Burners; Induced Draft And Circulatorb; Ondensate Rap And Rain Ystem; Flame Sensor - Goodman MEC961205DN Instruction Manual

HIGH VOLTAGE !
T
O AVOID PERSONAL INJURY OR DEATH DUE TO
,
ELECTRICAL SHOCK DISCONNECT ELECTRICAL POWER
BEFORE
PERFORMING ANY SERVICE OR MAINTENANCE
Burner Flame
B
URNERS
Visually inspect the burner flames periodically during the heating
season. Turn on the furnace at the thermostat and allow several
minutes for flames to stabilize, since any dislodged dust will
alter the flames normal appearance. Flames should be stable,
quiet, soft, and blue (dust may cause orange tips but they must
not be yellow). They should extend directly outward from the
burners without curling, floating, or lifting off. Flames must not
impinge on the sides of the heat exchanger firing tubes.
I D C
NDUCED RAFT AND IRCULATOR
The bearings in the induced draft blower and circulator blower
motors are permanently lubricated by the manufacturer. No fur-
ther lubrication is required. Check motor windings for accumu-
lation of dust which may cause overheating. Clean as necessary.
C T D
ONDENSATE RAP AND RAIN
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.
T ,
O AVOID ELECTRICAL SHOCK
DISCONNECT ELECTRICAL POWER BEFORE PERFORMING ANY
. I
MAINTENANCE F YOU MUST HANDLE THE IGNITER
. T
HANDLE WITH CARE OUCHING THE IGNITER ELEMENT
,
WITH BARE FINGERS ROUGH HANDLING OR VIBRATION
COULD DAMAGE THE IGNITER RESULTING IN PREMATURE
. O
FAILURE NLY A QUALIFIED SERVICER SHOULD EVER
.
HANDLE THE IGNITER
WARNING
.
Figure 42
B
LOWERS
S (Q S
YSTEM UALIFIED ERVICER
WARNING
,
INJURY OR DEATH
,
F S (Q
LAME ENSOR UALIFIED
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 steel wool.
F P (Q
LUE ASSAGES UALIFIED
The heat exchanger flue passageways should be inspected at the
beginning of each heating season.
B L
EFORE EAVING AN
•
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 R
EPAIR AND EPLACEMENT
•
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-
Blower Motor
Blower Wheel
Blower Mounting Bracket
Blower Cutoff
Blower Housing
Transformer
Heat Exchanger with
Recuperator Coil
Coil Front Cover
Integrated Control Module
Transformer
54
S O )
ERVICER NLY
S O )
ERVICER NLY
I
NSTALLATION
P
ARTS
Gas Valve
Gas Manifold
Natural Gas Orifice
Propane Gas Orifice
Igniter

Flame Sensor

Rollout Limit Switch
Primary Limit Switch
Auxiliary Limit Switch
Pressure Switch
Induced Draft Blower
Door Switch