Carrier 58GS - Manual (Page 11)

SERVICE
CAUTION: Tixe abüîty to properly perform
maintenance on this equipment requires certain
mechanical skills and tools. If yott are at all
uncertain, contact your Carrier deaier lor
qualified maintenance and .service..
Regular maintenance, exercised with care, results
in more efficient operating life of your furnace.
Periodic filter changes, along with inspection
and cleaning of the heat exchanger, inspection
and lubrication of blower motor and wheel, and
checking for tight electrical connections and proper
operation of controls each season, help insure
reliable service.
WARNîNC: Tura oft ali gas and electrical
power to furnace before performing my main­
tenance or service on unit. Failure to take this
precaution may result in personal injury' dtte to
electrical shock or uncontrolled gas leakage.
Air Filter
SAFETY INSTRUCTIONS; in order to
acquaint the user of the furnace with proper
procedure for checking and cleaning the filter,
the installer should instruct the user to perform
the steps described below.
Remember to disconnect electrical power before
removing access panels. To clean or replace air
filter, proceed as follows;
1. Remove blower access door.
2. Release filter retainer spring from behind flange
of furnace casing.
3. Slide filter out.
4. Clean filter with tap water.
5. Rinse and let dry. No oiling or coating of filter
is required.
6. Place filter in furnace with cross-sectional
binding up or facing blower.
CAUTION: Personal injury or property
damage may result if furnace is operated with
the blower cotnpartmeni door removed. A lack
of adequate combustion air may cause the main
burner flame to be drawn out of the furnace
unless blower compartment door is secured.
After inspecting or replacing the filter, be
sure that blower compartment door is securely-
fastened in place.
NOTE: If external filter rack is used in place of
internal filter mounting, inform the user of the
proper procedure for checking and cleaning the
filter.
Blower Motor and Wheel — For long life,
economy, and high efficiency, clean accumulated
dirt and grease from blower wheel and motor
annually.
CAUTION: As with any mechanical equipment,
personal injury can result from sharp metal
edges, etc.; therefore, be careful when removing
parts.
Lubricate motor every 5 years if motor is used on
intermittent operation (thermostat FAN switch in
AUTO, position), or every 2 years if motor is in con­
tinuous operation (thermostat FAN switch in ON
position).
Remember to disconnect electrical supply before
removing access panels.
Clean and lubricate as follows:
1. Remove access panels.
2. Remove electrical leads from left side of Molex
speed selector. See Fig. 7. Note location of
wires for reassembly.
3. Remove screws holding blower assembly
against blower deck and slide blower assembly
out of furnace.
4. Squeeze side tabs of Molex speed selector and
pull it from blower housing.
5. Loosen a screw in strap holding motor capacitor
to blower housing and slide capacitor from
under strap.
6. Mark blower wheel, motor, and motor
support in relation to blower housing before dis­
assembly, to insure proper reassembly.
7. Loosen setscrew holding blower wheel onto
motor shaft.
NOTE: Eurnaces with dual blowers, remove right
blower and wheel first as shown in Fig. 12.
Fig. 12 — Dual Blower with Right-Hand
Housing and Wheel Removed