ABOUT YOUR WATER HEATER
7
TIMER CONTROL
A timer can be installed in the electrical circuit to the water heater. The timer must be weatherproof if it is
installed outdoors. It may be desirable for the water heater not to operate between certain hours due to the
noise created by the system controls, such as during the night.
GOING ON HOLIDAYS
If you plan to be away from home for a few nights, we suggest you leave the water heater switched on. If you
plan to be away for a longer period, conserve energy by switching the isolating switch to the water heater off
(refer to “To Turn Off The Water Heater” on page 7).
TO TURN OFF THE WATER HEATER
If you plan to be away from home for only a few nights, we suggest you leave the water heater switched on.
If it is necessary to turn off the water heater:
Switch off the electrical supply at the isolating switch to the water heater.
Close the cold water isolation valve at the inlet to the water heater.
TO TURN ON THE WATER HEATER
Open the cold water isolation valve fully on the cold water line to the water heater.
Switch on the electrical supply at the isolating switch to the water heater.
The heat pump may take a few minutes to commence operating when the power supply is switched on. The
heat pump will only operate when the water in the storage tank requires heating and the heat pump
compressor is cool.
The booster heating unit will operate instead of the heat pump if the ambient air temperature is less than 3°C
to 5°C.
Note: The heat pump may not turn on after having just completed a heating cycle and more hot water is
drawn from the water heater. The heat pump will wait until the compressor has cooled down and the
conditions for start up are favourable in order to protect the compressor from damage. This may take up to
90 minutes from the last heating cycle.
HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?
Installation requirements are shown on page 20. The water heater must be installed by an authorised person
and the installation must comply with Standards AS/NZS 3500.4, AS/NZS 3000 and all local codes and
regulatory authority requirements. In New Zealand, the installation must conform with Clause G12 of the New
Zealand Building Code.
DOES THE WATER CHEMISTRY AFFECT THE WATER HEATER?
The water heater is suitable for most public water supplies, however some water chemistries may have
detrimental effects on the water heater and fittings. If you are in a known harsh water area you must read
page 9. If you are not sure, have your water chemistry checked against the conditions described on page 9.
HOW LONG WILL THE WATER HEATER LAST?
There are a number of factors that will affect the length of service the water heater will provide. These
include the water chemistry, the water pressure, temperature (inlet and outlet) and the water usage pattern.
However, your water heater is supported by a comprehensive warranty (refer to page 40).
ENVIRONMENT
At the end of the service life of the heat pump water heater and prior to the water heater being disposed of, a
person qualified to work with refrigerants must recover the refrigerant from within the sealed system. The
refrigerant must not be vented to atmosphere. Phone your nearest Rheem Service Department or Accredited
Service Agent to arrange for an inspection.
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