AUX ALCA-H**R1AA User manual

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
1
Service Manual
Light Commercial Air Conditioners
(T1 , 50Hz , R410a , ON/OFF)
Version:01 2017/01

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
2
Content
Part 1. General information............................................................ 3
Part 2. Indoor unit............................................................................ 6
Part 3 Universal outdoor unit....................................................... 83
Part 4 Trouble shooting...............................................................116
Part 5 Controller.......................................................................... 146
Part 6. Sensor resistance table.................................................. 155

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
3
Part 1. General information
1.Nomenclature....................................................................................4
2.Unit appearance................................................................................5

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
4
1.Nomenclature

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
5
2.Unitappearance
Series
Picture of the indoor unit
Four-way
Cassette
12k Btu/h
18k Btu/h
24k Btu/h
36k Btu/h
48k Btu/h
60k Btu/h
Ceiling
&Floor
18k Btu/h
24k Btu/h
36k Btu/h
48k Btu/h
60k Btu/h
Mid ESP
Duct
18k Btu/h
24k Btu/h
36k Btu/h
48k Btu/h
60k Btu/h
Series
Picture of the indoor unit
Universal
outdoor
unit
12k Btu/h
18k Btu/h
24k Btu/h
36k Btu/h
48k Btu/h
60 k Btu/h

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
6
Part 2. Indoor unit
Four-way cassette.................................................................................7
Ceiling & floor type.............................................................................35
Middle static pressure duct type.......................................................61

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
7
Four-way cassette
1.Feature............................................................................................................................8
2.Specfication ....................................................................................................................9
3.Capacity Amendment....................................................................................................17
4.Demension....................................................................................................................19
5.Electrical wiring and connection....................................................................................20
6.Installation.....................................................................................................................25
7.Explode view.................................................................................................................31

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
8
1.Function introduction
Type
Item
ALCA-H**R1AA/AlCA-H**R1E
ALCA-H**R1AA
12/4
18/4
24/4
36/4
36/5
48/5
60/5
Protection
High pressure protection
－
－
－
－
●
●
●
Low pressure protection
－
－
－
－
●
●
●
Compressor overloading protection
●
●
●
●
●
●
●
High exh. temperate protection
－
－
－
－
●
●
●
Phase protection
(Phase-loss, phase- reverse)
－
－
－
－
●
●
●
Over-heating protection
●
●
●
●
●
●
●
Anti-freezing protection
●
●
●
●
●
●
●
Sensor failure alarm
●
●
●
●
●
●
●
Failure code display
●
●
●
●
●
●
●
Comfort
Cooling
●
●
●
●
●
●
●
Heating
●
●
●
●
●
●
●
3-Speed
●
●
●
●
●
●
●
Auto-restart(Optional)
●
●
●
●
●
●
●
Anti-cold wind
●
●
●
●
●
●
●
Afterheat wind blowing
●
●
●
●
●
●
●
Timing ON/OFF
●
●
●
●
●
●
●
Operation
Time display
●
●
●
●
●
●
●
Operation mode display
●
●
●
●
●
●
●
Fan speed display
●
●
●
●
●
●
●
Defrost display
●
●
●
●
●
●
●
Timing ON/OFF display
●
●
●
●
●
●
●
Wind angle display
●
●
●
●
●
●
●
Sleeping mode display
●
●
●
●
●
●
●
Running
Auto start
●
●
●
●
●
●
●
Dehumidifying
●
●
●
●
●
●
●
Auto defrost
●
●
●
●
●
●
●
Ventilation function
●
●
●
●
●
●
●
Low ambient temperature cooling
●
●
●
●
●
●
●
Health
Washable air filter
●
●
●
●
●
●
●
Fresh air interface
●
●
●
●
●
●
●
Installation
Left/right drainage(optional)
－
－
－
－
－
－
－
Left/right pipe connection(optional)
－
－
－
－
－
－
－
Down/back air suction(optional)
－
－
－
－
－
－
－
Installation indicating board
●
●
●
●
●
●
●
Remarks: ●Stands for “YES” －Stands for “NO”

