Cleaning, Maintenance And Troubleshooting - Carrier 40MBD Owner's Manual

CLEANING, MAINTENANCE AND TROUBLESHOOTING

CAUTION
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 the 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.
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 1 on
page 11.
CAUTION
FAN/SLC
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.
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.
Cleaning the Air Filters
Remove and clean the air filters once a month.
NOTE: If 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. 9 — Remove the filters
OM-40MBD-04
3. Vacuum the filters.
4. Clean with warm water.
Fig. 11 — Clean filter with warm water
5. Shake the filter to remove excess water and dry thoroughly.
6. Replace the filter by sliding into rack until the filter snaps in place.
7. Close the front panel on the 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
water onto the fan coil. Do not use abrasive or petroleum based cleaners as they
may damage the front panel.
Preparing for Extended Shutdown Period
Clean the filters and reposition them in 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 batteries from the remote control.
Specifications subject to change without notice.
Fig. 10 — Vacuum the filters
CAUTION
°
F (40.6
°
C) and do not pour
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