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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
错
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
错
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
错
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
错
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)
错
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
错
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
错
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
错
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
错
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
错
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
错
103
误 ! 未 找 到
No
No
No
引
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
错
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
错
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
错
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
错
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.
源
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
错
113
误
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
错
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
错
117
误 ! 未 找
Yes
到
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.)
错
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
①
The diameter of drainpipe should meet the drainage requirement at least.
②
the drainpipe should be heat -insulated to prevent atomization.
③
Drainpipe should be installed before installing indoor unit. After powering on, there is some water in water-receiver plate. Please check if the drain pump can operate correctly.
④
All connection should be firm.
⑤
Wipe color on PVC pipe to note connection.
⑥
Climbing, horizontal and bending conditions are prohibited.
⑦ The dimension of drainpipe can
’t less than the connecting dimension of indoor drainpipe.
⑧
Heat -insulation should be done well to prevent condensation.
⑨ Indoor units with different drainage type can
’t share one convergent drainpipe.
4.2 Drainpipe Trap
1). If the pressure at the connection of the drainpipe is negative, it needs to design drainpipe trap.
2). Every indoor unit needs one drainpipe trap.
3). A plug should be designed to do cleaning.
4.3 Upwards drainage (drain pump)
For Four-way cassette(compact)
Plug
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
①
Poke the Water Level Switch , remove the cover, use water pipe to pour 2000ml water into the water receipt plate through the water inlet.
②
Turn on 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
③
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
①
Before laying the pipes, the non -jointing parts and non-connection parts should be heat insulated.
②
When the gas proof test is eligible, the jointing area, expanding area and the flange area should be heat insulated
2). Insulation for non-jointing parts and non-connection parts wrong right
Gas pipe and liquid pipe should not be put together to insulate
Insulate the gas pipe
(cooling only)
Insulate the gas pipe and liquid pipe
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
①
Insulate for the jointing area, expanding area and the flange area should be done after checking leakage of the pipes
②
Make sure there
’s no clearance in the joining part of the accessorial insulation material and local preparative insulation material.
5.3 Drainage pipe insulation
1) The connection part should be insulated, or else water will be condensing at the non-insulation part.
5.4 Note
1) The jointing area, expanding area and the flange area should be heat insulated after passing the pressure test
2) The gas and liquid pipe should be heat insulated individually, the connecting part should be heat insulated individually.
3) Use the attached heat-insulation material to insulate the pipe connections (pipes
’ tie-in ,expand nut ) of the indoor unit.
6. Wiring
Please refer to the Wiring Diagram.
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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