York YKCA-YKHA 18 User manual

4 Way Cassette
YKCA-YKHA 18 to 48
SERVICE MANUAL
YKCA-YKHA 18 · YKCA-YKHA 24
YKCA-YKHA 36 · YKCA-YKHA 48
SM-YKCA-YKHA-18-48GB 0508

How to read the model?
Y K H A 12 F S A A A A
Range:
F = Floor standing
H = High wall
M = Master range
P = Portable
Y = YORK
R = Everest front
Refrigerant type:
A = R22
B = R407C
C = R410A
Capacity Btu/h
Generation:
A = First
R = New remote
Voltages:
A =
(Out) 220-240/1/50 - (In) 220-240/1/50
C = (Out) 380/3/50 - (In) 220-240/1/50
Indoor options:
A = Standard
J = Bio Screen filter
** Omit for outdoor units
Outdoor options:
A = Standard
B = Low Ambient Kit
C = Power outdoor
* Omit for indoor units
Indoors:
A = Free matching multi
S = Single
T = Duct High Static
U = Duct standard case
Compressor type:
A = AC Inverter
D = DC Inverter
F = Fixed
M = Multi
* * *
Family:
A = Efficiency Ultra
E = Eco Ultra
H = Alps
J = Atlas
K = Cassette
L = Ultra
M = Multi Ultra
R = Multi Inverter
V = Inverter Ultra
U = Ducted unit
O = Floor / Ceiling
Type:
C = Set - Cooling only
D = Outdoor - Cooling only
E = Indoor - Cooling only
H = Set - Heat pump
J = Outdoor Heat pump
K = Indoor Heat pump
M = Multi Ultra
R = Multi Inverter
V = Inverter Ultra
U = Ducted unit
O = Floor / Ceiling

How to read the model?
Y K H A 12 F S A A A A
Range:
F = Floor standing
H = High wall
M = Master range
P = Portable
Y = YORK
R = Everest front
Refrigerant type:
A = R22
B = R407C
C = R410A
Capacity Btu/h
Generation:
A = First
R = New remote
Voltages:
A =
(Out) 220-240/1/50 - (In) 220-240/1/50
C = (Out) 380/3/50 - (In) 220-240/1/50
Indoor options:
A = Standard
J = Bio Screen filter
** Omit for outdoor units
Outdoor options:
A = Standard
B = Low Ambient Kit
C = Power outdoor
* Omit for indoor units
Indoors:
A = Free matching multi
S = Single
T = Duct High Static
U = Duct standard case
Compressor type:
A = AC Inverter
D = DC Inverter
F = Fixed
M = Multi
* * *
Family:
A = Efficiency Ultra
E = Eco Ultra
H = Alps
J = Atlas
K = Cassette
L = Ultra
M = Multi Ultra
R = Multi Inverter
V = Inverter Ultra
U = Ducted unit
O = Floor / Ceiling
Type:
C = Set - Cooling only
D = Outdoor - Cooling only
E = Indoor - Cooling only
H = Set - Heat pump
J = Outdoor Heat pump
K = Indoor Heat pump
M = Multi Ultra
R = Multi Inverter
V = Inverter Ultra
U = Ducted unit
O = Floor / Ceiling
Four Way Cassette Type
1. Features
2. Specification
3. Dimensions
4. Piping Diagrams
5. Wiring Diagrams
6. Capacity Tables
7. Air Velocity and Temperature Distributions
8. Electric Characteristics
9. Sound Levels

1. Features
(1) Low operation noise
---Streamline plate ensures quietness
---Creates natural and comfortable environment
(2) Efficient cooling
---Equal, fast and wide—range cooling
(3) The adoption of the most advanced 3- Dimensional Screw fan
---Reduces the air resistance passing through
---Smoothes the air flow
---Makes air speed distribution to the heat exchange uniform
(4) Fresh air makes life healthier and more comfortable.
(4) Improvement for easy installation and maintenance (only available for small four-way cassette)
---Little space is required for installation into a shallow ceiling
---Because of the compactness and weight reduction of the main unit and panel, all models can be
installed without a hoist
The sketch map of installation (compact type)

