Summary of Contents for Lincoln Impringer Conveyor Oven 1000
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SERVICE MANUAL (DOMESTIC) IMPINGER CONVEYOR OVENS MODEL SERIES 1000 - 1200 & 1400 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...
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. NOTE The 1200 Series Ovens utilize 2 complete conveyor drive systems. TIME TEMP DISPLAY The Time/Temp.
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.
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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.
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TIME TEMP DISPLAY Closing the Oven Fan Switch supplies 120 VAC, through the Power Transformer, to the primary of the Time/Temp. Transformer. The secondary output of the Transformers, 12.5to 15 VAC with a center tap, is supplies to terminals 1, 2, and3 of the Time/Temp.
TROUBLESHOOTING GUIDE 1000 & 1200 SYMPTOM POSSIBLE CAUSE Oven fan will not run Incoming Power Supply NOTE: (Export Ovens) Oven Fan Fuse(s) Fuse Holder Fan Switch Main Relay Fan Motor Capacitor No Main Fan Cool Cool Down Thermostat Down No Control Box Main Fan Relay Cooling(For ovens equipped with Control...
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Air Pressure Switch Transformer, 24 VAC NOTE: (Model 1004 & 1005) Burner Motor Relay Burner Blower Motor Centrifugal Switch of Burner Blower Motor For ovens with Ignition Control and Valve Johnson Controls Assembly Ignition Control (For ovens with Honeywell Ignition control, See Pg.
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Pilot flame but no main Flame Sensor flame Ignition Control and Valve Assembly For ovens with Centrifugal Switch of Burner Honeywell ignition Blower Motor control NOTE: Ignition Control No Pilot Pilot Shut-off Valve Pilot Tube Pilot Orifice Burner Ignitor (There should be a visible pilot flame at this time.) To check for proper flame sensor operation, connect a digital multimeter (capable of measuring D.
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Spark Ignitor (Flame Sensor) Pilot flame but no main flame Red Indicator Light is Temperature Control Valve on, but no main (Robert Shaw) flame(For ovens with Main Orifice mechanical thermostat) (For ovens with Temperature Control Electronic Potentiometer Temperature Control) NOTE: Ovens S/N Q18037 and above, the potentiometer is internal to temperature control. Proceed to next component.
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1 on 2 on 3 on 4 off 5 off 6 off 1 on 2 on 3 on 4 on 5 off 6 off 1 on 2 on 3 on 4 on 5 on 6 off - Pilot Shield missing or warped, Flame Sensor bad, Pilot 1 on 2 on 3 on 4 on 5 on 6 on - However, Main Orifice would not be intermittent problem.
ELECTRIC OVENS MODEL SERIES 1000 & 1200 SYMPTOM POSSIBLE CAUSE Oven fan will not run Incoming Power Supply NOTE: (Export Ovens) Oven Fan Fuse(s) Fuse Holder Fan Switch Main Relay Fan Motor Capacitor No Main Fan Cool Cool Down Thermostat Down No control box cooling Main Fan Relay...
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Temperature Control Board Temperature Control Potentiometer Thermocouple Probe Mercury Contactor(s) 50 Amp Fuses Heater Elements Oven heats with switch Mercury Contactor(s) Conveyor will not run Voltage Supply (S/N 100-4389) 3 Amp Fuse Fuse Holder Conveyor Switch D. C. Motor Control Board Check for 120 VAC input to temperature control board.
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Speed Control Potentiometer Reversing Switch Conveyor Drive Motor Conveyor will not Voltage Supply run(S/N 4390 to Q190771000 Series) (S/N 4390- Q147901200 Series) Fuseholder Fan Switch Conveyor Switch NOTE: (Dual Belt Ovens) Speed Adjustment Potentiometer DC Motor Control Board Impinger I -–1000 Series Service Manual - Domestic This is a 0 to 400 ohm or 0 to 500 ohm, 10-turn potentiometer.
