Rheem 260 Litre - Manual (Page 31)

31
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 building (don’t forget the showers) and
supply cock(s) and valve(s) in the system.
•
Open the isolation valves fully on the cold and hot water branches to the
water heater(s) installed in a bank.
•
Open the cold water isolation valve on the cold water line to the water
heater(s).
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(s) fully.
•
Check the gas pipe work for leaks.
•
Light the water heater(s) (refer to “Lighting the Water Heater” on page 33).
•
Check the pipe work again for leaks, when the system has reached its
working temperature.
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.
GAS INLET PRESSURE
IMPORTANT – CHECK the gas supply pressure at the inlet to the water heater
with the water heater and all other gas burning appliances in the premises
operating (burners alight). The minimum gas supply pressure is:
Natural Gas 1.13 kPa Propane 2.75 kPa
Town / TLP 0.75 kPa Butane 2.75 kPa
If this minimum cannot be achieved, it may indicate the meter or the gas line to
the water heater is undersized. It is important to ensure that an adequate gas
supply pressure is available to the water heater when other gas burning
appliances, on the same gas supply, are operating.