Home

service manual (international)

1. JE M En ST CERTIFIED SERVICE AND PARTS Impinger Adv Digital Gas Service Manual International
2. Jum naat oes wo TA p SIGE 2OXv EOE L b i Ki me m p T P w SY Adve OL d d UII 39 1 10A WIW 136 73109 PD dj eg H91IMS YOASANOD 30 GA t NO 1934IQ 3SH3A3 01 2 89 3103 69 e 69 3 LL Her Impinger I Adv Digital Gas Service Manual International SCHEMATIC DIAGRAM MODEL 1456 1457 SERIAL NUMBER N28654 TO N31348 SUN 3YIM QY JOMINOO HIMHOASNVUL LUX 3 NOTLVINOIY 3univu3dW3l 3ATYA ZA M3IA 3 10119 JAWA LA 45 8951 DO A 3dAL F10NO00WUIHL 21 VVIONI AN ME RN Sh i AVM 1903 2591 I AlddnS 30078 WNIWHAL 181 pul eTpmposndi OES LIWII H9IH NJAO AVISOMHIHL 21 9N11002 X08 GI IVISOWMIHL IL TOT IVT 15 aweien HOLIAG Og NOTLYHNOTINOO 15 GNOILVUNS1INOD SNISNOH 133205 JUNSSIUd BIY 43M078 H3Nung8 HOLIMS SS NE j 13593 M3Nun8 HOLIMS 5 Ps TN O 2 CE CET 3unsS3ud 137NI SY9 HOLIMS ES NOTLISOd LX3N 01 95 CHOLTAS YOAJANOJ 30 NO110381d 35H3A3U OL ESSENSE NT ENEE D meas ea hts BE EL app e 5 ee 00 a Ge 21 ss fis 29 Ke San STK ME we 8 m dog Nolo 135 ION NOD 1 Kl EH kleene SH lt ESS 3uhss3dd HIV N3AO HOLIMS 25 Y3MOd N3AO HOLIMS 15 YOABANOD BO
3. 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 TI 269 FD gt Shut off power at main breaker Remove control box cover and front panel Remove all wiring connections and mark for reassembly Remove oven control 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 and temp to store appears on the display Press the temp button The control is now set for Imping
4. SERVICE MANUAL INTERNATIONAL IMPINGER CONVEYOR OVENS MODEL 1433 000 E 1434 000 E 1456 1457 WITH PUSH BUTTON CONTROLS 9 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 Intl 260 436 0735 Technical Service Hot Line 800 678 9511 www lincolnfp com _ gt lt AR En ST CERTIFIED SERVICE AND PARTS 1450digexport REV 1 5 07 SEQUENCE OF OPERATION IMPINGER ADVANTAGE SERIAL NUMBER N28654 AND ABOVE OVENS WITH PUSH BUTTON CONTROLS MODEL 1433 000 E 230VAC 50 HZ NAT GAS MODEL 1434 000 E 230VAC 50 HZ LP GAS MODEL 1456 220 240VAG 50 HZ NAT GAS MODEL 1457 220 240VAG 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 C COOL DOWN 1 7 C 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 87 C 1 7 C MAIN FAN CIRCUIT Electrical power is permanently supplied through the 10 Amp oven fuse to a normally open contact of the oven power switch Power is also supplied to the control box cooling fan Closing the oven p
5. 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 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 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
6. wire numbers or color and location for reinstallation 5 Reassemble in reverse order making sure the metal end on the thermocouple is the wire form in the oven chamber Impinger Adv Digital Gas Service Manual International 15 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 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
7. L pH NIYH HOLOH EN 838018 HOLON TH 9417000 HOLOM LH LSNSVH H YOSNIS TWH SH NJAO 1081N03 MO HOASANOD HOLIOYAYO 29 UN S Z NVI NIVW HOllOVdYO 19 YOULNOD VON 28 Y ONNOYS 18 co FE o el GT d CP D LEI Op 17 T 7 I 15 I Core 2 69 ES L 69 89 Impinger Adv Digital Gas Service Manual International SCHEMATIC DIAGRAM MODEL 1433 000 E 1434 000 E 1456 1457 SERIAL NUMBER N31349 AND ABOVE 20064478 FORT WAYNE INDIANA IHPINGER 1 ADVANTAGE Lincoln ET IS OG ONER CONIAQL Sul TCH BURNER BLOMER AIR PRESSURE TERMINAL BLOCK DISTRIBUI ION 16 Waat TYPE K W YAW PILOT V ALME MAIN Sul CH OVEN AIA PRESSURE VALVE VI AEGULAT ION 2 DEE Tv GE J i a CR GAB ENEE T um s Aia HB AR LADES ces O i gent TR ee 699 a ERE 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 Incoming 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 Fuseholder Chec
8. RM 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 1 Shut off power at main breaker 2 Remove two wires for spark generator 3 Unplug connector on bottom of spark generator 4 Remove two mounting screws and remove spark generator 5 Reassemble in reverse order and check system operation 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 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
9. e 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 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 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 Disconnect wires from thermostat and mark for reassembly Remove thermostat from oven Reassemble in reverse order and check system operation gt 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 ALA
10. eating element 208V 369315 Heating element 2200 869122 Heating element 2400 Impinger Adv Digital Gas Service Manual International Impinger Adv Digital Gas Service Manual International HE 23 24 CONVEYOR 1450 SERIES p RA o PART NUMBER DESCRIPTION 369830 Complete conveyor assembly 7 Conveyor belt complete 30 inch wide belt 369163 Conveyor belt complete 32 inch wide mr Conveyor belt 1 foot section 30 inch wide belt 369362 Conveyor belt 1 foot section 32 inch wide belt BL 969855 Retainingrng C 1 369813 Conveyor bearing block D 369314 Roll conveyor notched E 369812 Conveyor idler shaft OF 36960 X Conveyor pan stop 1 Connecting link 30 inch wide belt 369005 Connecting link 32 inch wide belt H 869811 Conveyor drive shaft j 369161 Roller chain K 869800 gt j 370050 pM 369162 C 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 28 Lincoln
11. er conveyor and single burner operation FUSE HOLDER REPLACEMENT a 9s 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 REPLACEMENT SUS EON ROER Remove conveyor from oven and place on flat work surface Remove connecting links from conveyor belt See Installation and operations manual Remove 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 ADVANTAGE SERIES B 369110 Access window assembly 96099299 Retainer new style D 9 3988 JjHandespaer E 369209 Jlath amp stke m Qm Lp G 436938 Bottom access window o o lt H 29869934 4 JJAcessdorglass J 969030 Top access window bk J 95068 X LL X 369811 JHandespaer 2req GE TIA Compression spring AA Stud wing head DD 369873 Receptacle snap i 1 O see installation operations manual 00 3926 Window frame bottom PP 39925 Glass acce
