SLEEP TIMER OPERATION

Unlike other timer functions, the SLEEP timer is used to set the length of time until air conditioner operation is stopped.

To Use the SLEEP Timer

While the air conditioner is operating or stopped, press the SLEEP button (Fig. 6 &).

The indoor unit’s OPERATION Indicator Lamp (red) (Fig 3. 5) lights and the TIMER Indicator Lamp (green) (Fig 3. 6) light.

To Cancel the Timer:

Use the TIMER button to select “TIMER

RESET”.

The air conditioner will return to normal operation.

To Change the Timer Setting

Press the SLEEP button (Fig 6. &) once again and set the time using the SET TIME buttons (Fig 6. ().

Set the time while the Timer Mode Display is flashing (the flashing will continue about five seconds).

button: Press to advance the time. button: Press to reverse the time.

About five seconds later, the entire display will reappear.

To Stop the Air Conditioner During Timer Operation:

Press the START/STOP button.

About the SLEEP timer

To prevent excessive cooling during sleep, the SLEEP timer function automatically modifies the thermostat setting in accor- dance with the time setting. When the set time has elapsed, the air conditioner completely stops.

During Cooling/Dry operation:

 

When the SLEEP timer is set, the thermostat setting is auto-

SLEEP timer setting

matically raised 2°F every sixty minutes. When the thermo-

 

stat has been raised a total of 4°F, the thermostat setting at

 

that time is maintained until the set time has elapsed, at

 

which time the air conditioner automatically turns off.

 

Set time

1 hour

2°F

4°F

En-10

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Fujitsu AOU9C1, ASU9C1, ASU12C1, AOU12C1 manual Sleep Timer Operation, About the Sleep timer, During Cooling/Dry operation