SERVICE MANUAL
(DOMESTIC)
IMPINGER CONVEYOR OVENS
MODEL 1450,1451
WITH PUSH BUTTON CONTROLS
Lincoln Foodservice Products, Inc.
1111 North Hadley Road
P.O. Box 1229
Fort Wayne, Indiana 46801-1229
Phone: (800) 374-3004 • Fax: (260) 436-0735
Technical Service Hot Line
(800) 678-9511
1450digservice
REV 12/6/05
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SCHEMATIC DIAGRAM
MODEL 1450, 1451
SERIAL NUMBER N28654 AND ABOVE
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TROUBLESHOOTING GUIDE
IMPINGER ADVANTAGE GAS OVENS
SERIAL NUMBER N28654 AND ABOVE
(OVENS WITH PUSH BUTTON CONTROLS)
SYMPTOM
Oven fan will not run
POSSIBLE CAUSE
Incoming power supply
EVALUATION
Check circuit breaker, reset if required. Check power
plug to be sure it is firmly in receptacle. Measure
incoming power, call power co. if needed.
Check, replace if necessary.
Fuse, 10 Amp
Fuse holder
Check, replace if necessary.
Switch, oven power
Check for 120VAC supply to switch. If no voltage is
present, trace wiring back to fuse holder. Check
continuity between switch terminals. Replace switch as
needed.
Motor, main fan
Check for 120VAC supply to the motor. If no voltage is
present, trace wiring back to the switch. Check motor
for opens, shorts or grounds.
WITH POWER OFF: Turn fan blade to check for locked
rotor.
No control box cooling Incoming power supply
Check circuit breaker, reset if required. Check power
plug to be sure it is firmly in receptacle. Measure
incoming power, call power co. if needed.
Check, replace if necessary.
Fuse, 10 Amp
Fuse holder
Check, replace if necessary.
Switch, oven power
Check for 120VAC supply to switch. If no voltage is
present, trace wiring back to fuse holder. Check
continuity between switch terminals. Replace switch as
needed.
Cooling fan
Check for 120VAC supply to the cooling fan. If no
voltage is present, trace wiring back to the oven power
switch. If voltage is present and motor does not run,
check for opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor.
Check circuit breaker, reset if required. Check power
plug to be sure it is firmly in receptacle. Measure
incoming power. Call power co. if needed.
Check cooling fan thermostat (thermostat closes at
120°F and opens at 100°F). With cooling fan
thermostat pre-heated, check for continuity. If
thermostat is open, replace cooling fan thermostat.
See “Cooling fan thermostat” (NOTE: Thermostat will
remain closed if control box temperature remains
above 120°F.
No automatic control
box cooling
Incoming power supply
Cooling fan thermostat
Control box cooling
fan continues to run
Cooling fan thermostat
Oven will not heat
Main fan
Gas supply
If not operating, refer to “Oven fan will not run”.
Check for adequate gas supply to oven.
Centrifugal switch of main fan Check for 120VAC at wire #5 (input to centrifugal
motor
switch, located at 6-pin connector inside motor cover
near main fan motor) to neutral. If no voltage is present,
trace wiring back to oven power switch. If voltage is
present, check for 120VAC at wire #9 (output of
centrifugal switch) to neutral. If no voltage is present at
wire #9, and the motor is running, replace the main fan
motor.
Burner blower motor
Check for 120VAC supplied to burner blower motor. If
no voltage is present, trace wiring back to primary of
control transformer. If voltage is present and motor is
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not running, check for opens, shorts or grounds.
WITH POWER OFF: Turn motor to check for locked
rotor. Replace burner blower motor as needed.
Check for 120VAC supplied to primary of burner
transformer. If no voltage is present, trace wiring back
to centrifugal switch of main fan motor. If voltage is
present, check for 24VAC supply at transformer
secondary. If there is primary voltage but no secondary
voltage, replace burner transformer.
