Specifications

INSTALLATION – WATER HEATER
16
This water heater must be installed vertically upright with the water, gas and power connections on the
underside, pointing toward the floor. The back of the water heater can be either against a wall or supported
by a frame.
Note: The water heater must be well secured to the wall or frame using two fasteners each at the top and
bottom of the unit (refer to page 22 for mounting hole positions and weight of the water heater). Use the
screws provided only if they are suitable for the wall or frame type. Otherwise select and use alternative
fasteners suitable for the application. The fasteners must be capable of bearing the full weight of the water
heater so it may not work loose nor impose any load on the gas and water pipe work connected to the water
heater. Refer to the fastener manufacturer‟s information and recommendations for the type of fastener to use
for the wall or frame type and load bearing requirements.
For a single water heater installation, refer to the typical installation diagram on page 23.
For a multiple water heater installation, refer to “Multiple Installations” on page 44 and the typical installation
diagram on page 45.
The water heater must not be installed in an area with a corrosive atmosphere where chemicals are stored or
where aerosol propellants are released. Remember the air may be safe to breathe, but when it goes through
a flame, chemical changes take place which may attack the water heater.
VENTILATION
This water heater is to be installed with a Rheem coaxial flue system. The kit enables a room sealed
installation, drawing air for combustion from outside of the building.
The ventilation of a room or an enclosure such as a cupboard, where the water heater is installed must
comply with the requirements of AS 5601 or AS/NZS 5601.1, as applicable under local regulations.
SECONDARY FLUE
A secondary flue must be installed with an indoor water heater to discharge combustion products to outside
the building. The water heater MUST ONLY be installed with a certified Rheem coaxial flue system.
Where more than one water heater is installed, each water heater must be individually flued using a certified
Rheem coaxial flue system. A common flue system MUST NOT be used.
Refer to “Flueing” on page 26 for details on the flue requirements and installation details.
SAFE TRAY
Where damage to property can occur in the event of the water heater leaking, the water heater must be
installed over a safe tray. Construction, installation and draining of a safe tray must comply with
AS/NZS 3500.4 and all local codes and regulatory authority requirements.
PIPE COVER
The pipe work to the water heater can be housed within a pipe cover. A pipe cover kit (PN 299848) is
available for such an installation. Refer to the installation instructions which accompany the pipe cover kit.
FROST PROTECTION
The water heater has a frost protection system. The frost protection system will protect the water heater from
damage, by preventing ice forming in the waterways of the water heater, in the event of freezing conditions
occurring.
The frost protection system will be rendered inoperable if electrical power is not available at the water heater.
Damage to the water heater caused by freezing of the pipe work to or from the water heater is not covered
under the Rheem warranty. Refer to AS/NZS 3500.4 for precautions to be taken for installations in frost
prone areas. The water heater is not suitable for installation in areas where the ambient temperature falls
below -20°C (including wind chill factor).
The cold water line to the water heater must be insulated with suitable thickness insulation if freezing
conditions are likely to occur. The insulation must be fitted to the underside of the water heater and be
weatherproof and UV resistant if exposed.