor is used in the outdoor unit controller(inverter).Therefore,if the power supply is turned off,charge(charging voltage DC280V to 380V)remains and discharging takes a lot of time.. After turning off the power source,if touching the charging section before discharging, an electrical shock may be caused. Discharge the electrolytic capacitor completely by using soldering iron,etc.

(1)remove the inverter cover(Outdoor Unit)

(2)As shown below,connect the discharge resistance ( approx.100

, 20W)or plug of the soldering iron to voltage between + - terminals of the

electrolytic capacitor ( test 3 “D” and “E” point) on PC Board for 30s, and then perform discharging

Be cautious during installation and maintenance. Do operation following the regulations to avoid electric shock and casualty or even death due to drop from high attitude. * Static maintenance is the maintenance during de-energization of the air conditioner. For static maintenance, make sure that the unit is de-energized and the plug is disconnected. *dynamic maintenance is the maintenance during energization of the unit. Before dynamic maintenance, check the electricity and ensure that there is ground wire on the site. Check if there is electricity on the housing and connection copper pipe of the air conditioner with voltage tester. After ensure insulation place and the safety, the maintenance can be performed. Take sufﬁ cient care to avoid directly touching any of the circuit parts without ﬁ rst turning off the power. At times such as when the circuit board is to be replaced, place the circuit board assembly in a vertical position. Normally,diagnose troubles according to the trouble diagnosis procedure as described below.(Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.)

No. Troubleshooting procedure

1 Conﬁ rmation 2 Judgement by Flashing LED of Indoor/Outdoor Unit 3 How to Check simply the main part

Troubleshooting

(1)Conﬁ rmation of Power Supply Conﬁ rm that the power breaker operates(ON) normally; (2)Conﬁ rmation of Power Voltage Conﬁ rm that power voltage is AC 220-240 ±10%. If power voltage is not in this range, the unit may not operate normally.

C1V0-18

C1V0-24

9.2 Conﬁ rmation

9.3 Flashing LED of Indoor/Outdoor Unit and Primary Judgement

Electric discharge position:

Plug of electric

iron

Plug of electric

iron

Electric discharge position:

Troubleshooting

No.

Malfunction Name

Display Method of Indoor Unit

Display Method of Outdoor Unit (Indicator has 3 kinds of display status and they will be displayed circularly every 5s.)

A/C status Possible Cause s

Dual-8

Code

Display

Indicator Display (during blinking, ON 0.5s and OFF 0.5s)

OFF Illuminated Blink

Operation Indicator

Cool Indicator

Heating IndicatorD5(D40)D6(D41)

D16

(D42)

D30

(D43)

1 High

pressure protection of system

E1 OFF 3s

and blink once

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

Possible reasons:

1. Refrigerant was superabundant;

2. Poor heat exchange (including ﬁ lth blockage of heat exchanger and bad radiating environment ); Ambient temperature is too high.

2 Antifreezing

protection

E2 OFF 3S

and blink twice

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

1. Poor air-return in indoor unit;

2. Fan speed is abnormal;

3. Evaporator is dirty.

3 High

discharge temperature protection of compressor

E4 OFF 3S

and blink 4 times

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

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

4 Overcurrent

protection

E5 OFF 3S

and blink 5 times

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

1. Supply voltage is unstable;

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

3. Evaporator is dirty.

Communication Malfunction

E6 OFF 3S

and blink 6 times

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

Refer to the corresponding malfunction analysis.

6 High

temperature resistant protection

E8 OFF 3S

and blink 8 times

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

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

7 Circuit PG

motor (indoor fan) has circuit malfunction by zero cross detection

U8 OFF 3S

and blink for 17 times

Operation of remote controller or control panel is available, but the unit wont act.

Control board is damaged.

8 PG motor

(indoor fan motor) does not operate

H6 OFF 3S

and blink 11 times

The complete unit will stop operation.

Poor connection for PGF in circuit diagram; Malfunction of indoor units control panel AP1; Malfunction of indoor units motor M1.

9 Malfunction

protection of jumper cap

C5 OFF 3S

and blink 15 times

The complete unit will stop operation.

Poor connection for the jumper cap on indoor units control panel AP1; please reinsert or replace the jumper cap;

Indoor ambient temperature sensor is open/short circuited

F1 OFF 3S

and blink once

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

1.Room temperature sensor hasnt been connected well with indoor units control panel AP1 (refer to the wiring diagram for indoor unit);

2.Room temperature sensor is damaged (please refer to the resistance table of temperature sensor)

Troubleshooting

No.

Malfunction Name

Display Method of Indoor Unit

Display Method of Outdoor Unit (Indicator has 3 kinds of display status and they will be displayed circularly every 5s.)

