Installation-, User- and Service Manual
76
3.6.3
3.6.4
Terminal
Type
Colour
Description
1
Earth
yellow/green
Earth control.
2
Live
brown
Live input control via isolator.
3
Neutral
blue
Neutral control.
Note
Fit cables in the strain relief.
Caution
The controller, as the controller of the water heater, is phase-sensitive. It is
absolutely
essential
to connect the mains live (L) to the live of the water heater, and the mains
neutral (N) to the neutral of the water heater.
Caution
There must be
no potential difference
between neutral (N) and earth ( ). If this is the
case, then an isolating transformer must be used in the supply circuit.
Connecting DHW pump
The Theta dual service module is supplied with a DHW-pump (3-wire connection,
230 V
AC
). You must connect this pump to the controller of the dual service system.
Terminal
Type
Colour
Description
17
Earth
yellow/green
Earth DHW-pump.
18
Neutral
blue
Neutral DHW-pump.
20
Live
brown
Live output of controller to DHW-pump.
Note
Fit cables in the strain relief.
Connecting heating pump
The heating pump (3-wire connection, max. 0,8A) is mounted in the heating system. You
must connect this pump to the controller.
Terminal
Type
Colour
Description
14
Earth
yellow/green
Earth heating pump.
15
Live
brown
Live output of controller to heating pump.
16
Neutral
blue
Neutral heating pump.
Note
Fit cables in the strain relief.
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