How To Care For Your Furnace (Con't)
BURNER CLEANING
Check burner. If cleaning is required, contact a qualified
service technician to clean and service burner.
WARNING
DANGER OF BODILY INJURY OR DEATH
MAKE SURE ELECTRIC POWER AND GAS
SUPPLY ARE OFF BEFORE REMOVING PANELS
OR DOORS, ETC.
CLEANING BURNER COMPARTMENT
Because cold air is attracted to the flame during furnace
operation, a build up of lint from bedding and dust, etc.,
in the burner area will occur each heating season. It is
necessary to clean this area regularly. Use a vacuum
cleaner with a narrow attachment to reach small areas.
Be careful in and around the pilot. A change in its adjust-
ment could be made if struck during cleaning.
TO REMOVE BURNER(S)
Disconnect gas line inside cabinet.
Refer to "Mounting Your Furnace" section (pages 15, 16
and 17).
Check the spark gap. It must be carefully adjusted to
specifications as illustrated (Fig. 42) for ignition device to
function properly.
PILOT FLAME AND SPARK GAP
PILOT • 3/8 TO 112
HOOD
SENSOR
SLIGHT
ORANGE TIP
N_TURAL GAS
ELECTRODE TYPICAL
TYPICAL BLUE CONE BLUE CONE
--LP GAS NATURAL
NATURAL
BURNER GAS
CASTING
Furnace Technical Information
MODEL
NUMBER
3508732
3508731
3508332
35O8331
5008732
50O8731
5508332
5508331
6508732
6508731
TYPE
GAS
NAT
L.F:
NAT
L.I_
NAT
L.P
NAT
L.R
NAT
L.P
INPUT** RATING
HI-FIRE LO-FIRE
35,000 24,500
35,000 24,500
35,000 24,500
35,000 24,500
50,000 35,000
50,000 35,000
55,000 38,500
55,000 38,500
65,000 45,500
65,000 45,500
MAIN BURNER ORIFICE
DRILL DEC.
#38 .1015
#52 .0635
#38 .1015
#52 .0635
#43 .089O
#54 .0550
#42 .0935
#54 .O550
#38 .1015
#52 .0635
QTY.
1
1
1
1
2
2
2
2
2
2
**For elevations above 2000 feet reduce ratings 4% for each 1000 feet above sea level
The efficiency rating of these appliances is a product thermal efficiency rating system determined under continuous
operating conditions and was determined independently of any installed system.
m32--
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