A/C status Possible Reasons

Dual-8

Code

Display

Indicator Display (during blinking, ON 0.5s and OFF 0.5s)

OFF Illuminated Blink

Operation Indicator

Cool Indicator

Heating Indicator

(D40)D6(D41)

D16

(D42)

D30

(D43)

Indoor evaporator temperature sensor is open/short circuited

F2 OFF 3S

and blink twice

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

1.Room temperature sensor hasnt been connected well with indoor units control panel AP1 (refer to the wiring diagram for indoor unit);

2.Room temperature sensor is damaged (please refer to the resistance table of temperature sensor)

Outdoor ambient temperature sensor is open/short circuited

F3 OFF 3S

and blink 3 times

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

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

Outdoor condenser temperature sensor is open/short circuited

F4 OFF 3S

and blink 4 times

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

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

Outdoor discharge temperature sensor is open/short circuited

F5 OFF 3S

and blink 5 times

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

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

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

Limit/ decrease frequency due to overload

F6 OFF 3S

and blink for 6 times

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

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

Decrease frequency due to overcurrent

F8 OFF 3S

and blink 8 times

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

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

Decrease frequency due to high air discharge

F9 OFF 3S

and blink 9 times

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

Overload or temperature is too high; Refrigerant is insufﬁ cient; Malfunction of electric expansion valve (EKV)

Voltage for DC bus-bar is too high

PH OFF 3S

and blink 11 times

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

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

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

Malfunction of complete units current detection

U5 OFF 3S

and blink 13 times

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

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

20 Overcurrent

protection of phase current for compressor

P5 OFF 3S

and blink 15 times

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

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

Troubleshooting

No.

Malfunction Name

Display Method of Indoor Unit

Display Method of Outdoor Unit (Indicator has 3 kinds of display status and they will be displayed circularly every 5s.)

A/C status Possible Reasons

Dual-8

Code

Display

Indicator Display (during blinking, ON 0.5s and OFF 0.5s)

OFF Illuminated Blink

Operation Indicator

Cool Indicator

Heating Indicator

(D40)D6(D41)

D16

(D42)

D30

(D43)

S3 FFO1HgnitsorfeD12 and blink once

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

Its the normal state

22 Static

dedusting protection

S3 FFO2H and blink twice

23 Overload

protection for compressor

S3 FFO3H and blink 3 times

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

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

2.Refer to the malfunction analysis ( discharge protection, overload)

24 System is

abnormal

S3 FFO4H and blink 4 times

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

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

25 IPM

protection

S3 FFO5H and blink 5 times

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

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

26 PFC

protection

S3 FFOCH and blink 6 times

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

Refer to the malfunction analysis

27 Desynchron-

izing of compressor

S3 FFO7H and blink 7 times

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

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

28 Decrease

frequency due to high temperature resistant during heating operation

S3 FFO0H and blink 10 times

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

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

29 Failure start-

S3 FFOCL and blink 11 times

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

Refer to the malfunction analysis

30 Malfunction

of phase current detection circuit for compressor

S3 FFO1U and blink 13 times

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

Replace outdoor control panel AP1

Troubleshooting

No.

Malfunction Name

Display Method of Indoor Unit

Display Method of Outdoor Unit (Indicator has 3 kinds of display status and they will be displayed circularly every 5s.)

A/C status Possible Reasons

Dual-8

Code

Display

Indicator Display (during blinking, ON 0.5s and OFF 0.5s)

OFF Illuminated Blink

Operation Indicator

Cool Indicator

Heating Indicator

(D40)D6(D41)

D16

(D42)

D30

(D43)

31 EEPROM

malfunction

S3 FFOEE and blink 15 times

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

Replace outdoor control panel AP1

32 Charging

malfunction of capacitor

S3 FFOUP and blink 17 times

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

Refer to the part three—charging malfunction analysis of capacitor

33 Malfunction

of module temperature sensor circuit

S3 FFO7P and blink 18 times

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

Replace outdoor control panel AP1

34 Module high

temperature protection

S3 FFO8P and blink 19 times

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

After the complete unit is deenergized for 20mins, check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufﬁ cient and whether the radiator is inserted tightly. If its no use, please replace control panel AP1.

35 Malfunction

of voltage dropping for DC bus-bar

S3 FFO3U and blink 20 times

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

Supply voltage is unstable

36 Voltage of

DC bus-bar is too low

S3 FFOLP and blink 21 times

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

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

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

37 Limit/

decrease frequency due to high temperature of module

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

Discharging after the complete unit is de-energized for 20mins, check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufﬁ cient and whether the radiator is inserted tightly. If its no use, please replace control panel AP1.

38 The four-way

valve is abnormal

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

1.Supply voltage is lower than AC175V;

2.Wiring terminal 4V is loosened or broken;

3.4V is damaged, please replace 4V.

