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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
1450ExpElect REV 1/30/08
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SEQUENCE OF OPERATION IMPINGER ADVANTAGE SERIAL NUMBER N28654 AND ABOVE (OVENS WITH PUSH BUTTON CONTROLS) MODEL 1421-000-E 230/400 VAC 50 HZ. 3 PHASE POWER SUPPLY Electrical power is to be supplied to the oven by a five conductor service. Brown conductor is hot. Black conductor is hot. Black conductor is hot. Blue conductor is neutral. Green conductor is ground. CONTROL BOX AUTO When the temperature in the control box reaches 120 °F ± 3 °F (48.9 °C COOL DOWN ± 1.7 °C)
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SEQUENCE OF OPERATION IMPINGER ADVANTAGE SERIAL NUMBER N28654 AND ABOVE (OVENS WITH PUSH BUTTON CONTROLS) MODEL 1454 220/380VAC 50 HZ. 3 PHASE MODEL 1455 240/415VAC 50 HZ. 3 PHASE POWER SUPPLY Electrical power is to be supplied to the oven by a five conductor service. Brown conductor is hot. Black conductor is hot. Black conductor is hot. Blue conductor is neutral. Green conductor is ground. CONTROL BOX AUTO When the temperature in the control box reaches 120 °F
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SCHEMATIC DIAGRAM MODEL 1421-000-E, SERIAL NUMBER N28654 AND ABOVE 4 Impinger I -–Adv Digital – Electric Service Manual - International
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SCHEMATIC DIAGRAM MODEL 1454, 1455 SERIAL NUMBER N28654 AND ABOVE TROUBLESHOOTING GUIDE Impinger I -–Adv Digital – Electric Service Manual - International 5
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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 Terminals are normally closed, open at 130 °F (55 °C).
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24VAC at 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. 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-ou
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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. Control transformer Check for supply voltage to primary of control transformer. If no voltage is present, trace wirin
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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
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THERMOSTAT, OVEN CAVITY HI-LIMIT – REPLACEMENT 1. Shut off power at main breaker. 2. Remove control box cover and front panel. Remove conveyor assembly and fingers from oven to aid in removal of thermostat from oven. 3. Disconnect wires from thermostat and mark for reassembly. 4. Remove thermostat from oven. 5. Reassemble in reverse order and check system operation. AIR PRESSURE SWITCH – REPLACEMENT 1. Shut off power at main breaker. 2. Rem
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CONTROL TRANSFORMER - REPLACEMENT 1. Shut power off at main breaker. 2. Remove control panel top and front cover. 3. Remove two (2) wires on primary side, note color and location. 4. Remove two (2) wires on secondary side, note color and location. 5. Remove two (2) screws from transformer base and replace assembly. 6. Reinstall in reverse order and check system operation. CONVEYOR DRIVE MOTOR - REPLACEMENT 1. Shut power off at main breaker. 2. Remove control panel top and front
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(included with the oven control) by pushing the extensions onto the four set buttons on control. F. Reassemble in reverse order and check system operation. 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
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THERMOSTAT, CONTROL BOX HI-LIMIT – REPLACEMENT 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. Impinger I -–Adv
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GENERAL VIEW ADVANTAGE SERIES LETTER PART NUMBER DESCRIPTION A 369003 Door hinge B 369110 Access window assembly C 369337 Retainer (old style) 369929 Retainer (new style) D 369828 Handle spacer E 369209 Latch & strike F 369310 Screw, 6-32 x 3/16” G 369308 Bottom, access window H 369334 Access door glass J 369309 Top, access window K 350638 Handle L 369311 Handle spacer (2 req.) M 369336 Door latch N 369906 Screw, 8-32 x 5/8” O 370110 Door assembly (solid) P 369157 Door asse
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Impinger I -–Adv Digital – Electric Service Manual - International 15
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CONTROL BOX 1421-000-E, 1454,1455 LETTER PART # DESCRIPTION A 369066 Sprocket, 10 tooth B 370373 Conveyor motor C 369507 Thermostat, cooling fan D 369025 Air pressure switch E 369119 Terminal block F 369134 Fuse, 50A G 370163 Terminal block, 5 Pole H 370387 Filter, 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
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Impinger I -–Adv Digital – Electric Service Manual - International 17
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OVEN BACK ADVANTAGE SERIES GAS AND ELECTRIC LETTER PART NUMBER DESCRIPTION A 369808 Cover, motor (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
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Impinger I -–Adv Digital – Electric Service Manual - International 19
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CONVEYOR 1450 SERIES LETTER PART NUMBER DESCRIPTION 369830 Complete conveyor assembly A 369816 Conveyor belt, 30” Wide 370092 Conveyor belt, 1 ft. section, 30” Wide 369163 Conveyor Belt, 32” Wide (units mfg after 10/2003) Conveyor Belt, 1 ft. section, 32” Wide 369362 (units mfg after 10/2003) B 369825 Retaining ring C 369813 Conveyor bearing block D 369314 Roll, conveyor, notched E 369812 Conveyor idler shaft F 369160 Conveyor pan stop 369814 Connecting link (30 inch wid
