PARTS & SERVICE MANUAL
Contents
1. pressure switch to NO Check for air tube blockage or misalignment Adjust air pressure switch If the above fails replace air pressure switch Ignition control A pre purge time of 30 to 60 seconds occurs after burner blower motor starts Check for high voltage spark output from the ignition control If there is no high voltage spark output check reset button for the ignition control If there is still no high voltage output replace the ignition control Igniter sensor assembly Check for visible damage to the igniter sensor assembly If there is visible damage to the igniter sensor assembly replace If there is no visible damage to the components and no spark replace the igniter sensor assy Also check for frayed or damaged wires in burner tube Replace components as needed Ignition control Gas valve should open as the ignition control generates the high voltage spark Check for supply voltage to pilot valve at terminal 5 and neutral If no voltage is present check reset button for the ignition control If there is still no voltage to the pilot valve replace ignition control Gas valve Check for supply voltage to pilot valve terminal 5 to neutral if there is no voltage trace wiring back to ignition control If there is supply voltage connect a manometer to the pressure tap fitting on the gas valve If Impinger Adv Digital Gas Service Manual International EEE pressure replace gas valve Pilot t2. 3 Remove two 2 wires on primary side note color and location 4 Remove two 2 wires on secondary side note color and location 5 Remove two 2 screws from transformer base and replace assembly 6 Reinstall in reverse order and check system operation CONVEYOR DRIVE MOTOR REPLACEMENT 1 Shut power off at main breaker 2 Remove control panel top and front cover 3 Loosen set screw on conveyor drive sprocket and slide sprocket off shaft 4 Disconnect motor plug 5 Remove four 4 screws from motor frame on control box side and remove motor assembly 6 Reassemble in reverse order making sure to align chain sprockets and adjust motor for proper chain tension 1 2 SAG CAPACITOR CONVEYOR MOTOR REPLACEMENT 1 Shut off power at main breaker 2 Remove control box cover and front panel 3 Discharge capacitor before removing wires Mark wires for reassembly 4 Remove mounting screw and remove capacitor 5 eassemble in reverse order and check system operation REVERSING SWITCH REPLACEMENT 1 Shut off power at main breaker 2 Remove control box cover and front panel 3 Disconnect wires from reversing switch and mark for reassembly 4 Remove mouniing nut and remove reversing switch 5 Reassemble in reverse order and check system operation REVERSING CONVEYOR DIRECTION All ovens leaving our plant are wired to operate conveyors from left to right To reverse conveyor direction use the following procedure 1
3. KE mm 135 SON 5 amp a eS OF hu HJLIMS YOASANOD 30 ge da t NOTLIIYIO 3S93A33 OL 21 89 a JLON 69 w e 65 3 UL 988 lje v aq Impinger Adv Digital Gas Service Manual International SCHEMATIC DIAGRAM MODEL 1456 1457 SERIAL NUMBER N28654 TO N31348 SUSAN JUIM QW 328055304 HIV N3A0 HOLIMS ZS JOYLNOD u3MHOJSNYMI HX YaMOd NJAO HOLIMS IS NOILVIN93H IVNLVYIGMIL SATIVA ZA UOAJANOJ 801000 PH NIYH 3 10714 JAWA LA NYJ NIYH UOLOW EW 5 99 3dAL 31400000003001 IL 0305378 H3NUNA HOLON ZW l s s Arn SSO ie EE pui SSS ODOTE KI BBE Poo 1 d 9N1 1005 X08 7100105 IVISOMH3HI IL VOL N3AO 3604 4 DIT 8011923039 AUYdS 95 NJAO 1041NO2 NOD ROTIVENSTINGS TE HER Y DOMUM an EE NS Se III gh RC A I wm Oa en EIUS 19634 HININ HOLIMS PS 1081N00 M3NH B 8 2 JUNSSJHd 131841 SV9 HOLIMS ES WUVIV Y NOTLISOd LX3N OL SS CHOLIMS YOAJANOJ JO 0011033810 35H3 3d Ol ONNOYD EE r epe oles Us tir ele Q G9 _ SSOGOFPISPZ OESSSEPE D d GEET EOBOXE PX B E ee De 4 d Sf df Hiat F lk ET E HT EET GD 1 lt lt m Mbzja L o E AOve OL Waar IV L K YAWN SOVLIOA noe o EA l l i ri er 1 DI EL EF m fo E E
4. CONE TO FAN SPIDER FAN HUB 1 1 2 INCH CONE y CAPACITOR MOTOR REPLACEMENT 1 Shut off power at main breaker 2 Remove motor cover from back of oven 3 Discharge capacitor 4 Remove and replace COOLING FAN CONTROL BOX REPLACEMENT 1 Shut off power at main breaker 2 Remove control panel top and front cover 3 Remove four 4 screws from the fan frame 4 Disconnect cord and plug and remove fan 5 Reassemble in reverse order 12 Impinger Adv Digital Gas Service Manual International THERMOSTAT COOLING FAN REPLACEMENT 1 Shut off power at main breaker 2 Remove control panel top and front cover 3 Remove lead wires and mark for reassembly 4 Remove two 2 screws and remove thermostat 5 Reassemble in reverse order BURNER BLOWER MOTOR REPLACEMENT 1 Shut off power at main breaker 2 Remove control panel top and front cover 3 Unplug motor connector 4 Remove three 3 screws from blower tube at burner housing 5 Remove air shutter assembly from old motor for installation on new motor assembly 6 Reassemble in reverse order and check system operation NOTE Check air shutter adjustment and adjust if necessary Set air shutter at approx 1 4 and adjust to get a blue flame with an occasional tip of yellow under high flame A view port in the burner assembly should be used to observe flame BLOWER WHEEL BURNER This is part of the burner blower motor assembly TO REMOVE THE BLOWER WHEEL FOR PE
