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Auxiliary Source
Intelligent management of energy sources, used only when needed, with special focus on running costs
Auxiliary resource management
Nadisystem can manage auxiliary resources so as to guarantee the building heat demand at low outside temperatures, by supplementing the capacity of the heat pump. System operation can be distinguished as monovalent, all-electric or bivalent.
Monovalent
For monovalent operation, the heat pump has to meet the entire demand of the building. There may be excessive heating capacity of the heat pump, above all when the outside air temperature is above zero, as well as high power consumption. Make sure the home’s energy meter is correctly sized. The solution is suggested for new homes.
All-electric
In all-electric operation the heat pump is supplemented by an electric heater to meet the entire demand of the building. The electric heater is activated below certain outside temperatures so as to satisfy demand in the building that the heat pump cannot manage on its own. Considering the reduced number of hours of heat pump operation at low outside temperatures during the winter period, operation of the supplementary heater will also be reduced, and consequently power consumption will be negligible. Therefore the system’s seasonal energy efficiency remains unchanged. This solution is suggested for new homes and lower investments than monovalent heat pumps.
Bivalent
In the case of bivalent operation the heat pump meets the needs of the building down to a certain outside temperature, called the bivalence point. Below the bivalence point the heat pump switches off and only the auxiliary source (e.g. boiler) provides heat for the building. This solution is ideal for traditional systems and renovations.
