INSTALLATION – WATER HEATER
14
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.
A secondary flue is not required. The water heater must not be installed indoors or in a confined space.
The water heater must be located to ensure that the location of the flue terminal complies with the requirements
of AS 5601 or AS/NZS 5601.1, as applicable under local regulations. As a guide the following requirements
are extracted from the Gas Installations Standard. The distances are measured along the wall behind the water
heater.
At least 500 mm between the top of the flue terminal
and the eaves.
At least 500 mm between the flue terminal and the edge
of any opening into the building, such as an openable
door or window, measured horizontally*.
At least 1000 mm between the top of the flue terminal
and the edge of any opening into the building, such as
an openable window, measured vertically.
At least 500 mm between the flue terminal and a return
wall or external corner, measured horizontally*.
At least 500 mm between the flue terminal and any
opening into a building, in the direction of the flue
discharge.
At least 500 mm between the flue terminal and a fence, wall or other obstruction, in the direction of the
flue discharge.
Note:
* If these horizontal distances cannot be achieved, AS/NZS 5601.1 states an equivalent horizontal
distance measured diagonally from the nearest discharge point of the flue terminal to the opening may be
deemed to comply. Check with the local regulator.
NO FROST PROTECTION
The water heater is
NOT
fitted with a frost protection system. If there is a risk of freezing, then it is necessary
to drain the water heater (refer to
“Draining the Water Heater”
on page 26). Damage caused by freezing is not
covered by the Rheem warranty (refer to
“Terms of the Rheem Warranty”
on page 27).
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 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.
REDUCING HEAT LOSSES
The cold water line to and hot water line from the water heater must be insulated in accordance with the
requirements of AS/NZS 3500.4 to. The insulation must be weatherproof and UV resistant if exposed. The
insulation must be fitted up to the connections on the underside of the water heater.
FLUE CLEARANCES
MECHANICAL INSTANTANEOUS
843 SERIES
500 MIN
500 MIN
500 MIN
SK7686 REV AD 6/15
