Lincoln 1421-000-E Convection Oven User Manual
Contents
1. SHIGHAN 3HIM XX TOHLNOD HINYOJSNYYL LUX 3 31dn020HH3HLl IL NOIL1n8IHISIO 32018 TYNIHYIL 281 AlddNS 32018 181 1 HOTH NJAO 1VI1SOHH3HL EL 9 1002 1V1SOHH3HLl 71 JOHINOO 1V150H83Hl 11 SNISH3A3H HOASANOD HOLIMS 25 39VINVAOYV I W39NIdHI VNYIONI 3NAVM 1903 VEO PTT H3MOd MINN HOLIMS LS dE 1 YOLOVINOD ZH dE LIMIT H9IH YOLOVINOD 19 QNIMIM LN3W313 9NIIV3H Joss3Uddns 3510 SN YOASANOD HOLOH EW NYJ 9 170009 HOLOH CN NJAO 80108 IM 13N9VM H HOSNIS 123443 TIVH SH M OOSt HILVIH H VOL 510 1 02 3 HOLOW 35nd Fd vos ualvaH ISNA 3 1 IWS 9311134 17133 NJAO TOH1NO2 NOD HOLOH HOASANOD HOLIDVdVI 22 S Z NIYW 0112 4 2 12 HILIMS 35055399 HIV D D Di 2n in alle Impinger Adv Digital Electric Service Manual International SCHEMATIC DIAGRAM MODEL 1454 1455 SERIAL NUMBER N28654 AND ABOVE 886E9082 39VINYAQY 1 H39NIdHI YNYIONI SNAWM 1403 OM SJPRPOLJ eot e poo WIRD TI LIHIT H9IH N3A0 1VISOHH3HL NYJ 9NI 1002 1VISOHWH3HL LIMI1 H91H TOYLNOD LVYLSOHYIHL SNISH3A3H YOASANOD HOLIMS H3MOd NIVW HOLIMS dE YSIVSH HOLOVINO2 055394905 3510 IN3H313 ONILV3H SYSEHNN SHIM XX JOHINO2 H3HHOJSNYHI HX2. Linco Lincoln Foodservice Products LLC 1111 North Hadley Road Fort Wayne Indiana 46804 United States of America Telephone 260 459 8200 U S Facsimile 888 790 8193 Int l Facsimile 260 436 0735 Technical Service Hotline 800 678 951 1 www lincolnfp com Encdis CERTIFIED SERVICE AND PARTS
3. 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 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 k MADE FROM 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
4. Receptacle snap in Ek 36908 Fingerhousng M see installation operations manual 369926 Window frame bottom LB s 369925 369927 Window frame top Impinger Adv Digital Electric Service Manual International 16 CONTROL BOX 1421 000 E 1454 1455 2 B 19072 Conveyor motor HL 53905 ir pressure switch QG 1 370163 Terminal block 5 Pole HH 23084 Filter EME 370485 Contactor mercury j 3698388 Thermostat control box hi limit bk 357107 Fuseholder 1 36909831 X JFingrgurd 0 1 3059 Reversing switch P 369368 Thermostat oven cavity hi limit Q 37088 Cover access BR 937860 Capacitor Conveyormotor T d 969125 Terminalblock2poe U 369427 X Transformer control V 9786 Thermocouple type K W 370363 Frontcoverassemby X 97854 9X JFacalabl Y 3942 Switch on off Z 4J1 970855 jOvencotrbl G A Z vM gt Impinger Adv Digital Electric Service Manual International CONTROL PANEL Impinger I Aav Electric Service Manual International MODEL 1421 ONLY e 3 E uo x o o 17 18 OVEN BACK ADVANTAGE SERIES GAS AND ELECTRIC 3983 Cover motor gas ovens 370140 Cover motor electric ovens gt B 369214 Motor
5. can cause intermittent failure Conveyor will not run Incoming power supply Check circuit breaker reset if required Check power Impinger Adv Digital Electric Service Manual International uper incoming power call power co if required Fuse10Amp Check replace if Fusehoderr 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 Control transformer 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 Conveyor motor Check for supply voltage to the conveyor motor at terminal 8 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 Capacitor conveyor motor Check for shorts or grounds Replace capacitor as needed WARNING Capacitor has a stored charge discharge before testing Switch conveyor reversing Check continuity between switch terminals Replace switch as needed Oven control If there is voltage suppl
