Four-way Cassette Type

DC INVERTER SERIES

Service Manual 2012

LIS-B-1201

Contents

Part 1 General Information .......................................................................... 1

Part 2 Indoor Units ....................................................................................... 6

Part 3 Outdoor Units .................................................................................. 82

Part 4 Installation ...................................................................................... 120

Part 5 Control ............................................................................................ 131

※The specifications, designs, and information in this book are subject to change without notice for product improvement.

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

General Information 1

Model Lists

1. Model Lists

1.1 Indoor Units

R410A Capacity multiplied by 1000Btu/h

Type Function 12 18 24 30 36 48 60

New Four-way cassette

(compact)

Four-way cassette

Ceiling & floor

Duct

Console

High static pressure duct

Cooling and heating

Cooling and heating

Cooling and heating

Cooling and heating

Cooling and heating

Cooling and heating

● ●

● ● ● ●

● ● ● ● ● ● ●

● ● ● ● ● ● ●

● ●

● ● ●

1.2 Outdoor Units

Universal Outdoor unit Model Compressor type Compressor Brand Matched indoor units

MOU-12HDN1-Q

MOU-18HDN1-Q

MOU-24HDN1-Q

MOU-30HDN1-Q

Rotary DC Inverter GMCC

Scroll DC Inverter GMCC

Rotary DC Inverter GMCC

Rotary DC Inverter MITSUBISHI

MCA2-12HRDN1-Q

MFA-12HRDN1-Q

MUB-12HRDN1-Q

MTB1-12HWDN1-Q

MCA2-18HRDN1-Q

MFA-18HRDN1-Q

MUB-18HRDN1-Q

MTB-18HWDN1-Q

MCC-24HRDN1-Q

MUB-24HRDN1-Q

MTB-24HWDN1-Q

MCC-30HRDN1-Q

MUB-30HRDN1-Q

MTB-30HWDN1-Q

MOU-36HDN1-Q

MOU-36HDN1-Q

Rotary DC Inverter MITSUBISHI

Rotary DC Inverter

GUANGZHOU

MITSUBISHI

MCC-36HRDN1-Q

MUB-36HRDN1-Q

MTB-36HWDN1-Q

MHD-36HRDN1-Q

MOU-36HDN1-R

MOU-48HDN1-Q

MOU-48HDN1-R

MOU-60HDN1-R

Rotary DC Inverter

Rotary DC Inverter

Rotary DC Inverter

Rotary DC Inverter

GUANGZHOU

MITSUBISHI

GUANGZHOU

MITSUBISHI

GUANGZHOU

MITSUBISHI

GUANGZHOU

MITSUBISHI

MCC-36HRDN1-Q

MUB-36HRDN1-Q

MTB-36HWDN1-Q

MHD-36HRDN1-Q

MCC-48HRDN1-Q

MUB-48HRDN1-Q

MTB-48HWDN1-Q

MHD-48HRDN1-Q

MCC-48HRDN1-Q

MUB-48HRDN1-Q

MTB-48HWDN1-Q

MHD-48HRDN1-Q

MCC-60HRDN1-R

MUB-60HRDN1-R

MTB-60HWDN1-R

MHD-60HRDN1-R

2

General Information

2. External Appearance

2.1 Indoor Units

Duct

Four-way Cassette

External Appearance

Ceiling & Floor

Compact Four-way cassette

Console

High static pressure duct

2.2 Outdoor Units

Single fan outdoor unit

General Information

Double fan outdoor unit

3

4

Nomenclature

3. Nomenclature

3.1 Indoor Unit

M U B T- 36 H R D N1- R

3.2 Outdoor Unit

M O U T- 36 H D N1- R

Power Supply

Q 220~240V,1N, 50Hz

R 380~420V, 3N, 50Hz

N 220~230V, 1N, 60Hz

D 220V~, 3N, 60Hz

C 380~420V,3N,60Hz

Refrigerant

N1 R410A -- R22

D DC Inverter -- On-Off

F Full DC

Control Mode

W Wired Control E Electric Control

M Mechanical Control R Remote Control

Function Code

C Cooling Only H Cooling & Heating

A Cooling & Heating+PTC

Capacity (

× 1000Btu/h)

T Tropical Condition

-- T1 Condition

Designed Time

A Time A Designed B Time B Designed

C Time C Designed D Time D Designed

Product Category

C Cassette Type V AHU Type

T Duct Type F Console Type

U Ceiling & Floor Type

H High Static Pressure Duct Type

Midea

Power Supply

Q 220~240V,1N, 50HZ

R 380~420V, 3N, 50Hz

N 220~230V, 1N, 60Hz

D 220V~, 3N, 60Hz

C 380~420v,3N,60HZ

Refrigerant

N1 R410A -- R22

D DC Inverter -- On-Off

F Full DC

Function Code

C Cooling Only H Cooling & Heating

A Cooling & Heating+PTC

Capacity (

× 1000Btu/h)

T Tropical Condition

-- T1 Condition

U Side Discharge Outdoor Unit

V Top Discharge Outdoor Unit

S Centrifugal Fan Outdoor Unit

O Outdoor unit

Midea

General Information

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 Full range of products from 12K to 60K, including Med duct(A5), cassette, console, ceiling and floor, more choice for you

4.4 Low ambient kit is standard for outdoor units (except 12K)

4.5 Network control function is standard for the indoor units (except 12K)

4.6 Standard auto restart function and follow me function

4.7 Cassette, ceiling & floor, console and compact cassette with standard remote controller, wire controller and CCM for optional. Med Duct with standard wired controller, remote controller and CCM for optional.

4.8 Standard anti-cold air function

4.9 Standard auto defrosting function

4.10 Standard self-diagnose function.

4.11 Standard timer function and sleep mode function controlled by controller.

General Information 5

Indoor Units

Part 2

Indoor Units

New Four-way Cassette Type (Compact) ........................................ 7

Four-way Cassette Type ................................................................ 18

Duct Type ........................................................................................ 27

Ceiling & Floor Type ....................................................................... 43

Console Type .................................................................................. 57

High Static Pressure Duct .............................................................. 71

6

Indoor Units

New Four-way Cassette Type

New Four-way Cassette Type (Compact)

1. Features ........................................................................................................... 8

2. Dimensions .................................................................................................... 10

3. Service Space ................................................................................................ 11

4. Wiring Diagrams ............................................................................................ 12

5. Air Velocity and Temperature Distributions ............................................... 13

6. Electric Characteristics ................................................................................ 14

7. Sound Levels ................................................................................................. 14

8. Accessories ................................................................................................... 15

9. The Specification of Power .......................................................................... 15

10. Field Wiring .................................................................................................. 16

New Four-way Cassette 7

Features

1. Features

1.1 New panel

Ø 360 °surrounding air outlet design, affords comfortable feeling

1.2 Compact design

Ø The body size is 570 ×260×570mm, it’s just smaller than the ceiling board, so it’s very easy for installation and will not damage the decoration. The panel size is 647

×50×647mm.

Ø The hooks are designed in the four corners of the body, which can save installation space.

1.3 Electric control box built-in design

Ø The E-box is simply and safely built inside the indoor unit. It ’s convenient for installation and maintenance. Can check the control part easily, you only need to open the air return grille.

1.4 Fresh air intake function:

Ø Fresh air fulfills air quality more healthy and comfortable.

8 New Four-way Cassette (Compact)

Features

Fresh

Air

Dimension:

Φ75mm

1.5 Air passage function

Ø Reserves the space for air outlet from the side of indoor unit; It ’s availed to connect air duct from the two sides to the nearby small rooms.

New Four-way Cassette (Compact) 9

Dimensions

2. Dimensions

10 New Four-way Cassette (Compact)

3. Service Space

Service Space

New Four-way Cassette (Compact) 11

Wiring Diagrams

4. Wiring Diagrams

MCA2-12HRDN1-Q

MCA2-18HRDN1-Q

12 New Four-way Cassette (Compact)

5. Air Velocity and Temperature Distributions

Airflow velocity

Air Velocity and Temperature Distributions

Temperature

New Four-way Cassette (Compact) 13

Electric Characteristics

6. Electric Characteristics

Model

MCA2-12HRDN1-Q

MCA2-18HRDN1-Q

Notes:

MFA: Max. Fuse Amps. (A)

7. Sound Levels

FOUR-WAY CASSETTE TYPE

Hz

Indoor Units

MFA Min. Max.

Power

Supply

MFA

50 220-240V 198V 254V 20

50 220-240V 198V 254V 15

H

42

42

1.0m

Microphone

Noise level dB(A)

M

41

41

L

38

38

Model

MCA2-12HRDN1-Q

MCA2-18HRDN1-Q

14 New Four-way Cassette (Compact)

8. Accessories

Installation fittings

Drainpipe Fittings

Name

1. Expansible hook

2. Installation hook

3. Installation paper board

4. Out-let pipe sheath

5. Out-let pipe clasp

6. Tightening band

7. Drain joint

8. Remote controller

Remote controller & Its holder

9. Remote controller holder

10. Mounting screw(ST2.9

×10-C-H)

11. Alkaline dry batteries (AM4)

12. Owner's manual

Others

13. Installation manual

9. The Specification of Power

Model

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 Connecting Wiring

(Weak Electric Signal) (mm

2

)

Indoor/Outdoor Connecting Wiring

(Strong Electric Signal) (mm

2

)

12000Btu/h

1-phase

220-240V, 50Hz

3

×2.5

20

4

×2.5

Shape

18000 Btu/h

1-phase

220-240V, 50Hz

3

×1.0

15

1-phase

220-240V, 50Hz

3

×2.5

30

3

×0.5

Accessories

Quantity

4

4

1

1

1

20

1

1

1

2

2

1

1

New Four-way Cassette (Compact) 15

Field Wiring

10. Field Wiring

MCA2-12HRDN1-Q

MCA2-18HRDN1-Q

16 New Four-way Cassette (Compact)

MCA2-12HRDN1-Q

MCA2-18HRDN1-Q

Field Wiring

New Four-way Cassette (Compact) 17

Features

Four-way Cassette Type

1. Features ......................................................................................................... 22

2. Dimensions .................................................................................................... 25

3. Service Space ................................................................................................ 26

4. Wiring Diagrams ............................................................................................ 27

5. Air Velocity and Temperature Distributions ............................................... 22

6. Electric Characteristics ................................................................................ 23

7. Sound Levels ................................................................................................. 23

8. Accessories ................................................................................................... 24

9. The Specification of Power .......................................................................... 25

10. Field Wiring .................................................................................................. 26

18 Indoor Unit

Features

1. Features

1.1 New panel (60k standard)

Ø New panel with 360 ° airflow supply

Ø Air intake grille lift function for supper thin cassette, convenient for maintenance.

