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InstallatIon
Installation
5. Installation
5.1
Fitting the drain hose
f Fit the drain hose supplied to the safety valve.
f
f size the drain hose so that brine can drain off unimpeded
f
when the safety valve is fully opened.
f lay the safety valve drain hose with a constant fall to the
f
drain.
f Ensure that the safety valve drain hose is open to the
f
outside.
5.2 Charging the heat source system
1
5
1 shut-off valve, heat source flow
2 Quick-action air vent valves
3 shut-off valve, heat pump flow
4 Filling
5 Drain
f Close the shut-off valve in the heat source flow.
f
f open the shut-off valve in the heat pump flow.
f
f Connect the refrigerant flow line to the charging side of
f
the unit.
f Connect the refrigerant return line to the draining side of
f
the unit.
f Carry out a pressure test. Remove the safety valve and in-
f
sert the plug supplied.
2.
1.
1 safety valve
2 Plug
f Check for tightness.
f
WPsF
2
3
4
1
3.
4.
f Charge the heat source system to the required operating
f
pressure. For this, observe the maximum operating pres-
sure (see chapter "specification / Data table")
f Close the shut-off valve in the heat pump flow.
f
f Remove the plug and refit the safety valve.
f
f Vent the heat source system via the quick-action air vent
f
valve.
f after venting, close the quick-action air vent valve.
f
5.3 Removing the strainer
If there is a high pressure drop in the heat source system, you
can remove the strainer in the filter chamber of the product
(see chapter "specification / Pressure drop diagram").
Material losses
!
f For opening and closing the filter chamber, use
f
exclusively the hook wrench supplied.
1 strainer
2 Filter cartridge
2
f open the filter chamber. Remove the filter cartridge.
f
f Remove the strainer from the heat pump flow.
f
f Re-insert the filter cartridge. Close the filter chamber.
f
f tighten the cover with a torque of 15 nm.
f
f open the shut-off valves in the heat source flow and the
f
heat pump flow.
f Vent the heat source system via the quick-action air vent
f
valve.
f after venting, close the quick-action air vent valve.
f
6. Maintenance
f Clean the filter cartridge if required.
f
1
2
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