Multi Splits Series
HKD Indoor Units
HND Indoor Units CBD Indoor Units
XAD Indoor Units
DCD Indoor Units
AWSI-HKD009-N11 AWSI-HND009-N11
Outdoor Units
AWAU-YCZ218-H11
AWSI-HKD012-N11 AWSI-HND012-N11 AWSI-CBD012-N11 AWSI-XAD012-N11 AWSI-DCD012-N11 AWAU-YCZ327-H11
AWSI-HKD018-N11 AWSI-HND018-N11
AWAU-YCZ430-H11
AWAU-YCZ536-H11
REFRIGERANT
REFRIGERANT
REFRIGERANT
R410A
SM YCZ DCI 1-A.1 GB
HEATPUMP
AUG 2014
Contents
Part 1 General Information .................................................................................................... 1
Part 2 Indoor Units ............................................................................................................... 11
Part 3 Outdoor Units............................................................................................................. 53
Part 4 Installation.................................................................................................................. 74
Part 5 Electrical Control System ......................................................................................... 85
※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. Product specification .......................................................4
General Information
1
Model Lists
1. Model Lists
1.1 Indoor Units
Cooling & Heating
Indoor units type
HKD indoor
HND indoor
Four-way cassette(compact)
Duct
Console
Indoor units model
AWSI-HKD009-N11
AWSI-HKD012-N11
AWSI-HKD018-N11
AWSI-HND009-N11
AWSI-HND012-N11
AWSI-HND018-N11
AWSI-CBD012-N11
AWSI-DCD012-N11
AWSI-XAD012-N11
Capacity(Btu/h)
9000
12000
18000
9000
12000
18000
12000
12000
12000
Power supply
220-240V 50Hz 1Ph
220-240V 50Hz 1Ph
220-240V 50Hz 1Ph
220-240V 50Hz 1Ph
220-240V 50Hz 1Ph
220-240V 50Hz 1Ph
220-240V 50Hz 1Ph
220-240V 50Hz 1Ph
220-240V 50Hz 1Ph
1.2 Outdoor Units
2
Universal Outdoor unit Model
Compressor type
Compressor Brand
Power supply
AWAU-YCZ218-H11
Twin-rotary
GMCC
220-240V 50Hz 1Ph
AWAU-YCZ327-H11
Twin-rotary
GMCC
220-240V 50Hz 1Ph
AWAU-YCZ430-H11
Twin-rotary
GMCC
220-240V 50Hz 1Ph
AWAU-YCZ536-H11
Twin-rotary
MITSUBISHI
220-240V 50Hz 1Ph
General Information
External Appearance
2. External Appearance
2.1 Indoor Units
HKD
HND
Four-way cassette(Compact)
Duct
Console
2.2 Outdoor Units
General Information
3
Product specification
3. Product specification
Model Outdoor Unit
AWAU-YCZ218-H11
Installation Method of Pipe
2 x AWSI-HND009-N11
2 x AWSI-HKD009-N11
Installation Method of Pipe
Flared
Flared
Characteristics
Heating
Cooling
Capacity (1)
kW
5.2
6
5.2
6
Pdesign
kW
5.2
5.9
5.2
5.6
SEER / SCOP (2)
W/W
Energy efficiency class
Annual energy consumption
Cooling
Heating
Units
Average
Average
6.1
4.1
5.6
3.8
A++
A+
A+
A
kWh
298
2015
325
2063
Tbiv
oC
N/A
-7
N/A
-7
Tol
oC
N/A
-15
N/A
-15
Power supply
V/Ph/Hz
Circuit breaker rating
Rated power input (Maximum power input)
Rated current (Maximum current)
A
25
kW
3.2
A
Refrigerant control
Twin Rotary DC Inverter
Fan type & quantity
Axial x 1
Fan speeds
H/L
RPM
750
Air flow
H/L
m3/hr
2500
Sound power level(4)
H/L
dB(A)
65
Sound pressure level(5)
H/L
dB(A)
55
WxHxD
mm
845x700x320
kg
48
mm
965x395x755
kg
52
units
2 levels
Dimensions
Weight
Package dimensions
LxWxH
Packaged weight
OUTDOOR
14.5
Capillary+EXV
Compressor type. model
Stacking height
Refrigerant type
Refrigerant charge (standard connecting
tubing length)
Additional charge per 1 meter
kg(10m)
1.9
gr / 1m
10m<L<20m 15g/m
Liquid line
In.(mm)
2x1/4”(Φ6.35)
Suction line
In.(mm)
2x3/8”(Φ9.52)
m
30
m
20
m
10
m
15
m
10
Max. length for all rooms
Max. length for one indoor unit
OU higher than IU
Connection Max.
height
s between
difference
units
between
indoor and OU lower than IU
outdoor
unit
Max. height difference between
indoor units
Operation control type
4
220-240V/Single/50Hz
R410A
Remote control
General Information
Product specification
Model Outdoor Unit
AWAU-YCZ327-H11
Installation Method of Pipe
3 x AWSI-HND009-N11
3 x AWSI-HKD009-N11
Installation Method of Pipe
Flared
Flared
Characteristics
Capacity (1)
Pdesign
SEER / SCOP (2)
Units
Cooling
kW
7.8
kW
W/W
Energy efficiency class
Heating
Cooling
Average
Heating
Average
8.5
7.8
8.5
7.8
8
7.8
8
6.6
3.9
6.1
3.8
A++
A
A++
A
kWh
414
2872
448
2947
Tbiv
oC
N/A
-7
N/A
-7
Tol
oC
N/A
-15
N/A
-15
Annual energy consumption
Power supply
Circuit breaker rating
Rated power input (Maximum power input)
Rated current (Maximum current)
V/Ph/Hz
220-240V/Single/50Hz
A
25
kW
3.6
A
16.5
Refrigerant control
Capillary+EXV
Compressor type. model
Twin Rotary DC Inverter
Fan type & quantity
Axial x 1
Fan speeds
H/L
RPM
800
Air flow
H/L
m3/hr
3500
Sound power level(4)
H/L
dB(A)
68
Sound pressure level
(5)
Dimensions
H/L
dB(A)
58
WxHxD
mm
900x860x315
kg
62
LxWxH
mm
1043x395x915
Weight
OUTDOOR
Package dimensions
Packaged weight
Stacking height
kg
67
units
2 levels
Refrigerant type
R410A
Refrigerant charge (standard connecting tubing length)
Additional charge per 1 meter
gr / 1m
15m<L<25m 15g/m
In.(mm)
3x1/4”(Φ6.35)
Suction line
In.(mm)
3x3/8”(Φ9.52)
m
45
m
25
m
10
m
15
m
10
Max. length for one indoor unit
Max. height OU higher than IU
difference
between
OU lower than IU
indoor and
outdoor unit
Max. height difference between indoor
units
Operation control type
General Information
2.4
Liquid line
Max. length for all rooms
Connections
between
units
kg(10m)
Remote control
5
Product specification
AWAU-YCZ430-H11
Model Outdoor Unit
Installation Method of Pipe
4 x AWSI-HND009-N11
4 x AWSI-HKD009-N11
Installation Method of Pipe
Flared
Flared
Characteristics
Heating
Cooling
Capacity (1)
kW
8.5
9
8.5
9
Pdesign
kW
8.5
8.2
8.5
8.2
SEER / SCOP (2)
W/W
Energy efficiency class
Annual energy consumption
Cooling
Heating
Units
Average
Average
6.6
3.9
5.8
3.8
A++
A
A+
A
kWh
451
2944
513
3021
Tbiv
oC
N/A
-7
N/A
-7
Tol
oC
N/A
-15
N/A
-15
Power supply
V/Ph/Hz
Circuit breaker rating
Rated power input (Maximum power input)
Rated current (Maximum current)
A
25
kW
3.7
A
Refrigerant control
Twin Rotary DC Inverter
Fan type & quantity
Axial x 1
Fan speeds
H/L
RPM
800
Air flow
H/L
m3/hr
3800
Sound power level(4)
H/L
dB(A)
70
Sound pressure level(5)
H/L
dB(A)
58
WxHxD
mm
900x860x315
kg
65
mm
1043x395x915
kg
69
units
2 levels
Dimensions
Weight
Package dimensions
OUTDOOR
17
Capillary+EXV
Compressor type. model
LxWxH
Packaged weight
Stacking height
Refrigerant type
R410A
Refrigerant charge (standard connecting tubing length)
kg(10m)
2.4
Additional charge per 1 meter
gr / 1m
20m<L<30m 15g/m
Liquid line
In.(mm)
4x1/4”(Φ6.35)
Suction line
In.(mm)
4x3/8”(Φ9.52)
m
60
m
30
m
10
m
15
m
10
Max. length for all rooms
Max. length for one indoor unit
Connections
Max. height OU higher than IU
between
difference
units
between
OU lower than IU
indoor and
outdoor unit
Max. height difference between indoor
units
Operation control type
6
220-240V/Single/50Hz
Remote control
General Information
Product specification
AWAU-YCZ536-H11
Model Outdoor Unit
Installation Method of Pipe
5 x AWSI-HND009-N11
5 x AWSI-HKD009-N11
Installation Method of Pipe
Flared
Flared
Characteristics
Heating
Cooling
Capacity (1)
kW
10.5
11.5
10.5
11.5
Pdesign
kW
10.5
10.5
10.5
10.5
W/W
5.6
3.8
5.1
3.8
A+
A
A
A
SEER / SCOP
(2)
Energy efficiency class
Annual energy consumption
Cooling
Heating
Units
Average
Average
kWh
656
3868
721
3868
Tbiv
oC
N/A
-7
N/A
-7
Tol
oC
N/A
-15
N/A
-15
Power supply
V/Ph/Hz
Circuit breaker rating
Rated power input (Maximum power input)
Rated current (Maximum current)
A
32
kW
4.9
A
Refrigerant control
22
Capillary +EXV
Compressor type. model
Twin Rotary DC Inverter
Fan type & quantity
Axial x 1
Fan speeds
H/L
RPM
850
Air flow
H/L
m3/hr
5500
Sound power level(4)
H/L
dB(A)
70
Sound pressure level(5)
H/L
dB(A)
60
WxHxD
mm
990x345x965
kg
80
mm
1120x435x1100
kg
91
units
2 levels
Dimensions
Weight
Package dimensions
OUTDOOR
220-240V/Single/50Hz
LxWxH
Packaged weight
Stacking height
Refrigerant type
R410A
Refrigerant charge (standard connecting tubing length)
kg(10m)
3
Additional charge per 1 meter
gr / 1m
25m<L<30m 15g/m
Liquid line
In.(mm)
5x1/4”(Φ6.35)
Suction line
In.(mm)
5x3/8”(Φ9.52)
m
75
m
30
m
10
m
15
m
10
Max. length for all rooms
Max. length for one indoor unit
Connections
Max. height OU higher than IU
between
difference
units
between
OU lower than IU
indoor and
outdoor unit
Max. height difference between indoor
units
Operation control type
General Information
Remote control
7
Product specification
AWSI-HND009-N11
Model Indoor Unit
Installation Method of Pipe
Flared
Characteristics
Capacity (4)
Power supply
Cooling
Heating
Cooling
Heating
kW
2.7
2.8
3.5
3.7
220-240
1
1
Hz
50
50
Crossflow x 1
Crossflow x 1
RPM
1150 / 1000 / 750
1170 / 1000 / 800
Cooling
SH/H/M/L
Heating
SH/H/M/L
RPM
1150 / 1000 / 750
1170 / 1000 / 800
SH/H/M/L
m3/hr
530/460/350
630/490/380
Air flow (1)
INDOOR
External static pressure
Min
Pa
0
0
Sound power level (2)
SH/H/M/L
dB(A)
53
57
Sound pressure level(3)
SH/H/M/L
dB(A)
40/37/28
41/37/28
l/hr
1.0
1.3
Moisture removal
mm
ODΦ17.5
ODΦ17.5
WxHxD
mm
750x280x198
835x280x198
kg
8
9
LxWxH
mm
830x270x355
910x270x355
Condensate drain tube I.D
Dimensions
Net Weight
Package dimensions
Packaged weight
kg
Operation control type
Model Indoor Unit
10.1
14
Remote control
Remote control
AWSI-HND018-N11
AWSI-HKD009-N11
Installation Method of Pipe
Flared
Characteristics
Capacity (4)
Power supply
Cooling
Heating
Cooling
Heating
kW
5
5.6
2.7
2.8
220-240
220-240
Ph
1
1
Hz
50
50
Crossflow x 1
Crossflow x 1
RPM
1150 / 900 / 750
1150 / 1000 / 800
Fan type & quantity
Fan speeds
Flared
Units
V
Cooling
SH/H/M/L
Heating
SH/H/M/L
RPM
1150 / 900 / 750
1150 / 1000 / 800
SH/H/M/L
m3/hr
1000/780/650
620/540/440
Air flow (1)
External static pressure
INDOOR
220-240
Ph
Fan type & quantity
Min
Pa
0
0
Sound power level (2)
SH/H/M/L
dB(A)
58
58
Sound pressure level(3)
SH/H/M/L
dB(A)
47/40/34
42/38/30
l/hr
1.7
1,0
Moisture removal
mm
ODΦ17.5
ODΦ17.5
WxHxD
mm
990x315x218
800x275x188
kg
12.5
6.5
LxWxH
mm
1065x300x400
865x265x350
Condensate drain tube I.D
Dimensions
Net Weight
Package dimensions
Packaged weight
Operation control type
8
Flared
Units
V
Fan speeds
AWSI-HND012-N11
kg
15.4
9.5
Remote control
Remote control
General Information
Product specification
AWSI-HKD012-N11
Model Indoor Unit
Installation Method of Pipe
Flared
Characteristics
Capacity (4)
Power supply
Cooling
Heating
Cooling
Heating
kW
3.2
3.5
5
5.1
220-240
1
1
Hz
50
50
Crossflow x 1
Crossflow x 1
RPM
1200 / 1050 / 800
1100 / 800 / 700
Cooling
SH/H/M/L
Heating
SH/H/M/L
RPM
1200 / 1050 / 800
1100 / 800 / 700
SH/H/M/L
m3/hr
630/550/430
730/480/400
Air flow (1)
External static pressure
INDOOR
220-240
Ph
Fan type & quantity
Min
Pa
0
0
Sound power level (2)
SH/H/M/L
dB(A)
58
58
Sound pressure level(3)
SH/H/M/L
dB(A)
43/39/31
43/40/33
l/hr
1,1
1,7
Moisture removal
mm
ODΦ17.5
ODΦ17.5
WxHxD
mm
800x275x188
940x275x205
kg
7.5
9.5
LxWxH
mm
865x265x350
1015x265x350
Condensate drain tube I.D
Dimensions
Net Weight
Package dimensions
Packaged weight
kg
Operation control type
Model Indoor Unit
9.5
12.5
Remote control
Remote control
AWSI-XAD012-N11
AWSI-DCD012-N11
Installation Method of Pipe
Flared
Characteristics
Capacity (4)
Power supply
Cooling
Heating
Cooling
Heating
kW
3.5
3.6
3.5
3.8
1
1
Hz
50
50
Centrifugal fan x1
Centrifugal fan x2
810/780/680/530
1200/1070/1000
SH/H/M/L
RPM
810/780/680/530
1200/1070/1000
SH/H/M/L
m3/hr
700/640/560/440
560/440/410
SH/H/M/L
Heating
External static pressure
220-240
RPM
Cooling
Air flow (1)
220-240
Ph
Fan type & quantity
Fan speeds
Flared
Units
V
INDOOR
Flared
Units
V
Fan speeds
AWSI-HKD018-N11
Min
Pa
0
25(0~40)
Sound power level (2)
SH/H/M/L
dB(A)
58
58
Sound pressure level(3)
SH/H/M/L
dB(A)
44/40/36
41/39/36
l/hr
1,5
1.5
Moisture removal
mm
ODФ16
ODΦ25
WxHxD
mm
700×600×210
700x210x635
kg
15
18
LxWxH
mm
810×305×710
915x655x290
Condensate drain tube I.D
Dimensions
Net Weight
Package dimensions
Packaged weight
Operation control type
General Information
kg
20
22.8
Remote control
Wired remote control
9
Product specification
AWSI-CBD012-N11
Model Indoor Unit
Installation Method of Pipe
Flared
Characteristics
Capacity (4)
Units
Cooling
kW
3.5
V
Power supply
1
Hz
50
Centrifugal fan x1
Cooling
SH/H/M/L
Heating
Air flow (1)
INDOOR
External static pressure
RPM
830/720/660
SH/H/M/L
RPM
830/720/660
SH/H/M/L
m3/hr
800/710/560
Min
Pa
0
Sound power level (2)
SH/H/M/L
dB(A)
55
Sound pressure level(3)
SH/H/M/L
dB(A)
44/41/38
l/hr
1.5
Moisture removal
Condensate drain tube I.D
Dimensions
mm
ODΦ25
WxHxD
mm
570x260x570
kg
16
LxWxH
mm
655x655x290
kg
19
WxHxD
mm
647x50x647
kg
2.5
LxWxH
mm
715x715x123
Net Weight
Package dimensions
Packaged weight
Frame dimensions
Frame net weight
Frame package dimensions
Frame packaged weight
Operation control type
10
3.5
220-240
Ph
Fan type & quantity
Fan speeds
Heating
kg
4.5
Remote control
General Information
Indoor Units
Part 2
Indoor Units
HKD Type .............................................................................12
HND Type .............................................................................22
Light Commercial................................................................33
Indoor Units
11
HKD Type
HKD Type
1. Function...........................................................................13
2. Dimensions......................................................................14
3. Wiring Diagrams .............................................................15
4. Exploded View and Spare Part list ................................16
12
Indoor Units
Function
1. Function
Filter
2 ways of drainage
Killer Of Formaldehyde
Louver Position Memory Function
Ionizer(O)
Refrigerant Leakage Detect
Silver Ico Filter(O)
Self-diag. Function
Vitamin C Filter(O)
Hydrophilic Aluminum Fin
3M HAM Filter(O)
PTC Heating Belt(O)
Bio Filter(O)
Golden Fin(O)
1W Standby
O: optional function
Indoor Units
13
Dimensions
2. Dimensions
H
D
W
Model
AWSI-HKD009-N11
AWSI-HKD012-N11
AWSI-HKD018-N11
14
W
800
800
940
D
188
188
205
Model
L(mm)
R(mm)
H(mm)
AWSI-HKD009-N11
AWSI-HKD012-N11
100
95
45
AWSI-HKD018-N11
110
100
45
H
275
275
275
Dimension of installation
hole(mm)
¢65
Indoor Units
Wiring Diagrams
3. Wiring Diagrams
AWSI-HKD009-N11, AWSI-HKD012-N11, AWSI-HKD018-N11
Indoor Units
15
Exploded View and Spare Part list
4. Exploded View and Spare Part list
Exploded View of indoor unit: AWSI-HKD009-N11
16
Indoor Units
Exploded View and Spare Part list
Spare part list of indoor unit: AWSI-HKD009-N11
No.
