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4
ABOUT YOUR WATER HEATER
WATER HEATER APPLICATION
This water heater is designed for use in a single family domestic dwelling for the
purpose of heating potable water. Its use in an application other than this may
shorten its life.
MAINS PRESSURE
The water heater is designed to operate at mains pressure by connecting directly
to the mains water supply. If the mains supply pressure in your area exceeds
that shown on page 22, a pressure limiting valve must be fitted. The supply
pressure should be greater than 350 kPa for true mains pressure operation to be
achieved.
MODEL TYPE
The Rheem
®
49 series water heater you have chosen can be installed indoor or
outdoor.
Rheem 49 series models are available with either a single heating unit or with
twin heating units (refer to “Single Element Model” on page 7 and “Twin Element
Model” on page 7).
Water is stored in a vitreous enamel lined steel cylinder and heated by the
electric immersion heating unit. The thermostat controls the temperature.
Automatic safety controls are fitted to the water heater to provide safe and
efficient operation.
The water heater has caps covering
brass plugs on one side of the tank. The
plugs and caps block off alternative
connection points and are not to be
tampered with or removed.
HOW HOT SHOULD THE WATER BE?
The water heater features an adjustable
thermostat, which allows you to choose
the most suitable temperature for your
hot water needs. Refer to “Temperature
Adjustment” on page 5.
To meet the requirements of the
National Plumbing Standard the
temperature of the stored water must
not be below 60°C.
minimum thermostat setting
and minimum recommended
stored water temperature.
top heating unit thermostat
setting on a twin element
model (not adjustable)
maximum thermostat setting
Rheem 49 series 250 to 400
models
maximum recommended
supply temperature to
bathrooms and ensuites
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