Lincoln 1100ADVSVC Convection Oven User Manual
Contents
1. TOO 25992082 AOCL OL H3dWnf TOHINOI YOASANOD 135 310N 311 HA W TO V 038 HLIM Lee 3u M CHOLIMS HOAIANOI 30 NOI19341Q 2543434 01 SHIENNN 34IM XX AVTdS1Q dW3l u3WUOdSNvul Hu3Nung H3WHOJSNYUI A133yS WNO JAAVA NO11V1093H IUNLVYIANIL JAA H313WOI1N310d IUNLVYIdWIL ITANOIONBIHL NJAO LIWI IH LYLSOWYSHL NY4 9NI 1009 1 150 X08 1812 LIWII IH IVISOWHIHL NIYW H31IMS YOAZANOI YOLOW H3M018 YINUNO HOLOW INI 7009 YOLOW 310N orc 802 OG LATT 4 NY4 YOLOW LIND YA YOLVIIONI HILVIH davi HALIN9I 3293905 LOH YOSNIS 193443 11YH HOSNIS 3WY 14 VOL SIOHINOI 3 YOLOW 3503 710H1NO2 3HN1YH3dW3L1 IINOYLIITI IN32 YINYNO 211 5 1N32 NIYW HOLIMS 83134011N310d HOAJANO2 JOYLNOJ HOAJANOI YINVIYA 1112912 HOL 1 9YdY9 JOYLNOI H3NHn8 SH SH S4 13 213 CSI 152 dd 99 82 38 NO I LYYND I 3NO2 HJLTMS Impinger Il Advantage Service Manual Domestic SCHEMATIC 1130 000 A 1131 000 A 00622082 NJAO W39NIdW JOVINVAQOY VNYIQNI 3NAVM 1804 Oui ses omo SOLA IS Poo TOUT A Ore OL H3dWnf HOAJANOI 135 310N YILIWNO I INILOd 3UNLYYIdWIL ITANOIONYIHL LINIT IH NJAO 1V1SOWH3HL 9NI 7000 LYLSONYIHL LIMIT IH X08 T0YINOI LVLSOWYSHL AV 1dSIG 3H nlYH3dW31 NJAO NIYW HOLIMS H31V3H AV 13H HOAJANO2 HO1ON NY42. 0 0 5 5 O E 37013 Operations Label xU F 369085 Knob JXJ S D JJ G 350224 Lens Yelow _ H 369432 OmOffSwich 1 369800 9 Conveyor Potentiometer SS ___ 370605 Magneti6Poe Conveyor Motor Assembly Includes 8717 N 9691301 Thermocouple O 39378 GCoolingfan I P 1 370067 X Mercury Contactor 1 Phase O 369479 Mercury Contactor 3 Phase 1 1 1 1 1 O Q 370072 Transformer Temperature Display o R 369005 Air Pressure Switch T 369507 Thermostat Cooling Fan V 369085 Support Stand Off MW 370074 Conveyor Control X 36092 Capacitor C 1 Z DD 369129 Fuseholder gt gt S Impinger Il Advantage Service Manual Domestic BLOW UP CONTROL BOX 1130 000 A THRU 1133 000 A Impinger Il Advantage Service Manual Domestic CONTROL PANEL 31 32 PARTS CONVEYOR amp DOOR LETTER PART NUMBER DESCRIPTION A C 369666 Conveyor Frame Assembly 369226 Pan Stop 369516 Conveyor Bearing 369513 A ee B SR NER MENTI pi Eo ee ae Q R poU Impinger Il Advantage Service Manual Domestic BLOW UP CONVEYOR amp DOOR Impinger Il Advantage Service Manual Domestic 33 34 LETTER PARTS OVEN BACK ASSEM
3. Remove conveyor motor assembly Remove wire connector from hall effect sensor board Hemove two 2 screws from conveyor drive motor Hemove sensor board from mounting bracket Reassemble in reverse order Reinstall plug on hall effect sensor board and check conveyor system operation Replace control box covers and check system operation TEMPERATURE DISPLAY TRANSFORMER REPLACEMENT D 919 Shut off power at main breaker Remove control panel top and front cover Remove two 2 wires on primary side note color and location Remove three 3 wires on secondary side note color and location Remove two 2 screws from transformer base and replace assembly Reinstall in reverse order and check system operation TEMPERATURE DISPLAY REPLACEMENT ARNE Shut off power at main breaker Remove control panel top and front cover Remove all wires from temperature display and mark wires for reassembly Pry temperature display to remove from mounting tabs this is a pressure fit Reassemble in reverse order CALIBRATION OF TEMPERATURE DISPLAY Place the thermocouple of your test meter through a finger hole in the top center of the oven Pre heat the oven to 500 F for 30 minutes Set switch on back of temperature display to read desired temperature F or C Adjust Temp Adj pot on back of temperature display until display matches actual oven temperature MERCURY CONTACTOR REPLACEMENT DU UI Shut off power at main
4. 9NI 7002 HOLOW 3L IHM U7D GVY G38 HLIM WEle 3YIMCHOLIMSJHOAIANOJ JO NOI193HIC 3S43A34 01 310N JSVHd zd Yd L L SHJEWNN 3HIM XX AY 1dSIG YINYOISNYYL LUX MAO I MAOL NIYW YOLOW LINDYK YOLVIIONI H31V3H dWv1 H31V3H HOSN3S 193443 11YH VOL STOY LNOD 8 HOLON 3Snd 71OHLNO2 3H lVH3dW31 2INOHI2313 YIL3WO INILOd HOAJANO9I TOYLNOI YOAIANOI YINVIYG 1102912 YOL 27 4 2 HOLIMS 34n5S3Hd HIV HILIMS ZH09 AOpZ ZHOS ABO EL 1300N 1300W 5 1123 2 170A OpZ G en Impinger Il Advantage Service Manual Domestic SCHEMATIC 1132 000 A 1133 000 A 21622082 NJAO Wd3ONIdWI 39VINVAOV VNYIONI 3NAVM 1803 our DDAIOS Poo TOUT A Ove OL H3dWhnf TOHYINOI HOAJANOI 13S Ore BOZ Og LEV V 038 HLIM 3u MCH211MS2 H0A3ANOO dO NOI19341Q ISH3A3H OL 21 1HA 09I SYJEWNN 3MIM KX YINYOISNYYL LUX H313WOI1N310d IYNLVYIdWIL dl J1IdNODOWHSHL 21 LIWI7 IH N3A0 IVISOWHIHI EL 9NI 1002 IVISOWHIHI 21 LINIT TOHINOI LYLSOWHIHL 11 AVTdSIG IYNLVBIdWIL N340 1 NIVN HOLIMS 5 YIIVIH AVI3H IH HOLOW EW 9NI31009 HOLOW ZW 8 8 HOLON 13N9YW YOLVIIONI H3iV3H
5. GAS 120 VAC 60 HZ 1 PHASE Electrical power is supplied to the oven by a three conductor cordset Voltage from the black conductor to the white conductor is 120 VAC The white conductor is neutral The green conductor is ground When the temperature in the control box reaches 120 F 3 48 9 C 1 7 C the interrupt power to the fans when the control box temperature falls to 100 F 3 37 8 1 7 C Power is permanently supplied through a 10A fuse and through a normally closed control box hi limit thermostat to the normally open main fan switch Power is also supplied to the normally open cooling fan thermostat Closing the main fan switch supplies 120 VAC to the main fan motor the cooling fan motor the primary of the temperature display transformer the heat and conveyor circuits Closing the main fan switch supplies 120 VAC to the burner blower motor 120 VAC is also supplied through the normally closed oven cavity hi limit thermostat the main fan centrifugal switch this switch closes when main fan reaches approximately 1600 RPM to the electronic temperature control and to the primary of the burner transformer The ignition control operates on both 24 VAC and 120 VAC When the control is energized by 24 VAC from the transformer 120 VAC is switched by the ignition control to the hot surface ignitor for 45 seconds for the hot surface ignitor warm up The ignitor glows red 24 VAC is switched to the gas valve which open
