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Concealed Duct High Static Pressure | Owner’s Manual |
9 MAINTENANCE
WARNING
Cleaning the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have a qualified installer or qualified service person to do it. Do not attempt it by yourself.
Cleaning air filters | 1 | |
Clogged air filters will reduce the cooling and heating performance. |
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1 | If “ ” is displayed on the remote controller, clean the air filters. | |
2 | When the cleaning of air filters has been completed, push | button. |
| “ ” disappears. | 2 |
CAUTION
Cleaning remote controller
•Use a dry cloth to wipe the remote controller.
•Never use a damp cloth on the remote controller.
•Do not use a
It may damage or fade the surface of the unit.
• Do not use benzine, thinner, polishing powder, or similar solvents for cleaning. These may cause the plastic surface to crack or deform.
Periodic check
Preparing for long Shut Down Period
1)Clean the filters and reposition them in unit.
2)Operate the unit in fan mode for 3 or 4 hours to dry all internal parts.
3)Turn the unit off and disconnect the main power supply.
4)Before unit is turned on again, make sure the circuit breaker has been turned on for at least 12 hours.
Check points before operation
1)Check that the air filters are installed.
2)Check that the air outlet or inlet is not blocked.
3)Turn on the main power switch or the circuit breaker for the main power supply to the air conditioner.
NOTE
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.
Concealed Duct High Static PressureOwner’s Manual
Maintenance List
| Part | Unit |
| Check (visual/auditory) |
| Maintenance | |
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Heat exchanger | Indoor/outdoor | • | Dust/dirt clogging, scratches | • | Wash the heat exchanger when it is clogged. | |
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Fan motor | Indoor/outdoor | • Sound | • Take appropriate measures when abnormal sound is | |||
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Filter | Indoor | • | Dust/dirt, breakage | • | Wash the filter with water when it is contaminated. | |
• Replace it when it is damaged. | ||||||
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Fan | Indoor | • | Vibration, balance | • | Replace the fan when vibration or balance is terrible. | |
• | Dust/dirt, appearance | • | Brush or wash the fan when it is contaminated. | |||
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Air inlet/outlet grilles | Indoor/outdoor | • | Dust/dirt, scratches | • Fix or replace them when they are deformed or | ||
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Drain pan | Indoor | • Dust/dirt clogging, | • Clean the drain pan and check the downward slope | |||
| drain contamination |
| for smooth drainage. | |||
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Ornamental panel, | Indoor | • | Dust/dirt, scratches | • Wash them when they are contaminated or apply | ||
louvers |
| repair coating. | ||||
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Exterior | Outdoor | • | Rust, peeling of insulator | • | Apply repair coating | |
• | Peeling/lift of coat | |||||
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