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INSTALLATION - WATER HEATER
SITE LOCATION
External Systems - Recommended 800mm access clearance from Horizontal Flue Outlets
Internal Systems - Recommended 600mm access clearance.
Refer Australian Standard Gas Installations AS/NZS 5601.1 for further requirements
Secure to the floor or wall as appropriate.
Consult with site structural engineer for any specific securing requirements.
Connect both cold water and hot water piping / valves and fittings as per the requirements of
AS/NZS3500.4
Connect Gas piping / valves and fitting as per the requirements of AS/NZS 5601.1
A secondary flue must be installed with an indoor water heater to discharge combustion
products to outside the building. Each water heater must be individually flued using a Rheem
approved coaxial flue system. A common flue system MUST NOT be used.
Refer
"Flueing"
PIPE SIZES
The pipe sizing for hot water supply systems should be carried out by persons competent to do so, choosing
the most suitable pipe size to ensure adequate flow for each individual application. Reference to the technical
specifications of the water heater and local regulatory authority requirements must be made.
To achieve true mains pressure operation, the cold water line to the water heater should be the same size or
bigger than the hot water line from the water heater.
IN-SERIES BOOSTER
The pipe work between the solar storage tank (if one is installed) and the in-series gas booster, MUST BE of
copper and be fully insulated with a closed cell type insulation or equivalent in accordance with the
requirements of AS/NZS 3500.4.
The insulation must be weatherproof and UV resistant if exposed. The insulation must be fitted up to the
connections on the solar storage tank
GAS INLET
The gas connection is made on the left hand side of the water heater. The pipe work must be cleared of
foreign matter before connection and purged before attempting to operate the water heater. An isolation valve
and disconnection union must be installed to allow servicing and removal of the water heater.
Note: Refer to the Gas Installations Standard AS/NZS 5601.1 for the correct method of sizing the gas supply
pipe to the water heater. The pipe size selection must take into account the high gas input of this water heater
as well as all of the other gas appliances in the premises.
Warning: Always isolate the water heater before pressure testing the gas supply system. Disconnect the
water heater after the isolation valve to prevent the risk of serious damage to the gas control. The Rheem
warranty does not cover damage of any nature resulting from failure to observe this precaution. Refer to rating
label for gas types and pressures.
CONNECTIONS – PLUMBING
on page 25 for further details.
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