koppel KV 36CC-ARF21 Service manual

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koppel KV 36CC-ARF21 Service manual | Manualzz

Contents

CONTENTS

Part 1

General Information ..................................................................................

1

Part 2

Indoor Units ...............................................................................................

6

Part 3

Outdoor Units ..........................................................................................

32

Part 4

Installation ...............................................................................................

63

Part 5

Control ......................................................................................................

74

Contents i

General Information

Part 1

General Information

1.Model Lists .......................................................................................

2

2.External Appearance .......................................................................

3

2.1 Indoor Units ..................................................................................

3

2.2 Outdoor Units ...............................................................................

3

3.Nomenclature

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

4

4.Features

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

5

3.Piping Diagrams ............................................................................

36

General Information 1

Nomenclature

1.

Model Lists

1.1 Indoor Units

R410A (capacity multiplied by 1000Btu/h)

Type Function 24 36 48

Four-way cassette Cooling Only √

Ceiling & floor Cooling Only √

1.2 Outdoor Units

Universal Outdoor unit Model Compressor type

KV24ODU-ARF21

Compressor

Brand

Rotary DC Inverter GMCC

KV36ODU-ARF21

KV48ODU-ARF21

Rotary DC Inverter MITSUBISHI

Rotary DC Inverter MITSUBISHI

Matched indoor units

KV24CC-ARF21

KV24CM-ARF21

KV36CC-ARF21

KV36CM-ARF21

KV48CC-ARF21

KV48CM-ARF21

2 Indoor Units

2.

External Appearance

2.1 Indoor Units

Four-way Ceiling Cassette Ceiling-floor Mount: Convertible

Features

2.2 Outdoor Units

KV24ODU-ARF21

KV36ODU-ARF21

KV48ODU-ARF21

General Information 3

4

Nomenclature

3.

Nomenclature

3.1 Indoor Unit

3.2 Outdoor Unit

F Console Type

Indoor Units

Features

4.

Features

4.1 Universal outdoor unit design

Indoor unit with the same capacity can match with the same outdoor unit.

4.2 High efficiency and energy saving.

Thanks to the DC inverter technology and optimized piping system, the EER and COP of whole series can easily reach A-class.

4.3 Low noise and low starting current.

Thanks to the DC inverter technology, the system can work with low noise, and very small starting current.

4.4 Intelligent refrigerant adjustment technology.

Throttle part is made up of capillary and electronic expansion valve (EXV). The outdoor unit can output the most accurate capacity in any condition.

Outdoor unit built-in with low ambient kit, it can control the outdoor unit’s fan and cooling can be performed throughout the year for computer rooms, banquet halls, etc. Wide operation range

4.6 Indoor & outdoor unit’s power supply is separate.

4.7

All indoor units have network control function.

4.8 All indoor units have Auto-restart function.

General Information 5

Indoor Units

Part 2

Indoor Units

Four-way Ceiling Cassette Type ......................................................

7

Ceiling & Floor Type .........................................................................

20

6 Indoor Units

Four-way Ceiling Cassette Type

Four-way Ceiling Cassette Type

1.Features

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

8

2.Dimensions

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

11

3.Service Space ................................................................................

12

4.Wiring Diagrams ............................................................................

13

5.Capacity Tables .............................................................................

14

6.Air Velocity and Temperature Distributions ................................

15

7.Electric Characteristics ................................................................

16

8.Sound Levels .................................................................................

16

9.Accessories ..................................................................................

17

10.The Specification of Power .........................................................

18

11.Field Wiring .................................................................................

19

Four-way Ceiling Cassette Type 7

Features

1. Features

(1) Low operation noise

—Streamline plate ensures quietness

—Creates natural and comfortable environment

(2)

(3) Excellent performance. The optimal evaporator & sufficient airflow volume guarantees the excellent capacity

(4) The adoption of the most advanced 3- Dimensional Screw fan

—Reduces the air resistance passing through

—Smoothes the air flow

—Makes air speed distribution to the heat exchange uniform

(5) Fresh air makes life healthier and more comfortable.

(6) Drainage pump can take up the condenser water to750mm.

(7) Ultra thin machine body to easy installation and maintenance. 18K~24K:230mm, 36~48K:300mm.

8 Four-way Cassette Type

(8)

Features

(9)

(10)

(11)

(12) 4 speeds available, optional super high fan speed design suitable for the large building over 3m high.

(13) Adding digital tube displaying on the display board. LED can display the Error Code to make the malfunction checking easier.

Four-way Ceiling Cassette Type 9

The Specification of Power

(14) Reserve spaces for air side-outlet, it is available to connect duct pipe hence air supplying from the four sides to nearby small room..

(15) The connecting pipe and drop height is higher. Max. pipe length up to 50m

( refer to ①

, and Max. drop height up to 30m

( refer to ②

.

(16) Optimal design, smaller Control Box, Space saving and convenient for wiring,

Using fire resistance galvanized steel for E-box material. Metal box make the control part more stable and prevent damaging.

10 Four-way Ceiling Cassette Type

Field Wiring

2. Dimensions

Unit: mm

MODEL

KV24CC-ARF21

KV36CC-ARF21

KV48CC-ARF21

A

230

300

B

Ф 15.9

Ф 15.9

C

Ф 9.5

Ф 9.5

H

>260

>330

Four-way Ceiling Cassette Type 11

The Specification of Power

3. Service Space

N ece ssary room outlet intlet outlet

Chart 1 ground

Note: 18000-24000Btu/h(R22) Series A

36000-48000Btu/h(R 22) Series A

260m m

330m m

Ho ok

B od y

Nut

Ce ilin g

88 0m m

Chart 2

Note: 18000-2400 0Btu/h(R22 ) Series B=240mm

36000-4800 0Btu/h(R22) Series B=310mm

Pan el

Drain side A Tubing side

780(Hook-location)

840(Body)

880(Ceiling hole)

950(Panel)

>1000mm

B ody

Central hole

Chart 3

>1000mm

Bolt M6X12

Chart 5

I nstallation pape r board

12 Four-way Ceiling Cassette Type

4. Wiring Diagrams

KV24CC-ARF21, KV36CC-ARF21

KV48CC-ARF21

Field Wiring

Four-way Ceiling Cassette Type 13

The Specification of Power

5. Capacity Tables

5.1 Cooling Capacity

KV24CC-ARF21

Cooling

Indoor Conditions

21/15ºC DB/WB

24/17ºC DB/WB

27/19ºC DB/WB

32/23ºC DB/WB

(kW)

TC

SC

Input

TC

SC

Input

TC

SC

Input

TC

SC

Input

KV36CC-ARF21

Cooling

Indoor Conditions

21/15ºC DB/WB

24/17ºC DB/WB

27/19ºC DB/WB

32/23ºC DB/WB

(kW)

