INSTALLATION – WATER HEATER
46
underside, pointing toward the ground. 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 screws each at the top
and bottom of the unit (refer to page 53 for mounting hole positions). Use either the screws
provided or other mounting screws suitable for the application. The fixings 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.
Alternatively the water heater can be recessed into a wall (refer to “Recess Installation” on
page 47).
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 300 mm between the top of the flue
terminal and the eaves.
•
At least 300 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 1500 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 300 mm between the flue terminal and a
return wall or external corner, measured
horizontally*.
•
At least 1500 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.
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 (L28A) is
available for such an installation. Refer to the installation instructions which accompany the pipe
cover kit.
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