Check for 24VAC at motor connector, wire #19 (input to
centrifugal switch) to neutral. If no voltage is present,
trace wiring back to burner transformer. If voltage is
present, check for 24VAC at wire #20 (output of
centrifugal switch) to neutral. If no voltage is present at
wire #20 and motor is running, replace burner blower
motor.
Burner transformer
Centrifugal switch of burner
blower motor
Ignition control
Check for 24VAC supply to the ignition control. If no
voltage is present, trace wiring back to centrifugal
switch of burner blower motor. If voltage is present,
check for 24VAC at pin #3 and ground (pilot valve).
NOTE: The Honeywell ignition control has a 30 second
pre-purge (time delay) built in. If voltage is not present,
replace ignition control. If the pilot valve is energized,
check to see that the high voltage igniter circuit is also
energized. To check, disconnect the igniter lead from
the ignition control.
No pilot flame
If the ignition control is supplied with 24Vac and the
pilot valve (internal to valve assembly) and igniter
circuits are energized, visually check for pilot flame.
This may be done by opening the small inspection door
on the end of the burner, or by opening the main oven
door and looking under the lower finger housings on
the right side of the oven. If no pilot flame is visible,
check the pilot shut-off valve.
Pilot shut-off valve
Pilot tube
Check to see that the pilot shut-off valve is open (shut-
off valve is located between valve assembly and
burner).
Check for gas pressure at the pilot tube. Disconnect
pilot tube at burner and connect a manometer to pilot
tube. If no gas pressure is present during ignition,
check for blockage in pilot tube or pilot shut-off valve. If
these are clear, and there is gas supplied to the oven,
replace the gas valve.
Pilot orifice
If there is gas pressure at the pilot tube, check the pilot
orifice for obstructions. Replace as needed.
Check the burner igniter head for any obstructions, also
check for frayed or broken wire. Check spark gap (gap
should be .100 to .125 inch). If there is visible damage,
replace burner igniter.
Burner igniter
NOTE: Flame should be on
at this time
Control transformer
Pilot flame, but no
main flame
Check for 120VAC supply to the primary of the control
transformer. If no voltage is present, trace wiring back
to the oven power switch. If voltage is present, check
foe 24VAC at the transformer secondary. If there is
primary voltage, but no secondary voltage, replace
control transformer.
Oven control
Check for 24VAC supply to oven control. If no voltage
is present, trace wiring back to control transformer. If
24VAC is present, check for a read-out on the display.
If there is 24VAC supplied, but there is no read-out on
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the display, replace oven control. If there is a read-out
on the control, set the control to maximum temperature
(see Installation operations manual for temperature
adjustment). With the control set at maximum
temperature, check for 120VAC at the temperature
regulation valve. If there is voltage at the temperature
regulation valve, proceed to “Temperature regulation
valve” for next check. If there is no voltage at the
temperature regulation valve, trace wiring back to the
oven control. If there is no voltage output at the oven
control, check the read-out on the oven control. If the
control reads “PROBE FAIL”, this indicates that the
thermocouple has failed or become disconnected from
the oven control.
Check to be sure that the thermocouple is securely
connected to the oven control. If the thermocouple is
connected to the oven control, and the control indicates
“PROBE FAIL”, disconnect the thermocouple from the
oven control and measure the resistance of the
thermocouple. The thermocouple should read approx.
11Ω. If these readings are not achieved, replace the
thermocouple. If these readings are correct, proceed.
If the thermocouple checks good, but the oven control
display indicates that there is a thermocouple failure,
replace the oven control. If the oven control indicates a
temperature reading, but the oven will not heat,
proceed.
Thermocouple
Oven control
Thermocouple
WITH POWER ON AND THERMOCOUPLE
ATTACHED TO THE OVEN CONTROL: Measure the
DC millivolt output of the thermocouple. Refer to the
thermocouple chart (located in the “Removal” section of
the manual) for proper millivolt readings. If these
readings are not achieved, replace thermocouple.
If the thermocouple checks good, but there is no
120VAC output to the temperature regulation valve,
replace the oven control. If there is 120VAC output to
the temperature regulation valve, proceed.
