5
MAINTENANCE & SERVICE
WARNING:
ELECTRICAL SHOCK, FIRE OR EXPLOSION
HAZARD
Failure to follow safety warnings exactly could
result in serious injury or property damage.
Improper servicing could result in dangerous
operation, serious injury, death or property
damage.
• Before servicing, disconnect all electrical
power to the furnace and outdoor condensing
unit.
• When servicing controls, label all wires prior
to disconnecting. Reconnect wires correctly.
• Verify proper operation after servicing.
CAUTION:
Do not operate the system without a suitable
filter in the return air duct system. Always
replace the filter with the same size and type.
To ensure optimum performance and to minimize possible
equipment failure, the following maintenance tasks should
be performed periodically on this equipment:
1. The air filter installed with the system should be checked
and cleaned or replaced twice per year.
2. Check the coil, drain pan, and condensate drain line
for cleanliness at the start of each heating and cooling
season. Clean as needed.
Air Filter
Air filters are not supplied as an integral part of this
coil; however, an air filter kit is available. Refer to the
Replacement Parts List for available part numbers.
The filter must be installed upstream of the coil and
inspected frequently. When the filter becomes clogged
with dust or lint, it should be replaced (disposable type)
or cleaned (washable type). It is recommended that filters
be inspected and replaced at least twice during the year.
Generally it is best to replace or clean the filters at the
start of each heating and cooling season.
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General