About Your Water Heater - Rheem Integrity 20 Owner's Manual And Installation Instructions

ABOUT YOUR WATER HEATER

MODEL TYPE
Congratulations for choosing a Rheem integrity electronic instantaneous gas water heater.
The model you have chosen is for outdoor installation only. The water heater operates
automatically. When a hot tap is opened, the gas burners ignite to provide immediate
heating of the water. The gas burners extinguish when the hot tap is closed.
HOW HOT SHOULD THE WATER BE?
This type of water heater operates on the principle
of heating water as it passes through the water
heater. The outlet temperature is selected by the
user at the controller (if installed). If a controller is
not installed, the water heater defaults to the preset
outlet temperature. The temperature is then kept
constant by the automatic adjustment of the burner
input and water flow rate (refer to Temperature
Control on pages 7 to 13).
Note: The preset outlet temperature setting of
this water heater cannot be adjusted by the
householder. This setting can only be adjusted
by Southcorp Water Heaters Australia or their
Accredited Service Agent.
HOTTER WATER INCREASES THE RISK
OF SCALD INJURY
We recommend, and it may also be required by
regulations, that an approved temperature limiting
device be fitted into the hot water piping to the
bathroom and ensuite. This will keep the water
temperature below 50°C at the bathroom and
ensuite. The risk of scald injury will be reduced and, if a Kitchen controller is installed, still
allow hotter water to the kitchen and laundry.
TO TURN OFF THE WATER HEATER
If it is necessary to turn off the water heater, such as when going on vacation:
Turn off the water heater using the "on/off" button on the controller/s (if fitted).
Close the gas and water isolation valves at the inlets to the water heater.
If the water heater does not have frost protection, switch off the electrical supply at
the power outlet to the water heater.
Note: The electrical supply should not be switched off for models fitted with frost protection,
unless the water heater is drained. Otherwise damage could result from freezing conditions
(refer to Frost Protection and Draining the Water Heater on page 6 ).
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