Electrical connection
11
1.5mm2 terminal connection
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
RETURN
WTT
FEED
EHI
WF
ROOM
LP
CFDT
N
3WV
GND
WCP
N
GND
WCP2
N
From
PCB2
/
T
1
3-Way
Valve's
Relay
(
port
3)
From
Water
return
Temperature
Sensor
From
Water
feed
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
Ground
Water
cycle
pump
From
Water
cycle
pump2
3-Way
Valve's
Relay
(
port
1)
HDO
PO
From
Electrical
auxiliary
heater
Temperature
Sensor
From
PCB2
/
CN2
N-IN
connect
together
From
External
relay
signal
control
port
From
Compressor
Frequency
Decrease
For
Protection
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
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
PQ
N
GND
GWCP2
N
GND
GWCP
From
Ground
Water
cycle
pump
2
From
Water
cycle
pump
From
PCB2
/
CN7
From
PCB2
/
CN7
From
Common
Terminal
(CT)
From
PCB2
/
CN6
From
From
Common
Terminal
(CT)
GWIT GWOT
From
Ground
water
outlet
Temperature
Sensor
From
Ground
water
inlet
Temperature
Sensor
From
PCB2
/
T
5
From
PCB2
/
T
6
