ABOUT YOUR WATER HEATER
11
HOW HOT SHOULD THE WATER BE?
The system controls (compressor, evaporator and fan) will operate
until a water temperature of approximately 60°C is reached. If the
ambient air temperature is outside of the heat pump’s operating
range, the water temperature is boosted automatically to 60°C by the
electric heating unit, if heating is required.
To meet the requirements of the National Plumbing Standard the
temperature of the stored water must not be below 60°C.
HOTTER WATER INCREASES THE RISK OF SCALD INJURY
This water heater can deliver hot water at temperatures up to 60°C,
sufficiently hot to cause severe scalding. Water at this temperature
may have been plumbed to fixtures where water hotter than 50°C is
allowed, such as the kitchen and laundry.
Check the water temperature before use, such as when entering a
shower or filling a bath or basin, to ensure it is suitable for the
application and will not cause scald injury.
We recommend and it may also be required by regulations that an approved temperature limiting device be
fitted into the hot water pipe work to the bathroom and ensuite when this water heater is installed. This will
keep the water temperature below 50°C at the bathroom and ensuite. The risk of scald injury will be reduced
and still allow hotter water to the kitchen and laundry.
TEMPERATURE ADJUSTMENT
The thermostat and sensors controlling the heat pump and the electric heating unit are factory set and not
adjustable.
DISPLAY PANEL AND USER CONTROLLED FUNCTIONS
The water heater has a display panel to indicate the status of the water heater. The Display Panel also allows
the user to select certain settings, such as Timer Control, Vacation Mode and Manual Electric Heating. Refer
to
on page 14.
TIMER CONTROL
A timer function on the Display Panel allows the hours of operation of the water heater to be set. Refer to
on page 21.
It may be desirable for the water heater not to operate between certain hours, such as during the peak period
when connected to a Time of Use electricity supply due to a more expensive tariff rate applying.
A timer will affect the operating times of both the heat pump circuit and the electric heating unit.
Notes
•
The 270HAV model water heater is recommended for connection to either a 24 hour continuous tariff or
an extended off-peak (minimum 16 hours per day
– replacement model and climate dependant) power
supply.
•
If there is a risk of freezing conditions, the electrical supply to the water heater should not be switched off,
otherwise damage could result (refer to
on page 10).
PRECAUTIONS
The water heater must be maintained in accordance with the Owner’s Guide and Installation Instructions. Refer
to
on page 29 and to
“Anode Inspection and Replacement”
on page 31.
If this water heater is to be used where an uninterrupted hot water supply is necessary for your application or
business you should ensure that you have back-up redundancy within the hot water system design. This should
ensure the continuity of hot water supply in the event that this water heater were to become inoperable for any
reason. We recommend you seek advice from your plumber or specifier about your needs and building back-
up redundancy into your hot water supply system.
maximum temperature from
heat pump operation and
electric heating unit
operation;
minimum recommended
stored water temperature
maximum recommended
supply temperature to
bathrooms and ensuites