12. es 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 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 na
13. et 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 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 Heplace 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 n
14. et fan assembly on the motor shaft NOTE A Torque specs on bolts 150 in Ib 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 TO FAN SPIDER FAN HUB 1 1 2 INCH CONE 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 ho
15. for adequate gas supply and be sure that the Below manual gas shut off valve is open Also check flexible gas line connection Air pressure switch Check air switch terminals for supply voltage to side only check for air tube blockage or misalignment If 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 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 pressu
16. gnition 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 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 5 manual gas shut off valve 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 8 and neutral If no voltage is present wait 30 seconds res
17. 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 mounting 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 Shut off power at oven switch 2 Set conveyor reversing switch in the other position 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 REPLAGEMENT 1 Shut off power at main breaker
18. k 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 supply Check circuit breaker reset if required Check power mm plug to be sure it is firmly in receptacle Measure incoming power call power co if required 1 Fuse 10 Amp Check replace if necessary a Switch oven power Check for line voltage supplied to switch If no voltage is present trace wiring back to fuse holder Check needed 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 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 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 S N N31348 and Gas supply Check
19. n 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 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 nu 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 freq
20. ndary 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 CHEMIN IUIM CX 35155399 13 NI SVO HOLIMS ZS UIMOISNVEL THX NJAO HOLIAS IS NOLLVINOIN 2909 3AJVA ZA HOASANOD HOLOM bil 10714 3 NIVH JAWA TA NV NIVN HOLOM EM 21 HANNE HOLON 11 8141510 42018 TYNIWYIL E81 O9NI 100 HOLOW IH 3 000 rE EEr I JOHLNOO HININ 32038 NINH 13NOVH VNVIONI 3NAVM 1803 LIMI ROIN EES Et AW 9N11003 XO JOHINO02 IV1SORSEHI 21 AINO GN3AO 39 138 831714 114 Set eTompond sopa See poo 11917 HOI TOWINOD IVISORH3HI D YOL N3A0 ISNA 301Y83N39 WvdS 95 NJAO 3031409 NOD VI QUOC ONISHIAIU YOASANOD HOLIMS 95 MOA3ANOO NOLIOYQVO 29 sunss3Md MV W3MO18 HANNE HILIMG SE S 2 WOLIOYdVO 12 O 13534 u3Nun8 H91IMS FS 709109 YINYNG 28 3Uun5S3Hd HIY NJAO HILIMS ES Y e EE O el
21. o 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 La pressure replace gas valve Pilot tube 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 stay on 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 13 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 connections 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
22. ower 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 the oven power switch supplies line voltage to the conveyor motor and to the primary of the control transformer Seco
23. re 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 regulation 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 for line voltage supplied to switch If no voltage is present trace wiring back to fuse holder Check continuity betwee
24. re 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 supply voltage to burner blower motor at terminal 6 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 rese
25. ss window QQ 3697 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 B 3703855 Oven Control D 1 370854 Lach Label Gas Valve Multi Block S N N31348 amp Below 370433 Gas Valve S N N31349 amp Above 1 287018868 Solenoid Valve 969009 X Main Orifice LP 3870114 Main Orifice Town Gas O0 236042 _ FlameTarget O P 370362 _ JjThemocople TypeK Q 1 2A 398 3 Blower Motor R A 9690859 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 ADVANTAGE SERIES GAS AND ELECTRIC 370140 motor electricovens 4 B 1 869214 Motor main fan 50 Hz 4 C 9 9903 Motorclamp 4 D 4369205 Motor support assembly E 9 990992 Capacitor 7 5MFD F 9 369306 Oven back assembly gas oven G 49369646 9 JStadof H 989647 Jlltpael JJ 369218 Manian K 3695847 Bracket thermostat M 369287 X H
26. t 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 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 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 I
27. 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 the oven control and measure the resistance of the thermocouple The thermocouple should read approx 11Q 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 Ovencontrol 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 temperatu
28. tural 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 REPLACEMENT 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 5 Disconnect wires from temperatur
29. uency 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 control Impinger Adv Digital Gas Service Manual International 11 REMOVAL INSTALLATION amp ADJUSTMENTS 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 S
30. using 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 PERIODIC 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 wir

service manual (international)

Contents

Download Pdf Manuals

Related Search

Related Contents