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Lincoln 1000 Convection Oven User Manual

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1. 5 6 These switches for Hertz settings OFF 60HZ amp ON 50HZ These switches are for temperature read out OFF Degrees amp ON Degrees c Turn power on d Calibrate time ON ON ON ON ON ON ON ON OFF OFF OFF OFF Place an object on the conveyor belt and time with a stopwatch the elapsed time for the object to travel through the oven Leading edge in to leading edge out Push in and hold the set button Adjust the time calibration pot on the rear of the module until 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 to 500 F allow temperature to stabilize Fine Tune temperature setting to achieve measured temperature swings from 497 F to 503 F So if actual temperature falls between 497 and 503 F the display must show 500 F Adjust temperature calibration pot to achieve a display reading of 500 260 RED YELLOW RED BLACK PURPLE PURPLE FROM TO TRANSFORMER SET SWITCH TO CONVEYOR MOTOR PICK UP To identify the module measure the width of the case Type 11 51 8 inches wide is 5 5 8 inches wide Type amp have 6 position dip switch modu
2. EXE 15 SCHEMATIC 1202 1208 SIN O14791 amp ABOVE u 16 SCMEMATIG T204 9 15 17 SCHEMATIC 7 1240 1241 S N 014279 amp 4 442222222 1 10 trn nnn nnns 18 SGHEMATIG 71240 1241 S N 0714280 ABOVE 19 TROUBLESHOOTING GUIDE 1000 8 1200 gt awia 20 20 TROUBLESHO GO BING Le 25 ELECT RIG OVENS MODEL SERIES 10008 te e ces eee 25 REMOVAL INSTALLATION amp ADJUSTMENTS nca c i n c Re 32 PARES 7 MODEL SERIES 1000 S 1200 GENERAL supper 60 BLOW UP 000 1 ZOO EINE A Ge ee 61 PAR IS JACGGESS DOOR amp T030 ten eet dams eiut 62 BLOW UP ACCESS DOOR S1050 DOOR uD 63 PARTS MODEL 1000 1001 1050 1051 1004 81005 S N 100 TO 4389 64 BLOW UP 1000 1001 1050 1051 1004 amp 1005 S N 100 TO 4389 65 PARTS MODEL 1000 1001 1004 AND 1005 S N 4390 amp ABOVE 66 BLOW UP 1000 1001 1004 1005 S N 4390 amp AB
3. P 3636 Burner Blower Motor Kit 0 ca 369009 Thermocouple J nD l RH 36909 Temperature Gauge Gas Valve Body Only NAT LP 369393 Ignition Control NAT amp LP U 369344 PilotShutOffvVave J J j V 36906 Temperature Control Valve W 36902 Main Burner Orifice Gas 1 399 MainBumerOrfice LP 390 PilotOrifice LP DD 369067 jArSwithTube O Z O 64 Impinger 1000 Series Service Manual Domestic BLOW 1000 1001 1050 1051 1004 amp 1005 S N 100 4389 Bd DV SSA 5 m m ER an A rr m lt XI S IY TX 5 CC Impinger 1000 Series Service Manual Domestic 65 MODEL 1000 1001 1004 AND 1005 S N 4390 amp ABOVE LETTER P N DESCRIPTION B 369248 Knb 369064 Conveyor Speed Control Dial Non Digital Display Ovens _______ D 369013 Fuse 3Amp 3690014 Fuse10Amp ___ 1 36158 7 10 S N 4390 amp Above __ 6__ _ _____ ____ 350705 JjSwthONOFF O 296920 Double Pole Fan Switch 000 1 361044 JPibctlight24VAC 24 _____ 36957 Cooling Fan Thermostat O Z O 1 SBEPAGESR y O L 3690258 JBlwerAirS
4. NJAO 1Y LS0WH3H1 LYLSONHIHL gt TJOHLNOO BANENE HOLIMS JHNSSIUd HIV 94 34 va 63 142 152 282142 17 Impinger 1000 Series Service Manual Domestic 1240 1241 S N 014279 BELOW 6L2b LO 01 5424 81295 2721 0201 S THQOW u3NBna HOLAS ES VE 3614 9454 OVA 2 JOHLNOI HINHOJSNYEL HX HOAJANOD HOLIMS ts H3WHO3GNYHI 3503 4 4 OVA 921 LL H3NHOdSNVUI NY4N3AO HOLIMS 18 VOL HOLOM NY4 3574 23 HOLINDI XuYdS 10H1NOO JUNLVHIdNAL OINOH1O313 943 LOUd FATWA ZA uaNung tu 8 ATHFGISSY 104 235 IUNLVYIdNIL HA HOLOM AYTAY Y 66 104 dWILIML WOVE WAGOONT 1 2 40 8 HOASANOO 299 18 355 LOd3HfuvH3dW3l TWOUdO 130 HOASANOO 99 HOLSINHJHL HL HINYUNE HOLOM H3 Y3H8 282182 21 HOLON SW G38S 12 H313WOHOVL ZL LL HOLON LYLSONUIHL 219 AV1dSIO 1 3 H LIMS 95 YOLON ONTOOS TOU
5. 10114 x 14914 9411005 80108 ZH S 30112942 12 NOLLVINSIH 3unlvH3d43l N3A0 9417002 08 1081N02 LVISOWUIHL 118 dW31 3Wll TZL CIOV8 1NOuJ313N9VM 1041402 YINSNG Ed 3dAL 31anO20wH3Hl IL MOLVOLONI HINHNG 1 HOLIMS 34065344 ULV N er 5 i lt T MO T38 5 0 CN TVIHIS 2 er CN T um gt j S QE T i Sav i _ 54 35018 TVNIWHIL ep 401100 591510 062710 TIYIS 19 Impinger 1000 Series Service Manual Domestic TROUBLESHOOTING 1000 amp 1200 GAS OVENS POSSIBLE CAUSE Oven fan will not run Incoming Power Supply Check breakers Reset if required Call Power Co if needed NOTE Export Ovens For some export ovens there is control circuit step down transformer This transformer steps down supply voltage to 120 VAG If main fan will not run the secondary of this transformer must be checked for 120 VAC output Check specific oven model schematic for circuit location Oven Fan Fuse s Fuse Holder Fan Switch Check continuity between switch terminals Main Relay Check continuity to 120 VAG coil Check for power to relay coil 120 Check for 208 240 to relay terminals Visu
6. GAS OVENS Shut off power at main breaker Remove control panel top and front panel Remove access cover 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 HEAT LIGHT 125 VAC ELECTRIC OVENS Shut off power at main breaker Remove control panel top and front panel Remove two 2 wires from heat light note number and location Grasp of light assembly and slide sideways to remove Reassemble in reverse order and check THERMOSTAT HI LIMIT ELECTRIC OVENS Shut off power at main breaker Remove control panel top and front cover Remove the two 2 wires from the thermostat located on the back wall of the control box Remove two 2 mounting screws Reassemble in reverse order NOTE Be sure to press red reset button on new thermostat to ensure that it is in the closed position Impinger 1000 Series Service Manual Domestic 41 DREG CIF CO ANN cd Sas dum IE po 42 PILOT ORIFICE BURNER Shut off power at main breaker Shut off gas supply 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 Shut off gas supply Unbolt temperature control valve assembly see T
7. 369112 Ball Catch L 350257 Scew6 32x3 8 02502 369229 Adapter Plate 369337 Retainer NewStyle 00000020004 0 369207 Retainer Old Style P 369004 DoorLatch amp Cath 369031 Door Assy Z 11 11 1 1 1 369015 DoorGasket C rc r C 369049 VerticalRetainingPlate ____ 360581 Retaining Plate Screw 1 Horizontal Retaining Plate V 369003 W 23699200 MWindow Frame Bottom X 3995 Glass Access Window 369927 Window Frame Screw 10 32 x 9369031 7 5 8 32 38 369929 L lt gt x lt gt 62 Impinger 1000 Series Service Manual Domestic BLOW ACCESS DOOR amp 1050 DOOR Impinger 1000 Series Service Manual Domestic 63 PARTS MODEL 1000 1001 1050 1051 1004 amp 1005 S N 100 4389 LETTER PART NO DESCRIPTION Blower Air Switch H 369022 _ Prior to S N 4390 2 Bush _ 2 369114 Brushlap 12 369115 BrshSpig 0022220 1 360802 Relay 369008 D C ConveyorControler S N 4389 8 Below sd L 36900 Reverse Switch w Harness Prior to S N 4390 M 36907 Temperature Sensing Switch O 3690531 Transformer 120 24V 40VA
8. Reassemble in reverse order making sure capillary tube is placed securely in the wire form NOTE Depress reset button to insure thermostat is set for operation SPARK GENERATOR REPLACEMENT Remove control panel top and front cover Loosen two 2 locking screws approx 1 2 turn on ignition control and remove front portion of relay exposing terminal strip Hemove two 2 wires for spark generator Unplug connector on bottom of spark generator Remove two 2 mounting screws and remove generator assembly Reassemble in reverse order and check system operation SOLENOID VALVE REPLACEMENT Remove control panel top and front cover Disconnect pipe union just above gas valve assembly Disconnect two 2 wires from solenoid note wire number and location for reinstallation Remove four 4 nuts from main orifice burner bracket and remove assembly Replace valve and reassemble in reverse order After assembly check all fittings for leaks and check system operation FLOW BURNER ALARM REPLACEMENT Remove control panel top and front cover Remove two 2 wires from alarm note wire numbers and location Remove retainer cover from alarm and remove assembly from mounting bracket in reverse order and check Impinger 1000 Series Service Manual Domestic pop I SES deu FR ONS Sa DE BURNER ALARM LIGHT REPLACEMENT Remove control panel top and front cover Remove two 2 wi
9. Hemowve air shutter held by 3 screws Loosen set screw on blower wheel hub and pull straight out Reassemble 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 SWITCH Shut off power at main breaker Remove front control compartment cover Remove air switch cover plate Disconnect wiring and mark for reassembly Loosen 2 screws and remove air switch Disconnect 1 4 air tube Reassemble in reverse order Turn on power and calibrate air switch as follows Turn adjusting screw counter clockwise to full out position Turn main fan and heat switch on Turn adjusting screw clockwise until heat shuts off Turn adjusting screw counterclockwise 1 4 turn and unit should heat NOTE Test as follows Oven must be tested in heated condition Remove main fan fuse Main fan should shut down deactivating air switch causing heat to shut off in approximately 5 to 25 seconds Impinger 1000 Series Service Manual Domestic 35 QU Ow CD Tocem 36 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 thermostal or solenoid valve Remove four 4 phillips screws that secure the burner backing plate Remove burner assembly from housing the
10. Indicator Light TEMPERATURE When the Heat Switch is closed 120 VAC is supplied to the Temperature Control CONTROL The Temperature Control Potentiometer 2 5K ohm is adjusted to desired temperature The Thermocouple will provide varying millivolts to the Temperature Controller The Temperature Controller switches the L2 line of the Contactor coils at intermittent intervals to maintain desired temperature 4 Impinger 1000 Series Service Manual Domestic CONVEYOR DRIVE Closing the Fan Switch and the normally open Conveyor Switch supplies 120 S N 100 to 4389 through 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 D P D T Reversing Switch Adjustment of the Speed Control Potentiometer 500 ohm 10 turn will change resistance at terminals 51 52 and S3 varying the D C voltage to the motor The speed of the Conveyor Motor will increase or decrease as the voltage from the Motor Control Board increases or decreases respectively S N 4390 and UP Closing the fan switch and the normally open conveyor switch supplies 120 to the Motor Control Board AG volts are converted to DC volts and are supplied to the Conveyor Motor at terminals A and A Adjustment of the Speed Control Potentiometer 5 000 ohm 10 turn will change resistance at terminals P1 P2 and P3 varying the DC voltage to the Conveyor Motor The s
11. When replacing 369174 with new 369728 turn temperature control to its maximum position and allow oven 30 minute preheat then calibrate board as follows Place temperature probe between top fingers 2 and 3 making sure probe is not touching any metal and adjust potentiometer P6 to a Maximum temperature of 575 F RED POTENTIOMETER transformer marked with 2 5 K OHMS green gold or silver dot L 1120 VAC THERMOCOUPLE TYPE J Impinger 1000 Series Service Manual Domestic 57 DTS ole DUE SO cs BRORS 58 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 in reverse order and check system operation NOTE If temperature control knob is type with temperature numbers on it adjust it to agree with the time temp display for knobs with reference numbers only 9 is 500 F 260 C RELAY ASSEMBLY BURNER BLOWER MOTOR REPLACEMENT Remove control box top and front cover Remove cover from relay box Remove wire from ignition control 20 Remove two 2 wires from transformer 21 and 23 Remove wire from burner blower motor connector plug requires pin extractor tool 369600 73 Remo
12. also energized To check disconnect the ignitor lead from the ignition control Place the terminal of ignitor lead approximately 1 8 from terminal post on Ignition Control Spark should jump the 1 8 gap If no spark is present replace ignition control If the ignition control is supplied with 24 VAC and the pilot valve in gas valve and ignitor circuits No Pilot Pilot Shut off Valve If no pilot flame is visible check to see that the pilot shut off valve is open shut off valve is located between gas valve and burner Pilot Tube Check 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 or pilot shut off valve pilot orifice for obstructions Replace as needed Burner Ignitor Check the burner ignitor head for any obstructions also check for frayed or broken wire any type of damage to spark gap 100 in 2 5 mm If there is visible damage replace ignitor assembly 22 Impinger 1000 Series Service Manual Domestic Spark Ignitor Flame Sensor There should be a visible pilot flame at this time Pilot flame but no main NOTE The Honeywell Ignition Control uses the flame spark ignitor as the flame sensor If spark continues check for proper ground connections at Ignition Control Check pilot orifice for any partial blockage If the above checks OK replace ignition control spark stops wh
13. 1 1 2 INCH CONE y 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 RELAY D P S T Shut off power at main breaker Remove control panel top and front cover cover from relay box Disconnect all wires and mark for replacement relay by removing two 2 mounting screws Reassemble in reverse order COOL DOWN SWITCH Shut off power at main breaker Remove control panel top and front cover Remove the two 2 wires from the switch located the back wall of the control box Remove two 2 screws from the switch bracket in reverse order check condition of teflon insulator and be sure a aluminum sensing rod contacts the switch body 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 female cord receptacle and remove fan Reassemble in reverse order Impinger 1000 Series Service Manual Domestic 33 OV elo 34 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 NOTE Complete burner blower motor assembly with contr
