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9
CLEANING, MAINTENANCE AND TROUBLESHOOTING
ELECTRICAL SHOCK HAZARD
Failure to follow this caution may result in personal injury
or death.
Always turn off power to the system before performing any
cleaning or maintenance to the system. Turn off the outdoor
disconnect switch located near outdoor unit. Be sure to
disconnect indoor unit if on a separate switch
CAUTION
!
EQUIPMENT DAMAGE/OPERATION HAZARD
Failure to follow this caution may result in equipment
damage or improper unit operation.
Operating the system with dirty air filters may damage the
indoor unit and could cause reduced cooling performance,
intermittent system operation, frost build−up on indoor coil
or blown fuses.
CAUTION
!
Periodic Maintenance
Periodic maintenance is recommended to ensure proper
operation of the unit. Recommended maintenance intervals may
vary depending on the installation environment, e.g., dusty
zones, etc. Refer to Table 2.
CUT HAZARD
Failure to follow this caution may result in personal injury.
The coil fins are very sharp. Use caution when cleaning.
Always wear safety protection.
CAUTION
!
Cleaning the Coil
Clean the coil at the beginning of each cooling season, or when
necessary. Use a vacuum cleaner or a long−bristle brush to avoid
damage to the coil fins.
Air Filters
Remove and clean the air filters once a month.
NOTE: If the air filters show signs of excessive wear or are torn, they
must be replaced. Contact your local dealer for replacement filters.
1. Unscrew filters from the frame.
2. Pull filters down to remove.
Fig. 10 − Remove the Filters
3. Vacuum filters.
A150648
Fig. 11 − Vacuum the Filters
4. Clean with warm water.
A150649
Fig. 12 − Clean Filter with Warm Water
5. Shake filter to remove excess water and dry thoroughly.
6. Replace filter by sliding into rack until filter snaps in place.
7. Close front panel on unit.
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage.
When cleaning the front panel, do not use water hotter than
105_F (40.6_C) and do not pour water onto the fan coil. Do
not use abrasive or petroleum based cleaners as they may
damage the front panel.
CAUTION
!
Preparing for Extended Shutdown Period
Clean the filters and place them back into the unit. Operate the unit
in FAN ONLY mode for 12 hours to dry all internal parts. Turn
the main power supply off and remove the batteries from the
remote control.
System Operation Recommendations
The items outlined in the following list help to assure proper
system operation:
S Replace both remote control batteries at the same time.
S Point the remote control toward the unit display panel when
transmitting a command.
S Keep doors and windows closed while unit is operating.
S Contact an authorized service representative if a problem arises
that cannot be easily resolved.
S Do not perform cleaning or maintenance activities while the
unit is on.
S Keep the display panel on the unit away from direct sunlight
and heat as this may interfere with remote control
transmissions.
S Do not block air intakes and outlets on the indoor or outdoor
units.
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