TC

SC

Input

TC

SC

Input

TC

SC

Input

TC

SC

Input

KV48CC-ARF21

Cooling

Indoor Conditions

21/15ºC DB/WB

24/17ºC DB/WB

27/19ºC DB/WB

32/23ºC DB/WB

(kW)

TC

SC

Input

TC

SC

Input

TC

SC

Input

TC

SC

Input

21ºC

11.33

8.38

3.42

11.66

8.75

3.63

11.88

8.79

3.71

12.10

10.29

3.88

21ºC

7.52

5.56

2.10

7.74

5.80

2.23

7.88

5.83

2.28

8.03

6.83

2.38

21ºC

14.42

10.67

3.89

14.84

11.13

4.13

15.12

11.19

4.22

15.40

13.09

4.41

Notes:

TC : Total capacity ; kW

SC: Sensible heat capacity ; kW

Input: Input power; kW

14

Outdoor conditions (DB)

28ºC

7.15

5.51

2.28

7.37

5.75

2.38

7.52

5.79

2.41

7.74

6.73

2.49

35ºC

6.79

5.43

2.38

7.01

5.68

2.49

7.30

5.69

2.54

7.59

6.68

2.66

Outdoor conditions (DB)

28ºC

10.78

8.30

3.71

11.11

8.67

3.88

11.33

8.72

3.92

11.66

10.14

4.04

35ºC

10.23

8.18

3.88

10.56

8.55

4.04

11.00

8.58

4.13

11.44

10.07

4.33

Outdoor conditions (DB)

28ºC

13.72

10.56

4.22

14.14

11.03

4.41

14.42

11.10

4.45

14.84

12.91

4.60

35ºC

13.02

10.42

4.41

13.44

10.89

4.60

14.00

10.92

4.69

14.56

12.81

4.92

43ºC

9.79

8.22

4.00

9.90

8.32

4.25

10.23

8.39

4.33

10.56

9.82

4.50

43ºC

6.50

5.46

2.46

6.57

5.52

2.61

6.79

5.57

2.66

7.01

6.52

2.76

43ºC

12.46

10.47

4.55

12.60

10.58

4.83

13.02

10.68

4.92

13.44

12.50

5.11

Four-way Ceiling Cassette Type

6. Air Velocity and Temperature Distributions

Airflow velocity

Temperature

Field Wiring

Four-way Ceiling Cassette Type 15

The Specification of Power

7. Electric Characteristics

Model

KV24CC-ARF21

KV36CC-ARF21

KV48CC-ARF21

Notes:

MFA: Max. Fuse Amps. (A)

8. Sound Levels

Hz

60

60

60

Indoor Unit

Voltage

220-240

220-240

220-240

Min

198

198

198

Max

254

254

254

Power Supply

MFA

15

15

15

Model

KV24CC-ARF21

KV36CC-ARF21

KV48CC-ARF21

FOUR-W AY CASSE TTE TYPE

1.0m

Microphone

H

42

44

44

Noise level dB(A)

M

40.5

42.5

42

L

39

41

41

16 Four-way Cassette Type

9. Accessories

INSTALLATION FITTINGS

Tubing & Fittings

Name

Installation paper board

Soundproof / insulation sheath

Connecting pipe group

Out-let pipe sheath

Drainpipe Fittings

Out-let pipe clasp

Drain joint

Seal ring

Remote controller & Its Frame

Remote controller & Its

Frame

Others

Installation accessory

(The product you have might not be provided the following accessories

Remote controller holder

Mounting screw(ST2.9×10-C-H)

Alkaline dry batteries (AM4)

Owner's manual

Installation manual

Expansible hook

Installation hook

Orifice

Shape

Field Wiring

1

1

1

1

Quantity

1

2

1

1

1

4

4

1

2

2

1

1

Four-way Ceiling Cassette Type 17

The Specification of Power

10. The Specification of Power

Type

Phase

Frequency and Voltage

Indoor unit Power

Power Wiring(mm 2 )

Outdoor unit Power

Circuit Breaker(A)

Phase

Frequency and Voltage

Power Wiring(mm 2 )

Circuit Breaker(A)

Indoor/outdoor connection wiring(Weak Electric Signal) (mm 2 )

Indoor/outdoor connection wiring(Strong Electric Signal) (mm 2 )

KV24CC-ARF21

1- Phase

220-240V~,

60Hz

3X1.0

15

1- Phase

220-240V~,60Hz

3X2.5

30

3X0.5

KV36CC-ARF21

KV48CC-ARF21

1- Phase

220-240V~,

60Hz

3X1.0

15

1- Phase

220-240V~,60Hz

3X3.3

40

3X0.5

18 Four-way Cassette Type

11. Field Wiring

Wiring chart

KV24CC-ARF21, KV36CC-ARF21, KV48CC-ARF21

Field Wiring

Four-way Ceiling Cassette Type 19

Ceiling & Floor Type

Ceiling & Floor Type

1.Features

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

21

2.Dimensions ...................................................................................

22

3.Service Space ................................................................................

23

4.Wiring Diagrams ............................................................................

23

5.Capacity Tables .............................................................................

24

6.Air Velocity and Temperature Distributions ................................

26

7.Electric Characteristics ................................................................

28

8.Sound Levels ................................................................................

28

9.Accessories ..................................................................................

29

10.The Specification of Power ........................................................

30

11.Field Wiring ..................................................................................

31

20 Ceiling & Floor Type

1. Features

1.1. New design, more modern and elegant appearance.

Field Wiring

1.2. Convenient installation

--The ceiling type can be easily installed into a corner of the ceiling even if the ceiling is very narrow

--It is especially useful when installation of an air conditioner in the center of the ceiling is impossible due to a structure such as one lighting.

1.3. Two direction auto swing (vertical & horizontal) and wide angle air flow,

--Air flow directional control minimizes the air resistance and produces wilder air flow to vertical direction.

