INSTALLATION – SOLAR COLLECTORS
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• The installation must comply with the requirements of AS/NZS 3500.4 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.
LATITUDE OF SOME AUSTRALIAN CITIES
Adelaide 35°S Cairns 17°S Hobart 42°S Port Hedland 20°S
Alice Springs 24°S Canberra 35°S Mildura 34°S Rockhampton 24°S
Brisbane 27°S Darwin 12°S Melbourne 38°S Sydney 34°S
Broken Hill 31°S Geraldton 28°S Perth 32°S Townsville 19°S
PIPE LENGTHS
The maximum recommended combined length of the solar cold and solar hot
pipes with bends is:
Maximum recommended total combined pipe length and number of 90° bends
1 or 2 Collectors 3 Collectors 4 Collectors
Pipe
Size Pipe Length 90° Bends Pipe Length 90° Bends Pipe Length 90° Bends
DN15 40 metres 20 30 metres 20 15 metres 20
DN20 NR NR 40 metres 20 40 metres 20
For each additional 90° bend, reduce the maximum total pipe length by 0.5 metres.
For each additional metre of pipe length, reduce the number of 90° bends by two.
Note: One 90° elbow is equal to two 90° bends.
NR – not recommended.
The solar hot and solar cold pipes between the solar storage tank and the solar
collectors should be a minimum DN15.
Maximum height to collectors
The maximum height of a solar Loline installation, from the solar controller
(circulator) to the top of the solar collectors, is determined by the maximum
recommended total pipe length for the system and the water supply pressure.
The maximum recommended total pipe length of the solar circuit should not be
exceeded and a minimum water supply pressure of 200 kPa should be
available at the inlet to the system, otherwise the system performance may be
reduced or the solar circuit may not be purged of air during the commissioning
of the system.