5. Impinger Adv Digital Gas Service Manual International 8 Remove burner assembly from housing the main and pilot orifice flame target pilot shield main and extension burner ignitor can now be changed or serviced as needed 9 Reassemble in reverse order Check all gas line fittings for leaks GAS CONTROL VALVE REPLACEMENT S N N31348 and Below 1 Shut off power at main breaker 2 Shut off gas supply 3 Remove control panel top and front cover 4 Remove the four screws from the incoming nipple mounting bracket and remove pipe 5 Disconnect two plugs from gas control valve and mark locations 6 Remove pilot tube assembly from gas control valve 7 Disconnect pipe union just above temperature regulation valve 8 Remove piping from old valve for installation on new valve 9 Reassemble in reverse order Check all gas line fittings for leaks After assembling check for proper adjustment of gas pressure switch 10 on dial for natural gas 27 for LP gas or 4 5 for town gas 10 Check and adjust manifold pressure Remove pressure tap located in gas piping and install manometer Adjustment screw is located on the front of the valve adjust as needed 2 5 W C for natural gas 10 for LP or 2 0 W C for town gas 11 Check filter by removing cover plate located on either side of valve Remove four screws and slide filter out of valve and inspect Reassemble in reverse order and check for leaks GAS CONTROL VALVE R
6. Shut off power at oven switch 2 Set conveyor reversing switch in the other position 3 Turn oven on and check for proper operation MAIN ORIFICE REPLACEMENT 1 Shut off power at main breaker 2 Remove control panel top and front panel 3 Remove gas control valve assy 4 Remove two 2 nuts from burner orifice bracket 5 Disconnect pipe union 16 Impinger Adv Digital Gas Service Manual International 6 Remove assembly and replace main orifice 7 Reassemble in reverse order and check system operation NOTE Check all gas line fittings for leaks PILOT ORIFICE REPLACEMENT 1 Shut off power at main breaker 2 Shut off gas supply 3 Remove burner assembly See Burner Assembly 4 Remove pilot line from pilot orifice 5 Remove pilot orifice from burner ignitor 6 Reassemble in reverse order NOTE Check all gas line fittings for leaks ON OFF SWITCH REPLACEMENT 1 Shut off power at main breaker 2 Remove control box cover 3 Remove access cover 4 Depress spring clips on side of switch and push out 5 Remove wires from back of switch note wire number and location 6 Reassemble in reverse order and check system operation NOTE Make sure switch housing is fully seated in control box housing OVEN CONTROL REPLACEMENT In O OU 2 G TI Shut off power at main breaker Remove control box cover and front panel Remove all wiring connections and mark for reassembly Remove oven contr
7. check system operation rd SS AIR PRESSURE SWITCH REPLACEMENT 1 Shut off power at main breaker 2 Remove control panel top and front cover 3 Disconnect wires from air pressure switch and mark for reassembly 4 Remove air switch tube from air pressure switch 5 NOTE There are two types of air pressure switches used Remove air pressure switch from its mount 6 Reassemble in reverse order and check system operation 7 To adjust air pressure switch remove cover from switch to expose adjusting screw To increase sensitivity turn screw counter clockwise To decrease sensitivity turn screw clockwise THERMOCOUPLE TYPE K REPLACEMENT 1 Shut off power at main breaker 2 Remove control panel top and front cover 3 Slide thermocouple out of oven chamber NOTE Remove conveyor and bottom fingers to aid in removal and installation of thermocouple 4 Remove two 2 wires from temperature control Make note of wire numbers or color and location for reinstallation 5 Reassemble in reverse order making sure the metal end on the thermocouple is in the wire form in the oven chamber Impinger Adv Digital Gas Service Manual International THERMOCOUPLE MEASURMENT TEMPERATURE D C MILLVOLTS APPROX 200 2 8 250 4 0 300 5 1 350 6 0 400 7 1 450 8 2 500 9 3 550 10 4 600 11 5 CONTROL TRANSFORMER REPLACEMENT 1 Shut power off at main breaker 2 Remove control panel top and front cover
