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36
CONNECTIONS – PLUMBING
All plumbing work must be carried out by a qualified person and in accordance
with the Standard AS/NZS 3500.4 and all local codes and regulatory authority
requirements.
CONNECTION SIZES
Rheemglas
49 series
RheemPlus
421 series
Hot water connection:
Rp 3/4
G 3/4 B
Cold water connection:
Rp 3/4
G 3/4 B
Relief valve connection:
Rp 1/2
Rp 1/2
WATER INLET AND OUTLET
Rheemglas 49 series 080 to 400 models have dual handed cold and hot water
connections. The water connections can be made to either side. RheemPlus
421 series 125 to 315 models have cold and hot water connections on the left
hand side only.
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 an approved thread sealant such as Teflon tape
on all sealing threads.
An isolation valve and non-return
valve must be installed on the cold
water line to the water heater. An
acceptable arrangement is shown in
the diagram. Refer also to “Hot
Water Delivery” on page 27 and to
“Mains Water Supply” on page 26.
A disconnection union must always
be provided at the cold water inlet
and hot water outlet on the water
heater to allow for disconnection of
the water heater.
This water heater has either a plastic dip tube or fitting
liner 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.
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