Rheem Premier Hiline Owner's Manual And Installation Instructions page 2

The solar hot and solar cold pipe work between the solar Premier Hiline storage tank and the solar
collectors are supplied in the pipe kit. The supplied copper solar hot and solar cold pipes MUST BE
used.
If the solar water heater is installed either on a metal roof or in a trafficable area, such as on an
accessible roof, then the solar hot and solar cold pipes must be insulated. The solar hot and solar
cold pipes may be required to be insulated to comply with local regulations.
If insulation is required, the full length of the solar hot and solar cold pipes MUST BE insulated.
The insulation must:
be of a closed cell type or equivalent, suitable for a solar water heating application and capable

of withstanding the temperature of the closed circuit fluid generated by the solar collectors under
stagnation conditions
The specification of the chosen insulation material should be checked with the insulation
manufacturer prior to installation as different materials may vary in temperature tolerance.
be at least 13 mm thick, however thicker insulation may be required to comply with the

requirements of AS/NZS 3500.4
be weatherproof and UV resistant

be fitted up to and cover the connections on both the solar storage tank and the solar collectors.

The insulation will offer corrosion protection to a metal roof against water runoff over the copper
pipe, assist in avoiding accidental contact with the solar pipe work as high temperature closed circuit
fluid can flow from the solar collectors to the solar storage tank and also reduce pipe heat losses.
Plastic pipe MUST NOT be used, as it will not withstand the temperature of the closed circuit fluid
generated by the solar collectors under stagnation conditions. The solar collectors can generate
extremely high closed circuit fluid temperatures up to 150°C. Plastic pipe cannot withstand these
temperatures and MUST NOT be used. Failure of plastic pipe can lead to the release of high
temperature closed circuit fluid and cause damage.
There must be a continuous fall of a minimum 10° in the pipe work from the solar Premier Hiline
storage tank to the solar collectors. The highest point of the solar cold pipe and solar hot pipe must
be where they connect to the solar Premier Hiline storage tank, otherwise thermosiphoning will not
occur.
The solar water heater is to be isolated during the testing and commissioning of the heated water
reticulation system in a building, in accordance with Clause 11.1 and 11.3 (a) of AS/NZS 3500.4.
This water heater may be protected by one or more patents or registered designs in the name of
Note: Every care has been taken to ensure accuracy in preparation of this publication.
No liability can be accepted for any consequences, which may arise as a result of its application.
WARNING: Plumber – Be Aware
PATENTS
Rheem Australia Pty Ltd.
TRADE MARKS
®
Registered trademark of Rheem Australia Pty Ltd.
™ Trademark of Rheem Australia Pty Ltd.