PATENTS
This water heater may be protected by one or more patents or registered designs in the name of
Solahart Industries Pty Ltd, Rheem Australia Pty Ltd or Paloma Co., Ltd.
Solahart Industries Pty Ltd is the supplier of the Solahart range of continuous flow gas water heaters,
manufactured by Paloma Co., Ltd., a world leader in water heater technology and manufacture.
TRADE MARKS
®
Registered trademark of Solahart Industries Pty Ltd or Rheem Australia Pty Ltd.
™ Trademark of Solahart Industries Pty Ltd or Rheem Australia Pty Ltd.
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
The solar hot and solar cold pipes between the solar storage tank and the solar collectors
MUST BE
of copper. All compression fittings must use brass or copper olives.
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 if exposed
extend through any penetrations in the eaves, ceiling and roof
cover valves and fittings in the solar hot and solar cold pipe work
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.
There
MUST BE a continuous fall
of a minimum 5° (1 in 10 grade) in the pipe work between the
solar collector and solar storage tank for efficient and effective drain back to occur. The highest point
of the solar cold pipe and solar hot pipe must be where they connect to the solar collector.
The system has NO WARRANTY for freeze damage if there is not a continuous fall in the solar hot
and solar cold pipes, or they are not insulated in accordance with the installation instructions, or the
closed circuit fluid has been incorrectly mixed.
The insulated copper pipe work:
should be fixed at suitable locations to prevent or reduce the possibility of noise from water
hammer and vibration from occurring
is not to be placed or installed in contact with plastic pipe work.
Likewise, plastic pipe work is not to be placed or installed in contact with the insulated copper
pipe work after the solar circuit is installed.
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 of 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 severe water damage and flooding.
The pressure applied to the solar circuit and solar collectors during a pressure test of an indirect
closed circuit system
MUST NOT
exceed 200 kPa, otherwise damage may result to the solar
collectors. Refer to
on page 33.