Oven control
Temperature regulation valve Check for 120VAC supplied to the temperature
regulation valve. If voltage is present, listen for valve to
open and close. Also check for opens or shorts in the
operating coil. Replace temperature regulation valve as
needed.
Intermittent heating
Thermal/overload of main fan The main fan motor and burner blower motor are
and burner blower motors
equipped with internal thermal protection and will cease
to operate if overheating occurs. As the motors
overheat and then cool, this will cause the heating
system to cycle on and off intermittently. Improper
ventilation or lack of preventive maintenance may
cause this problem. Also, most of the problems listed
under “Oven will not heat” can cause intermittent
failure.
Conveyor will not run
Incoming power supply
Check circuit breaker, reset if required. Check power
plug to be sure it is firmly in receptacle. Measure
incoming power, call power co. if needed.
Check, replace if necessary.
Fuse, 10 Amp
Fuse holder
Check, replace if necessary.
Switch, oven power
Check for 120VAC supply to switch. If no voltage is
present, trace wiring back to fuse holder. Check
continuity between switch terminals. Replace switch as
needed.
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Control transformer
Conveyor motor
Check for 120VAC supply to the primary of the control
transformer. If no voltage is present, trace wiring back
to the oven power switch. If voltage is present, check
foe 24VAC at the transformer secondary. If there is
primary voltage, but no secondary voltage, replace
control transformer.
Check for 120VAC supply to conveyor motor at wire #6
to neutral. If no voltage is present, trace wiring back to
oven power switch. If voltage is present and motor will
not run, check the motor windings for opens or shorts.
WITH POWER OFF: Check the motor windings as
follows:
Grey to black - 38Ω approx.
Grey to blue - 38Ω approx.
Blue to black - 75Ω approx.
If any of the above fails, replace conveyor motor.
Check for shorts or grounds. Replace capacitor as
needed.
Capacitor, conveyor motor
WARNING: Capacitor has a stored charge, discharge
before testing.
Check continuity between switch terminals. Replace as
needed.
If there is 120VAC supplied to the motor, and the
motor, capacitor, and reversing switch check good,
replace the oven control.
Switch, conveyor reversing
Oven control
Conveyor motor runs,
but there is no speed
display
NOTE: Display will indicate
“BELT JAM”
Oven control
Conveyor motor
Oven control
Check for output voltage from oven control to hall effect
sensor (sensor is located in conveyor motor). Measure
voltage at the motor connector, red wire and yellow
wire. Voltage should be approx. 10VDC. If no voltage is
present, trace wiring back to oven control. If there is no
voltage present at the oven control, replace the oven
control.
If there is voltage supplied to the hall effect sensor,
check for a frequency output from the hall effect
sensor. Measure frequency across the yellow and white
wires at the motor connector. Frequency reading
should be approx. 25 – 100 Hz. If these readings are
not achieved, replace conveyor motor. If these readings
are achieved, proceed.
If the hall effect sensor readings are correct, but there
is no speed indicated on the display, replace the oven
control.
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REMOVAL, INSTALLATION & ADJUSTMENTS
IMPINGER ADVANTAGE SERIES
CAUTION!
BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE IMPINGER
OVEN BE SURE TO DISCONNECT ELECTRICAL POWER AND GAS SUPPLY
MOTOR, MAIN FAN - REPLACEMENT
1.
2.
3.
4.
5.
6.
Shut off power at main breaker.
Remove louvered motor cover from back of oven.
Remove wireway by taking out the (5) five hex screws.
Disconnect wiring from motor.
Remove the twelve (12) hex head bolts from the oven back and slide back straight out of the oven.
Remove two (2) bolts from fan hub and remove fan from motor shaft.
NOTE: Measure distance from fan blade to rear wall assembly before removal to aid in reassembly.
Remove the eight (8) hex head bolts from the motor mount and slide the motor assembly out of the oven
back.
7.
8.