14. 14 VAC depending on input with a center tap is supplied at terminals 1 2 and 3 of the Time Temp Display The center tap is terminal 2 The display works on a balanced input and center tap voltage to each leg must be 1 2 the total reading The speed side of the Time Temp Display uses a slotted disc cemented to tach coupling to break the infra red light beam of the optical switch mounted on gear motor producing electrical pulses that are transmitted to the display The display converts these pulses into a read out of minutes and seconds The temperature portion of the display uses a Thermistor Probe to sense oven temperature The thermistor outputs a resistance proportional to the oven temperature This resistance Is then converted by the display into a temperature reading NOTE The 1200 Series Ovens use a Double Pole Double Throw Switch to connect the two Optical Encoder Assemblies to the Time Temp Display By activating the switch either the front or rear belt speed can be shown by the Time Temp Display SEQUENCE OF OPERATIONS 1022 1023 1202 1203 MODEL 1022 120 208 VAC 3 PHASE MODEL 1023 120 240 VAC 3 PHASE MODEL 1202 120 208 VAC 3 PHASE DUAL BELT MODEL 1203 120 240 VAC 3 PHASE DUAL BELT POWER SUPPLY Electrical Power to be supplied to the Oven by a five conductor service Voltage from the black conductor to the white conductor is 120 VAC Black conductor is Hot Red conductor is Hot Orange conductor is
15. Domestic 1040 1041 S N 014279 BELOW 622910 91 si quinu 1901 0601 ST3GON OVA P 10H1NOO H3NHhH H3HOdSNYHL OVA 971 L L H3HO4SNYHL NIVA 10714 3A1YA NOLLVINDIU INN vd3d31 A18N3SSY 104 3H YH3dW31 HOLSINHIHL f H313WOHOV JYDNAIMLNID HOLIMS 135 JNU HOLMS BANENE H LIAS HOLIMS HOLIMS HOLINDI UVIS HINUNE Av13u HOLON UIGODNI HOLON 9NI1002 HOLON N3AO 90100 YINUNG MOSN3S 3WY 3 VE HOA3ANOO 3504 UINHOJSNVUL dNILINU 3573 VOL HOLOW 3604 2313 A18W3SSY 104 J04LNOI HOA3ANOO NOHID 5 uOLIOYdYO ONTIOOS N3AO LYLSONH3HL XOS TOHLNOO LYLSONUIKL UINUNE HOLIMS 340 343 Impinger 1000 Series Service Manual Domestic 12 1040 1041 S N 014280 amp ABOVE 642710 TVIHIS 1701 pue 0501 STSGOW 35018 1118 31510 9 un EY QU 3414 XX 71031402 u3WH
16. Encoder Assemblies to the Time Temp Display By activating the switch either the front or rear belt speed be shown by the Time Temp Display SEQUENCE OF OPERATIONS 1040 1041 1240 1241 MODEL 1040 120 230 VAG 60HZ NATURAL GAS MODEL 1041 120 230 60HZ L P GAS MODEL 1240 120 230 VAG 60HZ NATURAL GAS DUAL BELT MODEL 1241 120 230 60HZ L P GAS DUAL BELT POWER SUPPLY Electrical Power to be supplied to the Oven by four conductor service Voltage from the black conductor to the white conductor is 120 VAG Black conductor is Hot Red conductor is Hot White conductor is Dedicated Neutral Green conductor is Ground CONTROL BOX AUTO When the temperature in the Control Box reaches 120 F 3 the Cooling Fan COOL DOWN Thermostat will switch power to the Control Box Cooling Fan The Thermostat will interrupt power to the Cooling Fan when the Control Box temperature falls to 100 F MAIN FAN CIRCUIT Electrical power is permanently supplied to the normally open contacts of the Double Pole Main Fan Relay the Cooling Fan Thermostat the normally open Main Fan Switch and the normally open Cool Down Thermostat thermostat closes at 160 F opens at 140 Closing the Main Fan Switch energizes the coil of the Relay The normally open contacts now close energizing the Main Fan Motor through two 10A fuses and the Cooling Fan Closing the Fan Switch also supplies power to the 12 6 V
17. HOA3ANOO 3 4 Yr H3NHO3SNYH dA ISNI HOLONW 3Sn3 1081NOQO 3414143431 SINOH12313 HOLOYANOO HOLOYINOO HOLOVINOO 9 ATENISSV 104 Ya A18N3SS Y 104 8 IOMLNOO HOA3ANOO YL O 210 u3xvaug unotio GIN S L YOLDVdVI LVLSONHIHL gt HOLS 3UNSSAUd 15 Impinger 1000 Series Service Manual Domestic 1202 1203 S N 014791 amp ABOVE 3AO8V 0627 LO VIHIS 8051 pue 2021 513 N3A0 30 1 4 SHJ KWNN 3HIM CADVE LNOUS 1031409 2 YIKHOISNYUL 13 OYAS ZL 1 1 H3WH0dSNYHL dH31 38 1 18 355 104 1 4 31 123135 3811 33v8 21186 WANITA HOTH LVLSOWYIHL LINIT HOIH 1YLSOWH3HL 211 5 S 3 o4 H2LIMS NJAO HILIMS 58012 1 02 PH 801084 NJAO AY1398 1337 NY3 9411003 YOLOW 4249 1103 3 80104 x NYJ 9 411002 80 08 NJAO 801084 9919 1043 LINDYW 01 210 1 1V3H dWY1l 32V8 1NOH3 305436 123333 TVH M OOSP H3lY3H Lh VE LVI
18. NJAO 1Y LSOWH3HLI HOLIMS 39055399 HIV Impinger 1000 Series Service Manual Domestic 10 1022 1023 S N 019078 amp ABOVE 840610 N S 6001 0220 ST3dON 0 no TT 1 54 nn 32078 NOI 119191510 9NIHIM 1N34313 9NILY3H SU3EW N 3041402 H3WHOJSNYHl 19 OYAS Cl 1 1 H3WuOdSNYul 74510 dW31 3Ml1 ATGWISSY 104 3MNLYHJAWIL f 3441 MANITd LIMIT IH 7 LY1SORU3HL LIMIT IH LY 150N83HL JUNLVYIdWIL 211 5 9 HOLIMS obi pee SERB NY4 NJAO 211 5 dc SUO 12V INOJ HOLOM NJAO AY3H YOAIANOD HOLOW 9811002 40108 HOlON L3NDVH SOLVIIONI 1Y3H dWY1 HOSN3S 123443 TYH M OOSP d31VY3H LE TOHLNOI 3UNLVHIdNIL 3Snj Qu 3514 64 353 83 4 VOS uilv3H 3514 93 13 3uflYM3dW3l 910419373 104 WOA3ANO 1041409 40A3ANO 574 74011949 9411005 N3A0 LYLSOWH3HL HOLING 38055384 213 v g 22 JE bd 9 02 80 f 3 6 GU Deo 6 6 013 53 83 5 6 11 Impinger 1000 Series Service Manual
19. Off Inlet Panel 16 Fan S N begins with a Q 1 2 _____ Not Shown Replaces N L A Fan Assy with New Style Oven Back Assy Not Shown Replaces Fan Assy with New Style Oven back Assy pg 78 Impinger 1000 Series Service Manual Domestic BLOW OVEN BACK GAS 2 gt 79 Impinger 1000 Series Service Manual Domestic PARTS OVEN ELECTRIC LETTER P N DESCRIPTION 369212 SIN begins 369214 Motor Hz 240V _____ o OO D 369807 Oven Back Assy SN 4768 amp Above 369287 208VHeaingElemen O O 369315 220VHeaingBlemen 369647 G 3992 Fan SIN begins with a Q ATT See Detail Page 86 1 SeeCowesinKisBeow 36908 Motor Mount Support Assy SIN 04767 amp Below 369547 Form Thermostat Bulb Electric Ovens 11 TT Reblaces N L A Fan Assy with New Style Oven Back Assy gt Replaces Fan Assy with New Style Oven Back Assy pf Replaces N L A Fan Assy with New Style Oven Back Assy Od Reblaces Fan Assy with New Style Oven Back Assy r pe 80 Impinger 1000 Series Service Manual Domestic BLOW OVEN BACK ELECTRIC 81 Impinger 1000 Series Service Manual Domestic PARTS CON
20. 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 BURNER IGNITOR Shut off power at main breaker Remove control panel top and front cover Remove burner assembly Remove flame sensor Remove pilot shield and pilot shield extension Remove burner igniter Reassemble in reverse order NOTE Be sure to reconnect burner igniter cable to ignition control TRANSFORMER 120 24 VAC Remove control panel top and front cover Remove control box cover from burner blower motor NOTE The complete burner blower motor assembly with control box PN 369359 is no longer available The blower motor assembly PN 369265 has been changed to burner motor kit PN 369366 If the burner blower motor or 24V transformer PN 369531 are replaced the following modifications must be made Shut off power at main breaker Remove control box and components from burner blower motor Mount transformer on air switch bracket use transformer as template Discard control box and relay Material needed 29 drill bit and 8 x 3 8 self tapping screws each See Burner blower motor section for wiring information Replace covers and check system operation BURNER LIGHT 24
21. VAC 60HZ L P GAS MODEL 1004 120 230 60HZ NATURAL GAS MODEL 1005 120 230 60HZ L P GAS MODEL 1200 120 230 60HZ NATURAL GAS DUAL BELT MODEL 1201 120 230 60HZ GAS DUAL BELT MODEL 1204 120 230 60HZ NATURAL GAS DUAL BELT MODEL 1205 120 230 VAC 60HZ L P GAS DUAL BELT POWER SUPPLY CONTROL BOX AUTO COOL DOWN MAIN FAN CIRCUIT TRANSFORMER 12 6 BURNER CIRCUIT CONVEYOR DRIVE S N 100 to 4389 S N 4390 and UP Impinger I 1000 Series Service Manual Domestic Electrical Power to be supplied to the Oven by a four conductor service Voltage from the black conductor to the white conductor is 120 VAC Black conductor is Hot Red conductor is Hot White conductor is Dedicated Neutral Green conductor is Ground When the temperature in the Control Box reaches 120 F 3 the Cooling Fan Thermostat will switch power to the Control Box Cooling Fan The Thermostat will interrupt power to the Cooling Fan when the Control Box temperature falls to 100 F Electrical power is permanently supplied to the normally open contacts of the Double Pole Main Fan Relay the Cooling Fan Thermostat the normally open Main Fan Switch and the normally open Cool Down Thermostat thermostat closes at 160 F and opens at 140 F Closing the Main Fan Switch energizes the coil of the Relay The normally open contacts now close energizing the Main Fan Motor t
22. and the 1 amp fuses on the control board Also reset and check the mini breaker in the armature line to the gearmotor If 120 VAC is present at terminals L1 and L2 but DC voltage is not present at and A providing the 1 amp and 4 amp fuses are good replace the board If DC voltage is present at and A but motor does not run check gear motor as follows 27 Gear Motor 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 If the motor fails the above tests replace motor Remove dust cover from the top of the motor and rotate motor to determine if there is a locked rotor or a locked gear box use care so encoder disc is not damaged Conveyor Check for any mechanical misalignment or improper adjustment Also check for worn bearings The Installation and Operations Manual shows proper conveyor belt adjustment conveyor belt that is over tightened will cause excessive bearing wear and sometimes irregular speed Conveyor speed Power Supply Check power supply at the DC control board for the varying or intermittent 120 VAC at board terminals L1 and L2 If voltage is not present check main circuit breakers Tach generator and DC Motor With the power to the DC motor control board Control Board turned off remove the
23. check for 24 at pin 6 and the ground bar ignition control valve assembly If the burner blower motor is running and there is no voltage at pin 6 and the ground bar on the ignition control valve replace the burner blower motor Ignition Control and Valve Check for 24 VAC supply to the ignition control and Assembly valve assembly at pin 6 and the ground bar If voltage is present check for 24 VAC across pin 1 and the ground bar pilot 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 lead from the bottom of ignition control Place female terminal of ignitor lead approximately 1 8 from terminal post on ignition control Spark should jump the 1 8 gap no spark 1 present replace ignition control No Pilot If the ignition control is supplied with 24 VAG and the pilot valve internal to valve assembly and ignitor circuits are energized visually check for pilot flame This may be done by opening the small inspection door on the end of the burner or by opening the main oven door and looking under the lower finger housings on the right side of the oven If no pilot flame is visible check the following Pilot Shut off Valve Check to see that pilot shut off valve is open shut off valve is located between ignition control and valve assembly and burner Pilot T
24. fan off air pressure switch out 1 on 2 off 3 on 4 off 5 off 6 off Burner Motor Relay bad Impinger 1000 Series Service Manual Domestic 23 2 3 on 4 off 5 off 6 off 2 3 4 on 5 off 6 off 2 3on40n50n 6 off 1 2 4 5 6 24 Burner Motor Centrifugal Switch bad Ignition Control bad Pilot Shield missing or warped Flame Sensor bad Pilot Orifice plugged or Gas Valve bad Unit still not working Main Orifice plugged Gas Valve bad Temperature Control bad However Main Orifice would not be intermittent problem Impinger 1000 Series Service Manual Domestic TROUBLESHOOTING GUIDE ELECTRIC OVENS MODEL SERIES 1000 amp 1200 POSSIBLE CAUSE Oven fan will not run Incoming Power Supply Check breakers Reset if required Call Power Co if needed NOTE Export Ovens For some export ovens there is a control circuit step down transformer This transformer steps down supply voltage to 120 VAC If main fan will not run the secondary this transformer must be checked for 120 VAC output Check specific oven model schematic for circuit location Oven Fan Fuse s Fuse Holder Fan Switch Main Relay Check continuity to 120 VAC coil Check for power to the relay coil 120 VAC Check for 208 220 240 VAC to relay terminals Visually check for contact pull in Fan Motor Check for opens shorts or grounds WITH POWER OFF Turn Fan Blade to che
25. leads from terminals T1 and T2 Place the test leads of a digital meter on the tach leads turn power on and the meter reading should be approximately 30 to 35 VDC This reading should be steady within 0 2 to 0 3 VDC If this reading is not within 0 5 VDC place the test meter probes on terminals A and A The meter reading should be approximately 150 to 160 VDC and steady within approximately 2 VDC If the tach voltage is unsteady and the board output is steady check the coupling for loose set screws or any type of damage If the coupling checks good the tach is usually bad If the board voltage output is unsteady beyond limits then the board is probably bad Always check the speed pot Be sure itis okay before changing a board or tach 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 Readjustment should always be attempted at least once before replacement See procedure for board adjustment on page 44 DC Gearmotor 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 27 under possible cause listing Conveyor gear motor Conveyor will not Voltage Supply Check incoming voltage supply at Line 1 to neutral run S N Q19078 amp There should be a voltage reading of 120 VAC U
