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INSTALLATION – SOLAR COLLECTORS
SOLAR COLLECTOR LOCATION
The solar collectors must be installed in a shade free position. The surrounding vicinity 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.
Sufficient space should be left around the thermosiphon solar water heater to allow for safe service access.
Roof area required (excluding service and access space):
180 litre x 1 collector
305 litre x 2 collectors
305 litre x 3 collectors
The installation must comply with the requirements of AS/NZS 3500.4 and all local codes and regulatory
authority requirements. Refer to
connection details of the solar hot and solar cold pipes.
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 storage tank, 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.
The solar storage tanks, when full of water, weigh approximately 495 kg (305 litre) and 292 kg (180 litre).
Each S200 solar collector and its fittings weighs up to approximately 60 kg when full of closed circuit fluid
and each Australia and Titan solar collector and its fittings weighs approximately 43 kg when full of water.
ORIENTATION OF SOLAR COLLECTORS
To help maximise system performance, solar collectors should be installed with an optimum orientation
facing true north (in the southern hemisphere) or true south (in the northern hemisphere). Always check for
true north or true south using a compass or other suitable device.
The solar performance of a system reduces as the orientation of the collectors moves away from the
optimum orientation, resulting in the need for increased boosting to supply the same hot water load. Solar
collectors facing up to 45° from the optimum orientation will receive about 4% to 5% less total solar radiation.
However, the optimum orientation of solar collectors is not always practical or achievable. Solar collectors
may be installed up to 90° from the optimum orientation. Where the orientation is greater than 60° from the
optimum, either an additional solar collector or selective surface collectors in lieu of non selective surface
collectors may be installed to make up for the reduction in solar performance where such an alternative is
available. Each of these options should be discussed with the system owner. If neither of these options is
possible nor acceptable to the system owner, then the system owner needs to be made aware of,
understand and accept that increased boosting may be required to meet their hot water requirements.
"Solar Collectors"
Refer to
this system.
–
1.5 m wide x 2.5 m deep.
–
2.5 m wide x 2.5 m deep.
–
3.5 m wide x 2.5 m deep.
"System Assembly"
on page 19 for additional information on the selection of type of solar collectors for
Weight (full) up to 289 kg approx.
Weight (full) up to 485 kg approx.
Weight (full) up to 496 kg approx.
on page 37 for the procedure to mount the system and
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