2. Specification
Compact type
Model YKCA 18 YKHA 18
Power supply Ph-V-Hz 1,220-240V,50Hz 1,220-240V,50Hz
Capacity
Btu/h 1800018000
Input W 20502050
Rated current A 8.5 9.8
Cooling EER Btu/w.h 8.8 8.8
Capacity Btu/h / 20500
Input W / 2150
Rated current A / 10.5
Heating COP Btu/w.h / 9.5
Moisture Removal l/h 1.9 1.9
Max. input consumption W 26002600
Max. input current A 13.5 13.5
Model PH330X2CS-8 PH330X2CS-8
Type ROTARY ROTARY
Brand TOSHIBA TOSHIBA
Supplier MIDEA-TOSHIBA MIDEA-TOSHIBA
Capacity Btu/h 1883418834
Input W 18701870
Rated current(RLA) A 8.75 8.75
Locked rotor Amp(LRA) A 36.8 36.8
Thermal protector INNER INNER
Capacitor uF 50/370 F/V 50/370 F/V
Compressor Refrigerant oil ml ESTER OIL VG74 750 ESTER OIL VG74 750
Model YDK45-4F YDK45-4F
Input W 63 63
Capacitor uF 2.5 F/450V 2.5 F/450V
Indoor fan motor Speed(hi/lo) r/min 930/830/660930/830/660
a.Number of rows 2 2
b.Tube pitch(a)x row pitch(b)
mm 21X13.37 21X13.37
c.Fin spacing
mm 1.3 1.3
d.Fin type Hydrophilic aluminium Hydrophilic aluminium
e.Tube outer dia.and type mm 7Ø Øinnergroove tube 7 innergroove tube
f.Coil length x height x width
mm 1185×210×26.74 1185×210×26.74
Indoor coil g.Number of circuits 5 5
Indoor air flow (Hi/Lo) m3/h 860/760860/760
Indoor noise level (Hi/Lo) dB(A) 43/40 43/40
Dimension (W*H*D)(body) mm 580×254×580580×254×580Indoor unit
Packing (W*H*D)(body) mm 750x340×750750x340×750

Dimension (W*H*D)(panel) mm 650x30x650650x30x650
Packing (W*H*D)(panel) mm 715x115x715715x115x715
Net/Gross weight(body) kg 21/30 21/30
Net/Gross weight(panel) kg 3/5 3/5
Model YDK53-6GC YDK53-6GC
Input W 110/104/98 110/104/98
Capacitor uF 2.5 uF/450V 2.5uF/450V
Outdoor fan
motor Speed (hi) r/min 750750
a.Number of rows 2 2
b.Tube pitch(a)x row pitch(b)
mm 25.4×22 25.4×22
c.Fin spacing mm 1.7 1.7
d.Fin type (code) Unhydrophilic aluminium Hydrophilic aluminium
e.Tube outer dia.and type mm 9.53, Innergroove tube 9ØØ .53 innergroove tube
f.Coil length x height x width
mm 775×660×44 775×660×44
Outdoor coil g.Number of circuits 3 3
Outdoor air flow m3/h 24002400
Outdoor noise level dB(A) 48 48
Dimension(W*H*D) mm 845×695×335845×695×335
Packing (W*H*D) mm 970X770X395970X770X395
Outdoor unit Net/ Gross weight kg 52/56 53/57
Refrigerant type/Quantity g R22/1150 R22/1950
Design pressure MPa 2.6/1.2 2.8/1.2
Liquid/ Gas side mm(inch) 6Ø Ø ØØ.35/ 12.7 6.35/ 12.7
Max. pipe length m 20 20
Refrigerant
piping
Max. difference in level
m 10 10
Operation temp ºC 17~3017~30
Ambient temp ºC 18~45 -7~45
Application area m234-49 34-49
indoor119/249/252119/249/252
outdoor 68/144/216 68/144/216
Qty’per 20’ /40’ /40'HQ
set 47/107/117 47/107/117
Notes:
1. Nominal cooling capacities are based on the following conditions:
Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. Piping: 7.5m(horizontal)
2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. Piping: 7.5m(horizontal)
3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room.

