Lincoln Impinger 1002 Service Manual Download Page 1

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REV: 1/5/07

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

Summary of Contents for Impinger 1002

Page 1: ...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 43...

Page 2: ...SHOOTING GUIDE 1000 1200 SERIES ELECTRIC OVENS 39 TROUBLESHOOTING GAS OVENS 1033 1034 1046 1047 46 REMOVAL INSTALLATION ADJUSTMENTS 53 MODEL SERIES 1000 1200 53 PARTS MODEL SERIES 1000 1200 GENERAL 80...

Page 3: ...ransformer secondary supplies 24 VAC to the Relay Coil the normally open contacts close within 30 seconds and the normally open Centrifugal Switch When the Relay contacts close the Burner Blower Motor...

Page 4: ...Step Down Transformer The transformer steps the voltage down to 120VAC for the control circuit 120 VAC is supplied to the coil of the Main Fan Relay The coil of the Relay is energized the normally op...

Page 5: ...tor is Ground MAIN FAN CIRCUIT Electrical power is permanently supplied through 3 50A fuses to the normally open contacts of the Mercury Contactor Power is also supplied through 1 10A fuse to the norm...

Page 6: ...leg must be 1 2 the total reading The speed side of the Time Temp Display uses a slotted disc cemented to tach coupling to break the infra red light beam of the optical switch mounted on gear motor pr...

Page 7: ...veyor speed Time Temp Display Q17171 Above See Page 9 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 outpu...

Page 8: ...aintaining a constant conveyor speed TIME TEMP DISPLAY The Time Temp Display is energized when the Fan Switch is closed supplying 120 VAC to the primary of the12 6 volt Transformer The secondary outpu...

Page 9: ...me monitor proves main flame operation in the 1033 1034 models CONVEYOR DRIVE Closing the Oven Fan Switch supplies 120 VAC through the Power Transformer to the normally open Conveyor Switch Closing th...

Page 10: ...itch supplies 120 VAC through the Air Pressure Switch to the Temperature Control Board the normally open contacts of the Burner Motor Relay Burner Motor Relay discontinued after S N 14791 and the prim...

Page 11: ...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 uses a slotted disc...

Page 12: ...Impinger I 1000 Series Service Manual International 12 SCHEMATIC 1002 1003...

Page 13: ...Impinger I 1000 Series Service Manual International 13 SCHEMATIC 1006 TO SERIAL NUMBERS Q14279...

Page 14: ...Impinger I 1000 Series Service Manual International 14 SCHEMATIC 1028 1029 S N Q19071 BELOW...

Page 15: ...Impinger I 1000 Series Service Manual International 15 SCHEMATIC 1028 1029 S N Q19078 ABOVE...

Page 16: ...Impinger I 1000 Series Service Manual International 16 SCHEMATIC 1030 TO S N Q17170...

Page 17: ...Impinger I 1000 Series Service Manual International 17 SCHEMATIC 1030 S N Q17171 ABOVE...

Page 18: ...Impinger I 1000 Series Service Manual International 18 SCHEMATIC 1032 S N Q19077 BELOW...

Page 19: ...Impinger I 1000 Series Service Manual International 19 SCHEMATIC 1032 S N Q19078 ABOVE...

Page 20: ...Impinger I 1000 Series Service Manual International 20 SCHEMATIC 1033 1034 1046 1047...

Page 21: ...Impinger I 1000 Series Service Manual International 21 SCHEMATIC 1042 1043 S N Q14279 BELOW...

Page 22: ...Impinger I 1000 Series Service Manual International 22 SCHEMATIC 1042 1043 S N Q14280 ABOVE...

Page 23: ...Impinger I 1000 Series Service Manual International 23 SCHEMATIC 1228 1229 S N Q14790 BELOW...

Page 24: ...Impinger I 1000 Series Service Manual International 24 SCHEMATIC 1228 1229 S N Q14791 ABOVE...

Page 25: ...Impinger I 1000 Series Service Manual International 25 SCHEMATIC 1242 1243...

Page 26: ...equipped with Control Box Cooling Fan NOTE Main Fan Relay Export Ovens Axial Cooling Fan Check for power to Main Fan Relay Visually check for contact pull in For ovens equipped with a control circuit...

Page 27: ...valve If voltage is not present replace electronic control package If the pilot valve is energized check to see that the high voltage ignitor circuit is also energized To check disconnect the ignitor...