39 Zero-

crossing malfunction of outdoor unit

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

Replace outdoor control panel AP1

40 Limit/

decrease frequency due to antifreezing

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

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

Troubleshooting

4.1 Indoor unit:

(1)Temperature sensor malfunction

Start

Insert the temperature

sensor tightly

yes

Malfunction is

eliminated.

Make the parts upright

yes

Malfunction is

eliminated.

Replace the controller with

one of the same model

End

yes

Malfunction is

removed.

yes

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

Is there short circuit due to tri-pover of the parts?

Is the temperature sensor normal according to the Resistance Table?

Replace it with a temperature sensor of the same model

9.4 How to Check simply the main part

Troubleshooting

(2)PG motor (indoor fan) does not operate (H6)

Stir the fan blade with a hand when

the unit is DEENERGIZED.

Does the blade rotate unsmoothly?

Reinstall the motor

and the blade to

make it rotate

smoothly.

Yes

Is the feedback terminal of PG motor loose?

Insert the feedback

terminal tightly .

Mainboard

malfunction

;

Replace it.

Yes

Replace the fan

motor.

End

Insert the control

terminal tightly.

Yes

Re-energize to turn on the unit; measure within 1 min after the louvers are opened whether the output voltage on the control terminal of the PG motor is over 50V?

Yes

Is the malfunction eliminated?

Yes

Is the control terminal of PG motor loose?

Is the malfunction eliminated?

“H6”is displayed on the unit.

Possible causes:

1. Fan motor is locked;

2. The.feedback.terminal of PG motor is not connected tightly;

3. The control terminal of PG motor is not connected tightly;

4. Motor is damaged;

5. Malfunction of the rotation speed detection circuit of the mainboard. See the

chart below:

Troubleshooting

(3)Jumper cap malfunction (C5)

C5 is displayed

on the unit.

Is there jumper cap on the

controller?

Install a matching

jumper cap.

Is the jumper cap inserted

incorrectly or improperly?

Re-insert the jumper

cap

The mainboard is

defined abnormal

replace it

Yes

End

Is the malfunction eliminated?

No Yes

Replace the jumper

cap

Yes

Is the

malfunction

eliminated?

Is the

malfunction

eliminated?

Possible causes:

1. There is no jumper cap on the controller;

2. Jumper cap is not inserted properly and tightly;

3. Jumper cap is damaged;

4. Controller is damaged. See the

chart below:

Troubleshooting

4.2 Outdoor unit:

(1)Key detection point

Test1

Test2

Test3

Test4

Test5

Test6

Test7

Tset8

GND

Test12

D E

Test10

Test9

Test13

Test11

C1VO-18

Troubleshooting

Test point

No.

noitidnoc lamron rednu eulav tseT stnemele detaleR tniop tseT

V562-V061 eriw evil ,eriw lartueN C dna A neewteB 1 tseT V562-V061 eriw evil ,eriw lartueN C dna B neewteB 2 tseT

Test 3 Between D and E Electrolytic capacitor of DC bas bar DC 180V-380V Test 4 Between F and G Electrolytic capacitor of switch power DC 180V-380V

Test 5

Both ends of diode D10

V6.51-V5.41 CD )V51+ eludom MPI( 01D

Test 6

Both ends of electrolytic capacitor C40

V31-V21 CD )rewop V21+( 04C

Test 7

Both ends of electrolytic capacitor C82

V5 CD )rewop V5+( 28C

Test 8

Both ends of electrolytic capacitor C225

V3.3 CD )rewop V3.3+( 522C

Test 9 Between S and T Communication circular current DC 56V Test 10

Between point N and GND

R78 to N terminal (ground) (signal receiving terminal of outdoor unit)

Jumping between 0V and 3.3V Test 11 U12 Between 1 and 2 at leading foot of U12 Jumping between 0V and 3.3V Test 12

Between point M and GND

R75 to M terminal (signal sending terminal of outdoor unit)

Jumping between 0V and 3.3V Test 13 U15 Between 3 and 4 at leading foot of U15 Jumping between 0V and 3.3V

Troubleshooting

Test1

Test2Test3 Test4

Test5 Test6 Test7 Tset8

Test9

Test12

D E

F G

Test10

Test14

Test11

Test13

C1VO-24

Troubleshooting

Test point

No.

noitidnoc lamron rednu eulav tseT stnemele detaleR tniop tseT

V562-V061 eriw evil ,eriw lartueN C dna A neewteB 1 tseT

V562-V061 eriw evil ,eriw lartueN C dna B neewteB 2 tseT Test 3 Between D and E Electrolytic capacitor of DC bas bar DC 180V-380V Test 4 Between F and G Electrolytic capacitor of switch power DC 180V-380V

