41
I
NDUCED
D
RAFT
AND
C
IRCULATOR
B
LOWERS
The bearings in the induced draft blower and circulator blower motors are permanently lubricated by the manufacturer. No further
lubrication is required. Check motor windings for accumulation of dust which may cause overheating. Clean as necessary.
C
ONDENSATE
T
RAP
AND
D
RAIN
S
YSTEM
(Q
UALIFIED
S
ERVICER
O
NLY
)
Annually inspect the drain tubes, drain trap, and field-supplied drain line for proper condensate drainage. Check drain system for
hose connection tightness, blockage, and leaks. Clean or repair as necessary.
F
LAME
S
ENSOR
(Q
UALIFIED
S
ERVICER
O
NLY
)
Under some conditions, the fuel or air supply can create a nearly invisible coating on the flame sensor. This coating acts as an
insulator causing a drop in the flame sense signal. If the flame sense signal drops too low the furnace will not sense flame and will lock
out. The flame sensor should be carefully cleaned by a qualified servicer using emery cloth or steel wool. Following cleaning, the
flame sense signal should be as indicated in the Specifications Sheet.
F
LUE
P
ASSAGES
(Q
UALIFIED
S
ERVICER
O
NLY
)
The heat exchanger flue passageways should be inspected at the beginning of each heating season.
B
EFORE
L
EAVING
AN
I
NSTALLATION
•
Cycle the furnace with the thermostat at least three times. Verify cooling and fan only operation.
•
Review the Owner’s Manual with the homeowner and discuss proper furnace operation and maintenance.
•
Leave literature packet near furnace.
R
EPAIR
AND
R
EPLACEMENT
P
ARTS
•
When ordering any of the listed functional parts, be sure to provide the furnace model, manufacturing, and serial numbers
with the order.
•
Although only functional parts are shown in the parts list, all sheet metal parts, doors, etc. may be ordered by description.
•
Parts are available from your distributor.
Functional Parts List-
Gas Valve
Blower Motor
Gas Manifold
Blower Wheel
Natural Gas Orifice
Blower Mounting Bracket
Propane Gas Orifice
Blower Cutoff
Igniter
Blower Housing
Flame Sensor
Pressure Switch
Rollout Limit Switch
Door Switch
Primary Limit Switch
Auxiliary Limit Switch
Coil Front Cover
Integrated Control Module
Transformer
Door Switch
Induced Draft Blower
Heat Exchanger with Recuperator Coil