Page 28: ...ignition control replace the Burner Blower Motor These Ignition Controls have a 30 second pre purge Delay and a 15 second lock out time The Ignition Control will try for ignition for 15 seconds and t...

Page 29: ...00 ohm 1 turn WITH POWER OFF check ohms across red and black leads the ohm reading should be 0 to1000 ohms as the dial is turned From green to red the reading should be 1000 ohms steady throughout the...

Page 30: ...f lights of main power main fan off air pressure switch out 1 on 2 off 3 on 4 off 5 off 6 off Burner Motor Relay bad 1 on 2 on 3 on 4 off 5 off 6 off Burner Motor Centrifugal Switch bad 1 on 2 on 3 on...

Page 31: ...s not exceeding temperature dial setting check for proper location of capillary bulb in its spring holder If above checks okay replace hi limit thermostat Ignition Control Check for 220 VAC supply to...

Page 32: ...age to flame sensor wire and connections Ignition Control If there is sufficient flame sensor current but the burner will not remain ignited check reset button on ignition control if all above are oka...

Page 33: ...k leads This ohm reading should be a steady 400 ohm or 500 ohm through the entire 10 turn rotation of the potentiometer Red to white should be 0 400 or 0 500 ohms as the pot is rotated Check for short...

Page 34: ...C voltage is not present check the 4 amp and the 1 amp fuses on the control board If 120 VAC is present at terminals L1 and L2 but DC voltage is not present at A and A providing the 1 amp and 4 amp fu...

Page 35: ...ould always be attempted at least once before replacement See procedure for board adjustment on page 65 DC Gear motor If the DC control board is steadythen the problem may be the motor or gearbox Chec...

Page 36: ...3 7 4 8 WITH POWER OFF Turn the motor shaft to check for jammed gear box If motor shaft will not turn replace conveyor drive stepper motor Time Temp Display inoperative 12 6 VAC Power Supply Measure t...

Page 37: ...in the red wires leading from the 12 6 VAC transformer to the display If this does not solve the problem it may be coming in through the commercial power lines Suggest that customer contact his power...

Page 38: ...ose from motorshaft Replace as needed Hall Effect Sensor Check for any physical damage to Hall Effect sensor mounted on conveyor drive stepper motor Check all wiring and connections for damage Time Di...

Page 39: ...is open replace Main Fan Relay Check for power to main fan relay Visually check for contact pull in No control box cooling Axial Cooling Fan WITH POWER OFF turn the fan blade to check for locked roto...

Page 40: ...necessary Heater Elements Check the Amp draw on each hot leg for proper load Check the specifications plate for rating information If the Amp draw is low or high check the individual elements for ope...

Page 41: ...age reading of 120 VAC If no present check breakers 3 Amp Fuse This conveyor fuse is located on the front panel Replace if defective Fuseholder Check and or Replace Fan Switch See procedure for checki...

Page 42: ...excessive bearing wear and sometimes irregular speed Power Supply Check power supply at the DC control board for the 120 VAC at board terminals L1 and L2 If voltage is not present check main circuit...

Page 43: ...5 as the potentiometer is rotated through its 10 turn rotation Place the meter leads on the red lead and white lead Rotating the potentiometer slowly from low to high the meter should show an even tr...

Page 44: ...sor bulb Also check each thermistor lead for short to ground Thermocouple Probe Place your pyrometer thermocouple into the center between fingers T2 and T3 in the oven Connect temperature meter to the...

Page 45: ...replace the optical encoder assembly Conveyor Drive Stepper Control Perform all checks as in the above evaluation If the time check is okay refer to the next section Check to see if the conveyor driv...

Page 46: ...2 and 6 of the relay if no voltage is present trace wiring back to the power supply If voltage is present at the relay coil check to insure the contacts are closing Fan Fuse Check replace if necessar...

Page 47: ...one side of switch only check the following Check for proper gas pressure supply to gas valve Marked on oven spec plate Check for proper adjustment of gas pressure switch Should be set at 8 8 for Nat...

Page 48: ...ck for gas pressure at pilot tube Disconnect pilot tube at burner and connect manometer to pilot tube If no gas pressure is present check for blockage in pilot tube If these are clear and there is gas...

Page 49: ...20 VAC at the load terminal to neutral If 220 VAC is not present proceed as follows If 220 VAC is present and unit is not heating see Flame Monitor Check for 220 VAC at terminal COM on temperature con...

Page 50: ...er if voltage is not present trace wiring back to the fuseholder If voltage is present check for output voltage from the transformer secondary NOTE this control transformer outputs 2 secondary voltage...

