Balancing Vessel; Boiler Connection Kit; External Connect Kit; Cooling Kit - Fujitsu WATERSTAGE 112 Maintenance Document

Heat Pump, Split System, Single Service, 3 phase
Connections
The room central unit must be connected to terminal
b (CL+, CL-, G+) of the heat pump controller board.
To do this, you can use a 0.5mm² cable of the two-
pair telephone cable type.

11.5 Boiler connection kit

An oil or gas boiler may be connected to the heat
pump. Such a connection requires the purchase of
the backup kit module, which includes a 3-way
selection valve designed to isolate the boiler, and a
pressure breaker.
When a boiler is connected to the heat pump, the
electric auxiliaries installed in the heat pump must not

11.6 Cooling kit

See installation instructions "cooling kit" no. 1357.
11.7 High flow rate circulation pump kit
See installation instructions "High flow rate circulation pump kit" no. 1360.
11.8 Heat exchanger for swimming pool
See installation instructions "Heat exchanger for swimming pool" no. 1345.
11.9 DHW tank
See installation instructions "DHW tank".

11.10 Balancing vessel

See installation instructions "Balancing vessel".

11.11 External connect kit

See installation instructions "External connect kit".
130
Terminal T75 Control terminal
1 CL+
2 CL-
3 G+
If the cable is shielded, the shielding can be
connected to the controller CL- terminal. It may under
no circumstances be connected on both sides, i.e.
controller side and room unit side.
Function
BSB data
BSB ground
Power supply 12
be connected, as it is the boiler which provides
additional heating on the coldest days.
The boiler is controlled by the heat pump. If the boiler
has its own control system, you must disconnect or
disable the system by assigning it the highest
setpoint.
Maintenance Document 1394-1