6. HILVIK HOSN3S 123443 VH VOL STOHINOI 8 HOLOW 3503 JOYLNOI 3un1VH3dW31 O NOH12313 H313W011N310d H0A3ANO2 TOHYLNOI YOAZANOD YINVIYA 1112912 YOLIIVAYI O HOLIMS 38NSSIUd ULV NOTLYYNDEINOD HOLTMS 3SYHd MXOL ZHOS AOC W 000 EE LL 1300 3SVHd MAGI ZHOS 802 V 000 CELL 13QO0M Impinger Il Advantage Service Manual Domestic MODEL 1116 000 A TROUBLESHOOTING GUIDE GAS OVENS MODEL 1117 000 A LP GAS SYMPTOM Oven fan will not run No control box cooling No automatic control box cooling Oven will not heat POSSIBLE CAUSE Incoming Power Supply Fuse 10 Amp Fuse Holder Hi Limit Thermostat Control Box Main Fan Switch Main Fan Motor Capacitor Incoming Power Main Fan Switch Cooling Fan Incoming Power Supply Cooling Fan Thermostat Cooling Fan Gas Supply Main Fan High Limit Oven Cavity Thermostat Centrifugal Switch of Main Fan Motor NATURAL GAS 120 VAC 60HZ 1PHASE 120 VAC 60HZ 1PHASE EVALUATION Check breakers reset it required Check power plug to be sure it is firmly in receptacle Measure incoming power call power company if needed Check replace if necessary Check replace if necessary Check for voltage on both sides of the switch Terminals are normally closed If open reset and test oven for proper operation If thermostat will not hold and control box temperature is not exceeding 140 60 replace thermostat Check continuity bet
7. Shut off gas supply Remove control panel top and front cover Remove burner manifold see Temperature Regulation Valve Remove main burner orifice from burner manifold Reassemble in reverse order Check all pipe fittings for gas leaks ORO m CONVEYOR CONTROL POTENTIOMETER REPLACEMENT Shut off power at main breaker Remove control panel top and front cover Loosen two 2 allen screws and remove knob by sliding off shaft Remove mounting nut from potentiometer shaft and push out Unplug wire connector from conveyor control board Reassemble in reverse order and check system operation Qu PO I Impinger Il Advantage Service Manual Domestic 21 CONVEYOR CONTROL BOARD REPLACEMENT j Shut off power at main breaker 2 Remove control panel top and front cover 3 Disconnect wiring push on connectors from control board note proper location of connectors for reinstallation and exchange boards on the mounting bracket before reinstallation 4 Hemove mounting screws from control assembly 5 Reassemble in reverse order and check system operation NOTE Be sure that jumper on conveyor control is set to the proper 120 240 position CONVEYOR CONTROL BOARD CALIBRATION 1 Connect digital volt meter to the hall effect sensor Black meter lead connected to black hall effect sensor lead red meter lead to white hall effect sensor lead 2 Turn conveyor control knob fully counter clockwise Loosen knob and align with
8. high voltage input and output 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 opens shorts and proper resistance WITH POWER OFF To check resistance of the elements remove all leads from the elements and use an accurate digital VOM The element resistance should be as follows 208V 27 ohms approximately 240V 36 ohms approximately The mercury contactor has probably malfunctioned in the closed position If there is no voltage to the operating coil but there is high voltage at the contactor out put replace the mercury contactor The main fan motor is equipped with internal thermal protection and will cease to operate if overheating occurs As the motor overheats and then cools this will cause the oven to cycle on and off intermittently This may be caused by improper ventilation or preventive maintenance Also most of the problems listed under Oven will not heat can cause intermittent failure Check incoming voltage supply at line 1 to neutral There should be a voltage reading of 208 240 VAC If not present check breakers Check and or replace Check and or replace See procedure for checking on page 8 Impinger Il Advantage Service Manual Domestic Speed Adjustment Potentiometer DC Motor Control Board Conveyor Gear Motor Conveyor Conveyor speed varying or Power Supply intermitt
9. terminals replace the ignition control If 120 VAC is present at hot surface ignitor terminals visually check to see that the ignitor is heating Ignitor may be viewed through the port glass in end of burner tube The ignitor should glow bright red If the ignitor does not heat replace the ignitor After 45 seconds of hot surface ignitor pre heat the ignition control will switch 24 VAC to the gas control valves Check for 24 VAC output from ignition control across terminals marked valve and valve ground If no voltage is present replace ignition control When 24 VAC is supplied to the gas control valve the valve should open Check for gas pressure at the manifold tap located just before the burner If there is no pressure check the incoming gas supply to be sure all manual valves are open and flexible gas hose is properly connected If gas is present and coils of gas valve are energized the gas valve is probably defective Six seconds after the gas valve opens ignition must occur if flame is not detected the ignition control will shut off and lock out To reset the ignition control turn off the burner switch for 45 seconds then turn on the burner switch to retry ignition The ignition control requires a minimum of 0 8 D C microamps To check flame sensing operation connect a digital multimeter capable of measuring D C micro amps between the ground terminal on ignition control and the ground lead NOTE This is a
10. BLY PART NUMBER 369182 369899 369655 369183 369184 369976 369549 369581 369539 369181 369695 369033 369681 369979 369227 369541 DESCRIPTION Motor Electric Ovens 208 240V Impinger Il Advantage Service Manual Domestic BLOW UP OVEN BACK ASSEMBLY Impinger Il Advantage Service Manual Domestic 35 36 79 Lincoln JE M En ST CERTIFIED SERVICE AND PARTS Impinger Il Advantage Service Manual Domestic