Normal type
Model
Power supply Ph-V-Hz 1,220-240V,50 1,220-240V,50
Capacity
Btu/h 1800018000
Capacity
kW 5.2 5.2
Input W 20002000
Rated current A 10 10
Cooling EER Btu/w.h 8.5 9
Capacity Btu/h / 20500
Capacity
kW / 6
Input W / 2000
Rated current A / 10
Heating COP Btu/w.h / 10.3
Moisture Removal l/h 1.9 1.9
Max. input consumption W 26002600
Max. input current A 12 13.7
Model PH330X2CS-8 PH330X2CS-8
Type ROTARY ROTARY
Brand MIDEA-TOSHIBA MIDEA-TOSHIBA
Supplier
MIDEA-TOSHIBA
(Guangdong)
MIDEA-TOSHIBA
(Guangdong)
Capacity Btu/h 1883418834
Input W 18701870
Rated current(RLA) A 8.75 8.75
Locked rotor Amp(LRA) A 36.8 36.8
Thermal protector INNER INNER
Capacitor uF 50/370 F/V 50/370 F/V
Compressor Refrigerant oil ml ESTER OIL VG74 750 ESTER OIL VG74 750
Model YDK54-6 YDK54-6
Input W 97 97
Capacitor uF 3.5 uF /450v 3.5 uF /450v
Indoor fan motor Speed (hi/lo) r/min 560/465/360560/465/360
Indoor coil Coil length x height x width mm 2000×170×27 2000×170×27
Indoor air flow (Hi/Lo) m3/h 1000/8301000/830
Indoor noise level (Hi/Lo) dB(A) 43/40 43/40
Dimension (W*H*D)(body) mm 840X240X840840X240X840
Indoor unit
Packing (W*H*D)(body) mm 1020X330X9301020X330X930
YKCA 18 YKHA 18

Dimension(W*H*D)(panel) mm 950X40X950950X40X950
Packing (W*H*D)(panel) mm 1030X145X10301030X145X1030
Net/Gross weight(body) kg 36/46 36/46
Net/Gross weight(panel) kg 6/11 6/11
Model YDK53-6GC YDK53-6GC
Input W 98 98
Capacitor uF 2.0 uF /450v 2.0 uF /450v
Outdoor fan motor Speed (hi/lo) r/min 640/440640/440
Outdoor air flow m3/h 20002000
Outdoor noise level dB(A) 52 52
Dimension(W*H*D) mm 845X695X335845X695X335
Packing (W*H*D) mm 970X770X395970X770X395
Outdoor unit Net/ Gross weight kg 52/57 57/62
Refrigerant type/Quantity g R22/1150 R22/1850
Design pressure MPa 2.6/1.2 2.6/1.2
Liquid side mm(inch) Ø6.35(1/4”) Ø6.35(1/4”)
Gas side mm(inch) Ø12.7(1/2”) Ø12.7(1/2”)
Max. pipe length m 20 20
Refrigerant piping Max. difference in level m 10 10
Operation temp ºC 17~3017~30
Ambient temp ºC 18~45 -7~45
Application area m230-40 30-40
Qty’per 20’ /40’ /40'HQ set 34/74/86 34/74/86
Notes:
1. Nominal cooling capacities are based on the following conditions:
Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. Piping: 7.5m(horizontal)
2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. Piping: 7.5m(horizontal)
3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room.

