Specifications

ABOUT YOUR WATER HEATER
5
FREEZE PROTECTION
The water heater has a freeze protection system. The freeze protection system will protect the water heater
from damage, by preventing ice forming in the waterways of the water heater, in the event of freezing
conditions occurring.
If the ambient air temperature falls below 4°C and the heat pump module is not operating, the system will
operate the circulator periodically. During this freeze protection cycle, the circulator will operate for three (3)
minutes and then rest for fifteen (15) minutes, before the cycle is recommenced. Water is circulated from the
storage tank through the heat pump circuit, to prevent freezing in the connecting pipe work and heat pump
module.
Warning: In areas where the ambient air temperature may fall below 0°C, power must be available to the
water heater at all times to prevent freezing in the heat pump circuit.
The system must be installed with the heat pump circuit hot and cold pipes fully insulated with closed cell
polymer insulation with a minimum thickness of 13 mm. Thicker insulation may be required to comply with
the requirements of AS/NZS 3500.4. The water heater has NO WARRANTY for freeze damage if the heat
pump circuit hot and cold pipes are not suitably insulated or if power is unavailable at the water heater.
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.
A minimum water supply pressure of 200 kPa is required to enable the heat pump circulator and heat pump
system to operate effectively.
HOW HOT SHOULD THE WATER BE?
The system controls (compressor, evaporator and fan) will operate
until a water temperature of 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
booster 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 water at temperatures which can
cause scalding. 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 thermostats controlling the heat pump and the booster heating unit are factory set and not adjustable.
typical maximum
temperature from heat
pump operation,
booster temperature
setting,
minimum recommended
stored water temperature
maximum recommended
supply temperature to
bathrooms and ensuites