Carrier 50GS - Manual (Page 2)

1. TURN OFF ALL ELECTRICAL POWER TO YOUR
UNIT AND INSTALL LOCK-OUT TAG BEFORE SER-
VICING OR PERFORMING MAINTENANCE. ELEC-
TRIC SHOCK COULD CAUSE SERIOUS INJURY OR
DEATH.
2. When removing access panels or performing maintenance
functions inside your unit, be aware of sharp sheet metal
parts and screws. Although special care is taken to keep
sharp edges to a minimum, be extremely careful when
handling parts or reaching into the unit.
Air Filters
The air filter(s) should be checked about every 4 weeks and
changed or cleaned whenever it becomes dirty. Dirty filters
produce excessive stress on the blower motor and can cause the
motor to overheat and shut down. Table 1 indicates the correct
filter size for your unit. Refer to Fig. 2 to access the filters.
To replace or inspect filters (or accessory filter rack when
supplied):
1. Remove the filter access panel using a 5/16-in. (7.9 mm) nut
driver or wrench.
2. Remove the filter(s) by pulling it out of the unit. If the filter(s)
is dirty, clean or replace with a new one.
When installing the new filter(s), note the direction of the airflow
arrows on the filter frame.
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
Never operate your unit without the filter(s) in place. Failure
to heed this warning may result in damage to the blower
motor and/or compressor. An accumulation of dust and lint on
internal parts of your unit can cause loss of efficiency and, in
some cases, a fire.
Fans and Fan Motor
Periodically, check the condition of fan wheels and housings and
fan-motor shaft bearings. Contact your dealer for the required
annual maintenance.
Indoor and Outdoor Coils
Cleaning of the coils should only be done by qualified service
personnel. Contact your dealer for the required annual mainte-
nance.
Condensate Drain
The drain and condensate line should be checked and cleaned at
the same time the cooling coils are checked by your dealer.
Compressor
All compressors are factory-shipped with a normal charge of the
correct type refrigeration grade oil. A compressor should rarely
require additional oil.
Condenser Fan
Do not poke sticks, screwdrivers, or any other objects into
revolving fan blades. Injury or equipment damage may result.
The fan must be kept free of all obstructions to ensure proper
cooling. Contact your dealer for any required service.
Fig. 2—Filter Access Panel-Vertical Supply Shown
(Unit Shown with Optional Louvered Grille)
Table 1—Indoor-Air Filter Data
UNIT SIZE
50GS
(50 HZ)
024 030 036 048 060
RETURN-AIR
FILTER (mm)
Throwaway
20” x 20”
(508 x 508)
20” x 20”
(508 x 508)
20” x 24”
(508 x 609.6)
24” x 30”
(609.6 x 762)
24” x 30”
(609.6 x 762)
C00160
ACCESS PANEL
FILTER ACCESS
PANEL*
*For accessory filter rack.
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