--The range of horizontal air discharge is widened which secures wider air flow distribution to provide more comfortable air circulation no matter where the unit is set up

1.4. Three level fan speed, more humanism design, meets different air-supply requirement.

1.5. Water proof by utilizing the absorbing plastic film on water collector

1.6. Easy operation.

1.7. Remote control and optional wired control method.

Ceiling & Floor Type 21

The Specification of Power

2. Dimensions

a. Wall mounting installation b. Ceiling installation

22

Capacity (Btu/h)

KV24CM-ARF21

KV36CM-ARF21

KV48CM-ARF21

A

990

1280

1670

B

660

660

680

C

203

203

240

D

505

795

1070

E

506

506

450

F

907

1195

1542

G

200

200

200

Ceiling & Floor Type

3. Service Space

Field Wiring

Ceiling & Floor Type 23

The Specification of Power

4. Wiring Diagrams

KV24CM-ARF21, KV36CM-ARF21

KV48CM-ARF21

24 Ceiling & Floor Type

Field Wiring

5. Capacity Tables

6.1 Cooling Capacity

KV24CM-ARF21

Cooling

Indoor Conditions

21/15ºC DB/WB

24/17ºC DB/WB

27/19ºC DB/WB

32/23ºC DB/WB

(kW)

TC

SC

Input

TC

SC

Input

TC

SC

Input

TC

SC

Input

KV36CM-ARF21

High speed

Indoor Conditions

21/15ºC DB/WB

24/17ºC DB/WB

27/19ºC DB/WB

32/23ºC DB/WB

(kW)

TC

SC

Input

TC

SC

Input

TC

SC

Input

TC

SC

Input

KV48CM-ARF21

Cooling

Indoor Conditions

21/15ºC DB/WB

24/17ºC DB/WB

27/19ºC DB/WB

32/23ºC DB/WB

(kW)

TC

SC

Input

TC

SC

Input

TC

SC

Input

TC

SC

Input

Notes:

TC : Total capacity ; kW

SC: Sensible heat capacity ; kW

Input: Input power; kW

Ceiling & Floor Type

21ºC

7.52

5.56

2.10

7.74

5.80

2.23

7.88

5.83

2.28

8.03

6.83

2.38

21ºC

10.82

8.00

3.44

11.13

8.35

3.64

11.34

8.39

3.73

11.55

9.82

3.89

21ºC

14.42

10.67

3.89

14.84

11.13

4.13

15.12

11.19

4.22

15.40

13.09

4.41

Outdoor conditions (DB)

28ºC

7.15

5.51

35ºC

6.79

5.43

2.28

7.37

5.75

2.38

7.52

5.79

2.41

7.74

6.73

2.49

2.38

7.01

5.68

2.49

7.30

5.69

2.54

7.59

6.68

2.66

Indoor conditions (DB) at 0Pa

28ºC 35ºC

10.29 9.77

7.92

3.73

10.61

8.27

3.89

10.82

8.33

3.93

11.13

9.68

4.06

7.81

3.89

10.08

8.16

4.06

10.50

8.19

4.14

10.92

9.61

4.35

Outdoor conditions (DB)

28ºC

13.72

10.56

4.22

14.14

11.03

4.41

14.42

11.10

4.45

14.84

12.91

4.60

35ºC

13.02

10.42

4.41

13.44

10.89

4.60

14.00

10.92

4.69

14.56

12.81

4.92

43ºC

9.35

7.85

4.02

9.45

7.94

4.26

9.77

8.01

4.35

10.08

9.37

4.51

43ºC

12.46

10.47

4.55

12.60

10.58

4.83

13.02

10.68

4.92

13.44

12.50

5.11

43ºC

6.50

5.46

2.46

6.57

5.52

2.61

6.79

5.57

2.66

7.01

6.52

2.76

25

The Specification of Power

6. Air Velocity and Temperature Distributions

Discharge angle 60° (CEILING)

Airflow velocity

Temperature

26 Ceiling & Floor Type

Discharge angle 60°(FLOOR)

Airflow velocity

Temperature

Field Wiring

Ceiling & Floor Type 27

The Specification of Power

7. Electric Characteristics

Model

KV24CM-ARF21

KV36CM-ARF21

KV48CM-ARF21

Notes:

MFA: Max. Fuse Amps. (A)

8. Sound Levels

Hz

60

60

60

Indoor Unit

Voltage

220-240

Min

198

220-240

220-240

198

198

Max

254

254

254

Power Supply

MFA

15

15

15

Ceiling

Model

KV24CM-ARF21

KV36CM-ARF21

KV48CM-ARF21

H

45

45

47

Noise level dB(A)

M

43

43

46

Floor

L

40

40

44

28 Ceiling & Floor Type

9. Accessories

Name

1.Hook

Installation fittings

2.Hanging arm

3. Remote controller

Remote controller & Its holder

Others

4. Remote controller holder

5. Mounting screw (ST2.9×10-C-H)

6. Alkaline dry batteries (AM4)

7. Owner's manual

8. Installation manual

9. Remote controller manual

Shape

1

1

2

2

1

1

1

Field Wiring

Quantity

2

2

Ceiling & Floor Type 29

The Specification of Power

10. The Specification of Power

Type

Indoor unit Power

Outdoor unit Power

Phase

Frequency and Voltage

Power Wiring(mm 2 )

Circuit Breaker(A)

Phase

Frequency and Voltage

Power Wiring(mm 2 )

Circuit Breaker(A)

Indoor/outdoor connection wiring(Weak Electric Signal) (mm 2 )

Indoor/outdoor connection wiring(Strong Electric Signal) (mm 2 )

KV24CM-ARF21

KV36CM-ARF21

KV48CM-ARF21

1- Phase

220V~,60Hz

3X1.0

15

1- Phase

220V~,60Hz

3X3.3

40

3X0.5

30 Ceiling & Floor Type

11. Field Wiring

Wiring chart

Field Wiring

Ceiling & Floor Type 31

Outdoor Unit

Part 3

Outdoor Units

1.Dimensions

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

33

2.Service Space ...............................................................................

35

4.Wiring Diagrams ............................................................................

37

5.Electric Characteristics ................................................................

40

6.Operation Limits ............................................................................

41

7.Sound Levels .................................................................................

42

8.Troubleshooting

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

43

32 Outdoor Unit

Operation Limits

1.

Dimensions

Unit: mm

MODEL

KV24ODU-ARF21

KV36ODU-ARF21

A

842

990

B

560

624

C

335

366

D

360

396

E

312

340

F

324

354

H

695

966

Outdoor Units 33

Electric Characteristics

Unit: mm

MODEL

KV48ODU-ARF21

A

940

B

600

C

376

D

400

E

340

F

360

H

1245

34 Outdoor Units

2.

Service Space

(Wall or obstacle)

More than 30cm

Air inlet

Air inlet

Air outlet

More than 30cm

Maintain channel

More than 60cm

More than 200cm

More than 60cm

Operation Limits

Outdoor Units 35

Electric Characteristics

3.

