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FOR THE INSTALLER
You can connect the collector hose to the heat pump with one or more circuits. In a multi-circuit solution, the collector
hoses are connected in parallel as illustrated below. The parallel hoses are connected to two distributors. Each coil should
have a shutoff valve and a control valve. The control valve is adjusted so that the fl ow rate is the same in the coils.
After the distributor and the valves, the coils are connected to a collecting pipe. A fi lling unit, particle fi lter and an
expansion vessel are connected to the collecting pipe. A safety valve is connected to the outgoing pipe. The safety valve
leads off any overpressure.
One circuit at a time is fi lled with heat transfer fl uid. Keep the valves closed in the other loops during the process. Read
more about fi lling under the headings Connecting the heat pump to the heating system /Filling water in the heating system
and Filling the heat transfer fl uid in the collector hose.
Heat pump
Expansion tank
Filter
Filling unit
Distributor
Ground, lake or rock
collector
Multi-circuit solution
Heat pump
Expansion tank
Filter
Filling unit
Ground, lake or
rock collector
Single circuit solution
Control valve
The heat pump and collector hose in general
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