Viessmann PV1, Инструкции по обслуживанию для подрядчиков

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Checking the thermal insulation
Checking the water quality
Observe the instructions in chapter "Water quality
requirements".
Enter the amount of top-up water and the total hard-
ness of the feed and boiler water into the table on
page 23.
The total hardness of the feed and top-up water must
not exceed 0.11 °dH (total value of alkaline earths
≤
0.02 mol/m
3
).
The pH value should be between 9 and 10.5.
Cleaning the sight glass in the boiler door
Fig. 6
Check the gaskets and hose connection for leaks.
Checking the mixer for ease of operation and tightness
1. Remove the motorised lever from the mixer han-
dle.
2. Check the mixer for ease of operation.
3. Check the mixer for tightness. Replace the O-rings
if the mixer leaks.
4. Click the motorised lever into place.
Checking the function of the return temperature raising facility (if
installed)
Checking the installation room ventilation
Checking the flue pipe for leaks
Commissioning, inspection, maintenance
Checking electrical plug-in connections and cable grommets for firm seat-
ing
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