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SERVICE MANUAL
(INTERNATIONAL)
IMPINGER CONVEYOR OVENS
MODEL SERIES 1000 & 1200
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
1000serviceexp REV: 1/5/07
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TABLE OF CONTENTS TABLE OF CONTENTS..............................................................................................................................................2 SEQUENCE OF OPERATIONS 1002/1003...............................................................................................................3 SEQUENCE OF OPERATIONS 1106........................................................................................................................4 SEQUENCE OF OPERATIONS
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SEQUENCE OF OPERATIONS 1002/1003 MODEL 1002 - 240VAC - 50HZ - NATURAL GAS MODEL 1003 - 240VAC - 50HZ - L.P. GAS POWER SUPPLY Electrical Power to be supplied to the Oven by a three conductor service. Black conductor is Hot Red conductor is Neutral Green conductor is Ground CONTROL BOX When the temperature in the Control Box reaches 120°F + AUTO COOL DOWN 3°, the Cooling Fan Thermostat will switch power to the Control Box Cooling Fan. The Thermostat will interrupt power to the Cooling
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TIME TEMP DISPLAY The Time/Temp Display is energized when the Fan Switch is closed, supplying 120 VAC to the primary of the 12.6 volt Transformer. The secondary output of the transformer, normally 13 to 14 VAC (depending on input), with a center tap, is supplied to terminals 1,2, and 3 of the Time/Temp Display. The center tap is terminal 2. The display works on a balanced input and center tap voltage to each leg must be 1/2 the total reading. The speed side of the Time/Temp. Display use
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increase or decrease as the DC voltage from the board increases or decreases respectively. As the motor turns, it drives both the reducer gearbox and the Tach. Generator. The Tach. Generator is a DC voltage generator, which supplies a voltage to the DC motor control board and is used as a reference for maintaining a constant conveyor speed. TlME/TEMP DISPLAY The Time/Temp. Display is energized when the Fan Switch is closed, supplying 120 VAC to the primary of the 12.6 volt Transformer. Th
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CONVEYOR DRIVE Closing the Fan Switch and the normally open Conveyor Switch supplies 120 VAC (S/N 100 to 4389) through a 3A Fuse, to the Motor Control Board. AC volts are converted to D.C. volts and are supplied to the Conveyor Motor at board terminals A1 and A2 through a D.P.D.T. Reversing Switch. Adjustment of the Speed Control Potentiometer (500 ohm, 10 turn) will change resistance at terminals S1, S2, and S3 varying the D.C. voltage to the Conveyor Motor. The speed of the Conveyor Motor
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14 VAC) with a center tap, and supplies power to the Time/Temp Display. The voltage from each leg of the Transformer' s secondary to the center tap should be one half of the secondary voltage BURNER CIRCUIT Closing the normally open Burner Switch supplies 220 VAC, through the gas pressure-proving switch, and through the Main Fan Air Pressure Switch, to the Ignition Control. The combustion motor relay is energized, its normally open contacts now close, supplying120 VAC to the combustion mot
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Fan, and the Heat and Conveyor Switches. TRANSFORMER (12.6 Upon closure of the Fan Switch, 120 VAC is supplied to the primary of the 12.6 VAC VAC) Transformer. The Transformer steps the voltage down to 12.6 VAC (normally 13 to 14 VAC) with a center tap, and supplies power to the Time/Temp Display. The voltage from each leg of the Transformer' s secondary to the center tap should be one half of the secondary voltage. HEAT CIRCUIT Closing the Fan Switch and the normally open Heat Switch supp
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oven start and cool down relay. Its normally open contacts close, supplying 220 VAC to the Burner Switch and enabling the 20-minute Time Delay module. The 20-minute Time Delay module supplies 120 VAC to the oven fan motor relay, these normally open contacts now close, supplying 220 VAC to the Oven Fan Motor. TRANSFORMER(12.6V Upon closure of the Fan Switch, 120 VAC is supplied to the primary of the 12.6 VAC AC) Transformer. The Transformer steps the voltage down to 12.6 VAC (normally 13 to
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SEQUENCE OF OPERATIONS 1042 / 1043 / 1242 / 1243 MODEL 1042 - 240V - 50HZ - NATURAL GAS MODEL 1043 - 240V - 50HZ - L.P. GAS MODEL 1242 - 240V - 50HZ - NATURAL GAS/DUAL BELT MODEL 1243 - 240V - 50HZ - L.P.GAS/DUAL BELT POWER SUPPLY Electrical Power to be supplied to the Oven by a three conductor service. Black conductor is Hot Red conductor is Neutral Green conductor is Ground CONTROL BOX AUTO When the temperature in the Control Box reaches 120°F + 3°, the Cooling Fan COOL DOWN Thermo
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TIME/TEMP The Time/Temp. Display is energized when the Fan Switch is closed, supplying 120 DISPLAY(S/N Q14790 & VAC to the primary of the12.6 volt Transformer. The secondary output of the Below, 1200 series S/N transformer, normally 13 to 14 VAC (depending on input), with a center tap, is Q14973 & Below, 1000 supplied to terminals 1,2, and 3 of the Time/Temp. Display. The center tap is series) terminal 2. The display works on a balanced input and center tap voltage to each leg must be 1/2
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SCHEMATIC / 1002, 1003 12 Impinger I -–1000 Series Service Manual - International
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SCHEMATIC / 1006 TO SERIAL NUMBERS Q14279 Impinger I -–1000 Series Service Manual - International 13
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SCHEMATIC / 1028, 1029, S/N Q19071 & BELOW 14 Impinger I -–1000 Series Service Manual - International
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SCHEMATIC / 1028, 1029, S/N Q19078 & ABOVE Impinger I -–1000 Series Service Manual - International 15
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SCHEMATIC / 1030, TO S/N Q17170 16 Impinger I -–1000 Series Service Manual - International
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SCHEMATIC / 1030, S/N Q17171 & ABOVE Impinger I -–1000 Series Service Manual - International 17
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SCHEMATIC / 1032. S/N Q19077 & BELOW 18 Impinger I -–1000 Series Service Manual - International
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SCHEMATIC / 1032, S/N Q19078 & ABOVE Impinger I -–1000 Series Service Manual - International 19
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SCHEMATIC / 1033, 1034, 1046, 1047 20 Impinger I -–1000 Series Service Manual - International
