36
COMMISSIONING
TO FILL AND TURN ON THE WATER HEATER
The gas pilot or burner must not be lit until the water heater is filled with
water.
Open all of
the hot water taps in the house (don‟t forget the shower).
Open the cold water isolation valve fully to the water heater.
Air will be forced out of the taps.
Close each tap as water flows freely from it.
Check the pipe work for leaks.
Open the gas isolation valve fully.
Check the gas pipe work for leaks.
Test the gas supply pressure to the water heater.
Refer to
“Gas Supply Pressure Testing”
on page 37.
Test the burner gas pressure and adjust if required.
Refer to
“Burner Gas Pressure Testing and Adjustment”
on page 38.
Light the water heater.
Refer to
“Lighting the Water Heater”
on page 40.
Test the water heater‟s burner operation.
Refer to
“Test the Water Heater after Installation”
on page 42.
Replace the access cover.
Adjust the adjustable water mixing valve if required.
Refer to
“Adjustable Water Mixing Valve”
on page 7.
Warning:
Upon completion of the installation and commissioning of the
water heater, leave this guide with the householder or responsible officer.
DO NOT
leave this guide inside of the cover of the water heater, as it may
interfere with the safe operation of the water heater or ignite when the water
heater is turned on.
Explain to the householder or a responsible officer the functions and operation
of the water heater.
