Connections - Plumbing - Rheem Solar Hiline 52D Series Owner's Manual And Installation Instructions

All plumbing work must be carried out by a qualified person and in accordance with the requirements of
Standards AS/NZS 3500.4 and all local codes and regulatory authority requirements.
Warning: Certain types of plastic pipe, such as polybutylene pipe, are not suitable to be used as a hot
water pipe between:
•
this water heater and a temperature limiting device, and
•
this water heater and a hot water outlet if a temperature limiting device is not installed.
This water heater can produce water at a temperature and pressure which can exceed the performance limits
of these types of pipe. This may result in pipe failure leading to severe water damage to the property. If one of
these types of plastic pipe is used as a hot water pipe in the property, then a temperature limiting device must
be installed between the water heater and this pipe work.
Note: The solar storage tank of a solar water heater should not be installed as part of a circulated hot water
flow and return system in a building. The benefits of solar gain will be significantly reduced. If a circulated flow
and return system is required, refer to
CONNECTION SIZES
•
Hot water connection:
•
Cold water connection:
•
Relief valve connection:
WATER INLET AND OUTLET
All pipe work must be cleared of foreign matter before connection and purged before attempting to operate the
water heater. All olive compression fittings must use brass or copper olives. Use thread sealing tape or
approved thread sealant on all sealing threads other than a fitting with an O'ring seal.
An isolation valve and non-return valve must be
installed on the cold water line to the water heater. A
trio valve and expansion control valve is supplied in
the pipe kit supplied with the water heater. An
acceptable arrangement is shown in the diagram
on page 53 for multiple installations. Refer also to
"Hot Water Delivery"
on page 25 and to
Supply"
on page 24.
The cold water isolation valve and expansion control
valve must be accessible from ground or floor level.
They must not be installed either on the roof or in the
ceiling space, unless it is an accessible trafficable
area. Extend the cold water line to the cold water inlet
fitting on the shoulder of the solar cold pipe.
A disconnection union must always be provided at the cold water connection and
hot water Tee at the hot water on the solar storage tank to allow for disconnection
of the solar storage tank. The pipe work from the hot water outlet must not be
installed in front of or prevent access to the electrical cover of the solar storage
tank.
This solar storage tank has either a plastic stratifier or dip tube in the inlet and
outlet fittings (see diagram). These must be in place for the water heater to
function properly. Do not remove or damage them by using heat nearby. They
will be pushed into the correct position as the fitting is screwed in.
CONNECTIONS – PLUMBING
"Circulated Hot Water Flow and Return System"
G 1/2 M olive
G 1/2 M olive
Rp 1/2
and
"Mains Water
tank connection: Rp 3/4
tank connection: Rp 3/4
47
on page 26.