8. is open Also check flexible gas line connection Air pressure switch Check air switch terminals for supply voltage to terminals COM and NO If voltage is present on one side only check for air tube blockage or misalignment If these are okay adjust air pressure switch or replace switch as needed Oven cavity hi limit Terminals are normally closed opens at 350 C 660 F thermostat If open reset and test oven for proper operation If thermostat will not hold for maximum temperature and oven is not exceeding control setting check for proper location of the capillary bulb in its spring holder If above checks are okay replace hi limit thermostat Ignition control Check for supply voltage to ignition control at terminal 1 and neutral If no voltage is present trace wiring back to hi limit thermostat If voltage is present check for supply voltage to burner blower motor at terminal 48 and neutral If no voltage is present wait 30 seconds reset ignition control and re try If the above fails replace ignition control closes when reset button is pushed Replace as needed Burner blower motor Check for supply voltage to burner blower motor If no voltage is present trace wiring back to the ignition control WITH POWER OFF Turn blower wheel to check for locked rotor If supply voltage is present and motor does not run replace burner blower motor Burner blower motor air Check for air pressure switch to be switching from NC
9. remove mounting nut Remove switch from control box 5 Reassemble in reverse order and check system operation Impinger Adv Digital Gas Service Manual International THERMOSTAT OVEN CAVITY HI LIMIT REPLACEMENT 1 Shut off power at main breaker 2 Remove control box cover and front panel Remove conveyor assembly and fingers from oven to aid in removal of thermostat from oven 3 Disconnect wires from thermostat and mark for reassembly 4 Remove thermostat from oven 5 Reassemble in reverse order and check system operation BURNER IGNITOR REPLACEMENT 1 Shut off power at main breaker 2 Remove control panel top and front cover 3 Remove burner assembly SEE BURNER ASSY 4 Remove pilot shield and pilot shield extension 5 Remove burner ignitor 6 Reassemble in reverse order spark gap approx 100 in or 2 5 mm NOTE Be sure to reconnect burner ignitor cable to ignition control BURNER ALARM REPLACEMENT 1 Shut off power at main breaker 2 Remove control panel top and front cover 3 Remove two wires from alarm and mark for reassembly 4 Remove mounting ring from burner alarm and remove alarm 5 Reassemble in reverse order and check system operation SPARK GENERATOR REPLACEMENT Shut off power at main breaker Remove two wires for spark generator Unplug connector on bottom of spark generator Remove two mounting screws and remove spark generator Reassemble in reverse order and
10. reset button Check all connections for tightness If there is still no voltage at the gas valve replace ignition control If there is voltage present check for gas pressure at gas pressure tap located in gas piping If there is no gas pressure replace gas valve Flame will not stay on Flame sensor Check for flame sensor operation connect a digital multimeter capable of measuring DC microamps between the flame sensor wire and terminal 1 on the ignition control Sensor current is to be 3 microamps minimum If these readings are not achieved replace igniter sensor assembly Also check for any type of damage to flame sensor wire and connections NOTE The DC microamp test must be conducted with the oven in low flame bypass operation Power supply Set the temperature to the lowest temperature setting If there is sufficient microamp current but the flame will not stay on check for proper polarity of the power supply Ignition control If there is sufficient microamp current and there is proper polarity of the power supply but the burner will Impinger Adv Digital Gas Service Manual International 7 not stay on check the reset button for the ignition control If the above check okay replace ignition control Oven will not heat Main fan If not operating refer to Oven fan will not run S N N31349 and Above Gas supply Check for adequate gas supply and be sure that the gt manual gas shut off valve
11. supply voltage to burner blower motor at terminal 46 and neutral If no voltage is present wait 30 seconds reset ignition control and re try If the above fails replace ignition control closes when reset button is pushed Replace as needed Burner blower motor Check for supply voltage to burner blower motor If no voltage is present trace wiring back to the ignition control WITH POWER OFF Turn blower wheel to check for locked rotor If supply voltage is present and motor does not run replace burner blower motor Burner blower motor air Check for supply voltage switching to terminal NO as the pressure switch air pressure switch closes Check for air tube blockage or misalignment adjust air pressure switch If the above fails replace air pressure switch Spark generator After a pre purge time of 30 to 60 seconds after burner blower motor starts check for supply voltage to spark generator If voltage is not present check burner reset switch If voltage is still not present replace ignition control If voltage is present visually check for spark at igniter Igniter sensor assembly Check for visible damage to the igniter sensor assembly If there is no visible damage to the components and no spark replace the spark generator If there is visible damage to the igniter sensor assembly replace Also check for frayed or damaged wires in burner tube Gas valve Check for supply voltage to gas valve If no voltage is present check
