Carrier TOSHIBA MMD-UP0071BHP-UL Manual De Instalación página 25

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.
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 (Once a year)
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
Access from check port 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
Unit Check (visual / auditory)
Part
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
louvers
• Rust, peeling of insulator
Outdoor
Exterior
• Peeling / lift of coat
47-EN
Inspection method
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.
12
Troubleshooting
Confirmation and check
Check code
Indoor unit number
Confrming an alarm history
Ten check codes in the past, troubled unit, and date when trouble occurred are displayed on "Alarm history" screen.
Deleting the alarm history
– 24 –
When an error occurs in the air conditioner, the check
code and the indoor unit number flash on the display of
the remote controller.
* The check code is only displayed during the
operation.
When the check code and indoor unit number are
displayed, pressing [ Return] opens the "Check"
screen.
In the "Check" screen, press [ Set/Fix] to show the
contacts.
Press [ Menu] to display "Model information".
1
In the "Field setting menu" screen, press
[ ] and [ ] to select "Alarm history",
and then press [ Set/Fix]
List of latest 10 alarm data is displayed.
* The oldest data are deleted in order to record
the new ones.
The date and time when the check code occurred
for the frst time is displayed for the repeated alarm.
1
Press [ Menu] while the "Alarm history"
screen is displayed
"Reset all alarm data." is displayed.
2
Press [ Set/Fix]
Delete the Alarm history in each remote controller
when the dual remote controller system is used.
EN
48-EN