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INSTALLATION
16
HOT WATER DELIVERY (WATER HEATING APPLICATIONS)
This water heater can deliver water at temperatures which can cause scalding.
It is necessary and we recommend that a temperature limiting device be fitted between the water heating system
and the hot water outlets in any ablution and public areas such as bathrooms, ensuites or public amenities, to
reduce the risk of scalding. The installing plumber may have a legal obligation to ensure the installation of this
water heater meets the delivery water temperature requirements of AS/NZS 3500.4 so that scalding water
temperatures are not delivered to a bathroom, ensuite, or other ablution or public area.
Where a temperature limiting device is installed adjacent to the hot water storage tanks, the cold water line to the
temperature limiting device can be branched off the cold water line either before or after the isolation valve,
pressure limiting valve and non return valve to the storage tanks. If an expansion control valve is required, it must
always be installed after the non return valve and be the last valve prior to the water heating system.
If a pressure limiting valve is installed on the cold water line to the water heating system and the cold water line to a
temperature limiting device branches off before this valve or from another cold water line in the premises, then a
pressure limiting valve of an equal pressure setting may be required prior to the temperature limiting device.
REDUCING HEAT LOSSES (WATER HEATING APPLICATIONS)
The cold water line to and the hot water line from the storage cylinder must be insulated in accordance with the
requirements of AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed.
Keep temperature settings down. Lower temperatures reduce heat losses and prolong storage cylinder life. Do not
set the controlling electronic thermostat above 70°C unless it is necessary. A time clock to control the electrical
supply can be used to switch off the water heater during hours or days when it is not in use.
HOOD CONVERSION
To convert a water heater from an outdoor configuration to an Indoor or High Wind Top configuration, proceed as
follows:
1. Remove the flue terminal (outdoor hood) from the water heater leaving the jacket top in place.
2. Place the stack adaptor over the flue collector and secure into place with self tapping screws.
3. Fit the draft diverter over the spigot and sit squarely on the stack adapter. Secure in place using self
tapping screws.
4. (Indoor installations only) Install and connect the secondary flue to the draft diverter in accordance with the
requirements of AS 5601.
NOTE: For High Wind Top conversion (147 models only) follow steps 1 to 3 and assess whether tie downs for the
High Wind Cowl are required.
109 Indoor Conversions