Part
Name
Qty
BOM Code
No.
Part
Name
Qty
BOM Code
Louver motor
1
202400200031
1
Panel assembly
1
2011325A5387
16.1
3
Display box assembly
1
2033325A2367
17
Pipe clamp board
1
201119900949
3.1
Display
assembly
1
2013330A0831
18
Installation plate
1
201232590037
4
Cover of
equipment
1
201119901024
19
Electronic control box
assembly
1
203332391198
5
Panel
assembly
1
201132591041
19.1
1
201132490125
5.1
Screw cap
2
201119900950
19.2
1
201132490150
6
Drain hose
1
201101020038
19.3
1
201332391780
7
Pipe Nut
1
201600320001
19.4
Ambient temperature
sensor assembly
1
202433190000
7
Pipe Nut
1
201600320000
19.5
Pipe
temperature
sensor assembly
1
202301300426
8
Fix
clamp
of
temperature sensor
1
201102000305
19.6
Wire joint
1
202301450119
9
Evaporator assembly
1
201532390220
20
Cover of electronic
control box
1
201132490126
10
Fan motor cover
1
201132490127
21
Remote Controller
1
203355091552
11
Asynchronous motor
1
202400400213
22
Seal ring
1
202720090001
12
Bearing holder
1
201119900952
23
Drain joint
1
201101020011
13
Bearing base
1
202719900606
24
Anti-bacterial filter
1
201131410703
14
Cross flow fan
1
201100200306
25
Air filter(left)
1
201132591042
15
Horizontal louver
1
201132591044
26
Air filter(right)
1
201132591040
16
Chassis assembly
1
201132591057
Nano
filter
1
201130100273
Indoor Units
board
electrical
frame
Electronic control box
I
Electronic control box
II
Indoor main control
board assembly
photocatalysis
17
Exploded View and Spare Part list
Exploded View of indoor unit: AWSI-HKD012-N11
18
Indoor Units
Exploded View and Spare Part list
Spare part list of indoor unit: AWSI-HKD012-N11
No.
Part
Name
Qty
BOM Code
No.
Part
Name
Qty
BOM Code
Louver motor
1
202400200031
1
Panel assembly
1
2011325A5387
16.1
3
Display box assembly
1
2033325A2367
17
Pipe clamp board
1
201119900949
3.1
Display
assembly
1
2013330A0831
18
Installation plate
1
201232590037
4
Cover of
equipment
1
201119901024
19
Electronic control box
assembly
1
203332490311
5
Panel
assembly
1
201132591041
19.1
1
201132490125
5.1
Screw cap
2
201119900950
19.2
1
201132490150
6
Drain hose
1
201101020038
19.3
1
201332490360
7
Pipe Nut
1
201600320001
19.4
1
202433190000
7
Pipe Nut
1
201600320000
19.5
1
202301300426
8
1
201102000305
19.6
Wire joint
1
202301450119
9
Fix
clamp
of
temperature sensor
Evaporator assembly
1
201532390220
20
Cover of electronic
control box
1
201132490126
10
Fan motor cover
1
201132490127
21
Remote Controller
1
203355091552
11
Brushless DC Motor
1
202400370025
22
Seal ring
1
202720090001
12
Bearing holder
1
201119900952
23
Drain joint
1
201101020011
13
Bearing base
1
202719900606
24
Anti-bacterial filter
1
201131410703
14
Cross flow fan
1
201100200306
25
Air filter(left)
1
201132591042
15
Horizontal louver
1
201132591044
26
Air filter(right)
1
201132591040
16
Chassis assembly
1
201132591057
Nano
filter
1
201130100273
Indoor Units
board
electrical
frame
Electronic control box
I
Electronic control box
II
Indoor main control
board assembly
Ambient temperature
sensor assembly
Pipe
temperature
sensor assembly
photocatalysis
19
Exploded View and Spare Part list
Exploded View of indoor unit: AWSI-HKD018-N11
20
Indoor Units
Exploded View and Spare Part list
Spare part list of indoor unit: AWSI-HKD018-N11
No.
Part
Name
Qty
BOM Code
No.
Part
Name
Qty
BOM Code
Chassis assembly
1
201132790680
Louver motor
1
202400200031
1
Panel assembly
1
2011327A4068
16
2
Air filter
2
201132790664
16.1
3
Display box assembly
1
2033325A2367
17
Pipe clamp board
1
201119900949
Display
assembly
Cover of
equipment
Panel
assembly
1
2013330A0831
18
Installation plate
1
201232790013
1
201119901024
19
1
203332890706
1
201132790667
19.1
1
201132490125
1
201132490150
1
201332890811
1
202433190000
3.1
4
5
board
electrical
frame
Electronic control box
assembly
Electronic control box
I
Electronic control box
II
Indoor main control
board assembly
Ambient temperature
sensor assembly
5.1
Screw cap
2
201119900950
19.2
6
Drain hose
1
201101020038
19.3
7
Pipe Nut
1
201600320002
19.4
7
Pipe Nut
1
201600320000
19.5
Pipe
temperature
sensor assembly
1
202301300426
8
Fix
clamp
of
temperature sensor
1
201102000305
19.6
Wire joint
1
202301450119
9
Evaporator assembly
1
201532890160
20
1
201132490126
10
Fan motor cover
1
201132790663
21
Cover of electronic
control box
Remote Controller
1
203355091552
11
Brushless DC Motor
1
202400300517
22
Seal ring
1
202720090001
12
Bearing holder
1
201119900952
23
Drain joint
1
201101020011
13
Bearing base
1
202719900606
24
Anti-bacterial filter
1
201131410703
14
Cross flow fan
1
201100200322
Nano
filter
1
201130100273
15
Horizontal louver
1
201132790665
Indoor Units
photocatalysis
21
HND Type
HND Type
1. Function...........................................................................23
2. Dimensions......................................................................24
3. Wiring Diagrams .............................................................26
4. Exploded View and Spare Part list ................................27
22
Indoor Units
Function
1. Function
Ionizer(O)
Silent mode(O)
Plasma(O)
Horizontal &Vertical Swing Function(O)
Silver Ico Filter(O)
Louver Position Memory Function
Vitamin C Filter(O)
Refrigerant Leakage Detect
3M HAM Filter(O)
Self-diag. Function
Bio Filter(O)
Hydrophilic Aluminum Fin
Golden Fin(O)
Filter
Self Clean(O)
Cold catalyst filter
Follow Me(O)
1W Standby
O: optional function
Indoor Units
23
Dimensions
2. Dimensions
W
Model
AWSI-HND009-N11
AWSI-HND012-N11
AWSI-HND018-N11
24
D
W
750
835
990
D
198
198
218
H
280
280
315
Indoor Units
Dimensions
Model
L(mm)
R(mm)
H(mm)
Dimension of installation
hole(mm)
AWSI-HND009-N11
180
140
110
110
45
45
¢65
Model
L(mm)
R(mm)
H(mm)
AWSI-HND018-N11
260
135
45
AWSI-HND012-N11
Indoor Units
Dimension of installation
hole(mm)
¢65
25
Wiring Diagrams
3. Wiring Diagrams
AWSI-HND009-N11, AWSI-HND012-N11
AWSI-HND018-N11
26
Indoor Units
Exploded View and Spare Part list
4. Exploded View and Spare Part list
Exploded View of indoor unit: AWSI-HND009-N11
Indoor Units
27
Exploded View and Spare Part list
Spare part list of indoor unit: AWSI-HND009-N11
No.
Name
Qty
BOM Code
No.
Part
Name
Qty
BOM Code
Chassis assembly
1
201132391058
Louver motor
1
202400200031
1
Panel assembly
1
2011323A3829
16
2
Air filter
2
201132391052
16.1
3
Display box assembly
1
2033323A2544
17
Pipe clamp board
1
201119900949
Display
assembly
1
2013330A0830
18
Installation plate
1
201232590037
1
201119901024
19
1
2033323A2552
1
201132392602
19.1
1
201132490125
1
201132490150
3.1
4
5
28
Part
Cover of
equipment
Panel
assembly
board
electrical
frame
Electronic control box
assembly
Electronic control box
I
Electronic control box
II
5.1
Screw cap
2
201119900950
19.2
6
Drain hose
1
201101020038
19.3
Indoor main control
board assembly
1
2013323A1827
7
Pipe nut
1
201600320001
19.4
Ambient temperature
sensor assembly
1
202433190000
7
Pipe nut
1
201600320000
19.5
Pipe
temperature
sensor assembly
1
202301300426
8
Fix
clamp
of
temperature sensor
1
201102000305
19.6
Wire joint
1
202301450119
9
Evaporator assembly
1
201532390212
20
Cover of electronic
control box
1
201132490126
10
Fan motor cover
1
201132490127
21
Remote Controller
1
203355091552
11
Brushless DC Motor
1
202400370025
22
Seal ring
1
202720090001
12
Bearing holder
1
201119900952
23
Drain joint
1
201101020011
13
Bearing base
1
202719900606
24
Anti-bacterial filter
1
201131410703
14
Cross flow fan
1
201100200055
Nano
filter
1
201130100273
15
Horizontal louver
1
201132391053
ESF
1
202319900113
photocatalysis
Indoor Units
Exploded View and Spare Part list
Exploded View of indoor unit: AWSI-HND012-N11
Indoor Units
29
Exploded View and Spare Part list
Spare part list of indoor unit: AWSI-HND012-N11
No.
Name
Qty
BOM Code
No.
Part
Name
Qty
BOM Code
Chassis assembly
1
201132590963
Louver motor
1
202400200031
1
Panel assembly
1
2011325A5384
16
2
Air filter
2
201132590962
16.1
3
Display box assembly
1
2033323A2544
17
Pipe clamp board
1
201119900949
Display
assembly
1
2013330A0830
18
Installation plate
1
201232590037
1
201119901024
19
1
2033325A2373
1
201132591059
19.1
1
201132490125
1
201132490150
1
2013325A1249
1
202433190000
3.1
4
5
30
Part
Cover of
equipment
Panel
assembly
board
electrical
frame
Electronic control box
assembly
Electronic control box
I
Electronic control box
II
Indoor main control
board assembly
Ambient temperature
sensor assembly
5.1
Screw cap
2
201119900950
19.2
6
Drain hose
1
201101020038
19.3
7
Pipe nut
1
201600320001
19.4
7
Pipe nut
1
201600320000
19.5
Pipe
temperature
sensor assembly
1
202301300426
8
Fix
clamp
of
temperature sensor
1
201102000305
19.6
Wire joint
1
202301450119
9
Evaporator assembly
1
201532590453
20
1
201132490126
10
Fan motor cover
1
201132490127
21
Cover of electronic
control box
Remote Controller
1
203355091552
11
Brushless DC Motor
1
202400370025
22
Seal ring
1
202720090001
12
Bearing holder
1
201119900952
23
Drain joint
1
201101020011
13
Bearing base
1
202719900606
24
Anti-bacterial filter
1
201131410703
14
Cross flow fan
1
201100200054
Nano
filter
1
201130100273
15
Horizontal louver
1
201132590956
ESF
1
202319900113
photocatalysis
Indoor Units
Exploded View and Spare Part list
Exploded View of indoor unit: AWSI-HND018-N11
Indoor Units
31
Exploded View and Spare Part list
Spare part list of indoor unit: AWSI-HND018-N11
No.
Name
Qty
BOM Code
No.
Part
Name
Qty
BOM Code
1
Panel assembly
1
2011328A2355
16
Bearing base
1
202719900606
2
Air filter
2
201132890670
17
Cross flow fan
1
201100200056
3
Display box assembly
1
2033327A0877
18
Chassis assembly
1
201132890703
Display
assembly
1
2013330A0830
19
Pipe clamp board
1
201232800103
1
201133091048
20
Installation plate
1
201232590038
1
201132890673
21
Electronic control box
assembly
1
2033328A0969
Screw cap
3
201119900950
21.1
Wire joint
1
202301450120
6
Horizontal louver
1
201132890671
21.1
Wire joint
1
202301450119
7
Air outlet assembly
1
2011328A1649
21.2
Electronic control box
1
201133090976
Louver motor
1
202400200120
21.3
1
2013328A0727
8
Drain hose
1
201101020038
21.5
1
202432390005
9
Pipe nut
1
201600320000
21.6
1
202301300584
9
Pipe nut
201600320002
21.7
Cover of electronic
control box
1
201133090981
10
Fix
clamp
of
temperature sensor
1
201102000305
23
Remote Controller
1
203355091552
11
Evaporator assembly
1
201532890153
24
Seal ring
1
202720090001
12
Fan motor cover
1
201133090980
25
Drain joint
1
201101020011
13
Fixing board of fan
motor
1
201133090167
26
Anti-bacterial filter
1
201131410703
14
Brushless DC Motor
1
202400300064
Nano
filter
1
201130100273
15
Bearing holder
1
201119900952
ESF
1
202319900113
3.1
4
5
5.1
7.1
32
Part
Cover of
equipment
Panel
assembly
board
electrical
frame
1
Indoor main control
board assembly
Ambient temperature
sensor assembly
Pipe
temperature
sensor assembly
photocatalysis
Indoor Units
Light Commercial
Light Commercial
1. Features ...........................................................................34
2. Dimensions......................................................................40
3. Service Space(unit:mm) .................................................42
4. Wiring Diagrams .............................................................44
5. Exploded View and Spare Part list ................................47
Indoor Units
33
Features
1. Features
1.1 Four-way cassette type(compact)
⑴ New panel

360°surrounding air outlet design, affords comfortable feeling
⑵ Compact design
 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.
