Carrier 58VCA - Manual (Page 2)

A WARNING
The ability to properly perform maintenance on this equip­
ment requires certain expertise, mechanical skills, tools, and
equipment. If you do not possess these, do not attempt to
perform any maintenance on this equipment other than those
procedures recommended in the User’s Manual. FAILURE
TO FOLLOW THIS WARNING COULD RESULT IN
POSSIBLE DAMAGE TO THIS EQUIPMENT, SERIOUS
PERSONAL INJURY, OR DEATH.
A WARNING
Turn OFF the gas and electrical supplies to the unit before
performing any maintenance or service. Follow the operating
instructions on the label attached to the furnace. Failure to
follow this warning could result in personal injury.
The minimum maintenance that should be performed on this
equipment is as follows:
1. Check and clean or replace air filter each month or as required.
2. Check blower motor and wheel for cleanliness and lubrication
each heating and cooling season. Clean and lubricate as
necessary. (See Step 2.)
3. Check electrical connections for tightness, and controls for
proper operation each heating season. Service as necessary.
4. Check for proper condensate drainage; clean as necessary.
5. Check for blockages of combustion-air and vent pipes.
A CAUTION
As with any mechanical equipment, personal injury could
result from sharp metal edges, etc. Be careful when removing
parts.
Step 1—Air Filter Cleaning and Replacement
The air filter arrangement may vary depending on the application.
A CAUTION
Never operate unit without a filter or with filter access door
removed. Failure to follow this warning could result in a fire
or personal injury.
DOWNFLOW FURNACES ONLY - Each furnace accommo­
dates 2 filters which are installed in the return-air duct. (See Fig.
3.) To clean or replace the filters, proceed as follows:
1. Turn OFF electrical supply to unit.
2. Remove blower access door.
3. Reaching up behind top plate, tilt filters toward center of
return-air plenum, remove filters, and replace or clean as
needed.
4. Furnaces are equipped with permanent, washable filters. Clean
these filters by spraying cold tap water through filter in
opposite direction of airflow.
5. Rinse filters and let dry. Oiling or coating of filters is not
recommended.
6. Reinstall filters with cross-mesh binding facing blower.
7. Replace access door.
8. Turn ON electrical supply to furnace.
UPFLOW FURNACES ONLY — To clean or replace the air
filter, proceed as follows:
1. Turn OFF electrical supply to unit.
INSTALLATION
-POSITION
OF FILTERS
A92117
Fig. 3—Position of Filters in Downflow Furnace
CONTROL
BOX
Fig. 4—Filter Installed for Bottom Inlet
AUX J-BOX
& BLOWER
DOOR SWITCH
Fig. 5—Filter Installed for Side Inlet
2. Remove access doors.
3. Release filter retainer spring from behind flange of furnace
casing. (See Fig. 4 and 5.)
4. Slide filter out.
WA