ABOUT YOUR WATER HEATER
6
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, 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 booster heating unit.
Note:
The 310 HAV model heat pump water heater is recommended for connection to a minimum 16 hour
per day power supply.
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 up to 30 seconds 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, the heat pump
compressor is cool and power is available at the water heater. If the ambient air temperature is below the
minimum operating temperature of 5°C and the system calls for heating, the booster heating unit will operate
instead.
When the heat pump is operating, the system may switch to the booster heating unit if it detects that the
ambient air temperature is below the minimum operating temperature of 5°C. It may also switch back to heat
pump operation from the booster heating unit if it detects the ambient air temperature has moved back to
within the heat pump‟s operating temperature range.
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
20 minutes from the last heating cycle.
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 off the isolating switch to the water heater
(refer to
“To Turn Off The Water Heater”
on page 6).
PRECAUTIONS
Where damage to property can occur in the event of the water heater leaking, the water heater must be
installed in a safe tray. Construction, installation and draining of a safe tray must comply with AS/NZS 3500.4
and all local codes and regulatory authority requirements.
The water heater must be maintained in accordance with the Owner‟s Guide and Installation Instructions.
Refer to
“Regular Care”
on page 8 and to
“Anode Inspection and Replacement”
on page 10.
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.