Rheem 511161 Owner's Manual And Installation Instructions page 42

INSTALLATION – SOLAR COLLECTOR(S)
Pressure Testing
The solar water heater, including the collector circuit, is to be isolated during the testing and commissioning of
the heated water reticulation system in a building in accordance with Clause 9.3 (a) of AS/NZS 3500.4:2015
and 2018 or Clause 3.34.2 (a) of AS/NZS 3500.5:2012 for a Class 1a or Class 10 building as applicable under
the Plumbing Code of Australia. The collector circuit includes the solar hot and solar cold pipes and solar
collectors.
It may be necessary to pressure test the collector circuit to comply with codes and regulatory authority
requirements or on other occasions where the solar collector(s) and solar hot and solar cold pipes are installed
prior to the solar storage tank, such as on a building site.
Collector Circuit
Warning: The pressure applied to the collector circuit during a pressure test of an open circuit system
MUST NOT exceed 1000 kPa where a CSA2612 or LCS or NPT200 solar collector(s) is installed, otherwise
damage may result.
Open Circuit System
If the solar collector(s), solar pipe work and solar storage tank are installed and commissioned together, then
the flooding of the collector circuit with water under mains pressure for an open circuit system and checking
the pipe work for leaks during the commissioning procedure can be substituted for the pressure testing of the
collector circuit.
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