Page 51: ...etween finger T2 and T3 in the oven Disconnect the yellow tipped thermistor leads from the time temp terminals 9 and 10 Measure the resistance of the thermistor probe Thermistor Probe See chart on pag...

Page 52: ...okay refer to the next section Conveyor Drive Stepper Motor Check to see if the conveyor drive stepper motor is running If motor is not running refer to Conveyor will not run on page 50 Magnet Check t...

Page 53: ...ove fan from motor shaft NOTE Measure distance from fan blade to rear wall assembly before removal to aid in reassembly 9 Remove the eight 8 hex head bolts from the motor mount and slide the motor ass...

Page 54: ...ll wires and mark for replacement 5 Remove relay by removing two 2 mounting screws 6 Reassemble in reverse order COOL DOWN SWITCH 1 Shut off power at main breaker 2 Remove control panel top and front...

Page 55: ...366 When It is used in the 3 ft Impinger Gas oven the following modification must be made 3 Remove control box and components mounted on burner blower motor 4 Mount transformer on air switch bracket a...

Page 56: ...assemble 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 AIR PRESSURE S...

Page 57: ...he gas piping from the back of the unit Remove the four 4 screws from the incoming nipple mounting bracket Remove incoming nipple Remove pilot tube assembly from control valve Disconnect pipe union ju...

Page 58: ...2 of the bulb to the left of the spring holder NOTE The bypass screw should be adjusted all the way in SOLENOID VALVE 1 Shut off power at main breaker 2 Shut off gas supply 3 Remove control panel top...

Page 59: ...17 7 94 9 49 10 26 11 03 12 57 14 11 15 65 C 84 F 3 43 4 94 6 47 7 23 8 00 9 54 10 31 11 09 12 63 14 19 15 71 T 82 F 3 49 5 00 6 53 7 29 8 06 9 60 10 37 11 14 12 69 14 23 15 76 I 80 F 3 55 5 06 6 59...

Page 60: ...ion Control When mounting new ignition control make certain that the green 67 ground wire supplied is installed properly 7 Connect wiring as follows Connect blue wire from gas valve to terminal marked...

Page 61: ...O PILOT LIGHT BLACK FROM VALVE BLUE FROM VALVE RING TERMINAL END OF WIRE HARNESS SUPPLIED IN KIT BUTT SPLICE AND NEW GREEN WIRE SUPPLIED IN KIT WHITE FROM PILOT LIGHT 24V FROM TRANSFORMER INSULATED MA...

Page 62: ...each 7 See Burner blower motor section for wiring information 8 Replace covers and check system operation BURNER LIGHT 24 VAC GAS OVENS 1 Shut off power at main breaker 2 Remove control panel top and...

Page 63: ...eed position 5 Slide dial assembly onto pot shaft and tighten set screw DIAL CONVEYOR SPEED CONTROL OVEN WITH DIGITAL DISPLAY 1 Shut off power at main breaker 2 Remove old dial by loosening set screw...

Page 64: ...ft COUPLING AND ENCODER DISC 1 Shut off power at main breaker 2 Remove conveyor motor assembly 3 Remove dust cover above motor 4 Loosen both allen set screws 050 inch allen wrench located on coupling...

Page 65: ...board NOTE Exchange boards on the mounting bracket before reinstallation 5 Reassemble in reverse order and calibrate See D C Motor Control Board Calibration SN 14975 AND ABOVE 1000 SERIES GAS OVENS S...

Page 66: ...nect a digital volt meter to terminals A and A set meter on 200 VDC scale Turn speed control pot on oven control panel to its maximum speed setting Turn MAX MIN and IR pots counter clockwise until the...

Page 67: ...cates 1 4 to 1 5 VDC Reset the speed control pot to its maximum speed setting and check if voltage is still at 22 6 to 22 8 VDC Readjust if necessary Reset the speed control pot to its maximum speed s...

Page 68: ...RD P N 369272 P 1 1 A FUSE L 2 A T 1 T 2 L 1 A P 3 P 2 MAX MIN BOARD P N 369155 STYLE 2 4 A FUSE L 1 A L 2 A T 1 T 2 P 3 P 2 P 1 MAX MIN P1 CHOKE 1 A FUSE 4 A FUSE RESISTOR 4 A FUSE L 1 L 2 A A T 2 T...

Page 69: ...FOR 50HZ SWITCH 3 OFF FOR F ON FOR C 3 With conveyor running set conveyor speed control so Time Temp Display indicates 5 00 minutes Place a pan on the conveyor measure STOPWATCH the time SPEED OF PAN...