11. ER SUPPLY CONTROL BOX AUTO COOL DOWN MAIN FAN CIRCUIT HEATER CIRCUIT CONVEYOR DRIVE NOTE Temperature Display SEQUENCE OF OPERATIONS 1130 000 A 208V SINGLE PHASE 1131 000 A 240V SINGLE PHASE 1132 000 A 208V THREE PHASE 1133 000 A 240V THREE PHASE Electrical power to be supplied to the oven by a three conductor service on single phase and a four conductor service on three phase Black conductor is Hot Red conductor is Hot Orange conductor is Hot Used on 3 phase only Green conductor is ground When the temperature in the control box reaches 120 F 3 F 48 9 1 7 C the cooling fan thermostat will switch power to the cooling fans The thermostat will interrupt power to the fans when the temperature falls to 100 3 F 87 C 1 7 C Power is permanently supplied through the 10A fuses through the normally closed control box high limit thermostat to the normally open main fan switch Power is also supplied to the normally open cooling fan thermostat Closing the main fan switch supplies 208 240 VAC to the main fan motor the cooling fan motor to the primary of the temperature display transformer and to the heat and conveyor circuits Closing the fan switch supplies 208 240 VAC through the normally open air pressure switch closed by air pressure from the main fan through the normally closed oven cavity hi limit thermostat to the electronic temperature control The 1K ohm temperature p
12. SERVICE MANUAL DOMESTIC IMPINGER CONVEYOR OVENS IMPINGER ADVANTAGE SERIES 3 Lincoln 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 800 678 951 1 www lincolnfp com dV M En ST CERTIFIED SERVICE AND PARTS 1100AdvSvc REV 1 5 07 TABLE OF CONTENTS TABLE OF CONTENTS SEQUENCE OF OPERATIONS SEQUENCE OF OPERATIONS SCHEMATIC 1116 000 A 1117 000 A SCHEMATIC 1130 000 A 1131 000 A SCHEMATIC 1132 000 A 1133 000 A TROUBLESHOOTING GUIDE GAS OVENS TROUBLESHOOTING GUIDE ELECTRIC OVENS REMOVAL INSTALLATION AND ADJUSTMENT PARTS GENERAL BLOW UP GENERAL PARTS CONTROL BOX 1116 000 A 1117 000 A BLOW UP CONTROL BOX 1116 000 A 1117 000 A PARTS CONTROL BOX 1130 000 A THRU 1133 000 A BLOW UP CONTROL BOX 1130 000 THRU 1133 000 A PARTS CONVEYOR amp DOOR BLOW UP CONVEYOR amp DOOR PARTS OVEN BACK ASSEMBLY BLOW UP OVEN BACK ASSEMBLY Impinger Il Advantage Service Manual Domestic SEQUENCE OF OPERATIONS IMPINGER ADVANTAGE MODEL 1116 000 A NATURAL GAS 120 VAC 60 HZ 1 PHASE POWER SUPPLY CONTROL BOX AUTO COOL DOWN MAIN FAN CIRCUIT BURNER CIRCUIT IGNITION CONTROL TEMPERATURE CONTROL CONVEYOR DRIVE NOTE Temperature Display MODEL 1117 000 A L P
13. TAGE CAUTION 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 motor cover from back of oven Remove wires for motor and mark for reassembly Remove hex head bolts from the oven back and slide back straight out of the oven Loosen bolt from fan hub and remove fan from motor shaft OTE Measure distance from fan blade to rear wall assembly before removal to aid in reassembly Remove the bolts from the motor mount and remove motor clamp Slide the motor assembly out of the oven back QUE CI es T Remove motor by removing the four 4 mounting nuts and washers 8 Reassemble in reverse order When motor mount assembly is set on the oven back align motor shaft in the center of the hole Set fan assembly on the motor shaft NOTE It is recommended that an anti seize compound be brushed to the bolts around the back and motor mount bracket before assembly FAN MAIN 1 Shut off power at main breaker 2 Remove back assembly See motor main fan 3 Reinstall and locate fan so that the bottom of the fan spider is 1 1 2 from the top of the oven back cone See drawing FAN SPIDER NOTE MEASUREMENT MUST BE la MADE FROM CONE TO FAN SPIDER FAN HUB 1 1 2 INCH CONE y CAPACITOR MOTOR Shut off power at main breaker Remove control box cover and front panel Discharge capacitor Remove and
14. THE TEMPERATURE CONTROL BOARD Measure the D C millivolt output of these leads Refer to thermocouple chart in Section D for proper readings If these readings are not achieved replace the thermocouple Disconnect the potentiometer leads from the board Place ohm meter test leads on the blue and green pot leads Reading should be 1 K ohms Place meter leads across the blue and purple pot leads and rotate knob from high to low Repeat on green and purple leads Check for even rise and fall of ohms reading to insure that there are no open or dead spots in the potentiometer Check each lead to ground for shorts Replace pot if it does not meet the above test If 120 VAC is present on the temperature control board at load terminal 8 to neutral check for voltage at temperature regulation valve If voltage is present listen for valve to open and close Also check for opens or shorts in the coil Replace as necessary The main fan motor and the burner blower motor are equipped with internal thermal protection and will cease to operate if over heating occurs As the motors overheat and then cool this will cause the units to cycle on and off intermittently This may be caused by improper ventilation or preventive maintenance Also most of the problems listed under Oven will not heat can cause intermittent failure Check incoming voltage supply at line 1 to neutral There should be a voltage reading of 120 VAC If not present check breake
15. ace Remove connecting links from conveyor belting Move drive shaft or idle shaft toward end of conveyor and shaft with bearing will now slip out of holding bracket Replace bearing and reassemble Impinger Il Advantage Service Manual Domestic This page intentionally left blank Impinger Il Advantage Service Manual Domestic 25 26 LETTER PART NUMBER 369390 369502 3 0010 369504 369503 369511 369659 369225 369211 3 0118 369231 369232 369919 3 0066 PARTS GENERAL DESCRIPTION Impinger Il Advantage Service Manual Domestic BLOW UP GENERAL 28 LETTER PARTS CONTROL BOX 1116 000 A 1117 000 A PART NUMBER DESCRIPTION 370108 369128 370073 370107 370131 369845 350224 369805 369809 369449 369124 369537 369131 370061 Conveyor Motor Assembly Includes O amp P 369823 370065 369901 369568 369938 369552 369398 369366 369401 370072 369263 369556 369557 369531 370064 357067 369192 369532 369507 369431 369465 370074 369856 369166 369129 369331 369566 369524 Impinger Il Advantage Service Manual Domestic BLOW UP CONTROL BOX 1116 000 A 1117 000 A Impinger Il Advantage Service Manual Domestic tu z lt o 29 30 PARTS CONTROL BOX 1130 000 A THRU 1133 000 A LETTER PART NUMBER DESCRIPTION B 360467 Piotlig t ho D Ju SidePanl gt
