Lincoln Foodservice 1421-000-E Service Manual Download

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1450ExpElect

REV 1/5/07

SERVICE MANUAL

(INTERNATIONAL)

IMPINGER CONVEYOR OVENS

MODEL 1421-000-E, 1454, 1455

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

www.lincolnfp.com

Summary of Contents for 1421-000-E

Page 1: ...MODEL 1421 000 E 1454 1455 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 www lincolnfp com ...

Page 2: ... supplies line voltage to the heat circuit and to the primary of the oven control transformer HEAT CIRCUIT Closing the oven power switch supplies line voltage through the main fan air pressure switch through the normally closed oven cavity hi limit thermostat to the oven control TEMPERATURE CONTROL Closing the oven power switch supplies line voltage through the EMI filter to the primary of the con...

Page 3: ...r switch also supplies line voltage to the heat circuit and to the primary of the oven control transformer HEAT CIRCUIT Closing the oven power switch supplies line voltage through the main fan air pressure switch through the normally closed oven cavity hi limit thermostat to the oven control TEMPERATURE CONTROL Closing the oven power switch supplies line voltage to the primary of the control trans...

Page 4: ...Impinger I Adv Digital Electric Service Manual International 4 MODEL 1421 000 E SERIAL NUMBER N28654 AND ABOVE ...

Page 5: ...Impinger I Adv Digital Electric Service Manual International 5 SCHEMATIC DIAGRAM MODEL 1454 1455 SERIAL NUMBER N28654 AND ABOVE TROUBLESHOOTING GUIDE ...

Page 6: ...ck 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 ...

Page 7: ...cted 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 the...

Page 8: ...e 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 display NOTE Display will indicate BELT JAM Oven control Check for output voltage from oven control to hall effe...

Page 9: ...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 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 HUB CONE ...

Page 10: ...itches used Remove air pressure switch from its mount 6 Reassemble in reverse order and check system operation 7 To adjust air pressure switch remove cover from switch to expose adjusting screw To increase sensitivity turn screw counter clockwise To decrease sensitivity turn screw clockwise THERMOCOUPLE TYPE K REPLACEMENT 1 Shut off power at main breaker 2 Remove control panel top and front cover ...

Page 11: ...CEMENT 1 Shut off power at main breaker 2 Remove control box cover and front panel 3 Disconnect wires from reversing switch and mark for reassembly 4 Remove mounting nut and remove reversing switch 5 Reassemble in reverse order and check system operation REVERSING CONVEYOR DIRECTION All ovens leaving our plant are wired to operate conveyors from left to right To reverse conveyor direction use the ...

Page 12: ...on and operations manual 3 Remove conveyor belt from conveyor Remove drive sprocket from drive shaft if required 4 Move shaft toward end of conveyor and shaft with bearings will now slip out of holding bracket 5 Replace bearing and reassemble in reverse order HEAT CONTACTOR REPLACEMENT 1 Shut off power at main breaker 2 Remove control box cover and front panel 3 Remove all wiring from contactor an...

Page 13: ...1 Shut off power at main breaker 2 Remove control box cover and front panel 3 Remove wiring from thermostat and mark for reassembly 4 Remove mounting screws and remove thermostat 5 Reassemble in reverse order and check system operation NOTE Be sure to press reset button on new thermostat to set for operation ...

Page 14: ...upport assembly R 369057 Support bracket pin S 369643 Strike assembly T 1009 Oven top U 369062 Top control box V 369140 Compression spring W 369903 Washer flat X 369141 Conveyor hold down bracket Y 369139 Shoulder screw Z 369058 Baffle inlet and outlet 369211 Thumb screw not shown AA 369203 Stud wing head BB 369749 Chain cover kit includes AA CC CC 369204 Split ring retainer DD 369373 Receptacle s...

Page 15: ...Impinger I Adv Digital Electric Service Manual International 15 ...

Page 16: ...ilter EMI I 370485 Contactor mercury J 369838 Thermostat control box hi limit K 357107 Fuse holder L 369014 Fuse 10A M 369378 Cooling fan N 369331 Finger guard O 370359 Reversing switch P 369368 Thermostat oven cavity hi limit Q 370388 Cover access R 370360 Capacitor Conveyor motor S 4000054 Ground lug T 369125 Terminal block 2 pole U 369427 Transformer control V 370362 Thermocouple type K W 37036...

Page 17: ...Impinger I Adv Digital Electric Service Manual International 17 ...

Page 18: ...gas ovens 370140 Cover motor electric ovens B 369214 Motor main fan 50 Hz C 369033 Motor clamp D 369215 Motor support assembly E 369192 Capacitor 7 5 MFD F 369306 Oven back assembly gas oven G 369646 Stand off H 369647 Inlet panel J 369213 Main fan K 369547 Bracket thermostat M 369287 Heating element 208V 369315 Heating element 220V 369122 Heating element 240V ...

Page 19: ...Impinger I Adv Digital Electric Service Manual International 19 ...

Page 20: ...A 369816 Conveyor belt 370092 Conveyor belt 1 foot section B 369825 Retaining ring C 369813 Conveyor bearing block D 369314 Roll conveyor notched E 369812 Conveyor idler shaft F 369160 Conveyor pan stop G 369814 Connecting link H 369811 Conveyor drive shaft J 369161 Roller chain sprocket K 369806 Crumb pan L 370050 Conveyor frame M 369162 Drive chain ...

Page 21: ...Impinger I Adv Digital Electric Service Manual International 21 ...

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