1.2 3D screw fan technology

Ø 3D screw indoor fan technology reduces the air resistance, increases the air volume and improves the heat exchange efficiency. Operate quietly.

22 Four-way Cassette Type

1.3 Fresh air intake function

Ø Fresh air fulfills air quality more healthy and comfortable.

Features

Fresh

Air

Dimension:

Φ75mm

1.4 Air passage function

Ø Reserves the space for air outlet from the side of indoor unit; It ’s availed to connect air duct from side to nearby small rooms.

For duct connecting

Four-way Cassette Type 23

Features

1.5 Drainage pump

Ø Build-in water pump which pumping head is 750mm upmost. It ’s convenient to install drainage piping under most space condition.

1.6 LED display

Ø Digital LED interface, makes the unit more elegant.

Ø Normally display the setting temperature

Ø LED can display the Error Code to make the malfunction checking easier.

24 Four-way Cassette Type

2.

Dimensions

Dimensions

Unit: mm

MODEL(Btu/h)

24000

30000

36000

48000

60000

A

230

300

300

300

300

B

Ф15.9

Ф15.9

Ф15.9

Ф15.9

Ф15.9

C

Ф9.5

Ф9.5

Ф9.5

Ф9.5

Ф9.5

H

>260

>330

>330

>330

>330

Four-way Cassette Type 25

Service Space

3.

Service Space

>1000mm

Chart 3

>1000mm

26 Four-way Cassette Type

4.

Wiring Diagrams

MCC-24HRDN1-Q

MCC-30HRDN1-Q

Four-way Cassette Type

Wiring Diagrams

27

MCC-36HRDN1-Q MCC-48HRDN1-Q MCC-60HRDN1-R

Wiring Diagrams

Four-way Cassette Type 21

Air Velocity and Temperature Distributions

5.

Air Velocity and Temperature Distributions

Airflow velocity

High pressure switch

Condenser

Condenser temp. sensor

Electronic expansion valve

T3

Filter

Capillary

Filter

T5

Discharge temp. sensor

Oil separator

Filter

Oil return

Capillary

T4

Ambient temp. sensor

4-way valve

Filter

Low pressure

Low pressure liquid accumulator switch

Outdoor unit

Evaporator

Evaporator temp. sensor

T2

T1

Room temp. sensor

Indoor unit

22 Four-way Cassette Type

6.

Electric Characteristics

Model

MCC-24HRDN1-Q

MCC-30HRDN1-Q

MCC-36HRDN1-Q

MCC-48HRDN1-Q

MCC-60HRDN1-R 50

Notes:

MFA: Max. Fuse Amps. (A)

7.

Sound Levels

Hz

50

50

50

50

Indoor Unit

Voltage

220-240

220-240

220-240

220-240

220-240

Min Max

198 254

198

198

254

254

198

198

254

254

Electric Characteristics

Power

Supply

MFA

15

15

15

15

15

Model

MCC-24HRDN1-Q

MCC-30HRDN1-Q

MCC-36HRDN1-Q

MCC-48HRDN1-Q

MCC-60HRDN1-R

H

42

44

44

44

47

Noise level dB(A)

M

41

42

42

42.5

44

L

39

41

41

41

43

Four-way Cassette Type 23

Accessories

8.

Accessories

INSTALLATION FITTINGS

Name

Installation paper board

Tubing & Fittings

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

24

Shape Quantity

1

2

1

1

1

1

1

1

1

4

4

1

2

2

1

1

Four-way Cassette Type

9.

The Specification of Power

Model

Phase

INDOOR UNIT POWER

Frequency and Voltage

POWER WIRING (mm

2

)

CIRCUIT BREAKER (A)

Phase

OUTDOOR UNIT POWER

Frequency and Voltage

POWER WIRING (mm

2

)

CIRCUIT BREAKER (A)

Indoor/Outdoor Connecting Wiring

(Weak Electric Signal) (mm

2

)

Indoor/Outdoor Connecting Wiring

2

(Strong Electric Signal) (mm )

The Specification of Power

18000-30000Btu/h 36000-60000 Btu/h 30000-60000 Btu/h

1-phase 1-phase 1-phase

220-240V, 50Hz

3

×1.0

220-240V, 50Hz

3

×1.0

220-240V, 50Hz

3

×1.0

15

1-phase

220-240V, 50Hz

3

×2.5

30

15

1-phase

220-240V, 50Hz

3

×4.0

40

15

3-phase

380-420V, 50Hz

5

×2.5

30

3

×0.5

3

×0.5

3

×0.5

Four-way Cassette Type 25

Field Wiring

10.

Field Wiring

Wiring chart

26 Four-way Cassette Type

Duct Type

Duct Type

1. Features ......................................................................................................... 28

2. Dimensions .................................................................................................... 31

3. Service Space ................................................................................................ 32

4. Wiring Diagrams ............................................................................................ 33

5. Static Pressure .............................................................................................. 35

6. Electric Characteristics ................................................................................ 37

7. Sound Levels ................................................................................................. 38

8. Accessories ................................................................................................... 39

9. The Specification of Power .......................................................................... 40

10. Field Wiring .................................................................................................. 41

Duct Type 27

Features

1. Features

1.1 Installation accessories: (Optional)

Ø Front Board, Canvas Air Passage, Filter, Panel, for easy installation

Front Board

Canvas Air Passage Filter Panel

1.2 Easy Installation: Two air inlet styles (Bottom side or Rear side)

Ø Air inlet from rear is standard for all capacity; air inlet from bottom is optional.

Ø The size of air inlet frame from rear and bottom is same, it ’s very easy to move the cover from bottom to rear side, or from rear to the bottom, in order to matching the installation condition.

Air intake from rear (Standard) Air intake from bottom (Optional)

1.3 Fresh air intake function

Ø Install one duct from the reserved fresh-air intake to outdoor.

Continually inhale the fresh air to improve the quality of the indoor air, fulfills air quality more healthy and comfortable.

1.4 Easy maintenance

Ø Clean the filter (Optional, standard product without filter)

It is easy to draw out the filter from the indoor unit for cleaning, even the filter is installed in rear side or bottom side.

28 Duct Type

Features

Ø Replace the motor or centrifugal fan

Remove the ventilated panel firstly. Remove a half of blower housing and take out the motor with centrifugal fan. Directly remove two bolts, and then replace the motor or centrifugal fan easily.

Motor

Blower Housing

Ventilated Panel

1.5 Reserved remote on-off and central control ports

Ø Reserved remote on-off ports and central control ports, can connect the cable of an on-off controller or a central controller to realize remote on-off control function or group control function.

Remote on-off ports Central control ports

1.6 Built-in drain pump (Optional):

Ø Built-in drain pump can lift the water to 750mm upmost. It ’s convenient to install drainage piping under most space condition.

Duct Type 29

Features

30

1.7 Built-in display board

Ø The standard indoor unit can be controlled by wired controller.

Ø There is a display board with a receiver in the E-box. Move out the display, and fix it in other place, even in the distance of 10m. The unit will realized remoter control.

Ø The wired controller and the display board can display the error code or production code when the chips detect some failure.

Wired Controller (Standard)

Remote Controller (Optional)

Display

Duct Type

2. Dimensions

E F

A

D

C

Dimensions

L

Capacity

Outline dimension(mm) Air outlet opening size Air return opening size

(KBtu)

A B C D E F G H I J K

12

18

700 210 635 570 65 493 35 119 595 200

920 210 635 570 65 713 35 119 815 200

24 920 270 635 570 65 713 35 179 815 260

30/36 1140 270 775 710 65 933 35 179 1035 260

48/60 1200 300 865 800 80 968 40 204 1094 288

80

80

20

20

45

Size of outline dimension mounted plug

L M

740

960

960

1180

1240

350

350

350

490

500

Duct Type 31

Service Space

3. Service Space

Ensure enough space required for installation and maintenance.