Test 5

Both ends of diode D10

V6.51-V5.41 CD )V51+ eludom MPI( 01D

Test 6

Both ends of sheet capacitor C911

V31-V21 CD )rewop V21+( 119C

Test 7

Both ends of sheet capacitor C914

V5 CD )rewop V5+( 419C

Test 8

Both ends of sheet capacitor C83

V3.3 CD )rewop V3.3+( 38C

Test 9

Both ends of sheet capacitor C912

V81-51 CD )rewop V71+( 219C Test 10

Between point N and GND

R78 to N terminal (ground) (signal receiving terminal of outdoor unit)

Jumping between 0V and 3.3V Test 11 U12 Between 1 and 2 at leading foot of U12 Jumping between 0V and 3.3V Test 12

Between point M and GND

R75 to M terminal (signal sending terminal of outdoor unit)

Jumping between 0V and 3.3V Test 13 U15 Between 3 and 4 at leading foot of U15 Jumping between 0V and 3.3V

Test 14 Between S and T Communication circular current DC 56V

Troubleshooting

(2) Capacity charging malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit)

Main detection point:

Detect if the voltage of L and N terminal of wiring board is between 210AC-240AC by alternating voltage meter; Is reactor (L) well connected? Is connection wire loosened or pull-out? Is reactor (L) damaged?

Malfunction diagnosis process:

Turn on the unit and wait 1 minute

Use DC voltmeter

to measure the

voltage on the two

ends of electrolytic

capacitor

Voltage higher than 200V?

Fault with the voltage

testing circuit on

control panel AP1

Replace the control

panel AP1

Measure the AC voltage between terminal

L and N on wiring board

XT(power supply)

Voltage within

210VAC~250VAC?

Shut down the power and repair the power supply to restore the range 210VAC~250VAC

power on and restart the unit

If the fault is eliminated?

Shut down the power and wait 20 mi

nutes; or use DC voltmeter to measure the voltage on the two ends of capacitor (test3), until the voltage is lower than 20V

Check the

connection of reactor

(L in the Electrical

Wiring Diagram)

If the wiring of

reactor L

is normal?

Connect the reactor Laccording to Electrical Wiring Diagram correctly

Re-energize and turn on the unit

If the fault is eliminated?

End

Replace the control

panel AP1

Troubleshooting

(3) IPM protection, desynchronizing malfunction, phase current of compressor is overcurrent (AP1 below is control board of outdoor unit)

Main detection point:

If control board AP1 and compressor COMP is well connected? If they are loosened? If the connection sequence is correct?

Is voltage input in the normal range (Test the voltage between L, N of wiring board XT by DC voltage meter)? If coil resistance of compressor is normal? Is compressor coil insulating to copper pipe well? If the work load of unit is heavy? If radiating of unit is well? If the refrigerant charging is appropriate?

Malfunction diagnosis process:

Troubleshooting

Energize and

switch on

IPM protection

occurs after the machine has run for a

eriod of time?

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

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

Check the supply voltage and restore it to

210VAC~250VAC

Voltage between

the two ends of celectrolytic

capacitor (test3) is

Restart the unit. Before

protection occurs,

use DC voltmeter to

measure the voltage

between the two

ends of electrolytic

capacitor on control

panel AP1

(test3)

If the unit can

work

normally?

Please confirm:

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

obstructed by other

objects which affect

the heat exchange of indoor and outdoor unit.

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

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

pressure is too high

and exceeds the

permissible range?

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

5. Other conditions resulting in that the system pressure becomes too high.

The connection

of capacitor C2

is loose.

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

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

between the two ends of

capacitor C2, until the

voltage is lower than 20V

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

Replace the

control panel AP1

Take corrective actions according to Technical Service Manual, and

then energize and start

the unit.

If there is any

abnormality

described above?

Replace the

control panel AP1

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

Connect the control panel

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

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

compressor resistance on

Service Manual.

If the

resistance is

normal?

Use ohmmeter to measure the resistance between the two

terminals of compressor

COMP and copper tube.

Replace the compressor

COMP

Resistance higher

than 500MΩ?

Replace the

control panel

AP1

END

Y N

If the unit can

work normallv?

If the unit can

work normally?

If the unit can

work normally?

If the unit can

work

normally?

higher than 250V

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

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

If capacitor C2 is failed?

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

Troubleshooting

(4) Diagnosis for anti-high temperature, overload protection (AP1 below is control board of outdoor unit)

Main detection point:

If the outdoor ambient temperature is in normal range; If the indoor and outdoor fan is running normal; If the radiating environment of indoor and outdoor unit is well.

Malfunction diagnosis process:

1. Check if fan terminal OFAN is connected well

2. Test if resistance value of any two terminals is less than 1k

with ohmic meter

If the indoor and outdoor

fan work well?

After the unit de-

energized for 20min

Replace

control board

AP1

If the radiating of outdoor

and indoor unit is well?

Improve the

radiating

environment of

unit

Replace

outdoor fan

Replace fan capacitor C1

Anti-high temperature,

overload protection

Normal protection, please use

it after improve the outdoor

ambient temperature

If the outdoor ambient temperature is

higher than 53 ºC?