12. the oven power switch supplies line voltage to the conveyor motor and to the primary of the control transformer Secondary voltage 24VAC is supplied to the oven control Setting the oven control to the desired time outputs voltage through a reversing switch to the conveyor motor NOTE The conveyor system uses a hall effect sensor and magnet to prove operation of the conveyor motor If the motor is not running BELT JAM is indicated on the display Impinger Adv Digital Gas Service Manual International SCHEMATIC DIAGRAM MODEL 1433 000 E 1434 000 E SERIAL NUMBER N28654 TO N31348 E C M SUJBWNN JUIN X 380553804 131701 SVO HOLIMS ZS 2 JOHINOO HINHOASNYUL LUX VO NJAO HOLIMS IS NOIlV 0938 IMNLVHIGMIL JAWA ZA HOAJANOD HOlOM PH I 10114 3 NI JAWA LA NYJ MIN HO10M EM A 3dAL 314000000301 21 HOME YINUNG YOLON ZH 3 000 vE EE I 4081N09 wuar 30018 NINII cal a ONT 1000 H E Ne tad pae WP kn XN UM g i YNY ONI o0 9N11002 X08 TOMINO 1VIGOHUHI Z1 ANO SN3A0 30 IN 831111 114 ovg STOPA eA 3e0 poo 1111 HOTH X08 7081102 LVISONH3HL LL VOL N3A0 35nd 4 TWTH 2820110283039 VAS 9S N3AO QHINOO NOD MODU 751195551365 TE s HESE EIS 9 We wn berg FETT TT TY EE EE TT TG t 0 EM 13534 030008 HOLIAS FS TOULNOD HNN 28 EEE ER 200553804 HIY NJAO HOLIMS ES Wuvlv Y 5 TT S l3 0 w Adve OL YINE 39V110
13. EPLACEMENT S N N31349 and Above 1 Shut off power at main breaker 2 Shut off gas supply 3 Remove control panel top and front cover 4 Disconnect the gas piping from the back of the unit 5 Remove the mounting screw from the incoming pipe nipple and remove the incoming piping nipple 6 Remove pilot tube assembly from gas valve 7 Disconnect wiring from gas valve Mark all wiring for reassembly 8 Disconnect pipe union and remove gas valve 9 Remove piping from old valve and reassemble in reverse order 10 Check system for proper operation Check all gas line fittings for leaks 11 Adjust the gas manifold pressure on the gas valve Refer to the specification plate on the oven for proper rating TEMPERATURE REGULATION VALVE REPLACEMENT 1 Shut off power at main breaker 2 Shut off gas supply 3 Remove control panel top and front cover 4 Remove gas control valve See GAS CONTROL VALVE o Disconnect wires from temperature regulation valve 6 Remove two 2 hex nuts that hold main orifice bracket in place 7 Remove temperature regulation valve assembly 8 Remove piping from temperature regulation valve 9 Reassemble in reverse order 10 Check all fittings for leaks SWITCH BURNER RESET REPLACEMENT 14 1 Shut off power at main breaker 2 Remove control box cover and front panel 3 Disconnect reset switch wires from burner control and mark for reassembly 4 Pull off black button from switch and
14. RIODIC CLEANING 1 Shut off power at main breaker 2 Remove control panel top and front cover 3 Remove air shutter held by 3 screws 4 Loosen set screws on blower wheel hub and pull straight out 5 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 BURNER CONTROL REPLACEMENT S N N31348 and Below 1 Shut off power at main breaker 2 Remove control panel top and front cover 3 Remove front portion of control by releasing tabs on sides and pulling out rocking motion 4 Remove wires from plug in terminal strip note wire numbers and location 5 Remove two screws from mounting bracket and remove 6 Reassemble in reverse order and check system operation BURNER CONTROL REPLACEMENNT S N N31349 and above 1 Shut off power at main breaker 2 Remove control panel top and front cover 3 Remove wires from control Mark all wiring for reassembly 4 Remove two mounting screws from control and remove control 5 Reassemble in reverse order and check system operation BURNER ASSEMBLY 1 Shut off power at main breaker 2 Shut off gas supply 3 Remove control panel top and front panel 4 Remove gas control valve See GAS CONTROL VALVE 5 Disconnect pilot tube 6 Remove solenoid valve See TEMPERATURE REGULATION VALVE 7 Remove four 4 screws that secure the burner backing plate
