Latitude Of Some Australian Cities; Pipe Lenghts; Maximum Height To Collectors - Rheem Water Heater User Manual

INSTALLATION – SOLAR COLLECTORS
•
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
Alice Springs 24°S Canberra
Brisbane 27°S Darwin
Broken Hill 31°S Geraldton
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
Pipe
Size
Pipe Length
DN15 40 metres
DN20 NR
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.
17°S Hobart
35°S Mildura
12°S Melbourne
28°S Perth
3 Collectors
Pipe Length
90° Bends
20 30 metres
NR 40 metres
37
42°S Port Hedland
34°S Rockhampton
38°S Sydney
32°S Townsville
4 Collectors
Pipe Length
90° Bends
20 15 metres
20 40 metres
20°S
24°S
34°S
19°S
90° Bends
20
20