16. aged Replace motor as needed Check for any mechanical misalignment Also check for worn bearings A conveyor belt that is over tightened will cause excessive bearing wear and sometimes irregular speed Check power supply at the DC control board for the 208 240 VAC at board terminals L1 and L2 Place the test meter probes on terminals A and A With speed potentiometer set to maximum speed Approximately 2 minutes the meter reading should be approximately 100 VDC 3 if voltage is not steady within limits then the board is probably bad Always check the speed pot Be sure it is okay before changing a board This test is not always 100 accurate as this test is not performed at operating speeds However this test is the best method currently available If the DC control board is steady then the problem may be the motor or gearbox Check the brushes in the motor for excessive arching and or unusual wear Check the motor and gearbox from instruction located on page 14 under possible cause listing conveyor gear motor Check to insure that the magnet cemented to shaft of conveyor drive motor has not been damaged or come loose from motor shaft Replace as needed 15 Temp Display inoperative Temp Display inaccurate erratic or inoperative 16 Hall Effect Sensor Display Transformer Temperature Display Thermocouple Check for any physical damage to hall effect sensor mounted on conveyor drive motor Che
17. ase and replace assembly Reinstall in reverse order and check system operation SOB THERMOCOUPLE REPLACEMENT Shut off power at main breaker Remove control panel top and front cover Slide thermocouple out of oven chamber OTE Remove conveyor and bottom finger assembly to aid in removal and installation of thermocouple Remove two 2 wires from temperature control Make note of wire numbers or color and location for reinstallation Reassemble in reverse order making sure the metal end on the thermocouple is securely held in the wire form in the oven chamber B Z0 di THERMOCOUPLE MEASUREMENT CHART INFORMATION When two wires composed of dissimilar metals are joined together and one of the ends is heated a continuous current flow is generated We use an iron constant Type J thermocouple The iron wire increases the number of dissimilar junctions in the circuit It is possible to check a thermocouple with a properly calibrated D C millivolt meter At 32 F the millivolt reading should be 0 00 This can be checked by inserting the thermocouple into an ice bath The millivolt reading at 72 F should be 1 134 When using the following chart the temperature at the terminal connections must be noted This temperature is called the Junction Temperature The following chart lists the thermocouple millivolt readings from 200 F to 600 F EXPLANATION The junction temperature is the ambient air temperature where the thermoc
18. assemble in reverse order and check system operation HEAT LIGHT REPLACEMENT OUR Shut off power at main breaker Remove control panel top and front panel Remove two wires from burner light note number and location Grasp body of light assembly and slide sideways to remove Reassemble in reverse order and check BURNER CONTROL HONEYWELL REPLACEMENT gre Ic Shut off power at main breaker Remove control panel top and front cover Remove wires from control note wire numbers and location for reassembly Remove screws from control and replace Reassemble in reverse order and check system operation GAS VALVE REPLACEMENT 20 OG s D e DOLI TE Shut off power at main breaker Shut off the gas supply in the main line to the oven Disconnect the flexible gas hose Remove the control panel top and front panel Remove the manual gas shut off valve from piping Remove screws from the bulkhead plate located on rear of oven at the gas pipe Remove the section of gas pipe to gas valve Disconnect the electrical leads from the solenoid valve Disconnect bypass tube Loosen the gas line union located near the burner and remove the gas valve and piping assembly Finish removal of the gas piping from gas valve Reassemble in reverse order Check all gas fittings for leaks Adjust the gas manifold pressure on the gas valve Refer to the specification plate on the oven for proper rating Impinger Il Advantage Servi
19. breaker Remove control panel top and front cover Disconnect all wires and mark for reassembly Hemove screws from mounting bracket and remove contactor Reassemble in reverse order AIR PRESSURE SWITCH REPLACEMENT gt POR S OD Shut off power at main breaker Remove control panel top and front conveyor Disconnect wiring and mark for reassembly Disconnect air tube Remove mounting screws Reassemble in reverse order Turn on power and calibrate air switch as follows Turn adjusting screw counter clockwise to full out position Turn oven on Turn adjusting screw clockwise until heat shuts off Turn adjusting screw counter clockwise 1 4 turn and unit should heat Impinger Il Advantage Service Manual Domestic 23 HEATING ELEMENT REPLACEMENT OTE Z 9 oo go OBOE Shut off power at main breaker Remove back cover Disconnect heater element wires and mark for reassembly Disconnect motor wiring and mark for reassembly Remove oven back from oven Remove fan shroud Heater element may now be unbolted and removed Check heater elements to be sure they ar the proper replacement Reassemble in reverse order Apply anti seize compound to back bolt threads before reassembly Be sure the lead terminals are tight If the leads are not tight a loose connection will result causing arcing and lead wire burn off BEARING CONVEYOR 24 1 2 3 Remove conveyor from oven and place on a flat work surf