32

All the indoor units reserve the hole to joint the fresh air pipe. The hole size as following:

Duct Type

4. Wiring Diagrams

MTB1-12HWDN1-Q

Wiring Diagrams

MTB-18HWDN1-Q 、MTB-24HWDN1-Q、MTB-30HWDN1-Q

Duct Type 33

Wiring Diagrams

MTB-36HWDN1-Q MTB-48HWDN1-Q MTB-60HWDN1-R

34 Duct Type

70

60

50

20

10

40

30

Pa

90

80

40

30

20

10

0

60

50

80

70

Pa

90

5. Static Pressure

12,000Btu/h 18,000Btu/h

Super high speed

High speed

Mid speed

Low speed

40

30

20

10

70

60

50

Pa

90

80

Mid speed

Low speed

300 400 500 600 700 800

Air volume(m

3

/h)

900

High speed

Static Pressure

Super high speed

200

300 400 500 600 700 800 900 1000 1100

Air volume(m /h)

1200

24,000Btu/h 36,000Btu/h

36K

Pa

Super high speed

High speed

Mid speed

Low speed

70

60

50

40

30

20

10

90

80

Super high speed

High speed

Mid speed

Low speed

700

800 900 1000 1100

Air volume(m /h)

1200 1300 1400 1500

1100 1200 1400 1600 1800 2000

Air volume(m /h)

2200 2400

Duct Type 35

Static Pressure

Pa

120

110

100

30

20

50

40

10

70

60

90

80

48,000Btu/h 60,000Btu/h

48K

Pa

120

Super high speed

High speed

Mid speed

Low speed

110

100

90

80

70

60

50

40

30

20

10

Super high speed

High speed

Mid speed

Low speed

1000 1300 1600 1900 2200

Air volume(m

3

/h)

2500 2800 3100

1000 1300 1600 1900

2200 2500

Air volume(m /h)

2800

3100 3400

36 Duct Type

6. Electric Characteristics

Model

MTB1-12HWDN1-Q

MTB-18HWDN1-Q

MTB-24HWDN1-Q

MTB-30HWDN1-Q

MTB-36HWDN1-Q

MTB-48HWDN1-Q

50

50

MTB-60HWDN1-R

Notes:

MFA: Max. Fuse Amps. (A)

50

Hz

50

50

50

50

Electric Characteristics

Indoor Unit

Voltage Min.

220-240

220-240

220-240

220-240

198

198

198

198

220-240

220-240

220-240

198

198

198

Max.

254

254

254

254

254

254

254

Power Supply

MFA

15

15

15

15

15

15

15

Duct Type 37

Sound Levels

7. Sound Levels

Concealed Duct Type

Discharge

Duct

Suction

Duct

Model

MTB1-12HWDN1-Q

MTB-18HWDN1-Q

MTB-24HWDN1-Q

MTB-30HWDN1-Q

MTB-36HWDN1-Q

MTB-48HWDN1-Q

MTB-60HWDN1-R

1.4m

46

46

47

47

H

37

44

45

Microphone

Noise level dB(A)

M

30

36

43

44

44

41

45

42

42

37

43

L

26

33

41

38 Duct Type

8.

Accessories

Tubing & Fittings

Drainpipe Fittings

(for cooling & heating)

Wired controller & Its Frame

Others

EMS & It

’s fitting

Name

Soundproof / insulation sheath

Binding tape

Seal sponge

Drain joint

Seal ring

Wired controller

Owner

, s manual

Installation manual

Magnetic ring (twist the electric wires L and N around it to five circles)

Accessories

Shape Quantity

2

1

1

1

1

1

1

1

1

Duct Type 39

The Specification of Power

9. The Specification of Power

Model 12000Btu/h 18000-30000Btu/h

36000-60000

Btu/h

1-phase

30000-60000

Btu/h

1-phase

INDOOR UNIT

POWER

Phase

Frequency and

Voltage

POWER WIRING

(mm

2

)

CIRCUIT BREAKER

(A)

Phase

OUTDOOR UNIT

POWER

Frequency and

Voltage

POWER WIRING

(mm

2

)

CIRCUIT BREAKER

(A)

Indoor/Outdoor Connecting Wiring

2

(Weak Electric Signal) (mm )

Indoor/Outdoor Connecting Wiring

(Strong Electric Signal) (mm

2

)

1-phase

220-240V, 50Hz 220-240V, 50Hz 220-240V, 50Hz 220-240V, 50Hz

3

4

×1.5

15

×1.5

1-phase

3

3

3

×1.0

15

1-phase

220-240V, 50Hz

×2.5

30

×0.5

3

3

3

×1.0

15

1-phase

220-240V, 50Hz

×4.0

40

×0.5

3

3-phase

380-420V, 50Hz

5

3

×1.0

15

×2.5

40

×0.5

40 Duct Type

10. Field Wiring

Field Wiring

Duct Type 41

Field Wiring

Air-conditioner link-circuit.

For model 12

For model 18-60

42 Duct Type

Ceiling & Floor Type

Ceiling & Floor Type

1. Features ......................................................................................................... 44

2. Dimensions .................................................................................................... 46

3. Service Space ................................................................................................ 47

4. Wiring Diagrams ............................................................................................ 47

5. Air Velocity and Temperature Distributions ............................................... 50

6. Electric Characteristics ................................................................................ 52

7. Sound Levels ................................................................................................. 52

8. Accessories ................................................................................................... 53

9. The Specification of Power .......................................................................... 54

10. Field Wiring .................................................................................................. 55

Ceiling & Floor Type 43

Features

1. Features

1.1 Two-way installation

Ø The rounded design of the ceiling and floor type air conditioner allows either ceiling or floor-level installation. Ceiling installation saves room space, while floor installation helps prevent the loss of warm air.

1.2 Brief design

Ø Brief design that is suitable for any interior will not only give you cooling and heating performance but also upgrade your lifestyle.

1.3 3D airflow

Ø Vertical air flow and horizontal airflow can be adjusted by remote controller, the cooperation of the two airflow ways help to spread air comfortably throughout even a large room. With these functions, the whole room can be evenly air-conditioned for both floor-level and ceiling installation.

44 Ceiling & Floor Type

Features

1.4 Optional drainage pipe connection

Ø Both right side and left side drainage holes are available to avoid the space limitation for drainage pipe installation. Make you more convenient during installation.

1.5 Five panels for optional

Standard Panel A Panel B Panel (LED display)

C Panel (LED display) D Panel

1.6 Convenience operating and easy maintenance

Ø Remote controller as standard, wired controller for optional.

Ø The filter without screw fixed, can be took out easily.

1.7 Easy installation, save working time

Ø The pipes can be connected from bottom, back and right side, makes the installation more easily.

Ø The wiring works can be finished before installation.

1.8 Outside water pump for optional when ceiling installation.

Ceiling & Floor Type 45

Dimensions

2. Dimensions a. Wall mounting installation

A

C

D

b. Ceiling installation

F

G

Capacity (Btu/h)

12000-24000

A

990

B

660

36000 1280 660

48000-60000 1670 680

Notes:

The dimension of 12000Btu/h and 24000Btu/h are the same

The dimension of 48000Btu/h and 60000Btu/h are the same

C

203

203

240

D

505

795

1070

E

506

506

450

F

907

1195

1542

G

200

200

200

46 Ceiling & Floor Type

3. Service Space

≥35mm

4. Wiring Diagrams

MUB-12HRDN1-Q

Service Space

C

≥1000mm

Ceiling & Floor Type 47

Wiring Diagrams

MUB-18HRDN1-Q、MUB-24HRDN1-Q

MUB-30HRDN1-Q

48 Ceiling & Floor Type

MUB-36HRDN1-Q MUB-48HRDN1-Q MUB-60HRDN1-R

Wiring Diagrams

Ceiling & Floor Type 49

Air Velocity and Temperature Distributions

5. Air Velocity and Temperature Distributions

Discharge angle 60° (CEILING)

Airflow velocity

High pressure switch

Condenser

Condenser temp. sensor

Electronic expansion valve

T3

Filter

Capillary

Filter

T4

Ambient temp. sensor

4-way valve

T5

Discharge temp. sensor

Oil separator

Filter

Oil return

Capillary

Filter

Low pressure switch

Low pressure liquid accumulator

Outdoor unit

Evaporator

Evaporator temp. sensor

T2

T1

Room temp. sensor

Indoor unit

50 Ceiling & Floor Type

Discharge angle 60°(FLOOR)

Airflow velocity

Air Velocity and Temperature Distributions

Temperature

Ceiling & Floor Type 51

Electric Characteristics

6. Electric Characteristics

Model

MUB-12HRDN1-Q

MUB-18HRDN1-Q

MUB-24HRDN1-Q

MUB-30HRDN1-Q

MUB-36HRDN1-Q

MUB-48HRDN1-Q

MUB-60HRDN1-R

Notes:

MFA: Max. Fuse Amps. (A)

7. Sound Levels

Indoor Unit

Hz Voltage Min Max

50 220~240 198 254

50 220~240 198 254

50 220~240 198 254

50 220~240 198 254

50 220~240 198 254

50 220~240 198 254

50 220~240 198 254

Power Supply

MFA

20

15

15

15

15

15

15

1m

Microphone

1.5m

Air outlet side

1m

Microphone

1m

Ceiling

Model

MUB-12HRDN1-Q

MUB-18HRDN1-Q

MUB-24HRDN1-Q

MUB-30HRDN1-Q

MUB-36HRDN1-Q

MUB-48HRDN1-Q

MUB-60HRDN1-R

45

45

49

47

H

40

43

45

52

Noise level dB(A)

M

37

41

43

43

43

47

46

Floor

40

40

46

44

L

33

38

40

Ceiling & Floor Type

8. Accessories

Name

1.Hook

Installation fittings

2.Hanging arm

3. Remote controller

Remote controller & Its holder

4. Remote controller holder

5. Mounting screw (ST2.9

×10-C-H)

Shape

Accessories

Quantity

2

2

1

1

Ceiling & Floor Type 53

The Specification of Power

9. The Specification of Power

Model 12000Btu/h 18000-30000Btu/h

36000-60000

Btu/h

1-phase

30000-60000

Btu/h

1-phase

INDOOR UNIT

POWER

Phase

Frequency and

Voltage

POWER WIRING

(mm

2

)

