Periodic Maintenance - Toshiba Carrier MMU-AP0074HPUL Manual De Instalación

Cleaning of discharge louver
The discharge louver can be removed to clean.
1. Remove the discharge louver.
• Holding the both ends of the discharge louver,
remove the louver sagging the center downward.
2. Cleaning with water
• If the dirt is terrible, clean the louver by tepid water
with neutral detergent or water.
3. Mount the discharge louver.
• First push in one side of the louver, and then insert
the other side sagging the center downward.
(2) Insert in the louver sagging
(1) Insert down the center downward.
Be careful to the direction of the louver when
mounting.
Mount the louver so that the side with the mark faces
upward and the arrow direction of the mark directs.
REQUIREMENT
Be sure to clean the heat exchanger with
pressurized water.
If a commercially available detergent (strong alkaline or
acid) cleaning agent is used, the surface treatment of the
heat exchanger will be marred, which may degrade the
self cleaning performance.
For details, contact the dealer.
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▼ 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 Dust / dirt clogging, scratches
Fan motor Indoor / outdoor Sound
Filter Indoor Dust / dirt, breakage
• Vibration, balance
• Dust / dirt, appearance
Fan Indoor
Air intake / discharge
Indoor / outdoor Dust / dirt, scratches
grilles
Dust / dirt clogging, drain
Drain pan Indoor
contamination
Ornamental panel,
Indoor Dust / dirt, scratches
louvres
• Rust, peeling of insulator
Exterior Outdoor
• Peeling / lift of coat
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Inspection method
Check (visual / auditory) Maintenance
Wash the heat exchanger when it is
clogged.
Take appropriate measures when
abnormal sound is generated.
• Wash the filter with water when it is
contaminated.
• Replace it when it is damaged.
• Replace the fan when vibration or
balance is terrible.
• Brush or wash the fan when it is
contaminated.
Fix or replace them when they are
deformed or damaged.
Clean the drain pan and check the
downward slope for smooth drainage.
Wash them when they are contaminated
or apply repair coating.
Apply repair coating.
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