Page 8
User Manual
Normal Sounds
OPERATING INSTRUCTIONS
O
per
ating
Instruc
tions
RAC-WK18 Models
Gurgle/Hiss
Gurgling or hissing
noises may be heard due
to refrigerant flowing
through evaporator
during normal operation.
Sound of Rushing Air
In front of the unit, you
may hear the sound of
rushing air being moved
by the fan.
Vibration
Unit may vibrate and make
noise because of poor wall
or window construction or
incorrect installation.
Trickling Sound
Droplets of water
hitting condenser
during normal
operation may cause
a trickling sound.
High Pitched Sound
High efficiency compressors may
have a high pitched sound during
cooling cycle.
All the pictures in this manual are for illustrative purposes only. The actual appearance of the air
conditioner you purchased may vary slightly, but its operation and functions will be similar.
NOTICE
Air Conditioner Features (general)
This air conditioner is designed to be operated under the following conditions:
Cooling Operation
Outdoor temp.:
64 ~ 109°F / 18 ~ 43°C
Indoor temp.:
62 ~ 90°F / 17 ~ 32°C
To reduce the risk of fire, electrical shock, or injury to people or property, read the SAFETY
PRECAUTIONS before operating this appliance.
WARNING
• The relative humidity of room should be less than 80%. If the unit is used in a condition with a
relative humidity over 80%, there will be condensed water on the surface of the unit.
• Performance may be reduced outside of these operating temperatures.
NOTICE