CIRCUIT BREAKER

(A)

Phase

OUTDOOR UNIT

POWER

Frequency and

Voltage

POWER WIRING

(mm

2

)

CIRCUIT BREAKER

(A)

Indoor/Outdoor Connecting Wiring

2

(Weak Electric Signal) (mm )

Indoor/Outdoor Connecting Wiring

(Strong Electric Signal) (mm

2

)

1-phase

220-240V, 50Hz 220-240V, 50Hz 220-240V, 50Hz 220-240V, 50Hz

3

4

×1.5

20

×1.5

1-phase

3

3

3

×1.0

15

1-phase

220-240V, 50Hz

×2.5

30

×0.5

3

3

3

×1.0

15

1-phase

220-240V, 50Hz

×4.0

40

×0.5

3

3-phase

380-420V, 50Hz

5

3

×1.0

15

×2.5

40

×0.5

54 Ceiling & Floor Type

10. Field Wiring

Ceiling & Floor Type

Field Wiring

55

Field Wiring

For model 12

For model 18~60

56 Ceiling & Floor Type

Console Type

Console Type

1. Features ......................................................................................................... 59

2. Dimensions .................................................................................................... 62

3. Service Space ................................................................................................ 63

4. Wiring Diagrams ............................................................................................ 64

5. Air Velocity and Temperature Distributions ............................................... 65

6. Electric Characteristics ................................................................................ 66

7. Sound Levels ................................................................................................. 67

8. Accessories ................................................................................................... 68

9. The Specification of Power .......................................................................... 68

10. Field Wiring .................................................................................................. 69

Console Type 57

1. Features

1.1. Modern and elegant appearance

Ø The simple and stylish designs can nicely harmonies with your living space.

Features

1.2. Four panels optional

1.3. Two air-outlet ways

Cooling mode

Quick Cooling To maintain room temp

Ø Air outlet from top and bottom to make quick cooling ------When the A/C is just switched on, or room temp. is still high, cold air will be blown out from top and bottom air outlet to cool down the room quickly

Ø Air outlet from top to maintain room temp. ----When the room has been cooled down, or the A/C has been opened over 1 hour, cold air only from the top outlet to keep constant room temp

Heating mode

Ø Anti-cold air ------When the AC is just turn on, temperature of evaporator is very low, in this case, in order to prevent cold air direct blowing, only the upper louver is opened in a high position, the lower louver closed.

Console Type 59

Features

1.4. Four air inlets

1.5. Low noise

Ø DC indoor fan motor, which has five speeds.

Ø Low noise and energy saving.

Ø Advanced centrifugal fan technology makes a fast airflow and reduces the indoor noise lower to 28dB.

1.6. Golden fin is optional.

1.7. Active carbon filter is standard

1.8. Product with quick connector

Ø Optional quick connector of refrigerant pipe is very easy to install.

60 Console Type

Features

Console Type 61

Dimensions

2. Dimensions

MFA-12HRDN1-Q/ MFA-18HRDN1-Q

62 Console Type

3. Service Space

Service Space

Console Type 63

Wiring Diagrams

4. Wiring Diagrams

MFA-12HRDN1-Q

MFA-18HRDN1-Q

64 Console Type

Console Type

5. Air Velocity and Temperature Distributions

Discharge angle 60

Airflow velocity

Air Velocity and Temperature Distributions

Temperature

65

Electric Characteristics

6. Electric Characteristics

Model

MFA-12HRDN1-Q

MFA-18HRDN1-Q

Notes:

MFA: Max. Fuse Amps. (A)

Hz

50

50

Indoor Unit

Voltage Min

220~240V 198V

220~240V 198V

Max

254V

254V

Power Supply

MFA

16

16

66 Console Type

7. Sound Levels

Sound Levels

Model

MFA-12HRDN1-Q

MFA-18HRDN1-Q

Highest

38

44

Higher

35

41

Noise level dB(A)

H

33

39

M

31

37

L

28

34

Console Type 67

Accessories

8. Accessories

Installation fittings

Name

Hook

Remote controller

Remote controller & Its Frame

Frame

Mounting screw(ST2.9×10-C-H)

Others

Alkaline dry batteries (AM4)

Installation manual

Owner's manual

9. The Specification of Power

Model 12000Btu/h

Power

Phase

Frequency and

Voltage

1-phase

220-240V, 50Hz

Circuit breaker (A)

Indoor power wiring (mm

2

)

20/16

3

×1.5

1.5

Indoor/Outdoor connecting wiring

(mm

2

)

Ground wiring

Outdoor power wiring(mm

2

)

Strong electric signal (mm

2

)

Weak electric signal(mm

2

)

4

×1.5

Shape

/

/

18000

1-phase

220-240V, 50Hz

20/16

2.5

3

×2.5

3

×1.5

3

×0.5

Quantity

2

1

1

2

2

1

1

68 Console Type

10. Field Wiring

Console Type

Field Wiring

69

Field Wiring

70 Console Type

High Static Pressure Duct

High Static Pressure Duct

1. Features ......................................................................................................... 72

2. Dimensions .................................................................................................... 74

3. Service Space ................................................................................................ 75

4. Wiring Diagrams ............................................................................................ 76

5. Fan Performances ......................................................................................... 77

6. Electric Characteristics ................................................................................ 78

7. Sound Levels ................................................................................................. 78

8. Accessories ................................................................................................... 79

9. The Specification of Power .......................................................................... 80

10. Field Wiring .................................................................................................. 81

High Static Pressure Duct 71

1.

Features

1.1 High static pressure design

Ø Max static pressure of indoor unit is 160Pa.

Ø The longest distance of air supply is 14m, the max height of air supply is 6.5m.

Ø Specially recommended for spacious and large rooms like large stores and factories.

High static pressure design enables long duct.

Indoor Unit

Max. 14m long distance

Fresh

Air Intake

Intak e

Outle t

The height of air supply is 6.5m

1.2 Easy maintenance

Ø Reduce time and cost, easily removable fan motor design.

Features

1. Control box

2. Fan casing

3. Motor assembly

4. Bottom panel

1.3 Flexible Installation

Ø Different solutions for any shape room by using kinds of air distribution ducts.

72 High Static Pressure Duct

Features

L-shaped

Areas far

Y-shaped

High Static Pressure Duct 73

2.

Dimensions

MHD-36HRDN1-Q MHD-48HRDN1-Q MHD-60HRDN1-R

Dimensions

74 High Static Pressure Duct

Service Space

3.

Service Space

Ensure enough space required for installation and maintenance

500mm or more

600mm or more

Indoor unit

Maintenance and repair space

600mmx600mm

High Static Pressure Duct 75

4.

Wiring Diagrams

MHD-36HRDN1-Q

Wiring Diagrams

MHD-48HRDN1-Q MHD-60HRDN1-R

76 High Static Pressure Duct

Fan Performances

5.

Fan Performances

MHD-36HRDN1-Q MHD-48HRDN1-Q

MHD-60HRDN1-R

High Static Pressure Duct 77

6.

Electric Characteristics

Model

MHD-36HRDN1-Q

MHD-48HRDN1-Q

MHD-60HRDN1-R

Note:

MFA: Max. Fuse Amps. (A)

7.

Sound Levels

Hz

50

50

50

Indoor Units

Voltage Min.

220-240V

220-240V

220-240V

198V

198V

198V

Concealed Duct Type

Max.

254V

254V

254V

Discharge

Duct Duct

Suction

Electric Characteristics

Power Supply

MFA

Model

MHD-36HRDN1-Q

MHD-48HRDN1-Q

MHD-60HRDN1-R

1.4m

Microphone

H

52

55

55

Noise level dB(A)

M

47

52

52

L

45

48

45

78 High Static Pressure Duct

Accessories

8.

Accessories

Tubing & Fittings

Drainpipe Fittings

Name

1. Soundproof/ insulation sheath

2. Binding tape

3. Drain joint

4. Seal ring

5. Wireless Remote controller

Wireless

Remote controller

& Its Frame

Others

6. Frame

7. Mounting screw(ST2.9

×10-C-H)

8. Alkaline dry batteries (AM4)

9. Install spring

10. Installation manual

11. User

’s manual

12. Wireless Remote controller manual

Shape Quantity

2

1

1

1

1

1

2

2

2

1

1

1

High Static Pressure Duct 79

9.

The Specification of Power

Model

INDOOR UNIT POWER

Phase

Frequency and Voltage

POWER WIRING (mm

2

)

CIRCUIT BREAKER (A)

Phase

OUTDOOR UNIT POWER

Frequency and Voltage

POWER WIRING (mm

2

)

CIRCUIT BREAKER (A)

Indoor/Outdoor Connecting Wiring

(Weak Electric Signal) (mm

2

)

Indoor/Outdoor Connecting Wiring

(Strong Electric Signal) (mm

2

)

The Specification of Power

36000-48000 Btu/h

1-phase

220-240V, 50Hz

3

×1.0

15

1-phase

220-240V, 50Hz

3

×4.0

40

3

×0.5

30000-60000 Btu/h

1-phase

220-240V, 50Hz

3

×1.0

15

3-phase

380-420V, 50Hz

5

×2.5

40

3

×0.5

80 High Static Pressure Duct

Field Wiring

10.

Field Wiring

High Static Pressure Duct 81

错误!未找到引用源。

Part 3

Outdoor Units

1. Dimensions .................................................................................................... 83

2. Service Space ................................................................................................ 85

3. Piping Diagrams ............................................................................................ 86

4. Wiring Diagrams ............................................................................................ 88

5. Electric Characteristics ................................................................................ 94

6. Operation Limits ............................................................................................ 95

7. Sound Levels ................................................................................................. 96

8. Point Check Function ................................................................................... 97

9. Troubleshooting ............................................................................................ 98

82 Outdoor Unit

1.

