Rheem 300 series - Manual (Page 20)

20
CONNECTIONS – PLUMBING
CONNECTION SIZES
•
Hot water connection: RP¾/20.
•
Cold water connection: RP¾/20.
•
Relief valve connection: RP½/15.
•
Gas inlet: RP½/15.
All plumbing work must be carried out by a qualified person and in accordance
with the National Plumbing Standard AS/NZS 3500.4 and local authority
requirements.
All gas work must be carried out by a qualified person and in accordance with
the Australian Gas Installations Standard AS
5601 and local authority
requirements.
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 fittings.
An isolation valve and non return
valve must be installed on the cold
water line to the water heater. Use
the arrangement shown in the
diagram. Refer also to
“Hot Water
Delivery” on page 15.
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.
All water heaters have 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.