9
CONTROL BOX
AND COMPRESSOR
ACCESS DOOR
OUTDOOR AIR
SCREEN
FILTER ACCESS DOOR
GAS SECTION
ACCESS DOOR
INDOOR MOTOR
ACCESS DOOR
CONDENSER COIL
ACCESS DOOR
C08545
Fig. 6 -- Panel and Filter Locations (48PG03-- 07 Shown)
MAINTAINING YOUR UNIT
All maintenance should be handled by skilled, experienced
personnel. Your dealer can help you establish a standard procedure.
For your safety, keep the area around the unit clear and free of
combustible materials, gasoline and other flammable liquids and
vapors.
To assure proper functioning of the unit, flow of combustion and
ventilating air must not be obstructed from reaching the unit.
Clearance of at least 6 ft on all sides is required.
ROUTINE MAINTENANCE AND CARE
FOR THE EQUIPMENT OWNER
Before proceeding with those things you might want to maintain
yourself, please carefully consider the following:
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in personal injury,
death, and/or property damage.
1.Turn off gas supply and electrical power to your unit before
servicing or performing maintenance.
2. Do not turn off electrical power to this unit without first
turning off gas supply and applying lockout tags.
3. When removing access doors or performing maintenance
functions inside your unit, be aware of sharp sheet metal
parts and screws. Although special care has been taken to
reduce sharp edges to a minimum, be extremely careful
when handling parts or reaching into the unit.
!
WARNING
Air Filter(s)
Air filters should be checked at least every 3 or 4 weeks and
changed or cleaned whenever they become dirty . T a ble 1 indicates
the correct filter size for your unit. Open the filter access panel to
replace or inspect the filters. All units have filter tracks into which
the filters slide. Remove the filters by pulling the filter slide
outward from the track. See Fig. 6 for filter access panel location.
Note the direction of flow arrows on the filter frame.
If you have difficulty in locating your air filter in the return--air
duct system, or if you have questions concerning proper filter
maintenance, contact your dealer for instructions. When replacing
your unit filters, always use the correct size and quantity as shown
in Table 1. Filter tracks are field convertible for 2 or 4--in. thick
filters. Verify airflow and duct static values, and related motor
sizing and belt drive adjustment, if filter type or efficiency rating is
changed from the original installation.
Units with outdoor air capability have cleanable screens for the
outdoor air. These screens should be checked annually and cleaned
as necessary.
FIRE AND EQUIPMENT DAMAGE HAZARD
Failure to follow this warning could result in personal injury,
death, and/or property damage.
Never operate unit without filters in place. Damage to blower
motor and/or compressors could result. An accumulation of
dust and lint on internal parts of your unit can cause loss of
efficiency and in some cases, fire.
!
WARNING
48PD, 48PG
(27 pages)
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