 The hooks are designed in the four corners of the body, which can save installation space.
⑶ Electric control box built-in design
 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.
⑷ Fresh air intake function:
 Fresh air fulfills air quality more healthy and comfortable.
34
Indoor Units
Features
Fresh
Air
Dimension:Φ75mm
⑸ Air passage function
 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.
Light Commercial
35
Features
1.2 A5 Duct
⑴ Installation accessories: (Optional)

Front Board, Canvas Air Passage, Filter, Panel, for easy installation
Front Board
Canvas Air Passage
Filter
Panel
⑵ Easy Installation: Two air inlet styles (Bottom side or Rear side)
 Air inlet from rear is standard for all capacity; air inlet from bottom is optional.
 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)
⑶ Fresh air intake function
 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.
⑷ Easy maintenance
 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.
36
Indoor Units
Features

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
⑸ Reserved remote on-off and central control ports
 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
⑹ Built-in drain pump (Optional):
 Built-in drain pump can lift the water to 750mm upmost. It’s convenient to install drainage piping under
most space condition.
Light Commercial
37
750mm upmost
Features
⑺ Built-in display board



The standard indoor unit can be controlled by wired controller.
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.
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
38
Indoor Units
Features
1.3 Console
(1) Consumes up to 30% less energy than non-inverter units
——DC inverter compressor
——indoor fan motor adopts DC motor
(2) Achieves set temperature more quickly
——air supplying from top and bottom or from top only
——air inlet from four directions
(3) Compact unit body, space saving
——this unit body is very thin and harmonious with room. It is beautiful, elegant and space saving.
——lightweight and compact.
(4) Flexible installation.
——can be used for floor standing or lower wall applications
——as a floor standing floor model, it can be semi or fully recessed without loss of capacity.
(5) High efficiency filter
——built in Formaldehyde nemesis filter
——active-carbon and biological anti-virus filter is optional.
(6) Comfort
——flexible air blow: vertical auto swing and wide angle louvers ensure that warm air reaches the furthest
corners of the room and increase the air flow coverage
——Low noise operation, lowest to 23Db
——Low starting power and precise room temperature adjustment
(7) Powerful mode can be selected for rapid cooling or heating.
(8) Easy cleaning grille and maintenance
(9) Indoor unit adopts DC motor, it has five level fan speed meet different requirements.
Light Commercial
39
Dimensions
2. Dimensions
2.1
Four-way cassette type(compact):
B
H
G
2.2 A5 Duct
D
C
F
A
M
E
L
40
Indoor Units
Dimensions
Model
AWSI-DCD012-N11
Outline dimension(mm)
Air outlet opening size
Air return opening size
A
B
C
D
E
F
G
H
I
J
K
700
210
635
570
65
493
35
119
595
200
80
Size of outline dimension
mounted plug
L
M
740
350
2.3 Console
Light Commercial
41
Service Space(unit:mm)
3. Service Space(unit:mm)
3.1 Four-way cassette(compact)
3.2 A5 Duct
Ensure enough space required for installation and maintenance.
All the indoor units reserve the hole to joint the fresh air pipe. The hole size as following:
42
Indoor Units
Service Space(unit:mm)
3.3 Console
Light Commercial
43
Wiring Diagrams
4. Wiring Diagrams
AWSI-CBD012-N11
AWSI-DCD012-N11
44
Indoor Units
Wiring Diagrams
AWSI-DCD012-N11
Light Commercial
45
Wiring Diagrams
AWSI-XAD012-N11
46
Indoor Units
Exploded View and Spare Part list
5. Exploded View and Spare Part list
Exploded View of indoor unit:AWSI-CBD012-N11
Light Commercial
47
Exploded View and Spare Part list
Spare part list of indoor unit:AWSI-CBD012-N11
No.
Qty
BOM Code
No.
Part
Qty
BOM Code
Panel
1
2011099A2555
14
Ventilation ring
1
201142390003
1.1
Display box assembly
1
203342090008
15
Centrifugal fan
1
201100100804
1.2
Horizontal louver
4
201109991797
16
Asynchronous motor
1
202400300052
1.3
Air filter
1
P0000453127
17
Fan motor fixing base
1
201280490338
1.4
Louver motor
1
202400280001
18
Water level switch
1
202301800916
2
Water collector
1
202280490006
19
Evaporator
board
1
201280490337
3
Wire box
1
201180490047
20
1
201180490049
4
Evaporator assembly
1
201552390007
21
1
201180490041
4.1
Evaporator
1
201542390002
22
Drain pump
1
202400600005
4.2
Copper nut
1
201600320001
23
Drain pipe
1
202742390002
4.3
Output pipe assembly
1
201652390020
24
Drain connecting pipe
1
201101030002
4.4
Input pipe assembly
1
201642390001
25
Cover of electronic
control box
1
201280490491
201600320000
26
Electronic control box
assembly
1
203342390100
1
202301300445
26.1
Electronic control box
1
201180490043
1
201280490336
26.2
Main control
assembly
1
201342390100
1
202280490005
26.5
Insulation plate
1
201280490471
1
201180490044
1
Part
Name
1
4.4.1
4.5
5
6
48
Copper nut
Pipe
temperature
sensor assembly
Evaporator
hang
board
Base foam assembly
Name
fixing
Drain
pump
installation base
Guard against block
up net
board
7
Chassis assembly
1
201242390003
26.6
Installation
terminal
8
Hook II
1
201280490483
26.7
Wire joint
1
202301450119
9
Hook I
1
201280490482
26.8
Clip
3
201180490045
10
Hook Ⅳ
1
201280490485
29
1
202301310075
11
Hook III
1
201280490484
30
Ambient temperature
sensor assembly
Rubber guard bush
1
202780490007
12
Pipe fixing
assembly
1
201142390001
31
Remote controller
1
203355091552
board
base
of
Indoor Units
Exploded View and Spare Part list
Exploded View of indoor unit: AWSI-DCD012-N11
Light Commercial
49
Exploded View and Spare Part list
Spare part list of indoor unit: AWSI-DCD012-N11
No.
Part
Name
Qty
BOM Code
No.
Part
Name
Qt
y
BOM Code
1
Chassis assembly
1
201285190007
14
Pipe
temperature
sensor assembly
1
202440500004
2
Up volute shell
2
201185190001
15
Water collector
1
202285190003
3
Centrifugal fan
2
201100100809
16
Right
assembly
1
201270290089
4
Below volute shell
2
201185190002
16.1
Hook
2
201270890021
5
Fan motor axes clamp (left)
1
201280200005
17
Electronic control box
assembly
1
203370190015
6
Fan motor fixing board
1
201252490002
17.1
Electronic control box
1
201270290163
7
Fan motor
(right)
1
201280200006
17.3
Wire joint
1
202301450003
8
Asynchronous motor
1
202400300053
17.6
1
202301310075
9
Supporter of fan motor
1
201252290005
17.7
1
201352290020
10
Middle beam assembly
1
201285190002
18
1
201270290081
11
Left clapboard assembly
1
201270290091
19
1
201270290082
Hook
2
201270890021
20
1
203370190008
201552290012
20.1
1
201370290012
11.1
axes
clamp
1
clapboard
Ambient temperature
sensor assembly
Main control board
assembly
Cover of electronic
control box
Pipe clamp board
assembly
Display box assembly
Display
assembly
board
12
Evaporator assembly
12.2
Output pipe assembly
1
201652290013
21
Wired controller
1
2033551A2826
12.3
Copper nut
1
201600320001
22
Rear beam
1
201285190003
12.4
Input pipe assembly
1
201670190020
23
Rear cover assembly
1
201285190004
Copper nut
1
201600320000
24
Top cover assembly
1
201285190008
1
201270290034
12.4.1
13
50
Evaporator right
board assembly
support
Indoor Units
Exploded View and Spare Part list
Exploded View of indoor unit:AWSI-XAD012-N11
Light Commercial
51
Exploded View and Spare Part list
Spare part list of indoor unit:AWSI-XAD012-N11
No.
Name
Qty
BOM Code
No.
Part
Name
Main control board
assembly
Fixing
board
of
electronic control box
I
Auxiliary
electric
heater control board
Qty
BOM Code
1
2013440A0029
1
201244090004
1
201344090029
1
Panel assembly
1
2011440A0001
9.10
2
Air filter
1
201144090002
9.11
3
Panel
assembly
1
201144090022
9.14
4
Evaporator assembly
1
201544090014
10
Water collector
1
201144090044
4.1
Pipe
temperature
sensor assembly
1
202301310085
10.1
Louver motor
1
202400200052
5
Ventilation assembly
1
201144090030
10.2
Underside louver
1
P0000281380
6
Chassis assembly
1
201144090016
11
Air outlet assembly
1
201144090042
Hang board assembly
1
201244090009
11.1
Louver motor
1
202400200053
7
Anti-bacterial filter
2
201131410703
11.2
Rear net
1
201244090008
8
Bracket of air filter
Electronic control box
assembly
Installation plate of
electric parts I
2
201132200713
11.3
Up louver
1
P0000283050
1
2033440A0034
13
Pipe clamp
1
201144090011
1
201144090009
14
Installation clamp
2
201244290015
201144090010
15
Remote controller
1
203355091552
1
201244090003
17
Insulation washer
1
201144090005
1
202301310072
18
Cover of electronic
control box
1
201244090001
6.1
9
9.1
9.2
9.3
9.4
52
Part
frame
Electrical control box
Fixing
board
of
electronic control box
II
Ambient temperature
sensor assembly
1
9.5
Wire joint
1
202301400072
19
Centrifugal fan
1
201100100020
9.7
Electronic control box
seal plate
1
201244090002
20
Fan motor
1
202400300014
9.8
Installation plate
electric parts
1
201144090008
21
Supporter assembly
of fan motor
1
201244090005
9.9
Display
assembly
1
201344090004
of
board
Indoor Units
Outdoor Units
Part 3
Outdoor Units
1. Dimensions ......................................................................54
2. Service Space ..................................................................58
3. Refrigeration Cycle Diagram..........................................59
4. Wiring Diagrams .............................................................61
5. Indoor units combination ...............................................63
6. Operation Limits..............................................................64
7. Sound Levels ...................................................................65
8. Exploded View and Spare Part list ................................66
Outdoor Units
53
Dimensions
1. Dimensions
AWSI-XAD012-N11
243.6
200.7
L2
H
6
700
L1
D1 335
560 W1
D2 360
845 W
110
B1
120
D1
54
58 58 58
H1
110
H2
335
313
D3
B2
W2
73
A2
50
R6
A1
22
R5
Outdoor Units
Dimensions
AWAU-YCZ327-H11
L2
H
8
12
860
L1
285.7
238.4
D1 333
590 W1
D2 355
900 W
B1
97
D1
333
90
B2
110
55 55 55 55 55
302
D3
Outdoor Units
W2
62
H1
A2
50
R6
H2
55
Dimensions
AWAU-YCZ430-H11
238.4
285.7
H
8
D1 333
590 W1
D2 355
900 W
55 55 55 55 55 55 55
H1
110
H2
W2
62
B1
97
D1
333
90
B2
302
D3
56
L2
12
860
L1
A2
50
R6
Outdoor Units
Dimensions
AWAU-YCZ536-H11
Outdoor Units
57
Service Space
2. Service Space
(Wall or obstacle)
Air inlet
More than 30cm
Air inlet
More than 60cm
Maintain channel
More than 60cm
Air outlet
58
More than 30cm
More than 200cm
Outdoor Units
Refrigeration Cycle Diagram
3. Refrigeration Cycle Diagram
3.1 Refrigeration cycle diagram of inverter 1 drive 2 type
INDOOR
OUTDOOR
LIQUID VALVE A
EXV A CAPILIARY A
CHECK VALVE
LIQUID VALVE B
EXV B CAPILIARY B
CAPILIARY TUBE
HEAT
EXCHANGE
(EVAPORATOR)
T4 Ambient
temp. sensor
T1 Room
temp. sensor
T3
Condenser
temp. sensor
HEAT
EXCHANGE
(CONDENSER)
T2B-A Evaporator
T2 Evaporator
temp. sensor
middle
GAS VALVE A
temp. sensor outlet
4-WAY VALVE
GAS VALVE B
T2B-B
Accumulator
T5 Discharge
temp. sensor
COOLING
Compressor
HEATING
3.2 Refrigeration cycle diagram of inverter 1 drive 3 type
INDOOR
OUTDOOR
LIQUID VALVE A
LIQUID VALVE B
LIQUID VALVE C
EXV A CAPILIARY A
EXV B CAPILIARY B
CHECK VALVE
EXV C CAPILIARY C
CAPILIARY TUBE
HEAT
EXCHANGE
(EVAPORATOR)
T4 Ambient
temp. sensor
T1 Room
temp. sensor
T3
Condenser
temp. sensor
HEAT
EXCHANGE
(CONDENSER)
T2B-A Evaporator
T2 Evaporator
temp. sensor
middle
GAS VALVE A
GAS VALVE B
GAS VALVE C
temp. sensor outlet
T2B-B
4-WAY VALVE
T2B-C
Accumulator
T5 Discharge
temp. sensor
Compressor
COOLING
HEATING
3.3 Refrigeration cycle diagram of inverter 1 drive 4 type
Outdoor Units
59
Refrigeration Cycle Diagram
INDOOR
OUTDOOR
EXV A CAPILIARY A
LIQUID VALVE A
EXV B CAPILIARY B
LIQUID VALVE B
CHECK VALVE
EXV C CAPILIARY C
LIQUID VALVE C
EXV D CAPILIARY D
LIQUID VALVE D
HEAT
EXCHANGE
(EVAPORATOR)
CAPILIARY TUBE
T4 Ambient
temp. sensor
T1 Room
temp. sensor
T3
Condenser
temp. sensor
HEAT
EXCHANGE
(CONDENSER)
T2B-A Evaporator
temp. sensor outlet
GAS VALVE A
T2 Evaporator
temp. sensor
middle
T2B-B
GAS VALVE B
T2B-C
GAS VALVE C
4-WAY VALVE
Accumulator
High pressure
switch
T2B-D
GAS VALVE D
T5 Discharge
temp. sensor
Low pressure
switch
COOLING
HEATING
Compressor
3.4 Refrigeration cycle diagram of inverter 1 drive 5 type
INDOOR
OUTDOOR
LIQUID VALVE A
LIQUID VALVE B
LIQUID VALVE C
LIQUID VALVE D
EXV A CAPILIARY A
EXV B CAPILIARY B
EXV C CAPILIARY C
CHECK VALVE
EXV D CAPILIARY D
CAPILIARY TUBE
LIQUID VALVE E
HEAT
EXCHANGE
(EVAPORATOR)
EXV E CAPILIARY E
T1 Room
temp. sensor
T4 Ambient
temp. sensor
T2B-A Evaporator
GAS VALVE A
T2 Evaporator
temp. sensor
middle
T3
Condenser
temp. sensor
HEAT
EXCHANGE
(CONDENSER)
temp. sensor outlet
GAS VALVE B
T2B-B
GAS VALVE C
T2B-C
4-WAY VALVE
Accumulator
GAS VALVE D
T2B-D
GAS VALVE E
T2B-E
High pressure
switch
Low pressure
switch
COOLING
HEATING
T5 Discharge
temp. sensor
Compressor
60
Outdoor Units
Wiring Diagrams
4. Wiring Diagrams
AWAU-YCZ218-H11
AWAU-YCZ327-H11
Outdoor Units
61
Wiring Diagrams
AWAU-YCZ430-H11
AWAU-YCZ536-H11
62
Outdoor Units
Indoor units combination
5. Indoor units combination
5.1 Indoor unit combination for AWAU-YCZ218-H11
AWAU-YCZ218-H11
Two IDU
9+9
9+12
9+18
12+12
5.2 Indoor unit combination for AWAU-YCZ327-H11
AWAU-YCZ327-H11
Three IDU
9+9+9
9+12+12
9+9+12
9+12+18
9+9+18
12+12+12
Two IDU
9+18
12+18
18+18
5.3 Indoor unit combination for AWAU-YCZ430-H11
AWAU-YCZ430-H11
Three IDU
9+9+9
9+12+12
9+9+12
9+12+18
9+9+18
12+12+12
Two IDU
9+18
12+18
18+18
Four IDU
9+9+9+9
9+9+9+12
5.4 Indoor unit combination for AWAU-YCZ536-H11
Two IDU
18+18
Three IDU
9+9+18
12+12+12
9+12+12 12+12+18
9+12+18 12+18+18
9+18+18 18+18+18
Outdoor Units
AWAU-YCZ536-H11
Four IDU
Five IDU
9+9+9+9
9+9+12+12
9+12+12+18
9+9+9+9+9
9+9+9+12+18
9+9+9+12 9+9+12+18 12+12+12+12 9+9+9+9+12
9+9+12+12+12
9+9+9+18 9+9+18+18 12+12+12+18 9+9+9+9+18 9+12+12+12+12
9+12+12+12
9+9+9+12+12 12+12+12+12+12
63
Operation Limits
6. Operation Limits
Temperature
Mode
Room temperature
Cooling operation
Heating operation
≥17℃
≤30℃
0℃~50℃
Outdoor temperature
-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.
