09/12 Class
SiUS041111
54
Operation Manual
12
To change the temperature setting
Press or
• 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
Press to raise the temperature and press to lower the
temperature.
Operating conditions
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 50-120btu/h (15-35W) of electricity even while it is not operating.
The outdoor unit consumes 3.4-34btu/h (1-10W) to have its electric components work even while it is not operating.
During standby electricity saving mode : about 3.4btu/h (1W)
The outdoor unit consumes about 120btu/h (35W) of power at the time of compressor preheating.
• 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.
MODE
COOL
HEAT
DRY
• Operation outside this humidity or temperature range may cause a safety device to disable the system.
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.
• 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.
If operation is continued out of this range
Operating conditions
The temperature setting is
not variable.
.