26. not achieved replace flame sensor Also check for any type of damage to flame sensor wire and connections Ignition Control and Valve If there is a pilot flame and there is sufficient micro Assembly amp current at terminal 4 check for 24 that the main valve internal to valve assembly has opened Connect a manometer to the manifold gas pressure tap located on the back side of the ignition control and valve assembly If no gas is present replace ignition control and valve assembly For ovens with Centrifugal Switch of Burner Check for 24 VAC output from secondary of Honeywell ignition Blower Motor transformer If voltage is present check for 24 control at terminals marked 24V 24V on Ignition Control If the Burner Blower Motor is running and there is no voltage at terminals 24V and 24V gnd on the ignition control replace the Burner Blower Motor These Ignition Controls have 30 second pre purge Delay and 15 second lock out time The Ignition Control will try for ignition for 15 seconds and then shut off To Re try for ignition turn off burner switch wait 30 seconds and re try ignition Ignition Control Check for 24 VAC supply to ignition control at terminals 24V and 24V If voltage is present check for 24V at terminal P V Pilot Valve and gnd If voltage is not present replace Ignition Control If the pilot valve is energized check to see that the high voltage ignitor circuit is
27. proper adjustment of the optical encoder assembly TACH GENERATOR Shut off power at main breaker Remove conveyor motor assembly Remove tach cover plate and tach leads Mark lead position Remove 2 slotted screws from dust cover base and remove dust cover Loosen coupling set screw 050 inch allen wrench Remove tach bracket from motor Remove 4 screws from base of tach and tach is now free for removal in reverse order Maintain spacing of 010 minimum between tach Bracket and coupler hub NOTE If anew tach generator is installed the D C motor control board MUST BE HECALIBRATED There is no repair procedure for the tach If defective replace CONVEYOR MOTOR CONTROL BOARD Shut off power at main breaker Remove control panel top and front cover cover from relay box SN 100 4389 BODINE SYSTEM Remove wires from terminal strip on control board making sure to mark wires so they will be reinserted on the proper terminal Remove the four 4 hex head screws Reassemble in reverse order and calibrate See D C Motor Control Board Calibration Bodine System SN 4390 14974 1000 SERIES GAS OVENS SN 4390 14791 1200 SERIES GAS OVENS Make note of wire number and location before removing them from the control board POLARITY BETWEEN T1 T2 AND AND IS CRITICAL The bottom mounting screw need only be loosened as the mounting bracket for the control board is slotted Remove top two
28. proper location of sensing bulb in its spring holder If hi limit is still tripping replace rated for 368 C 3 Amp Temperature Control Check and or Replace Fuse Fuseholder Check and or replace Impinger 1000 Series Service Manual Domestic Temperature Control Board Check for 120 VAC input to temperature control board If not present check wiring from fuse holder to temperature control board Turn the temperature adjustment dial to the maximum temperature position Check for 120 VAC at coil of mercury contactor s Next short the leads of thermocouple on the temperature control board check for 120 VAC at coil of mercury contactor s If voltage is not present replace temperature control board If voltage is present proceed Temperature Control Potentiometer is 0 to 2 5K ohm WITH POWER Potentiometer OFF remove the leads from the temperature control board terminals 1 2 and 3 and measure ohms from black to white leads The ohm reading should be 0 to approximately 2 5K ohms as the dial Thermocouple Probe thermocouple leads from the temperature control board and measure the millivolt output of the leads Refer to chart in adjustment section for proper millivolt readings Mercury Contactor s Check for 120 VAC to the contactor coil If voltage is present and contactor will not activate replace the contactor s Also check each contactor for proper high voltage input and output 50 Amp Fuses If there is
29. temperature with the reading at the time temp display If the temperature readings match recalibrate or replace time temp display If the readings do not match replace thermocouple probe Erratic time temp display If strange or unusual behavior is experienced such as a rolling of numbers lock up at a given number first check for a display circuit lock up This can be caused by a voltage spike or surge To eliminate this condition remove power from the time temp display by shutting off the main fan switch or if display stays on older models circuit breaker interruption may be required This should eliminate the problem If the problem continues jumper the two luses 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 company for evaluation Temp Display inaccurate Perform the power supply check the thermistor erratic or inoperative probe check and then perform the time temp simulator test Refer to page 51 for instructions Remember when using the time temp simulator remove all the leads from the back of the display except the 3 power leads After completion of this test and if reinstalling back into the oven the dip switches must be reset for oven operation Time display inaccurate Perform all checks as in the above evaluation If erratic or inoperative the time check is okay r
30. wall assembly before removal to aid in reassembly Remove the eight 8 hex head bolts from the motor mount and slide the motor assembly out of the oven back Remove heat slinger if so equipped by taking out the two 2 head cap screws then remove motor by taking off motor clamp and removing the four 4 mounting nuts and washers Reassemble in reverse order When reassembling trim the motor mount bolts off after the motor is mounted if required Be sure the heat slinger if so equipped is set at the proper clearance 3 8 approximately with 1 16 clearance at motor mount bolts 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 Torque specs on bolts 150 in Ib torque CAPACITOR MOTOR Shut off power at main breaker Hemove motor cover from back of oven Discharge capacitor Remove and replace FAN MAIN Shut off power at main breaker Remove back assembly See motor main fan S N 100 4612 GAS S N 100 4767 ELECTRIC Impinger 1000 Series Service Manual Domestic m a ee ARES Nr FAN BLADE 9 3 4 1 8 IN COOLING Reinstall and locate fan so that the front of fan blades 9 3 4 from inside of oven back See Drawing S N 4613 amp Above GAS S N 4768 amp Above ELECTRIC FAN SPIDER NOTE MEASUREMENT MUST BE k MADE FROM CONE TO FAN SPIDER FAN HUB
31. 2 mounting screws and remove control board NOTE Exchange boards on the mounting bracket before reinstallation Reassemble in reverse order and calibrate See D C Motor Control Board Calibration SN 14975 AND ABOVE 1000 SERIES GAS OVENS SN 14792 AND ABOVE 1200 SERIES GAS OVENS Make note of wire numbers and location before removing them from the control board The bottom mounting screw need only be loosened as the mounting bracket for the control board is slotted Remove top two 2 mounting screws and remove control board Reassemble in reverse order and calibrate See Stepper Control Adjustment D C MOTOR CONTROL BOARD CALIBRATION SN 100 to 4389 BODINE SYSTEM Remove control panel top and front cover cover from relay box Identify D C control board and calibrate as per the following instructions NOTE THE USE OF A DIGITAL VOLTMETER IS NECESSARY FOR PROPER ADJUSTMENT Check incoming AC voltage at L1 and L2 Should be 120 10 Check field voltage at terminals F1 and F2 Should be 100 VDC 10 volts Turn speed control dial clockwise to its maximum speed position Impinger 1000 Series Service Manual Domestic PLACE DIGITAL VOLTMETER LEADS terminal 51 52 adjust the for 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 inpu
32. 4 28911 9929 2 L 286904 4 M 838920 12 9 9903 S 36060 369037 U 96034 V 3605 JX W 3942 X 3609 36098 Z 288903 3609 9386900 84 Impinger 1000 Series Service Manual Domestic BLOW UP SERIES 1000 5 2163 And Below S 2164 And Above Impinger 1000 Series Service Manual Domestic 85 SERIES 1200 CONTROL LETTER P N DESCRIPTION 2 2 2 4 250 Motor Control S N 04613 014973 369201 4 250 369154 0 7 Amp Circuit Breaker 369605 Transformer Stepper 357028 Fuse Non Delay 1 250V 86 Impinger 1000 Series Service Manual Domestic BLOW UP SERIES 1200 CONVEYOR CONTROL Impinger 1000 Series Service Manual Domestic 87 PARTS SERIES 1200 CONVEYOR LETTER P N DESCRIPTION 369277 369275 369276 369274 369278 369241 369242 369005 369280 369284 369279 Retaining Block Outer 369039 Blank Drive Gear 369038 369281 369160 350238 369697 369282 369206 369273 Complete 369249 Drive Chain Long Not Shown Not Shown Not Shown Not Shown 369250 Drive Chain Short 369817 Drive Chain Long Stepper Drive 369818 Drive Chain Short Stepper Drive 29097 JV B
33. 6 volt Transformer The secondary output of the Below 1200 series transformer normally 13 to 14 VAC depending on input with a center tap is S N Q14973 amp Below supplied to terminals 1 2 and 3 of the Time Temp Display The center tap is 1000 series terminal 2 The display works on a balanced input and center tap voltage to each leg must be 1 2 the total reading S N Q14791 amp Above The speed side of the Time Temp Display uses a slotted disc cemented to tach 1200 series refer to Pg coupling to break the infrared light beam of the optical switch mounted on gear 5 amp 6 S N Q14974 amp motor producing electrical pulses that are transmitted to the display The display Above 1000 series refer converts these pulses into a read out of minutes and seconds The temperature to Pg 5 amp 6 STEPPER portion of the display uses a Thermistor Probe to sense oven temperature thermistor outputs a resistance proportional to the oven temperature This resistance is then converted by the display into a temperature reading The 1200 Series Ovens use a Double Pole Double Throw Switch to connect the two Optical Encoder Assemblies to the Time Temp Display By activating the switch either the front or rear belt speed can be shown by the Time Temp Display CONVEYOR DRIVE Closing the Oven Fan Switch supplies 120 VAC through the Power Transformer to the normally open Conveyor Switch Closing the Conveyor Switch supplies 120 VAC th
34. 9092775 C 369276 D 369274 4o E 3929 9809278 GG 36924 1 369242 HO 29905 98369280 369280 3609 36909 M 369281 1 369160 350238 P 369697 Q 369282 99206 JJ S 98909273 NotShown 36929 ____ NotShown 369250 NotShown 369817 2 NotShown 369818 88 Impinger 1000 Series Service Manual Domestic BLOW SERIES 1200 ANE VA 10 WAQ N Impinger 1000 Series Service Manual Domestic 90 This intentionally blank Impinger 1000 Series Service Manual Domestic This intentionally blank Impinger 1000 Series Service Manual Domestic 91 92 dV M En CERTIFIED SERVICE AND PARTS Impinger 1000 Series Service Manual Domestic
35. AC Transformer the Burner and Conveyor Switches Impinger 1000 Series Service Manual Domestic 5 TRANSFORMER 12 6 Upon closure of the Fan Switch 120 is supplied to the primary of the 12 6 Transformer The Transformer steps the voltage down to 12 6 normally 13 to 14 with center tap and supplies power to the Time Temp Display The voltage from each leg of the Transformer s secondary to the center tap should be one half of the secondary voltage BURNER CIRCUIT Closing the Fan Switch and the normally open Burner Switch 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 primary of the 24 VAC Transformer The transformer s secondary supplies 24 VAC to the burner motor 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 is energized As this motor reaches approx 1 600 R P M its internal centrifugal switch closes supplying 24 to the Gas Control Valve When the Gas Control Valve is supplied with 24 VAC the pilot valve is energized and the igniter circuit is energized Ignition should now occur After pilot flame is proven the Main Gas Valve is energized The Burner Indicator Light is also energized TEMPERATURE Closing the Fan Switch and Bur
36. Hot White conductor is Dedicated Neutral Green conductor Ground MAIN FAN CIRCUIT Electrical power is permanently supplied through 6 50A fuses to the normally open contacts of the Mercury Contactors Power is also supplied through 2 15A fuses to the normally open contacts of the Double Pole Main Fan Relay the Double Pole Main Fan Switch and the normally open Cool Down Thermostat thermostat closes 160 F and opens at 140 F Closing the Main Fan Switch energizes the coil of the Main Fan Relay The normally open contacts now close energizing the Main Fan Motor and the Control Box Cooling Fan Closing the Fan Switch also supplies power to the Hour Meter hour meter discontinued after S N 3484 the 12 6 VAC Transformer the Heat and Conveyor Switches TRANSFORMER 12 6 Upon closure of the Fan Switch 120 VAC is supplied to the primary of the 12 6 VAC VAC Transformer The Transformer steps the voltage down to 12 6 VAC normally 13 to 14 VAC with a center tap and supplies power to the Time Temp Display The voltage from each leg of the Transformer s secondary to the center tap should be one half of the secondary voltage HEAT CIRCUIT Closing the Fan Switch and the normally open Heat Switch supplies 120 VAC through the Air Pressure Switch and the normally closed Hi Limit Thermostat manually re settable opens at 190 F the Fuse to the L1 terminal of the Temperature Control Board the coils of the Mercury Contactors and to the Heat
