Table of Contents
Troubleshooting
Related Manuals for Lincoln Impinger 3270 CE
Summary of Contents for Lincoln Impinger 3270 CE
- Page 1 PARTS & SERVICE MANUAL Impinger 3270 Impinger 3270 CE REV: 5/2/12 Lincoln Foodservice Products, LLC 1111 North Hadley Road Fort Wayne, Indiana 46804 Telephone: 260.459.8200 Fax: 888.790.8193 Technical Support: 800.678.9511 lincolnfp.com...
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Page 2: Table Of Contents
Table of Contents MODEL NUMBER KEY....................... 3 SEQUENCE OF OPERATION - DOMESTIC ................4 SEQUENCE OF OPERATION - INTERNATIONAL ..............5 SCHEMATIC DIAGRAM - DOMESTIC ..................6 SCHEMATIC DIAGRAM - INTERNATIONAL ................7 TROUBLESHOOTING GUIDE - DOMESTIC ................8 TROUBLESHOOTING GUIDE - INTERNATIONAL ..............13 REMOVAL, INSTALLATION &... -
Page 3: Model Number Key
MODEL NUMBER KEY EXAMPLE: 3270-000-N-K1962 or 3270-000-NCE-K1962 32 70 - 0 00 - N - K1962 Panel Setup Code Fuel Type / Agency Code (i.e. Natural / CE) Custom Configuration Code (i.e. Solid Belt, General Market) Language Code (i.e. English) Oven Platform Size (cooking chamber width) Oven Platform Size (belt width) LANGUAGE CODE TABLE... -
Page 4: Sequence Of Operation - Domestic
SEQUENCE OF OPERATION - DOMESTIC Model Gas Type Voltage Phase 3270 Natural Gas 120 VAC 60 Hz 1 Phase 3270 LP Gas 120 VAC 60 Hz 1 Phase POWER SUPPLY Electrical power to be supplied to the oven by a three conductor cordset. Voltage from the black conductor to the white conductor to be 120VAC. -
Page 5: Sequence Of Operation - International
SEQUENCE OF OPERATION - INTERNATIONAL Model Gas Type Voltage Phase 3270 CE Natural Gas 230 VAC 50 Hz 1 Phase 3270 CE LP Gas 230 VAC 50 Hz 1 Phase POWER SUPPLY Electrical power to be supplied to the oven by a three conductor service. CONTROL BOX When the temperature in either one of the Control Boxes reaches 49°... -
Page 6: Schematic Diagram - Domestic
SCHEMATIC DIAGRAM - DOMESTIC MODEL 3270 120V 60HZ 1PH NATURAL or LP GAS Impinger 3270 Service Manual – Dom & Int’l... -
Page 7: Schematic Diagram - International
SCHEMATIC DIAGRAM - INTERNATIONAL MODEL 3270 CE 230V 50HZ 1PH NATURAL or LP GAS Impinger 3270 Service Manual – Dom & Int’l... -
Page 8: Troubleshooting Guide - Domestic
TROUBLESHOOTING GUIDE - DOMESTIC Model Number Gas Type Voltage Phase 3270 Natural Gas 120 VAC 60 Hz 1 Phase 3270 LP Gas 120 VAC 60 Hz 1 Phase SYMPTOM POSSIBLE CAUSE EVALUATION Oven fan will not run Incoming Power Supply Check breakers, reset if required. - Page 9 motors for shorts or opens. Check for locked rotor. Replace if necessary. No automatic control box Incoming Power Supply Check circuit breakers. Reset if required. Call power cooling company if needed. Fuse, 15 Amp Check, replace if necessary. Fuse Holder Check, replace if necessary.
- Page 10 terminals L1 and L2. If no voltage is present, trace wiring back to oven power switch. If the above checks are okay, proceed. When 24 VAC is applied, the ignition control should switch 120VAC to the hot surface igniter for 45 seconds.
- Page 11 ATTACHED TO THE TEMPERATURE CONTROL BOARD: Measure the D.C. millivolt output of these leads. Refer to thermocouple chart in “Removal and Installation” section of service manual for proper readings. If these readings are not achieved, replace the thermocouple. If these readings are achieved with temperature at maximum setting, replace the oven control.
- Page 12 Conveyor will not run Conveyor Check for any mechanical problems in the conveyor (continued) assembly. Check for damaged or torn belting. Check conveyor shaft bearings for damage or excessive wear. Repair or replace conveyor components as needed. Oven Control Check output voltage from oven control to hall effect sensor (sensor is located in conveyor motor).
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Page 13: Troubleshooting Guide - International
TROUBLESHOOTING GUIDE - INTERNATIONAL Model Number Gas Type Voltage Phase 3270 CE Natural Gas 230 VAC 50 Hz 1 Phase 3270 CE LP Gas 230 VAC 50 Hz 1 Phase SYMPTOM POSSIBLE CAUSE EVALUATION Oven fan will not run Incoming Power Supply Check breakers, reset if required. - Page 14 present and motor doesn’t turn, WITH POWER OFF, check motors for shorts or opens. Check for locked rotor. Replace if necessary. No automatic control box Incoming Power Supply Check circuit breakers. Reset if required. Call power cooling company if needed. Fuse, 10 Amp Check, replace if necessary.