Page 70: ...792 AND ABOVE 1200 SERIES 1 Shut off power at main breaker 2 Remove control panel top 3 Remove relay box cover 4 Change position of dip switch 1 on stepper control board 5 Reassemble in reverse order...

Page 71: ...assembly from conveyor 6 Remove bearing from mounting plate 7 Reassemble in reverse order TRANSFORMER STEPPER MOTOR CONTROL 1 Shut off power at main breaker 2 Remove control panel top and front cover...

Page 72: ...48 38 24 16 Place test pyrometer thermocouple and preheat oven as specified under temperature calibration Disconnect the thermistor probe from terminals 9 and 10 and measure the resistance across the...

Page 73: ...the display numbers match the measured time Seal adjustment pot with Glyptol or nail polish e Calibrate temperature Place a temperature sensor in between top two fingers and set temperature control t...

Page 74: ...Y SET 1 Shut off power at main breaker 2 Remove control panel top 3 Disconnect wires from time temp display terminals 5 and 6 4 Pull off black operating knob and remove hex mounting nut 5 Reassemble i...

Page 75: ...cess cover 4 Depress the spring clips on the sides of the switch and push out 5 Remove wires from back of switch Note wire number and location 6 Install new switch in reverse order and check SWITCH RE...

Page 76: ...unit 3 Remove the four 4 screws from the incoming nipple mounting bracket 4 Remove incoming nipple 5 Disconnect two 2 plugs 1 3 prong and 1 4 prong Note location 6 Disconnect pipe union just above gas...

Page 77: ...g sure capillary tube is placed securely in the wire form NOTE Depress reset button to insure thermostat is set for operation SPARK GENERATOR REPLACEMENT 1 Remove control panel top and front cover 2 L...

Page 78: ...OTE After installation check all pipe fittings for leaks BURNER BLOWER MOTOR REPLACEMENT 1 Remove control panel top and front cover 2 Remove screws around blower tube 3 Disconnect motor wiring and rem...

Page 79: ...and check system operation TEMPERATURE CONTROL REPLACEMENT 1046 1047 1 Remove control panel top and front cover 2 Remove one screw from control knob guard and move guard to one side 3 Remove temp cont...

Page 80: ...nd Outlet 369211 Thumb Screw R 369369 Seam Cover Conveyor Opening S 369203 Stud Wing Head T 369749 Chain Cover Assy S N Q14974 Above U 369204 Split Ring Retainer V 369373 Receptacle Snap In W 369205 C...

Page 81: ...Impinger I 1000 Series Service Manual International 81 BLOW UP 1000 1200 GENERAL...

Page 82: ...r 230 460 575 VAC N L A See Burner Blower Motor Page 55 O 369531 Transformer 120 24V 40VA P 369366 Burner Blower Motor Kit Q 369009 Thermocouple R 369029 Temperature Gauge S 369108 Thermostat Knob Deg...

Page 83: ...Impinger I 1000 Series Service Manual International 83 BLOW UP 1002 1003 S N 2584 TO 4389...

Page 84: ...er Top LH S 369543 Transformer 230 460 575 T N L A See Burner Blower Motor Page 55 U 369531 Transformer 120 24V 40VA V 369366 Burner Blower Motor Kit W 369331 Finger Guard Cooling Fan X 369193 Thermis...

Page 85: ...Impinger I 1000 Series Service Manual International 85 BLOW UP 1002 1003 S N 4390 ABOVE...

Page 86: ...H S 369543 Transformer 230 460 575 VAC T N L A See Burner Blower Motor Page 55 U 369531 Transformer 120 24V 40VA V 369366 Burner Blower Motor Kit W 369331 Finger Guard Cooling Fan X 369193 Thermistor...

Page 87: ...Impinger I 1000 Series Service Manual International 87 BLOW UP 1006...

Page 88: ...22 L 369302 Contactor 50A 120V M 354258 Transformer 230V 115V N 369127 Hi Limit Thermostat 369368 Hi Limit Thermostat Bulb Capillary O 369154 0 7 Amp Circuit Breaker P 369118 Power Terminal Block Q 36...

Page 89: ...Impinger I 1000 Series Service Manual International 89 BLOW UP 1028 1029 1032...

