SERVICE MANUAL

Convertible Console
YOHC 12 to 60
SERVICE MANUAL
YOHC 12 · YOHC 18 · YOHC 24
YOHC 36 · YOHC 48 · YOHC 60
SM-YOHC-12-60GB 03-07
Contents
Part 1 General information………………………………………………….
Part 2 Indoor units……………………………………………………………
Part 3 Outdoor units………………………………………………………..
Part 4 Installation…………………...………………………………………
Part 5 Control………………………………………………………………..
Part 1
General Information
1. Model names of Indoor/Outdoor Units……………………………………
2. External Appearance………………………………………………………...
3. Nomenclature…………………………………………………………………
4. Features………………………………………………………………………..
Model Names of Indoor/ Outdoor Units
Model Names of Indoor Units:
YOKC-12 YOKC-18 YOKC-24 YOKC-30
YOKC-36 YOKC- 48 YOKC-60
Model Names of Outdoor Units:
YOJC-12 YOJC-18 YOJC-24 YOJC-30
YOJC-36 YOJC-48 YOJC-60
1. External Appearance
1.1 Indoor units
1.2 Outdoor units
2. Nomenclature
How to read the model?
Y O H C 24 F S B* A* * A R
Range:
F = Floor standing
H = High wall
M = Master range
P = Portable
Y = YORK
R = Everest front
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
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
Refrigerant type:
A = R22
B = R407C
C = R410A
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
Capacity Btu/h
3. Features
4.1. New design, more modern and elegant appearance;
4.2. Convenient installation;
4.3. Two direction auto swing (vertical & horizontal) and wide angle air flow;
4.4. Three level fan speed, more humanism design, meets different air-supply requirement;
4.5. Water proof by utilizing the absorbing plastic film on water collector;
4.6. Easy operation. Auto-restart function, remote control and optional wire control method;
4.7. Low noise level plus compact size;
4.8. Universal outdoor design.
Part 2
Indoor units
Ceiling & Floor Type…………………………………………………………
Ceiling & Floor Type
1. Features……………………………………………………………………………………………..
2. Specification………………………………………………………………………………………..
3. Dimensions………………………………………………………………………………………..
4. Service space……………………………………………………………………………………..
5. Piping diagrams…………………………………………………………………………………..
6. Wiring diagrams…………………………………………………………………………………..
7. Capacity Tables…………………………………………………………………………………...
8. Air Velocity and Temperature Distributions………………………………………………….
9. Electric Characteristics………………………………………………………………………….
10. Sound Levels……………………………………………………………………………………...
11. Exploded view…………………………………………………………………………………….
1. Features
1.1. New design, more modern and elegant appearance.
1.2. Convenient installation
--The ceiling type can be easily installed into a corner of the ceiling even if the ceiling is very narrow
--It is especially useful when installation of an air conditioner in the center of the ceiling is impossible due to
a structure such as one lighting
1.3. Two direction auto swing (vertical & horizontal) and wide angle air flow
--Air flow directional control minimizes the air resistance and produces wilder air flow to vertical direction.
--The range of horizontal air discharge is widened which secures wider air flow distribution to provide more
comfortable air circulation no matter where the unit is set up
1.4. Three level fan speed, more humanism design, meets different air-supply requirement.
1.5. Water proof by utilizing the absorbing plastic film on water collector
1.6. Easy operation. Auto-restart function, remote control and optional wire control method.
1.7. Low noise level plus compact size
--Shape of the blades has been improved to prevent noise caused by turbulence.
2. Specification
Model
Power supply
Cooling
Ph-V-Hz
YOHC -12
YOHC -18
YOHC -24
1,220-240V,50Hz
1,220-240V,50Hz
1,220-240V,50Hz
12000
18000
24000
Capacity
Btu/h
Capacity
kW
3.5
5.4
7.1
Input
W
1200
1900
2700
Rated current
A
6.0
8.5
12.0
Btu/W.h
10.0
9.7
8.9
13500
20000
26000
EER
Capacity
Btu/h
Capacity
kW
4
5.9
7.7
Input
W
1130
1850
2800
Rated current
A
5.0
8.0
12.5
Btu/W.h
12.0
10.9
9.3
L/h
1.2
1.8
2.4
Max. input consumption
W
1500
2400
3300
Max. current
A
7.0
11.5
14.5
Starting current
A
26
36.8
61
PA140X2C-4FT
PA225X2CS-4KU
PA290X3CS-4MU1
ROTARY
ROTARY
ROTARY
Brand
MIDEA-TOSHIBA
MIDEA-TOSHIBA
MIDEA- TOSHIBA
Supplier
MIDEA-TOSHIBA
MIDEA-TOSHIBA
MIDEA-TOSHIBA
Btu/h
11567
18834
24498
W
1145
1870
2430
Rated current(RLA)
A
5.3
8.75
11.4
Locked rotor Amp(LRA)
A
26
36.8
61
INNER
INNER
INNER
35/370 µF/V
50/370 µF/V
50/400 µF/V
Heating
COP
Moisture Removal
Model
Type
Capacity
Compressor Input
Thermal protector
Capacitor
uF
Refrigerant oil
ml RB68AF/T68/Α68tf
Model
480
ESTER OIL VG74
750
ESTER OIL CG74 950
YSK25-6L
YSK55-4L
YSK55-4L
Indoor fan
Input
W
33.4/31.1/29.5
115/95/78
115/95/78
motor
Capacitor
uF
1.2uF/450V
2.5uF/450V
2.5uF/450V
r/min
756/666/592
1310/ 1190/1040
1310/ 1190/1040
2
3
3
Speed(hi/lo)
Number of rows
Indoor coil
Tube pitch(a)x row pitch(b)
mm
25.4×22
25.4×22
25.4×22
Fin spacing
mm
1.8
1.8
1.8
Hydrophilic aluminum
Hydrophilic aluminum
Hydrophilic aluminum
Fin type
Tube outside dia. and type
mm
Ф9.53 innergroove tube
Ф9.53 innergroove tube
Ф9.53 innergroove tube
Coil length x height x width
mm
804×254×44
804×254×66
804×254×66
3
m /h
600/480/400
800/600/500
1200/900/700
dB(A)
43/41/38
43/41/38
45/43/40
Indoor air flow(Hi/Mid/Lo)
Indoor noise level (Hi/Mid/Lo)
Dimension (W*H*D)(body)
Indoor unit Packing
(W*H*D)(body)
Net/Gross weight(body)
mm
995×660×198
995×660×198
995×660×198
mm
1089×744×296
1089×744×296
1089×744×296
27/33
27/33
27/33
YDK24-6F
YDK53-6K
YDK53-6H
W
56
130
138
uF
2.5uF/450V
3uF/450V
3µF/450V
800
750
800
2
2
2
kg
Model
Outdoor fan Input
motor
Capacitor
Speed
r/min
Number of rows
Tube pitch(a)x row pitch(b)
mm
21x13.37
25.4×22
25.4×22
Fin spacing
mm
1.5
1.7
1.5
Unhydrophilic aluminum
Hydrophilic aluminum
Hydrophilic aluminum
Outdoor coil Fin type
Tube outside dia. and type
mm
Φ7,Innergroove tube
Ф9.53,Innergroove tube
Ф9.53,innergroove tube
Coil length x height x width
mm
651x559x26.7
775×660×44
850×810×44
2
3
4
m /h
2100
2400
3000
dB(A)
43
48
55
Number of circuits
Outdoor air flow
Outdoor noise level
Outdoor
unit
Dimension(W*H*D)
mm
760×590×285
845×695×335
895×860×330
Packing (W*H*D)
mm
887x655x355
970X770X395
1043X915X395
Net/ Gross weight
kg
44/48
52/56
68/70
g
R410A/1120
R410A/2050
R410A/2600
4.2/2.5
4.2/2.5
4.2/2.5
mm(inch)
6.35 (1/4)
6.35 (1/4)
9.53 (3/8)
mm(inch)
12.7 (1/2)
12.7 (1/2)
16 (5/8)
Refrigerant type/Quantity
Design pressure (high side/low side)
Liquid side
Refrigerant Gas side
piping
3
MPa
Max. pipe length
m
25
25
30
Max. difference in level
m
15
15
15
Operation temp
ºC
17~30
17~30
17~30
Ambient temp
ºC
-7~45
-7~45
-7~45
2
18~26
34~49
40~56
63/138/155
49/104/126
44/94/101
Application area
Qty’per 20’& 40’Fcl
m
Pieces
Model
Power supply
Cooling
Ph-V-Hz
YOHC -30
YOHC -30
YOHC -36
3,380V,50Hz
1,220-240V,50Hz
1,220-240V,50Hz
30000
30000
36,000
Capacity
Btu/h
Capacity
kW
9.2
9.2
10.5
Input
W
3750
3750
3750
Rated current
A
6.3
16.3
16.3
Btu/W.h
8.0
8.0