64
Outdoor Units
Sound Levels
7. Sound Levels
Outdoor Unit
Microphone
H
1.0m
Note: H= 0.5 × height of outdoor unit
Model
Noise Power dB(A)
Noise level dB(A)
AWAU-YCZ218-H11
65
60
AWAU-YCZ327-H11
68
61
AWAU-YCZ430-H11
70
62
AWAU-YCZ536-H11
70
64
Outdoor Units
65
Exploded View and Spare Part list
8. Exploded View and Spare Part list
Exploded View of outdoor unit: AWAU-YCZ218-H11
66
Outdoor Units
Exploded View and Spare Part list
Spare part list of outdoor unit: AWAU-YCZ218-H11
No.
Part
Name
Qty
BOM Code
No.
Part
Name
BOM Code
1
201257190118
1
203357090061
1
Ambient temperature
sensor assembly
1
202301310075
19
2
Rear net
1
2011481G0001
20
3
Condenser assembly
1
201537990084
20.1
Cover of electronic
control box
1
201157190011
3.1
Input pipe assembly
1
201637991011
20.2
Outdoor main control
board assembly
1
201357090064
3.2
Condenser
1
201537990003
20.3
1
201357190108
3.3
Output pipe
1
201637991010
20.4
1
201157190010
4
Pipe
temperature
sensor assembly
1
202301300423
20.5
Radiator
1
202301901173
4
Pipe
temperature
sensor assembly
1
202440500004
21
Terminal
assembly
1
203357090057
5
Valve plate
1
201257190109
21.1
Wire joint
1
202301450157
6
Chassis assembly
1
201257090054
21.2
Terminal board
1
201257190117
7
Rear right clapboard
assembly
1
201257190099
22
Liquid valve assembly
1
201657090490
9
Water collector
1
201157090005
22.1
Liquid valve
2
201600740097
10
Front right clapboard
assembly
1
201248100389
22.2
Electronic expansion
valve assembly
2
201601300554
11
Front panel
1
201248100390
23
4-ways
assembly
1
201657090491
12
Air outlet grille
1
2011379A0005
23.1
Gas valve
2
201600720091
Round sticker of air
outlet grille
1
2011374A0005
23.2
4-ways valve
1
201600690011
13
Axial flow fan
1
201100300553
24
Compressor
1
201400600530
14
Brushless DC Motor
1
202400300535
26
Discharge
temperature
assembly
1
202448200000
15
Supporter assembly
of fan motor
1
201257090067
27
Cover of inductance
1
201248090001
16
Rear supporter
1
201248100384
28
Reactor
1
202301000943
17
Top cover assembly
1
201257190097
29
Copper nut
2
201600320000
18
Left supporter
1
201248100367
19
Partition
assembly
1
201257190118
Outdoor Units
Partition
board
assembly
Electronic control box
assembly
Qty
Inverter control board
assembly
Installation plate of
electric parts
board
valve
sensor
board
67
Exploded View and Spare Part list
Exploded View of outdoor unit: AWAU-YCZ327-H11
68
Outdoor Units
Exploded View and Spare Part list
Spare part list of outdoor unit: AWAU-YCZ327-H11
No.
Part
Name
Qty
BOM Code
No.
Part
Name
Qty
BOM Code
1
202301901173
1
203357190096
1
Ambient temperature
sensor assembly
1
202301310075
20.5
Radiator
2
Rear net
1
2011482G0001
21
Terminal
assembly
3
Condenser assembly
1
201557190037
21.1
Wire joint
2
202301450156
4
Pipe
temperature
sensor assembly
1
202301300422
21.2
Terminal board
1
201257190120
4
Pipe
temperature
sensor assembly
1
202301300111
22
Liquid valve assembly
1
201657190352
5
Valve plate
1
201257190111
22.1
Liquid valve
1
201600740091
6
Chassis assembly
1
201257190085
22.2
Electronic expansion
valve assembly
1
201601300554
7
Rear right clapboard
assembly
1
201257190095
23
Liquid valve assembly
1
201657390002
9
Water collector
1
201157390003
23.1
Liquid valve
1
201600740091
10
Front right clapboard
assembly
1
201248200082
23.2
Electronic expansion
valve assembly
1
201601300554
11
Front panel
1
201248200103
24
Liquid valve assembly
1
201657390000
12
Air outlet grille
1
2011482A0001
24.1
Liquid valve
1
201600740091
Round sticker of air
outlet grille
1
2011374A0005
24.2
1
201601300554
13
Axial flow fan
1
201100300527
25
1
201657190430
14
Brushless DC Motor
1
202400300047
25.1
Gas valve
3
201600720091
15
Supporter assembly
of fan motor
1
201257190071
25.2
4-ways valve
1
201600600119
16
Rear supporter
1
201248200095
26
Capillary assembly
1
201657190429
17
Top cover assembly
1
201248300309
27
Compressor
1
201400601740
18
Left supporter
1
201248400036
29
Discharge
temperature
assembly
1
202448200000
19
Partition
assembly
1
201257190115
30
Cover of inductance
1
201248390003
20
Electronic control box
assembly
1
203357190095
31
Reactor
1
202301000950
20.1
Cover of electronic
control box
1
201157190011
31
Reactor
1
202301000943
20.2
Outdoor main control
board assembly
1
201357190096
32
Handle
2
201148700009
20.3
Inverter control board
assembly
1
201357190085
33
Accumulator cylinder
1
201601000620
20.4
Electronic
box
1
201157190010
Outdoor Units
board
installing
board
Electronic expansion
valve assembly
4-ways
valve
assembly
sensor
69
Exploded View and Spare Part list
Exploded View of outdoor unit: AWAU-YCZ430-H11
70
Outdoor Units
Exploded View and Spare Part list
Spare part list of outdoor unit: AWAU-YCZ430-H11
No.
Part
Name
Qty
BOM Code
No.
Part
Name
Qty
BOM Code
Terminal board
1
201257190120
Liquid valve assembly
1
201657190352
1
Ambient temperature
sensor assembly
1
202301310069
21.2
2
Rear net
1
2011482G0001
22
3
Condenser assembly
1
201557190037
22.1
Liquid valve
1
201600740091
1
202301300421
22.2
Electronic expansion
valve assembly
1
201601300554
1
202301300111
23
Liquid valve assembly
1
201657390002
4
4
Pipe
temperature
sensor assembly
Pipe
temperature
sensor assembly
5
Valve plate
1
201257190111
23.1
Liquid valve
1
201600740091
6
Chassis assembly
1
201257190085
23.2
Electronic expansion
valve assembly
1
201601300554
7
Rear right clapboard
assembly
1
201257190095
24
Liquid valve assembly
1
201657390000
9
Water collector
1
201157390003
24.1
Liquid valve
1
201600740091
10
Front right clapboard
assembly
1
201248200082
24.2
Electronic expansion
valve assembly
1
201601300554
11
Front panel
1
201248200103
25
4-ways
assembly
1
201657190356
12
Air outlet grille
1
2011482A0001
25.1
Gas valve
4
201600720091
2011374A0005
25.2
4-ways valve
1
201600600119
Round sticker of air
outlet grille
1
valve
13
Axial flow fan
1
201100300527
26
Capillary assembly
1
201657390066
14
Brushless DC Motor
1
202400300047
27
Compressor
1
201400601740
15
Supporter assembly
of fan motor
1
201257190071
29
1
202448200000
16
Rear supporter
1
201248200095
30
Discharge
temperature sensor
assembly
Cover of inductance
1
201248390003
17
Top cover assembly
1
201248300309
31
Reactor
1
202301000950
18
Left supporter
1
201248400036
31
Reactor
1
202301000943
19
Partition
assembly
1
201257190115
32
Handle
2
201148700009
20
Electronic control box
assembly
1
203357190102
33
Accumulator cylinder
1
201601000620
1
201157190011
36
Liquid valve assembly
1
201657390050
1
201357190105
36.1
Liquid valve
1
201600740091
1
201357190085
36.2
Electronic expansion
valve assembly
1
201601300554
1
201157190010
37
Suction
assembly
1
201657190354
1
202301901173
37.1
Pressure switch
1
202301820021
1
203357190086
21.2
Terminal board
1
201257190120
22
Liquid valve assembly
1
201657190352
20.1
20.2
20.3
board
Cover of electronic
control box
Outdoor main control
board assembly
Inverter control board
assembly
20.4
Installation plate
electric parts
20.5
Radiator
21
Terminal
assembly
21.1
Wire joint
1
202301450157
21.1
Wire joint
1
202301450156
Outdoor Units
of
board
pipe
71
Exploded View and Spare Part list
Exploded View of outdoor unit: AWAU-YCZ536-H11
72
Outdoor Units
Exploded View and Spare Part list
Spare part list of outdoor unit: AWAU-YCZ536-H11
No.
Part
Name
Qty
BOM Code
No.
1
Rear net
1
2011487G0001
21.7
2
Ambient temperature
sensor assembly
1
202301310075
21.8
3
Condenser assembly
1
201557190043
22
Part
Name
Electronic
installing
box assembly
Active PFC Module
Subassembly
Compressor
Qty
BOM Code
1
201257190055
1
201319901145
1
201401500220
1
202448200000
1
201657190376
3.1
Input pipe assembly
1
201657290044
24
3.2
Condenser
1
201557190044
25
3.2
Condenser
1
201557190045
25.1
Discharge
temperature
assembly
4-Ways
assembly
Gas valve
5
201600720091
3.3
Output pipe
Pipe
temperature
sensor assembly
Pipe
temperature
sensor assembly
Big handle
1
201657290037
25.2
4-Ways valve
1
201600600124
1
202301300496
25.3
Pressure switch
1
202301820042
1
202301300111
26
liquid valve assembly
1
201657290018
1
201157190005
26.1
Liquid valve
1
201600740091
4
4
5
sensor
valve
6
Rear right clapboard
assembly
1
201257190091
26.2
Electronic expansion
valve assembly
1
201601300554
8
Valve plate
1
201257190107
27
liquid valve assembly
1
201657290020
9
Chassis assembly
1
201275590093
27.1
Liquid valve
1
201600740091
10
Front right clapboard
assembly
1
201248700056
27.2
Electronic expansion
valve assembly
1
201601300554
11
Air outlet grille
1
2011487A0003
28
liquid valve assembly
1
201657290021
Round sticker of air
outlet grille
1
2011374A0005
28.1
Liquid valve
1
201600740091
12
Front panel
1
201248700072
28.2
Electronic expansion
valve assembly
1
201601300554
13
Rear supporter
1
2012487G0011
29
liquid valve assembly
1
201657190373
14
Top cover assembly
1
201257190096
29.1
Liquid valve
1
201600740091
15
Axial flow fan
1
201100320624
29.2
Electronic expansion
valve assembly
1
201601300554
16
Brushless DC Motor
1
202400300051
30
Suction
assembly
1
201657290026
1
201275590219
30.1
Pressure switch
1
202301820021
1
201248700262
31
Capillary assembly
1
201657190362
1
201257290010
32
Accumulator cylinder
1
201601000074
1
201245000901
17
18
19
Supporter assembly
of fan motor
Left supporter
Partition
board
assembly
pipe
21
Electronic control box
assembly
1
203357190105
33
Fix
clamp
segregator
21.1
Inverter control board
assembly
1
201357190031
34
PFC Inductor
1
202301000523
21.2
Rectifier bridge
1
202300500328
35
Magnetic Loop
1
202301000020
1
201357190113
37
liquid valve assembly
1
201657190371
1
201157190004
37.1
Liquid valve
1
201600740091
Electronic expansion
valve assembly
1
201601300554
21.3
21.4
Outdoor main control
board assembly
Installation plate of
electric parts
of
21.5
Wire joint
1
202301450122
37.2
21.5
Wire joint
2
202301450157
38
Cover of inductance
1
201248090001
21.6
Radiator
1
202301901085
39
Reactor
1
202301000943
Outdoor Units
73
Installation
Part 4
Installation
1.Wrench torque sheet for installation ...................................................75
2.Connecting the cables ..........................................................................75
3.Pipe length and the elevation ...............................................................75
4 Installation for the first time .................................................................77
5 Adding the refrigerant after running the system for many years .....80
6 Re-installation while the indoor unit need to be repaired .................81
7 Re-installation while the outdoor unit need to be repaired ...............83
74
Installation
Wrench torque sheet for installation
1. Wrench torque sheet for installation
Outside diameter
Torque
Additional tightening torque
mm
N.cm
N.cm
Ф6.35
1500(153kgf.cm)
1600(163kgf.cm)
Ф9.52
2500(255kgf.cm)
2600(265kgf.cm)
Ф12.7
3500(357kgf.cm)
3600(367kgf.cm)
2. Connecting the cables
The power cord of connect should be selected according to the following specifications sheet.
Rated current of appliance
Nominal cross-sectional area (mm²)
>3 and ≤6
0.75
>6 and ≤10
1
>10 and ≤16
1.5
>16 and ≤25
2.5
The cable size and the current of the fuse or switch are determined by the maximum current indicated on the
nameplate which located on the side panel of the unit. Please refer to the nameplate before selecting the
cable, fuse and switch.
