Additional Notes On Operation; Tips On Saving Energy - Sharp AY-249E-T Operation Manual

ADDITIONAL NOTES ON OPERATION

OPERATING TEMPERATURE RANGE
upper limit
COOLING
lower limit
upper limit
HEATING
lower limit
D.B. = Dry-bulb W.B. = Wet-bulb
WHEN A POWER FAILURE OCCURS
This air conditioner has a memory function to store settings when a power failure occurs.
After power recovery, the unit will automatically re-start in the same settings which were active before
the power failure, except for timer settings.
If the timers were set before a power failure, they will need to be re-set after power recovery.
PREHEATING FUNCTION
In the HEAT operation, the indoor fan may not start for two to five minutes after the unit is turned on
to prevent cold air from blowing out of the unit.
DE-ICING FUNCTION
» When ice forms on the heat exchanger in the outdoor unit during the HEAT operation, the
automatic de-icer provides heat for about 5 to 10 minutes to remove the ice. During de-icing, the
inside and outside fans stop operating.
» After de-icing is completed, the unit automatically resumes operation in the HEAT mode.
HEATING EFFICIENCY
» The unit uses a heat pump to obtain heat from the outside air and releases it into the room. The
outside air temperature therefore greatly affects the heating efficiency.
» If the heating efficiency is reduced due to low outside temperatures, use an additional heater.
» It takes time to warm up and heat the entire room because of the forced air circulation system.

TIPS ON SAVING ENERGY

Below are some simple ways to save energy when you use your air conditioner.
SET THE CORRECT TEMPERATURE
» Setting the thermostat 1°C higher than the desired temperature in the COOL mode and 2°C lower
in the HEAT mode will save approximately 10 percent in power consumption.
» Setting the temperature lower than necessary during cooling operation will result in increased
power consumption.
BLOCK DIRECT SUNLIGHT AND PREVENT DRAFTS
» Blocking direct sunlight during cooling operation will reduce power consumption.
» Close the windows and doors during cooling opeation and heating operation .
SET PROPER AIR FLOW DIRECTION TO OBTAIN THE BEST AIR
CIRCULATION
KEEP FILTERS CLEAN TO ENSURE THE MOST EFFICIENT OPERATION
MAKE MOST OF THE TIMER OFF FUNCTION
DISCONNECT THE POWER CORD WHEN THE UNIT IS NOT USED FOR AN
EXTENDED PERIOD OF TIME
» The indoor unit still consumes a small amount of power when it is not operating.
INDOOR TEMP. OUTDOOR TEMP.
32˚C D.B.
23˚C W.B.
21˚C D.B.
15˚C W.B.
27˚C D.B.
-
20˚C D.B. -8.5˚C D.B.
- -9.5˚C W.B.
E-13
» The built-in protective
device may prevent the
43˚C D.B.
unit from operating when
-
used out of this range.
21˚C D.B.
» Condensation may form
-
on the air outlet if the
24˚C D.B.
unit operates continu-
18˚C W.B.
ously in the COOL or
DRY mode when humid-
ity is over 80 percent.