SERO AWB-SS-12 DC, Installation And Maintenance Manual

Page: 16 / 63

Electrical connection 15
RETURN WTT
FEED EHI
WF
ROOM LP
CFDT
N
3WV
4WV
N
GND WCP
N N
GND GND
WCP2
N
From
PCB2
/
T
1
3-Way
Valve's
Relay
(
port
3)
From
PCB2
/
CN6
From
Water
return
Temperature
Sensor
From
Water
feed
Temperature
Sensor
From
Defrost
Temperature
Sensor
From
Outside
Air
Temperature
Sensor
From
Room
Temperature
Sensor
From
Water
Tank
Temperature
Sensor
From
Compressor
Exhaust
Temperature
Sensor
From
Low
Pressure
Pressostat
From From
From
Water
Flow
Switch
From
Three-way
valve
forwaterflow
From
Four_way
Valve
From
Water
cycle
pump
From
Outdoor
Unit
FAN-LOW-L
From
Water
cycle
pump2
From
Common
Terminal
(CT)
1.5mm2 terminal connection
EH4
From
Oudoor
Unit
Eletrical
heater
4-L
NOTE!
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VKRXOGEHFRQQHFWHGWRWKHPP
2
WHUPLQDO
WKURXJKWKHKROHRQWKHVRXQGLQVXODWLRQERDUG
DQGFRQQHFWWRRXWVLGHZLWKWKHFRSSHUSLSHV
3-Way
Valve's
Relay
(
port
1)
HDO
PO
From
Electrical
auxiliary
heater
Temperature
Sensor
From
Outdoor
Unit
FAN-N
/Outdoor
EH4-N
From
Outdoor
Unit
FAN
GND
From
PCB2
/
CN2
N-IN
connect
together
From
External
relay
signal
control
port
From
Compressor
Frequency
Decrease
For
Protection
2.5mm2 terminal connection
EH1
EH2
N
EH3
N
GND
From From Compressor
From Electrical heater 3
From Electrical heater 2
From Electrical heater 1
From Fuse 1
From Fuse 2
From Fuse 3
From K1 N
GND
From From Electrical heater
From K1 N
PG PQ
OFAN
-H
OFAN
-L
From
Outdoor
Unit
FAN-HIGH-L
From
PCB2
/
T
2
From
PCB2
/
T
3
From
PCB2
/
CN15
From
PCB2
/
CN15
From
PCB2
/
CN14
From
PCB2
/
T
4
From
MAIN
PCB
/
CN22
From
MAIN
PCB
/
CN24
From
MAIN
PCB
/
CN23
From
MAIN
PCB
/
CN15
From
MAIN
PCB
/
CN15
From
MAIN
PCB
/
CN15
From
From
MAIN
PCB
/
CN21-L
From
MAIN
PCB
/
CN21-N
From
MAIN
PCB
/
CN14
OFAN-H
From
MAIN
PCB
/
CN13
OFAN-L
From
MAIN
PCB
/
CN11-N
From
Common
Terminal
(CT)
From
MAIN
PCB
/
CN11N(AC)-OUT
From
PCB2
/
CN2
N-IN
From
Water
Temperature
Thermostat
1
(WTP1
40C)
From
Water
Temperature
Thermostat
2
(WTP2
70C)
From
Switch
Board
E-HEATER
port
From
AC
Contactor
-
A
2
CSP
From
Compressor
stop
protection
L