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Conveyor Gear Motor Conveyor Conveyor speed Power Supply varying or intermittent Tach generator and DC Motor Control Board DC Gearmotor Conveyor will not Voltage Supply run(S/N Q19078 & Up1000 Series) (S/N Fan Switch Q14791 & Up1200 Conveyor Switch Series) Conveyor Fuse (3A) Fuseholder If DC voltage is present at A+ and A- and the motor does not run, first check the mini breaker and then...
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Conveyor Control(Stepper) Transformer Speed Adjustment Potentiometer Conveyor Motor(Stepper) Control Conveyor Drive (Stepper) Motor Time/Temp Display 12.6 VAC Power Supply NOTE: (Dual Belt Ovens) Impinger I -–1000 Series Service Manual - Domestic Check for 120 VAC supply to primary of transformer, if voltage is not present, trace wiring back to the fuse-holder.
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Temp Display out or NOTE: Time/Temp displays inaccurate use two types of temperature sensor, Thermistor Probe – 2 yellow wires Thermocouple Probe 1 red wire and 1 white wire Thermistor Probe Thermocouple Probe Erratic time/temp display Temp Display inaccurate erratic, or inoperative Time display inaccurate erratic, or inoperative Optical Encoder...
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Time Display inaccurate, erratic, or inoperative(S/N Conveyor Drive (Stepper) Q19078 & Above1000 Control Series) (S/N Q14791 & Above1200 Series) Magnet Hall Effect Sensor Conveyor Drive (Stepper) Control Impinger I -–1000 Series Service Manual - Domestic Perform all checks as in the above evaluation. If the time check is okay, refer to the next section.
REMOVAL, INSTALLATION & ADJUSTMENTS BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE IMPINGER OVEN BE SURE TO DISCONNECT ELECTRICAL POWER AND GAS SUPPLY MOTOR, MAIN FAN Shut off power at main breaker. Remove flue by taking out the two (2) mounting screws. Remove louvered motor cover from back of oven.
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9 3/4 IN. 1/8 IN. Reinstall and locate fan so that the front of fan blades are 9 3/4" from inside of oven back. (See Drawing) S. N. 4613 & Above (GAS) S. N. 4768 & Above (ELECTRIC) FAN SPIDER FAN HUB CONE Reinstall and locate fan so that the bottom of the fan spider is 1 1/2"...
THERMOSTAT, COOLING FAN Shut off power at main breaker. Remove control panel top and front cover. Remove lead wires and mark for reassembly. Remove two (2) screws and remove thermostat. Reassemble in reverse order. BURNER BLOWER MOTOR Shut off power at main breaker. Remove control panel top and front panel.
CENTRIFUGAL MOTOR SWITCH WHITE BLACK (BUTTSPLICE CONNECTORS PROVIDED FOR 120 VAC POWER SUPPLY) BLOWER WHEEL, BURNER This is part of the burner blower motor assembly. TO REMOVE THE BLOWER WHEEL FOR PERIODIC CLEANING: Shut off power at main breaker. Remove control panel top and front cover. Remove air shutter held by 3 screws.
BURNER ASSEMBLY Shut off power at main breaker. Shut off gas supply. Remove control panel top and front panel. Remove gas control valve (See "GAS CONTROL VALVE") Disconnect pilot tube. Remove thermostat or solenoid valve. Remove four (4) phillips screws that secure the burner backing plate. Remove burner assembly from housing, the main and pilot orifice, flame target, pilot shield (main and extension), flame sensor, and burner ignitor can now be changed or serviced as needed.
MANIFOLD PRESSURE - ADJUSTMENT Remove control panel top and front cover. WITH ELECTRIC POWER AND GAS OFF: remove the outlet pressure tap plug from the gas control valve and install the adapter fitting and manometer. Turn on electric power and gas and start-up oven. With oven at full fire, manifold pressure should be (3.5"W.C.
