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BURNER GAS PRESSURE
It is necessary to check the burner gas pressure at both the minimum and maximum operational settings. To
check and if necessary adjust the operational gas pressures, the electrical supply to the in-series gas booster
must be switched on, the burners ignited and hot water must be flowing from a hot tap.
Warning: The removal of the front cover will expose 240 volt wiring. Take care not to touch wiring terminals.
Refer to the "Minimum Test Point Gas Pressure" and "Maximum Test Point Gas Pressure" sections of the
Installation Instructions and Owner's Guide supplied with the continuous flow in-series gas booster.
PRESET OUTLET TEMPERATURE SETTING
Note: AS 3498 requires that a water heater provides the means to inhibit the growth of Legionella bacteria in
potable water. If this water heater is installed with an continuous flow in-series gas booster, then this
requirement of AS 3498 can be satisfied provided the booster is energised, its preset outlet temperature setting
is 70°C or higher and a remote temperature controller or an EZiSET kit is not used.
If this water heater is installed with an in-series storage booster, then this requirement of AS 3498 can be
satisfied provided the storage booster is energised and its thermostat setting is 60°C or higher.
It will be necessary to check and if required to adjust the preset outlet temperature setting of the continuous
flow water heater or the thermostat setting of a storage water heater when it is installed as an in-series booster
to a solar water heater or if it is an existing water heater and a solar water heater is then installed.
Refer to the Owner's Guide and Installation Instructions supplied with the continuous flow in-series gas booster
for the procedure to check and adjust the preset outlet temperature if required.
Refer to the Owner's Guide and Installation Instructions supplied with the in-series storage booster for the
procedure to check and adjust the thermostat setting if required.
Note: Consideration must be given to the delivery temperature to any ablution and public areas such as a
bathroom, ensuite or public amenities. Refer to
Temperature Zones Using A Temperature Limiting Device"
TO TURN OFF THE WATER HEATER
If it is necessary to turn off the water heater on completion of the installation, such as on a building site or
where the premises is vacant, then:
Switch off the electrical supply to the solar storage tank and in-series gas booster at the power outlets
(refer to note below).
Close the gas isolation valve at the inlet to the water heater.
Close the cold water isolation valve at the inlet to the water heater.
Drain the in-series gas booster if there is a risk of freezing conditions occurring (refer to
Water Heater"
on page 60).
Notes:
The frost protection system of the in-series gas booster will be rendered inoperable if electrical power is
not available at the gas booster. Damage caused by freezing due to the unavailability of power at the in-
series gas booster is not covered by the Rheem warranty.
If the power has been switched off to the in-series gas booster and there is a risk of freezing, then it is
necessary to drain the gas booster (refer to
"Terms of the Rheem Warranty"
Refer to
"Hot Water Delivery"
on page 26 and to the schematics of
on page 26.
"Draining the Water Heater"
on page 62.
59
COMMISSIONING
"Draining The
on page 60).
"Two
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