34
Connecting the collector to the heat pump
The sketch shows the connection of a collector with two parallel coils. Both coils are connected to two
distributors. Each coil should have a gate valve and a control valve. The control valve is adjusted so
that the flow is the same in both coils.
The joint pipe to the heat pump is fitted with a filling unit, a particle filter and an expansion vessel. A
safety valve is fitted to the outgoing duct. When refilling with the heat transfer fluid circuit, a coil at a
time is filled by shutting both valves completely.
Heat pump
Filling unit
Safety valve
Distributor
Filter
Ground,
lake or
rock
collector
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