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INSTALLATIoN
Maintenance
Note
f Make the thermal insulation on the heat source
f
flow and return lines vapour diffusion-proof in
order to prevent the formation of condensate on
these lines.
Note
f The thermal insulation material is excluded from
f
our standard delivery.
5. Maintenance
5.1
Safety valve
When cracking open the safety valve, heating water should
be expelled at full flow. Constant dripping may be indicate a
contaminated valve seat.
f Close the respective sliders or ball shut-off valves.
f
f Undo the top section of the safety valve.
f
f Clean the valve seat.
f
f If necessary, renew the gasket.
f
f Fit the top section of the safety valve.
f
5.2 Pressure gauge
Note
The operating pressure in the heating system must
not exceed 0.25 MPa positive pressure.
f Check the operating pressure at regular intervals.
f
f If the operating pressure drops, top up the system with
f
water.
5.3 Venting the system
When filling the system with water, air enters the pipework
and cylinder.
f If you use a manual air vent valve, vent the heating system
f
repeatedly, particularly during the initial period following
commissioning.
f Every time you vent the heating system, top it up with
f
water.
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WPKI-Set
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