Dimensions

Dimensions

Model

MOU-12HDN1-Q

MOU-18HDN1-Q

MOU-24HDN1-Q

MOU-30HDN1-Q

MOU-36HDN1-Q

MOU-36HDN1-R

A

761

762

842

895

990

B

530

530

560

590

624

C

290

290

335

333

366

D

315

315

360

355

396

E

270

270

312

302

340

F

279

282

324

313

354

Unit:mm

H

593

593

695

862

966

83

误 ! 未 找 到 引 用 源

Dimensions

Model

MOU-48HDN1-Q

MOU-48HDN1-R

MOU-60HDN1-R

A

940

B

600

C

376

D

400

E

340

F

360

Unit:mm

H

1245

84 错误!未找到引

用源。

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

Service Space

85

误 ! 未 找 到 引 用 源

Piping Diagrams

3.

Piping Diagrams

MOU-12HDN1-Q MOU-24HDN1-Q(220075301401)

INDOOR OUTDOOR

CHECK VALVE

(Heating Model only)

LIQUID SIDE

2-WAY VALVE

CAPILIARY TUBE

T3 Condenser temp. sensor

HEAT

EXCHANGE

(EVAPORATOR)

T1 Room temp. sensor

T4 Ambient temp. sensor

HEAT

EXCHANGE

(CONDENSER)

T2 Evaporator temp. sensor

GAS SIDE

4-WAY VALVE

3-WAY VALVE Accumulator

Compressor T5 Discharge temp. sensor

COOLING

HEATING

For MOU-24HDN1-Q, the accumulator is not included.

MOU-18HDN1-Q MOU-24HDN1-Q(220075301400)

INDOOR OUTDOOR

CAPILIARY TUBE

Electronic expansion valve

LIQUID SIDE

2-WAY 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

4-WAY VALVE

3-WAY VALVE Accumulator

Compressor

T5 Discharge temp. sensor

COOLING

HEATING

86 错误!未找到引

用源。

For MOU-24HDN1-Q, the accumulator is not included.

MOU-30HDN1-Q

INDOOR OUTDOOR

CAPILIARY TUBE

Electronic expansion valve

LIQUID SIDE

2-WAY VALVE

T3 Condenser temp. sensor

Piping Diagrams

HEAT

EXCHANGE

(EVAPORATOR)

T1 Room temp.

sensor

T4 Ambient temp. sensor

HEAT

EXCHANGE

(CONDENSER)

T2 Evaporator temp. sensor

GAS SIDE

3-WAY VALVE

Accumulator

Low pressure switch

Compressor

4-WAY VALVE

High pressure switch

T5 Discharge temp. sensor

COOLING

HEATING

MOU-36HDN1-Q MOU-36HDN1-R MOU-48HDN1-Q MOU-48HDN1-R MOU-60HDN1-R

INDOOR OUTDOOR

CAPILIARY TUBE

Electronic expansion valve

LIQUID SIDE

2-WAY VALVE T3 Condenser temp. sensor

HEAT

EXCHANGE

(EVAPORATOR)

T1 Room temp. sensor

T4 Ambient temp. sensor

HEAT

EXCHANGE

(CONDENSER)

T2 Evaporator temp. sensor

87

误 ! 未

GAS SIDE

4-WAY VALVE

3-WAY VALVE Accumulator

Low pressure switch

Compressor

Oil return Capillary

High pressure switch

T5 Discharge temp. sensor

Oil separator

COOLING

HEATING

找 到 引 用 源

Piping Diagrams

For MOU-48HDN1-Q, MOU-48HDN1-R and MOU-60HDN1-R, the accumulator is not included.

88 错误!未找到引

用源。

4.

Wiring Diagrams

MOU-12HDN1-Q

Wiring Diagrams

MOU-18HDN1-Q

89

误 ! 未 找 到 引 用 源

Wiring Diagrams

MOU-24HDN1-Q(220075301400)

90 错误!未找到引

用源。

MOU-30HDN1-Q

Wiring Diagrams

MOU-36HDN1-Q(220075501600)

91

误 ! 未 找 到 引 用 源

Wiring Diagrams

MOU-36HDN1-Q(220075501990)

92 错误!未找到引

用源。

MOU-48HDN1-Q

MOU-36HDN1-R

Wiring Diagrams

93

误 ! 未 找 到 引 用 源

Wiring Diagrams

MOU-48HDN1-R MOU-60HDN1-R

94 错误!未找到引

用源。

5.

Electric Characteristics

Model

MOU-12HDN1-Q

MOU-18HDN1-Q

MOU-24HDN1-Q

MOU-30HDN1-Q

MOU-36HDN1-Q

MOU-36HDN1-R

MOU-48HDN1-Q

MOU-48HDN1-R

MOU-60HDN1-R

50

50

50

50

Hz

50

50

50

50

50

Electric Characteristics

Outdoor Unit

Voltage

220-240

220-240

220-240

220-240

220-240

380-415

220-240

380-415

380-415

Min.

198

198

198

198

198

342

198

342

342

Max.

254

254

254

254

254

440

254

440

440

95

误 ! 未 找 到 引 用 源

Operation Limits

6.

Operation Limits

Mode

Room temperature

≥17℃

≤30℃

Outdoor temperature

0℃~50℃

(-15℃~50℃:For the models with low temperature cooling system)

-15℃~24℃

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.

96 错误!未找到引

用源。

7.

Sound Levels

Model

MOU-12HDN1-Q

MOU-18HDN1-Q

MOU-24HDN1-Q(220075301400)

MOU-24HDN1-Q(220075301401)

MOU-30HDN1-Q

MOU-36HDN1-Q

MOU-36HDN1-R

MOU-48HDN1-Q

MOU-48HDN1-R

MOU-60HDN1-R

Noise level dB(A)

H

48

51

54

59

55

55

63

59/54

62

63

Sound Levels

97

误 ! 未 找 到 引 用 源

Point Check Function

8.

Point Check Function

There is a check switch in outdoor PCB.

Push the switch SW1 to check the states of unit when the unit is running. The digital display tube will display the follow procedure when push SW1 each time.

For units except model MOU-12HDN1-Q:

Display Remark

00 Normal display

01

Indoor unit capacity demand code

Display running frequency, running state or malfunction code

Actual data*HP*10

If capacity demand code is higher than 99, the digital display tube will show single digit and tens digit. (For example, the digital display tube show

“5.0”,it means the capacity demand is 15. the digital display tube show

“60”,it means the capacity demand is 6.0)

02

Amendatory capacity demand code

03

The frequency after the capacity requirement transfer

04

The frequency after the frequency limit

05

The frequency of sending to 341

06

Indoor unit evaporator outlet temp.(T2)

07

Condenser pipe temp.(T3)

08

Outdoor ambient temp.(T4)

09

Compressor discharge temp.(Tp)

If the temp. is lower than 0 degree, the digital display tube will show

“0”.If the temp. is higher than 70 degree, the digital display tube will show

“70”.

If the temp. is lower than -9 degree, the digital display tube will show

“-9”.If the temp. is higher than 70 degree, the digital display tube will show

“70”. If the indoor unit is not connected, the digital display tube will show: “――”

The display value is between 30~120 degree. If the temp. is lower than 30 degree, the digital display tube will show

“30”.If the temp. is higher than 99 degree, the digital display tube will show single digit and tens digit. (For example, the digital display tube show

“0.5”,it means the compressor discharge temp. is 105 degree. the digital display tube show

“1.6”,it means the compressor discharge temp. is 116 degree)

10

AD value of current

11

AD value of voltage

12

Indoor unit running mode code

13

Outdoor unit running mode code

The display value is hex number.

Off:0, Fan only 1,Cooling:2, Heating:3, Forced cooling:4

14

EXV open angle

15

Frequency limit symbol

Actual data/4.

If the value is higher than 99, the digital display tube will show single digit and tens digit.

For example ,the digital display tube show

“2.0”,it means the

EXV open angle is 120×4=480p.)

Bit7 0

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

0

Frequency limit caused by T4.

Frequency limit caused by T2.

Frequency limit caused by T3.

Frequency limit caused by Tp.

Frequency limit caused by current

Frequency limit caused by voltage

The display value is hex number. For example, the digital display tube show 2A,then Bit5=1,

Bit3=1, Bit1=1.

It means frequency limit caused by T4,T3 and current.

98 错误!未找到引

用源。

9.

Troubleshooting

10.1 Indoor unit malfunction

10.1.1 Display board

Compact 4-way cassette& High pressure static duct Console

Troubleshooting

Ceiling & Floor Normal 4-way cassette

Duct

Timer indicator

Operation lamp

Temporary button

PRE-DEF indicator(cooling and heating type) or fan only indicator(cooling only type)

Alarm indicator

Infrared signal receiver

Display digital tube

MANUAL OPERATION TIMER DEF./FAN ALARM

99

误 ! 未 找 到 引 用 源

Troubleshooting

10.1.2 Troubleshooting

For compact 4-way cassette(12K),

NO. Malfunction

1

Communication malfunction between indoor and outdoor units.