3. Pipe length and the elevation
Maximum piping length and height difference
1 drive 2
1 drive 3
1 drive 4
1 drive 5
Max. length for all rooms (m)
30
45
60
75
Max. length for one IU (m)
20
25
30
30
10
10
10
10
15
15
15
15
10
10
10
10
OU higher than IU
OU lower than IU
Max. height difference
between IU and OU (m)
Max. height difference between IUs (m)
Additional refrigerant charge
Chargeless pipe
length (m)
Additional
refrigerant charge
(g)
1 drive 2
1 drive 3
1 drive 4
1 drive 5
10
15
20
25
15 x (length for all
15 x (length for all
15 x (length for all
15 x (length for all
rooms - 10)
rooms - 15)
rooms - 20)
rooms - 25)
Caution:
● Refrigerant pipe diameter is different according to indoor unit to be connected. When using the
extension pipe, refer to the tables below.
● When refrigerant pipe diameter is different from that of outdoor unit union (for 18K indoor unit), additional
transfer connector needs to be used on outdoor unit union.
Installation
75
Pipe length and the elevation
Indoor unit
Model
7K9K12K
18K
Pipe diameter (mm/inch)
Extension pipe diameter (mm/inch)
Liquid
6.35(1/4)
Liquid
6.35(1/4)
Gas
9.52(3/8)
Gas
9.52(3/8)
Liquid
6.35(1/4)
Liquid
6.35(1/4)
Gas
12.7(1/2)
Gas
12.7(1/2)
Liquid
6.35(1/4)
Gas
9.52(3/8)
Outdoor unit union diameter (mm/inch)
Indoor unit A/B/C/D
76
Installation
Installation for the first time
4. Installation for the first time
Air and moisture in the refrigerant system have undesirable effects as below:
● Pressure in the system rises.
● Operating current rises.
● Cooling or heating efficiency drops.
● Moisture in the refrigerant circuit may freeze and block capillary tubing.
● Water may lead to corrosion of parts in the refrigerant system.
Therefore, the indoor units and the pipes between indoor and outdoor units must be leak tested and
evacuated to remove gas and moisture from the system.
Gas leak check (Soap water method):
Apply soap water or a liquid neutral detergent on the indoor unit connections or outdoor unit
connections by a soft brush to check for leakage of the connecting points of the piping. If bubbles come out,
the pipes have leakage.
4.1. Air purging with vacuum pump
(Indoor unit)
(Outdoor unit)
(Liquid side)
Two-way valve
Close
(Gas side)
Three-way valve
Manifold valve
Compound meter
Pressure
gauge
-0.1MPa
Lo
Handle Lo
Charge hose
Close
Hi
Handle Hi
Charge hose
Vacuum
pump
Vacuum
pump
1) Completely tighten the flare nuts of the indoor and outdoor units, confirm that both the 2-way and 3-way
valves are set to the closed position.
2) Connect the charge hose with the push pin of handle lo to the 3-way valves gas service port..
3) Connect the charge hose of handle hi connection to the vacuum pump.
4) Fully open the handle Lo of the manifold valve.
5) Operate the vacuum pump to evacuate.
6) Make evacuation for 30 minutes and check whether the compound meter indicates -0.1Mpa. If
the meter does not indicate -0.1Mpa after pumping 30 minutes, it should be pumped 20 minutes more. If the
pressure can’t achieve -0.1Mpa after pumping 50 minutes, please check if there are some leakage points.
Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump. Confirm
that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump).
Installation
77
Installation for the first time
7) Turn the flare nut of the 3-way valves about 45°counterclockwise for 6 or 7seconds after the gas
coming out, then tighten the flare nut again. Make sure the pressure display in the pressure indicator is a
little higher than the atmosphere pressure. Then remove the charge hose from the 3 way valve.
8) Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve.
4.2. Air purging by refrigerant
Procedure:
1). Confirm that both the 2-way and 3-way valves are set to the closed position.
2). Connect the charge set and a charging cylinder to the service port of the 3-way valve.
3). Air purging.
Open the valves on the charging cylinder and the charge set. Purge the air by loosening the flare nut on the
2-way valve approximately 45’ for 3 seconds then closing it for 1 minute; repeat 3 times.
After purging the air, use a torque wrench to tighten the flare nut on the 2-way valve.
4). Check the gas leakage.
Check the flare connections for gas leakage.
5). Discharge the refrigerant.
Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the
2-way valve approximately 45’ until the gauge indicates 0.3 to 0.5 Mpa.
6). Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open
position.
Be sure to use a hexagonal wrench to operate the valve stems.
78
Installation
Installation for the first time
7). Mount the valve stems nuts and the service port cap.
Be sure to use a torque wrench to tighten the service port cap to a torque 18N·m.
Be sure to check the gas leakage.
4.3. Adding the refrigerant if the pipe length >5m
Electronic scale
Procedure:
1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve.
Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the
cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure the liquid charge.
2). Purge the air from the charge hose.
Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air (be
careful of the liquid refrigerant).
3) Put the charging cylinder onto the electronic scale and record the weight.
4) Operate the air conditioner at the cooling mode.
5) Open the valves (Low side) on the charge set and charge the system with liquid refrigerant.
6).When the electronic scale displays the proper weight (refer to the table), disconnect the charge hose from
the 3-way valve’s service port immediately and turn off the air conditioner before disconnecting the hose.
7). Mount the valve stem caps and the service port
Use torque wrench to tighten the service port cap to a torque of 18N.m.
Be sure to check for gas leakage.
Installation
79
Adding the refrigerant after running the system for many years
5. Adding the refrigerant after running the system for many years
Electronic scale
Procedure:
1). Connect the charge hose to the 3-way service port, open the 2-way valve and the 3-way valve.
Connect the charge hose to the valve at the bottom of the cylinder. If the refrigerant is R410A, make the
cylinder bottom up to ensure liquid charge.
2). Purge the air from the charge hose.
Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air (be
careful of the liquid refrigerant).
3) Put the charging cylinder onto the electronic scale and record the weight.
4) Operate the air conditioner at the cooling mode.
5) Open the valves (Low side) on the charge set and charge the system with liquid refrigerant.
6).When the electronic scale displays the proper weight (refer to the gauge and the pressure of the low side),
disconnect the charge hose from the 3-way valve’s service port immediately and turn off the air conditioner
before disconnecting the hose.
7). Mount the valve stem caps and the service port
Use torque wrench to tighten the service port cap to a torque of 18N.m.
Be sure to check for gas leakage.
80
Installation
Re-installation while the indoor unit need to be repaired
6. Re-installation while the indoor unit need to be repaired
6.1. Collecting the refrigerant into the outdoor unit
Procedure
1). Confirm that both the 2-way and 3-way valves are set to the opened position
Remove the valve stem caps and confirm that the valve stems are in the opened position.
Be sure to use a hexagonal wrench to operate the valve stems.
2). Connect the charge hose with the push pin of handle lo to the 3-way valves gas service port.
3). Air purging of the charge hose.
Open the handle Lo valve of the manifold valve slightly to purge air from the charge hose for 5 seconds and
then close it quickly.
4). Set the 2-way valve to the close position.
5). Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0.1MPa.
6). Set the 3-way valve to the closed position immediately
Do this quickly so that the gauge ends up indicating 0.3 to 0.5Mpa.
Disconnect the charge set, and tighten the 2-way and 3-way valve’s stem nuts.
Use a torque wrench to tighten the 3-way valves service port cap to a torque of 1.8 kgf.m.
Be sure to check for gas leakage.
Installation
81
Re-installation while the indoor unit need to be repaired
6.2. Air purging by the refrigerant
Procedure:
1). Confirm that both the 2-way and 3-way valves are set to the closed position.
2). Connect the charge set and a charging cylinder to the service port of the 3-way valve
Leave the valve on the charging cylinder closed.
3). Air purging.
Open the valves on the charging cylinder and the charge set. Purge the air by loosening the flare nut on the
2-way valve approximately 45’ for 3 seconds then closing it for 1 minute; repeat 3 times.
After purging the air, use a torque wrench to tighten the flare nut on the 2-way valve.
4). Check the gas leakage
Check the flare connections for gas leakage.
5). Discharge the refrigerant.
Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the
2-way valve approximately 45’ until the gauge indicates 0.3 to 0.5 Mpa.
6). Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open
position
Be sure to use a hexagonal wrench to operate the valve stems.
7). Mount the valve stems nuts and the service port cap
Be sure to use a torque wrench to tighten the service port cap to a torque 18N.m.
82
Installation
Re-installation while the outdoor unit need to be repaired
Be sure to check the gas leakage.
7. Re-installation while the outdoor unit need to be repaired
7.1. Evacuation for the whole system
Procedure:
1). Confirm that both the 2-way and 3-way valves are set to the opened position.
2). Connect the vacuum pump to 3-way valve’s service port.
3). Evacuation for approximately one hour. Confirm that the compound meter indicates -0.1Mpa.
4). Close the valve (Low side) on the charge set, turn off the vacuum pump, and confirm that the gauge
needle does not move (approximately 5 minutes after turning off the vacuum pump).
5). Disconnect the charge hose from the vacuum pump.
Installation
83
Re-installation while the outdoor unit need to be repaired
7.2. Refrigerant charging
Procedure:
1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve
Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the
cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure liquid charge.
2). Purge the air from the charge hose
Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air (be
careful of the liquid refrigerant).
3) Put the charging cylinder onto the electronic scale and record the weight.
4). Open the valves (Low side) on the charge set and charge the system with liquid refrigerant
If the system cannot be charge with the specified amount of refrigerant, or can be charged with a little at a
time (approximately 150g each time) , operating the air conditioner in the cooling cycle; however, one time is
not sufficient, wait approximately 1 minute and then repeat the procedure.
5).When the electronic scale displays the proper weight, disconnect the charge hose from the 3-way valve’s
service port immediately
If the system has been charged with liquid refrigerant while operating the air conditioner, turn off the air
conditioner before disconnecting the hose.
6). Mounted the valve stem caps and the service port
Use torque wrench to tighten the service port cap to a torque of 18N.m.
Be sure to check for gas leakage
84
Installation
Electrical Control System
Part 5
Electrical Control System
1. Electrical Control Function...........................................86
2. Troubleshooting ...........................................................100
Electrical Control System
85
Electrical Control Function
1. Electrical Control Function
1.1 Definition
T1:
Room Air Thermistor (RAT)
T2:
Indoor Coil Thermistor (ICT)
T2B: Indoor Return Gas Thermistor (RGT)
T3:
Outdoor Coil Thermistor (OCT)
T4:
Outdoor Air Thermistor (OAT)
T5:
Compressor Discharge Thermistor (CTT)
1.2 Main Protection
1.2.1 Three minutes delay at restart for compressor.
1.2.2 Temperature protection of compressor discharge
When the compressor discharge temp. is getting higher, the running frequency will be limited as below rules:
----If 102℃<T5<115℃, decrease the frequency to the lower level every 2 minutes till to F1.
---If T5>115℃ for 10 seconds, the compressor will stop and restart till T5<90℃.
1.2.3 Sensor protection at open circuit and breaking disconnection.
1.2.4 Indoor fan delayed open function
When the unit starts up, the louver will be active immediately and the indoor fan will open 10s later.
If the unit runs in heating mode, the indoor fan will be also controlled by anti-cold wind function.
1.2.5 Fan speed is out of control(Excluding AWSI-HKD009-N11)
When indoor fan speed keeps too low for certain time, the unit will stop and the LED will display the failure.
1.2.6
Zero crossing detection error protection(only for AWSI-HKD009-N11)
If AC detects time interval is not correct for continuous 240s, the unit will stop and the LED will display the
failure. The correct zero crossing signal time interval should be between 6-13ms.
1.2.7 Inverter module protection
The Inverter module has a protection function about current, voltage and temperature. If these protections
happen, the corresponding code will display on indoor unit and the unit will stop working.
1.2.8 Compressor current limit protection
If the compressor current exceeds the current limit value for 10 seconds, the compressor frequency will be
limited as below table.
Cooling mode:
Current frequency(Hz) Current limit value(A)
COOL_F16
ICOOLLMT12
COOL_F15
ICOOLLMT11
COOL_F14
ICOOLLMT10
COOL_F13
ICOOLLMT9
COOL_F12
ICOOLLMT8
COOL_F11
ICOOLLMT7
COOL_F10
ICOOLLMT6
COOL_F9
ICOOLLMT5
COOL_F8
ICOOLLMT4
COOL_F7
ICOOLLMT3
86
Frequency limit
Decrease the frequency to COOL_F4 and run at COOL_F4 for
3 minutes.
After that, the frequency will be adjusted according to the
capacity demand and rise to the upper level every 3 minutes
(When the frequency>COOL_F4 via capacity demand).
Electrical Control System
Electrical Control Function
COOL_F6
ICOOLLMT2
COOL_F5
ICOOLLMT1
If the current frequency is lower than COOL_F4, the frequency will not be limited.
After 10s of the compressor start, if the current>ICOOL, the AC will display the failure for 30 seconds and stop. The AC
will restart 3 minutes later.
Heating mode:
Frequency limit
Current frequency(Hz) Current limit value(A)
HEAT_F16
IHEATLMT12
HEAT_F15
IHEATLMT11
HEAT_F14
IHEATLMT10
HEAT_F13
IHEATLMT9
HEAT_F12
IHEATLMT8
HEAT_F11
IHEATLMT7
HEAT_F10
IHEATLMT6
HEAT_F9
IHEATLMT5
HEAT_F8
IHEATLMT4
HEAT_F7
IHEATLMT3
HEAT_F6
IHEATLMT2
HEAT_F5
IHEATLMT1
Decrease the frequency to HEAT_F4 and run at HEAT_F4 for
3 minutes.
After that, the frequency will be adjusted according to the
capacity demand and rise to the upper level every 3 minutes
(When the frequency>Heat_F4 via capacity demand).
If the current frequency is lower than HEAT_F4, the frequency will not be limited.
After 10s of the compressor start, if the current>IHEAT, the AC will display the failure for 30 seconds and stop. The AC
will restart 3 minutes later.
1.2.9 Indoor / outdoor units communication protection
If the indoor units cannot receive the feedback signal from the outdoor units for 2 minutes, the AC will stop
and display the failure.
1.2.10 Oil return
Running rules:
1. If the compressor frequency keeps lower than RET_OIL_FREQ1_ADD for RET_OIL_TIME1_ADD, the
AC will rise the frequency to RET_OIL_FREQ2_ADD for RET_OIL_TIME2_ADD and then resume to
former frequency.
2. The EXV will keep 300p while the indoor units will keep the current running mode.
3. If the outdoor ambient is higher than TempT4HeatLimit_ADD during the oil return, the AC quit oil return.
1.3 Operation Modes and Functions
1.3.1 Fan mode
(1) Outdoor fan and compressor stop.
(2) Temperature setting function is disabled, and no setting temperature is displayed.
(3) Indoor fan can be set to high/med/low/auto;
(4) The louver operates same as in cooling mode.
(5) Auto fan:
For Cassette、Duct
Electrical Control System
87
Electrical Control Function
3.5
High
3.0
Medium
1.5
1.0
Low
For HKD,HND, Console
T1-24
6.0
5.0
4.0
2.5
1.0
H
a
(H-L)*0.75+L
(H-L)*0.5+L
(H-L)*0.25+L
L
b
c
d
e
1.3.2 Cooling Mode
1.3.2.1 Compressor running rules
The compressor will run at corresponding frequency according to the gross amendatory capacity demand.
Frequency
Amendatory capacity demand.
COOL_F0
0
COOL_F1
1
COOL_F2
2
……
……
COOL_F15
15
COOL_F16
16
Meanwhile the maximum running frequency will be adjusted according to the outdoor ambient temp.
