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INSTALLATION – SOLAR COLLECTOR
SOLAR COLLECTOR LOCATION
Consideration must be given to the position of the solar collectors in relation to the solar storage tank. There
are limitations on both the maximum length of the solar hot and solar cold pipes and the maximum height
between the solar storage tank and the solar collectors. Refer to
"Pipe Lengths"
on page 23, to
The solar collectors must be installed in a shade free position. The surrounds should be checked for higher
buildings or trees which may cause shade at other times of the year and for small trees which may grow and
shade the solar collectors in the future.
The installation must comply with the requirements of either AS/NZS 3500.4 or AS/NZS 3500.5:2012 Section 3
(for a Class 1a or Class 10 building) as applicable under the Plumbing Code of Australia, and all local codes
and regulatory authority requirements.
Refer to the installation instructions supplied with the collector kit for details on the installation of the solar
collectors.
ROOF STRENGTH
The installer must ensure the structural integrity of the building is not compromised by the solar water heater
installation and the roof structure is suitable to carry the full weight of the solar collectors and frame (if one is
installed). If in any doubt of the construction or the condition of the roof, the roof should be suitably
strengthened. Consult a structural engineer. Each solar collector and its fittings weigh approximately
36 kg (LCS collector) or 41 kg (NPT200 collector) or 42 kg (CSA2013 collector) when full of closed circuit fluid.
ROOF AREA FOR INSTALLATION
Roof area required for solar collectors:
2 solar collectors
1 solar collector
In addition to this area, a minimum one (1) metre clearance is recommended on all four sides of the solar
collectors for safe service access.
Maximum Number of Collectors
The maximum number of collectors for this drain back closed circuit system are:
160 litre tank
ORIENTATION OF SOLAR COLLECTORS
The optimum orientation of solar collectors, to maximise system performance, is facing true north (in the
southern hemisphere) or true south (in the northern hemisphere).
However, the optimum orientation of solar collectors is not always practical or achievable. If it is not possible
to achieve the optimum orientation, then it is recommended to install the solar collectors as close to the
optimum orientation as possible.
Solar collectors may be installed up to 90° from the optimum orientation when installed as part of this system,
however solar system performance will be reduced. Where the orientation is greater than 60° from the
optimum, selective surface collectors in lieu of non-selective surface collectors, or 2 x LCS solar collectors in
lieu of 1 x CSA2013 solar collector may be installed to make up for the reduction in solar performance.
This option should be discussed with the system owner. If this option is not possible nor acceptable to the
system owner, then the system owner needs to be made aware of, understand and accept that solar system
performance will be reduced and increased boosting may be required to meet their hot water requirements.
The total solar radiation received by solar collectors will reduce by approximately 4% to 5% when facing 45°
from the optimum orientation and approximately 10% to 15% when facing 90° from the optimum orientation.
"Maximum Height To Collectors"
on page 35 and to
–
2.3 m wide x 2.0 m deep
–
1.2 m wide x 2.0 m deep
–
1 x CSA2013 collector
2 x NPT200 or LCS collectors
"Solar Water Heater Storage Tank Location"
Weight (full) up to 82 kg approx.
Weight (full) up to 42 kg approx.
33
on page 36.
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