TEMPERATURE CONTROL POTENTIOMETER – REPLACEMENT Remove control panel top and front cover. Remove one screw from control knob guard and move guard to one side. Remove knob and locknut on control pot. shaft and push out. Remove three (3) wires from temperature control board. Note wire numbers and location. Reassemble in reverse order.
HEATING ELEMENT Shut off power at main breaker. Remove rear motor cover. Disconnect heater element wire and mark for reassembly. Remove oven back assembly. NOTE: For ovens SN 4768 and above, remove fan shroud. Remove two (2) mounting screws and remove heating element. Reassemble in reverse order.
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24V (GND) TO PILOT LIGHT 24V FROM TRANSFORMER INSULATED MALE TAB CONNECTOR BLUE FROM VALVE BLACK FROM VALVE #3 RED FROM VALVE TO PILOT LIGHT Impinger I -–1000 Series Service Manual - Domestic WHITE FROM PILOT LIGHT BUTT SPLICE AND NEW GREEN WIRE SUPPLIED IN KIT WHITE FROM PILOT LIGHT...
FLAME SENSOR Shut off power at main breaker. Remove control panel top and front cover. Remove burner assembly (see burner assembly). Disconnect one (1) wire from flame sensor. Remove flame sensor by removing one (1) mounting nut. Reassemble in reverse order. NOTE: Be sure flame sensor is not bent or touching any other burner parts.
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PILOT ORIFICE - BURNER Shut off power at main breaker. Shut off gas supply. Remove burner assembly (see Burner Assembly). Remove pilot line from pilot orifice. Remove pilot orifice from burner igniter. Reassemble in reverse order. MAIN ORIFICE - BURNER Shut off power at main breaker.
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CONVEYOR MOTOR REPLACEMENT - BALDOR 1000 SERIES SN 4390 - 14974 1200 SERIES SN 4390 – 14791 Shut off power at main breaker. Remove control panel top and front cover. Remove the conveyor drive chain from the motor sprocket. Remove chain guard. Remove the sprocket from the conveyor motor shaft by loosening the set screws and sliding the sprocket off the shaft.
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OPTICAL ENCODER ASSEMBLY Shut off power at main breaker. Remove conveyor motor assembly .If replacing with new assembly, cut wires to remove as new wires and plug are provided. If only removing for access to coupling follow step 4. Remove pins from connectors with pin extractor tool, P/N 369600. Loosen dust cover screws and pull dust cover away from motor.
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PLACE DIGITAL VOLTMETER LEADS ON terminal S1 and S2, adjust the max pot. for a reading of 3.4 VDC. Place METER LEADS on terminals A1 and A2. Adjust the reg. pot. for a reading of 125 VDC. NOTE: In some instances when the input AC voltage runs on the high side of the normal input range, you may have difficulty adjusting the max.
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D. C. MOTOR CONTROL BOARD SN 4390 - 14974 1000 SERIES GAS OVENS SN 4390 - 14790 1200 SERIES Three different styles of control boards have been used and all three are still usable. All three were supplied under the same part number. STYLE 1 CONTROL BOARD ADJUSTMENT NOTE: A digital meter must be used for this adjustment.
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checked until both "MIN" and "MAX" are in proper adjustment. Measure the speed of the conveyor and adjust the time/temp. display if necessary. Seal pots with Glyptol or nail polish. NOTE: Occasionally a new board (Style 2 and 3 only) is so far out of adjustment that you will be unable to adjust the correct voltage.
STEPPER CONTROL - ADJUSTMENT S/N 14975 AND ABOVE 1000 SERIES GAS OVEN S/N 14792 AND ABOVE 1200 SERIES GAS OVEN Min. Max. Conveyor Conveyor Speed Adj. Speed Adj. POTENTIOMETER With power off, the five (5) dip switches located on the conveyor control (see drawing above) should be set as below.