Piping Diagrams

KV24ODU-ARF21, KV36ODU-ARF21

INDOOR

LIQUID SIDE

OUTDOOR

CAPILIARY TUBE

Electronic expansion valve

T3 Condenser temp. sensor

HEAT

EXCHANGE

(EVAPORATOR)

T1 Room temp. sensor

T4 Ambient temp. sensor

HEAT

EXCHANGE

(CONDENSER)

T2 Evaporator temp. sensor

GAS SIDE

Accumulator

T5 Discharge temp. sensor

COMPRESSOR

Notes: KV24ODU-ARF21(220075301740) & KV36ODU-ARF21(220075502120) have no EXV.

KV48ODU-ARF21

INDOOR OUTDOOR

LIQUID SIDE

CAPILIARY TUBE

Electronic expansion valve

T3 Condenser temp. sensor

HEAT

EXCHANGE

(EVAPORATOR)

T1 Room temp. sensor

T4 Ambient temp. sensor

HEAT

EXCHANGE

(CONDENSER)

T2 Evaporator temp. sensor

GAS SIDE

36

T5 Discharge temp. sensor

Oil separator

COMPRESSOR

Oil return Capillary

Outdoor Units

4.

Wiring Diagrams

KV24ODU-ARF21(220075301510)

KV24ODU-ARF21(220075301740)

Operation Limits

Outdoor Units 37

Electric Characteristics

KV36ODU-ARF21(220075501730)

KV36ODU-ARF21(220075502120)

38 Outdoor Units

KV48ODU-ARF21

Operation Limits

Outdoor Units 39

Electric Characteristics

5.

Electric Characteristics

Model

KV24ODU-ARF21

KV36ODU-ARF21

KV48ODU-ARF21

Hz

60

60

60

Outdoor Unit

Voltage

220-240

220-240

220-240

Min.

198

198

198

Max.

254

254

254

40 Outdoor Units

Operation Limits

6.

Operation Limits

Temperature

Mode

Room temperature

Outdoor temperature

Cooling operation

≥ 17 ℃

0

℃~

50

-15 ℃

50 ℃

For the models with low temperature cooling system

CAUTION:

1. If the air conditioner is used beyond the above conditions, certain safety protection features may come into operation and cause the unit to operate abnormally.

2. The room relative humidity should be less than 80%. If the air conditioner operates beyond this figure, the surface of the air conditioner may attract condensation. Please set the vertical air flow louver to its maximum angle (vertically to the floor), and set HIGH fan mode.

3. The optimum performance will be achieved during this operating temperature zone.

Outdoor Units 41

Electric Characteristics

7.

Sound Levels

Outdoor Unit

Microphone

H

Model

KV24ODU-ARF21

KV36ODU-ARF21

KV48ODU-ARF21

1.0m

Note: H= 0.5 × height of outdoor unit

Noise level dB(A)

54

55

60

42 Outdoor Units

8. Troubleshooting

9.1 Indoor unit malfunction

9.1.1 Display board

Normal 4-way cassette

Ceiling & Floor

Operation Limits

Outdoor Units 43

Electric Characteristics

5

6

7

9.1.2 Troubleshooting

NO.

1

2

3

4

Malfunction

Running lamp

Timer lamp

Communication malfunction between indoor and outdoor units.

Open or short circuit of T1 temperature sensor

Open or short circuit of T2 temperature sensor

Open or short circuit of T2B temperature sensor

Full-water malfunction

EEPROM malfunction

Outdoor unit malfunction

X

X

X

X

X

X

X

X

X X

X(off)

(flash at 5Hz) ◎ (flash at 0.5Hz)

Defrosting lamp

X

X

X

X

X

X

1. Running lamp flashes

Alarm lamp

X

X

X

X

X

Display(nixie tube)

E1

E2

E3

E4

EE

E7

Ed

Judge 1: Indoor temp. sensor is abnormal

Running lamp flashes at 5Hz

Judge 1: Indoor temp. sensor is abnormal

Running lamp flashes at 5Hz

Check whether the resistance of the evaporator temp. sensor is correct according to Annex 1

No

Yes

Judge 2: Room temp. sensor is abnormal

Check whether the resistance of the room temp. sensor is correct according to Annex 1

Yes

Replace indoor PCB

No

Replace room temp. sensor

44 Outdoor Units

Operation Limits

2. Timer lamp flashes

Timer lamp flashes at 5Hz

Judge: Indoor/outdoor unit communication is abnormal

Refer to the outdoor unit LED display E2 malfunction in the following part

3. Alarm lamp slow-flash

Indoor alarm lamps flash at 1Hz

Condenser temp. sensor or outdoor unit is malfunction

Judge 1: Condenser temp. sensor is abnormal

Check whether the resistance of the condenser temp. sensor is correct according to Annex 1

No

Yes

Judge 2: Outdoor unit is abnormal

Replace condenser temp. sensor

Refer to the outdoor unit LED display E4

P1

P2 malfunction in the following part

Outdoor Units 45

Electric Characteristics

4. Alarm lamp quick-flash

Alarm lamp flashes at 5Hz

Judge: Water level switch is abnormal.

Check whether the water pump can work normally

Yes

Select the cooling mode to make water pump work for a few minutes, then check whether the system can run normally

No

Yes

Replace water pump

Trouble is solved

No

Check whether the water drain pipe is blocked

No

Replace indoor PCB

5. Defrost lamp flashes

Defrost lamp flashes

Yes Solve to make the water can flow fluently

Judge: Mode conflicts malfunction

Turn the indoor unit to heating mode or turn off the unit

46 Outdoor Units

Operation Limits

9.2 Outdoor unit malfunction

Display

E0

E2

Malfunction or Protection

EEPROM malfunction

Communication malfunction between indoor IC and outdoor IC

P0

P1

P2

P3

E3

E4

E5

E6

P4

P5

P6

P7

1. E0 malfunction

Communication malfunction in outdoor IC and DSP

Malfunction of outdoor temperature sensor

Voltage protection of compressor

PFC module protection (Only for 36K, 48K)

Top temperature protection of compressor

High pressure protection

Low pressure protection

Current protection of compressor

Discharge temperature protection of compressor

High temperature protection of condenser

Module protection

High temperature protection of evaporator

E0 display

EEPROM malfunction

Judge: Check whether the EEPROM is inserted well

Yes

Replace outdoor main board

No

Insert the EEPROM well

Outdoor Units 47

Electric Characteristics

2. E2 malfunction

E2 display

Communication malfunction between indoor IC and outdoor

IC

No

Judge 1: Check whether the indoor unit power is on

Yes

Judge 2: Check whether the signal wiring is shield cable or whether the shield cable is earthed

No

Turn on the indoor unit power

Adopt the shield cable/ let shield cable earthed

Yes

No

Judge 3: Check whether the signal wiring between the indoor and outdoor units is wrong polarity?

Yes

Connect the signal wiring correctly

Judge 4: Check whether the signal wiring between the indoor and outdoor units is broken?