20. calibration line and tighten knob 3 Set knob to one minute setting Adjust max pot on conveyor control to 327 5 Hz 4 Set control knob to 30 minute setting and adjust min pot on conveyor control to 10 9 Hz Recheck at one minute and 30 minutes until proper readings are achieved Seal pots with glyptol or nail polish CIRCUIT BREAKER Shut off power at main breaker Remove control panel top and front panel Disconnect two 2 wires from circuit breaker Remove knurled mounting nut and push out Reassemble in reverse order NOTE Be sure to reset breaker before operating DAWN CONVEYOR DRIVE MOTOR REPLACEMENT Shut off power at main breaker Remove conveyor Remove control panel top and front cover Disconnect wiring from motor and mark for reassembly Remove coupling from motor drive shaft Remove 4 screws and remove conveyor motor and mounting bracket Remove mounting bracket from conveyor motor assembly Reassemble in reverse order Qo o Cn INI REVERSING CONVEYOR DIRECTION Shut off power at main breaker Remove control panel top Remove cover from relay box Reverse wires fastened to terminals A and A on conveyor control board See schematic diagram for wire numbers Reassemble in reverse order pep e 22 Impinger Il Advantage Service Manual Domestic HALL EFFECT SENSOR REPLACEMENT p SI EO Tw s Shut off power at main breaker Remove control panel top and front cover
21. ce Manual Domestic BYPASS ORIFICE Shut off power at main breaker Shut off gas supply to oven Remove control panel top and front cover Remove pilot tube from bypass orifice and remove orifice Reassemble in reverse order CSS hl TEMPERATURE REGULATION VALVE REPLACEMENT Shut off power at main breaker Shut off gas supply Remove control panel top and front cover Remove bypass tube from burner manifold Disconnect wires from valve and mark wires for reassembly Remove 4 nuts from burner manifold and loosen pipe union Remove temperature control valve and piping Remove piping from valve and reassemble in reverse order Check all pipe fittings for leaks OG DL OY e oor To c HOT SURFACE IGNITOR REPLACEMENT Shut off the power at main breaker Shut off the gas supply in the main line to the oven Remove control panel top and front cover Remove Gearmotor DC Conveyor Remove electrical plug from the burner cap Remove Temperature Regulation Valve Remove 3 screws holding burner cap to burner tube Pull out on burner cap removing cap and burner venturi The hot surface ignitor is held in place on the burner venturi by one nut loosen nut and remove ignitor 10 Replace in reverse order NOTE Care must be used when handling the hot surface ignitor as they are quite fragile and may be easily broken if dropped or bumped eo oO pa QI MAIN BURNER ORIFICE REPLACEMENT Shut off power at main breaker
22. ck all wiring and connections for damage check all connections for damage Check all connections for tightness or proper location and check all wiring for visible damage Replace as needed Connect new hall effect to system and check for steady operation Measure the transformer primary for input if voltage is not present trace wiring back to the oven power source Measure the secondary output which will normally by 12 15 VAC Voltage across terminals 1 and 3 on the time temp display should read 12 15 VAC Terminals 1 2 and 2 3 should be 1 2 the voltage reading from 1 3 if the above secondary readings are not achieved replace transformer If proper voltage is present at terminals 1 2 and 3 on temperature display but the display is not lighted recheck all connections for tightness Temperature display is still not operating replace the temperature display Place the thermocouple of a pyrometer into the center of the top finger Be sure the tip of the thermocouple is not touching metal it must sense air temperature only The pyrometer will indicate oven temperature Measure DC millivolts of thermocouple at the temperature display See thermocouple chart on page 19 for proper readings Replace thermocouple if proper readings are not achieved If readings are correct on the thermocouple replace temperature display Impinger Il Advantage Service Manual Domestic REMOVAL INSTALLATION AND ADJUSTMENT IMPINGER ADVAN
23. current measurement and the meter must be connected in series If these readings are not achieved replace the hot surface ignitor NOTE The D C micro amp test must be conducted with the oven in low flame bypass operation Turn the temperature control to the lowest setting Low flame is on but no main flame Intermittent Heating Conveyor will not run 10 Power Supply Ignition Control NOTE Flame should be lit at this time Temperature Control Thermocouple Probe Temperature Set Potentiometer Temperature Solenoid Valve Thermal Overload of Main Fan and Burner Blower Motors Voltage Supply 10 Amp Fuse Fuseholder Fan Switch If there is sufficient micro amp current but the flame will not stay lit check for proper polarity of the 120 VAC power supply If there is sufficient micro amp current and the 120 VAC polarity is correct but the flame will not stay lit replace ignition control NOTE Check for proper ground connection on Ignition control Check for 120 VAC at terminal 7 to neutral on temperature control If no voltage trace voltage back through centrifugal switch and hi limit Turn the temperature adjustment knob to maximum temperature position and check for 120 VAC at the load terminal 48 and neutral If 120 VAC is present and unit is not heating refer to Temperature Solenoid Valve for next check If 120 VAC is not present proceed WITH POWER ON AND THERMOCOUPLE LEADS ATTACHED TO
24. eadings Replace thermocouple if proper readings are not achieved If readings are correct on the thermocouple replace temperature display Impinger Il Advantage Service Manual Domestic TROUBLESHOOTING GUIDE ELECTRIC OVENS MODEL 1130 000 A MODEL 1131 000 A MODEL 1132 000 A MODEL 1133 000 A 208 VAC 240 VAC 208 VAC 240 VAC SINGLE PHASE 60 HZ SINGLE PHASE 60 HZ THREE PHASE 60 HZ THREE PHASE 60 HZ REFER TO PROPER SCHEMATIC FOR IDENTIFIED COMPONENTS SYMPTOM Oven fan will not run POSSIBLE CAUSE Incoming Power Supply Fuses 10 Amp Fan and Controls Fuseholder Control Box High Limit Thermostat Switch Main Fan Main Fan Motor Capacitor No control box cooling Cooling Fan Motor No automatic control box cooling Incoming Power Supply Thermostat Cooling Fan Cooling Fan Motor Control box cooling fan continues to run Oven will not heat Main Fan Motor Thermostat Cooling Fan Air Pressure Switch Hi Limit Thermostat Cavity Impinger Il Advantage Service Manual Domestic Oven EVALUATION Check circuit breakers Rest if required Call power company in needed Check replace if necessary Check replace if necessary Terminals are normally closed but open at 140 F 5 60 2 8 C Check for over heating and reset thermostat Test for proper operation If it will not reset and hold then replace Check for continuity between switch terminals Check for opens s
