HOW AND WHY
Your room air conditioner provides the following
functions to make hot weather living more
• Cools and circulates room air.
• Lowers humidity by removing excess moisture.
• Filters out summertime dust, dirt, and some
The air conditioner performs these functions by
drawing room air through a filter which traps dust
and dirt particles. The air then passes over a
cooling coil which refrigerates the air and removes
excess moisture. The same air is then returned to
drier, and cleaner. Moisture
removed from the room air is carried to the outside
Your air conditioner is designed to be easy to
operate and to provide plenty of cooling power.
Aside from the regular fan motor and compressor
sounds coming from your air conditioner, you will
once in a while hear a pinging sound. This is the
result of moisture being picked up from the air in the
room and thrown against the air conditioner's fan.
This is normal and should not be cause for concern.
Also, do not be alarmed if you hear a slight hissing
or gurgling sound coming from your air conditioner
after it is off. These are normal coolant noises.
The modern high efficiency
compressor may have a high
pitched hum or pulsating
noise that cycles on and off.
-- Unit Vibration
The unit may vibrate
and make noise
because of poor wall
or window construction.
You may hear air
You may hear
droplets of water
hitting the condenser
causing a pinging or
CAPACITY AND RUNNING TIME
Proper unit size is important in deciding the desired
comfort for the area you want to cool. An undersized
unit will not have the capability to cool, leaving the
area uncomfortably warm. The proper size is
determined by the number of square feet in the area
to be cooled, indoor and outdoor temperature and
Whenever the heat or humidity load is above normal
the air conditioner must run longer and more often to
keep the desired temperature you have selected,
Under heavy heat load conditions the air conditioner
may need to run constantly to keep the temperature
At times using the MED FAN setting to circulate the
room air may make it comfortable even though the
air is not being cooled. This will decrease your cost
WATER DRAIN VALVE
When the outside temperature drops below 58°F
and the unit is set for heating, a drain valve opens
up to release water from the base pan. This is
normal and prevents water from freezing in the base
pan and interfering with the outdoor fan.