10
GAS CONNECTIONS
SIZING AND CONNECTING
Check the gas type label to make sure that the unit was built for the type of gas you will be
using, and that the gas inlet pressure is within the appropriate range. (Please refer to p.3.)
1.
Gas pressure below this specified range for the water heater and/or insufficient gas volume will
adversely affect performance.
2.
Inlet gas pressure must not exceed the above maximum values; gas pressure above the specified
range will cause dangerous operating conditions and damage to the unit.
3.
Until testing of the main gas line supply pressure is completed, ensure the gas line to the water
heater is disconnected to avoid any damage to the water heater.
Size the gas piping according to AS5601 installation code for the correct pipe sizing for the
water heater.
Always use approved connectors to connect the unit to the gas line. Always purge the gas
line of any debris before connecting to the water heater.
Install a manual gas shut-off valve between the water heater and the gas supply line.
The regulator is preset at the factory. It is computer controlled and is not to be adjusted by
any person other than a qualified Service Provider.
When the gas connections are completed, it is necessary to perform a gas leak test either
by applying soapy water to all gas fittings and observing for bubbles or by using a gas leak
detection device.
GAS INLET
SUPPLY
POWER CORD
GAS VALVE
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CAUTION
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1. Turn off the electric power to the
water heater and manual gas valve
located on the outside of the unit
before beginning gas connection.
2. Confirm the position of the gas inlet.
Do not connect water line to gas
inlet. It may be critical damaged.
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WARNING
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Conversion of this unit from natural gas to propane or propane to natural gas cannot be
done in the field. Contact your local retailer or distributor to get the correct unit for your
gas type.