T4LimFre5_ADD
49
48
T4LimFre4_ADD
46
45
43
T4LimFre3_ADD
42
41
T4LimFre2_ADD
39
38
T4LimFre1_ADD
37
No limit
1.3.2.2 Outdoor fan running rules
88
Electrical Control System
Electrical Control Function
T4
28℃
A
DC_FAN_HI_SPD_ADD
B
DC_FAN_MID_SPD_ADD
C
DC_FAN_MIN_SPD_ADD
D
DC_FAN_SLOW_SPD_ADD
E
DC_FAN_SSLOW_SPD_ADD
26℃
25℃
23℃
22℃
20℃
19℃
17℃
1.3.2.3 Indoor fan running rules
For Cassette、A5
In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto.
The auto fan:
3.5
High
3.0
1.5
Medium
1.0
Low
For HKD,HND, Console:
In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto.
When the compressor is running, the indoor fan is controlled as below:
Electrical Control System
89
Electrical Control Function
The auto fan acts as below rules:
T1-Ts
6.0
5.0
4.0
2.5
1.0
H
a
b
c
d
e
(H-L)*0.75+L
(H-L)*0.5+L
(H-L)*0.25+L
L
1.3.2.4 Condenser temperature protection
When T3>65℃ for 3 seconds, the compressor will stop while the indoor fan and outdoor fan will continue.
When T3<52℃, the protection will release and the compressor will restart after 3 minutes.
1.3.2.5 Evaporator low temperature protection
When T2B<0℃ for 250 seconds, the indoor unit has no capacity demand and resume till T2B>10℃.
When T2<4℃, the indoor has no capacity demand and resume till T2>8℃.
1.3.3 Heating Mode
1.3.3.1 Compressor running rules
The compressor will run at corresponding frequency according to the gross amendatory capacity demand.
Frequency
Amendatory capacity demand.
0
0
HEAT_F1
1
HEAT _F2
2
……
……
HEAT_F15
15
HEAT _F16
16
1.3.3.2 Outdoor fan running rules:
90
Electrical Control System
Electrical Control Function
T4
21℃
E
DC_FAN_SSLOW_SPD_ADD
D
DC_FAN_SLOW_SPD_ADD
C
DC_FAN_MIN_SPD_ADD
B
DC_FAN_MID_SPD_ADD
A
DC_FAN_HI_SPD_ADD
19℃
18℃
16℃
15℃
13℃
12℃
10℃
1.3.3.3 Indoor fan running rules:
For HKD,HND, Console
In heating mode, indoor fan can be selected as high, medium, low, auto and silent. The anti-cold-wind
function has the priority.
When the compressor is running, the indoor fan is controlled as below:
If the compressor stops caused by the room temperature rising, the indoor fan will be forced to run 127
seconds with breeze. During this period, the anti-cold-wind is disabled.
Auto fan action in heating mode:
Electrical Control System
91
Electrical Control Function
T1-Ts+ΔT
0.0
-1.0
L
(H+-L)*0.2+L
(H+-L)*0.4+L
-2.0
-3.0
(H+-L)*0.6+L
-4.0
(H+-L)*0.6+L
-5.0
-6.0
-6.5
(H+-L)*0.8+L
H+
For Cassette & Duct:
When the compressor is on, the indoor fan can be set to high, medium, low and auto. And the anti-cold wind
function has the priority.
Auto fan action:
T1-Ts-ΔT
Low
-3.5
-4
Medium
-4.5
-5
High
1.3.3.4 Prevent Over-Heating
In heating mode, when the indoor unit has no capacity requirement due to indoor room temperature
increased, the Indoor fan will run in super breeze. (Anti-cold wind function has the priority)
1.3.3.5 Defrosting mode:
Condition of defrosting:
If any one of the following items is satisfied, AC will enter the defrosting mode.
After the compressor starts up and keeps running, mark the minimum value of T3 from the 10th minutes to
15th minutes as T30.
1)If the compressor cumulate running time is up to 29 minutes and T3< TCDI1, T3+T30SUBT3ONE≦T30.
2)If the compressor cumulate running time is up to 35 minutes and T3< TCDI2, T3+T30SUBT3TWO≦T30.
3)If the compressor cumulate running time is up to 29 minutes and T3< TCDI3 for 3 minutes.
4)If the compressor cumulate running time is up to 120 minutes and T3<-15℃.
Condition of ending defrosting:
If any one of the following items is satisfied, the defrosting will finish and the machine will turn to normal
heating mode.
92
Electrical Control System
Electrical Control Function
----T3 rises to be higher than TCDE1℃.
----T3 keeps to be higher than TCDE2℃ for 80 seconds.
----The machine has run for 10 minutes in defrosting mode.
Defrosting action:
4-Way valve
no longer than 10min
Compressor
Indoor fan
Cool-F9
TimeA 10S
10S 30S
Anti cold wind
Outdoor fan
PMV running
4 mins with 480P
PMV
480P
1.3.3.5 High evaporator coil temp.T2 protection:
If T2>63℃, the indoor unit has no capacity demand and resume till 48℃.
.
1.3.4 Auto-mode
This mode can be chosen with remote controller and the setting temperature can be changed between
17~30℃.
In auto mode, the machine will choose cooling, heating or fan-only mode according to ΔT (ΔT =T1-Ts).
ΔT=T1-Ts
Running mode
ΔT>1℃
Cooling
-1<ΔT≤1℃
Fan-only
ΔT≤-1℃
Heating
Indoor fan will run at auto fan of the relevant mode.
The louver operates same as in relevant mode.
If the machine switches mode between heating and cooling, the compressor will keep stopping for 15
minutes and then choose mode according to T1-Ts.
If the setting temperature is modified, the machine will choose running function again.
1.3.5 Drying mode
HKD,HND(9K,12K)
Indoor fan speed is fixed at breeze and can’t be changed. The louver angle is the same as in cooling mode.
Electrical Control System
93
Electrical Control Function
Low indoor room temperature protection
All protections are active and the same as that in cooling mode.
For other models:
Indoor fan speed is fixed at breeze and can’t be changed. The louver angle is the same as in cooling mode.
Low indoor room temperature protection
In drying mode, if room temperature is lower than 10℃, the compressor will stop and not resume until room
temperature exceeds 12℃.
All protections are active and the same as that in cooling mode.
1.3.6 Timer function
1.3.6.1 Timing range is 24 hours.
1.3.6.2 Timer on. The machine will turn on automatically when reaching the setting time.
1.3.6.3 Timer off. The machine will turn off automatically when reaching the setting time.
1.3.6.4 Timer on/off. The machine will turn on automatically when reaching the setting “on” time, and then
turn off automatically when reaching the setting “off” time.
1.3.6.5 Timer off/on. The machine will turn off automatically when reaching the setting “off” time, and then
turn on automatically when reaching the setting “on” time.
1.3.6.6 The timer function will not change the AC current operation mode. Suppose AC is off now, it will not
start up firstly after setting the “timer off” function. And when reaching the setting time, the timer LED will be
off and the AC running mode has not been changed.
1.3.6.7 The setting time is relative time.
1.3.7 Economy function
1.3.7.1 The sleep function is available in cooling, heating or auto mode.
1.3.7.2. Operation process in sleep mode is as follow:
When cooling, the setting temperature rises 1℃ (be lower than 30℃) every one hour, 2 hours later the
setting temperature stops rising and the indoor fan is fixed at low speed.
When heating, the setting temperature decreases 1℃ (be higher than 17℃) every one hour, 2 hours later
the setting temperature stops rising and indoor fan is fixed at low speed. (Anti-cold wind function has the
priority).
1.3.7.3 Operation time in sleep mode is 7 hours. After 7 hours the AC quits this mode, the unit will turn off.
1.3.7.4 Timer setting is available
1.3.8 Auto-Restart function
The indoor unit is equipped with auto-restart function, which is carried out through an auto-restart module. In
case of a sudden power failure, the module memorizes the setting conditions before the power failure. The
unit will resume the previous operation setting (not including Swing function) automatically after 3 minutes
when power returns.
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Electrical Control System
Electrical Control Function
1.3.10 Forced operation function
1.3.10.1 Enter forced operation function:
Press the touch button continually, the AC will run as below sequence:
Forced auto→Forced cooling→Off
When the machine is off, pressing the touch button will carry the machine to forced auto mode, after this, if
pressing the button once again, the machine will turn into forced cooling mode.
In forced cooling mode, pressing touch button will turn off the machine.
1.3.10.2 In forced operation mode, all general protections and remote control are available.
1.3.10.3 Operation rules:
Forced cooling mode:
The compressor runs at F2 frequency and indoor fan runs as breeze. After running for 30 minutes. the
machine will turn to auto mode as 24℃ setting temperature.
Forced auto mode:
The action of forced auto mode is the same as normal auto mode with 24℃ setting temperature.
1.3.10.4 When there’s indoor unit running in forced cooling, it is the master forced cooling unit. Other indoor
units will run at forced cooling mode too and they will be the slave forced cooling units. The slave forced
cooling units cannot quit forced cooling mode until the master forced cooling unit quit, and turn to cooling
mode in low speed with 24℃ setting temperature.
1.3.10.5 The slave forced cooling units will not be controlled by other signals.
1.3.11 Drain pump control (For Cassette)
Adopt the water-level switch to control the action of drain pump.
Main action under different condition :( every 5 seconds the system will check the water level one time)
1. When the A/C operates with cooling (including auto cooling) and forced cooling mode, the pump will start
running immediately and continuously, till stop cooling.
2. Once the water level increase and up to the control point, LED will alarm and the drain pump open and
continue checking the water level. If the water level fall down and LED disalarmed (drain pump delay close 1
minute) and operate with the last mode. Otherwise the entire system stop operating ( including the pump)
and LED remain alarming after 3 minutes.
1.3.12 Follow me
1)
If the indoor PCB receives the signal which results from pressing the FOLLOW ME button on remote
controller, the buzzer will emit a sound and this indicates the follow me function is initiated. But when the
indoor PCB receives signal which sent from remote controller every 3 minutes, the buzzer will not
respond. When the unit is running with follow-me function, the PCB will control the unit according to the
temperature from follow-me signal, and the temperature collection function of room temperature sensor
will be shielded.
2)
When the follow-me function is available, the PCB will not respond according to the setting temperature
Electrical Control System
95
Electrical Control Function
from follow-me signal every 3 minutes.
3)
The PCB will take action to the mode change information from remote controller signal, and the
follow-me function will be turned off. (if the wired remote controller does not initiate follow me function).
4)
When the unit is running with follow-me function, if the PCB doesn’t receive any signal from remote
controller for 7 minutes or pressing FOLLOW ME button again, the follow-me function will be turned off
automatically, and the temperature collection function of room temperature sensor will be available, the
PCB will control the unit according to the room temperature detected from its own room temperature
sensor and setting temperature.
5)
When the indoor PCB receives the follow-me signal from wired remote controller, the control is the
same as that from wireless remote controller, but buzzer will not respond. When the PCB receives
turning-off follow-me signal from wired remote controller, the unit will quit follow-me function at once.
The follow-me function controlled by wired remote controller prevails that by wireless remote controller.
1.3.13 8℃ Heating(optional)
In heating operation, the preset temperature of the air conditioner can be as lower as 8℃, which keeps the
room temperature steady at 8℃ and prevents household things freezing when the house is unoccupied for
a long time in severe cold weather.
1.3.14 Mode conflict
The indoor units cannot work cooling mode and heating at same time.
Heating mode has a priority.
(1) Definition
Cooling mode
Heating Mode
Fan
Cooling mode
No
Yes
No
Heating Mode
Yes
No
Yes
Fan
No
Yes
No
Off
No
No
No
Off
No
No
No
No
No: No mode conflict;
Yes: Mode conflict
(2) Unit action
 In case of one Indoor unit working in cooling mode or fan mode, and another indoor unit is set to heating
mode, the indoor unit working in cooling mode or fan mode will change to off. The outdoor unit will
change to heating mode after compressor stop 3 minutes. .
 In case of one Indoor unit working in heating mode, and another indoor unit is set to cooling mode or fan
mode, the indoor unit setting to cooling mode or fan mode will change to stand by. The outdoor unit will
continue working in heating mode.
If heating mode stops (not including the indoor unit in heating mode reaching the set temperature), 3
minutes after the outdoor unit restarts and works in cooling mode or fan-only mode.
1.3.15 Point Check Function
There is a check switch in outdoor PCB.
Press the switch SW1 to check the states of unit when the unit is running.
Press the switch N times it will display the content corresponding to No. N. After getting into the check
96
Electrical Control System
Electrical Control Function
function, it will display No. N with 1.5s, meanwhile the low bit decimal of digit display flashing, indicated to
get into the check function display. After 1.5s, it will display the content corresponding to No. N.
The digital display tube will display the follow procedure when push SW1 each time.
Display
Remark
0
Normal display
Display running frequency, running state or malfunction code
1
No. of indoor units in good connection
Actual data
2
Outdoor unit running mode code
Off:0,Fan only 1, Cooling:2, Heating:3, Forced cooling:4
3
A indoor unit capacity
4
B indoor unit capacity
5
C indoor unit capacity
6
D indoor unit capacity
7
E indoor unit capacity
8
A Indoor unit capacity demand code
9
B Indoor unit capacity demand code
10
C Indoor unit capacity demand code
11
D Indoor unit capacity demand code
12
E Indoor unit capacity demand code
13
Total indoor units amendatory capacity
demand code
The frequency corresponding to the total
indoor units amendatory capacity demand
The frequency after the frequency limit
14
15
16
17
The frequency sending to compressor
control chip
A indoor unit evaporator outlet temp.(T2BA)
18
B indoor unit evaporator outlet temp.(T2BB)
19
C indoor unit evaporator outlet temp.(T2BC)
20
D indoor unit evaporator outlet temp.(T2BD)
21
E indoor unit evaporator outlet temp.(T2BE)
22
A indoor unit room temp.(T1A)
23
B indoor unit room temp.(T1B)
24
C indoor unit room temp.(T1C)
25
D indoor unit room temp.(T1D)
26
E indoor unit room temp.(T1E)
27
A indoor unit evaporator temp.(T2A)
28
B indoor unit evaporator temp.(T2B)
29
C indoor unit evaporator temp.(T2C)
30
D indoor unit evaporator temp.(T2D)
31
E indoor unit evaporator temp.(T2E)
32
Condenser pipe temp.(T3)
33
Outdoor ambient temp.(T4)
34
Compressor discharge temp.(T5)
35
AD value of current
36
AD value of voltage
37
EXV open angle for A indoor unit
Electrical Control System
The capacity unit is horse power. If the indoor unit is not connected,
the digital display tube will show: “――”
(7K:0.8HP, 9K:1HP,12K:1.2HP,18K:1.5HP)
Norm value*HP
(7K:0.8HP, 9K:1HP,12K:1.2HP,18K:1.5HP)
Forced cooling:7
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: “――”
If the temp. is lower than 0 degree, the digital display tube will show
“0”.If the temp. is higher than 50 degree, the digital display tube will
show “50”. If the indoor unit is not connected, the digital display tube
will show: “――”
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 30~129 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 display value is hex number.
For example ,the digital display tube show “Cd”, it means AD value is
205.
Actual data/4.
97
Electrical Control Function
38
EXV open angle for B indoor unit
39
EXV open angle for C indoor unit
40
EXV open angle for D indoor unit
41
EXV open angle for E indoor unit
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.)
Bit6
Frequency limit caused by IGBT
radiator
Frequency limit caused by PFC
Bit5
Frequency limit caused by T4.
Bit4
Frequency limit caused by T2.
Bit3
Frequency limit caused by T3.
Bit2
Frequency limit caused by T5
Bit1
Frequency limit caused by current
Bit7
42
Frequency limit symbol
Bit0
43
Average value of T2
44
Outdoor unit fan motor state
45
The last error or protection code
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.
