Hitachi RAC-18EH2 Service Manual page 45

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Cooling Sleep Operation
Notes:
(1)
The sleep operation starts when the sleep key is pressed.
(2)
When the sleep key is set, the maximum compressor speed is limited, and the indoor fan is set to "sleep Lo".
(3)
30 minutes after the sleep key is set, the sleep shift of temperature starts, and upper shift is made at least 6 times. If 25˚C
is not reached after 6 shifts, shifts repeat unit 25˚C is reached.
(4)
The sleep shift upper value of set temperature is 28˚C.
(5)
After 6 hours, a shift down to the initial set temperature is made at a rate of 0.33˚C/5 min.
(6)
If the operation mode is changed during sleep operation, the set temperature is cleared, and shift starts from the point when
switching is made.
(7)
The indoor fan speed does not change even when the fan speed mode is changed.
(8)
When operation is stopped during sleep operation, the set temperature when stopped, as well as the time, continue to be
counted.
(9)
If the set lime is changed during sleep operation, all data including set temperature, time, etc. is cleared and restarted.
(10) If sleep operation is canceled by the cancel key or sleep key, all data is cleared.
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