REVERSING CONVEYOR DIRECTION SN 100-4389 (BODINE) Shut off power at main breaker. Remove control panel top. Turn reversing switch (located on relay box) to obtain desired belt direction. Reassemble in reverse order. SN 4390-14974 1000 SERIES GAS OVEN SN 4390-14791 1200 SERIES All ovens leaving our plant are wired to operate conveyors from left to right.
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BEARING, CONVEYOR SN 2164 AND ABOVE Remove conveyor from oven and place on a flat work surface. Remove connecting links from conveyor belting. See Installation and Operating Instructions Manual . Remove conveyor belting from conveyor DRIVE END Remove drive sprocket from drive shaft. Remove two (2) allen head bolts.
TEMPERATURE GAUGE - REPLACEMENT Shut off power at main breaker. Remove control panel top. Disconnect thermocouple from temperature gauge. Remove two (2) mounting bolts and remove temperature gauge. Reassemble in reverse order. THERMISTOR - REPLACEMENT Shut off power at main breaker. Remove control panel top.
ALL 1000 & 1200 SERIES OVENS SWITCH SETTINGS TYPE I TYPE II TYPE III (Baldor Motor) TYPE III (Stepper Motor) TYPE IV (Baldor Motor) TYPE IV (Stepper Motor) *These switches are for Hertz settings (OFF=60HZ) & (ON=50HZ) **These switches are for temperature read-out (OFF=Degrees F) & (ON=Degrees C) Turn power on.
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Type IV has adjustment pots. In the center board. If temperature is still inaccurate after above calibration and troubleshooting, use the following to check the High Temp. Pot. normally the High Temp. Pot. does not require adjustment. Occasionally the pot is accidentally moved or needs adjustment. Refer to the following drawing showing proper adjustment of the High Temp.
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Dip Switch TYPE I TYPE II TYPE III NOTE: When on 50 HZ power, dip switch #2 must be "ON" With power ON turn time and temperature cal. pot. fully counterclockwise. Display should read: (Wait 15-20 seconds) TYPE I 9:30 + 10 sec.475 + 10° F TYPE II 9:20 + 10 sec.
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THE FOLLOWING ITEMS ARE USED IN THE MODEL 1030, 1046, 1047 IMPINGER OVEN (EXPORT) AIR PRESSURE SWITCHES - REPLACEMENT AND ADJUSTMENT Remove control panel top. Disconnect wires from switch making note of wire number and location for reinstallation. Remove air tube from switch assembly. Remove switch from wire hanger.
IGNITION CONTROL - REPLACEMENT Remove control panel top and front cover. Loosen two (2) locking screws on front cover of relay (approx. 1/2 turn). Remove front portion of relay by pulling straight out (rocking motion). Remove wires from plug-in terminal strip, note wire numbers and locations. Remove two (2) screws from mounting bracket and remove.
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BURNER ALARM LIGHT - REPLACEMENT Remove control panel top and front cover. Remove two (2) wires from light assembly, note wire number and location. Grasp body of light assembly and slide sideways to remove. Reassemble in reverse order and check. PILOT LIGHT (220V) - REPLACEMENT Remove control panel top and front cover.
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TEMPERATURE CONTROL POTENTIOMETER - REPLACEMENT Remove control panel top and front cover. Remove one screw from control knob guard and move guard to one side. Remove knob and locknut on control pot shaft and pushout. Remove three (3) wires from temperature control board, note wire colors and location. Install new control pot.
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THIS PAGE INTENTIONALLY LEFT BLANK. Impinger I -–1000 Series Service Manual - Domestic...
PARTS / SERIES 1200 - CONVEYOR CONTROL LETTER 369012 369013 369240 369155 369640 357028 369201 369272 357028 369201 369154 N. L.A. 369665 369289 369242 369696 369124 369605 DESCRIPTION SEE PAGE 82 Fuseholder Fuse, 3 Amp Hi Hat Conveyor Motor Control, "A" S/N Q4613 to Q14973 Conveyor Control (Stepper) S/N Q14974 &...
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Amperage draw on model 1000 gas pizza oven
this oven need be installed under **** hood