– 10 –
REGULAR INSPECTION
PLEASE CHECK THE FOLLOWING POINTS
BY QUALIFIED SERVICE PERSONNEL
EITHER EVERY HALF YEARLY OR YEARLY.
CONTACT YOUR SALES AGENT OR SERVICE
SHOP.
1
2
Is the earth line disconnected
or broken?
Is the mounting frame seriously
affected by rust and is the
outdoor unit tilted or unstable?
Notes
● In quiet or stop operation, the
following phenomena may
occassionally occur, but they are
not abnormal for the operation.
(1) Slight flowing noise of
refrigerant in the refrigerating
cycle.
(2) Slight rubbing noise from the fan casing which
is cooled and then gradually warmed as
operation stops.
● The odor will possibly be emitted from the room
air conditioner because the various odor, emitted
by smoke, foodstuffs, cosmetics and so on, sticks
to it. So the air fi lter and the evaporator regularly
must be cleaned to reduce the odor.
● Please contact your sales agent immediately if the
air conditioner still fails to operate normally after the
above inspections. Inform your agent for the model of
your unit, serial number, date of installation. Please
also inform him regarding the fault.
● Power supply shall be connected at the rated voltage,
otherwise the unit will be broken or could not reach
the specifi ed capacity.
Note
● Avoid using the room air conditioner for cooling
operation when the outside temperature is below
the minimum recommended temperature.
The recommended maximum and minimum
operating temperatures of the hot and cold sides
should be as below:
When it does not operate
When it does not cool well
When it does not hot well
If the remote controller is
not transmitting a signal.
Remote controller
display is dim or blank.)
WHEN ASKING FOR SERVICE, CHECK
THE FOLLOWING POINTS
● Do the batteries need
replacement?
● Is the polarity of the
inserted batteries correct?
CONDITION
CHECK THE
FOLLOWING POINTS
● Is the fuse blown?
● Is the power supply in
normal condition?
● Is the circuit breaker “ON”?
● Is the setting of operation
mode different from other
indoor units?
● Is the pre-fi lter blocked with
dust?
● Does sunlight fall directly
on the outdoor unit?
● Is the airfl ow of the outdoor
unit obstructed?
● Are the doors or windows
opened, or is there any
source of heat in the room?
● Is the set temperature
suitable?
● Are the air inlets or air
outlets of indoor and
outdoor units blocked?
● Is the fan speed “LOW” or
“SILENT”?
NOTE:
● If the supply cord is damaged, it must be
replaced by the special cord obtainable at
authorized service parts centers.
● On switching on the equipment, particularly
when the room light is dimmed, a slight
brightness fl uctuation may occur. This is of no
consequence.
The conditions of the local Power Supply
Companies are to be observed.
Minimum Maximum
Indoor Dry bulb °C
70°F (21°C)
90°F (32°C)
Wet bulb °C 59°F (15°C) 73°F (23°C)
Outdoor Dry bulb °C 14°F (-10°C) 114.8°F (46°C)
Wet bulb °C – –
Minimum Maximum
Indoor Dry bulb °C
68°F (20°C)
81°F (27°C)
Wet bulb °C – –
Outdoor Dry bulb °C -4°F (- 20°C) 75.2°F (24°C)
Wet bulb °C – –
Cooling
Heating
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