9.
Remove motor by taking off motor clamp and removing the four (4) mounting nuts and washers.
Reassemble in reverse order. When motor mount assembly is set on the oven back, align motor shaft in
the center of the hole. Set fan assembly on the motor shaft.
NOTE: A. Torque specs on bolts (150 in/lb. torque)
B. It is recommended that an anti-seize compound be brushed on to the bolts around the back
and motor mount bracket before assembly.
FAN, MAIN - REPLACEMENT
1.
2.
3.
Shut off power at main breaker.
Remove back assembly. (See MOTOR, MAIN FAN)
Reinstall and locate fan so that the bottom of the fan spider is 1 1/2" from the top of the oven back cone.
(See Drawing)
FAN SPIDER
NOTE: MEASUREMENT MUST BE
MADE FROM CONE TO FAN SPIDER
FAN HUB
CONE
1 1/2 INCH
CAPACITOR, MOTOR - REPLACEMENT
1.
2.
3.
4.
Shut off power at main breaker.
Remove motor cover from back of oven.
Discharge capacitor.
Remove and replace.
COOLING FAN, CONTROL BOX - REPLACEMENT
1.
2.
3.
4.
5.
Shut off power at main breaker.
Remove control panel top and front cover.
Remove four (4) screws from the fan frame.
Disconnect cord and plug and remove fan.
Reassemble in reverse order.
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THERMOSTAT, COOLING FAN - REPLACEMENT
1.
2.
3.
4.
5.
Shut off power at main breaker.
Remove control panel top and front cover.
Remove lead wires and mark for reassembly.
Remove two (2) screws and remove thermostat.
Reassemble in reverse order.
BURNER BLOWER MOTOR - REPLACEMENT
1.
2.
3.
4.
5.
6.
Shut off power at main breaker.
Remove control panel top and front cover.
Unplug motor connector.
Remove three (3) screws from blower tube at burner housing.
Remove air shutter assembly from old motor for installation on new motor assembly.
Reassemble in reverse order and check system operation.
NOTE: Check air shutter adjustment and adjust if necessary. Set air shutter at approx. 1/4" and adjust
to get a blue flame with an occasional tip of yellow under high flame. A view port in the burner assembly
should be used to observe flame.
BLOWER WHEEL, BURNER
This is part of the burner blower motor assembly.
TO REMOVE THE BLOWER WHEEL FOR PERIODIC CLEANING:
1.
2.
3.
4.
5.
Shut off power at main breaker.
Remove control panel top and front cover.
Remove air shutter held by 3 screws.
Loosen set screws on blower wheel hub and pull straight out.
Reassemble in reverse order.
NOTE: There is no critical placement of the blower wheel on the motor shaft. Just back as far as
it will go and then spin the blower to be sure it is not rubbing.
BURNER CONTROL - REPLACEMENT
1.
2.
3.
4.
5.
Shut off power at main breaker.
Remove control panel top and front cover.
Remove wires from control, note wire numbers and location for reassembly.
Remove Two (2) screws from control and replace.
Reassemble in reverse order and check system operation.
BURNER ASSEMBLY
1.
2.
3.
4.
5.
6.
7.
8.
Shut off power at main breaker.
Shut off gas supply.
Remove control panel top and front panel.
Remove gas control valve (See "GAS CONTROL VALVE")
Disconnect pilot tube.
Remove solenoid valve. (See "TEMPERATURE REGULATION VALVE")
Remove four (4) screws that secure the burner backing plate.
Remove burner assembly from housing, the main and pilot orifice, flame target, pilot shield (main and
extension), burner ignitor can now be changed or serviced as needed.
Reassemble in reverse order. Check all gas line fittings for leaks.
9.
GAS CONTROL VALVE - REPLACEMENT
1.
2.
3.
4.
5.
Shut off power at main breaker.
Shut off gas supply.
Remove control panel top and front cover.
Disconnect the gas piping from the back of the unit.
Remove the four(4) screws from the incoming nipple mounting bracket.