2 Open or short circuit of T1 temperature sensor

3 Open or short circuit of T2 temperature sensor

4 Full-water malfunction

5 EEPROM malfunction

6 IPM module protection

7 Open or short circuit of T3 or T4 temperature sensor

8 Outdoor unit voltage protection

9 Outdoor unit over-current protection

10 Top temperature protection of compressor

11 Compressor position protection

Running lamp Timer lamp Defrosting lamp Alarm lamp

X

X

X

X

X

X

X

O

O

X

X

X

X

X

X

X

X

X

X

O

X

X

X

X

O

X

12 Discharge temperature protection of compressor X O X

O(light) X(off) ☆(flash at 2.5Hz) ◎(flash at 0.5Hz)

For ceiling & floor(12K),

NO. Malfunction Running lamp Timer lamp Defrosting lamp Alarm lamp

1

Communication malfunction between indoor and outdoor units.

X

X X

2 Open or short circuit of T1 temperature sensor

3 Open or short circuit of T2 temperature sensor

4 Full-water malfunction

5 EEPROM malfunction

X

X

X

X

X

X

X

X

X

X

6 IPM module protection

7 Open or short circuit of T3 or T4 temperature sensor

8 Outdoor unit voltage protection

9 Outdoor unit over-current protection

10 Top temperature protection of compressor

X

X

O

O

X

X

X

X

X

O

O

X

O

X

O(light) X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)

For Duct type(12K)

NO. Malfunction

Running lamp

Timer lamp

Defrosting lamp

Alarm lamp

Display(nixie tube)

1

2

Open or short circuit of T1 temperature sensor

Open or short circuit of T2 temperature sensor

3

Communication malfunction between indoor and outdoor units.

4 Full-water malfunction

5 EEPROM malfunction

6 IPM module protection

7

Open or short circuit of T3 or T4 temperature sensor

8 Outdoor unit voltage protection

X

X

X

X

X

X

X

O

O

X

X

X

X

X

X

X

X

X

X

X

O

X

O

E0

E1

E2

E3

E4

E5

E6

P0

100 错误!未找到

引用源。

Troubleshooting

9 Compressor temperature protection

10 Outdoor unit over-current protection

X

O

X

X

O(light) X(off) ☆(flash)

For console type(12K)

NO.

1

Malfunction

Communication malfunction between indoor and outdoor units.

Running lamp

X

2 Open or short circuit of T1 temperature sensor

3

5

Open or short circuit of T2 temperature sensor

EEPROM malfunction

8

9

6

7

IPM module protection

Open or short circuit of T3 or T4 temperature sensor

Outdoor unit voltage protection

Outdoor unit over-current protection

10 Top temperature protection of compressor

11 Compressor position protection

12 Fan Speed is out of control.

X

O(light) X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)

For console type(18K)

NO.

1

Malfunction

Communication malfunction between indoor and outdoor units.

Running lamp

X

2

3

Open or short circuit of T1 or T2 temperature sensor

Fan motor malfunction.

4

5

Outdoor unit malfunction

EEPROM malfunction

X

Timer lamp

X

O

O

O

X

O

Timer lamp

X

X

Defrosting lamp

X

O

O

X

X

X

X

Defrosting lamp

X

X

X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)

For compact 4-way cassette(18K)&ceiling & floor(18-30K)

NO. Malfunction Running lamp Timer lamp Defrosting lamp Alarm lamp

1

Communication malfunction between indoor and outdoor units.

X

X X

2 Open or short circuit of T1 or T2 temperature sensor

X X X

4 Full-water malfunction

5 Outdoor unit malfunction

X

X

X

X

X

X

X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)

For Normal 4-way cassette(24K-30K), For Duct type(18-30K)

NO. Malfunction

Running lamp

Timer lamp

Defrosting lamp

1

Communication malfunction between indoor and outdoor units.

X

X

2

3

Open or short circuit of T1 temperature sensor

Open or short circuit of T2 temperature sensor

X

X

X

X

Alarm lamp

X

X

X

P1

P2

Display(nixie tube)

E1

E2

E3

101

误 ! 未 找 到 引 用 源

Troubleshooting

P2

P3

P4

P5

P6

P7

E5

E6

P0

P1

E0

E2

E3

E4

4

Open or short circuit of T2B temperature sensor

X X X E4

5

6

Full-water malfunction

EEPROM malfunction

X

X

X

X

X

X

EE

E7

7 Outdoor unit malfunction X X X Ed

X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)

For Normal 4-way cassette(36K-60K), ceiling & floor(36K-60K), Duct type(36K-60K), High pressure static duct

NO. Malfunction

Running lamp

Timer lamp

Defrosting lamp

Alarm lamp

Display(nixie tube)

1

2

3

4

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

5 Full-water malfunction

6

7

EEPROM malfunction

Outdoor unit malfunction

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

E1

E2

E3

E4

EE

E7

Ed

X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)

Note: Digital display is only available for normal 4-way cassette & duct type.

10.2 Outdoor unit malfunction

Display Malfunction or Protection

EEPROM malfunction

Communication malfunction between indoor IC and outdoor IC

Communication malfunction in outdoor IC and DSP

Open or short circuit of T3 or T4 temperature sensor

Voltage protection of compressor

PFC module protection (Only for 36K, 48K with 1 phase)

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

102 错误!未找到

引用源。

10.3 Solving steps for typical malfunction

10.3.1 For the indoor unit

10.3.1.1 Open or short circuit of T1 temperature sensor

Indoor room temperature sensor is abnormal

Whether the resistance of the room temp. sensor is 10K

Yes

Replace indoor PCB

10.3.1.2. Open or short circuit of T2 temperature sensor

Evaporator temperature sensor is abnormal

Whether the resistance of the evaporator temp. sensor is 10K

Yes

Replace indoor PCB

10.3.1.3. Open or short circuit of T3 temperature sensor

Condenser temperature sensor is abnormal

Yes

Replace indoor PCB

Whether the resistance of the condenser temp. sensor is 10K

103

误 ! 未 找 到

No

No

No

Replace room temp. sensor

Replace evaporator temp. sensor

Replace condenser temp. sensor

用 源

Troubleshooting

Troubleshooting

10.3.1.4. Outdoor unit malfunction

Outdoor unit malfunction

No

Whether the outdoor unit is power on

Yes

Measure whether the voltage of the communication line

’s red and black end between the indoor and outdoor unit is +5V

Yes

Check the indoor unit main board CN5 or replace the main control board

Yes

Replace indoor PCB

10.3.1.5. EEPROM malfunction

EEPROM malfunction

Check when the power is on

No

Replace the outdoor unit board

EEPROM chip is broken

No

Check whether the main control chip 9177 is broken

No

Check PCB board or replace the main control board

Yes

Replace EEPROM

Yes

Replace 9177 chip

104 错误!未找到

引用源。

10.3.1.6. Full-water malfunction

Full-water malfunction

Troubleshooting

No

Check whether the water-level switch is inserted well

Yes

Yes

Check whether the water-level switch is broken

No

Check whether the water pump is normal

Yes

No

Check PCB board or replace the main control board

10.3.2 For the outdoor unit

10.3.2.1. E0 malfunction

E0 display

EEPROM malfunction

Judge: Check whether the EEPROM is inserted well

Yes

Replace outdoor main board

Insert the water-level switch well

Replace the water-level switch

Replace the water pump

No

Insert the EEPROM well

105

误 ! 未 找 到 引 用 源

Troubleshooting

10.3.2.2. E2 malfunction

E2 display

Communication malfunction between indoor IC and outdoor IC

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

Yes

No

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

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

No

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

No

No

Yes

Yes

Turn on the indoor unit power

Adopt the shield cable/ let shield cable earthed

Connect the signal wiring correctly

Replace the broken wiring

106 错误!未找到

引用源。

Troubleshooting

10.3.2.3. 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

No

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

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)

No

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

No

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

Yes

Yes

Yes

Yes

Yes

Replace the outdoor main board

Insert the connecting wiring well over again

Replace outdoor main board

Insert the connecting wiring well over again

Insert the connecting wiring well over again

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 IPM module

Replace the power board

107

误 ! 未 找 到 引 用 源

Troubleshooting

10.3.2.4. 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

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

Yes

Replace PCB

Trouble is solved

Replace PCB

108 错误!未找到

引用源。

Troubleshooting

10.3.2.5. 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

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

No

No

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

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

No

Check whether the resistance of outdoor ambient temperature sensor

(T4) is wrong refer to the Annex 1

No

Yes

Yes

Yes

Yes

Connect the wiring well

Replace condenser temp. sensor

Connect the wiring well

Replace outdoor ambient temperature sensor

(T4)

Replace PCB

109

误 ! 未 找 到 引 用 源

Troubleshooting

10.3.2.6. 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

10.3.2.7. E6 malfunction (Only for 36K, 48K with 1 phase)

E6 display

PFC module protection

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

Yes

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

No

Replace the PFC module

Yes

No

No

Yes

Check the power supply

Connect it tightly, check normal or not

No

Replace the outdoor main board

Trouble is solved

110 错误!未找到

引用源。

10.3.2.8. 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

Whether abnormality is the same after gas charging?

No

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

No

111

误 ! 未 找 到

Whether the connection is good?

Yes

No

Whether protector is normal?

No

Yes

Check the outdoor main PCB. Is there some problem?

Yes

引 用

Reconnect retest. and

Replace the protector.

Replace the protector.

Troubleshooting

Troubleshooting

10.3.2.9. 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

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

No

Check whether the refrigerant system is ok

Yes

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

No

Judge 4: Check whether the outdoor unit is bad ventilation

No

Yes

Yes

No

Replace high pressure switch

Yes

Connect it well

Stop the unit

Make the outdoor unit ventilate well

Judge 5: Check whether the heat exchanger is dirty

Clean the heat exchanger

No

Judge 6: Check whether the refrigerant pipe is blocked

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

112 错误!未找到

引用源。

10.3.2.10. 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

Judge 2: Whether the low pressure switch is broken

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

No

Yes

Check whether the refrigerant system is ok

Yes

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

No

Judge 4: The refrigerant of the system is leakage

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

Yes

No

Replace low pressure switch

Yes

Stop the unit

Troubleshooting

Connect it well

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.