Troubleshooting

(5) Diagnosis for failure start up malfunction (AP1 below is control board of outdoor unit)

Main detection point:

If the compressor wiring is correct? If the stop time of compressor is enough? If the compressor is damaged? If the refrigerant charging is too much?

Malfunction diagnosis process:

Energize the unit

and start it

If the compressor wire COMP(UVW) is

well connected and connection sequence

is correct

Replace control board AP1

Replace the compressor

If malfunction is

removed?

If the stop time of compressor

is more than 3min?

If the stop time is not enough and the high and low pressure of system is not balance , please start it after 3min

Improve the connection situation of control board AP1 and compressor COMP, connect it with wiring diagram

If the refrigerant charging is

too much?

Does the unit start

up normally?

Charge the refrigerant according to service manual

Does the unit start

up normally?

Troubleshooting

(6) Diagnosis for compressor synchronism (AP1 below is control board of outdoor unit)

Main detection point:

If the system pressure is over-high? If the work voltage is over-low?

Malfunction diagnosis process:

If the compressor wire COMP(UVW) is well

connected, the connection sequence

forwards to clockwise direction?

Check if the fan

terminal OFAN is

connected well

Replace

compressor

If the outdoor fan works

normally?

If the stop time of

compressor is more than

3min

Synchronism after

energize the unit

and start it

Connect

wire well

Synchronism

occurred during

operation

Replace

control board

AP1

If the radiating of unit is

well?

Remove

malfunction?

Improve the radiating of unit (clean heat exchanger and increase ventilation)

Replace fan

capacitor C1

Replace

outdoor fan

Replace

control board

AP1

Remove

malfunction?

Replace

compressor

If the input voltage of unit

is normal?

Start to run until the power resume normal voltage

If the refrigerant is too

much?

Charge the refrigerant with service manual

Troubleshooting

(7) Diagnosis for overload and discharge malfunction (AP1 below is control board of outdoor unit)

Main detection point:

If the electron expansion valve is connected well? Is the expansion valve damaged? If the refrigerant is leakage? If the overload protector is damaged?

Malfunction diagnosis process:

Connect wire well with wiring diagram

Replace EKV

coil of electron

expansion valve

If the wiring terminal FA of electron

expansion is well connected?

Remove

malfunction?

The resistance value of

firs t 4 l ea d fo ot an d th e fif th lead foot is similar,

less than 100

After the unit

de-energized

for 20min

Remove

malfunction?

If the overload protector SAT

is well connected?

Under ambient temperature, test the

resistance of overload protector with ohmic

Replace overload

protector SAT

Check refrigerant, if there is

leakage, please refer to

specification

Replace

control board

AP1

Troubleshooting

(8) PFC (correction for power factor) malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit)

Main detection point:

Check if reactor (L) of outdoor unit and PFC capacity are damaged

Malfunction diagnosis process:

Start

If the resistance

value is 0

Remove PFC capacity

and test resistance of

two terminals

Capacity is

short

circuit and

replace it

Re-energize

the unit and

start it

Cut the terminal of reactor,

test the resistance between two terminals of reactor with ohmic meter

Replace the

reactor

Re-

energize

the unit and

start it

Check the

connection wire

of reactor (L) of

outdoor unit and

PFC capacity

If there is damaged

short circuit

Replace

connection

wire with circuit

diagram

Replace

control board

AP1

If there is damaged

short circuit

If the malfunction is

removed?

If the malfunction is

removed?

If the malfunction is

removed?

End

Troubleshooting

(9) Communication malfunction (AP1 below is control board of outdoor unit)

Main detection point:

Check if the connection wire and the built-in wiring of indoor and outdoor unit is connected well and no damaged; If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is

damaged?

Malfunction diagnosis process:

Start

Check communication

circuit of outdoor unit

Problem of

communication

circuit

Check built-

in wiring of indoor and

outdoor unit

Connection

correct?

Malfunction of

circuit is detected with control board

AP1 voltage

Check connection wire of indoor and

outdoor unit with

circuit diagram

Check connection wire of indoor and

outdoor unit with

circuit diagram

If the unit is operation

normal before malfunction

If the wiring is

damaged?

If the malfunction

is removed?

If the malfunction

is removed?

Replace indoor

board

Replace outdoor

mainboard AP11

If the

malfunction is

removed?