Model
Power supply Ph-V-Hz 1,220-240V,50 1,220-240V,50Hz
Capacity
Btu/h 2400024000
Capacity
kW 7 7
Input W 30503050
Rated current A 15 15
Cooling EER Btu/w.h 8.7 8.2
Capacity Btu/h / 28000
Capacity
kW / 8.2
Input W / 2950
Rated current A / 14
Heating COP Btu/w.h / 9.6
Moisture Removal l/h 2.4 2.4
Max. input consumption W 40003900
Max. input current A 19.5 21
Model THU33WC6-U THU33WC6-U
Type Rotary ROTARY
Brand HITACHI Hitachi
Supplier SHANGHAI HITACHI Hitachi(shanghai)
Capacity Btu/h 2849028490
Input W 26502650
Rated current(RLA) A 12.6 12.6
Locked rotor Amp(LRA) A 62 62
Thermal protector Internal INNER
Capacitor uF
60 F/400V(220V)
60 F/450V(240V)
60 F/400V(220V)
60 F/450V(240V)
Compressor Refrigerant oil ml SUNISO-4GSI 1050 SUNISO-4GSI 1050
Model YDK55-6 YDK55-6
Input W 128128
Capacitor uF 3.5 uF /450v 3.5 uF /450v
Indoor fan motor Speed (hi/lo) r/min 680/600/330680/600/330
Indoor coil Coil length x height x width mm 2000×170×27 2000×170×27
Indoor air flow (Hi/Lo) m3/h 1050/9001050/900
Indoor noise level (Hi/Lo) dB(A) 43/40 43/40
Dimension (W*H*D)(body) mm 840X240X840840X240X840
Indoor unit
Packing (W*H*D)(body) mm 1020X330X9301020X330X930
YKCA 24 YKHA 24

Dimension(W*H*D)(panel) mm 950X40X950950X40X950
Packing (W*H*D)(panel) mm 1030X145X10301030X145X1030
Net/Gross weight(body) kg 36/46 36/46
Net/Gross weight(panel) kg 6/11 6/11
Model YDK53-6K YDK65-6C1
Input W 130137.8
Capacitor uF 3.0 uF /450v 3.5 uF /450v
Outdoor fan motor Speed (hi/lo) r/min 750800/550
Outdoor air flow m3/h 30003000
Outdoor noise level dB(A) 52 52
Dimension(W*H*D) mm 895X860X330895X860X330
Packing (W*H*D) mm 1043X915X3951043X915X395
Outdoor unit Net/ Gross weight kg 62/64 68/70
Refrigerant type/Quantity g R22/1450 R22/2600
Design pressure MPa 2.6/1.2 2.6/1.2
Liquid side mm(inch) Ø 9.53(3/8”) 9.53(3/8”)
Gas side mm(inch) Ø
Ø
Ø16(5/8”) 16(5/8”)
Max. pipe length m 20 20
Refrigerant piping Max. difference in level m 10 10
Operation temp ºC 17~3017~30
Ambient temp ºC 18~45 -7~45
Application area m240-56 40-56
Qty’per 20’ /40’ /40'HQ set 30/63/66 30/63/66
Notes:
1. Nominal cooling capacities are based on the following conditions:
Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. Piping: 7.5m(horizontal)
2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. Piping: 7.5m(horizontal)
3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room.

Model
Power supply Ph-V-Hz 1,220-240V,50Hz 1,220-240V,50Hz
Capacity Btu/h 3600036000
Capacity kW 10.7 10.7
Input W 44004400
Rated current A 21 21
Cooling EER Btu/w.h 8.3 8.3
Capacity Btu/h / 40000
Capacity kW / 11.7
Input W / 4500
Rated current A / 8
Heating COP Btu/w.h / 8.9
Moisture Removal l/h 4 4
Max. input consumption W 55005500
Max. input current A 35 35
Model ZR47K3-PFJ-522 ZR47K3-PFJ-522
Type SCROLL SCROLL
Brand Copeland Copeland
Supplier Copeland(Suzhou) Copeland(Suzhou)
Capacity Btu/h 3900039000
Input W 35103510
Rated current(RLA) A 16.8 16.8
Locked rotor Amp(LRA) A 264264
Thermal protector INNER INNER
Capacitor uF / /
Compressor Refrigerant oil ml SONTEX 200 LT 1242 SONTEX 200 LT 1242
Model YDK56-6 YDK56-6
Input W 144144
Capacitor uF 3.5 uF /450v 3.5 uF /450v
Indoor fan motor Speed (hi/lo) r/min 680/600/330680/600/330
Indoor coil Coil length x height x width mm 2000×250×27 2000×250×27
Indoor air flow (Hi/Lo) m3/h 1600/14201600/1420
Indoor noise level (Hi/Lo) dB(A) 47/44 47/44
Dimension (W*H*D)(body) mm 840X310X840840X310X840
Indoor unit
Packing (W*H*D)(body) mm 1020X400X9301020X400X930
YKCA 36 YKHA 36