6. 3 3dAL 3740020WH3Hl 21 NOILnBIMISIG 32018 TYNIWYIL 291 Aldd s 32018 EL 11 cS LS LH SN YOASANOD HOLOM EW 9 171002 HOLOW ZH NJAO YOLOW IH L3INSYH H HOSNIS 193433 TIVH SH M OOSt HYILVIH H VOL 51081802 3 HOLOW 35035 VOS HILVIH 3snd E4 134 NJAO 1081802 NOD HOLOH HOASANOD HOLIOVdVO 29 Oh S 2 NIVH YHOLIDVdVD 12 HOLIMS 38055384 HIV P FF CP H ar TF 4 ER SCH HOLLYHNS 1340 15 EE dt d k em Ca Tig idc Ar e fils IPED D Bu EE ve IMMER TROUBLESHOOTING GUIDE Impinger Adv Digital Electric Service Manual International IMPINGER ADVANTAGE ELECTRIC OVENS SERIAL NUMBER N28654 AND ABOVE OVENS WITH PUSH BUTTON CONTROLS SYMPTOM POSSIBLE CAUSE EVALUATION 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 necessary Fusehoderr Check replace if necessary Thermostat control Terminals are normally closed open at 130 F 55 C If box hi limit open reset and test for proper operation If thermostat will not hold and control box temperature is not exceeding 130 F 55 C
7. mainfan 50Hz O 96083 Motorclamp 9 J D 4 369215 Motor support assembly BE 369192 JQCapaitn75MFD F 369906 Oven back assembly gas oven 1 1 mf 369647 deng K 369547 Bracket thermostat M 369287 Heating element 208V 3915 Heating element 220V 969122 Heating element 240V Impinger Adv Digital Electric Service Manual International Impinger Adv Digital Electric Service Manual International 20 CONVEYOR 1450 SERIES 369830 Complete conveyorassembly 25922 Conveyor belt 30 Wide 370092 Conveyor belt 1 ft section 30 Wide Conveyor Belt 32 Wide units mfg after 10 2003 Conveyor Belt 1 ft section 32 Wide 09202 units mfg after 10 2003 Connecting link 30 inch wide belt Connecting link 32 inch wide belt H 3981 Conveyor drive shaft 2 dl 369161 Roller chain sprocket 370050 Conveyor frame 239602 Drivechain O I es lt Impinger Adv Digital Electric Service Manual International Impinger Adv Digital Electric Service Manual International 21 22 This page intentionally left blank Impinger Adv Digital Electric Service Manual International This page intentionally left blank Impinger Adv Digital Electric Service Manual International 23
8. 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 THERMOCOUPLE MEASURMENT TEMPERATURE D C MILLVOLTS APPROX 200 2 8 250 4 0 300 5 1 350 6 0 400 7 1 450 8 2 900 9 3 950 10 4 600 11 5 10 Impinger Adv Digital Electric Service Manual International 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
9. SERVICE MANUAL INTERNATIONAL IMPINGER CONVEYOR OVENS MODEL 1421 000 E 1454 1455 WITH PUSH BUTTON CONTROLS gt 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 Enodis CERTIFIED SERVICE AND PARTS 1450ExpElect REV 1 30 08 SEQUENCE OF OPERATION IMPINGER ADVANTAGE SERIAL NUMBER N28654 AND ABOVE OVENS WITH PUSH BUTTON CONTROLS MODEL 1421 000 E 230 400 VAC 50 HZ 3 PHASE POWER SUPPLY Electrical power is to be supplied to the oven by a five conductor service Brown conductor is hot Black conductor is hot Black 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 37 C 1 7 C MAIN FAN CIRCUIT Electrical power is permanently supplied through three 50 A fuses to the normally open contacts of the hi limit contactor Power is also supplied through the 10 Amp motor and control fuse through the normally closed control box hi limit thermostat to the normally open oven power switch Pow
10. cooling fan thermostat pre heated check for continuity Control box cooling fan Cooling fan thermostat See Cooling fan thermostat NOTE Thermostat will E ME remain closed if control box temperature remains above 120 F If not operating refer to Oven fan will not run Air pressure switch Check air switch terminals for supply voltage to terminals NO and COM 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 Terminals are normally closed opens at 660 F 350 C 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 Control transformer 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 Impinger Adv Digital Electric Service Manual International Oven cavity hi limit thermostat 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 trac
