User manual

The heat pump is, therefore, a very environmentally friendly and eco-
nomical way of heating a house.
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Figure 1. The principles of the heat pump
The heat pump has four separate fluid circuits
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Brine circuit (1) – is a fluid (brine) filled hose lowered into a lake, buried
in the ground or lowered into bedrock. The brine obtains energy from
the surroundings by the fluid temperature in the hose being heated
a few degrees.
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Refrigerant circuit (7) – is a circuit in the heat pump that through
evaporation, compression and condensation takes energy from the
brine circuit and supplies it to the heat transfer fluid circuit. The refrig-
erant is chlorine free.
User manual VUGFA102 – 7