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
9
2.Specfication
Model
Indoor Unit
ALCA-H12/4R1AA
ALCA-H18/4R1AA
Panel
MB13
MB13
Outdoor Unit
AL-H12/4R1D(U)
AL-H18/4R1D(U)
Factory Model
Indoor Unit
ALCa-H12A4/R1C7-B7
ALCa-H18A4/R1C7-B7
Panel
MB13
MB13
Outdoor Unit
AL-H12A4/R1(T)-B7
AL-H18A4/R1(T)-B7
Code
Indoor Unit
16106022000055
16106022000054
Panel
16108004000004
16108004000004
Outdoor Unit
16107022000017
16107022000019
Power Supply
V~,Hz,Ph
220~240,50,1
220~240,50,1
Capacity
Cooling
Btu/h
12000
18000
kW
3.60
5.30
Heating
Btu/h
13500
20000
kW
3.90
5.80
Electric Data
Rated Cooling Power
Input
kW
1.19
1.76
Rated Heating Power
Input
kW
1.20
1.80
Rated Cooling Current
A
5.49
8.08
Rated Heating Current
A
5.63
8.27
Performance
EER
W/W
3.03
3.01
COP
W/W
3.25
3.22
Indoor Fan Motor
Model
YDK25-6E1
YDK30-6E1
Brand
WELLING/Sinjun
WELLING/Sinjun
Output Power x Fan
Quantity
W
25*1
30*1
Capacitor
uF
1.5
2.5
Speed (Hi/Mi/Lo)
r/min
850/750/650
920/850/750
Indoor Coil
Number Of Rows
2
2
Tube Pitch(a)x Row
Pitch(b)
mm
20.5×12.7
20.5×12.7
Fin Pitch
mm
1.5
1.5
Fin Material
Hydrophilic aluminum fin
Tube Outside Dia.and
Type
mm
φ7，Inner grooved
φ7，Inner grooved
Coil Length x Height x
Width
mm
1160×184.5×25.4
1160×184.5×25.4
Heat Exchanging Area
m2
4.32
5.76
Indoor Unit
Indoor Air Flow
(Hi/Mi/Lo)
m3/h
620/496/434
900/720/630
Noise Level(Hi/Mi/Lo)
dB(A)
41/38/32
41/38/32
Net Dimension
mm
615×615×263
615×615×263

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
10
(W*H*D)
Packing Dimension
(W*H*D)
mm
700×700×330
700×700×330
Net Weight
kg
17.5
18
Gross Weight
kg
21.5
22
Panel
Net Dimension
(W*H*D)
mm
650×650×55
650×650×55
Packing Dimension
(W*H*D)
mm
700×700×330
700×700×330
Net weight
kg
3
3
Gross weight
kg
5
5
Refrigerant Pipe
Liquid Side
mm
6.35
6.35
Gas Side
mm
12.7
12.7
Max. Refrigerant Pipe
Length
m
15
20
Max. Level Difference
m
10
15
Setting Temperature Range
°C
16~32
16~32
Operation Ambient
Temperature Range
Cooling
°C
-15~49
-15~49
Heating
°C
-15~24
-15~24
Application Area
m2
13-21
21-35
Connection Wiring
Power Wiring( Indoor)
mm2
3×2.5mm2
3×4mm2
Power Wiring( Outdoor)
mm2
/
/
Signal Wiring
mm2
3×2.5mm2+2×1mm2
3×2.5mm2+2×1mm2
Wireless Remote Controller Model Type
YKR-K/001E
YKR-K/001E
Stufing Quantity
20/40/40H
Set
66/137/161
66/137/161
Note:
1. Working condition of the cooling capacity measured: Indoor temperature 27°C DB, 19°C WB;Outdoor
35°C DB, 24°C WB;
2. Working condition of the heating capacity measured: Indoor temperature 20°C DB, 19°C WB;Outdoor
7°C DB, 6°C WB;
3. Parameters above are all measured when the connecting pipe is 5 meters.
4. Parameters above may be modified as product improvement. We keep the right to change the product
specifications without prior notice, please take the parameters listed on the nameplate as criterion.

