INSTALLATION INFORMATION
Rinnai
9
Split Collector IM
WATER PIPES AND FITTINGS
WARNING
The solar hot and solar cold pipes between the solar storage tank and the solar collectors must be
suited to the high water temperatures and pressures that may occur. As such, plastic pipe must not
be used. Components used to join pipes must use metallic materials to achieve sealing. The collector
flow and return pipes should be 15mm copper tube.
Capillary silver solder is a suitable joining method.
All hot water pipework should be insulated with sealed polyethylene foamed or equivalent insulation to optimise
performance and energy efficiency. Such insulation may also be mandatory under local regulations. Rinnai
recommend insulation to achieve an R value of 0.6 K.m2/W or higher depending on location. With the exception
of solar collector flow and return pipes, water pipe sizing should be performed in accordance with AS/NZS 3500.
The suggested maximum combined length of the solar flow and return lines is 40 metres. Pleaser refer to the
systems installation manual supplied with the pump kit for the maximum pipe length for the specific pipe kit.
All external pipework MUST be insulated to prevent frost damage. All fittings MUST be insulated to protect from
frost damage, with the exception of the air bleed valve. .