37. LNOD 1V1SONH3HL 118 H3NH H HOLIMS HOLVOIGNI dV 1 JOULNOO 135 HOUMS vs HOSN3S INY 3 HOLIMS 3UNSSAUd SdY N 23 X2V18 Cu Ud SS td 39 038 3 N r T pen 21 ty NOVI OL dd EN LT 99 E S Ls JE v 213 S SdV 65 29 Impinger 1000 Series Service Manual Domestic 18 3AO8V 622710 5 123135 3 11 33v8 HOlIMS 55 42 8 H0SN3S 123443 TWH pue ST13GON 7790519132 835078 YINYNG HOLIMS PS MOLINSI 38YdS HOSN3S 34v13 15 54 LLI HOLIMS S VE 3614 NJAO 40 14083 C3M3IA HOLIMS 25 VE MOAJANOO 3514 Ed gt GUJ WNN 59 NYJ NJAO HOLIMS 15 VOL 35043 24713 C32Y8 LNOH3 10H1N02 HOA3ANO2 HIWHOISNYVUL ENX HOLOW AY3u 14 72041409 3ufivd3dWil 210019313 313 1041 02 YINYNE VINHOJSNYUL ZYX 1331 9417002 HOLOM SW WOVE 788356 104 12 23VA9 21 1 1 U3WHOjSNYMI LUX 3 018 80108 3 AT NISSY 104 NIVW EA CHOVG 18083 80104 EW 0019 1043 1041409
38. N3AO MOVE 1VOLLdO 1 TYOLLdO YINYNE HOLOM HO1ON NJAO HOLON HOLYOIGNI dT 3052 3NY13 VE 3914 4 dIN3 U3WU 3613 VO YOLOR 3513 8 18 355 104 Va A18N38SY 104 HOAJANOO 1031409 1041409 54 YOLIDVdVI LYLSONHSHL X08 1041NO2 LYLSOMUSMHL 196 00 HOLMS Impinger 1000 Series Service Manual Domestic 14 1202 1203 S N 014790 amp BELOW 6021 2001 S 1HQON IVA 971 LL H3WSO3SNVHI 9510 dWILINL A18N3SSV LOd 3H Yd3dif31 HOLSMUIHL U313WOHOVl UILINOHIVL AVTdSIG IRU 4OYS LNOH3 HOLIAS 135 3WIL HOLIMS HOLIAS HOLIAS gt NJAO HOLIMS 40100 NY4 N3AO AY13U bux WOVE u3002N3 1Y2UdO UIGOONI TYDLLdO YOAZANOD HOLON HOA3ANOO HOLON HO1ON N3AQ HO1ON HDIM LYLSONUIHL YOLVDIANI LY3H SNLLY3H Vos U31Y3H 3503 VE 10H1NOO IUNLVYIdNAL 3503 VE HOA3ANOO 35 4 WE
39. NL 3513 VOL NV4 3574 471903557 104 HOA3ANOO 7OULNOO FL HOLIOVdYO NJAO LVLSONUIHL 10H1NOO LVLSONHIHL JOULNOO HOLMS 300155394 HIV 94 4 vd 2444 82 218 SdY 4 Impinger 1000 Series Service Manual Domestic 1022 1023 S N 019077 amp BELOW 6201 2201 S13GON 19 VA 9 21 L L H3WHOJSNVH1 AV1dSI0 dWILINL A18W3SSY 104 3H r vH3dW31 HOLSINHIHL H313WOHOV1 HOLIMS 13S HOLIMS 1V3H HOLIAS HOLIMS NJAO HOLIMS HOLOM N3AO AVTIH TVOLLdO HOA3ANOO 1 NY4 HOLOM NY4 N3AO HOLON LINN LVLSONWH3H1 HOLVOIGNI dAVT 1431373 vos u31v3H 3573 VE dN31 3504 Y 4OA3ANOO 35013 dNILAINL 35703 in 21 4 93 3 bd Cd 3503 JOHLNOD 21 0 12313 HOLOVINOO HOLOYANOO HOLOY1NOO 471803857 LOd HOA3ANOO JOULNOD HOA3ANOO 52 HOLIOYdYO
40. OLON HOLON NJAO HOLOM HOLVDIONI HINHNG HOSN3S INV TS VE HOA3ANOO 3614 UINHOJSNVUL 3573 VOL 3513 ATENAISSV 104 03M 4 HOLDYdYO NJAO LVLSONHIHL ON 1009 10H1NOO 1V1SONH3H1 JOHLNOO HOLMS 3UNSSIUd HIV 54 4 td bd 85 9 98 Impinger 1000 Series Service Manual Domestic 1004 1005 5001 7001 514 OVA PZ TOHLNOO YINHOISNVUL 19 OVA 921 L L H3AHOJSNYUL NIYIN JAIA 3ATVA AY ldSId HOLSINUIHL H313WOHOV1 HOLIMS 7197913141435 HINUNG HOLIMS 135 JWL HOLIMS HINHNG HOLIMS 3 zs Ld HOLIMS NJAO HOLIMS XH YdS HOLOM N3AO T1VOLLdO HINYNE HOLOM HOA3ANOO HOLON NY4 HOLON 4OLOM HOLYOIGNI MOSN3S 3i V4 xovg n E 25 tS by 30 EN IN Sd VI 3504 VE YOAZANOO 35014 H3HOJSNYU L dNILA
41. OVE Rs 67 PARFEO 1222 GA 68 ON PN NN 69 PARESE 1 70 BLOW PT Tee 71 PARIS 1200 1201 1204 AND 1 208 saa eee 72 BELOW UPF 1200 1201 1204 71205 73 PARIS TOT _________ __ ___________ _ 74 BEON UP 1202 T20 75 PARIS AT 76 BROW UP 1240 1241 uu aa ______ _______________ 77 PARTS OVEN BAGR SGA 78 BLOW UP FOVEN BAG 79 PARTS OVEN BACK EEG RIG u L lk 80 BLOW UP OVEN BAGK ELECTRIC R uu ____ _ 81 PARTS CONVEYOR MOTOR ASSEMBLY S N 4390 amp 0 0 82 BLOW UP CONVEYOR MOTOR ASSEMBLY S N 4390 amp 000 93 PARTS SERIES 1000 TONVETR Sy u Qaqa ag ORT Nd 84 BLOW UP SERIES 1000 SONER 85 PARTS SERIES 1200 gt CONVEYOR CON ROL avse 86 BLOW UP SERIES 1200 CONVEYOR CONTROL ayes Sed 87 PARTS TSR ES 1200 SONEN RD 88 BLOW UR SERIES 1200 CONVEY Rav 89 2 Impinger 1000 Series Service Manual Domestic SEQUENCE OF OPERATIONS 1000 1001 1004 1005 1200 1201 1204 1205 MODEL 1000 120 230 60HZ NATURAL GAS MODEL 1001 120 230
42. OdSNYHL JYAPZ 1041802 M3NHhB YIKYOISNVUL ZHX 19 L L LHX NIVA JAWA EA 107114 NOTLYINO3Y 3unlvH3dW3i 3ATVA AVSTO 4 1 3 11 L f e 1 MOT38 ONY 9267 838WNN 5 7191413132 334079 HOLLAS 21196 HOLLAS HOLEAS MOLOM NJAO 83M018 YINHNE 80108 80108 3 9411002 HOLOW NYJ HOLOW HOLVIIONI 838808 Atte 305436 123333 11 SH HOLINDL 05 14 19 64 VE HOA3ANO3 35 4 VOL 3513 24 14 1081402 3MNLVYHIdMIL 9140315313 55 104 YOAZANOD 7081 03 YOASANOD OM 5 2 80112 4 2 9811002 7081802 IVISOWHIHL 7031402 Y3NUNG HOLIMS 38055382 YIV 213 ur 18 s 13 Impinger 1000 Series Service Manual Domestic 1200 1201 081 0081 S13GON OVA r 1 1 UINUNG YINHOISNVUL 971 L L YINHOISNYVUL NIV 3A1VA 1014 FATWA AY1dSIG 4 HOLSINHIKL HILINOHIVL AVTdSIG 3NLL XOVE HOLAS TYONdIULNII 434018 UINUNE HILIMS 13S JAU HOLIMS HOLIAS HOLIAS NY4 N3AO HOLIAS HOLINDI NUVdS HOLON NY
43. P Check gas filter by removing cover plate located on either side of valve Remove four 4 screws and slide filter out of valve housing and inspect Reassemble in reverse order and check for leaks around cover SIDE VIEW TOP VIEW OUTPUT MANIFOLD PRESSURE F ONTROCCER ADJUSTMENT ADJUSTMENT ELECTRICAL CONNECTOR FILTER FILTER COVER gt COVER PLATE PLATE ELECTRICAL CONNECTOR Impinger 1000 Series Service Manual Domestic 55 DANSON OO ee pom 56 IGNITION CONTROL REPLACEMENT Remove control panel top and front cover Loosen two 2 locking screws on front cover of relay approx 1 2 turn front portion of relay by pulling straight out rocking motion Remove wires from plug in terminal strip note wire numbers and locations Hemove two 2 screws from mounting bracket and remove in reverse order NOTE Plug in terminal strip is polarized and will only allow relay to plug in one direction make sure manual reset button lines up with access hole in front cover Check system operation HIGH LIMIT THERMOSTAT REPLACEMENT Remove control panel top and front cover Remove conveyor and fingers Remove capillary bulb from wire form in oven chamber and pull through tube into control box Remove two 2 wires from thermostat note wire numbers and location for reinstallation Remove screws from bracket and remove thermostat
44. SERVICE MANUAL DOMESTIC IMPINGER CONVEYOR OVENS MODEL SERIES 1000 1200 amp 1400 USB 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 gt c SIAR CERTIFIED SERVICE AND PARTS 1000SeriesSvc REV 1 5 07 TABLE CONTENTS ae 2 SEQUENCE OF OPERATIONS 1000 1001 1004 1005 1200 1201 1204 1205 3 SEQUENCE OPERATIONS 10227 10297 1202 1209 u w Qa a a 4 SEQUENCE OF OPERATIONS 10412 2407 5 SCHEMATIC 1000 TOOT 52 y u 8 SOBEMATIO 71004 FODS Lasse 9 SCHEMATIC 1022 1023 S N 019077 amp BELOW 1 cece cece eee 10 SCHEMATIC 1022 1023 S N 019078 amp ABOVE 1 a eee a REELLE EG 11 SCHEMATIC 1040 1041 S N 014279 amp 12 SCHEMATIC 1040 1041 S N 214280 4 ABOVE J a nn 13 SCHEMA TIG 1200 1201 see 14 SGHEMATIC 1202 1208 SIN Q14790 amp BELOW cacy ex ER
45. SOMMIHL 35NY Lid VOS 4ILVIH 3604 013 3048 3603 1043 3604 VSL HOLON 3583 23 1081 02 3HniYH3dW31 21 0912313 3378 ATGWISSY 104 14033 AT WISSY 104 2 8 1 08 4 71031403 YOAZANOD 038 574 HOLIIVdVI 9417003 NJAO 1 150 83 1 HOLIMS 38065384 19 Eb lt x zo d Impinger 1000 Series Service Manual Domestic 16 1204 1205 902 1 021 6 OVA VE 1044409 d3NHn8 B3WHO3SNVH1 OVA 921 L L H3NHO3SNYHI NIVW 414510 MOLSINH3HL HILINOHOVL AV1dSI0 3WLL MOVE LNOH3 HOLIMS 13S JAU HO LIAS HOUMS HOLMS N3AO H LIAS HOLINOI XH YdS u3NHna 3139 HOLOW N3AO AV13U MOVE ANOU4 1 2140 H3M018 H3NHn8 HOLON HOA3ANOO HOLOM NY4 HOLON HOLVDIONI dNY1 HOSNIS 3WY14 VI HINYNB 3513 ts 18 230 130 TN VE 8OA3ANOO 36034 U3WHOJSNYUL dW31 3NIL 3513 VOL HOLOW 3813 8 A18W3SSV LOd HOA3ANOO Y A18W3SSY 104 4H 10441405 Yu 10H LNOO HOA3ANOO YLO0 d33Y3H8 LINDUID 03M F HOLIOYdYO
46. T 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 Install new switch in reverse order make sure air tube is not blocked miss aligned Adjust as needed To adjust the air pressure switch remove snap on cover on the side of the switch to expose adjusting screw To increase sensitivity turn screw counter clockwise to decrease sensitivity turn screw clockwise Check for proper line voltage switching from N C to N O as the air pressure switch closes GAS VALVE REPLACEMENT AND ADJUSTMENTS Remove control panel top and front cover Disconnect the gas piping from the back of the unit the four 4 screws from the incoming nipple mounting bracket Remove incoming nipple Disconnect two 2 plugs 1 3 prong and 1 4 prong Note location Disconnect pipe union just above gas valve and remove assembly Reassemble in reverse order check all pipe fittings for leaks After assembled check for proper adjustment of gas pressure switch 8 8 on dial for natural gas 23 for L P Gas and 4 5 for town gas Check and adjust manifold pressure Remove pressure tap located in gas piping above the gas valve prior to the burner orifice and install manometer Adjustment screw is located on the front of the valve remove plastic cap and adjust as needed 3 5 W C for Natural Gas and 10 W C for L
47. VEYOR MOTOR ASSEMBLY S N 4390 amp ABOVE LETTER P N DESCRIPTION 5 D 369290 Optical Encoder Assy E 3690161 Coupling and Encoder Disc 050 in Allen Wrench included G 39594 O 369292 Bracket Tach Generator 1 1 3897 Screw 5 30986 f lokwaser OO oOo O 8993 398 Generator OO oO M 9998 _____ N 899 35H47 Screw 000867 395 fi locwaser 3969600 T Stepper Motor Gearbox Assy includes 6 T U pr 3973 Hart Effect 82 Impinger 1000 Series Service Manual Domestic BLOW CONVEYOR MOTOR ASSEMBLY S N 4390 amp ABOVE gt o ENCODER DISC COUPLING AND i MOTOR END TACH GENERATOR Impinger 1000 Series Service Manual Domestic 83 PARTS SERIES 1000 CONVEYOR LETTER P N DESCRIPTION 369002 369314 369835 369312 369160 369641 369220 369005 369237 369161 369219 369644 369206 369163 369362 369143 369036 Drive Bearing Assy 369066 Drive Sprocket S N Q14974 amp Above Gas N L A S N 019078 amp above Electric 369413 369380 369060 369037 369034 369035 369042 369039 369038 369043 369059 369040 3902 C 3685 E 9289810 996041 G 9920 29905
48. VEYOR MOTOR REPLACEMENT STEPPER 1000 SERIES SN14975 AND ABOVE 1200 SERIES SN14792 AND ABOVE Shut off power at main breaker Remove control panel top and front cover Remove the chain guard Remove the conveyor drive chain from the motor sprocket the sprocket from the conveyor motor shaft by loosening the set screw and sliding the sprocket off the shaft Unplug the wire harness for the motor Unplug the wire harness for the hall effect sensor mounted on motor from the conveyor speed control the four 4 mounting bolts and washers Reassemble in reverse order and calibrate the control board See Stepper Control Adjustment NOTE New drive motors will come as an assembly with Magnet and Hall Effect Sensor The magnet and sensor will also be available as a replaceable spare part When replacing the magnet be sure to clean shaft and locate new magnet up against the shoulder on the shaft COUPLING AND ENCODER DISC Shut off power at main breaker Remove conveyor motor assembly Remove dust cover above motor Loosen both allen set screws 050 inch allen wrench located on coupling hub screws from tach bracket loosen the 4th Remove encoder assembly see optical encoder assembly in following procedure Pushing coupling down on motor shaft Swivel tach bracket aside and remove coupling To install push coupling on to motor shaft The encoder disc must be nearest motor Refasten tach b
49. aft Remove drive shaft from end of conveyor frame Remove bearing retaining clips from ends of drive shaft Slide bearing off drive shaft Reassemble in reverse order IDLER END idler shaft from end of conveyor frame Slide bearing off idler shaft Reassemble in reverse order Impinger 1000 Series Service Manual Domestic 49 Io oo OT oo Docs 50 BEARING 2164 Remove from oven and place 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 Remove drive shaft and bearing assembly from conveyor frame Reassemble in reverse order IDLER END idler shaft bearing mounting plate assembly from conveyor frame Hemove bearing mounting plate assembly from conveyor bearing from mounting plate Reassemble in reverse order TRANSFORMER STEPPER MOTOR CONTROL Shut off power at main breaker Remove control panel top and front cover Disconnect transformer wire harness Remove two 2 mounting screws Reassemble in reverse order HALL EFFECT SENSOR REPLACEMENT NOTE There are two 2 styles of hall effect sensors See Drawing OLD STYLE Remove two 2 screws from conveyor drive motor and break aw
50. ally check for contact pull in Fan Motor Check for opens shorts or grounds WITH POWER OFF Turn Fan Blade to check for locked rotor Capacitor No Main Fan Cool Cool Down Thermostat Check cool down thermostat thermostat closes at Down 160 F and opens at 140 F Check for power 120 at cool down thermostat With the cool down thermostat pre heated check for continuity If switch is open replace No Control Box Main Fan Relay Check for power to Main Fan Relay Visually check Cooling For ovens for contact pull in equipped with Control Box Cooling Fan Export Ovens For ovens equipped with a control circuit step Axial Cooling Fan down transformer the supply voltage for the cooling fan is 240 VAC WITH POWER OFF check for locked rotor Check for power 120 VAG to cooling fan If 120 is present at the fan motor and the fan does not run replace fan assembly No automatic control Incoming Power Supply Check breakers Reset if needed Check for box cooling For ovens incoming power 120 VAC at cooling fan equipped with control thermostat box cooling fan Cooling Fan Thermostat Check cooling fan thermostat thermostat closes at 1209 and opens at 100 F With cooling fan thermostat pre heated check for continuity If switch is open replace fan does not run replace fan continues to run Oven will not heat Gas Supply Check for adequate gas supply to oven Manual Gas Shut off Valve Check to see that m