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
11
Model
Indoor Unit
ALCA-H24/4R1AA
ALCA-H36/5R1AA
Panel
MB12
MB12
Outdoor Unit
AL-H24/4R1D(U)
AL-H36/5R1D(U)
Factory Model
Indoor Unit
ALCa-H24B4/R1EB-B7
ALCa-H36A5/R1EB-B7
Panel
MB12
MB12
Outdoor Unit
AL-H24A4/R1(T)-B7
AL-H36A5/R1(T)-B7
Code
Indoor Unit
16106022000053
16106022000056
Panel
16108002000007
16108002000007
Outdoor Unit
16107022000018
16107022000020
Power Supply
V~,Hz,Ph
220~240,50,1
380~415,50,3
Capacity
Cooling
Btu/h
24000
36000
kW
7.20
10.60
Heating
Btu/h
27500
40000
kW
8.08
11.70
Electric Data
Rated Cooling Power
Input
kW
2.39
3.77
Rated Heating Power
Input
kW
2.50
3.50
Rated Cooling Current
A
11.06
6.76
Rated Heating Current
A
11.59
6.28
Performance
EER
W/W
3.01
2.81
COP
W/W
3.23
3.34
Indoor Fan Motor
Model
XD30A
YDK45-6Q
Brand
WELLING/Sinjun
WELLING/Sinjun
Output Power x Fan
Quantity
W
30*1
45*1
Capacitor
uF
2.5
3
Speed (Hi/Mi/Lo)
r/min
500/430/320
650/520/450
Indoor Coil
Number Of Rows
2
2
Tube Pitch(a)x Row
Pitch(b)
mm
20.5×12.7
20.5×12.7
Fin Pitch
mm
1.4
1.4
Fin Material
Hydrophilic aluminum fin
Tube Outside Dia.and
Type
mm
φ7，Inner grooved
φ7，Inner grooved
Coil Length x Height x
Width
mm
2142×205×25.4
2142×205×25.4
Heat Exchanging Area
m2
11.34
12.76
Indoor Unit
Indoor Air Flow
(Hi/Mi/Lo)
m3/h
1300/1040/910
1500/1200/1050
Noise Level(Hi/Mi/Lo)
dB(A)
45/42/36
48/45/39
Net Dimension
mm
835×835×250
835×835×250

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
12
(W*H*D)
Packing Dimension
(W*H*D)
mm
910×910×310
910×910×310
Net Weight
kg
24
24
Gross Weight
kg
27.5
27.5
Panel
Net Dimension
(W*H*D)
mm
950×950×55
950×950×55
Packing Dimension
(W*H*D)
mm
1000x1000x100
1000x1000x100
Net weight
kg
5
5
Gross weight
kg
7
7
Refrigerant Pipe
Liquid Side
mm
9.52
9.52
Gas Side
mm
15.88
15.88
Max. Refrigerant Pipe
Length
m
30
50
Max. Level Difference
m
15
30
Setting Temperature Range
°C
16~32
16~32
Operation Ambient
Temperature Range
Cooling
°C
-15~49
-15~49
Heating
°C
-15~24
-15~24
Application Area
m2
28-47
42-70
Connection Wiring
Power Wiring( Indoor)
mm2
/
3×1mm2
Power Wiring( Outdoor)
mm2
3×6mm2
5×4mm2
Signal Wiring
mm2
3×2.5mm2+3×1mm2
2×1mm2
Wireless Remote Controller Model Type
YKR-K/001E
YKR-K/001E
Stufing Quantity
20/40/40H
Set
42/82/92
30/70/79
Note:
1. Working condition of the cooling capacity measured: Indoor temperature 27°C DB, 19°C WB;Outdoor
35°C DB, 24°C WB;
2. Working condition of the heating capacity measured: Indoor temperature 20°C DB, 19°C WB;Outdoor
7°C DB, 6°C WB;
3. Parameters above are all measured when the connecting pipe is 5 meters.
4. Parameters above may be modified as product improvement. We keep the right to change the product
specifications without prior notice, please take the parameters listed on the nameplate as criterion.

