Service manual

17
(5) Dew prevention
During COOL or DRY operation at vane Angle 4 or 5 when the compressor cumulative operation time exceeds 1 hour,
the vane angle automatically changes to Angle 1 for dew prevention.
(6) SWING MODE ( )
By pressing the SWING button ( ) the horizontal vane swings vertically. The remote controller displays “ ”. SWING
mode is cancelled when the SWING button or VANE CONTROL button ( ) is pressed or the mode is changed to other
mode.
(7) Cold air prevention in HEAT operation
When any of the following conditions occurs in HEAT operation, the horizontal vane angle changes to Angle 1
automatically to prevent cold air blowing on users.
① Compressor is not operating.
➁ Defrosting is performed.
➂ Indoor coil thermistor RT12 reads 24: or below.
➃ Indoor coil thermistor RT12 temperature is raising from 24°C or below, but it does not exceed 28:.
8-7. SLEEP MODE ()
• When the SLEEP button ( ) is pressed, the indoor fan speed drops and the air flow sound from the indoor
unit is decreased.
• The indications of the remote controller are “ ” and “ ”.
• When the FAN SPEED CONTROL button ( ) or the SLEEP button ( ) or mode change button is pressed during
the SLEEP mode, the SLEEP mode is released.
Released
Cold Air Prevention
24: 28:
Angle 1
Horizontal vane
Set position
Indoor coil thermistor RT12 temperature
NOTE:At initial in hysteresis this control works.
8-8. TIMER OPERATION
1. How to set the timer
(1) Press OPERATE/STOP (ON/OFF) button to start the air conditioner.
(2) Check that the current time is set correctly.
NOTE : Timer operation will not work without setting the current time. Initially “AM0:00” blinks at the current time display of
TIME MONITOR, so set the current time correctly with CLOCK SET button.
(3) Press TIMER CONTROL button to select the operation.
“ ” button... AUTO START operation (ON timer)
“ ” button... AUTO STOP operation (OFF timer)
(4) Press HR. and MIN. button to set the timer. Time setting is 10-minute units.
HR. and MIN. button will work when “ ” or “ ” mark is flashing.
These marks disappear in 1 minute.
After setting the ON timer, check that OPERATION INDICATOR lamp of the indoor unit lights.
NOTE1 : Be sure to place the remote controller at the position where its signal can reach the air conditioner even during
TIMER operation, or the set time may deviate within the range of about 10 minutes.
NOTE2 : Reset the timer in the following cases, or the set time may deviate and other malfunctions may occur.
• A power failure occurs.
•The circuit breaker functions.
2. Cancel
TIME setting can be cancelled with the TIMER CONTROL buttons. (“ ” or “ ”)
To cancel the ON timer, press the “ ” button.
To cancel the OFF timer, press the “ ” button.
TIME is cancelled and the display of set time disappears.