Hitachi RAK-18QXD Service Manual page 46

Reversing valve defrosting
Over defrosting inhibit period
Fan speed
set to "Hi"
Start/Stop button
Defrost signal
Preheating released
Preheating judgment
Hi
Med
Indoor fan
Lo
Ultra-Lo
Hi or Lo
Outdoor fan
Operation lamp
Reversing valve
Reverse cycle period
Deceleration
period
20' MAX.
15' or more
Auto fresh defrosting
Stop
Preheating released
Preheating
Hi or Lo
Reverse cycle period
3' MAX.
20' MAX.
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