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
13
Model
Indoor Unit
ALCA-H48/5R1AA
ALCA-H60/5R1AA
Panel
MB12
MB12
Outdoor Unit
AL-H48/5R1D(U)
AL-H60/5R1D(U)
Factory Model
Indoor Unit
ALCa-H48A5/R1EB-B7
ALCa-H60A5/R1EB-B7
Panel
MB12
MB12
Outdoor Unit
AL-H48A5/R1(T)-B7
AL-H60A5/R1(T)-B7
Code
Indoor Unit
16106022000057
16106022000058
Panel
16108002000007
16108002000007
Outdoor Unit
16107022000022
16107022000023
Power Supply
V~,Hz,Ph
380~415,50,3
380~415,50,3
Capacity
Cooling
Btu/h
48000
60000
kW
14.00
17.60
Heating
Btu/h
53000
63500
kW
15.50
18.50
Electric Data
Rated Cooling Power
Input
kW
4.87
5.71
Rated Heating Power
Input
kW
5.13
6.00
Rated Cooling Current
A
8.88
10.42
Rated Heating Current
A
9.33
10.88
Performance
EER
W/W
2.87
3.08
COP
W/W
3.02
3.08
Indoor Fan Motor
Model
XD80A
XD80A
Brand
WELLING/Sinjun
WELLING/Sinjun
Output Power x Fan
Quantity
W
80*1
80*1
Capacitor
uF
3
4
Speed (Hi/Mi/Lo)
r/min
695/585/495
695/585/495
Indoor Coil
Number Of Rows
2
3
Tube Pitch(a)x Row
Pitch(b)
mm
20.5×12.7
20.5×12.7
Fin Pitch
mm
1.4
1.4
Fin Material
Hydrophilic aluminum fin
Tube Outside Dia.and
Type
mm
φ7，Inner grooved
φ7，Inner grooved
Coil Length x Height x
Width
mm
2142×246×25.4
2142×246×25.4
Heat Exchanging Area
m2
15.60
15.60
Indoor Unit
Indoor Air Flow
(Hi/Mi/Lo)
m3/h
1800/1440/1260
1800/1440/1260
Noise Level(Hi/Mi/Lo)
dB(A)
50/47/41
50/47/41
Net Dimension
(W*H*D)
mm
835×835×290
835×835×290

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
14
Packing Dimension
(W*H*D)
mm
910×910×350
910×910×350
Net Weight
kg
26.5
26.5
Gross Weight
kg
30.5
30.5
Panel
Net Dimension
(W*H*D)
mm
950×950×55
950×950×55
Packing Dimension
(W*H*D)
mm
1000x1000x100
1000x1000x100
Net weight
kg
5
5
Gross weight
kg
7
7
Refrigerant Pipe
Liquid Side
mm
9.52
9.52
Gas Side
mm
19.05
19.05
Max. Refrigerant Pipe
Length
m
50
50
Max. Level Difference
m
30
30
Setting Temperature Range
°C
16~32
16~32
Operation Ambient
Temperature Range
Cooling
°C
-15~49
-15~49
Heating
°C
-15~24
-15~24
Application Area
m2
56-93
64-107
Connection Wiring
Power Wiring( Indoor)
mm2
3×1mm2
3×1mm2
Power Wiring( Outdoor)
mm2
5×4mm2
5×4mm2
Signal Wiring
mm2
2×1mm2
2×1mm2
Wireless Remote Controller Model Type
YKR-K/001E
YKR-K/001E
Stufing Quantity
20/40/40H
Set
22/50/55
22/50/55
Note:
1. Working condition of the cooling capacity measured: Inside the room DB temperature 27°C,WB
temperature19°C;Outside of the room DB temperature 35°C,WB temperature 24°C;Working condition
of the heating capacity measured:Inside the room DB temperature 20°C,Outside of the room DB
temperature 7°C,WB temperature 6°C.
2. Parameters above are all measured when the connecting pipe is 5 meters.
3. Parameters above may be modified as product improvement. We keep the right to change the product
specifications without prior notice, please take the parameters listed on the nameplate as criterion.

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
15
Model
Indoor
ALCA-H36/4R1E
Panel
MB12
Outdoor
AL-H36/4R1(U)
Factory Model
Indoor
ALCa-H36A4/R1-EA
Panel
MB12
Outdoor
AL-H36A4/R1(T)
Code
Indoor
16106021000005
Panel
16108002000007
Outdoor
16107022000001
Power Supply
V~,Hz,Ph
220~240,50,1
Capacity
Cooling
Btu/h
36000
KW
10.60
Heating
Btu/h
40000
KW
11.70
Electric Data
Rated Cooling Power
Input
KW
3.77
Rated Heating Power
Input
KW
3.50
Rated Cooling Current
A
17.3
Rated Heating Current
A
16.6
Performance
EER
W/W
2.81
COP
W/W
3.34
Indoor Fan Motor
Model
YDK45-6Q
Brand
WELLING/Sinjun
Output Power x Fan
quantity
W
45*1
Capacitor
uF
3
Speed (Hi/Mi/Lo)
r/min
650/520/450
Indoor Coil
Number Of Row
2
Tube Pitch(a)x Row
Pitch(b)
mm
20.5×12.7
Fin Pitch
mm
1.4
Fin Material
louver
Tube Outside Dia.and
Material
mm
φ7，Inner grooved
Coil Length x Height x
Width
mm
2014×205×25.4
Heat Exchanging Area
m2
12.18
Indoor Unit
Indoor Air Flow
(Hi/Mi/Lo)
m3/h
1500/1200/1050
Noise Level(Hi/Mi/Lo)
dB(A)
48/45/39
Net Dimension
mm
835×835×250