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6.
7.
8.
9.
Remove incoming nipple.
Remove pilot tube assembly from control valve.
Disconnect pipe union just above solenoid valve.
Disconnect wiring from control valve making note of wire numbers and location. Remove piping from old
valve for installation on new valve.
10. Reassemble in reverse order - after assembly is complete, be sure to check manifold pressure
(3.5" W.C. NAT GAS 10" W.C. LP) and adjust if necessary. (See Section "MANIFOLD PRESSURE -
ADJUSTMENT")
NOTE: Check all gas line fittings for leaks after installation.
MANIFOLD ADJUSTMENT
SCREW LOCATED UNDER
COVER SCREW
FRONT VIEW
MANIFOLD PRESSURE
ADJUSTMENT CONNECTION
PILOT
LINE
CONNECTION
MANIFOLD ADJUSTMENT
SCREW LOCATED UNDER
COVER SCREW
TOP VIEW
MANIFOLD PRESSURE - ADJUSTMENT
1.
2.
Remove control panel top and front cover.
WITH ELECTRIC POWER AND GAS OFF: Remove the outlet pressure tap plug from the gas control
valve and install the adapter fitting and manometer.
3.
4.
Turn on electric power and gas and start-up oven.
With oven at full fire, manifold pressure should be (3.5" W.C. NAT/ 10" W.C. LP). If adjustment is
needed, remove cover screw from valve body and adjust by turning regulator screw. (C.W. to increase,
C.C.W. to decrease).
5.
Turn off electric power and gas, replace cover screw, remove manometer and adapter; Replace
pressure tap plug.
Check pressure tap for gas leaks before closing panel.
Close control panel and check system operation.
6.
7.
TEMPERATURE REGULATION VALVE - REPLACEMENT
1.
2.
3.
4.
5.
6.
7.
8.
9.
Shut off power at main breaker.
Shut off gas supply.
Remove control panel top and front cover.
Remove gas control valve (See "GAS CONTROL VALVE")
Disconnect wires from temperature regulation valve.
Remove two (2) hex nuts that hold main orifice bracket in place.
Remove temperature regulation valve assembly.
Remove piping from temperature regulation valve.
Reassemble in reverse order.
10. Check all fittings for leaks.
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BURNER IGNITOR - REPLACEMENT
1.
2.
3.
4.
5.
6.
Shut off power at main breaker.
Remove control panel top and front cover.
Remove burner assembly. (SEE "BURNER ASSY.")
Remove pilot shield and pilot shield extension.
Remove burner ignitor.
Reassemble in reverse order (spark gap approx. .100 in. or 2.5 mm)
NOTE: Be sure to reconnect burner ignitor cable to ignition control.
THERMOCOUPLE - REPLACEMENT
1.
2.
3.
Shut off power at main breaker.
Remove control panel top and front cover.
Slide thermocouple out of oven chamber.
NOTE: Remove conveyor and bottom fingers to aid in removal and installation of thermocouple.
Remove two (2) wires from temperature control. Make note of wire numbers or color and location for
reinstallation.
4.
5.
Reassemble in reverse order making sure the metal end on the thermocouple is in the wire form in the
oven chamber.
THERMOCOUPLE MEASURMENT
TEMPERATURE
200°
D.C. MILLVOLTS (APPROX.)
2.8
4.0
5.1
6.0
7.1
8.2
9.3
10.4
11.5
250°
300°
350°
400°
450°
500°
550°
600°
BURNER CONTROL TRANSFORMER - REPLACEMENT
1.
2.
3.
4.
5.
6.
Shut power off at main breaker.
Remove control panel top and front cover.
Remove two (2) wires on primary side, note color and location.
Remove two (2) wires on secondary side, note color and location.
Remove two (2) screws from transformer base and replace assembly.
Reinstall in reverse order and check system operation.
CONTROL TRANSFORMER – REPLACEMENT
See “BURNER CONTROL TRANSFORMER – REPLACEMENT”
CONVEYOR DRIVE MOTOR - REPLACEMENT
1.
