Rheem GAS BOOSTED SOLAR WATER HEATER Service Manual download pdf (Page 29)

INSTALLATION – SOLAR COLLECTORS

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 “Solar Storage Tank Location” on page 21

and to “Pipe Lengths” on page 30.

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.

For optimum performance, solar collectors should be

installed facing towards the equator (i.e. north facing in

the southern hemisphere and south facing in the

northern hemisphere). ALWAYS CHECK ORIENTATION

WITH A COMPASS. Where this orientation is not

practical, solar collectors facing up to 45° from the

equator will receive about 4% less total solar radiation.

For optimum performance, inclination of the solar

collectors should be approximately equal to 90% of the

local latitude angle. The latitude of some Australian cities

are listed on page 30. Solar collectors may be installed

at the roof angle for simplicity of installation and

appearance, but must never be less than 10° from the

horizontal. If the roof angle varies by 15° from the

optimum angle, the solar collectors will receive about

10% less total solar radiation.

The collector kit is suitable for installations with an inclination of up to 45°. Where the solar collectors are

installed at inclinations greater than 45°, a With Pitch frame is necessary. Refer to your local Solar

Distributor for details.

For an installation on a roof with a pitch less than 10°, a Variable Pitch stand is required. Refer to your

local Solar Distributor for details.

For an installation of collectors on a pitched roof in a cyclonic or high wind area, a suitable With Pitch

frame is required. Refer to your local Solar Distributor for details.

The installation of these solar collectors on a suitable frame, subject to the frame‟s design criteria not

being exceeded:

 is suitable for installation in geographic locations up to and within Wind Region D (With Pitch frame)

or up to and within Wind Region C (Variable Pitch frame), as defined in the Building Code of

Australia, Australian / New Zealand Standard AS/NZS 1170.2:2002 and the Australian Standard

AS 4055-2006, and

 also provides an acceptable method of installation where it is necessary to satisfy the requirements

of the Building Code of Australia and AS/NZS 3500.4 Clause 6.5.3.4 for high wind areas.

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 collector(s). If in

doubt the roof structure should be suitably strengthened. Consult a structural engineer.

Each solar collector and its fittings weighs approximately 46 kg when full of water.

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.

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Rheem GAS BOOSTED SOLAR WATER HEATER Service Manual Page 29

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