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7. INSTRUCTIONS FOR INSTALLATION [Instructions on Electrical Wiring]
7.6.8 Differential voltage wiring diagram (380/400/415/440 V)
3φ
AC380/400/415 V 50Hz
AC400/440 V 60Hz
R
S
T
ELB
TB1
R
S
T
TB3
T1
S1
R1
52
42
Y
Z
X
49M
1
U
V W
U1 V1 W1
IM
1
22/37kW
U2 V2 W2
Symbol
Part name
IM
Compressor motor
1
IM
Cooling fan motor
2
52
Main electromagnetic contactor
42
Electromagnetic contactor for
6
Electromagnetic contactor for
88F
Electromagnetic contactor for fan
49M
Thermal relay
PWB1
Control PC board
PWB2
Display PC board
TH1
Thermistor (discharge temp. 1)
TH2
Thermistor (discharge temp. 2)
20P
Blow-off solenoid valve
20US
Starting solenoid valve
PS(1)
Pressure sensor
63E
Pressure switch
63SV
Pressure differential sensor of air intake filter
FM
Cooling fan motor (for starter)
SW1
Dip switch for setting
SW2
Dip switch for dryer / capacity control
42
(Earth leakage breaker)
22kW EX100B 100A or EX100BK 75A
37kW EXK225 150A or EX225K 125A
Type of ELB shown is the case of 380-440 V.
In practice, determine the type by consideration
of wire thickness and distance, and transformer
capacity. (Out of scope of supply)
EF1
TRD （3.2kVA）
EF2
380/400
200V
415/440 V
R1
S1
T1
R
S
T
R
S
T
1
1
1
D
D
D
R S T
46D
88F
49M
2
U
V W
U
V W
6
IM
IM
2
22kW：0.75kW
37kW：1.5kW
Symbol
Part name
DSA
Arrestor
TR,TR1
Transformer
Tr
Transistor output
Y
Supplementary relay
TB
Terminal board
EF
Fuse
SK
Surge killer
CE
Contactor
CN
Connector
46,46D
Reversal phase relay
IM
3
Motor for air dryer refrigerator
IM
4,5
Motor for air dryer condenser
52C,88
Electromagnetic contactor for dryer
PS1
High pressure switch
PS2
Fan control switch for dryer
OHR
Overheat protection thermostat for dryer
49FC
Thermal protector for dryer
TRD
Stepdown transformer for air dryer
Digital Monitor
200mA
RESET
button
SELECT
button
380/400
EF3
（ 5A×2）
415/440 V
（ 5A×2） R2
200V RS
RP
EF4
SP
SS
TR
(
22kW 210VA
)
37kW 250VA
46
R
T4
R3
52C
88
R4
T5
49M
3
1
2
CN22
IM
IM
3
4
1.1kW
25W
（only 37 kW equipped）
S3
8
7
9
49M
1
12
49M
2
88F
52
13
Ｓ
Ｓ
88F
52
Ｋ
Ｋ
CE
CE
CE
C
This shows setting at compressor side.
D
This shows setting at dryer side.
RUNNING MODE Light
ECOMODE
button
R
POWER
START
light
DRYER
button
PWB2
button
S2
46
42
ON
T3
OFF
12345 678
SW1
C
R
CN11
1
W
PS
2
PWB1（HC35）
（1）
3
B
4
TH2
CN10
1
2
TH1
CN9
1
2
63SV
CN8
1
2
D
19.2V 9.2V
CN4
4 3
2
1
CN14
5
O O Y Y
25W
10
11
6
42
14
15
16
CN20
3
1
CE
CE CE
Ｓ
Ｓ
42
6
Ｋ
Ｋ
63E
STOP
button
Y6
Y42
7 5 3 1
11
10 9
CE
CN23
1
2
CE
20US
（only 37 kW equipped）
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