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Hitachi RAS-25QH1 Technische Information Seite 131

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7. Initial Setting Circuit (1C401)
@ When power is supplied, the micro computer reads the data in IC401
(E7PROM) and sets the preheating
activation value and the rating and maximum
speed of the compressor,
etc. to their initial values.
Micro computer
External ROM
1C401(E*PROM)
Fig. 7-1
8. Temporary Switch
Fig. 8-1
@ The temporary switch is used to operate the air conditioner temporarily when the wireless remote control is
lost or faulty.
®@ The air conditioner operates in the previous mode at the previously set temperature.
However, when the
power switch is set to OFF, it starts automatic operation.
- 138 -

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