Frequency limit caused by voltage
(Sum T2 value of all indoor units)/( number of indoor units in good
connection)
Off:0, High speed:1, Med speed:2, Low speed:3 Breeze:4, Super
breeze:5
00 means no malfunction and protection
The following items from 1.3.12.1 to 1.3.12.5 are for the explanation of the point check functions.
1.3.12.1 Frequency of compressor:
Display
Frequency of compressor (Hz)
30
30
--
Stand by
60
60
Display
0
Corresponding mode
Off
1
Fan only
2
Cooling mode
3
Heating mode
4
Forced cooling
1.3.12.2 Running mode:
1.3.12.3 Capacity demand:
Cooling mode
T1 Ts
a
3
2
1
0
1
b
c
d
4
3
2
1
e
0
f
Capacity area
a
b
c
d
e
f
Norm value (N)
3
2
1.5
1
0.5
0
Heating mode
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Electrical Control System
Electrical Control Function
T1 Ts
4
3
2
1
0
f
e
d
c
b
a
3
2
1
0
-1
Capacity area
a
b
c
d
e
f
Norm value (N)
3
2
1.5
1
0.5
0
1.3.12.4 Number of indoor unit
Display
1
Number of indoor unit
1
2
2
3
3
4
4
5
5
1.3.12.5 Opening degree of electronic expansion valve:
Actual opening degree equals the display data times 4
Electrical Control System
99
Troubleshooting
2. Troubleshooting
2.1 Display board
2.1.1 Icon explanation on indoor display board (HKD& HND).
ION indication lamp(optional function):This lamp illuminates when Clean Air
feature is activated.
DEFROST indication lamp(For cooling & heating models only): Lights up
when the air conditioner starts defrosting automatically or when the warm air
control feature is activated in heating operation.
OPERATION indication lamp:This lamp illuminates when the air conditioner is in
operation.
TIMER indication lamp:Lights up during Timer operation.
Temperature indicator:Displays the temperature settings when the air conditioner
is operational. Displays the malfunction code.
2.1.2 Icon explanation on indoor display board (Duct)
PRE-DEF indicator(cooling and heating type)
or fan only indicator(cooling only type)
Timer indicator
Alarm indicator
Operation lamp
Infrared signal receiver
Display digital tube
Temporary button
FUNC
100
Electrical Control System
Troubleshooting
2.1.3
Icon explanation on indoor display board (Compact cassette).
Infrared signal receiver
Temporary button
Operation temp. Timer indicator
Alarm indicator
PRE-DEF indicator(cooling and
heating type)
or fan only indicator(cooling only
type)
2.1.4 Icon explanation on indoor display board (Console)
Infrared signal receiver
Operation temp.
Timer indicator
PRE-DEF indicator(cooling and
heating type)
or fan only indicator(cooling only
type)
FUNC
Temporary button
2.1.5 Outdoor unit’s digital display tube
There is a digital display tube in outdoor PCB.
Digital display tube display function
 In standby , the LED displays “- -”
 In compressor operation, the LED display the running frequency,
 In defrosting mode, The LED displays “dF” or alternative displays between running frequency and
“dF”(each displays 0.5s)
 In compressor pre-heating, The LED displays “PH” or alternative displays between running frequency
and “PH”(each displays 0.5s)
 During the oil return process, The LED displays “RO” or alternative displays between running
frequency and “RO”(each displays 0.5s)
 In low ambient cooling mode, the LED displays “LC” or alternative displays between running
frequency and “LC”(each displays 0.5s)
 In forced cooling mode, the LED displays “FC” or alternative displays between running frequency
“FC”(each displays 0.5s)
and
 When PFC module protection occurs three times within 15 minutes, the LED displays “E6” or
alternative displays between running frequency and “E6”(each displays 0.5s)
 In protection or malfunction, the LED displays error code or protection code.
Electrical Control System
101
Troubleshooting
2.2 Indoor unit malfunction
For HKD,HND
Display
Operation lamp flash times
Timer lamp
Failure
E0
1
X
Indoor EEPROM malfunction
E1
2
X
Indoor / outdoor units communication error
E3
4
X
Indoor fan speed has been out of control
E4
5
X
Open or short circuit of T1 temperature sensor
E5
6
X
Open or short circuit of T2 temperature sensor
F1
2
O
Open or short circuit of T4 temperature sensor
F2
3
O
Open or short circuit of T3 temperature sensor
F3
4
O
Open or short circuit of T5 temperature sensor
F4
5
O
Outdoor EEPROM parameter error
F5
6
O
Outdoor fan speed out of control
F6
7
O
Open or short circuit of T2B temperature sensor
P0
1
☆
IPM module protection
P1
2
☆
Voltage protection
P4
5
☆
Inverter compressor drive protection
P5
6
☆
Mode conflict
P6
7
☆
Low pressure protection
O(light)
X(off) ☆(flash)
For Cassette & Duct:
1
Open or short circuit of T1 temperature sensor
☆
X
X
X
DISPLAY
DIGITAL TUBE
E0
2
Open or short circuit of T2 temperature sensor
X
X
☆
X
E1
3
Indoor / outdoor units communication error
X
☆
X
X
E2
4
Full-water malfunction
X
X
X
☆
E3
5
Indoor EEPROM malfunction
☆
☆
X
X
E4
6
IPM module protection
☆
X
X
O
E5
7
Open or short circuit of T3 or T4 temperature sensor or
Outdoor EEPROM malfunction
☆
O
X
X
E6
8
Outdoor fan speed has been out of control
☆
O
☆
X
E7
9
Indoor fan speed has been out of control
X
F5
Voltage protection
O
O
O
10
☆
☆
X
O
P0
11
Outdoor unit over-current protection
☆
☆
☆
X
P2
12
Inverter compressor drive protection
☆
◎
X
X
P4
13
Mode conflict
☆
X
O
O
P5
NO.
MALFUNCTION
RUN
Timer
DEF
Alarm
☆ Flash(at 2.5Hz)
◎ Flash(at 0.5Hz)
O light X(off)
Note: Digital display is only available for A5 duct type.
102
Electrical Control System
Troubleshooting
For Console:
NO.
Malfunction
Running lamp
Timer lamp
Defrosting lamp
1
Open or short circuit of T1 temperature sensor
☆
X
X
2
Open or short circuit of T2 temperature sensor
X
X
☆
3
Communication malfunction between indoor and outdoor
units.
X
☆
X
4
Outdoor fan speed has been out of control
X
☆
O
5
Indoor EEPROM malfunction
☆
☆
X
6
IPM module protection
☆
X
☆
7
Open or short circuit of T3 or T4 temperature sensor or
Outdoor unit EEPROM parameter error
☆
☆
☆
8
Voltage protection
☆
☆
O
9
Inverter compressor drive protection
☆
◎
X
10
Indoor fan Speed has been out of control.
☆
O
☆
11
Mode conflict
☆
X
O
O(light)
Electrical Control System
X(off) ☆(flash at 5Hz)
◎(flash at 0.5Hz)
103
Troubleshooting
2.3 Outdoor unit malfunction
Display
LED STATUS
E0
Outdoor EEPROM malfunction
E2
Indoor / outdoor units communication error
E3
Communication malfunction between IPM board and outdoor main board
E4
Open or short circuit of outdoor unit temperature sensor(T3,T4,T5,T2B)
E5
Voltage protection
E8
Outdoor fan speed has been out of control
F1
No A Indoor unit coil outlet temperature sensor or connector of sensor is defective
F2
No B Indoor unit coil outlet temperature sensor or connector of sensor is defective
F3
No C Indoor unit coil outlet temperature sensor or connector of sensor is defective
F4
No D Indoor unit coil outlet temperature sensor or connector of sensor is defective
F5
No E Indoor unit coil outlet temperature sensor or connector of sensor is defective
P1
High pressure protection (For AWAU-YCZ430-H11, AWAU-YCZ536-H11)
P2
Low pressure protection (For AWAU-YCZ430-H11, AWAU-YCZ536-H11)
P3
Current protection of compressor
P4
Temperature protection of compressor discharge
P5
High temperature protection of condenser
P6
IPM module protection
Note: Once these error codes display, they will disappear in at least 30 seconds if the unit come back to
normal.(Except E3&E4)
104
Electrical Control System
Troubleshooting
2.4 Solving steps for typical malfunction
2.4.1 For the indoor unit
2.4.1.1 Indoor EEPROM malfunction
Shut off the power supply and
turn it on 1 minute later. Is it
still displaying the error code?
Yes
If the EEPROM chip
is welded on PCB,
replace the PCB
directly. Otherwise,
check whether the
EEPROM chip
plugged in PCB well?
No
Insert the EEPROM well
Yes
Replace the indoor PCB.
Electrical Control System
105
Troubleshooting
2.4.1.2 Indoor / outdoor units communication error
Indoor / outdoor units communication error
Start: Power off , then Power on the
A/C by the Breaker. (reconnect the
power wire). Is it still displaying the
error code?
Yes
Check wiring on the outdoor and indoor
terminal follow the wiring diagram. Is all
connecting correctly?
No
Reconnect the wiring
No
No
Reconnect the wiring
Yes
Turn on all indoor unit by remote
controller. Is all indoor unit display
No
Yes
Measure Vs, is it moving
alternately between positive value
and negative value? (Vs is the
voltage between S and N). Refer
PIC 1
A: Is all the wiring between
No
Yes
Yes
Yes
Turn off the all indoor units. Is IPM
power LED or operating LED lamp
On? Refer PIC2
No
terminal and Indoor PCB
connect ok?
Change the Indoor PCB
change IPM
Power on by remote
controller, IIs it still
displaying the error code
Yes
after 3 minutes?
Is main board“
”
lamp on? Refer PIC 3.
No
Is the reactor connecting
well?
No
Reconnect the wiring
No
Yes
Yes
Change Outdoor Main PCB
Is indoor units number correct? Check
on the outdoor check point . (2 for dual
zone, 3 for tri zone, 4 for qua zone).
Refer PIC 4.
No first time
No second time
Trouble is solved
A
Change outdoor unit PCB assembly(include
wiring) totally
106
Electrical Control System
Troubleshooting
Pic 1: check the voltage of N to S
(Vs), is it moving alternately
between positive value and negative
value?
Pic 2: :IPM (For dual/tri-zone)
Operating
Self-Check
Pic 2: :IPM (For qua-zone)
els)
Power,
Self-Check
Operating
Electrical Control System
107
Troubleshooting
PIC3 :Main board LED when power on and unit
standby.
.
108
PIC 4: check point button,
Press 1 time for check how many indoor units are
connected
Electrical Control System
Troubleshooting
2.4.1.3 indoor unit fan speed has been out of control
Shut off the power supply
and turn it on 1 minute
later. Is it still displaying
the error code?
No
The unit operates normally.
Yes
Shut off the power supply,
rotate the fan by hand.
Does it rotate properly?
No
Find out the cause and
have it solved. For
example, check
whether the fan is
blocked or the bearing
is broken?
No
Correct the connections.
Yes
Check the wires of fan
motor. Are all the
connections good?
Yes
Check whether the fan
motor is normal through
index 1?
No
Replace the fan
motor
If the
malfunction is
still existing,
replace the
main PCB
No
Yes
Check whether the main PCB is
normal through index 2?
No
Replace the
main PCB.
The
malfunction is
solved?
Yes
Index 1:
1.Indoor AC fan motor
Measure the resistance value of each winding by using the tester.
For the definite value of the resistance, refer to 2.4.3 Main parts check.
2.Indoor DC fan motor(control chip is inside fan motor)
Measure the resistance value of each winding by using the tester. If any resistance value is zero, the fan
motor must have problems and need to be replaced.
Electrical Control System
109
Troubleshooting
For console:
5
4
6
3
1
2
NO.
Color
1
Red
2
---
3
White
4
Blue
5
Yellow
6
Black
For other models:
NO.
1
2
3
4
5
6
Color
Red
--Black
White
Yellow
Blue
Index2:
1: Indoor AC fan motor
Power on and set the unit running in fan mode at high fan speed. After running for 15 seconds, measure the
voltage of pin1 and pin2. If the value of the voltage is less than 100V(208~240V power supply)or 50V(115V
power supply), the PCB must have problems and need to be replaced.
2. Indoor DC fan motor(control chip is inside fan motor)
Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor
connector. If the value of the voltage is not in the range showing in below table, the PCB must have
problems and need to be replaced.
For other models:
110
Electrical Control System
Troubleshooting
For console:
5
4
6
3
1
2
DC motor voltage input and output
For HKD &HND:
NO.
Color
Signal
Voltage
1
Red
Vs/Vm
280V~380V
2
---
---
---
3
Black
GND
0V
4
White
Vcc
14-17.5V
5
Yellow
Vsp
0~5.6V
6
Blue
FG
14-17.5V
For Duct & Cassette:
NO.
Color
Signal
Voltage
1
Red
Vs/Vm
192V~380V
2
---
---
---
3
Black
GND
0V
4
White
Vcc
13.5-16.5V
5
Yellow
Vsp
0~6.5V
6
Blue
FG
15V
For console:
NO.
Color
Signal
Voltage
1
Red
VDC
310V
2
---
---
---
3
White
Vcc
15V
4
Blue
FG
15V
5
Yellow
Vsp
0-7.5V
6
Black
GND
0V
Electrical Control System
111
Troubleshooting
2.4.1.4 Open or short circuit of temperature sensor.
Check the connections
between temperature
No
Correct the connections.
sensor and PCB. Are
the connections good?
Yes
Check the resistance value
of the sensor via Appendix 1
Is it normal?
Yes
Replace indoor or outdoor PCB.
No
Replace the sensor
2.4.1.5 Full-water malfunction
If the water-level switch
is inserted well?
No
Insert the water-level switch well
Yes
Replace the water-level switch
Yes
If the water-level switch
is broken?
No
If the water pump is
normal?
No
Replace the water pump
Yes
Check PCB board or replace the indoor main PCB
112
Electrical Control System
Troubleshooting
2.4.2 For the outdoor unit
2.4.2 1 Outdoor EEPROM malfunction(ODU E0)
Outdoor EEPROM malfunction
Yes
If the EEPROM chip
is welded on PCB,
replace the PCB
directly. Otherwise,
check whether the
EEPROM chip
plugged in PCB well?
No
Insert the EEPROM well
Yes
Replace the outdoor main board
Electrical Control System
113
Troubleshooting
2.4.2.2 Communication malfunction between IPM board and outdoor main board(ODU E3)
Communication malfunction between
IPM board and outdoor main board
Is there at least one LED in
the IPM board light?
No
Check the signal wire between
the IPM module and the main
board, is it connected good?
Yes
No
Yes
Reconnect and retry. Is
error still display?
No
No
Replace IPM board, and
then check whether the
system can run normally
Yes
No
Replace outdoor main
board, and then check
whether the system can run
normally
Yes
No
Replace the electric control
box
114
Trouble is solved
Electrical Control System
Troubleshooting
2.4.2.3 Voltage protection(ODU E5)
Voltage protection
Check the voltage of
outdoor unit power supply,
whether the voltage
between L(L1) and N (L2) is
about 220~240VAC
No
Check the power supply
Yes
Check whether the voltage
of IPM board P and N is
normal? DC277-356V for
18-27KBtu/h; DC277-410V
for 36KBtu/h
No
Replace bridge rectifiers,
and then check whether the
system can run normally
Yes
Yes
No
Replace IPM board, and
then check whether the
system can run normally
Yes
No
Replace outdoor main board
Electrical Control System
Trouble is solved
115
Troubleshooting
2.4.2.4 Outdoor unit fan speed has been out of control (E8)
Shut off the power supply
and turn it on 1 minute
later. Is it still displaying
the error code?
No
The unit operates normally.
Yes
Shut off the power supply,
rotate the fan by hand.
Does it rotate properly?