Yes

No

Indoor or outdoor main board is broken. Replace the main board until the malfunction disappears.

Replace the broken wiring

48 Outdoor Units

Operation Limits

3. E3 malfunction (For 18K & 24K & 30K)

E3 display

Communication malfunction in outdoor IC and DSP

Check whether the indicator lights LED1 on the main board is flashing

Yes

Replace the outdoor main board

No

Check whether the connecting wiring between the IPM module and the CN4 on the main board is broken off

Yes

Insert the connecting wiring well over again

No

Disconnect the connecting wiring between the IPM module and the CN4 on the main board, use the multimeter to measure the voltage between the IPM module

CN1 port’s 3 and 4 pillar, check whether it is 5V, (the third pillar on the main board labels +5V)

Yes

Replace outdoor main board

No

Check whether the connecting wiring between the IPM module positive pole and the CN12 on the power board is broken off

Yes

Insert the connecting wiring well over again

No

Check whether the connecting wiring between the IPM module negative pole and the CN13 on the power board is broken off

Yes

No

Use the multimeter to measure whether the voltage between the CN12 and the CN13 on the power board is between +

277V~345

V

No

Yes

Replace the power board

Insert the connecting wiring well over again

Replace the IPM module

Outdoor Units 49

Electric Characteristics

4. E3 malfunction (For 36K & 48K & 60K)

E3 display

Communication malfunction in outdoor IC and DSP

Check whether the indicator lights LED1 or LED2 on the main control board are flashing

Yes

Replace PCB

No

Install the IC-U3 chip of the PCB over again, check whether the system can run normally

No

Check whether the output of the transformer to CN4 socket is well

No

Replace the transformer

Yes

Yes

Trouble is solved

Replace PCB

50 Outdoor Units

Operation Limits

5. E4 malfunction

E4 display

Judge 1: Outdoor condenser temp. sensor (T3) is malfunction

Check whether the wiring of the condenser temp. sensor is broken off

No

Check whether the resistance of condenser temp. sensor is wrong refer to the Annex 1

Yes

No

Yes

Connect the wiring well

Replace condenser temp. sensor

Judge 2: Outdoor ambient temp. sensor (T4) is malfunction

Check whether the wiring of the outdoor ambient temperature sensor (T4) is broken off

No

Yes

Connect the wiring well

Check whether the resistance of outdoor ambient temperature sensor

(T4) is wrong refer to the Annex 1

Yes

Replace outdoor ambient temperature sensor

(T4)

No

Replace PCB

Outdoor Units 51

Electric Characteristics

6. E5 malfunction

E5 display

Voltage protection of compressor

Check the voltage of outdoor unit power supply, whether the voltage between L(1) and N is about 172-265V

Yes

Replace the power board, then check whether the system can run normally

No

Replace outdoor main board

7. E6 malfunction (Only for 30K, 36K with 1 phase)

E6 display

No

Yes

Check the power supply

Trouble is solved

PFC module protection

Check whether the connecting line between main board and the PFC module is connected tightly

No

Connect it tightly, check normal or not

No

Yes

Check whether the voltage between P and N of IPM module is 380-390V

Yes

No

Replace the PFC module

52

Replace the outdoor main board

Outdoor Units

Operation Limits

8. P0 malfunction

P0 display

Top temperature protection of compressor

Judge 1: Whether compressor operates?

Yes

Judge 2: Whether refrigerant circulation volume is normal?

No

Method: Charge refrigerant

No

Whether the connection is good?

No

Yes

Reconnect and retest.

Whether protector is normal?

No

Yes

Check the outdoor main PCB. Is there some problem?

Yes

Replace the protector.

Replace the protector.

Whether abnormality is the same after gas charging?

No

Check refrigerant system (such as clogging of capillary etc.)

Outdoor Units 53

Electric Characteristics

9. P1 malfunction

P1 display

High pressure protection

Judge 1: Whether the wiring between the high pressure switch and main control board is connected well or correctly

No

Connect it well

Yes

Judge 2: Whether the high pressure switch is broken

Method: Short connect the high pressure switch socket, check whether the system can run normally

Yes

Replace high pressure switch

No

Check whether the refrigerant system is ok

Judge 3: Check whether the outdoor ambient temperature is too high

No

Yes

Judge 4: Check whether the outdoor unit is bad ventilation

No

Yes

Judge 5: Check whether the heat exchanger is dirty

Yes

Stop the unit

Make the outdoor unit ventilate well

Clean the heat exchanger

No

Judge 6: Check whether the refrigerant pipe is blocked

No

Replace outdoor main board

Yes

Let the refrigerant out, then use the high pressure nitrogen or refrigerant to blow pipe, vacuumize and charge the refrigerant again

54 Outdoor Units

Operation Limits

10. P2 malfunction

P2 display

Low pressure protection

Judge 1: The wiring between the low pressure switch and main control board is connected well or correctly

No

Yes

Judge 2: Whether the low pressure switch is broken

Connect it well

Method: Short connect the low pressure switch socket, check whether the system can run normally

Yes

Replace low pressure switch

No

Check whether the refrigerant system is ok

Judge 3: Check whether the outdoor ambient temperature is too low

No

Judge 4: The refrigerant of the system is leakage

Yes

Stop the unit

Yes

Leak hunting: Charge nitrogen or refrigerant to the system, if the leakage is serious, there will be distinct gas leakage “cici” sound; if the leakage is slight, use the suds (mixture of water and abluent is also ok if it can make bubble) or electronic leak detector.

Method: Connect the pressure gauge to the gauge joint of the system, check whether the pressure is lower than 0.14MPa

No

Judge 5: The refrigerant pipe is blocked

No

Replace outdoor main board

Yes Let the refrigerant out, then use the high pressure nitrogen or refrigerant to blow pipe, vacuumize and charge the refrigerant again

Outdoor Units 55

Electric Characteristics

11. P3 malfunction

P3 display

Current protection of compressor

Judge 1: Check whether the input current of the power supply wire is more than 20A (For 36K & 48K with 1 phase, it is 30A)

Yes

Check whether the refrigerant system is ok

Judge 2: Check whether the outdoor ambient temperature is too high

No

Yes

Judge 3: Check whether the outdoor unit is bad ventilation

Yes

Stop the unit

Make the outdoor unit ventilate well

No

Judge 4: Check whether the heat exchanger is dirty

No

Judge 5: The refrigerant pipe is blocked

Yes

Clean the heat exchanger

Yes

Let the refrigerant out, then use the high pressure nitrogen or refrigerant to blow pipe, vacuumize and charge the refrigerant again

No

Replace outdoor main board

56 Outdoor Units

Operation Limits

14. P6 malfunction (For single phase units)

P6 display

Module protection

Check whether the voltage range of P-N on

IPM module is normal? DC277-356V for

18K/24K/30KBtu/h; DC277-410V for

36K/48KBtu/h

No

Check whether the input power supply is correct? 220-240V, 1N, 60Hz

No

Regulate it to correct, then check whether the system can work normally?