9.6
32000
32000
39000
EER
Capacity
Btu/h
Capacity
kW
9.4
9.4
11.4
Input
W
3500
3500
3500
Rated current
A
5.2
15.2
15.2
Btu/W.h
9.2
9.2
11.2
L/h
3
3
3.6
Max. input consumption
W
4620
4620
4620
Max. current
A
7.1
21
21
Starting current
A
61
97
97
C-SBN303H8D
C-SBN301H5D
C-SBN301H5D
Type
SCROLL
SCROLL
SCROLL
Brand
SANYO
SANYO
SANYO
SANYO(Dalian)
SANYO
SANYO
Btu/h
33438
33438
33438
Input
W
3650
3650
3650
Rated current(RLA)
A
6.58
17.65
17.65
Locked rotor Amp(LRA)
A
61
97
97
INNER
INNER
INNER
/
60uF/440V
60uF/440V
FV68S 1700
FV68S 1700
YSK80-4A
YSK80-4A
YSK80-4A
Heating
COP
Moisture Removal
Model
Supplier
Capacity
Compressor
Thermal protector
Capacitor
uF
Refrigerant oil
ml DAPHNE FV68S 1700
Model
Indoor fan
Input
W
142/134/132
142/134/132
142/134/132
motor
Capacitor
uF
3.5uF/450V
3.5uF/450V
3.5uF/450V
1310/1200/1000
1310/1200/1000
1310/1200/1000
3
3
3
Speed(hi/lo)
r/min
Number of rows
Indoor coil
Tubepitch(a)x row pitch(b)
mm
25.4×22
25.4×22
25.4×22
Fin spacing
mm
1.7
1.7
1.7
Hydrophilic aluminum
Hydrophilic aluminum
Hydrophilic aluminum
Fin type
Tube outside dia.and type
mm Ф9.53, inner groove tube Ф9.53, inner groove tube Ф9.53, inner groove tube
Coil length x height x width
mm
905×203×66
905×203×66
905×203×66
3
m /h
1200/1000/800
1400/1200/1000
1400/1200/1000
dB(A)
45/43/40
45/43/40
45/43/40
Indoor air flow(Hi/Mid/Lo)
Indoor noise level (Hi/Mid/Lo)
Indoor unit
Dimension (W*H*D)(body)
mm
1285×660×198
1285×660×198
1285×660×198
Packing
mm
1365×744×278
1365×744×278
1365×744×278
34/42
34/42
34/42
YDK250-6D
YDK250-6D
YDK250-6D
(W*H*D)(body)
Net/Gross weight(body)
kg
Model
Outdoor fan
motor
Input
W
307
307
307
Capacitor
uF
10µF/450V
10 uF/450V
10 uF/450V
740
740
740
2
2
2
Speed
r/min
Number of rows
Outdoor coil
Tube pitch(a)x row pitch(b)
mm
25.4×22
25.4×22
25.4×22
Fin spacing
mm
1.7
1.7
1.7
Unhydrophilic aluminium unhydrophilic aluminium
Fin type
Tube outside dia.and type
mm Ф9.53,innergroove tube
Coil length x height x width
mm
Outdoor noise level
Outdoor unit
Ф9.53, inner groove tube Ф9.53, inner groove tube
955×915×44
955×915×44
955×915×44
8
8
8
m /h
5000
5000
5000
dB(A)
57
57
57
Number of circuits
Outdoor air flow
unhydrophilic aluminium
3
Dimension(W*H*D)
mm
990×960×360
990×960×360
990×960×360
Packing (W*H*D)
mm
1120X1090X435
1120X1090X435
1120X1090X435
Net/ Gross weight
kg
90/102
90/102
90/102
g
R410A/3100
R410A 3450
R410A 3450
4.2/2.5
4.2/2.5
4.2/2.5
Refrigerant type/Quantity
Design pressure (high side/low side)
MPa
Liquid side
mm(inch)
12.7 (1/2)
12.7 (1/2)
12.7 (1/2)
Refrigerant
Gas side
mm(inch)
19 (3/4)
19 (3/4)
19 (3/4)
piping
Max. pipe length
m
30
30
30
Max. difference in level
m
20
20
20
Operation temp
ºC
17~30
17~30
17~30
Ambient temp
ºC
-7~45
-7~45
-7~45
2
50~75
60~85
60~85
27/55/62
27/55/62
27/55/62
Application area
Qty’per 20’& 40’Fcl
m
Pieces
Model
Power supply
Cooling
Ph-V-Hz
YOHC -36
YOHC -48
YOHC -60
3,380V,50Hz
3,380V,50Hz
3,380V,50Hz
36000
48000
60,000
Capacity
Btu/h
Capacity
kW
10.5
14
17
Input
W
3750
4700
6000
Rated current
A
6.6
8.2
9.8
Btu/W.h
9.6
10.2
10.0
39000
52000
68,000
EER
Capacity
Btu/h
Capacity
kW
11.4
15.2
20
Input
W
3700
4900
6000
Rated current
A
6.5
8.6
9.8
Btu/W.h
10.6
10.6
11.4
L/h
3.8
4.8
6
Max. input consumption
W
4400
5870
7500
Max. current
A
8.0
10.7
12.8
Starting current
A
61
66
67
C-SBN303H8D
C-SBN373H8D
C-SBN453H8D
Type
SCROLL
SCROLL
SCROLL
Brand
SANYO
SANYO
SANYO
SANYO(Dalian)
SANYO(Dalian)
SANYO(Dalian)
Btu/h
33438
48109
55957
Input
W
3650
4750
5750
Rated current(RLA)
A
6.58
8.22
9.77
Locked rotor Amp(LRA)
A
61
66
67
INNER
INNER
INNER
Heating
COP
Moisture Removal
Model
Supplier
Capacity
Compressor
Thermal protector
Capacitor
uF
/
/
/
Refrigerant oil
ml
DAPHNE FV68S 1700
DAPHNE FV68S 1700
DAPHNE FV68S 1700
YSK80-4A
YSK59-4A
YSK59-4A
Model
Indoor fan
Input
W
142/134/132
118/108/101
118/108/101
motor
Capacitor
uF
3.5uF/450V
2.5uF/450V
2.5uF/450V
1310/1200/1000
820/695/620
820/695/620
3
3
3
Speed(hi/lo)
r/min
Number of rows
Indoor coil
Tube pitch(a)x row pitch(b)
mm
25.4×22
25.4X22
25.4X22
Fin spacing
mm
1.7
1.7
1.7
Hydrophilic aluminum
Hydrophilic aluminum
Hydrophilic aluminum
Ф9.53, inner groove tube
Ф9.53, inner groove tube
mm
905×203×66
1150x254x66
1150x254x66
3
m /h
1400/1200/1000
2000/1800/1600
2000/1800/1600
dB(A)
45/43/40
47/45/42
47/45/42
Fin type
Tube outside dia. and type
Coil length x height x width
Indoor air flow(Hi/Mid/Lo)
Indoor noise level (Hi/Mid/Lo)
mm
Ф9.53, inner groove
tube
Indoor unit
Dimension (W*H*D)(body)
mm
1285×660×198
1670×680×240
1670×680×240
Packing
mm
1365×744×278
1764×760×329
1764×760×329
34/42
52/62
52/62
YDK250-6D
YDK65-6; YDK65-6F
YDK65-6F; YDK65-6F
(W*H*D)(body)
Net/Gross weight(body)
kg
Model
Outdoor fan
motor
Input
W
307
138+156
138+156
Capacitor
uF
10 uF/450V
3.5×2 uF/450V
3.5×2 uF/450V
740
800
800
2
2
2
Speed
r/min
Number of rows
Outdoor coil
Tube pitch(a)x row pitch(b)
mm
25.4×22
25.4×22
25.4×22
Fin spacing
mm
1.7
1.8
1.8
Fin type
unhydrophilic aluminum
Hydrophilic aluminum
Hydrophilic aluminum
Tube outside dia. and type
Ф9.53, inner groove tube
Ф9.53, inner groove tube
955×915×44
715×1220×44
715×1220×44
8
4
4
m /h
5000
6000
6000
dB(A)
57
58
58
Coil length x height x width
mm
mm
Number of circuits
3
Outdoor air flow
Outdoor noise level
Outdoor unit
Ф9.53, inner groove
tube
Dimension(W*H*D)
mm
990×960×360
940×1245×340
940×1245×340
Packing (W*H*D)
mm
1120X1090X435
1058X1380X435
1058X1380X435
Net/ Gross weight
kg
90/102
112/127
112/127
g
R410A/3100
R410A/4000
R410A/4200
4.2/2.5
4.2/2.5
4.2/2.5
Refrigerant type/Quantity
Design pressure (high side/low side)
MPa
Liquid side
mm(inch)
12.7 (1/2)
12.7 (1/2)
12.7 (1/2)
Refrigerant
Gas side
mm(inch)
19 (3/4)
19 (3/4)
19 (3/4)
piping
Max. pipe length
m
30
50
50
Max. difference in level
m
20
30
30
17~30
17~30
17~30
-7~45
-7~45
-7~45
60~85
80~105
95~120
27/55/62
25/50/54
25/50/54
Operation temp
Ambient temp
Application area
Qty’per 20’& 40’Fcl
2
m
Pieces
Notes: 1. Nominal cooling capacities are based on the following conditions:
Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB;
2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB;
3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from
an anechoic room.
3. Dimensions
3.1. YOKC-12 YOKC-18 YOKC-24
995
980
Strengthener
402
4-12¡ Á
18 Overhanging hole
Drain point
Connecting point of
refrigerant pipe
Connecting point of
refrigerant pipe
(Liquid side)
(gas side)
3.2. YOKC-30
YOKC-36
1285
980
Strengthener
402
4-12¡ Á
18 Overhanging hole
Drain point
Connecting point of
refrigerant pipe
Connecting point of
refrigerant pipe
(Liquid side)
(gas side)
3.3. YOKC-48 YOKC-60
1670
980
Strengthener
402
4-12¡ Á
18 Overhanging hole
Drain point
Connecting point of
refrigerant pipe
Connecting point of
refrigerant pipe
(gas side)
(Liquid side)
4. Service space
>600mm
>600mm
5. Piping Diagrams
Remark: 1. For YOJC-12 and YOJC-18, accumulator is not included.
