HISEER VR2002, Установка, эксплуатация и обслуживание

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9. Where there is more than one ground loop these must be connected in parallel
with a means of adjusting the flow. For surface soil heat, the pipe should be buried
at a depth of about 1.8 meters and the distance between the hoses should be at
least 1 meter.
10. For bore holes the distance between the holes must be at least 15m.
11. Installation should be inspected before it is commissioned. The inspection must be
carried out by a suitably qualified person and should be documented. The above
applies to closed loop heating systems as well. If the heat pump is replaced the
installation must be re-inspected again.
12. After filling the brine ,check circuit pressure. The pressure should be approx 2 bar.
Minimum system pressure 1 bar, Max pressure should not be over 3 bar.
Pipe Connections (Indoor Side) :
1. Pipe connections for the indoor side are located on the top of the unit.
2. Ensure all required safety devices, shut-off valves (as close to the heat pump as
possible) and particle filter are fitted
．
The safety valve must have a maximum 3
bar opening pressure and be installed on the water outlet.
3. An expansion vessel that is the correct size for the system must be installed.
Ensure that the diaphragms and seals of the expansion vessel including any safety
valves are suitable for the heat transfer medium.
4. The entire length of the overflow water pipe from the safety valves must be
inclined to prevent water pockets and must also be frost proof if required.
5. Thoroughly flush the heating system.
6. Carry out a leak test.
7. Operating pressure: 2 bar. Max pressure must not be over 3 bar.
Installation
IMPORTANT:
When connecting to a system with thermostats on all radiators a bypass valve
must be fitted, or some of the thermostats must be removed to ensure sufficient
flow through the heat pump.