Lincoln 1400 ELECTRIC Service Manual
PARTS & SERVICE MANUAL
Impinger Advantage Electric w/ Push Button Controls
1450 Series - Domestic
MODELS:
Please note that the model numberi ng system changed
March 2007. The chart below shows the old model
numbering system and its matching new model number.
Old Model Number
1452
1453
New Model Number
→
1452-00z-U-Kxxxx
→
1453-00z-U-Kxxxx
→
P/N: L371079
REV: 10.21.09
Lincoln Foodservice Products, LLC
1111 North Hadley Road
Fort Wayne, Indiana 46804
Telephone: 260.459.8200
Fax: 888.790.8193
Technical Support: 800.678.9511
lincolnfp.com
MODEL NUMBER KEY
EXAMPLE: 1452-B00-E-K1801
14 52 - B 00 - E - K1801
Agency Code (i.e. CE & RoHS combined)
Custom Configuration Code (i.e. General Market Version)
Language Code
Indicates change to base assembly (i.e. Natural Gas, 230V, 1 phase, 50 Hz)
Oven Platform Size (i.e. Impinger I)
CODE LANGUAGE COUNTRY CODE LANGUAGE COUNTRY
0 English Dom. & Int. Default N Finnish Finland
B French France/Luxembourg O Restricted --C German Germany P Norwegian Norway
D Italian Italy Q English Japan
E Spanish Spain R Swedish Sweden
F English UK/India/Africa/Hungary S English Australia
G Spanish Mexico/Latin America T Mandarin China
H Portuguese Portugal U Restricted ---
I Not Used --- V English Pacific Rim/Korea
J Danish Denmark W English Middle East
K Dutch & French Belgium X Not Used ---
L Dutch Netherlands Y Not Used --M Greek Greece
Z Not Used ---
AGENCY CODE TABLE
CODE AGENCY
N No Agency
E CE & RoHS compliance combined
U US & Canada compliance only
A Advantage style oven to be phased-out
B Australia AGA
Panel Setup Code
2
Impinger I – 1450 Series Electric Service Manual - Domestic
SEQUENCE OF OPERATION
IMPINGER ADVANTAGE ELECTRIC
SERIAL NUMBER N28654 AND ABOVE
(OVENS WITH PUSH BUTTON CONTROLS)
MODEL 1452 120VAC 60 HZ. 3 PHASE
MODEL 1453 120VAC 60 HZ. 3 PHASE
POWER SUPPLY Electrical power is to be supplied to the oven by a four conductor
service.
Black conductor is hot.
Red conductor is hot.
Orange conductor is hot.
Green conductor is ground.
CONTROL BOX AUTO
COOL DOWN
MAIN FAN CIRCUIT Electrical power is permanently supplied through six 50 A fuses to the
HEAT CIRCUIT Closing the oven power switch supplies line voltage through the main
TEMPERATURE CONTROL Closing the oven power switch supplies line voltage to the primary of
CONVEYOR DRIVE Closing the oven power switch supplies line voltage to the conveyor
Impinger I – 1450 Series Electric Service Manual - Domestic
When the temperature in the control box reaches 120°F ± 3°F (48.9°C
± 1.7°C), the cooling fan thermostat will switch power to the control
box cooling fan. The thermostat will interrupt power to the cooling fan
when the control box temperature falls to 100°F ± 3°F (37°C ± 1.7°C).
normally open contacts of the heat relay. Power is also supplied,
through the 10 Amp motor and control fuse, through the normally
closed control box hi-limit thermostat, to the normally open oven power
switch. Power is also supplied to the control box cooling fan
thermostat. Closing the oven power switch supplies line voltage to the
main fan motor. Closing the oven power switch also supplies line
voltage to the heat circuit and to the primary of the oven control
transformer.
fan air pressure switch, through the normally closed oven cavity hi-limit
thermostat, to the oven control.
the control transformer and through the air pressure switch and oven
cavity hi-limit, to the oven control. Secondary voltage, 24VAC, is
supplied to the oven control. The oven control is set to desired
temperature. The thermocouple will provide varying millivolts to the
oven control. The oven control supplies line voltage to the heat
contactor at intermittent intervals to maintain desired temperature. The
display on the oven control will indicate when the heat contactor is
energized.