15. Solenoid Valve 1 96909 X MaiOrfie LPO 870114 Main Orifice Town Gas 92960142 lame Target P 1 8703862 3 Thermocouple Type K 2 A 96059 _ Blower Motor R J 369899 9 Air Shutter Assembly DD 369574 Spark Generator S N N31348 amp Below Ignition Control S N N31348 amp Below 3 0396 Ignition Control S N N31349 amp Above 369100 Bypass Orifice LP Impinger Adv Digital Gas Service Manual International Impinger Adv Digital Gas Service Manual International 21 22 OVEN BACK ADVANTAQE SERIES GAS AND ELECTRIC 1 370140 Cover motor electric ovens B 369214 Motor mainfan 50Hz 990833 Motorclamp 4 D 3969215 Motor support assembly BE 9 369192 Capacitor 7 5MFD 5 9 369306 Oven back assembly gas oven J 49369060 9 JStadof 4 H 9 369647 J lnletpml JJ 369218 Manan 4 K 369547 Bracket thermostat M 369287 Heating element 2080 4 369315 Heating element 2200 969122 Heating element 240V Impinger Adv Digital Gas Service Manual International Impinger Adv Digital Gas Service Manual International WWW AA 23 24 CONVEYOR 1450 SERIES _ PART NUMBER DESCRIPTION 369830 Complete conveyor assembly w a1 Conveyor belt complete 30 inch wide belt 369163 C
16. TMENTS IMPINGER ADVANTAGE SERIES CAUTION BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE IMPINGER OVEN BE SURE TO DISCONNECT ELECTRICAL POWER AND GAS SUPPLY MOTOR MAIN FAN REPLACEMENT 1 Shut off power at main breaker 2 Remove louvered motor cover from back of oven 3 Remove wireway by taking out the 5 five hex screws 4 Disconnect wiring from motor 5 Remove the twelve 12 hex head bolts from the oven back and slide back straight out of the oven 6 Remove two 2 bolts from fan hub and remove fan from motor shaft NOTE Measure distance from fan blade to rear wall assembly before removal to aid in reassembly 7 Remove the eight 8 hex head bolts from the motor mount and slide the motor assembly out of the oven back 8 Remove motor by taking off motor clamp and removing the four 4 mounting nuts and washers 9 Reassemble in reverse order When motor mount assembly is set on the oven back align motor shaft in the center of the hole Set fan assembly on the motor shaft NOTE A Torque specs on bolts 150 in lb torque B It is recommended that an anti seize compound be brushed on to the bolts around the back and motor mount bracket before assembly FAN MAIN REPLACEMENT Shut off power at main breaker Remove back assembly See MOTOR MAIN FAN Reinstall and locate fan so that the bottom of the fan spider is 1 1 2 from the top of the oven back cone See Drawing FAN SPIDER NOTE MEASUREMENT MUST BE MADE FROM
17. box cooling plug to be sure it is firmly in receptacle Measure incoming power call power co if required Oven will not heat If not operating refer to Oven fan will not run terminals NO2 and COM If voltage is present on one switch as needed Oven cavity hi limit thermostat Terminals are normally closed opens at 350 C 660 F If open reset and test oven for proper operation If thermostat will not hold for maximum temperature and oven is not exceeding control setting check for proper location of the capillary bulb in its spring holder If above checks are okay replace hi limit thermostat Gas pressure switch This switch is located inside the gas valve and should close when gas pressure is present Impinger Adv Digital Gas Service Manual International WITH POWER OFF Remove 3 prong plug on gas valve and measure continuity between terminals 2 and 3 If no continuity check the following Proper gas pressure supply to gas valve as marked on the oven specification plate Check for proper adjustment of the gas pressure switch 10 for Nat gas 27 for LP gas or 4 5 for town gas Check the filter in the gas valve for blockage or damage If above checks are okay but pressure switch is still not closed replace gas valve Ignition control Check for supply voltage to ignition control at terminal 1 and neutral If no voltage is present trace wiring back to gas pressure switch If voltage is present check for
18. l 990560 ros sce cr P C L 191 FEBA pe YOLOM 135 310N NO9 98 Droe m D gh g 9 0 d TS L ll 8 8 5 Impinger Adv Digital Gas Service Manual International SCHEMATIC DIAGRAM MODEL 1433 000 E 1434 000 E 1456 1457 SERIAL NUMBER N31349 AND ABOVE FORT Wun INDIARA IHPINGER ADTANTAGE mm LGOS EED aj Lk lge OG bor E P B BE E BR PE 8 3 a iL E a else EH OG Lj a ET ei Hi i ALTI 5 ei a A rd EHE SE Impinger Adv Digital Gas Service Manual International TROUBLESHOOTING GUIDE IMPINGER ADVANTAGE GAS OVENS SERIAL NUMBER N28654 AND ABOVE OVENS WITH PUSH BUTTON CONTROLS _ POSSIBLE CAUSE Oven fan will not run POSSIBLE CAUSE power supply Check circuit breaker reset if required Check power plug to be sure it is firmly in receptacle Measure incoming power call power co if required Fuse 10Amp Check replace if necessary Fuseholder Check replace if necessary Switch oven power Check for line voltage supplied to switch If no voltage is present trace wiring back to fuse holder Check continuity between switch terminals Replace switch as needed Motor main fan Check for line voltage supplied to motor If no voltage is present trace wiring back to oven power switch Check motor for opens shorts or grounds WITH POWER OFF Turn fan blade to check for locked rotor No control box cooling Incoming power su
