Hitachi RAS-10XH1 Service Manual page 56

Pre-filter cleaning system
Forcible cleaning
(1) If the air-conditioner has run for more than 24 consecutive [hours], stop it and clean it forcibly.
After the cleaning is over, reset it.
Manual cleaning
(1) This operation aims to make the product ready for use after having left the air-conditioner unused
for a long time.
(2) Pressing the MANUAL CLEANING button on the remote control unit will make one go and return.
(3) Continuous operation is impossible. (Allow for an interval of 5 [minutes].)
(4) While the air-conditioner is running, it will not accept "manual cleaning." (The cleaning lamp will blink.)
・During a continuous run with an interval of up to [eeprom] (5 minutes), the product will not accept
signals from the remote control unit.
・To protect the machine, avoid continuous manual cleaning. Allow for an interval of more than 5 minutes
between operations.
Indicate the above in the operation manual.
Operation diagram 1 for filter cleaning
ON
Power
OFF
Operation stop key
Manual cleaning key
Product operation
Initialization
--> dust box
OFF
Dust box -->
initialization
ON
Limit Initialization
switch side
OFF
Operation lamp
Open
Front panel
Closed
Open
Vertical vane
Closed
Indoor unit
1. While the cleaning is inhibited (with the remote control unit double-pressed), all the cleaning operations are inhibited.
2. When 40℃ ＜ room temperature or 0 ℃ ＞ room temperature, all the cleaning operations are inhibited.
Initialization
2' 46'' 5'' 2'46''
The 30" after the cleaning has
750 [1/min.] as its upper limit.
350[1/min.]
– 73 –
operation control (3)
(initialization and automatic cleaning)
More than 10 cumulative
operating hours
15 minutes
or more
Automatic cleaning
2' 46'' 5'' 2' 46''
350[1/min.]