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Condensate Drains
Keep condensate drains free of dirt and foreign matter.
Return-Air Filters
Refer to Replacing Filters section for filter accessibility and
removal. Replace with clean filters of the sizes listed in
Tables 1-4.
Coil Removal
Remove unit panels and corner posts as required. Discon-
nect coil connections and remove fastening screws. Re-
move coil through end or side sections of unit.
Cleaning Cooling Coil
Remove return-air filters. Remove any heavy dirt that may
have accumulated on underside of coil. Coil can be cleaned
more easily with a stiff brush, vacuum cleaner, or com-
pressed air when coil is dry. If coil is wet or if water is to be
used for cleaning, guard against splashing water on electri-
cal components or damaging surrounding area. Clean coil
baffles as applicable and check for tight fit to be sure air
does not bypass coil.
Cleaning Insulation
The insulation contains an immobilized antimicrobial agent
that helps inhibit the growth of bacteria and fungi. Clean the
inner surface of the insulation according to the separate
maintenance instructions shipped with the unit.
Replacing Filters
Filters can be removed and installed from either side of the
unit. Install new filters in units that have one fan as follows:
1. Remove the side access panel (retain screws).
2. Remove the filter retainer clip (see Fig. 40).
3. Remove old filters by lifting and tilting them out of the fil-
ter track. (See Fig. 14 and 41.) Use the factory-supplied
filter hook to slide filters within reach for removal. The
filter hook is shipped inside the unit in the filter track.
4. Reverse the procedure to install new filters.
FAS-FHS-240-336-02SI
UNIT OPERATION HAZARD
Failure to follow this caution could cause equipment
damage.
Do not operate unit without air filters.
Specifications subject to change without notice.
CAUTION
Fig. 40 — Remove Filter Retainer Clip
Fig. 41 — Filter Removal/Replacement
Filter
Retainer
Clip
47
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