SERO BWA-SS-10 User Manual - page 5
The heat pump has three separate liquid circuits
Brine sytem circuit
– a water-based mixture (brine) transporting energy from heat source to heat pump.
Refrigerant circuit
– circulating inside the heat pump. Through evaporation, compression and condensation it
absorbs energy from the Brine sytem and releases it to the heat carrier. The refrigerant is chlorine-free.
Heating circuit
– water transporting heat energy to the heating system (radiators/floor coils) and the water
heater.
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Brine system circuit
Brine system
2.3 Water Heater
BWA-SS series comes with a built-in water heater holding 150 or 200 litres. The temperature of the water sent to
the water heater is controlled by the regulating pressure switch and cannot be adjusted. Warm water production is
stopped when the regulating pressure switch reaches its operating pressure, which corresponds to about 50-55°C warm
water temperature. At regular intervals the water in the water heater will be heated to as much as 65°C as a preventive
measure against bacteria. The preset interval is 14 days. For more information, please refer to ”Warm Water Production”
on page 24.
.
The
heat pump has
three
separate
liquid
circuits
2.2 Auxiliary Heater – Electric Heating Element
The auxiliary heater – an electric heating element fitted on the supply line – has three capacity steps:
Step 1 = 3 kW
Step 2 = 6 kW
Step 3 = 9 kW