Rheem Water Heater Manuel D’Utilisation
INSTALLATION – SOLAR COLLECTORS
37
•
The installation must comply with the requirements of AS/NZS 3500.4 and
all local codes and regulatory authority requirements.
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.
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.