13
REQUIRED COMPONENTS AND ACCESSORIES
The number of components required for installing the hybrid
heat pump system depends on the installation situation. In
addition to the standard items included, an overview of the
general required components is provided below:
Hydronic
Intergas magnetic
system filter
Ø22 mm
In the return system water pipework to the indoor unit (required)
Spring loaded non-return
valve (full bore)
Ø22 mm
In the heating return pipework to the boiler (required)
Electrical
Three-pole isolator switch
For isolating the 230V AC power to the outdoor unit. The three-
pole isolator switch to be used must have the following:
► Contactor opening distances of at least 3 mm.
4-wire cable (N, L, 3,
) 4 x 1.5 mm
Power and switched live cable from the indoor unit to the outdoor
unit. The cable to be used must have the following properties:
► Cannot be smaller in diameter than those specified
adjacent (in accordance the electrical regulations BS7671).
► Must be suitable for outdoor use with a core thickness of at
least 1.5 mm and a maximum diameter of 14.5 mm.
2-wire low-current signal
cable
2 x 0.8 mm For the connection of the indoor unit to the room thermostat
2-wire low-current signal
cable
2 x 0.8 mm For the connection between the indoor unit and the existing boiler
3.1 Required components
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