Dimension(W*H*D)(panel) mm 950X40X950950X40X950
Packing (W*H*D)(panel) mm 1030X145X10301030X145X1030
Net/Gross weight(body) kg 40/50 40/50
Net/Gross weight(panel) kg 6/11 6/11
Model YDK250-6D YDK250-6D
Input W 296296
Capacitor uF 10 uF /450V 10 uF /450V
Outdoor fan motor Speed (hi/lo) r/min 740740
Outdoor air flow m3/h 50005000
Outdoor noise level dB(A) 57 57
Dimension(W*H*D) mm 990X960X360990X960X360
Packing (W*H*D) mm 1120X1090X4351120X1090X435
Outdoor unit Net/ Gross weight kg 86/98 88/100
Refrigerant type/Quantity g R22/1700 R22/3100
Design pressure MPa 2.6/1.2 2.6/1.2
Liquid side mm(inch) 12Ø Ø
Ø Ø
.7(1/2”) 12.7(1/2”)
Gas side mm(inch) 19(3/4”) 19(3/4”)
Max. pipe length m 25 25
Refrigerant piping Max. difference in level m 10 10
Operation temp ºC 17~3017~30
Ambient temp ºC 18~45 -7~45
Application area m280-105 80-105
Qty’per 20’ /40’ /40'HQ set 25/55/67 25/55/67
Notes:
1. Nominal cooling capacities are based on the following conditions:
Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. Piping: 7.5m(horizontal)
2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. Piping: 7.5m(horizontal)
3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room.

Model
Power supply Ph-V-Hz 3N,380V,50Hz 3N,380V,50Hz
Capacity
Btu/h 3600036000
Capacity
kW 10.7 10.7
Input W 44004400
Rated current A 7.8 7.8
Cooling EER Btu/w.h 8.3 8.3
Capacity Btu/h / 40000
Capacity
kW / 11.7
Input W / 4500
Rated current A / 8
Heating COP Btu/w.h / 8.9
Moisture Removal l/h 4 4
Max. input consumption W 55005500
Max. input current A 10 10
Model C-SB303H8A C-SB303H8A
Type SCROLL SCROLL
Brand Sanyo Sanyo
Supplier Sanyo(dalian) Sanyo(dalian)
Capacity Btu/h 4026240262
Input W 36503650
Rated current(RLA) A 6.5 6.5
Locked rotor Amp(LRA) A 42 42
Thermal protector Internal INNER
Capacitor uF —— /
Compressor
Refrigerant oil ml 3GS 1360 3GS 1360
Model YDK56-6 YDK56-6
Input W 144144
Capacitor uF 3.5 uF /450v 3.5 uF /450v
Indoor fan motor
Speed (hi/lo) r/min 680/600/330680/600/330
Indoor coil Coil length x height x width mm 2000×250×27 2000×250×27
Indoor air flow (Hi/Lo) m3/h 1600/14201600/1420/
Indoor noise level (Hi/Lo) dB(A) 47/44 47/44
Dimension (W*H*D)(body) mm 840X310X840840X310X840
Indoor unit
Packing (W*H*D)(body) mm 1020X400X9301020X400X930
YKCA 36 YKHA 36

