Kingspan Varisol, Руководство по установке

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Varisol Installation Manual
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The evacuated tubes should be installed at a time when there is very low light such as
late afternoon when the sun is low and not particularly strong. Alternatively the tubes
should be covered. This is important as tube connections can heat up considerably in
a short space of time and have potential to cause injury even if the glass temperature
remains cool.
Expansion Vessel
IMPORTANT: Prior to filling the system, the expansion vessel pressure must be set
0.3 Bar below the system pressure. Omitting to perform this check will result in
irregular pressure readings during the commissioning of the system.
The pressure is checked at the base of the vessel and the bleed valve may be bled or
topped up with a pump.
Filling the Loop
It is important that a motorised flush and fill centre is used to fill and pressurise the
system with Tyfocor® LS as follows:
1. Open the fill and drain valves to allow the liquid to circulate around the solar loop
2. Turn the hot and cold temperature gauges 45 ˚ clockwise.
3. Close the isolating valve above the flow meter to ensure all air and liquid passes
through the fill centre to filter any air and contaminants.
4. Run the fill centre pump to circulate the Tyfocor® LS for approximately 20 minutes.
5. Open and close the isolating valve intermittently to circulate air bubbles which may
accumulate in the sight glass.
6. Return isolating valve to closed position.
7. When the solar loop has been purged of air, close the bottom/drain connection – the
fill centre will begin to pressurise the solar loop.
8. Reopen the isolating valve above the flow meter fully.
9. Fill the loop until the pressure gauge just exceeds the required pressure, stop the
pump and immediately close the fill connection. Check pipe joints on the solar loop
for leaks and check that pressure is not lost over a 30 minute period.
10. If all the plumbing is sound, set the system pressure by opening the return connection
until the required pressure is met.
11. Return the temperature gauges to the original position.
12. The fill centre may now be disconnected.
13. Cap the fill and drain points with the brass covers provided.
The pipes from the flush and fill
centre should be connected as
shown in the diagram:
Commissioning the System
FILL
DRAIN
FLUSH AND FILL CENTRE