AM, EM, AQ, BA, ASW - IOM
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5.4 Connection of AQ Heat Pumps
These are units of the “MINI” type which is not equipped with an accumulation vessel.
5.4.1 AQ Single-circuit Heating System
Typical usage is for floor heating, except for “dry system of floor heating”. In this method of
direct connection of the heat pump to the heating system, maximally 30% of the heating system
can be equipped by local regulation. In the case of usage for radiators it is also necessary to
comply with the requirement of minimum heating water volume of 15 l/kW of the heating output
of the heat pump at B0W35. The DHW heating is provided by a 3-way switching valve.
Regarding the type of DHW tank follow instructions in Chapter “Preparation of Domestic Hot
Water”.
tap water inlet / DHW outlet
desuperheater (optional) pump loop
pump HC
solar
system
3 way valve
venting valve
ball
filtrball
valves
safety valve
heating system
DN25/2.5bar
expansion
vessel
solar system expansion
vessel and safety valve
DHW tank
AQ machinery room for single-circuit heating system