The expansion card is an accessory, which, when connected to the heat pump, provides the following extra functions.
Application
- Cooling
The heat pump can be used to produce cooling in summer. Either by passive cooling (cold retrieved from the borehole) or a combination of passive and active cooling (cooling produced by the heat pump compressor). Heat pump can produce cooling only in “heat stop mode“.
- Shunt
Used when the heating system needs to settle into a second temperature level, eg when you combine radiators with wet floor heating or when a shunt group is controlled by a separate heating curve (curve 2).
- Swimming pool
Used to control the temperature in a swimming pool. Temperature controlled by a separate sensor regardless of the heating system and hot water.
- Power limiter
Allows reducing the auxiliary heater to a power corresponding to the maximum available start current. (To use the function power monitor as needed refer to 3 the piece toroidal transformers.)
