Filter
Top Products
7
90
STEP 1
STEP 2
C
L
O
S
E
STEP 3
OFF
ON
MAIN
A07797
Fig. 7 -- To Shut--off Unit Electric Cooling
MANIFOLD
BURNER
BURNER FLAME
C99021
Fig. 8 -- Monoport Burner
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, ELECTRICAL SHOCK AND
CUT HAZARD
Failure to follow this warning could result in personalinjury,
death or property damage.
1. TURN OFF ELECTRICAL POWER TO YOUR UNIT
BEFORE SERVICING OR PERFORMING
MAINTENANCE.
2. When removing access panels orperforming maintenance
functions inside your unit, be aware of sharp sheet metal
parts and screws. Although special care is taken to reduce
sharp edges to a minimum, be extremely careful when
handling parts or reaching into the unit.
!
WARNING
Air Filters
The air filter(s)should bechecked every 3or 4 weeks and changed
or cleaned whenever it becomes dirty . Dirty filters produce exces-
sive stress ontheblower motor and can causethemotor to overheat
and shut down.
This unit must have air filters in place before it can be operated.
These filterscan belocated in one of at leasttwo places. In many ap-
plications, the installer will provide return air f ilter grilles mounted
on the wall or ceiling of the conditioned structure.Intheinstanceof
filtergrilles, thefilterscan simply be removed from thegrilleand re-
placed.
The other typical application is an accessory filter rack installed in-
side the unit itself. The following information is given to assist in
changing filters used in these internal filter racks.
Table 1 indicates the correct filter size for your unit. Refer to Fig. 2
to access f ilters installed in the accessory filter rack.
Table 1—Air Filters Located Inside Unit
(For Replacement Purposes)
Unit Size Quantity Filter Size in. (mm)
A24---A30 2
12x20x1
(305x508x25)
A36---A60 3
12x24x1
(305x610x25)
To replace or inspect filters in accessory filter rack (See Fig. 2):
1. Remove the f ilter access panel using a 5/16--in. nut driver.
2. Removethefilter(s)by pullingitoutoftheunit.If thefilter(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 in-
structions. When replacing filters, a lways usethesamesize andtype
of filter t hat was s upplied originally by the installer.
FIRE AND UNIT OPERATION HAZARD
Failure to follow this warning could result in personalinjury,
death or property damage.
Never operate your unit without filters in place. An
accumulation of dustand lint on internal partsofyour unitcan
cause loss of efficiency.
!
WARNING
Fans and Fan Motors
Periodically check the condition of fan wheels a nd 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 per-
sonnel. Contact your dealer for the required annual maintenance.
Condensate
Drain
The drain pan and condensate drain line should be checked and
cleaned atthesame timethecooling coilsare checkedby yourdeal-
er.
Compressor
Allcompressorsarefactoryshippedwithanormalchargeofthecor-
rect type of refrigeration grade oil. A compressor should rarely re-
quire additional oil.