2. For YOJC-30, YOJC-36 and YOJC-48, check valve and auxiliary capillary is not included.
6. Wiring Diagrams
6.1 Cooling & Heating
6.1.1 YOKC-12
DI SPLAY
BOARD
XP1
XS1
I NDOOR
W
I RI NG DI AGRAM
CN12
(W
HI TE)
CN10
CN13
( RED)
CODE
CN15
CAP1
RL8
CN1- CN24 P. C. BOARD SOCKETS
T4
TRANSFORMER
FAN1
I NDOOR FAN
CONNECTORS
XP1~4
MAI N CONTROL BOARD
CN3
CN5
CN1
CN2
PART NAM
E
I NDOOR FAN CAP
CN16
XS1~4
T4
XP3
XS3
Y/ G
RT2
PI PE TEMP. SENSOR
5- W
AY TERMI NAL
6- W
AY TERMI NAL
RELAY FOR
COMPRESSOR
LEVEL SW
I NG MOTOR
PLUMB SW
I NG MOTOR
KM1
GM
1
W
HI TE
W
HI TE
ROOM TEMP. SENSOR
XT1
XT2
FAN1
CONNECTORS
RT1
GM2
BLUE( N)
RED
BLACK
BLACK( C)
RED
W
HI TE
BLACK
BLACK( L)
BLUE( S. V)
XT1
L
3 4 5
W
HI TE( T3)
XT2
N 1 2(N)
BLACK( E)
KM1
BLACK( HI )
RED( LO)
CAP1
Y/ G
Y/ G
TO OUTDOOR UNI T
POW
ER
TO OUTDOOR UNI T
6.1.2. YOKC -18
DI SPLAY
BOARD
XP1
XS1
I NDOOR
W
I RI NG DI AGRAM
CN12
(W
HI TE)
CN10
CN13
( RED)
CODE
CN15
CAP1
RL8
CN1- CN24 P. C. BOARD SOCKETS
T4
TRANSFORMER
FAN1
I NDOOR FAN
CONNECTORS
XP1~4
MAI N CONTROL BOARD
CN3
CN5
CN1
CN2
CN16
XS1~4
T4
XP3
XS3
Y/ G
W
HI TE
ROOM TEMP. SENSOR
RT2
PI PE TEMP. SENSOR
5- W
AY TERMI NAL
KM1
GM
1
W
HI TE
GM2
BLUE( N)
RED
BLACK( C)
BLACK
RED
W
HI TE
BLACK
BLACK( L)
BLACK( HI )
RED( LO)
BLUE( S. V)
CAP1
XT1
L
BLACK( E)
3 4 5
W
HI TE( T3)
XT2
TO OUTDOOR UNI T
N 1 2(N)
Y/ G
Y/ G
TO OUTDOOR UNI T
POW
ER
CONNECTORS
RT1
XT1
XT2
FAN1
KM1
PART NAM
E
I NDOOR FAN CAP
6- W
AY TERMI NAL
RELAY FOR
COMPRESSOR
LEVEL SW
I NG MOTOR
PLUMB SW
I NG MOTOR
6.1.3. YOKC -24
6.1.4. YOKC -30
6.1.5. YOKC -36
6.1.6. YOKC -48
YOKC -60
7. Capacity Tables
Model: YOHC-12
Cooling
OUTDOOR TEMPERATURE DRY
Indoor
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
50ºC
Total capacity kW
3.38
3.23
3.12
2.94
2.82
2.73
2.65
Sensitive capacity kW
2.70
2.59
2.49
2.35
2.26
2.19
2.12
Input kW.
0.76
0.86
0.97
1.08
1.19
1.30
1.40
Total capacity kW
3.70
3.54
3.41
3.22
3.09
2.99
2.90
Sensitive capacity kW
2.96
2.83
2.73
2.58
2.47
2.40
2.32
Input kW.
0.80
0.91
1.03
1.14
1.25
1.37
1.48
Total capacity kW
4.03
3.85
3.71
3.50
3.36
3.26
3.15
Sensitive capacity kW
3.22
3.08
2.97
2.80
2.69
2.60
2.52
Input kW.
0.84
0.96
1.08
1.20
1.32
1.44
1.56
Total capacity kW
4.63
4.43
4.27
4.03
3.86
3.74
3.62
Sensitive capacity kW
3.70
3.54
3.41
3.22
3.09
2.99
2.90
Input kW.
0.97
1.10
1.24
1.38
1.52
1.66
1.79
Conditions
21ºC D
15ºC W
24ºC D
17ºC W
27ºC D
19ºC W
32ºC D
23ºC W
Heating
OUTDOOR CONDITIONS
Indoor
24ºC D
12ºC D
7ºC D
4ºC D
0ºC D
-5ºC D
-7ºC D
-15ºC D
Conditions
18ºC W
11ºC W
6ºC W
3ºC W
-1ºC W
-6ºC W
-8ºC W
-16ºC W
Capacity kW
6.56
5.24
4.37
3.93
3.71
3.28
3.06
2.84
Input kW.
1.95
1.56
1.30
1.23
1.17
1.10
1.04
0.91
Capacity kW
6.16
4.92
4.10
3.69
3.49
3.08
2.87
2.67
Input kW.
1.83
1.46
1.22
1.16
1.10
1.04
0.98
0.85
Capacity kW
5.70
4.56
3.80
3.42
3.23
2.85
2.66
2.47
Input kW.
1.70
1.36
1.13
1.07
1.02
0.96
0.90
0.79
Capacity kW
5.24
4.20
3.50
3.15
2.97
2.62
2.45
2.27
Input kW.
1.56
1.25
1.04
0.99
0.94
0.88
0.83
0.73
Capacity kW
4.56
3.65
3.04
2.74
2.58
2.28
2.13
1.98
Input kW.
1.36
1.08
0.90
0.86
0.81
0.77
0.72
0.63
15ºC
18ºC
20ºC
22ºC
27ºC
Model: YOHC -18
Cooling
OUTDOOR TEMPERATURE DRY
Indoor
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
50ºC
Total capacity kW
5.22
4.99
4.81
4.54
4.35
4.22
4.08
Sensitive capacity kW
4.17
3.99
3.85
3.63
3.48
3.37
3.27
Input kW.
1.20
1.37
1.54
1.71
1.88
2.05
2.22
Total capacity kW
5.71
5.46
5.27
4.97
4.77
4.62
4.47
Sensitive capacity kW
4.57
4.37
4.21
3.97
3.82
3.70
3.58
Input kW.
1.26
1.44
1.62
1.81
1.99
2.17
2.35
Total capacity kW
6.21
5.94
5.72
5.40
5.18
5.02
4.86
Sensitive capacity kW
4.97
4.75
4.58
4.32
4.15
4.02
3.89
Input kW.
1.33
1.52
1.71
1.90
2.09
2.28
2.47
Total capacity kW
7.14
6.83
6.58
6.21
5.96
5.78
5.59
Sensitive capacity kW
5.71
5.46
5.27
4.97
4.77
4.62
4.47
Input kW.
1.53
1.75
1.97
2.19
2.40
2.62
2.84
Conditions
21ºC D
15ºC W
24ºC D
17ºC W
27ºC D
19ºC W
32ºC D
23ºC W
Heating
OUTDOOR CONDITIONS
Indoor
24ºC D
12ºC D
7ºC D
4ºC D
0ºC D
-5ºC D
-7ºC D
-15ºC D
Conditions
18ºC W
11ºC W
6ºC W
3ºC W
-1ºC W
-6ºC W
-8ºC W
-16ºC W
Capacity kW
10.35
8.28
6.90
6.21
5.87
5.18
4.83
4.49
Input kW.
3.19
2.55
2.13
2.02
1.91
1.81
1.70
1.49
Capacity kW
9.72
7.78
6.48
5.83
5.51
4.86
4.54
4.21
Input kW.
3.00
2.40
2.00
1.90
1.80
1.70
1.60
1.40
Capacity kW
9.00
7.20
6.00
5.40
5.10
4.50
4.20
3.90
Input kW.
2.78
2.22
1.85
1.76
1.67
1.57
1.48
1.30
Capacity kW
8.28
6.62
5.52
4.97
4.69
4.14
3.86
3.59
Input kW.
2.55
2.04
1.70
1.62
1.53
1.45
1.36
1.19
Capacity kW
7.20
5.76
4.80
4.32
4.08
3.60
3.36
3.12
Input kW.
2.22
1.78
1.48
1.41
1.33
1.26
1.18
1.04
15ºC
18ºC
20ºC
22ºC
27ºC
Model: YOHC -24
Cooling
OUTDOOR TEMPERATURE DRY
Indoor
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
50ºC
Total capacity kW
6.86
6.56
6.32
5.96
5.73
5.55
5.37
Sensitive capacity kW
5.49
5.25
5.06
4.77
4.58
4.44
4.29
Input kW.
1.70
1.94
2.19
2.43
2.67
2.92
3.16
Total capacity kW
7.51
7.19
6.92
6.53
6.27
6.07
5.88
Sensitive capacity kW
6.01
5.75
5.54
5.23
5.02
4.86
4.70
Input kW.
1.80
2.05
2.31
2.57
2.82
3.08
3.33
Total capacity kW
8.17
7.81
7.53
7.10
6.82
6.60
6.39
Sensitive capacity kW
6.53
6.25
6.02
5.68
5.45
5.28
5.11
Input kW.
1.89
2.16
2.43
2.70
2.97
3.24
3.51
Total capacity kW
9.39
8.98
8.65
8.17
7.84
7.59
7.35
Sensitive capacity kW
7.51
7.19
6.92
6.53
6.27
6.07
5.88
Input kW.