No
Find out the cause and
have it solved. For
example, check
whether the fan is
blocked or the bearing
is broken?
No
Correct the connections.
Yes
Check the wires of fan
motor. Are all the
connections good?
Yes
Check whether the fan
motor is normal through
index 1?
No
Replace the fan
motor
If the
malfunction is
still existing,
replace the
main PCB
No
Yes
Check whether the main PCB is
normal through index 2?
No
Replace the
main PCB.
The
malfunction is
solved?
Yes
116
Electrical Control System
Troubleshooting
Index 1:
1.Outdoor DC fan motor(control chip is inside fan motor)
Measure the resistance value of each winding by using the tester. If any resistance value is zero, the fan
motor must have problems and need to be replaced.
NO.
1
2
3
4
5
6
Color
Red
--Black
White
Yellow
Blue
Index2:
1. Outdoor DC fan motor(control chip is inside fan motor)
Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor
connector. If the value of the voltage is not in the range showing in below table, the PCB must have
problems and need to be replaced.
DC motor voltage input and output
NO.
Color
Signal
Voltage
1
Red
Vs/Vm
140V~380V
2
---
---
---
3
Black
GND
0V
4
White
Vcc
13.5-16.5V
5
Yellow
Vsp
0~6.5V
6
Blue
FG
15V
Electrical Control System
117
Troubleshooting
2.4.2.5 High pressure protection (ODU P1) (For AWAU-YCZ430-H11, AWAU-YCZ536-H11)
High pressure protection
Judge 1: Whether the wiring
between the high pressure
switch and main control
board is connected well or
correctly
No
Connect it well
Yes
Judge 2: Whether
the high pressure
protector is broken
Method: Short connect the
high pressure protector
socket, check whether the
system can run normally
Yes
Replace high pressure protector
Yes
Stop the unit
No
Check whether
the refrigerant
system is ok
Judge 3: Check whether the
outdoor ambient
temperature is higher than
50℃
No
Judge 4: Check whether the
outdoor unit is bad
ventilation
Yes
Make the outdoor unit ventilate well
No
Judge 5: Check whether the
heat exchanger is dirty
Judge 6: Check whether the
refrigerant pipe is blocked
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
Replace outdoor main board
118
Electrical Control System
Troubleshooting
2.4.2.6 Low pressure protection (ODU P2) (For AWAU-YCZ430-H11, AWAU-YCZ536-H11)
Low pressure protection
Judge 1: Whether the
wiring between the low
pressure protector and main
control board is connected
well or correctly
No
Connect it well
Yes
Judge 2: Whether
the low pressure
protector is broken
Method: Short connect the
low pressure protector
socket, check whether the
system can run normally
Yes
Replace low pressure protector
Yes
Stop the unit
No
Check whether
the refrigerant
system is ok
Judge 3: Check whether the
outdoor ambient
temperature is too low
No
Judge 4: The
refrigerant of the
system is leakage
Method: Connect the pressure
gauge to the gauge joint of the
system, check whether the
pressure is lower than
0.14MPa
Yes
Leak hunting: Charge nitrogen or refrigerant
to the system, if the leakage is serious, there
will be distinct gas leakage “cici” sound; if the
leakage is slight, use the suds (mixture of
water and abluent is also ok if it can make
bubble) or electronic leak detector.
Yes
Let the refrigerant out, then use the high
pressure nitrogen or refrigerant to blow pipe,
vacuumize and charge the refrigerant again
No
Judge 5: The refrigerant
pipe is blocked
No
Replace outdoor main board
Electrical Control System
119
Troubleshooting
2.4.2.7 Current protection of compressor(ODU P3)
Current protection of compressor
Judge 1: Check whether the
input current of the power
supply wire is more than 15A
(For 27K(1x3) , it is 18.5A .For
36K(1x4), it is 23A
Yes
Check whether
the refrigerant
system is ok
Judge 2: Check whether the
outdoor ambient
temperature is higher than
50℃
Yes
Stop the unit
No
Judge 3: Check whether the
outdoor unit is bad ventilation
Yes
Make the outdoor unit ventilate well
No
Judge 4: Check whether the
heat exchanger is dirty
Yes
Clean the heat exchanger
No
Judge 5: 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,and check whether
the system can run normally
Yes
No
Replace the electric control box
120
Yes
Trouble is solved
Electrical Control System
Troubleshooting
2.4.2.8 Temperature protection of compressor discharge(ODU P4)
Temperature protection of
compressor discharge
Check whether the
compressor discharge temp.
is more than 115°C ?
Check whether the
refrigerant is leak
Yes
Yes
Stop leaking and add refrigerant
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
Method: Check whether the
resistance of compressor
discharge temp. sensor is
right refer to the Appendix 2
No
Replace the compressor discharge temp. sensor
Yes
Replace outdoor main board
Electrical Control System
Trouble is solved
121
Troubleshooting
2.4.2.9 High temperature protection of condenser(ODU P5)
When outdoor pipe temperature is more than 65°C, the unit will stop, and unit runs again when outdoor
pipe temp. less than 52°C.
High temperature protection of
condenser
Replace the temperature sensor
No
Check whether the
condenser temperature is
more than 65°C
Check whether the
resistance of condenser
temp. sensor is correct
refer to the Appendix 1
Yes
Replace outdoor main board
Yes
Judge 1: Check whether the
outdoor ambient
temperature is higher than
50℃
Yes
Stop the unit
No
Judge 2: Check whether the
heat exchanger is dirty
Yes
Clean the heat exchanger
No
No
Judge 3: The refrigerant
pipe is blocked
122
Yes
Let the refrigerant out, then use the high
pressure nitrogen or refrigerant to blow pipe,
vacuumize and charge the refrigerant again
Electrical Control System
Troubleshooting
2.4.2.10 IPM module protection(ODU P6)
IPM module protection
Check whether the voltage range
of P-N on IPM module is normal?
DC277-356V for 18-27KBtu/h;
DC277-410V for 36KBtu/h
Check whether the input
power supply is correct?
208-230V, 1N, 60Hz
No
Regulate it to correct, then
check whether the system
can work normally?
No
Yes
No
Yes
Check whether the connecting
line between main board and
the IPM module is connected
tightly
Connect it tightly,
check ok or not?
No
Check whether the
power supply line is
connected correctly and
tightly
Connect it correctly
and tightly, check ok
or not?
No
Yes
No
Check whether the connecting
line of the compressor is
connected correctly or tightly
No
Yes
Connect it well, check
ok or not?
No
Check whether the lines
in E-part box are
connected tightly
No
Connect it tightly,
check ok or not?
Yes
No
Yes
Replace the IPM module,
check whether the system can
work normally?
No
Check whether the bridge rectifiers are
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
No
Check if the outdoor fan
runs properly or the outdoor
unit ventilation is good.
Yes
Check whether the resistance of
the fan motor is normal. If not,
replace the fan motor. For other
models, refer to the solution of
fan speed has been out of
control malfunction . F i n d o u t
the cause and have it solved.
Yes
No
Replace the main board; check
whether the system can work
normally?
Yes
Replace the compressor, check
whether the system can work
normally?
Replace the bridge rectifiers
Check whether the connecting line of
every reactor is normal? If the line is
broken, the resistance of the two ports is
∞(models except for M4OA-36HFN1Q,M4OD-28HFN1-Q,
M5OC-36HFN1Q);Check whether the PFC module
broken (for M4OA-36HFN1-Q,M4OD28HFN1-Q, M5OC-36HFN1-Q)
No
Replace the connecting line or
reactor or replace the PFC
module(for M4OC-36HRFN1-M)
No
Yes
Yes
Yes
Trouble is solved
Electrical Control System
123
Troubleshooting
2.4.3 Main parts check
Spec.
Indoor unit
AWSI-HND012-N11
AWSI-HND018-N11
Model
AWSI-HND009-N11
Indoor fan motor
WZDK20-38G
WZDK20-38G
WZDK58-38G
Model
AWSI-HKD009-N11
AWSI-HKD012-N11
AWSI-HKD018-N11
Indoor fan motor
WZDK20-38G
WZDK30-38G
Model
RPG20E
AWSI-DCD012-N11
AWSI-CBD012-N11
AWSI-XAD012-N11
Indoor fan motor
WZDK27-38GS
WZDK37-38G
RD-280-20-8A
Model
AWAU-YCZ218-H11
AWAU-YCZ327-H11
AWAU-YCZ430-H11
Outdoor unit
124
Compressor
DA150S1C-20FZ
DA250S2C-30MT
DA250S2C-30MT
Outdoor fan motor
WZDK50-38G
WZDK72-38G
WZDK72-38G
Model
AWAU-YCZ536-H11
Compressor
TNB306FPGMC-L
Outdoor fan motor
WZDK180-38G
Electrical Control System
Troubleshooting
1. Temperature sensor checking
Disconnect the temperature sensor from PCB, measure the resistance value with a tester.
Temperature Sensors.
Room temp.(T1) sensor,
Indoor coil temp.(T2) sensor,
Outdoor coil temp.(T3) sensor,
Outdoor ambient temp.(T4) sensor,
Compressor discharge temp.(T5) sensor.
Measure the resistance value of each winding by using the multi-meter.
Electrical Control System
125
Troubleshooting
Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4,T2B (℃--K)
℃
126
K Ohm
115.266
℃
60
K Ohm
2.35774
℃
20
K Ohm
12.6431
℃
-20
100
K Ohm
0.62973
-19
108.146
21
12.0561
61
2.27249
101
0.61148
-18
101.517
22
11.5000
62
2.19073
102
0.59386
-17
96.3423
23
10.9731
63
2.11241
103
0.57683
-16
89.5865
24
10.4736
64
2.03732
104
0.56038
-15
84.2190
25
10.000
65
1.96532
105
0.54448
-14
79.3110
26
9.55074
66
1.89627
106
0.52912
-13
74.5360
27
9.12445
67
1.83003
107
0.51426
-12
70.1698
28
8.71983
68
1.76647
108
0.49989
-11
66.0898
29
8.33566
69
1.70547
109
0.48600
-10
62.2756
30
7.97078
70
1.64691
110
0.47256
-9
58.7079
31
7.62411
71
1.59068
111
0.45957
-8
56.3694
32
7.29464
72
1.53668
112
0.44699
-7
52.2438
33
6.98142
73
1.48481
113
0.43482
-6
49.3161
34
6.68355
74
1.43498
114
0.42304
-5
46.5725
35
6.40021
75
1.38703
115
0.41164
-4
44.0000
36
6.13059
76
1.34105
116
0.40060
-3
41.5878
37
5.87359
77
1.29078
117
0.38991
-2
39.8239
38
5.62961
78
1.25423
118
0.37956
-1
37.1988
39
5.39689
79
1.21330
119
0.36954
0
35.2024
40
5.17519
80
1.17393
120
0.35982
1
33.3269
41
4.96392
81
1.13604
121
0.35042
2
31.5635
42
4.76253
82
1.09958
122
0.3413
3
29.9058
43
4.57050
83
1.06448
123
0.33246
4
28.3459
44
4.38736
84
1.03069
124
0.32390
5
26.8778
45
4.21263
85
0.99815
125
0.31559
6
25.4954
46
4.04589
86
0.96681
126
0.30754
7
24.1932
47
3.88673
87
0.93662
127
0.29974
8
22.5662
48
3.73476
88
0.90753
128
0.29216
9
21.8094
49
3.58962
89
0.87950
129
0.28482
10
20.7184
50
3.45097
90
0.85248
130
0.27770
11
19.6891
51
3.31847
91
0.82643
131
0.27078
12
18.7177
52
3.19183
92
0.80132
132
0.26408
13
17.8005
53
3.07075
93
0.77709
133
0.25757
14
16.9341
54
2.95896
94
0.75373
134
0.25125
15
16.1156
55
2.84421
95
0.73119
135
0.24512
16
15.3418
56
2.73823
96
0.70944
136
0.23916
17
14.6181
57
2.63682
97
0.68844
137
0.23338
18
13.9180
58
2.53973
98
0.66818
138
0.22776
19
13.2631
59
2.44677
99
0.64862
139
0.22231
Electrical Control System
Troubleshooting
Appendix 2 Temperature Sensor Resistance Value Table for T5 (℃--K)
℃
K Ohm
℃
K Ohm
℃
K Ohm
℃
K Ohm
-20
542.7
20
68.66
60
13.59
100
3.702
-19
511.9
21
65.62
61
13.11
101
3.595
-18
483
22
62.73
62
12.65
102
3.492
-17
455.9
23
59.98
63
12.21
103
3.392
-16
430.5
24
57.37
64
11.79
104
3.296
-15
406.7
25
54.89
65
11.38
105
3.203
-14
384.3
26
52.53
66
10.99
106
3.113
-13
363.3
27
50.28
67
10.61
107
3.025
-12
343.6
28
48.14
68
10.25
108
2.941
-11
325.1
29
46.11
69
9.902
109
2.86
-10
307.7
30
44.17
70
9.569
110
2.781
-9
291.3
31
42.33
71
9.248
111
2.704
-8
275.9
32
40.57
72
8.94
112
2.63
-7
261.4
33
38.89
73
8.643
113
2.559
-6
247.8
34
37.3
74
8.358
114
2.489
-5
234.9
35
35.78
75
8.084
115
2.422
-4
222.8
36
34.32
76
7.82
116
2.357
-3
211.4
37
32.94
77
7.566
117
2.294
-2
200.7
38
31.62
78
7.321
118
2.233
-1
190.5
39
30.36
79
7.086
119
2.174
0
180.9
40
29.15
80
6.859
120
2.117
1
171.9
41
28
81
6.641
121
2.061
2
163.3
42
26.9
82
6.43
122
2.007
3
155.2
43
25.86
83
6.228
123
1.955
4
147.6
44
24.85
84
6.033
124
1.905
5
140.4
45
23.89
85
5.844
125
1.856
6
133.5
46
22.89
86
5.663
126
1.808
7
127.1
47
22.1
87
5.488
127
1.762
8
121
48
21.26
88
5.32
128
1.717
9
115.2
49
20.46
89
5.157
129
1.674
10
109.8
50
19.69
90
5
130
1.632
11
104.6
51
18.96
91
4.849
12
99.69
52
18.26
92
4.703
13
95.05
53
17.58
93
4.562
14
90.66
54
16.94
94
4.426
15
86.49
55
16.32
95
4.294
16
82.54
56
15.73
96
4.167
17
78.79
57
15.16
97
4.045
18
75.24
58
14.62
98
3.927
19
71.86
59
14.09
99
3.812
Electrical Control System
B(25/50)=3950K
R(90℃)=5KΩ±3%
127
Troubleshooting
2.Compressor checking
Measure the resistance value of each winding by using the tester.
Position
Blue - Red
128
Resistance Value
DA150S1C-20FZ
DA250S2C-30MT
TNB306FPGMC-L
0.95Ω(20℃)
0.55Ω(20℃)
0.53Ω(20℃)
Electrical Control System
Troubleshooting
3. IPM continuity check
Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital
tester to measure the resistance between P and UVWN; UVW and N.
Digital tester
Normal resistance value
Digital tester
Normal resistance value
(+)Red
(-)Black
(+)Red
(-)Black
U
N
∞
∞
V
U
(Several MΩ)
N
(Several MΩ)
P
W
V
(+)Red
W
4: Indoor AC Fan Motor
Measure the resistance value of each winding by using the tester.
Resistance Value
Position
Electrical Control System
RPG20E(TongDe)
RPG20E(Weilng)
Black - Red
415Ω±8% (20℃)
387Ω±8% (20℃)
Red - Yellow
396Ω±8% (20℃)
378Ω±8% (20℃)
Yellow - Blue
396Ω±8% (20℃)
378Ω±8% (20℃)
129
SERVICE MANUAL
Multi Splits Series