- Page 15 Oven will not heat Air Pressure Switch of Check for air pressure switch to be switching from “NC” to (continued) Burner Blower Motor “NO”. Check for air tube blockage or misalignment. Adjust air pressure switch. If the above fails, replace air pressure switch.
- Page 16 Low flame is on but no Control Transformer Check for supply voltage to primary of control transformer. main flame If no voltage is present, trace wiring back to EMI filter. If voltage is present, check for 24VAC at transformer secondary. If there is primary voltage, but no secondary voltage, replace control transformer.
- Page 17 voltage at switch, replace conveyor control. If voltage is present, check motor windings for opens or shorts. WITH POWER OFF: Check the motor windings as follows: Grey to Black – 116 ohm approx. Grey to Brown – 116 ohm approx. Brown to Black –...
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Page 18: Removal, Installation & Adjustments
REMOVAL, INSTALLATION & ADJUSTMENTS BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE WARNING: IMPINGER OVEN, BE SURE TO DISCONNECT ALL ELECTRICAL POWER AND SHUT OFF GAS SUPPLY. BURNER CONTROL – HONEYWELL – REPLACEMENT – DOMESTIC ONLY WITH POWER OFF: A. Remove appropriate control box cover. B. - Page 19 CONVEYOR DRIVE MOTOR – REPLACEMENT WITH POWER OFF: A. Shut off power at main breaker. B. Remove drive chain and drive sprocket from conveyor motor. C. Remove control panel top and front cover. D. Disconnect motor connector (6 pin connector). E.
- Page 20 BURNER CONTROL GAS VALVE (DUAL VALVE) – REPLACEMENT – DOMESTIC ONLY WITH POWER OFF: A. Remove appropriate control box cover. B. Remove incoming gas line. C. Remove screws from incoming nipple mounting bracket. D. Remove incoming nipple. E. Remove bypass tube assembly. F.
- Page 21 MODULATING GAS VALVE – REPLACEMENT WITH POWER OFF: A. Remove appropriate control box cover. B. Remove incoming gas line. C. Remove screws from incoming nipple mounting bracket. D. Remove incoming nipple. E. Disconnect pipe union. F. Disconnect wiring from control valve. Disconnect wiring from modulating valve (2 wires/screw connections) making note of wire numbers and location for reinstallation.
- Page 22 OVEN CONTROL TRANSFORMER – REPLACEMENT WITH POWER OFF: A. Remove control box cover and front panel. B. Remove wires from transformer being sure to note color and location of wires for reinstallation. C. Remove two (2) screws from transformer base and replace assembly. D.
- Page 23 MAIN FAN MOTOR – REPLACEMENT WITH POWER OFF: A. Shut off gas supply and remove gas line and manifold lines from back of oven. B. Remove screws from motor cover housing and lift off. C. Unplug power connector, Thermocouple, and motor connectors. D.
- Page 24 BEARING, CONVEYOR – REPLACEMENT WITH POWER OFF: A. Remove conveyor from oven and place on a flat work surface. B. Remove connecting links from conveyor belting. See Operator Manual. C. Remove conveyor belting from conveyor. D. Remove mounting screws that holds bearing assembly to the conveyor frame. Move drive shaft or idle shaft toward center of conveyor and shaft with bearing will slip out of holding bracket.
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Page 25: Oven Control - Programming
OVEN CONTROL – PROGRAMMING NOTE: All bake times should be within 10 seconds of set bake time. Cavity temperature should be calibrated to within 5° F of set temperature. For temperature calibration, allow oven temperature to stabilize for, at minimum, 30 minutes. Before checking conveyor speed, allow conveyor to run for 10 minutes. 1. - Page 26 5. Adjust temperature offset. A. Follow the instructions in Step 3 to enter the Sub Level Program. After Sub Program Menu is displayed, press the TEMP button to access the following temperature features: SCALE (° F or ° C), HI TEMP, LOW TEMP, OFFSET (+ or -) MANUFACTURE MODE (Inactive or Active). NOTE: DO NOT change SCALE after it has been set in step 3A or settings will reset to default values.
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Page 27: General View
GENERAL VIEW LETTER PART NUMBER DESCRIPTION 371013 BAFFLE, INLET & OUTLET 370964 PANEL SIDE CONTROL BOX 371456 CONTROL BOX TOP, WELDING ASM, LH 370963 CONTROL BOX TOP, WELDING ASM, RH 7005 TOP, OVEN 3270 370965 CHAIN GUARD ASSY 371455 FINGER SUPPORT ASSY, 3270 370016 NAMEPLATE IMPINGER 371474... - Page 28 GENERAL VIEW Impinger 3270 Service Manual – Dom & Int’l...