2.17
2.48
2.79
3.11
3.42
3.73
4.04
Conditions
21ºC D
15ºC W
24ºC D
17ºC W
27ºC D
19ºC W
32ºC D
23ºC W
Heating
OUTDOOR CONDITIONS
Indoor
24ºC D
12ºC D
7ºC D
4ºC D
0ºC D
-5ºC D
-7ºC D
-15ºC D
Conditions
18ºC W
11ºC W
6ºC W
3ºC W
-1ºC W
-6ºC W
-8ºC W
-16ºC W
Capacity kW
13.80
11.04
9.20
8.28
7.82
6.90
6.44
5.98
Input kW.
4.83
3.86
3.22
3.06
2.90
2.74
2.58
2.25
Capacity kW
12.96
10.37
8.64
7.78
7.34
6.48
6.05
5.62
Input kW.
4.54
3.63
3.02
2.87
2.72
2.57
2.42
2.12
Capacity kW
12.00
9.60
8.00
7.20
6.80
6.00
5.60
5.20
Input kW.
4.20
3.36
2.80
2.66
2.52
2.38
2.24
1.96
Capacity kW
11.04
8.83
7.36
6.62
6.26
5.52
5.15
4.78
Input kW.
3.86
3.09
2.58
2.45
2.32
2.19
2.06
1.80
Capacity kW
9.60
7.68
6.40
5.76
5.44
4.80
4.48
4.16
Input kW.
3.36
2.69
2.24
2.13
2.02
1.90
1.79
1.57
15ºC
18ºC
20ºC
22ºC
27ºC
Model: YOHC -30
Cooling
OUTDOOR TEMPERATURE DRY
Indoor
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
50ºC
Total capacity kW
8.89
8.50
8.19
7.73
7.42
7.19
6.96
Sensitive capacity kW
7.11
6.80
6.55
6.18
5.94
5.75
5.56
Input kW.
2.36
2.70
3.04
3.38
3.71
4.05
4.39
Total capacity kW
9.73
9.31
8.97
8.46
8.13
7.87
7.62
Sensitive capacity kW
7.79
7.45
7.18
6.77
6.50
6.30
6.09
Input kW.
2.49
2.85
3.21
3.56
3.92
4.28
4.63
Total capacity kW
10.58
10.12
9.75
9.20
8.83
8.56
8.28
Sensitive capacity kW
8.46
8.10
7.80
7.36
7.07
6.84
6.62
Input kW.
2.63
3.00
3.38
3.75
4.13
4.50
4.88
Total capacity kW
12.17
11.64
11.21
10.58
10.16
9.84
9.52
Sensitive capacity kW
9.73
9.31
8.97
8.46
8.13
7.87
7.62
Input kW.
3.02
3.45
3.88
4.31
4.74
5.18
5.61
Conditions
21ºC D
15ºC W
24ºC D
17ºC W
27ºC D
19ºC W
32ºC D
23ºC W
Indoor
24ºC D
12ºC D
7ºC D
4ºC D
0ºC D
-5ºC D
-7ºC D
-15ºC D
Conditions
18ºC W
11ºC W
6ºC W
3ºC W
-1ºC W
-6ºC W
-8ºC W
-16ºC W
Capacity kW
16.22
12.97
10.81
9.73
9.19
8.11
7.57
7.03
Input kW.
6.04
4.83
4.03
3.82
3.62
3.42
3.22
2.82
Capacity kW
15.23
12.18
10.15
9.14
8.63
7.61
7.11
6.60
Input kW.
5.67
4.54
3.78
3.59
3.40
3.21
3.02
2.65
Capacity kW
14.10
11.28
9.40
8.46
7.99
7.05
6.58
6.11
Input kW.
5.25
4.20
3.50
3.33
3.15
2.98
2.80
2.45
Capacity kW
12.97
10.38
8.65
7.78
7.35
6.49
6.05
5.62
Input kW.
4.83
3.86
3.22
3.06
2.90
2.74
2.58
2.25
Capacity kW
11.28
9.02
7.52
6.77
6.39
5.64
5.26
4.89
Input kW.
4.20
3.36
2.80
2.66
2.52
2.38
2.24
1.96
15ºC
18ºC
20ºC
22ºC
27ºC
Model: YOHC -36
Cooling
OUTDOOR TEMPERATURE DRY
Indoor
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
50ºC
10.14
9.70
9.35
8.82
8.47
8.20
7.94
Sensitive capacity kW
8.11
7.76
7.48
7.06
6.77
6.56
6.35
Input kW.
2.36
2.70
3.04
3.38
3.71
4.05
4.39
Total capacity kW
11.11
10.63
10.24
9.66
9.27
8.98
8.69
Sensitive capacity kW
8.89
8.50
8.19
7.73
7.42
7.19
6.96
Input kW.
2.49
2.85
3.21
3.56
3.92
4.28
4.63
Total capacity kW
12.08
11.55
11.13
10.50
10.08
9.77
9.45
Sensitive capacity kW
9.66
9.24
8.90
8.40
8.06
7.81
7.56
Input kW.
2.63
3.00
3.38
3.75
4.13
4.50
4.88
Total capacity kW
13.89
13.28
12.80
12.08
11.59
11.23
10.87
Sensitive capacity kW
11.11
10.63
10.24
9.66
9.27
8.98
8.69
Input kW.
3.02
3.45
3.88
4.31
4.74
5.18
5.61
Conditions
Total capacity kW
21ºC D
15ºC W
24ºC D
17ºC W
27ºC D
19ºC W
32ºC D
23ºC W
Heating
OUTDOOR CONDITIONS
Indoor
24ºC D
12ºC D
7ºC D
4ºC D
0ºC D
-5ºC D
-7ºC D
-15ºC D
Conditions
18ºC W
11ºC W
6ºC W
3ºC W
-1ºC W
-6ºC W
-8ºC W
-16ºC W
Capacity kW
19.67
15.73
13.11
11.80
11.14
9.83
9.18
8.52
Input kW.
6.38
5.11
4.26
4.04
3.83
3.62
3.40
2.98
Capacity kW
18.47
14.77
12.31
11.08
10.47
9.23
8.62
8.00
Input kW.
5.99
4.80
4.00
3.80
3.60
3.40
3.20
2.80
Capacity kW
17.10
13.68
11.40
10.26
9.69
8.55
7.98
7.41
Input kW.
5.55
4.44
3.70
3.52
3.33
3.15
2.96
2.59
Capacity kW
15.73
12.59
10.49
9.44
8.91
7.87
7.34
6.82
5.11
4.08
3.40
3.23
3.06
2.89
2.72
2.38
Capacity kW
13.68
10.94
9.12
8.21
7.75
6.84
6.38
5.93
Input kW.
4.44
3.55
2.96
2.81
2.66
2.52
2.37
2.07
15ºC
18ºC
20ºC
22ºC
27ºC
Input kW.
Model: YOHC -48
Cooling
OUTDOOR TEMPERATURE DRY
Indoor
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
50ºC
Total capacity kW
13.52
12.94
12.47
11.76
11.29
10.94
10.58
Sensitive capacity kW
10.82
10.35
9.97
9.41
9.03
8.75
8.47
Input kW.
2.96
3.38
3.81
4.23
4.65
5.08
5.50
Total capacity kW
14.81
14.17
13.65
12.88
12.36
11.98
11.59
Sensitive capacity kW
11.85
11.33
10.92
10.30
9.89
9.58
9.27
Input kW.
3.13
3.57
4.02
4.47
4.91
5.36
5.80
Total capacity kW
16.10
15.40
14.84
14.00
13.44
13.02
12.60
Sensitive capacity kW
12.88
12.32
11.87
11.20
10.75
10.42
10.08
Input kW.
3.29
3.76
4.23
4.70
5.17
5.64
6.11
Total capacity kW
18.52
17.71
17.07
16.10
15.46
14.97
14.49
Sensitive capacity kW
14.81
14.17
13.65
12.88
12.36
11.98
11.59
Input kW.
3.78
4.32
4.86
5.41
5.95
6.49
7.03
Conditions
21ºC D
15ºC W
24ºC D
17ºC W
27ºC D
19ºC W
32ºC D
23ºC W
Heating
OUTDOOR CONDITIONS
Indoor
24ºC D
12ºC D
7ºC D
4ºC D
0ºC D
-5ºC D
-7ºC D
-15ºC D
Conditions
18ºC W
11ºC W
6ºC W
3ºC W
-1ºC W
-6ºC W
-8ºC W
-16ºC W
Capacity kW
26.22
20.98
17.48
15.73
14.86
13.11
12.24
11.36
Input kW.
8.45
6.76
5.64
5.35
5.07
4.79
4.51
3.94
Capacity kW
24.62
19.70
16.42
14.77
13.95
12.31
11.49
10.67
Input kW.
7.94
6.35
5.29
5.03
4.76
4.50
4.23
3.70
Capacity kW
22.80
18.24
15.20
13.68
12.92
11.40
10.64
9.88
Input kW.
7.35
5.88
4.90
4.66
4.41
4.17
3.92
3.43
Capacity kW
20.98
16.78
13.98
12.59
11.89
10.49
9.79
9.09
Input kW.
6.76
5.41
4.51
4.28
4.06
3.83
3.61
3.16
Capacity kW
18.24
14.59
12.16
10.94
10.34
9.12
8.51
7.90
Input kW.
5.88
4.70
3.92
3.72
3.53
3.33
3.14
2.74
15ºC
18ºC
20ºC
22ºC
27ºC
Model: YOHC -60
Cooling
OUTDOOR TEMPERATURE DRY
Indoor
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
50ºC
Total capacity kW
16.42
15.71
15.14
14.28
13.71
13.28
12.85
Sensitive capacity kW
13.14
12.57
12.11
11.42
10.97
10.62
10.28
Input kW.
