9 Technical data
Installation and operation manual
37
SERHQ020~0 SEHVX20~64BAW
Split packaged air-cooled water chiller
4P508019-1C – 2018.04
9.5
Wiring diagram: Outdoor unit
Refer to the wiring diagram sticker on the outdoor unit. The
abbreviations used are listed below:
INFORMATION
The wiring diagram on the outdoor unit is only for the
outdoor unit. For the indoor unit or optional electrical
components, refer to the wiring diagram of the indoor unit.
L1,L2,L3
Live
N
Neutral
Field wiring
Terminal strip
Connector
Terminal
Protective earth (screw)
BLK
Black
BLU
Blue
BRN
Brown
GRN
Green
GRY
Grey
ORG
Orange
PNK
Pink
RED
Red
WHT
White
YLW
Yellow
A1P~A7P
Printed circuit board
BS1~BS5
Pushbutton switch (mode, set, return, test,
reset)
C1, C63, C66
Capacitor
DS1, DS2
DIP switch
E1HC~E3HC
Crankcase heater
F1U
Fuse (650 V, 8 A, B) (A4P) (A8P)
F1U, F2U
Fuse (250 V, 3.15 A, T) (A1P)
F5U
Field fuse
F400U
Fuse (250 V, 6.3 A, T) (A2P)
H1P~H8P
Pilot lamp (service monitor - orange)
H2P blinks: under preparation or in test
operation
H2P lights up: malfunction detection
HAP
Pilot lamp (service monitor - green)
K1
Magnetic relay
K2
Magnetic contactor (M1C)
K2M, K3M
Magnetic contactor (M2C, M3C)
K1R, K2R
Magnetic relay (K2M, K3M)
K3R~K5R
Magnetic relay (Y1S~Y3S)
K6R~K9R
Magnetic relay (E1HC~E3HC)
L1R
Reactor
M1C ~M3C
Motor (compressor)
M1F, M2F
Motor (fan)
PS
Switching power supply (A1P, A3P)
Q1DI
Earth leakage circuit breaker (field supply)
Q1RP
Phase reversal detection circuit
R1T
Thermistor (fin) (A2P)
R1T
Thermistor (air) (A1P)
R2T
Thermistor (suction)
R4T
Thermistor (coil-deicer)
R5T
Thermistor (coil-outlet)
R6T
Thermistor (liquid-pipe receiver)
R7T
Thermistor (accumulator)
R10
Resistor (current sensor) (A4P) (A8P)
R31T~R33T
Thermistor (discharge) (M1C ~M3C)
R50, R59
Resistor
R95
Resistor (current limiting)
S1NPH
Pressure sensor (high)
S1NPL
Pressure sensor (low)
S1PH, S3PH
Pressure switch (high)
S1S
Selector switch (fan, cool/heat) (optional
cool/heat selector)
S2S
Selector switch (cool/heat) (optional cool/
heat selector)
SD1
Safety devices input
T1A
Current sensor (A6P, A7P)
V1R
Power module (A4P, A8P)
V1R, V2R
Power module (A3P)
X1A, X4A
Connector (M1F, M2F)
X1M
Terminal strip (power supply)
X1M
Terminal strip (control) (A1P)
X1M
Terminal strip (A5P)
Y1E, Y2E
Expansion valve (electronic type) (main,
subcool)
Y1S
Solenoid valve (hotgas bypass)
Y2S
Solenoid valve (oil return)
Y3S
Solenoid valve (4-way valve)
Y4S
Solenoid valve (injection)
Z1C~Z7C
Noise filter (ferrite core)
Z1F
Noise filter (with surge absorber)
9.6
Wiring diagram: Indoor unit
Refer to the wiring diagram sticker on the indoor unit. The
abbreviations used are listed below:
L1,L2,L3
Live
N
Neutral
Field wiring
Terminal strip
Connector
Terminal
Protective earth (screw)
BLK
Black
BLU
Blue
BRN
Brown
GRN
Green
GRY
Grey
ORG
Orange
PNK
Pink
RED
Red
WHT
White
YLW
Yellow
A1P
Main PCB circuit 1
Содержание SEHVX20BAW
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