51. ally open Conveyor Switch supplies 120 VAC through a 3A Fuse to the Motor Control Board AC volts are converted to D C volts and are supplied to the Conveyor motor at board terminals A1 and A2 through a D P D T Reversing Switch Adjustment of the Speed Control Potentiometer 500 ohm 10 turn will change resistance at terminals S1 S2 and S3 varying the D C voltage to the motor The speed of the Conveyor Motor will increase or decrease as the D C voltage from the Motor Control Board increases or decreases respectively Closing the fan switch and the normally open conveyor 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 and A Adjustment of the Speed Control Potentiometer 5 000 ohm 10 turn will change resistance at terminals P1 P2 and 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 As the motor turns it drives both the reducer gearbox and the tach generator The tach generator is DC voltage generator which supplies voltage to the DC motor control board and is used as a reference for maintaining a constant conveyor speed TIME TEMP DISPLAY The Time Temp Display is energized when the Fan Switch is closed supplying120 VAC to the primary of the 12 6 volt Transformer The secondary output of the transformer normally 13 to
52. anual shut off valve is open Fan Switch Check to see that fan switch is on Check if main oven fan is operating If not refer to Oven fan will not run Page 20 Burner Switch Check for 120 VAC to neutral on both sides of switch If switch is closed and 120 VAC is present on one side only replace the switch 20 Impinger 1000 Series Service Manual Domestic Air Pressure Switch Check for 120 VAC on both sides of switch If voltage present on one side only check for air tube blockage Adjust air switch If above fails replace air pressure switch Transformer 24 VAG Check for 120 VAC to primary of transformer Check for 24 VAC from secondary of transformer If there is primary voltage but no secondary voltage replace transformer NOTE Model 1004 amp 1005 For oven models 1004 and 1005 there is a 1 Amp fuse located between the 24 VAC output from the transformer and the coil of the burner motor relay If there is 24 VAC output from the transformer but no burner motor relay action check fuse fuse holder Replace as necessary Burner Motor Relay Delete burner motor relay refer to Section D Page 34 Burner Blower Motor Check for 120 VAC supply to burner blower motor If 120 VAC is present and motor does not run replace motor WITH POWER OFF turn blower wheel to check for locked rotor Centrifugal Switch of Burner Check for 24 VAC output from secondary of Blower Motor transformer If voltage is present
53. ay hall effect sensor from motor shaft To install new sensor cut sensor bracket through center hole and install sensor half with one 1 screw Reinstall plug on conveyor control NEW STYLE two 2 mounting screws and remove sensor from conveyor motor Reinstall in reverse order CUT HERE DISCARD NEW STYLE OLD STYLE Impinger 1000 Series Service Manual Domestic poe AR oo 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 Slide thermistor probe out of oven chamber NOTE Remove conveyor and bottom fingers to aid in removal and instaliaticn of thermistor probe Disconnect wires from back of digital display at terminal strip location 29 10 in reverse order making sure the probe is placed securely in the wire form in the oven chamber Reconnect to digital display and calibrate See Time Temperature Display Replacement and Calibration To test the thermistor probe refer to the following chart and instructions OVEN TEMPERATURE 300 F 350 F 500 F 550 F OHMS 182 Place test pyrometer thermocouple and preheat oven as specified under temperature calibration Disconne
54. be necessary to replace ignition cable terminal with 250 quick connect terminal supplied Connect the red wire from burner blower motor centrifugal switch to terminal marked 24V on ignition control Connect green 68 wire supplied from terminal 24 GND to terminal GND burner to ground Connect the green wire from 24VAC transformer to wire 68 at terminal marked 24V GND on ignition control The Honeywell ignition control module provides 10096 safety lockout Control will try for ignition for 15 seconds If ignition does not occur control will lockout or shut off To reset control the burner switch must be turned off for 1 minute Impinger 1000 Series Service Manual Domestic 39 40 24V GND 24V WHITE FROM PILOT LIGHT BUTT SPLICE AND NEW GREEN WIRE SUPPLIED IN KIT BLUE FROM VALVE TO PILOT LIGHT 3 RED FROM VALVE BLACK FROM VALVE 43 RED FROM VALVE TO PILOT LIGHT lt WHITE FROM PILOT LIGHT gt gt gt N 9 SPARK BUTT SPLICE AND NEW GREEN WIRE SUPPLIED IN KIT I gt 2 lt lt RING TERMINAL END a WIRE HARNESS SUPPLIED IN KIT 9 5 O gt iy gt lt LLI LL 42 f zi 95 24V FROM TRANSFORMER INSULATED MALE TAB CONNECTOR Impinger 1000 Series Service Manual Domestic DTS S A LIG ND pos OND o SI Ne rv FLAME SENSOR
55. ck for locked rotor Capacitor No Main Fan Cool Cool Down Thermostat Check cool down thermostat thermostat closes at Down 160 F and opens at 140 Check for power 120 at cool down thermostat With cool down thermostat pre heated check for continuity If switch is open replace No control box cooling Main Fan Relay Check for power to main fan relay Visually check for pull in Axial Cooling Fan WITH POWER OFF turn the fan blade to check for locked rotor Check for power 120 VAG to cooling fan If 120 is present at the fan motor and the fan does not run replace fan assembly Oven will not heat Check if main oven fan is operating If not refer to Oven fan will not run switch on Replace if defective Air Pressure Switch Check for 120 on both sides of switch If voltage present on one side only check for air tube blockage adjust air switch If above fails replace air pressure switch Hi Limit Thermostat 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 replace thermostat rated at 190 F Hi Limit Thermostat Terminals are normally closed If open reset and Model 1032 test oven for proper operation If thermostat will not hold for maximum oven temperature and oven is not exceeding temperature dial setting Replace the thermostat Check for
56. ct the thermistor probe from terminals 9 and 10 and measure the resistance across the 2 yellow leads Refer to the above chart to determine if probe is producing the proper resistance EXAMPLE The probe resistance at 500 F 260 C should be 24 ohms TRANSFORMER TIME TEMP DISPLAY Shut off power at main breaker Remove control panel top Remove relay box cover Disconnect two 2 wires at base of transformer and three 3 wires at terminals 1 2 and 3 on Time Temp Display Remove two 2 mounting screws Reassemble in reverse order TIME TEMPERATURE DISPLAY REPLACEMENT amp CALIBRATION Shut off power at main breaker Remove control panel top Disconnect wires from rear of display Make note of wire numbers and location for reinstallation Remove four 4 screws from display bezel 2 top 2 bottom and remove display Install new display in reverse order Note dip switch position and calibrate display as follows a Check all wire connections to insure proper tightness b Check dip switch setting to insure proper positions for the model of oven Impinger 1000 Series Service Manual Domestic 51 ALL 1000 amp 1200 SERIES OVENS 52 SWITCH SETTINGS 1 TYPE I OFF TYPE II OFF TYPE Baldor Motor TYPE Ill OFF Stepper Motor TYPE IV OFF Baldor Motor TYPE IV OFF Stepper Motor 2 OFF OFF OFF OFF OFF OFF 3 ON OFF OFF OFF Kk Kk 4
57. econdary readings replace the transformer If 120 VAC primary voltage is not available refer to the schematic and trace circuit for incoming power failure There is a 4 amp fuse in each red secondary lead These may be jumpered for test only to determine if they are defective or intermittent Dual belt ovens utilize a double pole double throw switch which allows either of the optical encoders to be read from a single Time Temp Display Check switch and replace as needed 29 Temp Display out NOTE Time Temp displays Place your pyrometer thermocouple into the center use two types of temperature between fingers 2 the oven Disconnect sensor Thermistor 2 the yellow tipped thermistor leads from the yellow wires Thermocouple time temp terminals 9 and 10 Measure the Probe 1 red wire and 1 white resistance of the thermistor probe See chart in wire Section D for proper resistance readinos Thermistor Probe Inspect the thermistor bulb for its proper location in its spring holder Check for short in leads where they enter the sensor 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 thermocouple terminals 9 amp 10 on back of the time temp display Be sure to maintain proper polarity on thermocouple connections Compare actual oven
58. efer to the next section optical encoder Optical Encoder The above time temp test should have already been performed Remove dust cover from the gearmotor and inspect the coupling and encoder disc The coupling set screws should be tight not slipping on the motor shaft or the tach generator shaft The encoder disc should be firmly attached to the coupling and not warped Check the positioning of the optical encoder disc The disc should not be touching the optical encoder assembly and the encoder assembly should be mounted so it is squarely facing the coupling shatt This is to allow the infrared beams to be broken by the encoder disc If all this is okay then replace the optical encoder assembly 30 Impinger 1000 Series Service Manual Domestic Time Display inaccurate erratic or inoperative S N Conveyor Drive Stepper Q19078 amp Above1000 Control Series S N Q14791 amp Above1200 Series Hall Effect Sensor Conveyor Drive Stepper Control Impinger I 1000 Series Service Manual Domestic Perform all checks as in the above evaluation the time check is okay refer to the next section Check to see if the conveyor drive stepper motor is running motor is not running refer to Conveyor will not run on page 28 Check to insure that the magnet cemented to shaft of conveyor drive stepper motor has not been damaged or come loose from motor shaft Replace as needed Check fo
59. emble in reverse order TEMPERATURE CONTROL BOARD GAS OVENS Shut off power at main breaker Remove control panel top and front cover Remove relay box cover Disconnect wiring from temperature control board Make note of wire number and location for reinstallation Reassemble in reverse order ELECTRIC OVENS Shut off power at main breaker Remove control panel top and front cover Disconnect wiring from temperature control board Make note of wire numbers and location for reinstallation Reassemble in reverse order Impinger 1000 Series Service Manual Domestic 37 UU queo Doc pow e TEMPERATURE CONTROL POTENTIOMETER REPLACEMENT Remove control panel top and front cover 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 MERCURY CONTACTOR Shut off power at main breaker Remove control panel top and front cover Disconnect contactor wires and mark for reinstallation Remove screws from mounting bracket and replace contactor NOTE Be sure contactor is not mounted upside down as this will cause a constant on condition Reassemble in reverse order THERMOCOUPLE REPLACEMENT Remove control panel top and front cover cover from relay box Slide thermocouple out of oven chamber NOTE Rem
60. emoveleadsfrom4 5 6 7 8 9 and10 Installtime temp simulator to terminals 4 7 9 10 To identify display type MEASURE WIDTH OF COVER ON DISPLAY Type 115 51 8 inches wide Type Il is 5 5 8 inches wide amp II have 6 position dip switch module Type Ill has 10 position dip switch module Impinger 1000 Series Service Manual Domestic 53 Dip Switch 1 2 3 4 5 6 7 8 9 10 TYPE OFF OFF OFF ON OFF OFF TYPE OFF OFF OFF OFF OFF OFF III OFF OFF OFF OFF OFF OFF OFF ON OFF ON 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 9 20 10 sec HHH TYPE 9 35 10 sec 635 10 F Turn time and temp cal pot fully clockwise Display should read Wait 15 20 seconds TYPE 10 20 10 sec 615 10 F II 10 10 10 sec 475 10 TYPE Ill 10 20 10 sec 475 10 Turn time pot to 10 00 minutes and temp pot to 540 F Time reading 10 00 5 seconds Temperature reading should be steady at 540 10 F If these readings are not achieved replace display NOTE After simulator test is completed the oven Time Temperature Display must be re calibrated SWITCH REPLACEMENT FAN HEAT CONVEYOR Shut off power at main breaker Remove control panel top and front cover Remove switch access cover De
61. emperature Control Valve and carefully rotate to access main orifice bracket NOTE Be sure not to damage capillary tube Hemove main orifice from orifice bracket Reassemble in reverse order Check all gas fittings for leaks POTENTIOMETER CONVEYOR SPEED CONTROL Shut off power at main breaker Remove control panel top and front panel Hemove conveyor speed control dial Remove mounting nut from pot shaft pot from front panel Disconnect pot wiring from conveyor control board Remove pot assembly Reassemble in reverse order DIAL CONVEYOR SPEED CONTROL NON DIGITAL DISPLAY OVENS Shut off power at main breakers dial by loosening set screws Set new dial indicator to 000 in window and lock Turn speed control pot shaft to its minimum speed position Slide dial assembly onto pot shaft and tighten set screw DIAL CONVEYOR SPEED CONTROL OVEN WITH DIGITAL DISPLAY Shut off power at main breaker Remove old dial by loosening set screw Remove shaft locking nut Install new shaft locking nut NOTE This is a friction type locking nut do not try to trim this nut to fit Install new dial by sliding over pot shaft and tightening set screw CONVEYOR MOTOR REPLACEMENT BODINE SN 100 4389 Shut off power at main breaker Remove control panel top and front panel Remove the conveyor drive chain from the motor sprocket chain guard the sprocket from