3.78
4.32
4.86
5.40
5.94
6.48
7.02
Total capacity kW
17.99
17.20
16.58
15.64
15.01
14.55
14.08
Sensitive capacity kW
14.39
13.76
13.26
12.51
12.01
11.64
11.26
Input kW.
3.99
4.56
5.13
5.70
6.27
6.84
7.41
Total capacity kW
19.55
18.70
18.02
17.00
16.32
15.81
15.30
Sensitive capacity kW
15.64
14.96
14.42
13.60
13.06
12.65
12.24
Input kW.
4.20
4.80
5.40
6.00
6.60
7.20
7.80
Total capacity kW
22.48
21.51
20.72
19.55
18.77
18.18
17.60
Sensitive capacity kW
17.99
17.20
16.58
15.64
15.01
14.55
14.08
Input kW.
4.83
5.52
6.21
6.90
7.59
8.28
8.97
Conditions
21ºC D
15ºC W
24ºC D
17ºC W
27ºC D
19ºC W
32ºC D
23ºC W
Indoor
24ºC D
12ºC D
7ºC D
4ºC D
0ºC D
-5ºC D
-7ºC D
-15ºC D
Conditions
18ºC W
11ºC W
6ºC W
3ºC W
-1ºC W
-6ºC W
-8ºC W
-16ºC W
Capacity kW
34.50
27.60
23.00
20.70
19.55
17.25
16.10
14.95
Input kW.
10.35
8.28
6.90
6.56
6.21
5.87
5.52
4.83
Capacity kW
32.40
25.92
21.60
19.44
18.36
16.20
15.12
14.04
Input kW.
9.72
7.78
6.48
6.16
5.83
5.51
5.18
4.54
Capacity kW
30.00
24.00
20.00
18.00
17.00
15.00
14.00
13.00
Input kW.
9.00
7.20
6.00
5.70
5.40
5.10
4.80
4.20
Capacity kW
27.60
22.08
18.40
16.56
15.64
13.80
12.88
11.96
Input kW.
8.28
6.62
5.52
5.24
4.97
4.69
4.42
3.86
Capacity kW
24.00
19.20
16.00
14.40
13.60
12.00
11.20
10.40
Input kW.
7.20
5.76
4.80
4.56
4.32
4.08
3.84
3.36
15ºC
18ºC
20ºC
22ºC
27ºC
8. Air Velocity and Temperature Distributions
Discharge angle 60° (CEILING)
Airflow velocity
Temperature
Discharge angle 60°(FLOOR)
Airflow velocity
Temperature
9. Electric Characteristics
Power supply
Model
Indoor fan motor
Hz
Voltage
Power output
FLA
YOKC-12
50
220~240
25
0.13
YOKC-18
50
220~240
55
0.355
YOKC -24
50
220~240
55
0.355
YOKC-30
50
220~240
80
0.475
YOKC-36
50
380
80
0.475
YOKC-48
50
380
59
0.34
YOKC-60
50
380
59
0.34
Symbols:
FLA: Full Load Amps.
10. Sound Levels
Ceiling
Floor
High airflow
¸ ß
· ç
µ Í· ç
Low airflow
Sound pressure level dB£ 0̈dB=0.0002¦ Ìbar£ ©
Sound pressure level dB£ 0̈dB=0.0002¦ Ìbar£ ©
12000btu/h 18000btu/h
Audibility limits of
continuous white
sound
Octave band center frequency£ Ḧz£ ©
Ceiling
Audibility limits of
continuous white
sound
Octave band center frequency£ Ḧz£ ©
Floor
Sound pressure level dB£ 0̈dB=0.0002¦ Ìbar£ ©
Sound pressure level dB£ 0̈dB=0.0002¦ Ìbar£ ©
24000btu/h 30000btu/h 36000btu/h
A udibility lim its of
continuous w hite
sound
Audibility limits of
continuous white
sound
O ctave band center frequency £ Ḧ z £ ©
Octave band center frequency £ Ḧz £ ©
Ceiling
Floor
Sound pressure level dB£ 0̈dB=0.0002¦ Ìbar£ ©
Sound pressure level dB£ 0̈dB=0.0002¦ Ìbar£ ©
48000btu/h 60000btu/h
Audibility limits of
continuous white
sound
Octave band center frequency£ Ḧz£ ©
Ceiling
Audibility limits of
continuous white
sound
Octave band center frequency£ Ḧz£ ©
Floor
11. Exploded view
11.1 YOKC-12
No.
YOKC-18
YOKC -24
Part Name
Quantity
No.
Part Name
Quantity
1
Air inlet grille
1
20
Installation clamp
2
2
filter
2
21
Right holder,eva
1
3
Electric control assy
1
22
Base pan
1
3.1
Electric part box
1
23
Evaporator
1
3.2
Wire joint
1
23.1
Electric expansive valve
1
3.3
Wire joint “ROHS”
1
23.2
Electric Expansion loop
1
3.4
Pipe Temperature Sensor Ass'y II
1
24
left holder, eva
1
3.5
Pipe Temperature Sensor Ass'y
1
25
left fixed board, eva
1
3.6
Transformer
1
26
left frame holder, eva
1
3.7
Main control PCB
1
27
left clapboard
1
3.8
Fan motor capacitor
1
28
right installation board
1
4
Cover for E-box
1
29
right clapboard
1
5
Panel Ass'y
1
30
middle beam
1
6
Display panel box
1
31
grille lock
1
7
Display PCB assy
1
32
fan motor
1
8
Manual button
1
33
grille strip
2
9
Sealing foam I for air out frame
1
34
grille strip screw
2
10
Sealing foam II for air out frame
2
35
Sroll-shell, down
2
11
Sealing foam III for air out frame
1
36
Sroll-shell, up
2
12
Air-out frame assy
1
37
fan
2
13
Back clapboard
1
38
left fixing clamp for motor
1
14
wiry holder for water collector
1
39
right fixing clamp for motor
1
15
Collect water pan assy
1
40
Strenghten board for motor
1
16
plastic cover
1
41
left installation board
1
17
base pan frame assy
1
42
holder
1
18
Right frame holder, eva
1
43
Remote Controller
1
19
Right fixed board, eva
1
11.2 YOKC-30
No.
YOKC-36
Part Name
Quantity
No.
Part Name
Quantity
1
Air inlet grille
1
21
Right holder,eva
1
2
filter
3
22
Base pan
1
3
E-Parts box ass'y
1
23
Evaporator
1
3.1
Electric part box
1
24
left holder, eva
1
3.2
Wire joint
1
25
left fixed board, eva
1
3.3
Wire joint
1
26
left frame holder, eva
1
3.4
Pipe temp. sensor ass'y
1
27
left clapboard
1
3.5
Room temp. sensor ass'y
1
28
right installation board
1
3.6
Transformer
1
29
right clapboard
1
3.7
Main control PCB
1
30
middle beam
1
3.8
Fan motor capacitor
1
31
grille lock
2
4
Cover for E-box
1
32
fan motor
1
5
Panel ass'y
1
33
grille strip
2
6
Display panel box
1
34
grille strip screw
2
7
Display board ass'y
1
35
Sroll-shell, down
3
8
Manual button
1
36
Sroll-shell, up
3
9
Sealing foam I for air out frame
1
37
fan
3
10
Sealing foam II for air out frame
3
38
left fixing clamp for motor
1
11
Sealing foam III for air out frame
1
39
right fixing clamp for motor
1
12
Air-out frame assy
1
40
Strenghten board for motor
1
13
Back clapboard
1
41
left installation board
1
14
wiry holder for water collector
1
42
Supporting board for bearing
1
15
Collect water pan assy
1
43
bearing underlay
1
16
plastic cover
1
44
Axis
1
17
base pan frame assy
1
45
Fixing board for bearing
1
18
Right frame holder, eva
1
46
Coupling
1
19
Right fixed board, eva
1
47
holder
1
20
Installation clamp
2
48
Remote Controller
1
11.3 YOKC-48
No.
YOKC-60
Part Name
Quantity
No.
Part Name
Quantity
1
Air inlet grille
2
23
left sealing board
1
2
filter
4
24
left clapboard
1
3
left fixing clamp for motor
2
25
E-Parts box ass'y
1
4
right fixing clamp for motor
2
25.1 Wire joint
1
5
Strenghten board for motor
2
25.2 Wire joint
1
6
E-part box underlay
1
25.3 Pipe temp. sensor ass'y
1
7
Sroll-shell, down
4
25.4 Room temp. sensor ass'y
1
8
Sroll-shell, up
4
25.5 Transformer
1
9
fan
2
25.6 Main control PCB
1
10
fan motor
2
25.7 Fan motor capacitor
2
11
fan motor holder
2
25.8 Electric part box
1
12
right holder, filter
2
26
Cover for E-box
1
13
left holder, filter
2
27
Collect water pan ass'y
1
14
middle beam
1
28
cover
1
15
pipe fixed board
1
29
Display board ass'y
1
16
Sealing foam for collect pan
2
30
Display panel box
1
17
Installation clamp
2
31
Sealing foam I for air out frame
2
18
right clapboard
1
32
Air-out frame assy
1
19
right sealing board
1
33
Evaporator
1
20
right installation board
1
34
plastic cover
1
21
Base pan ass'y
1
35
holder
1
22
left installation board
1
36
Remote Controller
1
Part 3
Outdoor Units
Outdoor Units………………………………………………………………..