Dimension(W*H*D)(panel) mm 950X40X950950X40X950
Packing (W*H*D)(panel) mm 1030X145X10301030X145X1030
Net/Gross weight(body) kg 40/50 40/50
Net/Gross weight(panel) kg 6/11 6/11
Model YDK250-6D YDK250-6D
Input W 296296
Capacitor uF 10 uF /450V 10 uF /450V
Outdoor fan motor Speed (hi/lo) r/min 740740
Outdoor air flow m3/h 50005000
Outdoor noise level dB(A) 57 57
Dimension(W*H*D) mm 990X960X360990X960X360
Packing (W*H*D) mm 1120X1090X4351120X1090X435
Outdoor unit Net/ Gross weight kg 86/98 88/100
Refrigerant type/Quantity g R22/1700 R22/3100
Design pressure MPa 2.6/1.2 2.6/1.2
Liquid side mm(inch) 12.7(1/2”) 12.7(1/2”)
Gas side mm(inch) 19Ø Ø
Ø Ø
(3/4”) 19(3/4”)
Max. pipe length m 25 25
Refrigerant piping
Max. difference in level
m
ºC
ºC
10 10
Operation temp 17~3017~30
Ambient temp 18~45 -7~45
Application area m280-105 80-105
Qty’per 20’ /40’ /40'HQ set 25/55/67 25/55/67
Notes:
1. Nominal cooling capacities are based on the following conditions:
Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. Piping: 7.5m(horizontal)
2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. Piping: 7.5m(horizontal)
3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room.

Model
Power supply Ph-V-Hz 3N,380V,50Hz 3N,380V,50Hz
Capacity Btu/h 4800048000
Capacity kW 14 14
Input W 54005400
Rated current A 9.2 9.2
Cooling EER Btu/w.h 8.9 8.9
Capacity Btu/h / 53000
Capacity kW / 15.5
Input W / 5500
Rated current A / 9.4
Heating COP Btu/w.h / 9.7
Moisture Removal l/h 4.4 4.4
Max. input consumption W 60005800
Max. input current A 11.5 10.5
Model VR61KF-TFP-542 VR61KF-TFP-542
Type SCROLL SCROLL
Brand Copeland Copeland
Supplier Copeland(Suzhou) Copeland(Suzhou)
Capacity Btu/h 5100051000
Input W 46364636
Rated current(RLA) A 9.4 9.4
Locked rotor Amp(LRA) A 61 61
Thermal protector Internal INNER
Capacitor uF / /
Compressor Refrigerant oil ml 3GS 1360 3GS 1360
Model YDK56-6 YDK56-6
Input W 144144
Capacitor uF 3.5 uF /450v 3.5 uF /450v
Indoor fan motor Speed (hi/lo) r/min 680/600/330680/600/330
Indoor coil Coil length x height x width mm 2000×250×27 2000×250×27
Indoor air flow (Hi/Lo) m3/h 1750/15001750/1500
Indoor noise level (Hi/Lo) dB(A) 47/44 47/44
Dimension (W*H*D)(body) mm 840X310X840840X310X840
Packing (W*H*D)(body) mm 1020X400X9301020X400X930
Indoor unit
Dimension(W*H*D)(panel) mm 950X40X950950X40X950
YKCA 48 YKHA 48

Packing (W*H*D)(panel) mm 1030X145X10301030X145X1030
Net/Gross weight(body) kg 40/50 40/50
Net/Gross weight(panel) kg 6/11 6/11
Model YDK250-6D YDK250-6D
Input W 296296
Capacitor uF 10 uF /450V 10 uF /450V
Outdoor fan motor Speed (hi/lo) r/min 740740
Outdoor air flow m3/h 50005000
Outdoor noise level dB(A) 57 57
Dimension(W*H*D) mm 990X960X360990X960X360
Packing (W*H*D) mm 1120X1090X4351120X1090X435
Outdoor unit Net/ Gross weight kg 88/100 90/102
Refrigerant type/Quantity g R22/1700 R22/3100
Design pressure MPa 2.6/1.2 2.6/1.2
Liquid side mm(inch) Ø
Ø
Ø
Ø
12.7(1/2”) 12.7(1/2”)
Gas side mm(inch) 19(3/4”) 19(3/4”)
Max. pipe length m 25 25
Refrigerant piping Max. difference in level m 10 10
Operation temp ºC 17~3017~30
Ambient temp ºC 18~45 -7~45
Application area m280-105 80-105
Qty’per 20’ /40’ /40'HQ set 25/55/67 25/55/67
Notes:
1. Nominal cooling capacities are based on the following conditions:
Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. Piping: 7.5m(horizontal)
2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. Piping: 7.5m(horizontal)
3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room.