Troubleshooting

(10) Diagnosis process for outdoor communication circuit:

Start

Test voltage

value with Test

12 position in

diagram with

voltage meter

Number jumping

Outdoor unit

malfunction

Test voltage value with Test 13(18K) 11(24K) position in diagram with voltage meter

Number jumping

Test voltage

value with Test

10 position in

diagram with

voltage meter

Number jumping

Test voltage value with Test 11(18K) 13(24K) position in diagram with voltage meter

Number jumping

The circuit of

outdoor unit

communication

is normal

End

Troubleshooting

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

-19 138.1 20 18.75 59 3.848 98 1.071

-18 128.6 21 17.93 60 3.711 99 1.039

-17 121.6 22 17.14 61 3.579 100 1.009

-16 115 23 16.39 62 3.454 101 0.98

-15 108.7 24 15.68 63 3.333 102 0.952

-14 102.9 25 15 64 3.217 103 0.925

-13 97.4 26 14.36 65 3.105 104 0.898

-12 92.22 27 13.74 66 2.998 105 0.873

-11 87.35 28 13.16 67 2.896 106 0.848

-10 82.75 29 12.6 68 2.797 107 0.825

-9 78.43 30 12.07 69 2.702 108 0.802

-8 74.35 31 11.57 70 2.611 109 0.779

-7 70.5 32 11.09 71 2.523 110 0.758

-6 66.88 33 10.63 72 2.439 111 0.737

-5 63.46 34 10.2 73 2.358 112 0.717

-4 60.23 35 9.779 74 2.28 113 0.697

-3 57.18 36 9.382 75 2.206 114 0.678

-2 54.31 37 9.003 76 2.133 115 0.66

-1 51.59 38 8.642 77 2.064 116 0.642 0 49.02 39 8.297 78 1.997 117 0.625 1 46.6 40 7.967 79 1.933 118 0.608 2 44.31 41 7.653 80 1.871 119 0.592 3 42.14 42 7.352 81 1.811 120 0.577 4 40.09 43 7.065 82 1.754 121 0.561 5 38.15 44 6.791 83 1.699 122 0.547 6 36.32 45 6.529 84 1.645 123 0.532

7 34.58 46 6.278 85

1.594 124 0.519

8 32.94 47 6.038 86 1.544 125 0.505

9 31.38 48 5.809 87 1.497 126 0.492

10 29.9 49 5.589 88 1.451 127 0.48 11 28.51 50 5.379 89 1.408 128 0.467 12 27.18 51 5.197 90 1.363 129 0.456 13 25.92 52 4.986 91 1.322 130 0.444 14 24.73 53 4.802 92 1.282 131 0.433 15 23.6 54 4.625 93 1.244 132 0.422 16 22.53 55 4.456 94 1.207 133 0.412 17 21.51 56 4.294 95 1.171 134 0.401 18 20.54 57 4.139 96 1.136 135 0.391 19 19.63 58 3.99 97 1.103 136 0.382

Appendix 1: Resistance Table for Indoor and Outdoor Ambient Temperature Sensors (15K)

Troubleshooting

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

-19 181.4 20 25.01 59 5.13 98 1.427

-18 171.4 21 23.9 60 4.948 99 1.386

-17 162.1 22 22.85 61 4.773 100 1.346

-16 153.3 23 21.85 62 4.605 101 1.307

-15 145 24 20.9 63 4.443 102 1.269

-14 137.2 25 20 64 4.289 103 1.233

-13 129.9 26 19.14 65 4.14 104 1.198

-12 123 27 18.13 66 3.998 105 1.164

-11 116.5 28 17.55 67 3.861 106 1.131

-10 110.3 29 16.8 68 3.729 107 1.099

-9 104.6 30 16.1 69 3.603 108 1.069

-8 99.13 31 15.43 70 3.481 109 1.039

-7 94 32 14.79 71 3.364 110 1.01

-6 89.17 33 14.18 72 3.252 111 0.983

-5 84.61 34 13.59 73 3.144 112 0.956

-4 80.31 35 13.04 74 3.04 113 0.93

-3 76.24 36 12.51 75 2.94 114 0.904

-2 72.41 37 12 76 2.844 115 0.88

-1 68.79 38 11.52 77 2.752 116 0.856 0 65.37 39 11.06 78 2.663 117 0.833 1 62.13 40 10.62 79 2.577 118 0.811 2 59.08 41 10.2 80 2.495 119 0.77 3 56.19 42 9.803 81 2.415 120 0.769 4 53.46 43 9.42 82 2.339 121 0.746 5 50.87 44 9.054 83 2.265 122 0.729 6 48.42 45 8.705 84 2.194 123 0.71

7 46.11 46

8.37 85 2.125 124 0.692 8 43.92 47 8.051 86 2.059 125 0.674 9 41.84 48 7.745 87 1.996 126 0.658

10 39.87 49 7.453 88 1.934 127 0.64 11 38.01 50 7.173 89 1.875 128 0.623 12 36.24 51 6.905 90 1.818 129 0.607 13 34.57 52 6.648 91 1.736 130 0.592 14 32.98 53 6.403 92 1.71 131 0.577 15 31.47 54 6.167 93 1.658 132 0.563 16 30.04 55 5.942 94 1.609 133 0.549 17 28.68 56 5.726 95 1.561 134 0.535 18 27.39 57 5.519 96 1.515 135 0.521 19 26.17 58 5.32 97 1.47 136 0.509

