SiUS041111
15/18/24 Class
Operation Manual
65
12
Press or .
To change the temperature setting
• The displayed items on the LCD will change whenever either one of the buttons is
pressed.
COOL operation
64-90˚F
(18-32˚C)
HEAT operation
50-86˚F
(10-30˚C)
AUTO operation
64-86˚F
(18-30˚C)
DRY or FAN operation
The temperature setting is
not variable.
Press to raise the temperature and press to lower the
temperature.
Recommended temperature setting
• For cooling: 78-82˚F (26-28˚C)
• For heating: 68-75˚F (20-24˚C)
Tips for saving energy
• Be careful not to cool (heat) the room too much.
Keeping the temperature setting at a moderate level helps save energy.
• Cover windows with a blind or a curtain.
Blocking sunlight and air from outdoors increases the cooling (heating) effect.
• Clogged air filters cause inefficient operation and waste energy. Clean them once in about every 2 weeks.
Notes on the operating conditions
• The air conditioner always consumes a small amount of electricity even while it is not operating.
• If you are not going to use the air conditioner for a long period, for example in spring or autumn, turn the breaker off.
• Use the air conditioner in the following conditions.
Operating conditions
MODE
COOL
HEAT
DRY
Outdoor temperature : 50-115˚F (10-46˚C)
Indoor temperature : 64-90˚F (18-32˚C)
Indoor humidity : 80% max.
Outdoor temperature : 5-75˚F (–15-24˚C)
Indoor temperature : 50-86˚F (10-30˚C)
Outdoor temperature : 50-115˚F (10-46˚C)
Indoor temperature : 64-90˚F (18-32˚C)
Indoor humidity : 80% max.
Operating conditions
If operation is continued out of this range
• A safety device may work to stop the operation.
• Condensation may occur on the indoor unit and drip.
• A safety device may work to stop the operation.
• A safety device may work to stop the operation.
• Condensation may occur on the indoor unit and drip.
• Operation outside this humidity or temperature range may cause a safety device to disable the system.
