Maintenance - Lennox MS8 SERIES Installation And Service Procedures

3. An optional field-provided exterior wall channel may be
used in lieu of taping the utility bundle (see figure 48)
to protect the bundle from UV rays, weather, etc.
OPTIONAL EXTERIOR WALL CHANNEL
FIELD-PROVIDED PROTECTIVE
CHANNEL (UTILITY BUNDLE
INSIDE)
MS8C / MS8H (208-230V)
FIGURE 48

Maintenance

OUTDOOR UNIT
1. Ensure power is off before cleaning.
2. It may be necessary to wash the outdoor coil more
frequently if it is exposed to substances which are
corrosive or which block airflow across the coil (e.g.,
pet urine, cottonwood seeds, fertilizers, fluids that may
contain high levels of corrosive chemicals such as
salts).
3. Outdoor Coil (Sea Coast) — Moist air in ocean
locations can carry salt, which is corrosive to most
metal. Units that are located near the ocean require
frequent inspections
inspections will determine the need to wash the unit
including the outdoor coil. Consult your installing
contractor for proper intervals/procedures for your
geographic area or service contract.
4. Outdoor unit fan motor is pre-lubricated and sealed. No
further lubrication is needed.
5. Visually inspect all connecting lines, joints and coils for
evidence of oil leaks.
6. Check all wiring for loose connections.
7. Check for correct voltage at unit (unit operating).
INDOOR UNIT
1. Clean or change filters.
2. Check all wiring for loose connections
3. Check for correct voltage at unit (blower operating).
4. Clean coil, if necessary.
5. Check connecting lines and coils for signs of oil leaks.
6. Check condensate line and clean, if necessary.
NOTE The filter must be in place and the front panel must
—
be closed any time the unit is in operation.
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and maintenance. These