25. ent Motor Control Board DC Gearmotor Magnet Impinger Il Advantage Service Manual Domestic This is a 0 to 10 K ohm 1 turn potentiometer With power off remove the black and white pot leads from the motor control board at terminals P1 P2 Place the meter leads on the black lead P2 and on the white lead P1 Rotating the pot slowly from low to high the meter reading should show an even transition from 0 to 10 K ohms 5 There should be no dead or open spots through out the 1 turn of the pot Check both leads to ground There should be no continuity to ground If any of the above checks fail replace the pot Check for 208 240 VAC input to the control board at terminals L1 and L2 If not present check wiring back to the oven fan switch If voltage is present at L1 and L2 check both fuses on control board 8A line and 1A armature check the VDC output at terminals A and A If voltage is present at terminals L1 and L2 and DC voltage is present at A and A but motor does nol run check gear motor as follows If DC voltage is present at A and A and the motor does not run first check the mini breaker and then the conveyor Refer to the next possible cause Check the leads to the motor for evidence of any shorts or opens and each lead to ground Check motor brushes From the top of the motor rotate motor shaft to determine if there is a locked rotor or a locked gear box use care so magnet and H S board are not dam
26. from motor shaft Replace as needed Check for any physical damage to hall effect sensor mounted on conveyor drive motor Check all wiring and connections for damage Check all connections for tightness or proper location and check all wiring for visible damage Replace as needed Connect new hall effect to system and check for steady operation 11 Temp display inoperative Temp Display inaccurate erratic or inoperative 12 Display Transformer Temp Display Thermocouple Measure the transformer primary for a nominal 120 VAC input if voltage is not present trace wiring back to the oven power source Measure the secondary output which will normally be 12 15 VAC Voltage across terminals 1 and 3 on the time temp display should read 12 15 VAC Terminals 1 2 and 2 3 should be 1 2 the voltage reading to 1 3 If the above secondary readings are not achieved replace transformer If proper voltage is present at terminals 1 2 and 3 on temperature display but the display is not lighted recheck all connections for tightness If temperature display is still not operating replace the temperature display Place the thermocouple of a pyrometer into the center of the top finger Be sure the tip of the thermocouple is not touching metal it must sense air temperature only The pyrometer will indicate oven temperature Measure DC millivolts of thermocouple at the temperature display See thermocouple chart on page 19 for proper r
27. he conveyor Refer to the next possible cause Check the leads to the motor for evidence of any shorts or opens and each lead to ground Check motor brushes From the top of the motor rotate motor shaft to determine if there is a locked rotor or a locked gear box use care so magnet and H S board are not damaged Replace motor as needed Check for any mechanical misalignment Also check for worn bearings A conveyor belt that is over tightened will cause excessive bearing wear and sometimes irregular speed Check power supply at the DC control board for the 120 VAC at board terminals L1 and L2 Place the test meter probes on terminals A and A With speed potentiometer set to maximum speed Approximately 2 min The meter reading should be approximately 100 VDC 3 if voltage is not steady within limits then the board is probably bad Always check the speed pot be sure it is okay before changing a board This test is not always 10096 accurate as this test is not performed at operating speeds However this test is the best method currently available If the DC control board is steady then the problem may be the motor or gearbox Check the brushes in the motor for excessive arching and or unusual wear Check the motor and gearbox from instruction located on Page 11 under possible cause listing conveyor gear motor Check to insure that the magnet cemented to shaft of conveyor drive motor has not been damaged or come loose
28. horts or grounds WITH POWER OFF Turn fan blade to check for locked rotor Check for opens shorts or grounds Check for main fan operation If not operating refer to Oven Fan Will Not Run 208 240 VAC should be present at the fan motor If voltage is present check for opens or shorts WITH POWER OFF Check for locked rotor of the fan motor Check circuit breakers Reset if required Call power company if needed This normally open thermostat should close when the temperature in the control box reaches 120 F 48 9 C If thermostat does to close replace 208 240 VAC should be present at the fan motor If voltage is present check for opens or short WITH POWER OFF Check for locked rotor of the fan motor This normally open thermostat should close at 120 F 48 9 C and reopen at 100 F 37 8 C Check for main fan operation If it is not operating refer to Oven fan will not run This normally open switch should close when the main fan is activated Adjust if necessary Refer to page 23 Replace if defective Terminals are normally closed If open reset and test oven for proper operation If thermostat will not hold for maximum oven temperature and oven is not exceeding temperature dial setting check for proper location of capillary bulb in its spring holder If above checks okay replace hi limit thermostat 13 Oven heats with switch off Intermittent Heating Conveyor will not run 14 Temperature Cont