No

Yes

Judge 5: The refrigerant pipe is blocked

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

No

113

Replace outdoor main board

! 未 找 到 引 用 源

Troubleshooting

10.3.2.11. 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

Judge 3: Check whether the outdoor unit is bad ventilation

No

Judge 4: Check whether the heat exchanger is dirty

No

Judge 5: The refrigerant pipe is blocked

No

Yes

Yes

Yes

Yes

Stop the unit

Make the outdoor unit ventilate well

Clean the heat exchanger

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

Replace outdoor main board

114 错误!未找到

引用源。

Troubleshooting

10.3.2.12. P4 malfunction

When compressor discharge temperature is higher than 115

°C, the unit will stop, and unit runs again when compressor discharge temperature is lower than 90

°C.

P4 display

Discharge temperature protection of compressor

Check whether the compressor discharge temp. is more than 115

°C ?

Yes

No

Check whether the wiring connection is right between compressor discharge temp. sensor and

PCB according to wiring diagrams

No

Correct the wiring connection

Yes

Judge: The discharge temp. sensor is broken

Check whether the refrigerant is leak

Yes

Stop leaking and add refrigerant

Method: Check whether the resistance of compressor discharge temp. sensor is right refer to the Annex 2

Yes

Replace outdoor main board

No

Replace the compressor discharge temp. sensor

115

误 ! 未 找 到 引 用 源

Troubleshooting

10.3.2.13. P5 malfunction

When condenser high temp. is more than 65

°C, the unit will stop, and unit runs again when outdoor pipe temp. less than 52

°C.

P5 display

High temperature protection of condenser

Check whether the condenser temperature is more than 65

°C

No

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

No

Yes

Replace outdoor main board

Stop the unit

Yes

Yes

Clean the heat exchanger

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

Yes

Yes

Replace the temperature sensor

Judge1: The outdoor temp. is too high

No

Judge 2: Check whether the heat exchanger is dirty

No

Judge 3: The refrigerant pipe is blocked

No

Replace outdoor main board

116 错误!未找到

引用源。

Troubleshooting

10.3.2.14. 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, 50Hz

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

Yes No Yes

No

Connect it well, check ok or not?

Check whether the lines in

E-part box are connected tightly

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

Yes

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

Yes

No

Yes

No

No

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

No

Yes

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

No

Connect it correctly and tightly, check ok or not?

No

Connect it tightly, check ok or not?

No

Replace the single-phase bridge

No

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

Trouble is solved

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

117

误 ! 未 找

Yes

Replace the power board

引 用 源

Troubleshooting

10.3.2.15. 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, 50Hz

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

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

No

Connect it correctly and tightly, check ok or not?

Yes

Check whether the connecting line of the compressor is connected tightly

Yes

No

Connect it tightly, check ok or not?

No

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

Yes

No

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

No

Yes

Yes

Check whether the lines in

E-part box are connected tightly

Yes

Check whether the three phase bridge is normal?

Trouble is solved

Yes

Check whether the 3300

µF/400V electrolytic capacitor is normal?

Trouble is solved

No

No

No

No

Connect it tightly, check ok or not?

No

Replace the three phase bridge

Replace this electrolytic capacitor

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

Yes

Trouble is solved

118 错误!未找到

引用源。

10.3.2.16. P7 malfunction

P7 display

High temperature protection of evaporator

Whether compressor operates?

Yes

Check whether the heat exchanger is dirty, the air-outlet is blocked and the indoor fan is normal?

Yes

Clean the heat exchanger and the air-outlet

No

Check whether the indoor fan is normal

No

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

119

误 ! 未 找 到

Whether the connection is good?

No

Reconnect retest. and

Yes

Whether the temperature sensor is normal?

No

Yes

Whether the indoor

PCB is normal?

No

Replace the temperature sensor

Replace the indoor

PCB

引 用 源

Troubleshooting

Troubleshooting

Appendix Indoor Temp. and Pipe Temp. Sensor Resistance Value Table (℃--K)

-20

K Ohm

115.266

20

K Ohm

12.6431

60

K Ohm

2.35774

100

-19

-18

108.146

101.517

21

22

12.0561

11.5000

61

62

2.27249

2.19073

101

102

44.0000

41.5878

39.8239

37.1988

35.2024

33.3269

31.5635

29.9058

28.3459

26.8778

25.4954

24.1932

22.5662

96.3423

89.5865

84.2190

79.3110

74.5360

70.1698

66.0898

62.2756

58.7079

56.3694

52.2438

49.3161

46.5725

21.8094

20.7184

19.6891

18.7177

17.8005

16.9341

16.1156

15.3418

14.6181

13.9180

13.2631

42

43

44

45

46

47

48

36

37

38

39

40

41

30

31

32

33

34

35

23

24

25

26

27

28

29

49

50

51

52

53

54

55

56

57

58

59

6

7

8

2

3

4

5

-1

0

1

-4

-3

-2

-10

-9

-8

-7

-6

-5

-17

-16

-15

-14

-13

-12

-11

9

10

11

12

13

14

15

16

17

18

19

6.13059

5.87359

5.62961

5.39689

5.17519

4.96392

4.76253

4.57050

4.38736

4.21263

4.04589

3.88673

3.73476

10.9731

10.4736

10.000

9.55074

9.12445

8.71983

8.33566

7.97078

7.62411

7.29464

6.98142

6.68355

6.40021

3.58962

3.45097

3.31847

3.19183

3.07075

2.95896

2.84421

2.73823

2.63682

2.53973

2.44677

82

83

84

85

86

87

88

76

77

78

79

80

81

70

71

72

73

74

75

63

64

65

66

67

68

69

89

90

91

92

93

94

95

96

97

98

99

1.34105

1.29078

1.25423

1.21330

1.17393

1.13604

1.09958

1.06448

1.03069

0.99815

0.96681

0.93662

0.90753

2.11241

2.03732

1.96532

1.89627

1.83003

1.76647

1.70547

1.64691

1.59068

1.53668

1.48481

1.43498

1.38703

0.87950

0.85248

0.82643

0.80132

0.77709

0.75373

0.73119

0.70944

0.68844

0.66818

0.64862

122

123

124

125

126

127

128

116

117

118

119

120

121

110

111

112

113

114

115

103

104

105

106

107

108

109

129

130

131

132

133

134

135

136

137

138

139

0.43482

0.42304

0.41164

0.40060

0.38991

0.37956

0.36954

0.35982

0.35042

0.3413

0.33246

0.32390

0.31559

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

0.44699

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

120 错误!未找到

引用源。

Installation

Part 4

Installation

1.Precaution on Installation ........................................................................... 121

2.Vacuum Dry and Leakage Checking .......................................................... 122

3.Additional Refrigerant Charge .................................................................... 124

4.Water Drainage ............................................................................................. 125

5.Insulation Work ............................................................................................ 128

6.Wiring ............................................................................................................ 129

7.Test Operation .............................................................................................. 130

Installation 121

Precaution on Installation

1. Precaution on Installation

1). Measure the necessary length of the connecting pipe, and make it by the following way. a. Connect the indoor unit at first, then the outdoor unit.

Bend the tubing in proper way. Do not harm them.

Specially Notice the pipe length/height/dimension of each capacity.

Maximum pipe length

Model

12,000Btu/h

18,000Btu/h ~24,000Btu/h

30,000Btu/h

36,000Btu/h

48,000Btu/h ~60,000Btu/h

Piping sizes

Model

12,000Btu/h~18,000Btu/h

Max. Length

10m

25m

25m

30m

50m

Max. Elevation

5m

12m

15m

20m

25m

Liquid(mm)

6.4

Gas(mm)

12.7

24,000Btu/h~60,000Btu/h

CAUTIONS

9.5 15.9 l

Daub the surfaces of the flare pipe and the joint nuts with frozen oil, and wrench it for 3~4 rounds l

With hands before fasten the flare nuts. l

Be sure to use two wrenches simultaneously when you connect or disconnect the pipes.

Pipe gauge Tightening torque

Flare dimension A

Min (mm) Max

Φ6.4

14.2~17.2N.m

(144~176 kgf.cm)

8.3 8.7

Φ9.5

Φ12.7

Φ15.9

32.7~39.9N.m

(333~407kgf.cm)

49.5~60.3N.m

(504~616kgf.cm)

61.8~75.4N.m

(630~770 kgf.cm)

12.0

15.4

18.6

12.4

15.8

19.1

Flare shape

Φ19

97.2~118.6N.m

(990~1210kgf.cm)

22.9 23.3 b. The stop value of the outdoor unit should be closed absolutely (as original state). Every time you connect it, first loosen the nuts at the part of stop value, then connect the flare pipe immediately (in 5 minutes). If the nuts have been loosened for a long time, dusts and other impurities may enter the pipe system and may cause malfunction later. So please expel the air out of the pipe with refrigerant before connection. c. Expel the air after connecting the refrigerant pipe with the indoor unit and the outdoor unit. Then fasten the nuts at the repair-points.

2) Locate The Pipe a. Drill a hole in the wall (suitable just for the size of the wall conduit), then set on the fittings such as the wall conduit and its cover. b. Bind the connecting pipe and the cables together tightly with binding tapes. Do not let air in, which will cause water leakage by condensation. c. Pass the bound connecting pipe through the wall conduit from outside. Be careful of the pipe allocation to do no damage to the tubing.

