– 33 –
Proper installation
Pay attention to operating noises
• When you install the unit, take care to choose a place that can comfortably stand the weight of the unit and does not increase the
operating noise or vibration. If vibration is transmitted through the house, fix the unit with the aid of vibration-proof pads between the
unit and the fittings.
• Select a place where cold or hot air, operation noises from the indoor and outdoor units do not cause any inconvenience to your
neighbours.
• Do not leave any obstacles near the outlet and inlet of the outdoor unit. This may cause malfunctioning and increased operating noise.
• If you hear an irregular noise during operation, contact your dealer.
Depending on operating environment, the inside of the air-conditioner may become dirty after a few year operations. This will reduce
performance. In addition to normal cleaning, we would recommend inspection and maintenance. (This may lead the air-conditioner to
having a longer life without any trouble.)
• Contact your dealer, or any distributor, for inspection and maintenance. (There will be a charge for this service).
• We would recommend inspection and maintenance to be carried out during the off-season.
• If the supply cord of this appliance is damaged, it must only be replaced by a repair shop appointed by the manufacturer, because
special purpose tools are required.
Suitable installation position
Troubleshooting
Please carry out the following checks before making a service call.
If the air-conditioner does not
operate properly after you have
checked the left points, or if any
doubt still exists after you have
consulted page 34, or if things
happen as shown on page 35,
switch off the power and contact
your dealer.
•
Do not put any obstruction in front of the indoor unit, preventing proper ventilation and functioning.
•
Do not install the unit in any of the following places:
−
Where there is a danger of leaking flammable gases.
−
Where there is substantial splashing of oil.
•
Malfunctioning due to corrosion may occur if the unit is installed in a spa where sulfide gases are generated, or in a seaside resort
exposed to sea breezes. Contact your dealer.
•
The air-conditioner and remote control must be at least 1 meter away from a TV set or radio.
•
Drain the dehumidified liquid from the indoor unit into a spot that drains well.
Inspection and maintenance
The air-conditioner does not work at all.
•
Has the power switch been turned off?
•
Has the timer been set in the “ON” position?
•
Is there a power failure or a blown fuse?
Poor cooling or heating
•
Have you set the thermostat at a suitable temperature?
•
Is the air filter clean? (Not clogged?)
•
Have you left any doors or windows open?
•
Is there any direct sunlight entering the room?
•
Is there a heat source in the room?
•
Are there too many people in the room?
DRED
■
This air-conditioner complies with the DRED (Demand Response Enabling Devices) standard AS/NZS4755.3.1 and supports demand
response modes 1, 2 and 3 (DRM1, 2 and 3). Since the air-conditioner limits the electric power or energy by receiving the DRED input
signal, the sense of cooling operation or heating operation may deteriorate over time. The outdoor unit of this air-conditioner is equipped
with a terminal block for DRED input and supports ELV (Extra-Low Voltage) complying with AS/NZS60335.1.
Under DRED mode, RUN light and TIMER light blink alternately as shown. When the Defrost function becomes effective during DRED
operation, the TIMER light blinks quickly.
RUN light
ON
OFF
2 seconds
2 seconds
2 seconds
2 seconds
ON
OFF
TIMER light
Display in DRED mode
Display in DRED mode during Defrost operation
RUN light
ON
OFF
2 seconds
2 seconds
0.5 seconds
2 seconds
0.5 seconds
TIMER light
ON
OFF
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