62. en pilot 15 check for 24 across M V terminals if voltage is not present replace ignition control If voltage is present at terminals M V M V P V the indicator light on the control panel should be on verify that the main valve has opened connect manometer to manifold gas pressure tap located on the Red Indicator Light is Temperature Control Valve Check for gas supply at temperaturecontrol Check on but no main Robert Shaw for temperature control set above 300 F flame For ovens with Main Orifice Check for blockage of main orifice If there is no mechanical blockage to the main orifice replace the thermostat temperature control For ovens with Temperature Control Check for 120 VAC across L1 and L2on Electronic Potentiometer temperature control board Potentiometer 1000 Temperature Control 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 full turn of the dial NOTE Ovens S N Q18037 and above the potentiometer is internal to temperature control Proceed to next component Thermocouple Probe thermocouple leads from the temperature control board and measure the millivolt output of these leads Refer to chart on page 38 in the adjustment section for proper readings Temperature Control Turn temperature control dial to full on
63. ew Honeywell Ignition control the 24 VAC burner transformer rated at 20VA must be replaced with the larger rated at 40VA 369531 Transformer Head all instructions supplied in kit before starting Tools required Center punch and 7 32 drill bit Shut off power at main breaker Remove control panel top and front panel Remove front panel Remove ignition control package from Johnson gas valve and discard The white flame sensor wire from the burner to terminal 4 on Johnson gas control is no longer used Cut Wire at burner and discard NOTE On some Impinger ovens it may be necessary to drill the mounting holes through the oven specification plate Use care to avoid drilling through any important information or agency approval markings on the specification plate Use template supplied to locate and drill two 2 7 32 mounting holes for new Ignition Control When mounting new ignition control make certain that the green 67 ground wire supplied is installed properly Connect wiring as follows Connect blue wire from gas valve to terminal marked P V on ignition control Connect black wire from gas valve to termainal marked M V P V on ignition control Connect red wire from gas valve to terminal marked M V on ignition control Connect white wire from indicator light to ground by using splice connection on green wire supplied Connect orange spark lead from burner to terminal marked spark on ignition control NOTE It may
64. ff the ten 10 dip switches located on rear of Time Temp Display see drawing on page 52 should be set as below DISPLAY 1 2 3 4 D 6 7 8 9 10 SWITCH POSITION OFF ON OFF OFF ON ON OFF ON SWITCH 2 OFF FOR 60HZ ON FOR 50HZ SWITCH 3 OFF FOR F ON FOR G With running speed control Display indicates 5 00 minutes Place pan on the conveyor measure STOPWATCH the time SPEED OF PAN of the leading edge in to leading edge out of oven Turn the speed adjustment pot on the rear of the Time Temp Display so display agrees with time measured by the stop watch See drawing on page 52 4 Turn conveyor speed control fully counterclockwise and adjust the stepper control maximum speed pot refer to drawing above so the display indicates 50 seconds 5 Turn conveyor speed control fully clockwise and adjust the stepper control minimum speed pot so the display indicates 30 minutes NOTE Repeat 4 and 5 to be sure settings are accurate 6 Turn power off and set 1 dip switch to its ON OFF other position and verify that the conveyor reverses direction when power is applied Set conveyor travel direction as customer requests CAUTION ALWAYS REMOVE POWER BEFORE CHANGING CONVEYOR DIRECTION 48 Impinger 1000 Series Service Manual Domestic OUT Ie IDE NO Ot a Sl REVERSING CONVEYOR DIRECTION SN 100 4389 BODINE Shut off p
65. hrough 2 10A fuses and the Cooling Fan Closing the Fan Switch also supplies power to the Hour Meter hour meter discontinued after S N 3484 the 12 6 VAC Transformer the Burner and Conveyor Switches Upon closure of the Fan Switch 120 VAC is supplied to the primary of the 12 6 VAC Transformer The Transformer steps the voltage down to 12 6 VAC normally 13 to 14 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 Closing the Fan Switch and the normally open Burner Switch supplies 120 VAC through the Air Pressure Switch to the normally open contacts of the Burner Motor Relay and the primary of the 24 Step Down Transformer The Transformer secondary supplies 24 VAC through a 1A fuse on Model 1004 and 1005 to the Helay Coil the normally open contacts close within 30 seconds and the normally open Centrifugal Switch When the Relay contacts close the Burner Blower Motor is energized As this motor reaches approximately1600 its internal centrifugal switch closes supplying 24 VAC to the Gas Control Valve When the Gas Control Valve is supplied with 24 VAC the pilot valve is energized and the ignitor circuit is energized Ignition should now occur After pilot flame is proven the main gas valve is energized The Burner Indicator Light is also energized Closing the Fan Switch and the norm
66. iometer slowly from low to high the meter should show an even transition from 0 to 50K ohms 596 through the 10 turn rotation of the potentiometer There should be no dead or open spots through the 10 turns of the potentiometer Check all three leads to ground There should be no continuity to ground If any of the above checks fail replace the potentiometer NOTE if the conveyor drive motor becomes jammed or begins to run at an uncontrolled speed the conveyor motor will stop running To reset turn off the conveyor switch wait 10 seconds turn the conveyor switch on If the motor does not run after attempting re set check for 2 29 VAC across the motor terminals 1 to 2 and 3 to 5 on the conveyor motor control If voltage is not present at both sets of terminals replace control Check the drive sprocket on motor out put shaft to insure that it is tight Check motor windings measurements should be approximately 2 ohms Terminal 1 5 2 6 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 Measure the transformer primary inoperative for a nominal 120 VAC input Measure the secondary voltage output which will be 12 5 to 15 VAC normally Recheck secondary output at rear of Time Temp Display Terminals 1 to 3 should read 12 5 to 15 VAC Terminals 1 to 2 and 2 to 3 should be exactly 1 2 of the reading across 1 to 3 If you do not get the above s
67. le Type Ill has a 10 position dip switch module Type is 5 5 8 inches wide x 1 4 inches deep YELLOW YELLOW i TO THERMISTOR PROBE DIP SWITCH MODULE 9 10 TYPE I AND II HAVE ONLY 6 SWITCHES SWITCH POSITION ON OFF 1000 Series Service Manual TEMP TEMP CAL 10 Domestic IV has adjustment pots 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 Pot BOTTOM OF TIME DISPLAY DOD 000 DOD 2000000000 test leads here reading should be 26 5 ohms if not adjust pot range 0 34 ohms SWITCH DISPLAY SET Shut off power at main breaker Remove control panel top Disconnect wires from time temp display terminals 5 and 6 Pull off black operating knob and remove hex mounting nut Reassemble in reverse order Goo Dos PROCEDURE FOR USE OF TIME TEMP SIMULATOR NOTE DO NOT CHANGE HI TEMP POT TEST PROBES SHOULD READ 18 OHMS Check incoming power to display at Terminals 1 2 and 3 Approximately 13 VAC at 1 3 6 5 at 1 2 6 5 at 2 3 WithpowerOFF r
68. main and pilot orifice flame target pilot shield main and extension flame sensor and burner ignitor can now be changed or serviced as needed Reassemble in reverse order GAS CONTROL VALVE Shut off power at main breaker Shut off gas supply Remove control panel top and front cover Disconnect the 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 just above control valve Disconnect wiring from control valve making note of wire numbers and location Reassemble in reverse order after assembly is complete be sure to check manifold pressure 5 W C Gas 10 W C LP and adjust if necessary See Section MANIFOLD PRESSURE ADJUSTMENT NOTE Check all gas line fittings for leaks after installation MANIFOLD ADJUSTMENT _ SCREW LOCATED UNDER COVER SCREW MANIFOLD PRESSURE ADJUSTMENT CONNECTION PILOT LINE MANIFOLD ADJUSTMENT SCREW LOCATED UNDE COVER SCREW TOP VIEW Impinger 1000 Series Service Manual Domestic DL Co Cet Do 09 I ST SUED Doe 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 a
69. nd gas and start up oven With oven at full fire manifold pressure should be 3 5 W C NAT 10 W C LP Turn off electric power and gas replace cover screw remove manometer and adapter replace pressure tap plug Check pressure tap for gas leaks before closing panel Close control panel and check system operation TEMPERATURE CONTROL VALVE ROBERT SHAW Shut off power at main breaker Shut off gas supply Remove control panel top and front cover Remove gas control valve See Above Remove the two 2 3 8 x 16 nuts that hold main orifice bracket to the burner assembly temperature control valve sensing bulb from oven cavity NOTE It may be necessary to remove conveyor and fingers from oven cavity Remove piping from old temperature control valve Reassemble in reverse order be sure the sensing bulb is properly placed in the oven cavity The sensing bulb is properly placed in the oven cavity when it is placed in the spring holder and positioned with the 5 1 2 of the bulb to the left of the spring holder NOTE The bypass screw should be adjusted all the way in SOLENOID VALVE Shut off power at main breaker Shut off gas supply Remove control panel top and front cover Remove gas control valve See GAS CONTROL VALVE Disconnect wires from solenoid valve Remove two 2 3 8 x 16 hex nuts that hold main orifice bracket in place Remove solenoid valve assembly Remove piping from solenoid valve Reass
70. ner Switch supplies 120 VAC to the Temperature CONTROL Control Board The 1K or 1000 ohm Temperature Potentiometer 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 CONVEYOR DRIVE Closing the fan switch and the normally open conveyor Switch supplies 120 VAC to S N Q14790 amp Below the Motor Control Board AC volts are converted to DC volts and are supplied to the 1200 series Conveyor Motor at terminals and A Adjustment of the Speed Control S N Q14973 amp Below Potentiometer 5 000 ohm 10 turn will change resistance at terminals P1 P2 and 1000 series P3 varying the DC voltage to the Conveyor Motor The speed of the conveyor motor will increase or decrease as the DC voltage from the board increases or decreases S N Q14791 amp Above respectively As the motor turns it drives both the reducer gearbox and the tach 1200 series refer to Pg generator The tach Generator is a DC voltage generator which supplies a voltage 5 amp 6 S N Q14974 amp to the DC motor control board and is used as a reference for maintaining a constant Above 1000 series refer conveyor speed to Pg 5 amp 6 STEPPER TIME TEMP The Time Temp Display is energized when the Fan Switch is closed supplying 120 DISPLAY S N Q14790 amp VAC to the primary of the12
71. no high voltage input to the mercury contactor s check the 50 amp fuses and replace if 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 opens shorts and proper resistance To check resistance of the elements turn off the power Remove all leads from the elements and use an accurate digital VOM The element resistance should be as follows 208V 9 8 ohms approx 220V 10 5 ohms approx 240V 13 ohms approx If all readings are not correct replace elements as needed 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 output replace the mercury contactor Voltage Supply Check incoming voltage supply at line 1 to neutral There should be a voltage reading of 120 VAC If not present check breakers Replace if defective Fuse Holder Conveyor Switch D C Motor Control Board Check for 120 VAC input to D C control board across L1 and L2 Check the 3 amp fuse on the D C control board Check for D C voltage at terminal F1 and F2 Voltage should be 10 VDC Oven heats with switch Mercury Contactor s Conveyor will not run S N 100 4389 10 steady If this voltage is not present replace D C control board Check for D C voltage output to the motor acros
72. not O 360100 360254 SpedPot B 72 Impinger 1000 Series Service Manual Domestic BLOW UP 1200 1201 1204 1205 Impinger 1000 Series Service Manual Domestic 73 74 LETTER A C 5 T AA PARTS 1202 1203 P N DESCRIPTION Digital Display Air Switch Tube Speed Pot A S N 14974 amp Below Speed Pot B S N 14974 amp Above 369025 Blower Air Switch Impinger 1000 Series Service Manual Domestic BLOW UP 1202 1203 a A Z s GN x 201 Y 1000 Series Service Manual Domestic 75 PARTS 1240 1241 P N DESCRIPTION 369248 350225 H 369104 5 0 V W Gas Valve Body Only NAT LP 369072 Main Burner Orifice Natural Gas AA 369086 Pilot Line Assy S N 121 amp Above GO EE GG HH Speed Pot Stepper S N Q14791 amp Above UJ UJ MM NN FIX PFIN 76 Impinger 1000 Series Service Manual Domestic BLOW UP 1240 1241 Impinger 1000 Series Service Manual Domestic 77 PARTS OVEN BACK GAS P N DESCRIPTION Motor and Fan Cover Motor S N begins with a Q Motor 50 Hz 240V Capacitor 7 5 MFD 370 VAC Oven Back S N 4612 amp Below Oven Back Assy S N 4613 amp Above Rod Stand