Outdoor Units
1. Dimensions……………………………………………………………………………………..
2. Service Space…………………………………………………………………………………..
3. Wiring Diagrams……………………………………………………………………………….
4. Field Wiring……………………………………………………………………………………..
4. Electric Characteristics………………………………………………………………………
6. Operation Limits……………………………………………………………………………….
7. Sound Levels…………………………………………………………………………………..
8. Exploded view………………………………………………………………………………….
9. Troubleshooting……………………………………………………………………………….
1. Dimensions
1.1 YOJC-12
750
590
285
290
315
62
530
12. 5
1.2. YOJC-18
110
1.3. YOJC-24
895
860
330
62
590
1.4. YOJC-30 YOJC-36
141
1.5. YOJC-48 YOJC-60
2. Service Space
Capacity≤60000Btu
Obstacle
>30cm
Air inlet
>30cm
>60cm
(Wall or obstacle)
Air inlet
Fix with bolt
Maintain channel
>200cm
>60cm
Air outlet
Deep foundation
Necessary width
600mm
M10 bolt
4pieces per unit
3. Wiring diagrams
3.1 Cooling & Heating
3.1.1. YOJC-12
3.1.2. YOJC-18
3.1.3. YOJC-24
3.1.4. YOJC-30
RES
2
1
L
N
1
2
3
5
4
STARTI NGCAPACI TOR
STARTI NGRELAY
WARNI NG: I F THE I NDOOR UNI T I S T1&T2&DL
SERI ES, PLEASE PUT THE LI NES ON XT3 TO I NDOOR UNI T
XT1' S CORRELATI VE PART!
RES
DI SCHARGE RESI STANCE
3.1.5. YOJC-36
3.1.6. YOJC-48 YOJC-60
CN206
S. V.
W
HI TE
BLUE
RED( A1)
YELLOW
BLUE( S. V)
BLUE
BLUE( N)
RED( A1)
XT5
CN200
CN
100
BLUE( N)
CN201
BLUE( S. V)
BLACK( HI )
XP9
XS8 XP8
RT3
RT1
BACK( HI )
RED( LOW
)
CN203 CN208
T5
H- PRO K1
BLACK( L1)
A1
1
3
KM1
A2
2
4
5
6
21
22
FAN3
RED
YELLOW
BLACK( L3)
BLACK( L2)
W
COMP V
BLACK( L1)
U
HEAT
W
HI TE
CAP3
FAN4
RED
BLUE BLUE( N)
YELLOW
BLUE( N)
RED
COLD MODULE
1
2
3
4
5
Y/ G
BLUE( N)
RED
XT2
XT1
ABCN
RT5
4
TO I NDOOR UNI T
FAN CAP.
S. V
4- W
AY VALUE
KM1
AC CONTACTOR
HEAT
CRANK
H- PRO
RT3
XS8- 9
HI GH PRESSURE SW
I TH
RT4
XT1
T5
RT5
BLACK
BLACK
TO I NDOOR UNI T
Y/ G
OUTDOOR FAN
CAP3 CAP4
XP8- 9
CN100- 208
K1
XT7
CAP4
BLUE
XT6
COMPRESSOR
FAN3 FAN4
PI PE TEMP. SENSOR
CONNECTORS
CONNECTORS
P. C. BOARD SOCKETS
TEMP. PROTECT SW
I TH
ROOMTEMP. SENSER
5- W
AY TERMI NAL
TRANSFORMER
TEMP. SENSER
4. Field Wiring
5. Electric Characteristics
Power supply
Model
Compressor
Outdoor fan motor
Hz
Voltage
MSC
RLA
Power output
FLA
YOJC-12
50
220~240
26
5.3
24
0.27
YOJC -18
50
220~240
36.8
8.75
53
0.61
YOJC -24
50
220~240
61
11.4
53
0.66
YOJC -30
50
220~240
97
17.65
250
1.38
YOJC -36
50
380
61
6.58
250
1.38
YOJC -48
50
380
66
8.22
65
0.7
YOJC -60
50
380
67
9.77
65
0.7
Symbols:
MSC: Max. Starting Current
RLA: Rated Locked Current
FLA: Full Load Amps.
6. Operation Limits
Ensure the operating temperature is in allowable range.
Heating
Cooling
24
Ambient temp. (ºC)
45
STD
35
STD
6
17
With low ambient temp.
cooling module
-7
-7
17
24
30
Indoor temp. (ºC)
17
24
30
Indoor temp. (ºC)
7. Sound levels
1m
Microphone
12000btu/h
18000btu/h
24000btu/h
48000btu/h & 60000btu/h
3000btu/h & 36000btu/h
8. Exploded view
8.1 Cooling & Heating
8.1.1 YOJC-12
No.
Part Name
Quantity
No.
Part Name
Quantity
1
Clamp for front net
6
15
Capacitor clamp
1
2
Front net
1
16
Wire joint,5p
1
3
Front clapboard
1
Wire joint, 2p
1
4
Propeller fan
1
17
Left supporter
1
5
Fan motor
1
18
Separating board
1
6
Holder for fan motor
1
19
Condenser
1
7
Chassis
1
20
Water collector
1
8
Compressor
1
21
Right clapboard
1
9
Installation plate for valves
1
22
Big handle
1
10
Gas pipe valve
1
23
Cover
1
4-way valve
1
24
Small handle
1
11
Liquid pipe valve
1
25
Rear net
1
12
Fan motor capacitor
1
26
Copper nut, TLM-C03
1
13
Installation board for E-parts
1
27
Copper nut, TLM-A01
1
14
Compressor capacitor
1
28
Pipe temp sensor ass'y
1
8.1.2 YOJC-18
No.
Part Name
Quantity
No.
Part Name
Quantity
1
Clamp for front net
8
19
Wire joint
1
2
Front net
1
20
Separating board
1
3
Front clapboard
1
21
Installation board for E-parts
1
4
Propeller fan
1
22
Washer for wire joint
1
5
Fan motor
1
23
Clamp for wiring
1
6
Holder for fan motor
1
24
Compressor capacitor
1
7
Foam over holder for motor
1
25
Capacitor clamp
1
8
Cover
1
26
Chassis
1
9
Little handle
1
27
Front right clapboard
1
10
Condenser
1
28
Compressor
1
11
Support board for motor holder
1
29
Liquid valve assy
1
12
Left clapboard
1
30
Liquid pipe valve
1
13
Rear net
1
31
4-Ways valve assy
1
14
Rear right clapboard
1
Gas pipe valve
1
15
Big handle
1
Four-way Valve
1
16
Installation plate for valves
1
33
Copper nut, TLM-A01
1
17
Water collector
1
34
Copper nut, TLM-C03
1
18
Fan motor capacitor
1
32
8.1.3 YOJC-24
No.
Part Name
Quantity
No.
Part Name
Quantity
1
Front net
1
20
AC contactor
1
2
Cabinet,Front
1
21
Capacitor,Fan Motor
1
3
Fan,Propeller
1
22
Wire
1
4
Fan Motor
1
5
Mount,Fan Motor
1
6
Topcap Ass'y
1
24
Compressor
1
7
Condenser Ass'y
1
25
Fixture,Segregator
1
8
Inlet Pipe for Condenser
1
4-way Valve
1
9
Outlet Pipe for Condenser
1
4-way Valve Solenoid
1
10
Rear Net
1
27
Liquid pipe valve
1
11
Support board,Back side
1
28
Capillary pipe
1
12
Handle
2
29
Gas pipe valve
1
13
Separating board
1
30
refrigerant Container
1
14
Base Pan Ass'y
1
31
Pipe temp. sensor assy
1
15
Cabinet,Front-Right
1
32
Support board, Left Side
1
16
Capacitor Clamp
1
33
Big handle
1
17
Capacitor, Compressor
1
34
Filter
1
Wiring Installation Panel
1
35
Small Handle
1
Washer for wire joint
1
36
Copper nut, TLM-B02
1
Terminal install board
1
37
Copper nut, TLM-D04
1
Terminal Block,2p
1
18
19
23
26
Clamp
Terminal
Block,5p
1
Terminal
Block,2p
1
8.1.4 YOJC-30
No.
Part Name
Quantity
No.
Part Name
Quantity
1
Clamp for front net
10
20
Fan motor capacitor
1
2
Front net
1
21
Installation board for E-parts
1
3
Front clapboard
1
22
AC contactor
1
4
Propeller fan
1
23
Main control box
1
5
Fan motor
1
24
Wire joint for multiplexer
2
6
Holder for fan motor
1
25
Wire joint for multiplexer
1
7
Chassis
1
26
Washer for wire joint
1
8
Separating board
1
27
Wire clamp
1
9
Cover
1
28
Wire joint for power
1
Condenser I
1
29
Liquid valve assy
1
Condenser II
1
30
Liquid valve
1
11
Support board for motor holder
1
31
4-way valve assy
1
12
Left supporting bar
1
32
4-way Valve
1
13
Rear net
1
33
Gas valve
1
14
Rear right clapboard
1
34
Compressor
1
15
Big handle
1
35
Discharge temp sensor
1
16
Installation plate for valves
1
36
Front right clapboard
1
17
Pipe temp sensor
1
37
Copper nut, TLM-C03
1
18
Refrigerant container
1
38
Copper nut, TLM-E05
1
19
Container clamp
1
10
8.1.5 YOJC-36
No.
Part Name
Quantity
No.
Part Name
Quantity
1
Clamp for front net
10
20
Fan motor capacitor
1
2
Front net
2
21
Installation board for E-parts
1
3
Front clapboard
1
22
AC contactor
1
4
Propeller fan
1
23
Main control board,Outdoor unit
1
5
Fan motor
1
24
Wire joint for multiplexer
2
6
Holder for fan motor
1
25
Wire joint for multiplexer
1
7
Chassis
1
26
Washer for wire joint
1
8
Separating board
1
27
Wire clamp
1
9
Cover
1
28
Wire joint for power
1
Condenser I
1
29
Liquid valve assy
1
Condenser II
1
30
Liquid valve
1
11
Support board for motor holder
1
31
4-way valve assy
1
12
Left supporting bar
1
32
4-way valve
1
13
Rear net
1
33
Gas valve
1
14
Rear right clapboard
1
34
Compressor
1
15
Big handle
1
35
Discharge temp sensor
1
16
Installation plate for valves
1
36
Front right clapboard
1
17
Pipe temp sensor
1
37
Copper nut, TLM-C03
1
18
Refrigerant container
1
38
Copper nut, TLM-E05
1
19
Container clamp
1
10
8.1.6 YOJC-48
No.
