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Commissioning Procedure
Solar Circuit
It is necessary to commission and check the operation of the solar circuit upon initial
installation and whenever closed circuit fluid is lost due to leakage or when performing a
closed circuit component replacement procedure i.e collector replacement. The
commissioning procedure includes:
• Checking the circulation of closed circuit fluid through the solar circuit.
• Checking the drain back function of the solar circuit.
• Pressure testing the solar circuit to ensure there are no leaks.
• Checking the level of the closed circuit fluid and adjusting if required.
The water heater is supplied charged with closed circuit fluid. The level of the closed circuit
fluid only needs to be checked if:
• A third solar collector is installed.
• There is a significant leak in the solar pipe work and closed circuit fluid has been
discharged.
• The maximum recommended solar pipe length is exceeded.
• A second solar pump is installed if the maximum height from the base of the solar
storage tank to the top of the solar collectors exceeds 9 m (refer to Maximum Total
Pipe Lengths table on page 12).
Additional Equipment
Additional equipment will be required for the commissioning and checking of the solar
circuit. This includes checking the closed circuit fluid level and conducting a drain back
test. The following equipment is required:
• A 1500 mm long x 12 mm (½") diameter clear hose (closed circuit fluid level hose).
• One (1) ½" hose clamp.
• A suitable plug for one end of the hose.
• Suitable tape to affix the hose to the side of the solar storage tank.
• A torch to illuminate the working area under the heat exchanger and storage tank
cylinder.
• A non-permanent marker.
Closed Circuit Fluid
The water heater is supplied charged with closed circuit fluid and it is not necessary to add
further closed circuit fluid to the system. If the closed circuit fluid has been completely
drained or discharged from the solar circuit and needs to be replaced, then the amount to
be added is:
• 4.5 litres of concentrate, mixed with
• 11.5 litres of water.
It is necessary to undertake the solar circuit commissioning procedure if the closed circuit
fluid has been replaced.
TM024 Premier Loline Solar Drain back Service Instructions REV: A
D.O.I: 12/12/2007
This document is stored and maintained electronically by
57
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled"
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