!
WARNING
DISCONNECT THE ELECTRICAL POWER SUPPLY TO
THE FURNACE BEFORE ATTEMPTING ANY MAIN-
TENANCE. FAILURE TO DO SO CAN CAUSE ELEC-
TRICAL SHOCK RESULTING IN PERSONAL INJURY
OR LOSS OF LIFE.
!
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous
operation.
Always verify proper operation aft er servicing.
Air Filter
Th
e fi lter should be inspected frequently and cleaned as necessary.
We recommend a monthly inspection at fi rst, perhaps coinciding
with the arrival of the monthly fuel bill as a reminder. Th
e frequency
may be increased or decreased depending on experience and condi-
tions.
Avoid the use of the fi berglass throw-away fi lters. Th
ey tend to block
up quickly, which may result in higher than normal operating tem-
peratures, and lower effi ciency.
Some paper media high effi
ciency fi lters, sometimes identifi ed as
HEPA fi lters can do an eff ective and excellent fi ltration of the air;
however, some models may also cause a large pressure drop across
the fi lter. Th
e contractor should assess the capabilities of the duct
system to deliver suffi
cient air fl ow if this type of fi lter is considered.
Recommended:
Electronic air fi lters using electrostatic precipita-
tion to remove dust are an excellent fi ltration device. A 16” x 25”
model is an ideal fi t with this furnace in the case of a side mounted
return air inlet. Th
e furnace control module is supplied with electri-
cal terminals for use with electronic air cleaners.
A 16” x 25” x 1” fi lter kit part number 550001458 can be ordered for
use on this appliance. Th
is kit includes the fi lter rack and washable
fi lter.
NOTICE
NOTE: If two return air inlets are used, both must be
equipped with fi lters.
!
CAUTION
Do not operate the furnace for prolonged
periods of time without an air
fi
lter.
A portion of the dust entrained in the air
may lodge in the supply air ductwork and
registers. Any recirculated dust particles
will be heated and charred by contact with
the furnace heat exchanger. This residue
will soil ceilings, walls, drapery, carpets,
and other household articles.
If a call for cool (Y) occurs simultaneously with the call for fan (G),
the call for cool overrides the call for fan and the blower remains off
for the cooling on delay period.
23 - AIR FLOW
TABLE 12 - CONTINUOUS FAN CFM
MODEL
Motor
HP
COOL
Jumper
ADJUST
Jumper
Continuous
Fan (CFM)
95V060-3
1/2
A
NORM
600
95V080-3
1/2
A
NORM
600
95V080-4
3/4
A
NORM
825
95V100-5
1
A
NORM
865
95V120-5
1
A
NORM
930
Note: Moving the ADJUST jumper from the NORM position to the (+)
or (-) position will increase or lower the continuous fan CFM by 15%
24 - MAINTENANCE AND TROUBLESHOOTING
47