Appendix 2: Resistance Table for Indoor and Outdoor Tube Temperature Sensor (20K)

Troubleshooting

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

-29 853.5 10 98 49 18.34 88 4.75

-28 799.8 11 93.42 50 17.65 89 4.61

-27 750 12 89.07 51 16.99 90 4.47

-26 703.8 13 84.95 52 16.36 91 4.33

-25 660.8 14 81.05 53 15.75 92 4.20

-24 620.8 15 77.35 54 15.17 93 4.08

-23 580.6 16 73.83 55 14.62 94 3.96

-22 548.9 17 70.5 56 14.09 95 3.84

-21 516.6 18 67.34 57 13.58 96 3.73

-20 486.5 19 64.33 58 13.09 97 3.62

-19 458.3 20 61.48 59 12.62 98 3.51

-18 432 21 58.77 60 12.17 99 3.41

-17 407.4 22 56.19 61 11.74 100 3.32

-16 384.5 23 53.74 62 11.32 101 3.22

-15 362.9 24 51.41 63 10.93 102 3.13

-14 342.8 25 49.19 64 10.54 103 3.04

-13 323.9 26 47.08 65 10.18 104 2.96

-12 306.2 27 45.07 66 9.83 105 2.87

-11 289.6 28 43.16 67 9.49 106 2.79

-10 274 29 41.34 68 9.17 107 2.72

-9 259.3 30 39.61 69 8.85 108 2.64

-8 245.6 31 37.96 70 8.56 109 2.57

-7 232.6 32 36.38 71 8.27 110 2.50

-6 220.5 33 34.88 72 7.99 111 2.43

-5 209 34 33.45 73 7.73 112 2.37

-4 198.3 35 32.09 74 7.47 113 2.30

-3 199.1 36 30.79 75 7.22 1

14 2.24

-2 178.5 37 29.54 76 7.00 115 2.18

-1 169.5 38 28.36 77 6.76 116 2.12 0 161 39 27.23 78 6.54 117 2.07 1 153 40 26.15 79 6.33 118 2.02 2 145.4 41 25.11 80 6.13 119 1.96 3 138.3 42 24.13 81 5.93 120 1.91 4 131.5 43 23.19 82 5.75 121 1.86 5 125.1 44 22.29 83 5.57 122 1.82 6 119.1 45 21.43 84 5.39 123 1.77 7 113.4 46 20.6 85 5.22 124 1.73 8 108 47 19.81 86 5.06 125 1.68 9 102.8 48 19.06 87 4.90 126 1.64

Appendix 3: Resistance Table for Outdoor Discharge Temperature Sensor (50K)

Removal Procedure

10. Removal Procedure

10.1 Removal Procedure of Indoor Unit

Warning

Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly.

Steps

Procedure

1. Remove filter

2. Remove panel

Loosen the clasps on filter.

Remove the filter.

Loosen the clasps on panel and then remove the panel.

Open the panel

Clasp

Filter

Removal Procedure

erudecorPspetS

3. Remove horizontal louver

4. Remove electric box cover 2

Twist off one screw on electric box cover 2, and then remove the electric box cover 2.

Disassemble the axial bush on horizontal louver, bend the horizontal louver to let the shaft come out of the groove and then remove the horizontal louver.

Horizontal louver

Electric box cover 2

Removal Procedure

5. Remove swing blade

6. Remove front case

Open the screw cap on front case, and twist off the 7 screws fixing the front case with screwdriver.

Loosen the 6 clasps on front case.

Loosen the clasps on horizontal louver and then remove the swing blade.

erudecorPspetS

Clasp

Removal Procedure

7. Remove electric box cover

Pull out the axial bush on temperature sensor.

Twist off the screws fixing the earthing wire with screwdriver.

Pull out the electric box cover.

Remove the front case.

Steps

Procedure

Electric box cover

Front case

Removal Procedure

8. Remove electric box

Pull out the wiring terminal on displayer.

Pull out the connection wire between swing motor and motor.

Twist off the screws fixing the electric box with screwdriver.

Twist off the screws fixing the displayer with screwdriver.

erudecorPspetS

Screw

Display board

Removal Procedure

9. Remove evaporator

Remove the electric box.

Twist off the screws fixing the pipe press plate with screwdriver.

Steps

Procedure

Remove the pipe press plate.

Twist off the 3 screws fixing the evaporator with screwdriver.

Electric box

Screw

Pipe press plate

Screw

Removal Procedure

Adjust the pipeline slightly

Remove the evaporator.

Steps

Procedure

Loosen the clasps between evaporator and chassis.

Evaporator

Removal Procedure

10. Remove motor and cross flow blade

Remove cross flow blade and motor.

