AM, EM, AQ, BA, ASW - IOM
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5.4.3 AQ Multi-circuit Heating System – DHW Heating Using Charge Pump
Universal scheme for multi-circuit heating systems with accumulation vessel. Local regulation
can be applied here for 100% of heating output. The volume of the accumulation vessel is
determined for 15 l/kW of heating output of the heat pump for B0W35. Heating of DHW is
provided by a charge circulation pump from the accumulation vessel of the heating system.
Regarding the type of DHW tank, follow instructions in Chapter “Preparation of Domestic Hot
Water”.
tap water inlet / DHW outlet
venting valves
mixing HC
pump HC
DHW
charging pump
filtrball
safety valve
DN25/2.5bar
expansion
vessel
heating system buffer
DHW tank
AQ machinery room for multi-circuit heating system – charge heating of DHW