Справочник Пользователя для Hitachi RAS-25YHA / RAC-25YHA RAS-35YHA / RAC-35YHA INDOOR UNIT

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FILTER LAMP (Green)
When the device is operated for a total of about 200 

hours,  the  FILTER  lamp  lights  indicates  that  it  is 
time  to  clean  the  filter.The  lamp  goes  out  when  the   
“

  (AUTO  SWING)”  button  is  pressed  while  the 

operation is stopped.

OPERATION LAMP (Yellow)
This lamp lights during operation.
The OPERATION LAMP flashes in the following cases 

during heating.

(1) DURING PREHEATING
 

For about 2-3 minutes after starting up.

(2) DURING DEFROSTING
 

Defrosting will be performed about once an hour when 
frost forms on the heat exchanger of the outdoor unit, 
for 5-10 minutes each time.

TEMPORARY SWITCH
  Use this switch to start and stop when the remote controller does not work.

This temporary operation will be at the most recent setting made. (The unit 
will immediately go into automatic operation once power is switched on.

Turn off the circuit breaker or pull out the power plug if the 
unit is not be operated for a long period.

 If the power stays on and the unit is not operated, power is slightly consumed in the control circuit. 

  The power is saved by turning off the power switch (or the circuit breaker when the power is supplied from 

the outdoor unit).

Attaching the air cleansing and deodorizing filters (Accessories) to the filter frame.
• Attach the air cleansing and deodorizing filters to the frame 

by gently compress its both sides and release after insertion 
into filter frame.

• The cooling capacity is slightly weakened and the cooling speed 

becomes slower when the air cleansing and deodorizing filters 
are used.

• Air cleansing and deodorizing filters can be used for about 1 year. 

When you want to renew it, please ask your sales agent.

Attaching the negative ion stick to the filter frame
• Put the negative ion stick to the loer hooks and install it so as 

to push up the upper hooks.

Frame

Upper hook

Negative
ion stick

Lower hook

TIMER LAMP  (Orange)
This lamp lights when the timer is working.