Hitachi RAS-18SX8 Manuel De Maintenance page 107

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.
Power
Operation stop key
Manual cleaning key
Product operation
Limit
switch
Operation lamp
Front panel
Vertical vane
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.
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Pre-filter cleaning system
Operation diagram 1 for filter cleaning
Initialization
ON
OFF
2'46'' 5''
Initialization
--> dust box
OFF
Dust box -->
initialization
Initialization ON
side
OFF
Open
The 30" after the cleaning has
Closed
Open 750 [1/min.] as its upper limit.
Closed
350[1/min.]
manuals search engine
operation control (3)
(initialization and automatic cleaning)
More than 10 cumulative
operating hours
2'46''
15 minutes
or more
– 140 –
Automatic cleaning
2'46'' 5'' 2'46''
350[1/min.]