Yes

Check whether the connecting line between main board and the IPM module is connected tightly

No

Connect it tightly, check ok or not?

Yes

Check whether the power supply line is connected correctly and tightly

No

No

Connect it correctly and tightly, check ok or not?

No

Yes No Yes

Check whether the connecting line of the compressor is connected correctly or tightly

Yes

No

Replace the IPM module, check whether the system can work normally?

Yes

No

Check whether the lines in Epart box are connected tightly

No

Connect it tightly, check ok or not?

Connect it well, check ok or not?

Yes

Check whether the single-phase bridge is normal? Use the multimeter to measure the resistance between each two terminals, check whether there is the condition that value of resistance is 0

Yes

No

Replace the singlephase bridge

No Trouble is solved

Replace the main board, check whether the system can work normally?

Yes

Trouble is solved

No

Check whether the connecting line of every reactor is normal? If the line is broken, the resistance of the two ports is ∞

No

Replace the connecting line

No

Replace the compressor, check whether the system can work normally?

Yes

Trouble is solved

Yes

Check whether the fuse on the power board is normal?

No

Replace with the same model fuse

Yes

Replace the power board

Outdoor Units 59

Electric Characteristics

15. P6 malfunction (For three phases units)

P6 display

Module protection

Check whether the voltage range of P-N on

IPM module is normal? DC 350-650V

No

Check whether the input power supply is correct? 380-415V, 3N, 60Hz

No

Regulate it to correct, then check whether the system can work normally?

Yes

Check whether the connecting line between main board and the IPM module is connected tightly

Connect it tightly, check ok or not?

Yes

Check whether the power supply line is connected correctly and tightly

No

No

Connect it correctly and tightly, check ok or not?

No

Yes No Yes

Check whether the lines in Epart box are connected tightly

Check whether the connecting line of the compressor is connected tightly

Connect it tightly, check ok or not?

Yes

No

Yes Check whether the three phase bridge is normal?

No

Replace the IPM module, check whether the system can work normally?

Yes

Trouble is solved Yes

No

Check whether the 3300µF/400V electrolytic capacitor is normal?

No

No

Connect it tightly, check ok or not?

Replace the three phase bridge

No

Replace this electrolytic capacitor

Replace the main board, check whether the system can work normally?

Yes

Trouble is solved

No

Replace the compressor , check whether the system can work normally?

Yes

Trouble is solved

16. P7 malfunction

60 Outdoor Units

Operation Limits

P7 display

High temperature protection of evaporator

Whether compressor operates?

Yes

Check whether the heat exchanger is dirty, the airoutlet is blocked and the indoor fan is normal?

Yes

No

Clean the heat exchanger and the air-outlet

Whether the connection is good?

No

Yes

Reconnect and retest.

Whether the temperature sensor is normal?

No

Yes

Whether the indoor

PCB is normal?

No

Replace the temperature sensor

Replace the indoor

PCB

Check whether the indoor fan is normal

No

Check refrigerant system (such as clogging of capillary etc.)

Outdoor Units 61

Electric Characteristics

Appendix ℃

K Ohm K Ohm K Ohm

-20

-19

115.266

108.146

20

21

12.6431

12.0561

60

61

2.35774

2.27249

46.5725

44.0000

41.5878

39.8239

37.1988

35.2024

33.3269

31.5635

29.9058

28.3459

26.8778

25.4954

24.1932

101.517

96.3423

89.5865

84.2190

79.3110

74.5360

70.1698

66.0898

62.2756

58.7079

56.3694

52.2438

49.3161

22.5662

21.8094

20.7184

19.6891

18.7177

17.8005

16.9341

16.1156

15.3418

14.6181

13.9180

13.2631

45

46

47

41

42

43

44

38

39

40

35

36

37

32

33

34

29

30

31

25

26

27

28

22

23

24

55

56

57

58

59

52

53

54

48

49

50

51

5

6

7

3

4

1

2

-2

-1

0

-5

-4

-3

-8

-7

-6

-11

-10

-9

-18

-17

-16

-15

-14

-13

-12

15

16

17

18

19

12

13

14

8

9

10

11

6.40021

6.13059

5.87359

5.62961

5.39689

5.17519

4.96392

4.76253

4.57050

4.38736

4.21263

4.04589

3.88673

11.5000

10.9731

10.4736

10.000

9.55074

9.12445

8.71983

8.33566

7.97078

7.62411

7.29464

6.98142

6.68355

3.73476

3.58962

3.45097

3.31847

3.19183

3.07075

2.95896

2.84421

2.73823

2.63682

2.53973

2.44677

85

86

87

81

82

83

84

78

79

80

75

76

77

72

73

74

69

70

71

65

66

67

68

62

63

64

95

96

97

98

99

92

93

94

88

89

90

91

1.38703

1.34105

1.29078

1.25423

1.21330

1.17393

1.13604

1.09958

1.06448

1.03069

0.99815

0.96681

0.93662

2.19073

2.11241

2.03732

1.96532

1.89627

1.83003

1.76647

1.70547

1.64691

1.59068

1.53668

1.48481

1.43498

0.90753

0.87950

0.85248

0.82643

0.80132

0.77709

0.75373

0.73119

0.70944

0.68844

0.66818

0.64862

118

119

120

121

122

123

124

112

113

114

115

116

117

105

106

107

108

109

110

111

100

101

102

103

104

132

133

134

135

136

137

138

139

125

126

127

128

129

130

131

0.44699

0.43482

0.42304

0.41164

0.40060

0.38991

0.37956

0.36954

0.35982

0.35042

0.3413

0.33246

0.32390

K Ohm

0.62973

0.61148

0.59386

0.57683

0.56038

0.54448

0.52912

0.51426

0.49989

0.48600

0.47256

0.45957

0.31559

0.30754

0.29974

0.29216

0.28482

0.27770

0.27078

0.26408

0.25757

0.25125

0.24512

0.23916

0.23338

0.22776

0.22231

62 Outdoor Units

Installation

Part 4

Installation

1.Precaution on Installation .............................................................

64

2.Vacuum Dry and Leakage Checking ............................................

65

3.Additional Refrigerant Charge ....................................................

67

4.Water Drainage ..............................................................................

68

5.Insulation Work ...........................................................................

71

6.Wiring

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

72

7.Test Operation ...............................................................................

