Hitachi RAK-15QEF Bedienungsanleitung Seite 9

FROST WASH OPERATION
It does not wash when outside temperature is less than about 1 degrees Celsius or
more than 43 degrees Celsius.
It does not wash when the humidity in the room is about 30% or less or about 70% or
more.
When "FROST WASH" is done by operating a remote controller, it does not wash
Frost wash operation
does not start
when the room temperature is less than about 10 degrees Celsius or more than about
32 degrees Celsius.
Within 60 minutes after the end of "FROST WASH", "FROST WASH" is not operated
for product protection.
Noise occurred
It is the sound that the internal machine is inflated and contracted by the temperature
during frost wash
change and the fin of the heat exchanger is frozen and thawed
operation
Repeat for 1 second
Because "FROST WASH" can not work when operating the "FROST WASH" with
remote controller.
(FROST WASH)
indicator blinks
Repeat for 4 seconds on and 1 second off for 15 seconds
Because it is not "FROST WASH" for a long time.
Operate the remote controller to operate "FROST WASH".
The following phenomena do not indicate unit failure.
During heating, the operation
indicator blinks and air blow stops
Hissing or fizzy sounds
Squeaking noise
Rustling noise
Clicking noise
on and 1 second off for 10 seconds
The air conditioner is operating
・
・ Outside air temperature, room temperature and room humidity are not
suitable for "FROST WASH"
・ It has not been over 60 minutes since the end of "FROST WASH"
<Operation start>
The unit is preparing to blow warm air. Please wait.
<In operation>
The outdoor unit is defrosting. Please wait.
Refrigerant flow noise in the pipe or valve sound generated when flow rate is
adjusted.
Noise generated when the unit expands or contracts due to temperature changes.
Noise generated with the indoor unit fan's rpm changing such as operation start
times.
Noise of the motorized valve when the unit is switched on.
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