NOTE: The display also indicates oven temperature.
motor and to the primary of the control transformer. Secondary
voltage, 24VAC, is supplied to the oven control. Setting the oven
control to the desired time outputs voltage, through a reversing switch,
to the conveyor motor.
NOTE: The conveyor system uses a hall effect sensor and magnet to
prove operation of the conveyor motor. If the motor is not running,
“BELT JAM” is indicated on the display.
3
SCHEMATIC DIAGRAM
MODEL 1452, 1453
SERIAL NUMBER N28654 AND ABOVE
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Impinger I – 1450 Series Electric Service Manual - Domestic
TROUBLESHOOTING GUIDE
IMPINGER ADVANTAGE ELECTRIC 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 required.
Fuse, 10 Amp Check, replace if necessary.
Fuse holder Check, replace if necessary.
Thermostat, control
box hi-limit
Terminals are normally closed, open at 130°F (55°C). If
open, reset and test for proper operation. If thermostat
will not hold, and control box temperature is not
exceeding 130°F (55°C), replace thermostat.
Switch, oven power Check for line voltage supplied 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 line voltage supplied to motor. If no voltage is
present, trace wiring back to oven power 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 required.
Fuse, 10 Amp Check, replace if necessary.
Fuse holder Check, replace if necessary.
Switch, oven power Check for line voltage supplied 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 supply voltage to the cooling fan. If no
voltage is present, trace wiring back to the fuse holder.
If voltage is present and motor does not run, check
motor for opens shorts or grounds.
WITH POWER OFF: Check for locked rotor.
No automatic 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 required.
Cooling fan thermostat Check cooling fan thermostat (thermostat closes at
120°F and opens at 100°F). With cooling fan thermostat
pre-heated, check for continuity.
Control box cooling fan
continues to run
Cooling fan thermostat See “Cooling fan thermostat” (NOTE: Thermostat will
remain closed if control box temperature remains above
120°F.
Oven will not heat Main fan If not operating, refer to “Oven fan will not run”
Air pressure switch Check air switch terminals for supply voltage to
terminals NO and COM. If voltage is present on one side
only, check for air tube blockage or misalignment. If
these are okay, adjust air pressure switch or replace
switch as needed.
Oven cavity hi-limit
thermostat
Terminals are normally closed, opens at 660°F (350°C).
If open, reset and test oven for proper operation. If
thermostat will not hold for maximum temperature, and
oven is not exceeding control setting, check for proper
location of the capillary bulb in its spring holder. If above
checks are okay, replace hi-limit thermostat.
Control transformer Check for supply voltage to primary of control
Impinger I – 1450 Series Electric Service Manual - Domestic
5
transformer. If no voltage is present, trace wiring back to
oven power switch. If voltage is present, check for
24VAC at transformer secondary. If there is primary
voltage, but no secondary voltage, replace control
transformer.
Oven control Chec k for 24VAC supply to oven control. If no voltage is
present, trace wiring back to control transformer. Check
for supply voltage to oven control. If no voltage is
present, trace wiring back to hi-limit thermostat. If
voltage is present, check for a read-out on the display. If
there is no read-out on the display, replace oven control.
If there is a read-out on the display, set the oven control
to maximum temperature (see installation operations
manual for temperature adjustment). With the oven
control at maximum temperature, check for supply
voltage to the heat contactor. If there is voltage at the
heat contactor, proceed to “Heat contactor “. If there is
no voltage at the heat contactor, 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
oven control reads “PROBE FAIL” this indicates that the
thermocouple has failed or become disconnected from
the oven control
Thermocouple Check to see that the thermocouple is securely
connected to the oven control. If the thermocouple is
connected to the oven control, and the display 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.
