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110
Compact Installation
Electrical Diagram
B1
B2
B3
B4
B5
B6
B7
GND
GND (o)
Rx +(+)
Rx -(-)
GND (o)
Rx +(+)
Rx -(-)
GND (o)
Rx +(+)
Rx -(-)
KR1 KR2
1 2 3 4 5
E**
D*
F
G***
A
B
H2
H1
V1
V2
V3
C
Only live
cables are
shown here.
Neutral &
earth
wires are
common.
Description
Description
A Joule Electrical Enclosure
H1 Immersion
B PrePlumb Unit
H2 Back up Heater
C Heat Pump
V1 DHW Valve
D Outdoor Sensor
V2 Heating Zone valve 1
E
2nd Zone Sensor
V3 Heating zone valve 2
F
Touchscreen
G
RJ45- BOSS system connection