2.
3.
4.
5.
6.
Shut power off at main breaker.
Remove control panel top and front cover.
Loosen set screw on conveyor drive sprocket and slide sprocket off shaft.
Disconnect motor plug.
Remove four (4) screws from motor frame, on control box side, and remove motor assembly.
Reassemble in reverse order making sure to align chain sprockets and adjust motor for proper chain
tension (1/2" SAG).
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REVERSING CONVEYOR DIRECTION
All ovens leaving our plant are wired to operate conveyors from left to right. To reverse conveyor direction, use
the following procedure.
1.
2.
3.
Shut off power at oven switch.
Set conveyor reversing switch in the other position.
Turn oven “on” and check for proper operation.
MAIN ORIFICE - REPLACEMENT
1.
2.
3.
4.
5.
6.
7.
Shut off power at main breaker.
Remove control panel top and front panel.
Remove gas control valve assy.
Remove two (2) nuts from burner orifice bracket.
Disconnect pipe union.
Remove assembly and replace main orifice.
Reassemble in reverse order and check system operation. NOTE: Check all gas line fittings for leaks.
PILOT ORIFICE - REPLACEMENT
1.
2.
3.
4.
5.
6.
Shut off power at main breaker.
Shut off gas supply.
Remove burner assembly (See "Burner Assembly").
Remove pilot line from pilot orifice.
Remove pilot orifice from burner ignitor.
Reassemble in reverse order. NOTE: Check all gas line fittings for leaks.
ON-OFF SWITCH - REPLACEMENT
1.
2.
3.
4.
5.
6.
Shut off power at main breaker.
Remove control box cover.
Remove access cover.
Depress spring clips on side of switch and push out.
Remove wires from back of switch, note wire number and location.
Reassemble in reverse order and check system operation.
NOTE: Make sure switch housing is fully seated in control box housing.
OVEN CONTROL – REPLACEMENT
A.
B.
C.
D.
E.
Shut off power at main breaker.
Remove control box cover and front panel.
Remove all wiring connections and mark for reassembly.
Remove oven control by pulling control from the mounting pins. Remove control from oven.
Before installing new oven control, set voltage jumper (located at the bottom center of the oven
control) to the proper voltage (120V/240V) position. Install the four pushbutton extensions
(included with the oven control) by pushing the extensions onto the four set buttons on control.
Reassemble in reverse order and check system operation.
F.
G.
Set the oven control for the proper operating mode. The 1400 series ovens use a single temperature
control system. The oven control must be set to the proper operating mode. Set the control as follows:
With the oven power switch “off”, depress the “time” and “up” buttons and turn the oven “on”. Control
will indicate “Imp I or Imp II” Release the buttons, The control will indicate “Temp to store”. Press the
“up” or “down” button until “Imp I” appears on the display. Press the “temp” button. The control is now
set for single burner operation.
FUSE HOLDER – REPLACEMENT
1.
2.
3.
4.
5.
Shut off power at main breaker.
Remove control box cover.
Remove all wiring from fuse holder and mark for reassembly.
Remove mounting nut for fuse holder and remove fuse holder.
Reassemble in reverse order and check system operation.
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GENERAL VIEW
ADVANTAGE SERIES
LETTER
PART NUMBER
DESCRIPTION
Door hinge
Access window assembly
Retainer (old style)
Retainer (new style)
Handle spacer
A
B
C
369003
369110
369337
369929
369828
369209
369310
369308
369334
369309
350638
369311
369336
369906
370110
369157
1534
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
S
T
Latch & strike
Screw, 6-32 x 3/16”
Bottom, access window
Access door glass
Top, access window
Handle
Handle spacer (2 req.)