19. lation valve proceed Check for supply voltage to the temperature regulation valve If voltage is present listen for valve to open and close Also check for opens or shorts in the operating coil Replace temperature regulation valve as needed The main fan motor and burner blower motor are equipped with internal thermal protection and will cease to operate if overheating occurs As the motors overheat and cool this will cause the heating system to cycle on and off intermittently Improper ventilation or lack of preventive maintenance may cause this problem Also most of the problems listed under Oven will not heat can cause intermittent failure Check circuit breaker reset if required Check power plug to be sure it is firmly in receptacle Measure incoming power call power co if required Check replace if necessary Check for line voltage supplied to switch If no voltage is present trace wiring back to fuse holder Check continuity between switch terminals Replace switch as needed Check for supply voltage to primary of control transformer If no voltage is present trace wiring back to oven power switch If voltage is present check for 24VAC at transformer secondary If there is primary voltage but no secondary voltage replace control transformer Check for supply voltage to the conveyor motor at terminal 6 to neutral If no voltage is present trace wiring back to oven power switch If voltage is present but the motor
20. mally open contact of the oven power switch Power is also supplied to the control box cooling fan Closing the oven power switch supplies line voltage to the main fan motor Closing the oven power switch also supplies line voltage to the heat circuit and to the primary of the oven control transformer BURNER CIRCUIT Closing the oven power switch supplies line voltage through the main fan air pressure switch through the normally closed oven cavity hi limit thermostat Through the gas pressure proving switch gas pressure switch removed at S N N31348 to the ignition control The combustion motor is now energized the normally open combustion air switch closes upon sensing air After a pre purge period between 30 and 60 seconds the spark generator and the main gas valve are energized Ignition should now occur TEMPERATURE CONTROL Closing the oven fan switch supplies line voltage to the primary of the control transformer and through the ignition control to the oven control Secondary voltage 24VAC is supplied to the oven control The oven control is set to desired temperature The thermocouple will provide varying millivolts to the oven control The oven control supplies line voltage to the temperature regulation valve at intermittent intervals to maintain desired temperature The display on the oven control will indicate when the temperature regulation valve is energized NOTE The display also indicates oven temperature CONVEYOR DRIVE Closing
21. ol by pulling control from the mounting pins Remove control from oven Before installing new oven control set voltage jumper located at the bottom center of the oven control to the proper voltage 120V 240V position Install the four pushbutton extensions included with the oven control by pushing the extensions onto the four set buttons on control Reassemble in reverse order and check system operation Set the oven control for the proper operating mode The 1400 series ovens use a single temperature control system The oven control must be set to the proper operating mode Set the control as follows With the oven power switch off depress the time and up buttons and turn the oven on Control will indicate Imp I or Imp II Release the buttons Press the up or down button until Imp I and temp to store appears on the display Press the temp button The control is now set for Impinger I conveyor and single burner operation FUSE HOLDER REPLACEMENT dm hug Shut off power at main breaker Remove control box cover Remove all wiring from fuse holder and mark for reassembly Remove mounting nut for fuse holder and remove fuse holder Reassemble in reverse order and check system operation BEARING CONVEYOR REPLAGEMENT EONS Remove conveyor from oven and place on flat work surface Remove connecting links from conveyor belt See Installation and operations manual Remo