3) Connect the pipes.

4) Then, open the stem of stop values of the outdoor unit to make the refrigerant pipe connecting the indoor unit with the outdoor unit in fluent flow.

5) Be sure of no leakage by checking it with leak detector or soap water.

6) Cover the joint of the connecting pipe to the indoor unit with the soundproof / insulating sheath (fittings), and bind it well with the tapes to prevent leakage.

122 Installation

Vacuum Dry and Leakage Checking

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 pipe dry. Under one atmospheric pressure, the boiling point of water(steam temperature) is 100

. Use vacuum pump 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.

N ec e ss a ry v a cu u m d e g re e

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 l 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) l 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. l If the pump can ’t achieve -755mmHg after pumping 3 hours, please check if there are some leakage points. l 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. l Vacuuming from liquid pipe and gas pipe at the same time. l Sketch map of common vacuum dry procedure.

Installation 123

Vacuum Dry and Leakage Checking

②. Special vacuum dry procedure l This vacuum dry method is used in the following conditions: l There ’s moisture when flushing the refrigerant pipe. l Rainwater may enter into the pipe. l Vacuum dry for the first time ······ 2h pumping

.

······ 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

Determinant: Pass if achieving below -755mmHg. If -755mmHg can

’t be achieved in 2h, repeat procedure and .

⑤. Vacuum placing test

······ 1h

⑥. Sketch map of special vacuum dry procedure

124 Installation

Additional Refrigerant Charge

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)

L(m)

φ6.4 Φ9.5 Φ12.7

Less than 5m (One-way)

— — —

Added Refrigerant When

Over 5m(One-way)

11g/m

×(L-5)

30g/m

×(L-5)

60g/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

Installation 125

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.

Hard PVC pipe

Diameter

25~40mm

Distance between the prop stands

1.5~2m

3). Precautions

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

the drainpipe should be heat -insulated to prevent atomization.

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.

All connection should be firm.

Wipe color on PVC pipe to note connection.

Climbing, horizontal and bending conditions are prohibited.

⑦ The dimension of drainpipe can

’t less than the connecting dimension of indoor drainpipe.

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

126 Installation

For Four-way cassette

Water Drainage

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)

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

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

Turn on t he 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.

Installation 127

Water Drainage

Stop the air condi tioner running, turn off the power, and put back the cover. l 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. l 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.

128 Installation

Installation

Insulation Work

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 less than 120

in the low -pressure side(For the cooling type machine, no requirements at the low-pressure side.)

Example: Heat pump type----Heat-resistant Polyethylene foam (withstand above 120 )

Cooling only type---- Polyethylene foam (withstand above 100 )

2). Thickness choice for insulation material

Insulation material thickness is as follows:

Refrigerant pipe

Drainage pipe

Pipe diameter (mm)

Φ6.4—Φ25.4

Φ28.6—Φ38.1

Inner diameter

Φ20—Φ32

Adiabatic material thickness

10mm

15mm

6mm

5.2 Refrigerant pipe insulation

1). Work Procedure

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

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

129

Wiring MLCAC-UTSM-2010-06

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

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

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.

130 Installation

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.

l The indoor unit and outdoor unit are installed properly. l Tubing and wiring are correctly completed. l The refrigerant pipe system is leakage-checked. l The drainage is unimpeded. l The ground wiring is connected correctly. l The length of the tubing and the added stow capacity of the refrigerant have been recorded. l The power voltage fits the rated voltage of the air conditioner. l There is no obstacle at the outlet and inlet of the outdoor and indoor units. l The gas-side and liquid-side stop values are both opened. l 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

l Whether the switch on the remote controller works well. l Whether the buttons on the remote controller works well. l Whether the air flow louver moves normally. l Whether the room temperature is adjusted well. l Whether the indicator lights normally. l Whether the temporary buttons works well. l Whether the drainage is normal. l Whether there is vibration or abnormal noise during operation.

Outdoor unit

l Whether there is vibration or abnormal noise during operation. l Whether the generated wind, noise, or condensed of by the air conditioner have influenced your neighborhood. l Whether any of the refrigerant is leaked.

Installation 131

Control

Part 5

Control

1. Controller ....................................................................................................... 132

132 Control

1. 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

TIMER ON

TIMER OFF

1

7

Adjust

ON/OFF

8

Fan speed setting

9

10

11

12

13

TIMER ON

Economic operation

TIMER OFF

Lock

Reset

Controller

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℃

Control 133

Controller

Buttons and functions

1. Adjust

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

2. Adjust

: Increase the set temp. Keeping pressing will increase the temp with 1℃ per 0.5s.

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

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.

134 Control

1.2 R51/E

Remote Controller Specifications

Model

Rated Voltage

Lowest Voltage of CPU Emitting Signal

Reaching Distance

Environment Temperature Range

R51/E

3.0V

2.0V

8m (when using 3.0 voltage, it can get 11m)

-5℃~60℃

Introduction of Function Buttons on the Remote Controller

Controller

1. TEMP DOWN Button: Push the TEMP DOWN button to decrease the indoor temperature setting or to adjust the timer in a counter-clockwise direction.

2. MODLE SELECT Button: Each time you push the button, a mode is selected in a sequence that goes from AUTO, COOL, DRY, HEAT and FAN as the following figure indicates:

3. SWING Button: Push this switch button to change the louver angle.

4. RESET Button: When the RESET button is pushed, all of the current settings are cancelled and the control will return to the initial settings.

5. ECONOMIC RUNNING Button: Push this button to go into the Energy-Saving operation mode.

6. LOCK Button: Push this button to lock in all the current settings. To release settings, push again.

7. CANCEL Button: Push this button to cancel the TIMER settings.

8. TIMER Button: This button is used to preset the time ON (start to operate) and the time OFF (turn off the operation)

9. ON/OFF Button: Push this button to start the unit operation. Push the button again to stop the unit operation.

Control 135

Controller

10. FAN SPEED Button: This button is used for setting fan speed in the sequence that goes from AUTO,

LOW, MED to HIGH, and then back to Auto.

11. TEMP UP Button: Push this button to increase the indoor temperature setting or to adjust the timer in a counter-clockwise direction.

12. VENT Button: Push this button to set the ventilating mode. The ventilating mode will operate in the following sequence:

1.3 KJR-10B

Name and functions of buttons on the wire controller

1 mode selection button:

It is used to select mode, push the button one time, then the operation modes will change

In turn as follows:

AUTO COOL DRY

HEAT

FAN

Remark: no heating mode if wire controller is set as the cool only.

2 Timer on button:

Push the button to set TIMER ON, each time you push the button the time moves forward by o.5 hours.

When the set time is over 10 hours, each time you push the button the time moves forward by 1 hour. If want to cancel the TIMER ON, then adjust the time of TIMER ON as 0.0

3 Timer off button:

Push the button to set TIMER OFF, each time you push the button the time moves forward by o.5 hours.

When the set time is over 10 hours, each time you push the button the time moves forward by 1 hour. If want to cancel the TIMER OFF, then adjust the time of TIMER OFF as 0.0

4 CLOCK button:

136 Control

Controller

Normally display the clock set currently (display 12:00 for the first electrifying or resetting). When push the button for 4 seconds, the hour part on the clock display flashes every 0.5 seconds, then push button and to adjust hour; push the button CLOCK again, the minute part flashes every 0.5 seconds, then push and button to adjust minute. When set clock or alter clock setting, must push the confirm button to complete the setting

Name and function of LCD on the wire controller

1 Mode select button (MODE):

Press MODE button to select

“COOL”, “DRY” , "HEAT", or "FAN ONLY" mode.(HEAT is invalid for

COOL ONLY wire controller.)

AUTO COOL DRY HEAT FAN

2 Fan speed button (FAN SPEED)

Press FAN SPEED to select fan speed from "AUTO", "LOW"," MED" , and "HIGH

”. NOTE: some air conditioners have no MED fan speed, and then the MED is regarded as HIGH.

3 Economical operation displays:

Press ECONOMICAL to display economical operation, if press ECONOMICAL again then the display disappears

4 Lock display

Press LOCK to display the icon of LOCK. Press the button again then the icon of LOCK disappears. In the mode of LOCK, all the buttons are invalid except for LOCK button.

5 CLOCK display.

Usually display the clock set currently. Press the button CLOCK for 4 seconds, the HOUR part will flash, press button

▲ and ▼ to adjust HOUR. Press the button CLOCK again, the minute part flash, press button

▲ or▼ to adjust MINUTE. After clock set or clock operation, it must press CONFIRM to complete the set.

Control 137

Controller

6 TIMER ON/OFF display:

Display ON at the state of TIMER ON adjustment or after only set the TIMER ON; Display OFF at the state of TIMER OFF adjustment or after only set the TIMER OFF; Display ON/OFF if simultaneously set the mode of TIMER ON and TIMER OFF.

7 Temperature display area:

Usually display the set temperature. Press the buttons of and to set temperature, at the mode of FAN, there is no figure display in the area.

Installation

Installation Notice:

When the air conditioner needs the constant frequency wire Controller, be sure adding a Wire Joint with 5 terminal named A, B, C, D, E in indoor unit, and fixing a infrared emitter whose anode and cathode connecting with A and B near the receiver in the Indoor Unit Switch Board, then connecting the terminal +5v,

GND, Run in the Switch Board to C,D,E respectively.

138 Control

Controller

NOTE

Never turn screws too tightly, or else the cover would be dented or the Liquid Crystal breaks.

Please leave enough long cable for maintenance of the Wire Controller Board.

Control 139

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