Door latch
Screw, 8-32 x 5/8”
Door assembly (solid)
Door assembly (with window)
Finger support assembly
Support bracket pin
Strike assembly
369057
369643
1009
Oven top
U
V
W
X
Y
Z
*
AA
BB
CC
DD
EE
FF
GG
HH
JJ
KK
LL
369062
369140
369903
369141
369139
369058
369211
369203
369749
369204
369373
369748
369328
369052
369030
369904
369053
Top, control box
Compression spring
Washer, flat
Conveyor hold down bracket
Shoulder screw
Baffle, inlet and outlet
Thumb screw (not shown)
Stud, wing head
Chain cover kit (includes AA, CC)
Split ring retainer
Receptacle, snap –in
Bracket, chain cover
Leg, stand
Adjustable leg
Caster, 6”
Insulation holder assembly
Finger housing
Columnating plates –
see installation operations manual
Finger cover
Crumb pan, internal
Window frame, bottom
Glass, access window
Window frame, top
MM
NN
OO
PP
369055
369218
369926
369925
369927
QQ
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CONTROL BOX – 1450, 1451
S/N N28654 and ABOVE
LETTER
PART #
369263
369344
369398
370059
369072
369099
369144
369202
369076
369075
369142
369366
369399
369400
370362
370368
369158
369124
369393
370359
369507
369331
369531
370352
370418
370355
370354
369805
370363
369537
369129
369166
353014
DESCRIPTION
Gas Valve
A
B
C
D
E
Pilot Shut Off Valve
Solenoid Valve Nat/LP
Manifold, Burner
Main Orifice, Nat.
Main Orifice, L.P.
Pilot Shield Extension
Pilot Shield, Main
Burner Igniter
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
Y
Flame Sensor
Flame Target
Burner Blower Motor
Air Shutter
Plate, Air Shutter
Thermocouple, Type K
Conveyor Motor
Sprocket, Drive
Cooling Fan
Ignition Control
Reversing Switch
Control Box Thermostat
Finger Guard, Cooling Fan
Transformer, 24 VAC
Capacitor, Conveyor motor
Top, Control Box
Control, Oven
Facia, Front
Switch, On-Off
Front Cover
Power Cord
Fuse Holder
Fuse, 10 A
Ground Lug
Z
AA
BB
CC
DD
EE
FF
GG
16
Impinger I – 1450 Series Service Manual - Domestic
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Impinger I – 1450 Series Service Manual - Domestic
17
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OVEN BACK
ADVANTAGE SERIES
GAS AND ELECTRIC
LETTER
A
PART NUMBER
DESCRIPTION
369808
370140
369800
369214
369033
369215
369192
369306
369646
369647
369213
369547
369287
369315
369122
Cover, motor (gas ovens)
Cover, motor (electric ovens)
Motor, main fan (60 Hz.)
Motor, main fan (50 Hz.)
Motor clamp
Motor support assembly
Capacitor, 7.5 MFD
Oven back assembly, gas oven
Stand-off
Inlet panel
Main fan
Bracket, thermostat
Heating element, 208V
Heating element, 220V
Heating element, 240V
B
C
D
E
F
G
H
J
K
M
18
Impinger I – 1450 Series Service Manual - Domestic
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Impinger I – 1450 Series Service Manual - Domestic
19
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CONVEYOR
1450 SERIES
LETTER
A
PART NUMBER
DESCRIPTION
Complete conveyor assembly
Conveyor belt
Conveyor belt, 1 foot section
Retaining ring
Conveyor bearing block
Roll, conveyor, notched
Conveyor idler shaft
Conveyor pan stop
Connecting link
Conveyor drive shaft
Roller chain sprocket
Crumb pan
Conveyor frame
Drive chain
369830
369816
370092
369825
369813
369314
369812
369160
369814
369811
369161
369806
370050
369162
B
C
D
E
F
G
H
J
K
L
M
20
Impinger I – 1450 Series Service Manual - Domestic
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Impinger I – 1450 Series Service Manual - Domestic
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22
Impinger I – 1450 Series Service Manual - Domestic
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Impinger I – 1450 Series Service Manual - Domestic
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24
Impinger I – 1450 Series Service Manual - Domestic
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