Maintenance - Toshiba MMD-AP0481HFE Installation Manual

13

Maintenance

<Daily maintenance>
▼ Cleaning of air filter
If is displayed on the remote controller, maintain the air filter.
1
Push the button to stop the operation, then turn off the circuit breaker.
3
1) Take out the air filter.
2) Long life prefilter
Remove dust with a vacuum cleaner or rinse it off with water.
• If excessively dirty, it can be cleaned effectively by washing it with a soft brush and neutral detergent.
• After washing with water, drain off the water and dry it in the shade.
High-efficiency filter
Replace it when it is time for replacement.
• When cleaning the long life prefilter, check the dust collecting status and the reduction in air volume for
the high-efficiency filter, then replace the prefilter when it is time for replacement (approximately 2500
hours of operation is recommended).
Note that the high-efficiency filter cannot be washed with water and reused.
However, the lifetime of the high-efficiency filter may be shortened depending on the intake air condition.
NOTE
• Do not wash with water that is over 50 °C. This may cause discoloration or deformation.
• Do not expose to fire. Doing so could cause a fire.
• The factory default of the filter indicator is [2500H]. If the filter becomes excessively dirty, change the setting
time. Ask your dealer to describe how to change the setting time.
3) Mount the air filter.
2
Turn on the circuit breaker, then push the
operation.
3
After cleaning, push .
display disappears.
CAUTION
• Do not start the air conditioner while leaving air filter removed.
• Push the filter reset button. ( indication will be turn off.)
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1,2
button on the remote controller to start the
▼ Periodic Maintenance
For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air conditioner
in use be cleaned and maintained regularly to ensure efficient operation of the air conditioner.
When the air conditioner is operated for a long time, periodic maintenance (once a year) is recommended.
Furthermore, regularly check the outdoor unit for rust and scratches, and remove them or apply rustproof
treatment, if necessary.
As a general rule, when an indoor unit is operated for 8 hours or more daily, clean the indoor unit and outdoor unit
at least once every 3 months. Ask a professional for this cleaning / maintenance work.
Such maintenance can extend the life of the product though it involves the owner's expense.
Failure to clean the indoor and outdoor units regularly will result in poor performance, freezing, water leakage, and
even compressor failure.
Inspection before maintenance
Following inspection must be carried out by a qualified installer or qualified service person.
Parts
Access from inspection opening and remove the access panel. Examine the heat exchanger if there
Heat exchanger
is any clogging or damages.
Fan motor Access from inspection opening and check if any abnormal noise can be heard.
Access from inspection opening and remove the access panel. Examine the fan if there are any
Fan
waggles, damages or adhesive dust.
Filter Go to installed location and check if there are any stains or breaks on the filter.
Access from inspection opening and remove the access panel. Check if there is any clogging or drain
Drain pan
water is polluted.
▼ Maintenance List
Part Unit
Heat exchanger Indoor / outdoor
Fan motor Indoor / outdoor
Filter Indoor
Fan Indoor
Air intake / discharge
Indoor / outdoor
grilles
Drain pan Indoor
Ornamental panel,
Indoor
louvres
Exterior Outdoor
– 18 –
Inspection method
Check (visual / auditory) Maintenance
Wash the heat exchanger when it is
Dust / dirt clogging, scratches
clogged.
Take appropriate measures when
Sound
abnormal sound is generated.
• Wash the filter with water when it is
Dust / dirt, breakage contaminated.
• Replace it when it is damaged.
• Vibration, balance • Replace the fan when vibration or
balance is terrible.
• Dust / dirt, appearance
• Brush or wash the fan when it is
contaminated.
Fix or replace them when they are
Dust / dirt, scratches
deformed or damaged.
Dust / dirt clogging, drain Clean the drain pan and check the
contamination downward slope for smooth drainage.
Wash them when they are contaminated
Dust / dirt, scratches
or apply repair coating.
• Rust, peeling of insulator
Apply repair coating.
• Peeling / lift of coat
EN
36-EN