73

Installation 63

Test Operation

2. Vacuum Dry and Leakage Checking

1) Vacuum Dry: use vacuum pump to change the moisture (liquid) into steam (gas) in the pipe and discharge it out of the pipe to make the pressure in the pipe near vacuum state, the boiling point of water falls relatively. When it falls under outdoor temperature, the moisture in the pipe will be vaporized.

Necessary vacuum degree

2) Vacuum dry procedure

There are two methods of vacuum dry due to different construction environment: common vacuum dry, special vacuum dry.

① . Common vacuum dry procedure

Vacuum dry (for the first time)---connect the all-purpose detector to the inlet of liquid pipe and gas pipe, and run the vacuum pump more than two hours (the vacuum pump should be below -755mmHg)

If the pump can’t achieve below -755mmHg after pumping 2 hours, moisture or leakage point will still exist in the pipe. At this time, it should be pumped 1 hour more.

If the pump can’t achieve -755mmHg after pumping 3 hours, please check if there are some leakage points.

Vacuum placement test: place 1 hour when it achieves -755mmHg, pass if the vacuum watch shows no rising. If it rises, it shows there’s moisture or leakage point.

Vacuuming from liquid pipe and gas pipe at the same time.

Sketch map of common vacuum dry procedure.

65

Water Drainage

② .

Special vacuum dry procedure

This vacuum dry method is used in the following conditions:

There’s moisture when flushing the refrigerant pipe.

Rainwater may enter into the pipe.

Vacuum dry for the first time ······ 2h pumping

③ . Vacuum destroy for the second time ······ Fill nitrogen to 0.5Kgf/cm 2

Because nitrogen is for drying gas, it has vacuum drying effect during vacuum destroy. But if the moisture is too much, this method can’t dry thoroughly. So, please pay more attention to prevent water entering and forming condensation water.

④ . Vacuum dry for the second time······1h pumping

⑤ . Vacuum placing test ······ 1h

⑥ . Sketch map of special vacuum dry procedure

66

Test Operation

3.

Additional Refrigerant Charge

Caution: a) Refrigerant cannot be charged until field wiring has been completed.

b) Refrigerant may only be charged after performing the leak test and the vacuum pumping.

c) When charging a system, care shall be taken that its maximum permissible charge is never exceeded, in view of the danger of liquid hammer.

d) Charging with an unsuitable substance may cause explosions and accidents, so always ensure that the appropriate refrigerant is charged.

e) Refrigerant containers shall be opened slowly. f) Always use protective gloves and protect your eyes when charging refrigerant.

The outdoor unit is factory charged with refrigerant. Calculate the added refrigerant according to the diameter and the length of the liquid side pipe of the outdoor unit/indoor unit.

R(g) D(mm)

φ

6.4

Φ

9.5

Φ

12.7

L(m)

Less than 5m (One-way) —

Added Refrigerant When

Over 5m(One-way)

11g/m×(L-5)

Remark:

R (g): Additional refrigerant to be charged

L (m): The length of the refrigerant pipe (one-way)

D (mm): Liquid side piping diameter

30g/m×(L-5)

60g/m×(L-5)

67

Water Drainage

4.

Water Drainage

4.1 Gradient and Supporting

1). Keep the drainpipe sloping downwards at a gradient of at least 1/50. Keep the drainpipe as short as possible and eliminate the air bubble.

2). The horizontal drainpipe should be short. When the pipe is too long, a prop stand must be installed to keep the gradient of 1/50 and prevent bending. Refer to the following table for the specification of the prop stand.

Material

Hard PVC pipe

Diameter

25~40mm

Distance between the prop stands

1.5~2m

3). Precautions

① The diameter of drainpipe should meet the drainage requirement at least.

② the drainpipe should be heat-insulated to prevent atomization.

③ Drainpipe should be installed before installing indoor unit. After powering on, there is some water in water-receiver plate. Please check if the drain pump can operate correctly.

④ All connection should be firm.

⑤ Wipe color on PVC pipe to note connection.

⑥ Climbing, horizontal and bending conditions are prohibited.

⑦ The dimension of drainpipe can’t less than the connecting dimension of indoor drainpipe.

⑧ Heat-insulation should be done well to prevent condensation.

⑨ Indoor units with different drainage type can’t share one convergent drainpipe.

4.2 Drainpipe Trap

1). If the pressure at the connection of the drainpipe is negative, it needs to design drainpipe trap.

2). Every indoor unit needs one drainpipe trap.

3). A plug should be designed to do cleaning.

4.3 Upwards drainage (drain pump)

For Four-way cassette(compact)

Plug

68

Test Operation

For Four-way cassette

4.4 Convergent drainage

1). The number of indoor units should be as small as possible to prevent the traverse main pipe overlong.

2). Indoor unit with drain pump and indoor unit without drain pump should be in different drainage system.

3). Selecting the diameter

Number of connecting indoor units → Calculate drainage volume → Select the diameter

Calculate allowed volume =Total cooling capacity of indoor units (HP)×2 (l/ hr)

Material

Hard PVC

Hard PVC

Hard PVC

Hard PVC

Hard PVC

Allowed volume(lean 1/50) (l/ hr)

≤ 14

14

<∽≤

88

88

<∽≤

334

175

<∽≤

334

334

<∽

I.D. (mm)

25

30

40

50

80

Thick

3.0

3.5

4.0

4.5

6.0

4.5 Drainage test

1). Drainage without drain pump

After finishing drainpipe installation, pour some water into the water receiver plate to check if the water flows smoothly.

2). Drainage with drain pump

① Poke the Water Level Switch, remove the cover, use water pipe to pour 2000ml water into the water receipt plate through the water inlet.

② Turn on the power to Cooling operation. Check the pump’s operation and switch on the Water Level Switch. Check the pump’s sound and look into the transparent hard pipe in the outlet at the same time to check if the water can discharge normally.

69

Water Drainage

③ Stop the air conditioner running, turn off the power, and put back the cover.

Stop the air conditioner. After 3 minutes, check if it has abnormity. If the collocation of drainpipes is illogical, the water will flow back overfull, which will cause the alarm lamp flashes, even overflow from the water receipt plate.

Keep on pouring water until it gives an alarm signal for high water level, check if the pump drains water at once. If the water level can’t fall below the alarmed water level after 3 minutes, the air conditioner will stop. Turn off the power and drain the remained water, and then turn on the air conditioner.

Note: the drain stuff in the main water receipt plate is for maintenance. Stuff up the drain stuff to prevent water leakage.

70

Test Operation

5.