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Page 29: Control Box, Left Side - Domestic
CONTROL BOX, LEFT SIDE - DOMESTIC LETTER PART NUMBER DESCRIPTION 370364 LUG GROUND 369532 IGNITION CONTROL 2FT 369331 FINGER GUARD 369124 COOLING FAN 369263 NATURAL GAS CONT ASSY 371062 VALVE GAS 24VDC 1/2 INCH LH NAT 371170 VALVE GAS 24VDC 1/2 INCH LH LP 369552 IGNITOR HOT SURFACE 371008... - Page 30 CONTROL BOX, LEFT SIDE - DOMESTIC Impinger 3270 Service Manual – Dom & Int’l...
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Page 31: Control Box, Right Side - Domestic
CONTROL BOX, RIGHT SIDE - DOMESTIC LETTER PART NUMBER DESCRIPTION 369366 KIT BURNER BLOWER MTR 369401 SHUTTER AIR-ASSY(4071149) 371008 THERMOCOUPLE TYPE K W/ 369552 IGNITOR HOT SURFACE 369568 VENTURI HOT SURFACE NAT 369938 VENTURI HOT SURFACE LP 371460 MAIN ORIFICE .159" NG 371461 MAIN ORIFICE .098 LP 390131... - Page 32 CONTROL BOX, RIGHT SIDE - DOMESTIC Impinger 3270 Service Manual – Dom & Int’l...
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Page 33: Control Box, Left Side - International
CONTROL BOX, LEFT SIDE - INTERNATIONAL LETTER PART NUMBER DESCRIPTION 370401 IGNITOR PLUG-IN MODULE 370400 VALVE VK4115 A 1000 371062 VALVE GAS 24VDC 1/2 INCH LH NAT 371170 VALVE GAS 24VDC 1/2 INCH LH LP 369689 PRESSURE TAP FITTING 369757 ORIFICE LOW PRO NAT 369758 ORIFICE LOW PRO LP... - Page 34 CONTROL BOX, LEFT SIDE - INTERNATIONAL Impinger 3270 Service Manual – Dom & Int’l...
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Page 35: Control Box, Right Side - International
CONTROL BOX, RIGHT SIDE – INTERNATIONAL LETTER PART NUMBER DESCRIPTION 370117 TERMINAL BLOCK 5POLE 369368 TSTAT HILIM B&C GERM 369331 FINGER GUARD 370673 AIRSWITCH PS100 GOLDTEC 370466 TIMER COOL DOWN 30MIN 369422 RELAY DPST 240V 390090 CONVEYOR CONTROL 369378 MOTOR FAN 230VAC 371350 TUBE AIR SENSOR 369771... - Page 36 CONTROL BOX, RIGHT SIDE - INTERNATIONAL Impinger 3270 Service Manual – Dom & Int’l...
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Page 37: Rear Wall Motor Assembly
REAR WALL MOTOR ASSEMBLY LETTER PART NUMBER DESCRIPTION 371462 SHROUD FAN 3270 369213 FAN ASSY 3FT 369777 ROD STAND-OFF L/P 371473 REAR WALL ASM 369215 MOTOR SUPPORT ASSY 369800 MOTOR BLOWER ADV 3' 60HZ 120V 369214 MOTOR 50HZ 230V 369033 CLAMP MOTOR 357003 CLAMP HOSE... - Page 38 REAR WALL MOTOR ASSEMBLY Impinger 3270 Service Manual – Dom & Int’l...
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Page 39: Conveyor, Full Belt
CONVEYOR, FULL BELT LETTER PART NUMBER DESCRIPTION 390119 ZERO STOP SB 32 369002 CONVEYOR TENSION KNOB 371001 TENSIONER FULL BELT ASSEMBLY 370990 BEARING BLOCK ASSY 3255 371004 SHAFT DRIVE END 32 371464 CONVEYOR FRAME WELD FULL BELT 371006 CONVEYOR BUSHING ASSY 369039 GEAR DRIVE BLANK 369038... - Page 40 CONVEYOR, FULL BELT Impinger 3270 Service Manual – Dom & Int’l...
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Page 41: Conveyor, Split Belt
CONVEYOR, SPLIT BELT LETTER PART NUMBER DESCRIPTION 370990 BEARING BLOCK ASSY 3255 370988 TENSIONER SPLIT OUTER ASSY 371337 TENSIONER SPLIT INNER ASSY 369002 CONVEYOR TENSION KNOB 369038 GEAR DRIVE NOTCHED 369039 GEAR DRIVE BLANK 370994 SHAFT IDLE END 32 390119 ZERO STOP SB 32 370996 CONVEYOR BUSHING ASSY... - Page 42 CONVEYOR, SPLIT BELT Impinger 3270 Service Manual – Dom & Int’l...
- Page 43 Impinger 3270 Service Manual – Dom & Int’l...
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