Lincoln Impinger Conveyor Ovens 1450 User Manual

SERVICE MANUAL  
(DOMESTIC)  
IMPINGER CONVEYOR OVENS  
MODEL 1450,1451  
WITH PUSH BUTTON CONTROLS  
Lincoln Foodservice Products, LLC  
1111 North Hadley Road  
Fort Wayne, Indiana 46804  
United States of America  
Phone: (800) 374-3004  
U.S. Fax: (888) 790-8193 • Int’l Fax: (260) 436-0735  
Technical Service Hot Line  
(800) 678-9511  
1450digservice  
REV 1/30/08  
SCHEMATIC DIAGRAM  
MODEL 1450, 1451  
SERIAL NUMBER N28654 AND ABOVE  
Impinger I – 1450 Series Service Manual - Domestic  
3
TROUBLESHOOTING GUIDE  
IMPINGER ADVANTAGE GAS OVENS  
SERIAL NUMBER N28654 AND ABOVE  
(OVENS WITH PUSH BUTTON CONTROLS)  
SYMPTOM  
POSSIBLE CAUSE  
EVALUATION  
Oven fan 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.  
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  
If not operating, refer to “Oven fan will not run”.  
Gas supply  
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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Impinger I – 1450 Series Service Manual - Domestic  
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.  
Burner transformer  
Centrifugal switch of burner  
blower motor  
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.  
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  
Pilot flame, but no  
main flame  
Control transformer  
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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Impinger I – 1450 Series Service Manual - Domestic  
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.  
Thermocouple  
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.  
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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Impinger I – 1450 Series Service Manual - Domestic  
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.  
Switch, conveyor reversing  
Oven control  
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.  
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.  
Impinger I – 1450 Series Service Manual - Domestic  
7
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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Impinger I – 1450 Series Service Manual - Domestic  
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.  
Impinger I – 1450 Series Service Manual - Domestic  
9
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.  
6.  
7.  
Check pressure tap for gas leaks before closing panel.  
Close control panel and check system operation.  
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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Impinger I – 1450 Series Service Manual - Domestic  
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.  
Reassemble in reverse order making sure the metal end on the thermocouple is in the wire form in the  
oven chamber.  
4.  
5.  
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).  
Impinger I – 1450 Series Service Manual - Domestic  
11  
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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Impinger I – 1450 Series Service Manual - Domestic  
13  
GENERAL VIEW  
ADVANTAGE SERIES  
LETTER  
PART NUMBER  
DESCRIPTION  
A
B
C
369003  
369110  
369337  
369929  
369828  
369209  
369310  
369308  
369334  
369309  
350638  
369311  
369336  
369906  
370110  
369157  
1534  
Door hinge  
Access window assembly  
Retainer (old style)  
Retainer (new style)  
Handle spacer  
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
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  
Z
*
AA  
BB  
CC  
DD  
EE  
FF  
GG  
HH  
JJ  
KK  
LL  
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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Impinger I – 1450 Series Service Manual - Domestic  
Impinger I – 1450 Series Service Manual - Domestic  
15  
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  
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  
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
Y
Z
AA  
BB  
CC  
DD  
EE  
FF  
GG  
Facia, Front  
Switch, On-Off  
Front Cover  
Power Cord  
Fuse Holder  
Fuse, 10 A  
Ground Lug  
16  
Impinger I – 1450 Series Service Manual - Domestic  
Impinger I – 1450 Series Service Manual - Domestic  
17  
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  
Impinger I – 1450 Series Service Manual - Domestic  
19  
CONVEYOR  
1450 SERIES  
LETTER  
A
PART NUMBER  
DESCRIPTION  
369830  
369816  
370092  
369163  
369362  
Complete conveyor assembly  
Conveyor belt, 30” Wide  
Conveyor belt, 1 ft. section, 30” Wide  
Conveyor Belt, 32” Wide (units mfg after 10/2003)  
Conveyor Belt, 1 ft. section, 32” Wide  
(units mfg after 10/2003)  
Retaining ring  
Conveyor bearing block  
Roll, conveyor, notched  
Conveyor idler shaft  
B
C
D
E
F
369825  
369813  
369314  
369812  
369160  
369814  
369005  
369811  
369161  
369806  
370050  
370421  
Conveyor pan stop  
G
Connecting link (30 inch wide belt)  
Connecting link (32 inch wide belt)  
Conveyor drive shaft  
Roller chain sprocket  
Crumb pan  
H
J
K
L
Conveyor frame  
Drive chain  
M
20  
Impinger I – 1450 Series Service Manual - Domestic  
Impinger I – 1450 Series Service Manual - Domestic  
21  
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Impinger I – 1450 Series Service Manual - Domestic  
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Impinger I – 1450 Series Service Manual - Domestic  
23  
Lincoln Foodservice Products, LLC  
1111 North Hadley Road  
Fort Wayne, Indiana 46804  
United States of America  
Telephone: (260) 459-8200  
U.S. Facsimile: (888) 790-8193  
Int’l Facsimile: (260) 436-0735  
Technical Service Hotline: (800) 678-9511  

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