Oven control 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 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.
Oven control If the thermocouple ch ecks good, but there is no supply
voltage output to the heat contactor, replace the oven
control. If there is supply voltage output to the heat
contactor, proceed.
Heat contactor(s) Check for supply voltage to the heat contactor. If voltage
is present, listen for contacts to open and close. Also
check for opens or shorts in the operating coil. Replace
heat contactor as needed.
Intermittent heating Thermal/overload of main fan
motor
The main fan motor is equipped with internal thermal
protection and will cease to operate if overheating
occurs. As the motor overheats and 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 required.
Fuse, 10 Amp Check, replace if necessary.
6
Impinger I – 1450 Series Electric Service Manual - Domestic
Fuse holder Check, replace if necessary.
Switch, oven power Check for line voltage supplied to switch. If no voltage
is present, trace wiring back to fuse holder. Check
continuity between switch terminals. Replace switch as
needed.
Control transformer Check for supply voltage to primary of control
transformer. If no voltage is present, trace wiring back to
oven power switch. If voltage is present, check for
24VAC at transformer secondary. If there is primary
voltage, but no secondary voltage, replace control
transformer.
Conveyor motor Check for supply voltage to the conveyor motor at
terminal J3 #2 to line 2. If no voltage is present, trace
wiring back to oven power switch. If voltage is present,
but the motor will not run, check the motor windings for
opens or shorts. If any of the above checks fail, replace
conveyor motor.
Capacitor, conveyor motor Check for shorts or grounds. Replace capacitor as
needed.
WARNING: Capacitor has a stored charge, discharge
before testing.
Switch, conveyor reversing Check continuity between switch terminals. Replace
switch as needed.
Oven control If there is voltage 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
NOTE: Display will indicate
“BELT JAM”
display
Oven control Check for output voltage from oven control to hall effect
sensor (sensor is located in the 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 output at the oven control, replace
oven control.
Conveyor motor 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 in
the motor connector. Frequency reading should be
approx. 25-100 Hz. If these readings are not achieved,
replace conveyor motor. If the readings are achieved,
proceed.
Oven control 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 Electric Service Manual - Domestic
7
REMOVAL, INSTALLATION & ADJUSTMENTS
IMPINGER ADVANTAGE SERIES
CAUTION:
!
BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE OVEN,
DISCONNECT ELECTRICAL POWER AND GAS SUPPLY. FAILURE TO DO SO
COULD RESULT IN SERIOUS INJURY!
MOTOR, MAIN FAN - REPLACEMENT
1. Shut off power at main breaker.
2. Remove louvered motor cover from back of oven.
3. Remove wireway by taking out the (5) five hex screws.
4. Disconnect wiring from motor.
5. Remove the twelve (12) hex head bolts from the oven back and slide back straight out of the oven.
6. 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.
7. Remove the eight (8) hex head bolts from the motor mount and slide the motor assembly out of the oven
back.
8. Remove motor by taking off motor clamp and removing the four (4) mounting nuts and washers.
9. Reassemble in reverse order. When motor mount a ssembly is set o n 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. Shut off power at main breaker.
2. Remove back assembly. (See MOTOR, MAIN FAN)
3. 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
CAPACITOR, MOTOR - REPLACEMENT
1. Shut off power at main breaker.
2. Remove motor cover from back of oven.
3. Discharge capacitor.
4. Remove and replace.
COOLING FAN, CONTROL BOX - REPLACEMENT
1. Shut off power at main breaker.
2. Remove control panel top and front cover.
3. Remove four (4) screws from the fan frame.
4. Disconnect cord and plug and remove fan.
5. Reassemble in reverse order.
8
1 1/2 INCH
Impinger I – 1450 Series Electric Service Manual - Domestic
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