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Purging the gas supply line before connection
Before connecting the gas supply inlet piping to the water
heater it must be purged of foreign matter. Before purging
the gas supply line conrm that the electrical supply to the
water heater is turned off, there is adequate ventilation
available and that no ignition sources are present. Follow the
purging instructions detailed in AS5601 and then close the
gas isolation valve.
warning
After purging the gas supply line allow sufficient time for
escaped gas to disperse before operating the water heater
or any potential ignition source.
Measuring inlet gas pressure and testing gas leakage
The inlet gas pressure to the water heater should be checked
and leak tested before operating for the rst time. This is
only to be done by a licensed professional.
1. Shut off the manual gas valve on the supply gas line.
2. Open a faucet. The water heater should turn on and the
gas in the gas pipe line should purge. Leave the faucet on
to keep the water heater running until it shuts down due
to lack of gas supply. Then shut the faucet off.
3. Remove the screw for the pressure port located on the
gas inlet of the water heater shown in the diagram below.
4. Connect the manometer to the pressure port.
5. Re-open the manual gas valve. Check to see that there
are no gas leaks.
6. Open some of the xtures that use the highest ow rate
to turn on the water heater.
7. When the water heater is on at maximum burn, the inlet
gas pressure must be within the appropriate range
(please refer to page 5).
This water heater and its individual shut-off valve must be
isolated from the gas supply piping system by unplugging
the water heater and turning off the main gas valve during
any pressure testing of the gas supply piping system at test
pressures above 3kPa.
10 gas connection Kelvinator Gas Continuous Flow hot water system
Gas connection
caution
1. Turn off the electrical supply to the water heater and
manual gas valve located on the outside of the water
heater before beginning gas connection.
2. Conrm the position of the gas inlet. Do not connect any
water lines to the gas inlet. It may be critically damaged.
power cord
gas supply inlet
gas valve
Sizing and connection
This water heater requires a 3/4" or 20mm gas supply line
size to operate correctly, check the gas supply pipe size is
suitable before installation.
Check the gas type label to make sure that the water heater
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 page 5)
1. Gas pressure below this specied range for the water
heater and/or insufcient gas volume will adversely affect
performance.
2. Inlet gas pressure must not exceed the above maximum
values; gas pressure above the specied range will cause
dangerous operating conditions and damage to the
water heater.
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.
caution
Conversion of this water heater from natural gas to
propane or propane to natural gas cannot be done in the
eld. Contact your local retailer or distributor to get the
correct water heater for your gas type.
• 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 water
heater to the gas line. The service technician should
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 qualied 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 ttings and observing for bubbles or by using a
gas leak detection device.
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