Part Name
Quantity
No.
Part Name
Quantity
1
Front net
2
17
Capacitor,Fan Motor
2
2
Cabinet,Front
1
18
Terminal
3
3
Fan,Propeller
2
19
AC contactor
1
4
Fan Motor
2
20
Low Pressure Valve
1
5
Room temp. sensor,outdoor
1
21
PCB board,outdoor unit
1
6
Mount,Fan Motor
1
22
Terminal
1
7
Topcap
1
23
Wire joint for power
1
Condensator I
1
24
Compressor
1
Condensator II
1
25
Refrigerator Container
1
9
Left Side Cabinet
1
26
Fixture,Segregator
1
10
Supporter, Rear Cabinet
1
Four-way Valve
1
10
Supporter, Rear Cabinet
1
Four-way Valve Solenoid
1
11
Cabinet,Back side
1
28
Low Pressure Valve
1
12
Handle
2
29
Capillary
1
13
Plate,Sound-proof
1
30
Electric heat belt for comp
1
14
Base
1
31
Discharge temp controller
1
15
Cabinet,Front Side
1
32
Pipe temp. sensor
1
16
E-control box, assy
1
8
Ass'y
Pan
Ass'y
27
Block,2p
Block,3p
Tube Ass'y
8.1.7 YOJC-60
No.
Part Name
Quantity
No.
Part Name
Quantity
1
Guard fan
2
17
Capacitor,Fan Motor
2
2
Cabinet,Front
1
18
Terminal
3
3
Fan,Propeller
2
19
AC contactor
1
4
Fan Motor
2
20
Low Pressure Valve .
1
5
Room temp. sensor,outdoor
1
21
PCB board,outdoor unit
1
6
Mount,Fan Motor
1
22
Terminal
1
7
Topcap
1
23
Wire joint for power
1
Condensator I
1
24
Compressor
1
Condensator II
1
25
Refrigerator Container
1
9
Left Side Cabinet
1
26
Fixture,Segregator
1
10
Supporter, Rear Cabinet
1
4-way Valve
1
10
Supporter, Rear Cabinet
1
4-way Valve Solenoid
1
11
Cabinet,Back side
1
28
Low Pressure Valve
1
12
Handle
2
29
Capillary
1
13
Plate,Sound-proof
1
30
Electric heat belt for comp
1
14
Base
1
31
Discharge temp controller
1
15
Cabinet,Front Side
1
32
Pipe temp. sensor
1
16
E-control box, assmy
1
8
Ass'y
Pan
Ass'y
27
Block,2p
Block,4p
Tube Ass'y
9. Troubleshooting
9.1 Indoor unit’s LED indication of trouble
NO.
Protection or Malfunction
Operation
Timer lamp
lamp
1
Indoor temp. sensor abnormal
2
Indoor heat exchanger sensor abnormal
3
Outdoor heat exchanger sensor abnormal
4
Outdoor abnormal
5
EEPROM abnormal
×——Extinguish ;
Defrosting
lamp
×
×
×
Auto
recover
×
Yes
×
Yes
×
Yes
Yes
×
No
——Flash at 5Hz
9.2 LEDs’ for the indication of outdoor trouble
YOJC-36, YOJC -48, YOJC -60
Type
Contents
LED1
LED2
LED3
Flash
Off
Off
Off
Off
Flash
Protection
Phase sequence
Protection
Overload of current
Protection
Lack of phase
Flash
Off
Off
Protection
Protection of pressure
Flash
Flash
Off
Protection
Open-circuit and short-circuit trouble of T3
Off
Flash
Flash
Protection
Open-circuit and short-circuit trouble of T4
Off
Flash
Off
Protection
High temperature protection of condenser
Flash
Flash
Flash
9.2.1 Phase sequence error:
Phase sequence error
Change the order of two of the wires to power supply.
Switch on the unit again.
If the problem can not be solved, the outdoor PCB is defective
9.2.2 Overload of current
Overload of current
Check the current, normally
The max. current for YOHC-36 is 9.4 A
The max. current for YOHC-48 is 10.9A
The max. current for YOHC-60 is 13.2A
Is the current in rated range?
No
Yes
The outdoor PCB is defective
Possible reason
1. Outdoor fan is defective
2. The compressor is defective
3. Refrigerant is over charged
4. Air enter the refrigerant system
5. Heat exchanger is too dirty
9.2.3 Lack of phase
Lack of phase
Check the power supply, is it 3 phase,
Yes
Check the connection between power supply and
terminal,
Yes
Outdoor PCB is defective
9.2.4 Protection of pressure or temp.
Protection of pressure or temp.
Yes
Is it k1 or K2 open ?
Is temp. protective switch K1
Yes
Possible reason
1. The wires is loose to K1
2. Air or other gas in the refrigerant.
3. Heat exchanger is dirty
4. Outdoor fan or fan blade is
defective
5. Outdoor unit is bad ventilation
6. Refrigerant is leakage
Is pressure protective switch K2
Yes
Possible reason
1. The wires is loose to K2
2. Air or other gas in the refrigerant.
3. Heat exchanger is dirty
4. Outdoor fan or fan blade is
defective
5. Outdoor unit is bad ventilation
6. Refrigerant is two much
9.2.5 Open-circuit and short-circuit trouble of T3
Is connection to connector of temp. sensor good?
No
Yes
Repair connector
Check the resistance of the temp. sensor according to Annex 1
Is it the resistance is normal?
No
Yes
Indoor PCB is defective.
Replace the sensor
9.2.6 Open-circuit and short-circuit trouble of T4
Is connection to connector of temp. sensor good?
No
Yes
Check the resistance of the temp. sensor according to Annex 1
Is it the resistance is normal?
Yes
Indoor PCB is defective.
No
Replace the sensor
Repair connector
9.2.7 High temperature protection of condenser
High temperature protection of condenser
Check the resistance of the temp. sensor
according to Annex 1, is it normal?
Yes
Possible reason
1. Air or other gas in the refrigerant.
2. Heat exchanger is dirty
3. Outdoor fan or fan blade is
defective
4. Outdoor unit is bad ventilation
5. Refrigerant is leakage
No
Replace the sensor
9.3 Troubles and Solutions
If any the following abnormal conditions occur, turn off the power supply immediately.
Please contact our dealer.
TROUBLES
Indicator lamps flash rapidly, after your disconnecting and connecting the unit, the
situation is the same.
Fuse or circuit breaker work frequently.
Foreign matter or water has fallen into the unit.
Remote controller is disabled or the switch is out of hand.
Any other unusual conditioner is observed.
If any of the following conditions occur, check your unit and resolve corresponding problems referring
to given remediation. If the trouble can't be settled contact our dealer.
Trouble
Unit does not
start
Air flowing
normally with
low cooling
(heating) effect
Cause
Solutions
Power failure.
Wait for the comeback of power
Power switch is open.
Switch on the power
Fuse of power switch may have blown.
Replace the fuse
Batteries of remote controller are exhausted.
Replace the batteries
The time is not start-up time you have set.
Wait or cancel the time set.
Temperature is not set correctly.
Set the temperature properly.
Door or window is open.
Close door and window.
Air filter is blocked with dust or dirtiness.
Clean the air filter.
Inlet/outlet
blocked.
of
indoor/outdoor
units
are
Clear all blockages.
Inlet/outlet
blocked.
of
indoor/outdoor
units
are
Clear the blockage, then restart
your operation.
Be in 3 minutes protection of compressor
Wait
NOTE: Do not replace electric wire or repair the air conditioner by yourself to avoid possible danger.
9.4 Troubles and solutions concerning the remote controller
Please make the following check before asking for repair or maintenance.
Trouble
CAN NOT CHANGE
THE FAN SPEED
SETTING
Cause
Solutions
Check if the mode display on the
LCD is AUTO
The lndoor Unit will select fan speed
automatically when AUTO mode is
selected.
Check if the mode display on the
LCD is DRY
The lndoor Unit will select fan speed
automatically when the unit is on
DRY mode.
The transmission symbol does not flash
Symptom
Checking items
Cause
Press ON/OFF button, the
remote controlling signals can
not be transmitted
Check if the remote controller
has run out of power
When the battery was out,
transmission signals can not be
sent
Temperature display disappear
Symptom
Checking items
Temperature Display does
not light.
Check if the mode display on
the LCD is FAN ONLY
Cause
You can not set the temperature
when the unit is on FAN ONLY
mode.
The Display Goes Off
Symptom
Checking items
Cause
The indication on the
display disappears after a
lapse of time.
Check whether the timer
operation has come to an end
when the OFF TIMER is
indicated on the display.
The air conditioner operation stops
since the set time elapsed.
The ON TIMER indicators
go off after a lapse of certain
time.
Check whether the timer
operation is started when the
ON TIMER is indicated on the
display.
When the time set to start the air
conditioner is reached, the air
conditioner will automatically start
and the appropriate indicator will go
off.
The Signal Receiving Tone does Not Sound
Symptom
Checking items
Cause
No
receiving
tone
sounds from the indoor
unit even when the
ON/OFF
button
is
pushed.
Check
whether
the
signal
transmitter of the remote controller
is properly directed to the receiver
of the indoor unit when the
ON/OFF button is pushed.
