NIBE FIGHTER 1250
B
FIGHTER with under fl oor heating systems.
The external circulation pump (CP) is dimensioned for the
under fl oor heating system’s demand. The fl ow through
the heat pump is adjusted using the menu system (menu
2.7).
The internally mounted fl ow line sensor must move out on
the fl ow line.
Pipe connections
Connecting free cooling
The installation can be supplemented with fan convectors,
for example, in order to allow connections for free cool-
ing.
Pipes and other cold surfaces must be insulated with
diffusion-proof material to prevent condensation.
Where the cooling demand is high, fan convectors
with drip trays and drain connection are needed.
The brine system must be supplied with a pressure
expansion vessel. If there is a level vessel this should be
replaced.
Extra electric hot water heater
The heat pump should be supplemented with an electric
water heater if a bubble pool or other signifi cant consumer
of hot water is installed.
Connections/Dockings
FIGHTER 1250 can be connected in several different ways,
some of which are shown below.
More information about the options is available at:
www. nibe.com/docking
For control conditions, see ”section D” where you can fi nd
function descriptions and quick guides.
Connecting ventilation recovery
The installation can be supplemented with the exhaust air
module FLM to provide ventilation recovery.
Pipes and other cold surfaces must be insulated with
diffusion-proof material to prevent condensation.
The brine system must be supplied with a pressure
expansion vessel. If there is a level vessel this should be
replaced.
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