22. on 1 Lincoln PARTS amp SERVICE MANUAL Impinger Advantage Gasw Push Button Controls Advantage Digital Series Intemationa I MODELS Please note that the model numbering system changed March 2007 The chart below showsthe old model numbering system and itsmatching new model number 1433 00z U Kxxxx Europe 1456 1446 00z U Kxxxx 1457 1457 00z U Kxxxx 1434 000 E 1447 00z U Kxxxx Asia P N L371085 REV 4 1 09 Lincoln Foodservice Products LLC 1111 North Hadley Road Fort Wayne Indiana 46804 Telephone 260 459 8200 Fax 888 790 8193 Technical Support 800 678 9511 linc olnfp com SEQUENCE OF OPERATION IMPINGER ADVANTAGE SERIAL NUMBER N28654 AND ABOVE OVENS WITH PUSH BUTTON CONTROLS MODEL 1433 000 230VAC 50 HZ NAT GAS MODEL 1434 000 E 230VAC 50 HZ LP GAS MODEL 1456 220 240VAC 50 HZ NAT GAS MODEL 1457 220 240VAC 50 HZ LP GAS POWER SUPPLY Electrical power is to be supplied to the oven by a three conductor service Brown conductor is hot Blue conductor is neutral Green conductor is ground CONTROL BOX AUTO When the temperature in the control box reaches 120 F 3 F 48 9 G COOL DOWN 1 790 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 3 F 37 C 1 7 C MAIN FAN CIRCUIT Electrical power is permanently supplied through the 10 Amp oven fuse to a nor
23. onveyor belt complete 32 inch wide i LUTTE E Conveyor belt 1 foot section 30 inch wide belt 369362 Conveyor belt 1 foot section 32 inch wide belt B 1 392 Retaining ring 3913 ___ Conveyor bearing block D 369314 Roll conveyor notched E 9698122 Conveyor idler shaft EL 9690160 X Conveyor pan stop EINE EN Connecting link 30 inch wide belt 369005 Connecting link 32 inch wide belt H 369811 Conveyor drive shaft 9690161 Roller chain sprocket K 2 36980 Lummen A4 0 370050 LM 369162 Qnm ACI lt Impinger Adv Digital Gas Service Manual International Impinger Adv Digital Gas Service Manual International 25 26 This page intentionally left blank Impinger Adv Digital Gas Service Manual International This page intentionally left blank Impinger Adv Digital Gas Service Manual International 27 gt e Lincoln anrtowoc
24. pply Check circuit breaker reset if required Check power plug to be sure it is firmly in receptacle Measure incoming power call power co if required Switch oven power Check for line voltage supplied to switch If no voltage needed Cooling fan thermostat Check cooling fan thermostat thermostat closes at 120 F and opens at 100 F With cooling fan thermostat pre heated check for continuity S N N31348 and Gas supply Check for adequate gas supply and be sure that the Below manual gas shut off valve is open Also check flexible gas line connection side only check for air tube blockage or misalignment If Fuse 10 Amp Check replace if necessary is present trace wiring back to fuse holder Check Cooling fan Check for supply voltage to the cooling fan If no voltage is present trace wiring back to the fuse holder If voltage is present and motor does not run check motor for opens shorts or grounds WITH POWER OFF Check for locked rotor Control box cooling fan Cooling fan thermostat See Cooling fan thermostat NOTE Thermostat will continues to run remain closed if control box temperature remains above 120 F Air pressure switch Check air switch terminals for supply voltage to these are okay adjust air pressure switch or replace Fuse holder Check replace if necessary continuity between switch terminals Replace switch as No automatic control Incoming power supply Check circuit breaker reset if required Check power
25. r If no voltage is present trace wiring back to oven power switch If voltage is present check for 24VAC at transformer secondary If there is primary voltage but no secondary voltage replace control transformer Oven control Check for 24VAC supply to oven control If no voltage is present trace wiring back to control transformer Check for supply voltage to oven control If no voltage is present trace wiring back to ignition control If voltage is present check for a read out on the display If there is no read out on the display replace oven control If there is a read out on the display set the oven control to maximum temperature see installation operations manual for temperature adjustment With the oven control at maximum temperature check for supply voltage to the temperature regulation valve If there is voltage at the temperature regulation valve proceed to Temperature regulation valve If there is no voltage at the temperature regulation valve trace wiring back to the oven control If there is no voltage output at the oven control check the read out on the oven control If the oven control reads PROBE FAIL this indicates that the thermocouple has failed or become disconnected from the oven control Thermocouple Check to see that the thermocouple is securely connected to the oven control If the thermocouple is connected to the oven control and the display indicates PROBE FAIL disconnect the thermocouple from