Page 90: ...9 Alarm Burner Shutdown U 369331 Finger Guard Cooling Fan V 369368 Thermostat Hi Limit W 369573 Ignition Control 220 VAC X 369728 Temperature Control Thermostat Y 369085 Junction Box Z 369736 Terminal...

Page 91: ...Impinger I 1000 Series Service Manual International 91 BLOW UP 1030...

Page 92: ...369902 Sensing Rod Kit S 369154 7 Amp Circuit Breaker T 369393 Ignition Control NAT LP U 369331 Finger Guard Cooling Fan V 369085 Junction Box W 353082 Terminal Lug X 369398 4 Cover junction Box Blan...

Page 93: ...Impinger I 1000 Series Service Manual International 93 BLOW UP 1042 1043...

Page 94: ...69579 Alarm V 369574 Spark Generator W 369573 Ignition Control 369771 Push Button Switch X 369580 Gas Valve Multi Block Y 369571 Connector 4 Pole Z 369570 Connector 3 Pole AA 369398 Solenoid Valve Nat...

Page 95: ...Impinger I 1000 Series Service Manual International 95 BLOW UP 1033 1034 1046 1047...

Page 96: ...t Thermostat N 369118 60A Fuseholder O 369007 Temperature Sensing Switch 369902 Sensing Rod Kit Q 369119 60A Fuseholder R 369134 Fuse 50A S 369193 Thermistor Probe T 369167 Set Switch Assy 370046 Butt...

Page 97: ...Impinger I 1000 Series Service Manual International 97 BLOW UP 1228 1229...

Page 98: ...3 Thermister T 369167 Set Switch U 369172 Time Temp Display V 369316 Temperature Dial W 369263 Gas Valve Nat LP Body Only X 369344 Pilot Shut Off Valve Y 369086 Pilot Line Z 369398 Solenoid Valve Nat...

Page 99: ...Impinger I 1000 Series Service Manual International 99 BLOW UP 1242 1243...

Page 100: ...G 369213 Fan S N begins with a Q H See Page 108 I N L A See Conversion Kits Below J 369026 Heat Slinger Bar K 369215 Motor Support Assy S N Q4613 Above 369028 Motor Mount Support Assy S N 4612 Below...

Page 101: ...Impinger I 1000 Series Service Manual International 101 BLOW UP OVEN BACK GAS...

Page 102: ...369646 Rod Stand Off K 369026 Heat Slinger Bar L 369215 Motor Support Assy S N Q4768 Above 369028 Motor Mount Support Assy S N Q4767 Below M 369020 Oven Fan Motor S N Q4767 Below N 369027 Motor Coolin...

Page 103: ...Impinger I 1000 Series Service Manual International 103 BLOW UP OVEN BACK ELECTRIC...

Page 104: ...Coupling and Encoder Disc 050 in Allen Wrench included F 369146 Hex Nut 4 40 G 369294 4 Lockwasher H 369292 Bracket Tach Generator I 369297 Screw 6 32 x 1 4 J 369156 6 Lockwasher K 369293 Screw 4 40...

Page 105: ...Impinger I 1000 Series Service Manual International 105 BLOW UP CONVEYOR MOTOR ASSEMBLY S N 4390 ABOVE...

Page 106: ...6 Drive Sprocket S N Q14974 Above Gas S N Q19078 above Electric 369413 Drive Key K 369219 Rod End Female L 369644 Screw 1 2 20 x 3 4 M 369206 Crumb Pan N 369163 Conveyor Belt 369362 Conveyor Belt by F...

Page 107: ...Impinger I 1000 Series Service Manual International 107 BLOW UP SERIES 1000 CONVEYOR...

Page 108: ...9640 Conveyor Control Stepper S N Q14974 Above 357028 Fuse Non Delay 1A 250V 369201 Fuse 4 Amp 250V F 369272 Conveyor Motor Control B S N Q4613 to Q14973 357028 Fuse Non Delay 1A 250V 369201 Fuse 4 Am...

Page 109: ...Impinger I 1000 Series Service Manual International 109 BLOW UP SERIES 1200 CONVEYOR CONTROL...

Page 110: ...2 Sprocket 1 2 Bore H 369005 Conveyor Belt Connecting Links I 369280 Idler Shaft Inner J 369284 Collar Shaft Spacer K 369039 Blank Drive Gear L 369038 Roll Conveyor Notched M 369281 Idler Shaft Outer...

Page 111: ...Impinger I 1000 Series Service Manual International 111 BLOW UP SERIES 1200 CONVEYOR...

Page 112: ...Impinger I 1000 Series Service Manual International 112...

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