Nibe FIGHTER 1120 - System Description; Principle of Operation

FIGHTER 1120 consists of a heat pump, circulation
pumps and a control system for the heat pump and
any additional heat (an immersion heater is not includ-
ed in the basic design).
FIGHTER 1120 has built-in circulation pumps, making
it easy to connect to the heating medium and collector
circuits.
The absorption of heat from the heat source (rock,
ground or lake) is through a closed collector system
containing water mixed with antifreeze.
Ground water can also be used as a heat source. This
requires an intermediate heat exchanger.
The brine emits its heat to the refrigerant in the heat
pump's evaporator. It then vaporises and is com-
pressed in the compressor. The refrigerant, with its
increased temperature, is led into the where it emits
its energy to the heat medium circuit.
System description
3
FIGHTER 1120
Principle of operation
Brine out
Compressor
Horizontal loop collector Vertical loop collector
Heating water pump
Condenser
Expansion valve
Brine in
Evaporator
Brine pump
Heating water flow
Heating water return
The installation must be fitted
with the necessary safety
equipment in accordance with
the applicable regulations.