29. nd motor is running replace motor Impinger Il Advantage Service Manual Domestic Burner Blower Motor Transformer Burner Centrifugal Switch of Burner Blower Motor Ignition Control Hot Surface Ignitor Ignition Control Gas Control Valves Flame will not stay lit Hot Surface Ignitor Impinger Il Advantage Service Manual Domestic Visually check to see if motor is running If not check for 120 VAC to motor at motor connector wire 5 and 22 If voltage is not present trace wiring back to fan switch If voltage is present and motor is not running check for opens shorts or grounds Also WITH POWER OFF check for locked rotor Primary is 120 VAC with 24 VAC secondary If 120 VAC is not present trace wiring back to Main Fan Centrifugal Switch If 120 VAC is present check for 24 VAC at secondary of transformer If no voltage is present replace transformer Check of 120 VAC at motor connector on wire 13 to neutral If voltage is not present trace wiring back to transformer If voltage is not present and motor is running replace the burner blower motor 24 volts should be present at 24 volt terminals If not present trace wiring back to centrifugal switch When 24 VAC is supplied the control switches 120 VAC from L1 and L2 to the hot surface ignitor if 120 VAC is not present at L1 and L2 trace wiring back to fan switch If 24 VAC and 120 VAC are present and 120 VAC is not across the hot surface ignitor
30. ot is adjusted to desired temperature The thermocouple will provide varying millivolts to the temperature controller The temperature control then supplies 208 240 VAC to the coil of the contactor at intermittent intervals to maintain the desired temperature The heat lamp is energized with the contactor Closing the on off switch supplies 120 VAC to the motor control board AC volts are converted to DC volts and are supplied to the conveyor motor at terminals A and A Adjustment of the speed control potentiometer will change resistance at terminals P1 and P2 varying the DC voltage to the motor The speed of the conveyor motor will increase or decrease as the DC voltage from the board increases or decreases respectively The conveyor control uses a sensor and magnet mounted on the conveyor motor that senses the motor speed Any change in motor load RPM is detected by the sensor and the voltage to the motor is adjusted accordingly Closing the switch supplies 120 VAC to the primary of the temperature display transformer The secondary of this transformer supplies 12 VAC to the temperature display The thermocouple supplies D C millivolts to the temperature display The display converts this millivolt reading to a temperature reading Impinger Il Advantage Service Manual Domestic SCHEMATIC 1116 000 A 1117 000 A ZH 09 05 000 2111 1400W ZH 09 05 Y 000 9LLL 1300W vNVIONI ANAYM 1903 OUI SITA DOAIDS POO
31. ouple fastens to the electronic temperature control N _ 2007 250 F 300 325 350 F 4007 425 9 37 10 9 43 10 9 49 10 954 10 972 10 9 77 10 9 80 10 9 83 10 9 89 10 995 10 10 00 66 _ 3 95 546 6 99 7 75 852 10 06 10 10 12 10 18 10 aor 412 ses 716 792 869 1024 11 01 Impinger Il Advantage Service Manual Domestic 19 ELECTRONIC TEMPERATURE CONTROL BOARD REPLACEMENT DI Remove control box cover Disconnect wires and molded connector and mark for reinstallation Depress nylon clips and remove circuit board from mounting bracket Reassemble in reverse order and check operation ELECTRONIC TEMPERATURE CONTROL BOARD CALIBRATION Place the thermocouple of your test meter through a finger hole in the top center of the oven With temperature dial fully counter clockwise align dial red line over CAL mark on temperature scale and tighten dial knob Turn temperature dial fully clockwise adjust pot on temperature control to achieve 575 F on temperature meter Set dial to 500 F Adjust dial to match actual temperature Seal adjustment pot with glyptol or nail polish TEMPERATURE CONTROL POTENTIOMETER REPLACEMENT QUIS Im DEI Shut off power at main breaker Remove control panel top and front cover Loosen two 2 allen screws and remove knob by sliding off shaft Remove mounting nut from potentiometer shaft and push out Unplug wire connector from control board Re
32. replace ON OFF SWITCH REPLACEMENT Beo Io 1 Shut off power at main breaker 2 Remove control box cover 3 Remove front panel 4 Depress spring clips on side of switch and push out 5 Remove wires from back of switch note wire number and location 6 Reassemble in reverse order and check system operation NOTE Make sure switch housing is fully seated in control box housing Impinger Il Advantage Service Manual Domestic 17 FUSE HOLDER REPLACEMENT Shut off power at main breaker Remove control box cover and front panel Remove wires from fuse holder and mark for reassembly Remove mounting screws or mounting nut on fuse holder Push fuse holder out Reassemble in reverse order CILE OO Tore THERMOSTAT CONTROL BOX HI LIMIT REPLACEMENT Shut off power at main breaker Remove control box cover and front panel Remove wires from thermostat and mark for reassembly Remove mounting screws and nuts and remove thermostat Reassemble in reverse order NOTE Push reset button on new thermostat DAWN COOLING FAN CONTROL BOX Shut off power at main breaker Remove control panel top and front cover Remove four 4 screws from the fan frame Disconnect cord and plug and remove fan Reassemble in reverse order SL Ps OO IN 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 thermo
33. rol Thermocouple Probe Temperature Control Potentiometer Mercury Contactor Heater Elements Mercury Contactor Thermal Overload of motor Voltage Supply 10 Amp Fuse Fuseholder Fan Switch Check for supply voltage at temperature control If no voltage is present trace wiring back to hi limit thermostat Turn the temperature adjustment knob to maximum temperature position and check for 208 240 VAC at the load terminals 7 and 8 If 208 240 VAC is present and unit is not heating refer to Mercury Contactor for next check If 208 240 VAC is not present proceed WITH POWER ON AND THERMOCOUPLE LEADS ATTACHED TO THE TEMPERATURE CONTROL BOARD measure D C millivolt output of these leads Refer to thermocouple chart in Section D for proper readings If these readings are not achieved replace thermocouple Disconnect the potentiometer leads from the board Place ohm meter test leads on the blue and green pot leads Reading should be 1 K ohms Place meter leads across the blue and purple pot leads and rotate knob from high to low Repeat on green and purple leads Check for even rise and fall of ohms reading to insure that there are no open or dead spots in the potentiometer Check each lead to ground for shorts Replace pot if it does not meet the above test Check for supply voltage to the contactor coil If voltage is present and the contactor will not activate replace the contactor Also check each contactor for proper
