Frost Wash Operation; The Process Of Frost Wash; Frost Wash (Auto Mode); Frost Wash Auto Start Conditions - Hitachi RAR-6NE2 Manual

FROST WASH OPERATION

The dust and dirt adhering to indoor heat exchanger which is the cause of the smell. They are washed away
by freezing and thawing of the heat exchanger.
Frost Wash function can work when the outdoor temperature is 1℃ to 43℃ and Indoor humidity is 30% to 70%.
There are two kinds of Frost Wash operation, auto mode and manual mode.
Operation such as
cooling operation
Stop
Running
" " lamp on the indoor unit lights up during Frost Wash operation.
If you want to stop Frost Wash operation, press the
When pressing the button such as cooling during Frost Wash operation, Frost Wash operation is discontinued
and start the cooling operation after about 3 minutes.
When Frost Wash is stopped during Frost Wash operation, the unit automatically restart Frost Wash operation
at the next operation stop.
In order to protect the product, Frost Wash function cannot be carried out again for about 60 minutes after
Frost Wash operation is completed.

Frost Wash (Auto mode)

Accumulated operating hours of the air conditioner
have exceeded 42 hours
Operation such as
Last Frost Wash
cooling operation
Running Stop
15 min
Fan operation Fan operation
in room in room
detect human detect human
in room or in room or
not in room not in room
When the outdoor temperature or indoor humidity are not suitable for Frost Wash operation, only fan operation
is carried out, Frost Wash operation will be done again at the next operation stop.
Sometimes the heat exchanger may not freeze depending on the conditions of the room.
When the ON timer reaches the set time during Frost Wash operation, it will stop the Frost Wash operation
and start the operation of setting mode.
If the interval of the Off to On timer is less than 2 hours, Frost Wash operation may not be completed. In
that case, it will restart Frost Wash operation at the next operation stop.
To be to normal Frost Wash (Auto mode) interval (42 hours), please stop operation of air conditioner and
operate Frost Wash (Auto mode) or Frost Wash (Manual mode).

The process of Frost Wash

Frost Wash start
About 8 min
About 20 min to 90 min.
※ It depends on the conditions of the room.
Fan operation
Freezing and thawing heat exchanger
The deflector remain open during fan operation, freezing, thawing.
(START/STOP) button twice.

Frost Wash auto start conditions

Accumulated operating hours of the air conditioner have exceeded 42 hours
Air conditioner is operated for more than 30 minutes and stops, such as cooling
operation
H uman sensor detects somebody is in room for 15 minutes and over
or not in room for 15 minutes
About 30 minutes or more
Operation such as
cooling operation
Running
15 min 15 min
Fan operation
in room
detect human
in room or
not in room
- 10 -
Frost Wash end
Auto Stop
4 times;
Frost Wash start
not in room
About 8 min About 20 min to 90 min.
Fan operation
detect human
in room or not in room
Stop
About 20 min to 90 min.
15 min
in room
Fan operation Frost Wash
Frost Wash end
Frost Wash Auto Stop
Frost Wash end
Auto Stop