Oilon RE 35, Инструкция по установке и эксплуатации

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RE01 1445EN 17 (67)
2.4. Piping diagrams
A filter should always be installed on both the heating circuit
return line and the brine circuit return line before the heat pump.
Install a shut-off valve on both sides of the filter to facilitate easy
cleaning and replacing of the filter element.
2.4.1. Ground circuit piping
We recommend to install the line regulation valves with flow meters, shut-off valves
and pressure gauge as shown in the following figure. If there is a risk that the ground
circuit pipes are not clean, install two filters to the return line to ensure fluent flow.
RE04 ver. 2
A filters
B pressure gauge
C safety valve
D expansion tank
E line regulating valve with flow meter