INSTALLATION – WATER HEATER
50
WATER HEATER LOCATION
The water heater is suitable for outdoor installation only and should be installed close to the most frequently
used outlet and its position chosen with safety and service in mind. If this water heater is part of a solar water
heater system, it should also be installed close to the solar storage tank. Make sure people (particularly
children) will not touch the flue terminal. The flue terminal and air inlet must be clear of obstructions and
shrubbery.
Clearance must be allowed for servicing of the water heater. The water
heater must be accessible without the use of a ladder or scaffold. Make sure
the entire front panel can be removed for service. You must be able to read
the information on the rating plate. Remember you may have to take the
entire water heater out later for servicing.
This water heater must be installed vertically upright with the water, gas and
power connections on the 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 fasteners each at the top and
bottom of the unit (refer to page 57 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.
Alternatively the water heater can be recessed into a wall (refer to “Recess Installation” on page 51).
For a single water heater installation, refer to the typical installation diagram on page 60.
For a dual water heater installation using the EZ Link system, refer to “EZ Link System Dual Installation” on
page 64 and the typical installation diagram on page 68.
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/NZS 5601.1. 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 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 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.