Twist off the screws fixing the motor press plate with screwdriver.

erudecorPspetS

Remove the motor press plate.

Twist off the screws fixing the swing motor with screwdriver.

Motor

Cross flow blade

Removal Procedure

Remove the motor.

Remove swing motor.

Twist off the screws fixing the cross flow blade and swing motor with screwdriver.

erudecorPspetS

Cross flow blade

Motor

Removal Procedure

Warning

Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly.

10.2 Removal Procedure of Outdoor Unit

18K

1. Remov e top p anel

Appearance

Remove the 3 scre ws connecting the to p pa nel wi th the front pa nel and the right side plate, and then remove the top pa nel.

2. Remove grille and p anel

Remove the 2 scr ew s connecting the grille and the panel, and then remove the grille.

grille

Twist off the screws used for fixing the handle, pull the handle up ward to remove it .

Handle

Top panel

(not show electric heating tape)

Removal Procedure

Remove the 5 screws connecting the panel with the chassis and the motor support, and then remove the panel.

3. Remove left side plate and right side plate

Remove the screws connecting the right side plate with the chassis, the valve support and the electric box, and then remove the right side plate assy.

Remove the screws connecting the left side plate and the chassis, and then remove the left side plate assy

panel

left side plate

right side plate

Removal Procedure

fan motor fixing frame

4. Remove fan motor

5. Remove electric box

Remove the screws fixing the electric box sub-assy; loosen the wire bundle; pull out the wiring terminals and then pull the electric box upwards to remove it.

Remove the 4 tapping screws fixing the motor; disconnect the leading wire insert of the motor and then remove the motor.Remove the 2 tapping screws fixing the motor support and then pull the motor support upwards to remove it.

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

axial flow blade

electric box

fan motor

Removal Procedure

6.Remove soundproof sponge

Since the piping ports on the soundproof sponge are torn easily, remove the soundproof sponge carefully.

soundproof sponge

7. Remove isolation sheet

Remove the 3 screws fixing the isolation sheet and then remove the Isolation sheet.

Isolation sheet

Removal Procedure

8.Remove 4-way valve assy

Discharge the refrigerant completely;unsolder the pipelines connecting the compressor and the condenser assy, and then remove the 4-way valve assy.

9. Remove compressor

compressor

4-way valve assy

10.Remove condenser sub-assy

Remove the 3 foot nuts fixing the compressor, and then remove the compressor.

Remove the screws connecting the support (condenser) and condenser assy,and then remove the support (condenser).

support

Removal Procedure

Remove the chassis sub-assy and condenser sub-assy.

condenser sub-assy

chassis sub-assy

Removal Procedure

Warning

Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly.

24K

1. Remove

Handle and

top panel

Remove the 3 screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.

2. Remove grille and panel

Remove the 2 screws connecting the grille and the panel, and then remove the grille.

top cover

grille

Twist off the screws used for fixing the handle, pull the handle up ward to remove it

Handle

(not show electric heating tape)

Removal Procedure

Remove the 5 screws connecting the panel with the chassis and the motor support, and then remove the panel.

3. Remove left side plate and right side plate

Remove the screws connecting the right side plate with the chassis, the valve support and the electric box, and then remove the right side plate assy.

Remove the screws connecting the left side plate and the chassis, and then remove the left side plate assy.

panel

right side plate

left side plate

Removal Procedure

fan motor fixing frame

4. Remove fan motor

5. Remove electric box

Remove the screws fixing the electric box sub-assy; loosen the wire bundle; pull out the wiring terminals and then pull the

electric box upwards to remove it.

Remove the 4 tapping screws fixing the motor; disconnect the leading wire insert of the motor and then remove the motor. Remove the 2 tapping screws fixing the motor support and then pull the motor support upwards to remove it.

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

axial flow blade

electric box

fan motor

Removal Procedure

6.Remove

fireproof electric box and

soundproof sponge

Twist off the screws on fireproof electric box and then remove the fireproof electric box.

Fireproof electric box

Since the piping ports on the soundproof sponge are torn easily, remove the soundproof sponge carefully.

soundproof sponge

7. Remove isolation sheet

Remove the 3 screws fixing the isolationsheet and then remove the Isolation sheet.

isolation sheet

Removal Procedure

8. Remove 4-way valve assy

Discharge the refrigerant completely;unsolder the pipelines connecting the compressor and the condenser assy,and then remove the 4-way valve assy.

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

Remove the screws connecting the support (condenser) and condenser assy,and then remove the support(condenser).

9. Remove compressor

compressor

4-way valve assy

10.Remove condenser sub-assy

support

Removal Procedure

Remove the chassis sub-assy and condenser sub-assy.

condenser sub-assy

chassis sub-assy

INVENTOR C1VI - 18, C1VO - 18, C1VI - 24, C1VO - 24 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual