Operating instructions
INSTALLATION – WATER HEATER 
36 
WATER HEATER LOCATION 
The water heater 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. The 
water heater must be secured to the wall or frame using 
either the screws provided or other mounting screws 
suitable for the application, two each at the top and bottom 
of the unit (refer to page 43 for mounting hole positions). 
For a single water heater installation, refer to the typical 
installation diagram on page 45. 
For a dual water heater installation using the Ez-Link 
system, refer to “Ez-Link System Dual Installation” on 
page 49 and the typical installation diagram on page 52. 
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 or NZS 5261, 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. 










