Operating instructions
ABOUT YOUR WATER HEATER 
10 
HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY? 
Installation requirements are shown on pages 35 to 45. The water heater must be installed: 
•  by a qualified person, and 
•  in accordance with the installation instructions, and 
•  in compliance with Standards AS/NZS 3500.4, AS 5601 or AS/NZS 5601.1, as applicable under local 
regulations, and all local codes and regulatory authority requirements. 
In New Zealand the installation must also conform with NZS 5261, as applicable under local regulations, and 
the New Zealand Building Code. 
 Warning: Temperature controllers must not be fitted to this water heater (884 series) if it is installed as 
an in-series gas booster with a solar water heater or if a Water Star water heater is installed, because water 
at a temperature much higher than the controller setting can be delivered. If a solar or Water Star water 
heater is installed to an existing water heater installation, then all controllers must be disconnected and 
removed. 
The pipe work between the solar storage tank (if one is installed) and the in-series gas booster has a 
minimum recommended pipe size of DN20, MUST BE
 of copper and be fully insulated in accordance with 
the requirements of AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed. The 
insulation must be fitted up to the connections on both the solar storage tank and the in-series gas booster. 
VICTORIAN CUSTOMERS 
Notice to Victorian Customers from the Victorian Plumbing Industry Commission. This water heater must be 
installed by a licensed person as required by the Victorian Building Act 1993. 
Only a licensed person will give you a Compliance Certificate, showing that the work complies with all the 
relevant Standards. Only a licensed person will have insurance protecting their workmanship for 6 years. 
Make sure you use a licensed person to install this water heater and ask for your Compliance Certificate. 
DOES THE WATER CHEMISTRY AFFECT THE WATER HEATER? 
The water heater is suitable for most public water supplies, however some water chemistries may have 
detrimental effects on the water heater, its components and fittings. Refer to “Water Supplies” on page 31. 
If you are in a known harsh water area or you are not sure of your water chemistry, have your water checked 
against the conditions described on page 31. 
HOW LONG WILL THE WATER HEATER LAST? 
The water heater is supported by a manufacturer’s warranty (refer to page 71). There are a number of 
factors that will affect the length of service the water heater will provide. These include but are not limited to 
the water chemistry, the water pressure, the water temperature (inlet and outlet) and the water usage 
pattern. Refer to “Precautions” on page 6. 










