5
5. Emergency Operation for IR Wireless Remote Controller
Following indication shows that the filter needs cleaning.
• Wired remote controller : “FILTER”
• RF thermostat: “Clean Filter”
• ASK authorized people to clean the filter.
When resetting “FILTER” or “Clean Filter” display. Resetting the
indication, refer to the operation manual of each remote controller.
Note:
When two or more different types of indoor unit are controlled, the
cleaning period differs with the type of filter. When the master unit
cleaning period arrives, “FILTER” is displayed. When the filter display
goes off, the cumulative time is reset. (only for wird remote controller)
“FILTER” or “Clean Filter” indicates the cleaning period when the air
conditioner was used under general indoor air conditions by criteria time.
Since the degree of dirtiness depends on the environmental conditions,
clean the filter accordingly.
The filter cleaning period cumulative time differs with the model.
This indication is not available for IR wireless remote controller.
► Cleaning the filters
• Clean the filters using a vacuum cleaner. If you do not have a vacuum
cleaner, tap the filters against a solid object to knock off dirt and dust.
• If the filters are especially dirty, wash them in lukewarm water. Take
care to rinse off any detergent thoroughly and allow the filters to dry
completely before putting them back into the unit.
Caution:
• Do not dry the filters in direct sunlight or by using a heat source,
such as an electric heater: this may warp them.
• Do not wash the filters in hot water (above 50°C), as this may
warp them.
• Make sure that the air filters are always installed. Operating the
unit without air filters can cause malfunction.
Caution:
• Before you start cleaning, stop operation and turn OFF the power
supply.
• Indoor units are equipped with filters to remove the dust of sucked-
in air. Clean the filters using the methods shown in the following
sketches.
6. Care and Cleaning
[Combination Cooling and Heating Models]
[Cooling Only Models]
Operation Monitor Display
GREEN
ORANGE
STOP
The display will appear orange for 5
seconds following the switch operation
as indicated at the left, and then it will
return to the regular display.
COOL
HEAT
Turning off
Lighting
* Operation details at the time of emergency operation are as shown
below.
Note that over the first 30 minutes or so, the temperature adjustment
will not function and the unit will be in continuous operation with the fan
on high.
Operation Mode
COOL
HEAT
Set Temperature
24°C, 75°F
24°C, 75°F
Fan Speed
High
High
Airflow Direction Up and Down
Setting 1
Setting 4 (5)
Cooling
Heating
Stop
Cooling
Stop
When the IR wireless remote controller cannot be used
When the batteries of the IR wireless remote controller run out or the IR
wireless remote controller malfunctions, the emergency operation can be
done using the emergency buttons on the grille.
DEFROST/STAND BY lamp (Orange)
Operation lamp (Green)
Emergency operation switch (cooling/heating)
Receiver
• Each press of the emergency operation switch will toggle the
operation mode.
• Check “COOL/HEAT” with the operation monitor display. (The display
will appear orange for 5 seconds after the switch operation.)
B
A
► Filter removal
Caution:
• In removing the filter, precautions must be taken to protect your
eyes from dust. Also, if you have to climb up on a stool to do the
job, be careful not to fall.
• When the filter is removed, do not touch the metallic parts inside
the indoor unit, otherwise injury may result.
Using both hands, pull both the bottom corners of the inlet grille to
open the grille, then lift the filter until it clicks at the stop position.
Hold the knobs on the filter and pull the filter up, then pull it out
downward.
(Located in two places, on the left and right.)
Front grille
Filter
C
B
A
D