73. ol box p n 369359 is no longer available The burner blower assembly p n 369265 has been changed to burner motor kit p n 369366 When It is used in the 3 ft Impinger Gas oven the following modification must be made Remove control box and components mounted on burner blower motor Mount transformer on air switch bracket as shown use transformer as template Remove three 3 screws that attach blower assembly to burner housing Mount new blower assembly Wire as shown See page 35 Discard control box and relay Transfer air shutter assembly from old blower assembly to new blower assembly MATERIAL NEEDED 29 drill bit and 8 x 3 8 self tapping screws 3 each AIR SWITCH MOUNTING BRACKET MOUNTING HOLES USE 29 DRILL 8 X 3 8 SELF TAPPING SCREW O N SEPARATE GROUND SCREW Impinger 1000 Series Service Manual Domestic OD Et TG Cnm CMT s CENTRIFUGAL MOTOR SWITCH WIRING DIAGRAM BURNER BLOWER ASSEMBLY WITH RELAY REMOVED 24 VAC TO IGNITION CONTROL TO GROUND TERMINAL ON IGNITION CONTROL TRANSFORMER P N 369531 WHEN USING OLD TRANSFORMER 120 VAC LEADS ARE BLACK WIRE TERMINALS ARE PROVIDED 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
74. oming voltage supply at line 1 to neutral There should be a voltage 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 checking on Page 20 Conveyor Switch oame procedure as for fan switch Dual belt ovens utilize 2 complete independent conveyor drive systems The trouble shooting procedures are the same as single belt ovens except that the dual belt ovens use one each of the following one A D C control board and one B D C control board This is a 0 to 5 K ohm 10 turn potentiometer With power off remove the red black and white pot leads from the motor control board at terminals P1 P2 and P3 With a digital multimeter check the ohm reading across the red lead P3 to the black lead P1 This reading should be 5 ohms 5 as the pot is rotated from low to high Place the meter leads on the red lead P3 and on the white lead P2 Rotating the pot slowly from low to high the meter reading should show an even transition from 5 ohms x 5 There should be Check for 120 VAC input to the control board at terminals L1 and L2 If not present check the conveyor switch and wiring back to 3 amp fuse and then back to power source if necessary If 120 VAC is present at L1 and L2 check the VDC output at terminals and A If a DC voltage is not present check the 4 amp
75. ove conveyor and bottom fingers to aid in removal and installation of thermocouple Remove two 2 wires from temperature control board 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 in the wire form in the oven chamber THERMOCOUPLE MEASUREMENT CHART EXPLANATION The junction temperature is the ambient air temperature where the thermocouple fastens to the electronic temperature control board V E N T E M P 200 F 250 300 477 630 4 83 636 488 6 4 494 6 47 5 00 653 729 8 06 9 60 10 37 11 14 12 69 1423 15 76 5 06 659 735 8 12 9 66 10 43 11 20 1274 1428 15 82 5 11 6 64 517 670 520 673 5 23 676 529 6 82 534 687 540 6 98 546 6 99 552 7 05 557 7 10 563 7 16 Impinger 1000 Series Service Manual Domestic DOS oon Org 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 Hemove two 2 mounting screws and remove heating element Reassemble in reverse order If the leads are not attached in this manner a loose connection may result causing arcing and lead wire burn off IGNITION CONTROL NOTE When replacing Johnson Controls G 60 or G 65 Ignition Control with the n
76. ower 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 To reverse conveyor direction use the following procedure Shut off power at main breaker Remove control panel top Remove cover from relay box Reverse wires fastened to terminals A and A Reverse wires fastened to terminals T1 and T2 Both set of leads must be reversed or oven will run at maximum speed with no speed adjustment possible STEPPER DRIVE SYSTEM SN 14975 AND ABOVE 1000 SERIES GAS OVEN SN 14792 AND ABOVE 1200 SERIES Shut off power at main breaker Remove control panel top Remove relay box cover Change position of dip switch 1 on stepper control board Reassemble in reverse order MINI 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 remove 5 Reassemble in reverse order NOTE Be sure to reset breaker before operating BEARING CONVEYOR SN 100 2163 Remove conveyor from oven and place of flat surface Remove connecting links from conveyor belting See Installation and Operting Instructions Manual Remove conveyor belting from conveyor DRIVE END Remove drive sprocket from drive sh
77. p1000 Series S N Fan Switch See procedure for checking on page 20 Q14791 amp Up1200 Conveyor Switch Check for 120 VAC to conveyor switch If no Series voltage is present trace wiring back to the fan switch WITH POWER OFF Check continuity between switch terminals Conveyor Fuse 3A Check replace if necessary Fuseholder Check replace if necessary 28 Impinger 1000 Series Service Manual Domestic Control Stepper Transformer Speed Adjustment Potentiometer Conveyor Motor Stepper Control Conveyor Drive Stepper Motor Time Temp Display 12 6 VAC Power Supply Dual Belt Ovens Impinger 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 If voltage is present check for output voltage from the transformer secondary NOTE this control transformer outputs 2 secondary voltages Red Leads 29 VAC Brown Leads 10 VAC If BOTH secondary voltages are not present replace the transformer This is a 0 to 50k ohm 10 turn potentiometer WITH POWER OFF remove the 3 pin potentiometer cable plug from the motor control board With a digital multimeter check the ohm reading across the red lead to the black lead this reading should be 50k ohms 5 as the potentiometer is rotated through its 10 turn rotation Place the meter leads on the red lead and white lead Rotating the potent
78. peed of the conveyor motor will increase or decrease as the voltage from the board increases or decreases respectively the motor turns it drives both the reducer gearbox and the tach generator The tach generator is a DC voltage generator which supplies voltage to the DC motor control board and is used as reference for maintaining constant conveyor speed TIME TEMP DISPLAY The Time Temp Display is energized when the Fan Switch is closed supplying 120 to the primary of the12 6 volt Transformer The secondary output of the transformer normally 13 to 14 depending on input with a center tap is supplied to terminals 1 2 and 3 of the Time Temp Display The center tap is terminal 2 The display works on 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 slotted disc cemented to tach coupling to break the infra red light beam of the optical switch mounted on gear motor producing electrical pulses that are transmitted to the display The display converts these pulses into read out of minutes and seconds The temperature portion of the display uses Thermistor Probe to sense oven temperature The thermistor outputs resistance proportional to the oven temperature This resistance is then converted by the display into temperature reading The 1200 Series Ovens use Double Pole Double Throw Switch to connect the two Optical
79. play 369029 Temperature Gauge S N Q5276 amp Down Uses 369009 T Couple 369342 Knob Temperature Control 369114 Brush Cap For 369022 369193 369340 369132 369173 369131 369032 369124 369535 369067 369063 369153 369391 369080 Reversing Switch S N 4389 amp Below 369025 Blower Air Switch Not Shown 68 Impinger 1000 Series Service Manual Domestic BLOW UP 1022 1023 m NI Impinger 1000 Series Service Manual Domestic 69 PARTS 1040 1041 LETTER P N DESCRIPTION 369012 ___ 0000 39 D 369248 Knob 0 36906 Sprocket S N 149748 Above F 369260 Switch ON OFF 369605 Transformer Stepper 350225 Red Lens 369104 Pilot Light 24 VAC SEE PAGE 82 Cooling Fan Thermostat Blower Air Switch 369507 369025 369032 369155 369640 35 028 369201 369240 3691730 369363 369131 369270 Conveyor Motor Control Board S N 4390 Q14973 Control Stepper S N Q14974 amp Above Fuse Non Delay 1 A 250V Fuse 4 Amp 250V Hi Hat Control Transformer Unit Relay Cover Top LH Thermocouple Probe Assy Electronic Temperature Control Q18037 amp Below See Burner Blower Motor Page 34 Transformer 120 24V 40VA 2 gt 369531 o MT 369366 Burner Blower Motor Kit 369331 Finger Guard Cooling Fan ThermstorProbe CC gt x lt Cl X 369193 Thermi
80. position Measure for 120 VAC across terminals N O and L2 if voltage is not present replace control Solenoid Valve If voltage is present at terminals N O and L2 check for voltage at solenoid valve If voltage is present listen for valve to open and close Also check for opens and shorts in coil If solenoid valve is defective replace Intermittent Heating Both the main fan motor and burner blower motor are equipped with thermo protection and will cease to operate when not cooled properly This can cause the units to cycle on and off intermittently Also most of the problems listed under oven will not heat can cause intermittent failures For continuing intermittent problems a series of test lights may be made and installed in the ovens The lights will allow the customer to advise the service technician a trouble code when the oven fails The lights should be connected in the following manner Light l attached in 120VAC line after Air Pressure Switch Light 2 attached after 120VAC contacts of Burner Motor Relay or refer to Bulletin 028 for Relay Removal Light 3 in 24VAC Burner Transformer Secondary Light 4 in 24VAC at terminal 6 of Johnson control valve or 24V on Honeywell Control Light 5 in 24VAC at terminal 1 of Johnson control valve or PV on Honeywell Control Light 6 in 24 at terminal 3 of Johnson control valve or MV on Honeywell Control CODE All lights off lights of main power main
81. press the spring clips on the sides of the switch and push out Remove wires from back of switch Note wire number and location Install new switch in reverse order and check SWITCH REPLACEMENT FAN SWITCH UPDATE INSTALLATION OF DOUBLE POLE FAN SWITCH 369260 IN PLACE OF SINGLE POLE FAN SWITCH 350705 NOTE This change is not necessary for proper operation of oven nor is it permissible to change under warranty Should be changed only at customer s request and their agreement to pay your bill ADVANTAGE Allows time temp display in older models to operate same as current production models Also allows locked time temp display caused by voltage surge interruption or spike to be reset by fan switch rather than circuit breaker IDENTIFICATION To determine which fan switch you have observe if temperature displays stays on during cooling down If it stays you have the single pole switch If it goes out as soon as fan switch is turned off you have the double pole switch REPLACEMENT Replace single pole switch 350705 Install double pole switch 369260 Disconnect lead indicated by in proper diagram and reroute as shown Install jumper lead indicated by in proper diagram Reapply all other leads as removed Impinger 1000 Series Service Manual Domestic S DI Ore CI rs THE FOLLOWING ITEMS ARE USED IN THE MODEL 1030 1046 1047 IMPINGER OVEN EXPORT AIR PRESSURE SWITCHES REPLACEMENT AND ADJUSTMEN
82. r any physical damage to Hall Effect sensor mounted on conveyor drive stepper 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 If there is still no time display wire in temporarily new conveyor drive control If there is still no time display reconnect original conveyor drive control Replace Hall Effect Sensor 31 puo Oo ROD 32 REMOVAL INSTALLATION amp ADJUSTMENTS MODEL SERIES 1000 amp 1200 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 flue by taking out the two 2 mounting screws louvered motor cover from back of oven Remove wireway by taking out the ten 10 hex head screws NOTE On Series 1200 ovens there are two 2 wireways to be removed and there is extra wire coiled in the control box to allow the wires to hang below the oven back for removal Remove cooling fan if equipped Remove junction box cover below motor and disconnect motor leads Make note of wire numbers and location for reinstallation Remove the twelve 12 hex head bolts from the oven back and slide back straight out of the oven Remove two 2 hex head bolts from fan hub and remove fan from motor shaft NOTE Measure distance from fan blade to rear
83. racket in proper alignment Tighten the set screw on the tach side first maintaining the 010 minimum dimension between the coupling hub and tach Pull the coupling apart approximately 1 8 3 2mm and fasten the motor side set screw If the optical encoder was loosened refer to optical encoder in this section for adjustment NOTE The thin slotted encoder disc must be handled with care so not to bend it Recheck tightness on the set screws to be sure they are tight If available LOC TITE the removable kind should be used to secure set screws Impinger 1000 Series Service Manual Domestic 43 DR PO aw Tues 44 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 Remove 2 screws from optical encoder and remove encoder Reassemble in reverse order To adjust optical encoder Position the encoder assembly so it does not rub the coupler hub and is square with the encoder disc The infrared light beam will be broken by slots in the encoder disc The encoder disc should not touch the bottom or top of the optical encoder If it does readjust the coupling The digital speed readout may be observed to check