Direct the signal transmitter of the
remote controller to the receiver of
the indoor unit, and then repeatly
push the ON/OFF button twice.
Buttons on the remote
controller don't work.
Press Reset button.
Part 4
Installation
Installation……………………………………………………………………
1. Refrigerant pipe installation
1.1. Measure the necessary length of the connecting pipe, and make it by the following way.
a. Connect the indoor unit at first, then the outdoor unit.
Bend the tubing in proper way. Do not harm them.
CAUTIONS:
Daub the surfaces of the flare pipe and the joint nuts with frozen oil, and wrench it for 3~4 rounds
With hands before fasten the flare nuts.
Be sure to use two wrenches simultaneously when you connect or disconnect the pipes.
Tubing size
Torque
6.35
1420~1720N.cm(144~176kgf.cm)
9.52
3270~3990N.cm(333~407kgf.cm)
12.7
4950~6030N.cm(504~616kgf.cm)
16
6180~7540N.cm(630~770kgf.cm)
19
9720~11860N.cm(990~12106kgf.cm)
b. The stop value of the outdoor unit should be closed absolutely (as original state). Every time you connect
it, first loosen the nuts at the part of stop value, then connect the flare pipe immediately (in 5 minutes). If the
nuts have been loosened for a long time, dusts and other impurities may enter the pipe system and may cause
malfunction later. So please expel the air out of the pipe with refrigerant before connection.
c. Expel the air after connecting the refrigerant pipe with the indoor unit and the outdoor unit. Then fasten the
nuts at the repair-points.
1.2. Locate The Pipe
a. Drill a hole in the wall (suitable just for the size of the wall conduit), then set on the fittings such as the wall
conduit and its cover.
b. Bind the connecting pipe and the cables together tightly with binding tapes. Do not let air in, which will
cause water leakage by condensation.
c. Pass the bound connecting pipe through the wall conduit from outside. Be careful of the pipe allocation to
do no damage to the tubing.
1.3. Connect the pipes.
1.4. Then, open the stem of stop values of the outdoor unit to make the refrigerant pipe connecting the indoor
unit with the outdoor unit in fluent flow.
1.5. Be sure of no leakage by checking it with leak detector or soap water.
1.6. Cover the joint of the connecting pipe to the indoor unit with the soundproof / insulating sheath (fittings),
and bind it well with the tapes to prevent leakage.
2. Vacuum dry and leakage checking
2.1. Vacuum Dry: use vacuum pump to change the moisture (liquid) into steam (gas) in the pipe and discharge
it out of the pipe to make the pipe dry. Under one atmospheric pressure, the boiling point of water(steam
temperature) is 100 . Use vacuum pump to make the pressure in the pipe near vacuum state, the boiling point
of water falls relatively. When it falls under outdoor temperature, the moisture in the pipe will be vaporized.
2.2. Vacuum dry procedure
There are two methods of vacuum dry due to different construction environment: common vacuum dry, special
vacuum dry.
. Common vacuum dry procedure
Vacuum dry (for the first time)---connect the all-purpose detector to the inlet of liquid pipe and gas pipe,
and run the vacuum pump more than two hours (the vacuum pump should be below -755mmHg)
If the pump can’t achieve below -755mmHg after pumping 2 hours, moisture or leakage point will still exist
in the pipe. At this time, it should be pumped 1 hour more.
If the pump can’t achieve -755mmHg after pumping 3 hours, please check if there are some leakage
points.
Vacuum placement test: place 1 hour when it achieves -755mmHg, pass if the vacuum watch shows no
rising. If it rises, it shows there’s moisture or leakage point.
Vacuuming from liquid pipe and gas pipe at the same time.
Sketch map of common vacuum dry procedure.
Special vacuum dry procedure
This vacuum dry method is used in the following conditions:
There’s moisture when flushing the refrigerant pipe.
Rainwater may enter into the pipe.
Vacuum dry for the first time ······ 2h pumping
. Vacuum destroy for the second time ······ Fill nitrogen to 0.5Kgf/cm2
Because nitrogen is for drying gas, it has vacuum drying effect during vacuum destroy. But if the moisture is
too much, this method can’t dry thoroughly. So, please pay more attention to prevent water entering and
forming condensation water.
. Vacuum dry for the second time······1h pumping
Determinant: Pass if achieving below -755mmHg. If -755mmHg can’t be achieved in 2h, repeat procedure
and .
. Vacuum placing test ······ 1h
. Sketch map of special vacuum dry procedure
3. Additional charge
3.1. When the length of the one-way pipe is less than 5m, additional refrigerant charge after vacuuming is
unnecessary.
3.2. When the length of one-way pipe is over 5m, the additional charge quantity is as follows (unit in gram):
Calculation method
Refrigerant
R410A
Liquid diameter mm
Unit amount (g/m)
Formula
Φ6.35
30
(L-5)×30
Φ9.53
65
(L-5)×65
Φ12.7
90
(L-5)×90
Remark 1 The additional refrigerant charge is simply related with the liquid pipe diameter.
2 In the up formula, “L” means total length of liquid pipe(unit: m).
4. Water drainage
4.1. Gradient and Supporting
4.1.1 Keep the drainpipe sloping downwards at a gradient of at least 1/100. Keep the drainpipe as short as
possible and eliminate the air bubble.
4.1.2 The horizontal drainpipe should be short. When the pipe is too long, a prop stand must be installed to
keep the gradient of 1/100 and prevent bending. Refer to the following table for the specification of the prop
stand.
Hard PVC pipe
Diameter
Distance between the prop stands
25~40mm
1.5~2m
4.1.3. Precautions
The diameter of drainpipe should meet the drainage requirement at least.
The drainpipe should be heat-insulated to prevent atomization.
Drainpipe should be installed before installing indoor unit. After powering on, there is some water in
water-receiver plate. Please check if the drain pump can operate correctly.
All connection should be firm.
Wipe color on PVC pipe to note connection.
Climbing, horizontal and bending conditions are prohibited.
The dimension of drainpipe can’t less than the connecting dimension of indoor drainpipe.
Heat-insulation should be done well to prevent condensation.
Indoor units with different drainage type can’t share one convergent drainpipe.
4.2 Drainpipe Trap
4.2.1. If the pressure at the connection of the drainpipe is negative, it needs to design drainpipe trap.
4.2.2. Every indoor unit needs one drainpipe trap.
4.2.3. A plug should be designed to do cleaning.
50cm 50cm
Pl ug
4.3 Upwards drainage(drain pump)
4.3.1. To ensure the gradient 1/100, the drainpipe can be lifted to 340mm. After upwards, place downwards, or
it will cause malfunction to drain pump.
4.4 Convergent drainage
4.4.1. The number of indoor units should be as small as possible to prevent the traverse main pipe overlong.
4.4.2. Indoor unit with drain pump and indoor unit without drain pump should be in different drainage system.
4.4.3. Selecting the diameter
Number of connecting indoor units→Calculate drainage volume→Select the diameter
Calculate allowed volume =Total cooling capacity of indoor units(HP)×2 (l/ hr)
Hard
Hard
Hard
Hard
Hard
Allowed volume(lean 1/100) (l/ hr)
≤14
14 ≤88
88 ≤334
175 ≤334
334
I.D. (mm)
Ø 25
Ø 30
Ø 40
Ø 50
Ø 80
Thick
3.0
3.5
4.0
4.5
6.0
4.5 Drainage test
Drainage without drain pump
After finishing drainpipe installation, pour some water into the water receiver plate to check if the water flows
smoothly.
5. Insulation work
5.1 Insulation material and thickness
5.1.1. Insulation material
Insulation material should adopt the material which is able to endure the pipe’s temperature: no less than 70
in the high-pressure side, no less than 120 in the low-pressure side(For the cooling type machine, no
requirements at the low-pressure side.)
Example: Heat pump type----Heat-resistant Polyethylene foam (withstand above 120 )
Cooling only type---- Polyethylene foam (withstand above 100 )
5.1.2. Thickness choice for insulation material
Insulation material thickness is as follows:
Pipe diameter (mm)
Adiabatic material thickness
Φ6.4—Φ25.4
10mm
Φ28.6—Φ38.1
15mm
Inner diameterΦ20—Φ32
6mm
Refrigerant pipe
Drainage pipe
5.2 Refrigerant pipe insulation
5.2.1. Work Procedure
Before laying the pipes, the non-jointing parts and non-connection parts should be heat insulated.
When the gas proof test is eligible, the jointing area, expanding area and the flange area should be heat
insulated
5.2.2. Insulation for non-jointing parts and non-connection parts
wrong
Gas pipe and liquid pipe
should
right
Insulate the gas pipe
(cooling only)
Insulate the gas pipe and
liquid pipe
For construction convenience, before laying pipes, use insulation material to insulate the pipes to be deal with,
at the same time, at two ends of the pipe, remain some length not to be insulated, in order to be welded and
check the leakage after laying the pipes.
5.2.3. Insulate for the jointing area, expanding area and the flange area
Insulate for the jointing area, expanding area and the flange area should be done after checking leakage of
the pipes
Make sure there’s no clearance in the joining part of the accessorial insulation material and local preparative
insulation material.
5.3 Drainage pipe insulation
The connection part should be insulated, or else water will be condensing at the non-insulation part.
5.4 Note
5.4.1 The jointing area, expanding area and the flange area should be heat insulated after passing the
pressure test
5.4.2 The gas and liquid pipe should be heat insulated individually, the connecting part should be heat
insulated individually.
5.4.3 Use the attached heat-insulation material to insulate the pipe connections (pipes’ tie-in ,expand nut ) of
the indoor unit.
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