Air Source Heat Pump Water Heater
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(3) Power outage
1) If an outage occurs when the unit is running, all tasks are stopped.
2) The wired controller has a power memory function.
3) If a malfunction occurs due to lightning or car radio, manually cut off
the power switch, and then power on the unit again.
(4) Power memory function
Every time before the power of the water heater or wired controller is cut off,
the wired controller automatically memorize the power switch status of the unit.
After the power is restored, the wired controller sends power-on/power-off
signals to the water heater according to the status memorized before the power
is cut off. This ensures that the unit can run according to the original status after
the power is restored.
15 Operation Notices in winter
(1) Before starting the unit which has not been used for a long period or in
quite low temperature in winter, energize it at least 8h ahead.
(2) Do not disconnect the power supply when the outdoor temperature is
quite low in winter, otherwise the automatic antifreeze protection will fail
to work. Under low ambient temperature, anti-freezing operation
function of the unit will conduct heating for anti-freezing before water
temperature of the water tank come near to freezing point, and it stops if
water temperature of the water tank rises to safe temperature. But the
auto anti-freezing operation function of the water tank is invalid for water
inlet/outlet pipe of the water tank. If ambient temperature of unit
installation location is below 0
℃
, pipeline anti-freezing tracing belt must
be installed and ensure the aforementioned belt is energized. If the
water tank is installed outdoor inevitably, shorten outdoor piping length
as much as possible, including refrigerant connection pipe and water
inlet pipe of the water tank, otherwise, heat dissipation loss of the unit is
big, power consumptive and water system is easy to be frozen. Special
attention shall be paid to thermal insulation blind spot on local valve
connection location and water pipe curve, strengthen the thermal
insulation, otherwise, local pipe will be frozen.