84. res 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 Remove switch access 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 IGNITER SENSOR ASSEMBLY REPLACEMENT Remove control panel top and front cover Remove gas valve assembly See Gas Valve Remove screws from burner tube and pull burner assembly out Remove wire connectors from igniter sensor assembly Remove screws from mounting bracket and remove assembly Reassemble in reverse order and check system operation NOTE After installation check all pipe fittings for leaks BURNER BLOWER MOTOR REPLACEMENT Remove control panel top and front cover Remove screws around blower tube Disconnect motor wiring and remove Reassemble in reverse order and check system operation TEMPERATURE CONTROL BOARD REPLACEMENT MODEL 1030 Remove control panel top and front cover Remove potentiometer leads 3 note color and location Remove thermocouple leads 2 note color and location white pos red neg Remove power and solenoid leads 4 note wire number and location Hemove screw and board assembly and replace Reassemble in reverse order and check system operation NOTE
85. rough a 3 AMP Fuse to the primary of the Conveyor Control Transformer The secondary of this Transformer supplies 10 VAC and 29 VAC to the Conveyor Control The conveyor control supplies voltage pulses to the Conveyor Control The Conveyor Control Potentiometer varies the frequency of these pulses The motor speed will increase or decrease as the frequency of the pulses increase or decrease respectively 6 Impinger 1000 Series Service Manual Domestic TIME 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 Display The display works on a balanced input and the center tap voltage to each leg must be 1 2 the total reading Impinger 1000 Series Service Manual Domestic 7 1000 1001 1001 0001 51340 OVA PZ 1OH1NOO UINUNG J3NHOJSNYHL 19 OVA 971 L L U3HHOJSNYUL 107118 3AT1YA AVIdSIG dW3L 3NLL HOLSINHIHL 8313NOHOY1 SNISH3A3H HOLIMS H3AO18 UINUNE HOLIMS 13S JNU HOLIAS HINUNE HOLIMS ZHX TA LA LL 2226 HOLIAS NY4 NJAO HOLIMS YOLINDI XHVdS AVTIU HOLOM N3AO AYTAY 1 H3NH 8 HOLOW H
86. rvice Manual Domestic 59 60 LETTER PARTS MODEL SERIES 1000 amp 1200 GENERAL PART NO DESCRIPTION 369003 369207 369337 369110 369209 369828 369157 1534 369057 369643 1009 369062 369046 369367 369141 Conveyor Hold Down Bracket 369058 Baffle Inlet and Outlet 369211 Thumb Screw 369139 Shoulder Screw 369203 Stud Wing Head 369140 Compression Spring 369903 Flat Washer 5 16 iner 369204 369373 369205 369651 369379 369052 369030 369328 369904 369218 369053 369055 369748 369690 370048 369673 369244 369887 135 369199 369246 Display 369369 Seam Cover Opening 369749 Chain Cover Assy S N Q14974 amp Above Impinger 1000 Series Service Manual Domestic BLOW UP 1000 1200 GENERAL Impinger 1000 Series Service Manual Domestic 61 ACCESS DOOR amp 1050 DOOR LETTER PART NO DESCRIPTION 369110 Complete Access Window Assy 369310 Screw6 32x316 B 3977 Screw8 32x38 C 369308 7 Bottom Access Window Assy D 3690111 Glass Old Style 4 9 32 X 20 369334 Glass New Style 4 x 20 E 35068 Hade 7 ___ 369311 Handle Spacer 2 required 0 369309 Access Window Assy 02 ___ 369336 Doorlath 1 36996 Screw 8 32 5 8 369230 Screw 8 32 34
87. s terminals A1 and A2 this voltage should be approx 125 VDC at maximum conveyor motor speed 26 Impinger 1000 Series Service Manual Domestic Speed Control Potentiometer Reversing Switch Conveyor Drive Motor Voltage Supply Conveyor will not run S N 4390 to Q190771000 Series S N 4390 Q147901200 Series NOTE Dual Belt Ovens Speed Adjustment Potentiometer DC Motor Control Board Impinger 1000 Series Service Manual Domestic This is a 0 to 400 ohm or 0 to 500 ohm 10 turn potentiometer WITH POWER OFF remove the red white and black leads from terminals S1 52 S3 With a digital multimeter check the ohm reading across the red to black leads This ohm reading should be a steady 400 ohm or 500 ohm through the entire 10 turn rotation of the potentiometer Check for shorts or opens or unsteady ohm reading if potentiometer is defective replace If the potentiometer checks OK and there is no output at terminals A1 and A2 replace the D C control board If there is D C voltage output from the motor control board but the conveyor drive motor is not running check the D P D T reversing switch Check the conveyor drive sprocket for tightness Disconnect the motor check the red and black motor leads for opens shorts or grounds Check the brushes for excessive or abnormal wear Replace as needed Reconnect motor Test for operation If motor does not run replace Check inc
88. stor Probe j 369167 Set Switch Assy 7 370046 Button Only Z 369172 Digital Displa 360172 369316 Knob Temperature Adjustment Gas Valve Body Only NAT LP Ignition Control NAT amp LP Pilot Shut Off Valve Potentiometer Temperature Adjustment w Faceplate Solenoid Valve NAT amp LP Main Burner Orifice Natural Gas Main Burner Orifice LP x l 3975 Flame Sensor 0 9609100 LP 369076 369142 369007 lt 09 gt s gt Was ss 369902 369154 00 i 369124 ___ QQ 1 0 369152 369391 369316 369801 370058 369067 Air Switch Tube 70 Impinger 1000 Series Service Manual Domestic BLOW UP 1040 1041 Impinger 1000 Series Service Manual Domestic 71 PARTS 1200 1201 1204 AND 1205 LETTER P N DESCRIPTION 39247 1 3904 Pilot Light 369098 ThemiorPrbe 3995 Blower Air Switch oOo M 360007 TempeueSensngSWih 3692 SesigRoKt 36958 UntReayCovrToplH p NLA SeeBumerBlowerMotr Page 36958 Transommeri20 4V 4V O O O OOO O R 360866 BumeBoweMoorKi 837046 BuonOny U 372 DgielDipay v 36908 ThemosatKnob DegesF 369263 Valve Body Only NAT LP 360898 Control NAT amp LP 360099 Main Burner Orifice DD 36905 FameSe
89. t range you may have difficulty adjusting the max pot for a reading of 3 4 VDC In this instance a reading of 3 45 is acceptable Adjust speed pot to obtain the proper time setting for the conveyor to meet customers desired speed Check conveyor travel in a no load situation to insure conveyor belt is traveling at a constant speed GND 53 52 51 2 A 1 F2 F 1 L2 L1 DEM a TERMINAL STRIP D C CONTROL BOARD BODINE S N 100 4389 TOP VIEW Impinger 1000 Series Service Manual Domestic 45 MOTOR CONTROL BOARD 4390 14974 1000 SERIES GAS OVENS 4390 14790 1200 SERIES Three different styles control boards have been used three 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 Voltage at L1 and L2 terminals of the control board is to be 120 VAC 10 Connect 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 they stop DO NOT turn CL pot Adjust pot so the volt meter indicates 110 VDC 0 5 volts Adjust IR pot to read between 1 5 and 2 VDC above tach reading Example If tach reading would be 110 3 then adjust IR to between 111 8 VDC and 112 3 VDC Turn speed control pot to i
90. the conveyor motor shaft by loosening the set screws and sliding the sprocket off the shaft Unplug the conveyor motor wiring harness Remove the four 4 mounting bolts and nuts in reverse order and calibrate the conveyor D C control board See D C Motor Control Board Calibration Bodine System Impinger 1000 Series Service Manual Domestic 10 Ugo W ODS DOS C Dus DN 10 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 Unplug the wiring harness for the motor Disconnect the red and black wires from the terminals on the tach generator which is mounted on the top of the D C conveyor motor Note which terminal the red and black wires are attached to Reversing the polarity will cause motor to run wide open with no control from the speed pot Remove the four 4 mounting bolts Remove dust cover remove tach tach bracket coupling and optical encoder assembly for reinstallation on new motor assembly See page 82 Reassemble in reverse order and calibrate in the conveyor D C control board See D C Motor Control Board Calibration CON
91. tic checked until both MIN and are 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 To correct turn both the MAX and MIN pots 10 turns either direction and then 5 turns in opposite direction This will center the pots and allow them to be calibrated If after this procedure the board will not adjust it is probably defective L 1 1 AFUSE RESISTOR L2 A P2 gt P3 1 1 7 Ti T2 MAX MIN 1 T2 BOARD P N 369155 B BOARD P N 369272 STYLE2 RESISTOR CAPACITOR MIN MAX T1 T2 BOARD P N 369155 STYLE 3 Impinger 1000 Series Service Manual Domestic 47 STEPPER CONTROL ADJUSTMENT S N 14975 AND ABOVE 1000 SERIES GAS OVEN S N 14792 AND ABOVE 1200 SERIES GAS OVEN CURRENT SENSE DO NOT ADJUST Heat Sink Te NS Speed Adi Speed Adj Gray POWER LOCKED POTENTIOMETER display sad jn TIME TEMP 1 With power off the five 5 dip switches located on the conveyor control see drawing above should be set as below DIP SWITCHES CONTROL 1 2 3 4 5 SWITCH POSITION OFF OFF ON OFF OFF 2 With power o
92. ts minimum speed setting Adjust MIN pot so the voltmeter indicates between 2 and 6 VDC Turn speed control dial to obtain a reading of 22 VDC on your meter Observe for approximately 30 seconds to see if stable within 0 5 VDC Repeat at 35 VDC Check speed of conveyor and adjust time temp display if necessary Seal pots with Glyptol or nail polish 1 A L 1 A 4 A FUSE 1 A FUSE 4 A FUSE 1 A FUSE L MAX MIN IR CL T T2 MAX MIN IR CL TACH 1 2 BOARD 369155 BOARD 369272 STYLE 1 STYLE 2 AND STYLE 3 CONTROL BOARD ADJUSTMENT NOTE digital meter must be used Voltage L1 and L2 terminals of the control board is to be 120 10 Connect a digital voltmetet to terminal 1 T2 set the meter on DC scale Turn speed control pot on oven control panel to its maximum speed setting Adjust the pot so the voltmeter indicates 22 6 to 22 8 VDC Turn the speed control pot to its minimum speed setting Adjust the MIN pot so the voltmeter indicates 1 4 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 setting and check if voltage is still at 1 4 to 1 5 VDC Readjust if necessary If readjustment of either the MAX or MIN pot was necessary the opposite must always be 46 Impinger 1000 Series Service Manual Domes
93. ube Check 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 or pilot shut off valve If these are clear and there is gas supplied to the oven replace the ignition control and valve assembly pilot orifice for obstructions Replace as need Burner Ignitor Check the burner ignitor head for any obstructions also check for frayed or broken wire any type of damage to spark gap 100 in 2 5 m m If there is For ovens with Johnson Controls Ignition Control For ovens with Honeywell Ignition control See Pg 21 visible damage replace ignitor assembly Impinger 1000 Series Service Manual Domestic Pilot but main Sensor There should be visible pilot at this time flame To check for proper flame sensor operation connect a digital multimeter capable of measuring D C microamperes in series between the flame sensor wire normally connected to terminal 4 and terminal 4 NOTE This is a current measurement and the meter must be connected in series This procedure is for checking the pilot flame only Remove main valve wire Red from terminal 3 on ignition control With a visible pilot flame the current readings should be as follows Johnson G 65 control 0 2 micro amp D C minimum Johnson G 60 control 0 7 micro amp D C minimum If these values are
94. ve nut and washer from rear of relay assembly and remove assembly Install new relay in reverse order and check system operation TEMPERATURE CONTROL REPLACEMENT 1046 1047 Remove control panel top and front cover Remove one screw from control knob guard and move guard to one side Remove temp control knob and locknut Remove six 6 wires from temperature control board note wire colors and location Install new temperature control board in reverse order and check system operation RELAY GAS CONTROL REPLACEMENT MODEL 1046 1047 Shut off power at main breaker Remove control panel top and front cover Remove cover from relay box Disconnect all wires and mark for replacement Remove relay by removing two 2 mounting screw Reassemble in reverse order TIME DELAY RELAY 20 MINUTE REPLACEMENT Remove control box top and front cover Disconnect all wires and mark for replacement Remove center mounting screw Reassemble in reverse order NOTE Do not over tighten mounting screw as this may damage the internal electronic components CONVEYOR BEARING REPLACEMENT AND SHAFT LUBRICATION 1200 SERIES OVENS Remove conveyor from oven Remove conveyor belt Remove idle amp drive shaft assemblies Disassemble and clean replace parts as needed Use Molykote G N metal assembly paste for lubrication Impinger 1000 Series Service Manual Domestic THIS PAGE INTENTIONALLY LEFT BLANK Impinger 1000 Series Se
95. wich 369032 Rely O N 96815 Conveyor Motor Control 357028 Fuse Non Delay 1A 250V 8690201 Fuse 4 250 O 96020 __ P 369173 Control Transformer 00004 Q 369363 QJUntRelyCovrToplH O Z o y R 1 369154 JjO7AmpOircutBreker 2 369902 SensngRodKit 0 T See Burner Blower Motor Page34 O Z O Z y O U 369531 Transformer 20 2AV 40VA 96933 Finger Guard Cooling Fan 8690209 Temperature Gauge Not Show O Z 1 369009 Thermocouple Not Shown used with Temperature Gauge Gas Valve Body Only NAT LP 3690893 Ignition NAT amp LP 2204 DD 3606 Temperature Control Valve o 1 1 369099 Main Burner Orifice LP Ill 3869073 PilotOrifice Natural O 390 jPibctOrnfileLP 4 66 Impinger 1000 Series Service Manual Domestic BLOW 1000 1001 1004 1005 S N 4390 amp ABOVE Impinger 1000 Series Service Manual Domestic 67 PARTS 1022 1023 LETTER P N DESCRIPTION 369247 369012 369129 369013 369130 369064 369248 369260 369066 369158 369605 350225 369128 369022 369113 369115 369120 369127 357067 353014 369118 369007 369902 369154 0 7 Amp Circuit Breaker 369640 Control Stepper S N Q19078 amp Above 357028 369201 369240 369167 370046 369172 Digital Dis

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