MAINTENANCE (continued)
Maintenance of dust catcher
No daily maintenance is required. However, dust catcher should be cleaned if the dirt is noticeable
Some type of dust may not go in the dust box but be accumulated on the rear surface of the dust catcher. It
is recommended to check the dust amount on the dust catcher approximately once every half year and clean
the dust catcher if it is dirty.
1
Stop the operation with the remote controller and
turn off the circuit breaker.
2
Remove the front panel.
3
Remove the dust catcher.
4
Wash with water.
5
Attach the dust catcher.
6
Attach the front panel.
7
Turn on the circuit breaker.
(Refer to page 9 on removing the front panel)
• Remove the dust catcher as shown with arrows.
• If dust is accumulated at the inner side of
the dust catcher, remove
the dust with a vacuum cleaner.
• Please wash with water.
• If the dirt is stubborn, use a mild detergent and wash with warm
water below 40°C.
• Dry completely in the shade.
• Hold the dust catcher for the top face with its side having the lever
facing towards you. Insert and push in the dust catcher in the
arrow direction until it clicks.
(Refer to page 10 on attaching the front panel)
CAUTION
Improper installation of the dust catcher could result in malfunction. Filter cleaning operation can not
be performed properly and the ( ) indicator blinks.
1
2
1
2
Hole
Hold the dust catcher for the top face
Claw
UNDERSTANDING THE OPERATING MECHANISM
Heating capability
• This room air conditioner utilizes a heat pump system that absorbs exterior heat and brings it into a room to
be heated. As the ambient temperature gets lower, heating capability will also lower. In such a situation, the
inverter work to increase compressor rpm to keep the unit’s heating capability from decreasing. If the unit's
heating performance is still unsatisfactory, other heating appliances should be used to augment this unit's
performance.
• The air conditioner is designed to heat an entire room so that it may take some time before you feel warm.
Timer operation is recommended for effective preheating ahead of the desired time.
• When outside temperature becomes lower while humidity remains high, condensation forms on the heat
exchanger of the outdoor unit and the heating efficiency may be affected if condensation is not removed. To
prevent this problem, the air conditioner performs condensation-removing operation automatically. At this
time, the heating operation is suspended and it usually takes approximately 5-10 minutes (maximum of
20 minutes) to resume the heating operation.
Cooling, dehumidifying capabilities
• If the heat present in a room exceeds the unit’s cooling capacity (for example, if there are many people in the
room or other heating appliances are used), the preset room temperature may not be reached.
• The preset temperature may not be reached if a heat source or humidity which exceeds the air conditioner’s
dehumidifying ability is present in the room.
Piping which is too long could lower the heating/cooling performance.
CAUTION
Do not use a stove or any
other high temperature
devices in proximity to
the indoor unit.
PROHIBITION
NAMES AND FUNCTIONS OF EACH PART (Refer page 4)
REFRIGERANT INFORMATION
MODEL
Refrigerant
(kg)
GWP
t CO2 eq.
RAC-25WSE
RAC-35WSE
RAC-50WSE
675
0.662
675
0.837
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