Insulation Work

5.1 Insulation material and thickness

1). Insulation material

Insulation material should adopt the material which is able to endure the pipe’s temperature: no less than 70 ℃ in the high-pressure side, no

2). Thickness choice for insulation material

Insulation material thickness is as follows:

Refrigerant pipe

Drainage pipe

Pipe diameter (mm)

Φ 6.4— Φ 25.4

Φ 28.6— Φ 38.1

Inner diameter Φ 20— Φ 32

Adiabatic material thickness

10mm

15mm

6mm

5.2 Refrigerant pipe insulation

1). Work Procedure

① Before laying the pipes, the non-jointing parts and non-connection parts should be heat insulated.

② When the gas proof test is eligible, the jointing area, expanding area and the flange area should be heat insulated

2). Insulation for non-jointing parts and non-connection parts wrong right

Gas pipe and liquid pipe should not be put together to insulate

Insulate the gas pipe

(cooling only)

Insulate the gas pipe and liquid pipe

71

Wiring

For construction convenience, before laying pipes, use insulation material to insulate the pipes to be deal with, at the same time, at two ends of the pipe, remain some length not to be insulated, in order to be welded and check the leakage after laying the pipes.

3). Insulate for the jointing area, expanding area and the flange area

① Insulate for the jointing area, expanding area and the flange area should be done after checking leakage of the pipes

② Make sure there’s no clearance in the joining part of the accessorial insulation material and local preparative insulation material.

5.3 Drainage pipe insulation

1) The connection part should be insulated, or else water will be condensing at the non-insulation part.

5.4 Note

1) The jointing area, expanding area and the flange area should be heat insulated after passing the pressure test

2) The gas and liquid pipe should be heat insulated individually, the connecting part should be heat insulated individually.

3) Use the attached heat-insulation material to insulate the pipe connections (pipes’ tie-in ,expand nut ) of the indoor unit.

6. Wiring

Please refer to the Wiring Diagram.

72

Test Operation

7.

Test Operation

(1) The test operation must be carried out after the entire installation has been completed.

(2) Please confirm the following points before the test operation.

The indoor unit and outdoor unit are installed properly.

Tubing and wiring are correctly completed.

The refrigerant pipe system is leakage-checked.

The drainage is unimpeded.

The ground wiring is connected correctly.

The length of the tubing and the added stow capacity of the refrigerant have been recorded.

The power voltage fits the rated voltage of the air conditioner.

There is no obstacle at the outlet and inlet of the outdoor and indoor units.

The gas-side and liquid-side stop values are both opened.

The air conditioner is pre-heated by turning on the power.

(3) According to the user's requirement, install the remote controller when the remote controller's signal can reach the indoor unit smoothly.

(4) Test operation

Set the air conditioner under the mode of "COOLING" with the remote controller, and check the following points.

Indoor unit

Whether the switch on the remote controller works well.

Whether the buttons on the remote controller works well.

Whether the air flow louver moves normally.

Whether the room temperature is adjusted well.

Whether the indicator lights normally.

Whether the temporary buttons works well.

Whether the drainage is normal.

Whether there is vibration or abnormal noise during operation.

Outdoor unit

Whether there is vibration or abnormal noise during operation.

Whether the generated wind, noise, or condensed of by the air conditioner have influenced your neighborhood.

Whether any of the refrigerant is leaked.

73

Control

Part 5

Control

1.Wireless Remote Controller .........................................................

75

74 Control

1. Wireless Remote Controller

1.1 RG51Q1/BG(C)E

Adjust 2

Mode setting 3

Vert Swing

4

Horiz Swing

5

AIR DIRECTION 6

SET TEMPERATURE( C)

AUTO

COOL

DRY

HEAT

FAN

HIGH

MED

LOW

MODE

SWING

SWING

AIR

DIRECTION

ADJUST

ON/OFF

FAN SPEED

ECO

1

7

Adjust

ON/OFF

8 Fan speed setting

TIMER ON

TIMER OFF

9

10

TIMER ON

Economic operation

11

12

13

TIMER OFF

Lock

Reset

General Function for wireless remote controller:

Model and Specification

Model

Rated voltage

Min voltage for sending signal of CPU

Effective receiving distance

Operation condition

RG51Q1/BG(C)E

3.0V(Dry batteries R03/LR03×2)

2.0V

8m(when using 3.0 voltage, it Gets 11m)

-5~60

75

Buttons and functions

1. Adjust : Decrease the set temp. Keeping pressing will decrease the temp with 1 ℃ per 0.5s.

3. MODE: Once pressing, running mode will be selected in the following sequence:

℃ per 0.5s.

AUTO COOL DRY HEAT FAN

NOTE: No heating mode for cool only type unit.

4. VERT SWING: Used to stop or start horizontal louver movement or set the desired up/down air flow direction. The louver changes 6 degree in angle for each press. If keep pushing more than 2 seconds, the louver will swing up and down automatically.

5. HORIZ SWING: Used to stop or start vertical louver movement.

6. AIR DIRECTION: Used to set the desired up/down air flow direction. The louver changes 6 degree in angle for each press.

7. ON/OFF: For turning on or turning off the air conditioner.

8. FAN SPEED: Fan speed will be selected in following sequence once pressing this button:

AUTO LOW MED HIGH

9. TIME ON: For time ON setting. Once pressing this button, the time will increase by 0.5 hour. When the set time exceeds 10 hours, pressing the button will increase the time by 1 hour. Adjusting the figure to 0.00 will cancel time ON setting.

10. ECO: Activate or turn off economic operation mode. It is suggested to turn on this function when sleeping. (Only available when remote controller is used with corresponding unit.)

11. TIME OFF: For time OFF setting. Once pressing this button, the time will increase by 0.5 hour. When the set time exceeds 10 hours, pressing the button will increase the time by 1 hour.

Adjust the figure to 0.00 will cancel time ON setting.

12. C/H (inner located): Press this button with a needle of 1mm to shift the mode between Cooling only and

Cooling & Heating according to the feature of the machine.

13.RESET (inner located): Press this button with a needle of 1mm to cancel the current setting and reset remote controller

76

77

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Key Features

  • High energy efficiency with A-class EER and COP ratings
  • DC inverter technology for precise temperature control and low noise operation
  • Intelligent refrigerant adjustment technology for optimal cooling performance
  • Wide operating range for cooling in temperatures as low as -15℃
  • Built-in drainage pump to handle condensate water effectively
  • 4-way airflow for even distribution of conditioned air
  • Optional super high fan speed for large spaces

Related manuals

Frequently Answers and Questions

What is the maximum piping length for the unit?
The maximum piping length is 50 meters.
Can the unit operate in heating mode?
No, the unit is designed for cooling only.
Does the unit have a built-in air purifier?
No, the unit does not have an air purifier.
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