26. the oven control and measure the resistance of the thermocouple The thermocouple should read approx 116 If these readings are not achieved replace the thermocouple If these readings are correct proceed Impinger Adv Digital Gas Service Manual International Oven control Thermocouple Oven control Temperature regulation valve Intermittent heating Thermal overload of main fan and burner blower motor Conveyor will not run Incoming power supply Fuse 10 Amp Fuse holder Switch oven power Control transformer Conveyor motor Capacitor conveyor motor Switch conveyor reversing Oven control NOTE Display will indicate BELT JAM Conveyor motor runs but there is no speed display Oven control If the thermocouple checks good but the oven control display indicates that there is a thermocouple failure replace the oven control If the oven control indicates a temperature reading but the oven will not heat proceed WITH POWER ON AND THERMOCOUPLE ATTACHED TO THE OVEN CONTROL Measure the DC millivolt output of the thermocouple Refer to the thermocouple chart located in the Removal section of the manual for proper millivolt readings If these readings are not achieved replace thermocouple If the thermocouple checks good but there is no supply voltage output to the temperature regulation valve replace the oven control If there is supply voltage output to the temperature regu
27. ube Check for gas pressure at pilot tube Disconnect pilot tube at burner and connect manometer If there is no gas pressure check for blockage in pilot tube Repair or replace as needed Pilot orifice If there is gas pressure at the pilot tube check the pilot orifice for damage or obstructions Replace pilot orifice as needed Flame will not stayon Flame sensor To check flame sensor operation connect a digital multimeter capable of measuring D C microamps between the flame sensor wire and the flame sensor connection on the ignition control terminal 413 Flame sensor current is to be 0 7 microamps minimum If these readings are not achieved replace igniter sensor assembly Also check for any type of damage to flame sensor wire and conneciions NOTE The D C microamp test must be conducted with the oven in low flame bypass operation Power supply Set the temperature to the lowest temperature setting If there is sufficient microamp current but the flame will not stay lit check for proper polarity of the power supply Ignition control If there is sufficient microamp current and there is proper polarity of the power supply but the burner will NOTE Flame should be on at this time not stay lit check the reset button for the ignition control If the above test is okay replace the ignition control Low flame is on but Control transformer no main flame Check for supply voltage to primary of control transforme
28. ve conveyor belt from conveyor Remove drive sprocket from drive shaft if required Move shaft toward end of conveyor and shaft with bearings will now slip out of holding bracket Replace bearing and reassemble in reverse order Impinger Adv Digital Gas Service Manual International 17 18 GENERAL VIEW ADVANTAQE SERIES B 869110 Access window assembly 369929 Retainer new style 1 0 D 3988 Handlespacer E 4960920 Jlath amp stke 0 0 0 0 m QT NENNEN NN 369308 Bottom access window 8 369934 Access door glass o 969030 9 Top access window Z o o Oo bk 295068 Hande gt gt L 369311 4 JHandespaer 2reqg O o wi Cc FIN Compression spring Thumb screw not shown AA DD 369373 __ Receptacle snap in LL Columnating plates see installation operations manual 00 369926 Window frame bottom PP 369925 Glass access window QQ J 369927 X Window frame top Impinger Adv Digital Gas Service Manual International Impinger Adv Digital Gas Service Manual International 20 CONTROL BOX 1456 1457 1433 000 E 1434 000 E 8 370885 Oven Control amp D 37054 O Facia Label Gas Valve Multi Block S N N31348 amp Below 3 0433 Gas Valve S N N31349 amp Above Hd 370186
29. will not run check the motor windings for opens or shorts If any of the above checks fail replace conveyor motor Check for shorts or grounds Replace capacitor as needed WARNING Capacitor has a stored charge discharge before testing Check continuity between switch terminals Replace switch as needed If there is voltage supplied to the motor and the motor capacitor and reversing switch check good replace the oven control Check for output voltage from oven control to hall effect Impinger Adv Digital Gas Service Manual International Conveyor motor sensor sensor is located in the conveyor motor Measure voltage at the motor connector red wire and yellow wire Voltage should be approx 10VDC If no voltage is present trace wiring back to oven control If there is no voltage output at the oven control replace oven control If there is voltage supplied to the hall effect sensor check for a frequency output from the hall effect sensor Measure frequency across the yellow and white wires in the motor connector Frequency reading should be approx 25 100 Hz If these readings are not achieved replace conveyor motor If the readings are achieved proceed If the hall effect sensor readings are correct but there is no speed indicated on the display replace the oven EE m Impinger Adv Digital Gas Service Manual International control 11 REMOVAL INSTALLATION amp ADJUS
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