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
16
(W*H*D)
Packing Dimension
(W*H*D)
mm
910×910×310
Net Weight
Kg
24
Gross Weight
Kg
27.5
Panel
Net Dimension
(W*H*D)
mm
950×950×55
Packing Dimension
(W*H*D)
mm
1000x1000x100
Net weight
Kg
5
Gross weight
Kg
7
Refrigerant Pipe
Liquid Side
mm
9.52
Gas Side
mm
15.88
Max. Refrigerant Pipe
Length
m
50
Max. Difference In
Level
m
30
Operation Temperature Range
°C
16~32
Ambient Temperature Range(Cooling/Heating)
°C
-5~49/-15~24
Application Area
m2
42-70
Connection Wiring
Power Wiring( Indoor)
3×4mm2
3×4mm2
Power Wiring( Outdoor)
5×4mm2
5×4mm2
Signal Wiring
2×1mm2
2×1mm2
Wireless Remote Controller
YKR-K/001E
Qty’per 20’& 40’&40HQ
(Only For Reference)
Set
30/70/79
Note:
1. Working condition of the cooling capacity measured: Inside the room DB temperature 27°C,WB
temperature19°C;Outside of the room DB temperature 35°C,WB temperature 24°C;Working condition
of the heating capacity measured:Inside the room DB temperature 20°C,Outside of the room DB
temperature 7°C,WB temperature 6°C.
2. Parameters above are all measured when the connecting pipe is 5 meters.
3. Parameters above may be modified as product improvement. We keep the right to change the product
specifications without prior notice, please take the parameters listed on the nameplate as criterion.

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
17
3.CapacityAmendment
3.1 Amendment coefficient of cooling capacity under different indoor/outdoor temperature
Indoor temperature°C
Outdoor temperature°C(DB)
DB
WB
25
30
35
40
43
45
47
49
23
16
0.98
0.94
0.89
0.85
0.82
0.79
0.74
0.71
25
18
1.05
1
0.95
0.90
0.87
0.82
0.77
0.72
27
19
1.1
1.05
1
0.95
0.91
0.87
0.84
0.79
28
20
1.12
1.07
1.02
0.96
0.93
0.90
0.86
0.81
30
22
1.19
1.13
1.08
1.02
0.99
0.96
0.91
0.88
32
24
1.26
1.20
1.15
1.08
1.05
1.02
0.97
0.92
Actual cooling capacity calculation:
Actual cooling capacity=amendment coefficient of cooling capacity × nominal cooling capacity
——nominal cooling capacity could be found from the performance parameters list
——amendment coefficient of cooling capacity could be found from table above.
Amendment coefficient of heating capacity under different indoor/outdoor temperature
Actual heating capacity calculation:
Actual heating capacity=amendment coefficient of heating capacity × nominal heating capacity
——nominal heating capacity could be found from the performance parameters list
——amendment coefficient of heating capacity could be found from table above.
Indoor DB
temperature °C
Outdoor temperature °C(WB)
-15
-10
-5
0
6
10
15
16
0.45
0.53
0.65
0.80
1.02
1.13
-
18
0.47
0.55
0.61
0.76
1.02
1.12
-
20
0.46
0.54
0.6
0.75
1
1.11
1.25
21
0.42
0.49
0.59
0.72
0.99
1.1
1.24
22
0.41
0.49
0.58
0.71
0.97
1.09
1.23
24
0.39
0.45
0.56
0.7
0.96
1.08
1.22

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
18
3.2 Amendment coefficients of heating and cooling capacity under different height drop
Different Cooling Capacity modified coefficients at different height:
Note:
H = Height of Outdoor Unit －Height of Indoor Unit
Different Heating Capacity modified coefficients at different height:
Note:
H = Height of Outdoor Unit －Height of Indoor Unit

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
19
4.Demension
ALCA-H12/4R1AA, ALCA-H18/4R1AA
ALCA-H24/4R1AA，ALCA-H36/4R1E ,ALCA-H36/5R1AA
ALCA-H48/5R1AA，ALCA-H60/5R1AA

AUX Light Commercial Air Conditioners T1,50Hz, R410a,ON/OFF
20
5.Electrical wiring and connection
ALCA-H12/4R1AA, ALCA-H18/4R1AA