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6. Disconnect the drain line from the solar circuit relief valve at
the top of the solar storage tank. Remove the spring clip from
the solar circuit relief valve and remove the valve.
Warning: The solar circuit may be under pressure.
Take care when removing the solar circuit relief valve,
as a sudden discharge of pressurised hot vapour may
be experienced. This discharge will create a sharp
sound of vapour being released.
7. Open the heat exchanger drain valve and remove the plug
from the end of the hose. The closed circuit fluid will flood the
hose to the static level of the closed circuit fluid inside of the
heat exchanger.
8. Mark the static level of the closed circuit fluid on the side of
the solar storage tank with a non permanent marker.
Solar Circuit Circulation
9. Disconnect the hot sensor lead from the connecting plug
located on the tab in the upper front cover opening.
It is important, at the end of this procedure when the
commissioning and checking of the solar circuit is complete,
to reconnect the hot sensor lead, otherwise when the
electrical supply is switched on, the solar pump will
deactivate after one hour and the solar control unit will then
enter a fault mode and no solar gain will be achieved.
10. Switch on the electrical supply at the isolating switch to the solar storage tank.
Warning: Take care not to enter the area inside the solar storage tank behind
the access covers whilst the power is on as the electrical circuit will be live.
The red LED on the solar monitor label will start flashing.
The pump will activate and commence pumping closed circuit fluid around the solar
circuit.
The level of the closed circuit fluid in the clear hose will slowly drop to the dynamic
operating level.
Allow the pump to operate for three (3) minutes (one and two collector systems) or for
five (5) minutes (3 collector system) to allow the solar circuit to fill with closed circuit
fluid and stabilise.
Note: The solar pump will operate for one hour with the hot sensor lead disconnected,
before automatically turning itself off (refer to step 13).
11. Check the closed circuit fluid is circulating around the solar circuit.
To check circulation:
•
Listen for the trickling sound of the closed circuit fluid returning into the heat
exchanger by placing your ear against the side toward the top of the solar storage
tank. If the fluid is circulating around the solar circuit, a trickling sound will be
heard as the fluid returns back into the heat exchanger.
If no trickling sound is heard, check:
TM024 Premier Loline Solar Drain back Service Instructions REV: A
D.O.I: 12/12/2007
This document is stored and maintained electronically by
60
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled"
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