Carrier 50ES-A Air Conditioner User Manual


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If you have difficulty locating your air filter(s) or have questions
concerning proper filter maintenance, contact your dealer for
instructions. When replacing filters, always use the same size and
type of filter that was supplied originally by the installer.
UNIT OPERATION HAZARD
Failure to follow this caution may result in property
damage.
Never operate your unit without filters in place. An
accumulation of dust and lint on i nternal parts of your unit
can cause loss of efficiency and blower motor and/or
compressor damage.
!
CAUTION
Access Panels
Filter Access Panel
For Accessory Filter Rack
A09044
Fig. 3 -- Unit Access Panel
RETURN
DUCT COVER
(Remove for
lter access)
SMALL CHASSIS
A10063
Fig. 4 -- Small Chassis Filter Access
LARGE CHASSIS
FILTER
ACCESS
PANEL
A10062
Fig. 5 -- Large Chassis Filter Access
Replacing or inspecting filters in units with econom-
izers
Small Chassis (See Fig. 4 )
1. Remove return air duct cover at rear of unit using a 5/16 --in.
nut driver.
2. Remove the filter(s) by pulling it out and through the unit
duct opening. If filter is dirty, replace both f ilters with new
ones.
When installing the new filters, note the direction of the airflow
arrows on the filter frame, which should be pointing at the indoor
coil.
3. Reinstall duct cover ensuring opening is air and water tight.
Large Chassis (See Fig. 5)
1. Remove filter access door using a 5/16--in. nut driver.
2. Remove the filter(s) by pulling it out and through the unit
filter access door. If filter is dirty, replace both filters with
new ones.
Units with bent indoor coils, install 24 x 18 x 1 (610 x 457 x 25
mm) filter first and then install 24 x 16x1(610x406x25)filter.
When installing the new filters, note the direction of the airflow
arrows on the filter frame, which should be pointing at the indoor
coil.
3. Reinstall filter access door ensuring opening is air and
watertight.
Table 2 – Indoor Air Filter Data with Economizer
Unit Size Filter Size
30-36
2each20x12x1
(508 x 305 x 25 mm)
42-48
1 each 24 x 14 x 1 (610 x 356 x 25 mm),
24 x 16 x 1 (610 x 406 x 25 mm)
60*
1 each 24 x 16 x 1 (610 x 406 x 25 mm),
24 x 18 x 1 (610 x 457 x 25 mm)
*Units with bent indoor coil.
Fans and Fan Motors
Periodically check the condition of fan wheels and housings and
fan--motor shaft bearings. Contact your dealer for the required
annual maintenance.
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