3. Dimensions
YKCA-YKHA 18 (compact)
580(Body) 67
600(Ceiling hole)
650(Panel)
401(Hook-location)
611(Hook-location)
580(Body)
42228.5
600(Ceilinghole)
650(Panel)
Drain sideand
Tubingside
A
600
Hook
265
Panel
Body
Nut
Ceiling
YKCA-YKHA 18 / YKCA-YKHA 24
Drain hole
Pump inspect hole
Gas side
E-parts box
Liquid side
4-install hanger

YKCA-YKHA 36 / YKCA-YKHA 48
310
Pump inspect hole
Drain hole
Gas side
E-parts box
liquid side
4-install hanger

4. Piping Diagrams
Heat pump
T1
T2
T3
T4
Indoor units
Outdoor unit
T5
stop valve
room temp. sensor
evaporator temp. sensor
4-way valve
compressor
low-pressure accumulator
condenser temp. sensor
ambient temp. sensor
High pressure switch
Discharge temp. sensor
Muffle
stop valve
Throttle capiliary
Check valve
filter
Cooling only
T1
T2
T3
T4
Indoor units
Outdoor unit
T5
stop valve
room temp. sensor
evaporator temp. sensor
Throttle capiliary
compressor
condenser temp. sensor
ambient temp. sensor
Discharge temp. sensor
stop valve
filter
Remark:
1. For YKJ-18 YKJ-24and , accumulator is not included.
2. For YKJ-36 and YKJ-48 , check valve and auxiliary capillary is not included.

5. Wiring Diagrams
YKCA 18 (compact)
Indoor unit
CN5
10
XS6
XP6
MAI N BOARD
CN7
KM1
CN19
RT2
RED
RT1
XS1
XP1
CN2CN3
XT1 L
CN1
XS2
XP2
T4
CN11CN10
K3
CN1- CN120 CN170
CN19 0 2CON10
CN9
FAN1
SWI NG
N1
BLACK
CN12
5
5
XP7
XS7
CN4
XS8
PUMP
Y&G
XS4
2
2
XP8
CN8
XP4
CAP1
6
WHI TE
3
XS1- XS8
XP1- XP8
XT1
RL6
T4
K3
KM1
SWING
RT2
RT1
FAN1
CN17
2
10
RL6
CODE
CAP1
P.C BOARD SOCKETS
COMPRESSOR CONTROL WIRE
CONNECTORS
7- WAY TERMI NAL
COMPRESSOR RELAY
WATER LEVEL SENSOR
PIPE TEMP ERATURE SENSOR
ROOM TEMPERATURE SENSOR
I NDOOR FAN
SWIN G MOTOR
TRANSFORMER
CONNECTORS
INDOOR FAN CAPACITOR
NAME
PUMP PUMP
2(N)
RED
RED BLUE
Y&G
WHI TE
Outdoor unit
N 3 4
FAN1
CAP1
COMP
C
XT1
SR
WHITE
CAP3
C O DE PA RT NA M E
COMP. CAPCAP1
OUTDOOR FAN
FAN1
OUTDOOR FAN
CAP
CAP3
XT1
CONNECTORXP1 XS1
COMPRESSORCOMP
T O I ND O O R U N IT
5 - WAY TERMINA L
RT3 OUTDOOR PI PE
TEMP. SENSOR
Y /G
( OUTDOOR)
WIRI NG DIAGRAM
WHITE
BLACK
WHITE
BLACK
1
BL UE
RED
Y/G
BROWN GREEN
XT2 2 - WAY T ERMINAL