34. rs Check and or replace Check and or replace See procedure for checking on Page 10 Impinger Il Advantage Service Manual Domestic Speed Adjustment Potentiometer DC Motor Control Board Conveyor Gear Motor Conveyor Conveyor speed varying or Power Supply intermittent Motor Control Board DC Gearmotor Magnet Hall Effect Sensor Impinger Il Advantage Service Manual Domestic This is a 0 to 10 K ohm 1 turn potentiometer With power off remove the black and white pot leads from the motor control board at terminals P1 P2 Place the meter leads on the black lead P2 and on the white lead P1 Rotating the pot slowly from low to high the meter readings should show an even transition from 0 to 10 K ohms 5 There should be no dead or open spots through out the 1 turn of the pot Check both leads to ground There should be no continuity to ground If any of the above checks fail replace the pot Check for 120 VAC input to the control board at terminals L1 and L2 If not present check wiring back to the oven fan switch If 120 VAC is present at L1 and L2 check both fuses on control board 8A line and 1A armature check the VDC output at terminals A and A If 120 VAC is present at terminals L1 and L2 and DC voltage is present at A and A but the motor does not run check gear motor as follows If DC voltage is present at A and A and the motor does not run first check the mini breaker and then t
35. s and ignition should now occur When the centrifugal switch of the main fan motor closes power is applied to the temperature control The 1K ohm temperature pot is adjusted to desired temperature The thermocouple will provide varying millivolts to the temperature controller The temperature controller supplies 120 VAC to the solenoid valve at intermittent intervals to maintain desired temperature The heat lamp is energized with the solenoid valve Closing the on off switch supplies 120 VAC to the motor control board AC volts are converted to DC volts and are supplied to the conveyor motor at terminals A and A Adjustment of the speed control potentiometer will change resistance at terminals P1 and P2 varying the DC voltage to the motor The speed of the conveyor motor will increase or decrease as the DC voltage from the board increases or decreases respectively The conveyor control uses a sensor and magnet mounted on the conveyor motor that senses the motor speed Any change in motor load RPM is detected by the sensor and the voltage to the motor is adjusted accordingly Closing the switch supplies 120 VAC to the primary of the temperature display transformer The secondary of this transformer supplies 12 VAC to the temperature display The thermocouple supplies D C millivolts to the temperature display The display converts this millivolt reading to a temperature reading Impinger Il Advantage Service Manual Domestic 3 POW
36. stat Reassemble in reverse order S queo ors BURNER BLOWER MOTOR REPLACEMENT 1 Shut off power at main breaker 2 Remove control panel top and front cover 3 Unplug motor connector 4 Remove three 3 screws from blower tube at burner housing 5 Remove air shutter assembly from old motor for installation on new motor assembly 6 Reassemble in reverse order and check system operation NOTE Check air shutter at approximately 1 2 open and adjust to get a blue flame with an occasional tip of yellow under high flame A view port in the burner assembly should be used to observe flame HIGH LIMIT THERMOST AT REPLACEMENT 1 Remove control panel top and front cover 2 Remove conveyor and bottom finger assembly 3 Remove capillary bulb from bracket in oven chamber and pull through tube into control box 4 Remove two 2 wires from thermostat note wire numbers and location for reinstallation 5 Remove mounting nut and remove thermostat 6 Reassemble in reverse order making sure capillary tube is placed securely in the bracket NOTE Depress reset button to insure thermostat is set for operation 18 Impinger Il Advantage Service Manual Domestic BURNER TRANSFORMER REPLACEMENT Shut power off at main breaker Remove control panel top and front cover Remove two 2 wires on primary side note color and location Remove two 2 wires on secondary side note color and location Remove two 2 screws from transformer b
37. ween switch terminals Check for opens shorts or grounds WITH POWER OFF turn fan blade to check for locked rotor Check for shorts or grounds WARNING Capacitor has a stored charge discharge before testing Check main circuit breakers reset if required call power company if needed Check continuity between switch terminals 120 VAC should now be at the fan motor If voltage is present check motors for shorts or opens WITH POWER OFF Check for locked rotor Check circuit breakers reset if required Call the power company if needed Check the cooling fan thermostat Thermostat closes at 120 F and opens at 100 F With the cooling fan thermostat preheated check for continuity If switch is open replace 120 VAC should be at the motor If voltage is present check motor for shorts opens or grounds WITH POWER OFF check for locked rotor Check for adequate gas supply and closed manual gas shut offs Also check flexible gas line connection If not operating refer to Oven fan will not run Terminals are normally closed If open push in reset button and retest If thermostat will not hold for maximum oven temperature and oven is not exceeding temperature dial setting check for proper location of capillary bulb in its spring holder If above checks okay replace hi limit thermostat Check for 120 VAC at lead 9 located at 6 pin connector in raceway near the main fan motor to neutral If no voltage is present a
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