Hitachi RAC-25YH4, Service Manual, Page: 20 / 121

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HOW TO SET THE SLEEP TIMER
Set the current time at first if it is not set before (see the pages for setting the current time). Press the
(SLEEP) button and the display changes as shown below.
●
SLEEP
Mode Indication
Sleep Timer
1 hour 2 hours 3 hours 7 hours
Sleep timer off
Sleep Timer: The device will continue working for the desired number of
hours and then turn off.
Point the signal window of the remote controller toward the indoor unit, and
press the SLEEP button.
The timer information will be displayed on the remote controller. The TIMER
lamp lights with a beep from the indoor unit. When the sleep timer has
been set, the display indicates the turn-off time.
AM
Example: If you set 3 hours sleep time at
11:38 p.m., the turn-off time is 2:38 a.m.
Sleep
timer
Start
The device will be turned off by the sleep timer
and turned on by on-timer.
1
Set the ON-timer.
2
Press the (SLEEP) button and set the sleep timer.
AM
AM
For heating:
In this case, the device will turn off in
2 hours (at 1:38 a.m.) and turn on early
so that the preset temperature will be
almost reached at 6:00 next morning.
How to Cancel Reservation
Point the signal window of the remote controller toward the indoor unit, and press the (CANCEL)
button.
The (RESERVED) sign goes out with a beep and the (TIMER) lamp turns off on the indoor unit.
NOTE
If you set the sleep timer when the off-time or on/off-
timer has been set earlier, the sleep timer becomes
effective instead of the off - or on/off-timer set earlier.
RAS_25_35_AW_001-024 2003.12.31, 10:44 AM 18