Specifications

TM024 Premier Loline Solar Drain back Service Instructions REV: A
D.O.I: 12/12/2007
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
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• The hot sensor lead is disconnected at the solar storage tank.
If connected, disconnect the hot sensor lead at the solar storage tank (refer to step
9).
• The isolation valve in the pipe work between the outlet of the heat exchanger and
the solar pump, located behind the pump access cover of the solar storage tank, is
fully open.
Warning: Switch off the electrical supply at the isolating switch to the solar
storage tank before entering the area inside the solar storage tank behind
the pump access cover.
If closed, open the isolation valve on the outlet of the heat exchanger (refer to step
4).
• There is no leakage from the solar circuit. It is important to check all of the solar
circuit pipe work, including in the roof space and on the roof.
If leaking, rectify any leaks in the solar circuit.
• The height from the base of the storage tank to the top of the collectors has not
exceeded the maximum allowable height.
• The length of solar cold and solar hot pipe has not exceeded the maximum
recommended pipe length.
If the maximum allowable height or the maximum recommended pipe length has
been exceeded, it may be necessary to relocate the solar collectors to either a
lower level or closer to the solar storage tank, or install a second solar pump, or
relocate the solar storage tank closer to the solar collectors (refer to Maximum
Total Pipe Lengths table on page 12).
12. Mark the dynamic level of the closed circuit fluid in the hose
on the side of the solar storage tank with a non permanent
marker when satisfied the solar circuit circulation is operating
satisfactorily.
13. If the procedure to check the solar circuit circulation is not complete before the pump
has automatically turned off, then:
• Switch off the electrical supply at the isolating switch to the solar storage tank.
• Wait one (1) minute for the operating system to reset to its commissioning
sequence, otherwise the pump may not operate when the power supply is
switched on.
• Recommence this procedure from step 10.
Drain Back Function
14. Switch off the electrical supply at the isolating switch to the solar storage tank.
The red LED on the solar monitor label will stop flashing.
The pump will deactivate.
The closed circuit fluid will drain back down to the heat exchanger and the level of the
closed circuit fluid in the clear hose will rise.
Wait five (5) minutes to allow the drain back of the closed circuit fluid in the solar
circuit.