11. e readings are correct proceed 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 Thermocouple 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 Oven control 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 heat contactor proceed Heat contactor Check for supply voltage to the heat contactor If voltage is present listen for contacts to open and close Also check for opens or shorts in the operating coil Replace heat contactor as needed Intermittent heating Thermal overload of main fan The main fan motor is equipped with internal thermal motor protection and will cease to operate if overheating occurs As the motor overheats and cool this will cause the heating system to cycle on and off intermittently Contactor hi limit Model 1421 000 E only Improper ventilation or lack of preventive maintenance may cause this problem Also most of the problems listed under Oven will not heat
12. e wiring back to hi limit thermostat 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 heat contactor If there is voltage at the heat contactor proceed to Heat contactor If there is no voltage at the heat contactor 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 Check for supply voltage to contactor coil If no voltage is present trace wiring back to oven cavity hi limit thermostat If supply voltage is present at the coil check to see that contacts are closed If there is voltage to the coil and the contacts are not closed replace contactor 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 thes
13. emove 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 HEAT CONTACTOR REPLACEMENT DT Shut off power at main breaker Remove control box cover and front panel Hemove all wiring from contactor and mark for reassembly Hemove mounting screws and remove contactor Reassemble in reverse order and check system operation NOTE be sure that contactor is not mounted upside down as this will cause a constant on condition HI LIMIT CONTACTOR REPLACEMENT See HEAT CONTACTOR REPLACEMENT EMI FILTER REPLACEMENT Se Shut off power at main breaker Remove control box cover and front panel Remove all wiring from filter and mark for reassembly Remove mounting screws and remove filter Reassemble in reverse order and check system operation HEATING ELEMENT REPLACEMENT 12 Sn Ee Shut off power at main breaker Remove back cover Disconnect wiring from heating element and mark wires for reassembly Disconnect motor wiring and mark for reassembly Remove oven back assembly from oven Remove fan shroud Remove heating element from oven back Reassemble in reverse order and check system operation NOTE Be sure heating element connections are ti
14. er is also supplied to the control box cooling fan thermostat 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 HEAT 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 to the oven control TEMPERATURE CONTROL Closing the oven power switch supplies line voltage through the EMI filter to the primary of the control transformer and through the air pressure switch and oven cavity hi limit 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 heat contactor at intermittent intervals to maintain desired temperature The display on the oven control will indicate when the heat contactor 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 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 a
15. front cover 3 Remove four 4 screws from the fan frame 4 Disconnect cord and plug and remove fan 5 Reassemble in reverse order 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 Impinger Adv Digital Electric 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 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
16. ght Impinger Adv Digital Electric Service Manual International THERMOSTAT CONTROL BOX HI LIMIT REPLACEMENT Shut off power at main breaker Remove control box cover and front panel Remove wiring from thermostat and mark for reassembly Remove mounting screws and remove thermostat Reassemble in reverse order and check system operation NOTE Be sure to press reset button on new thermostat to set for operation SYD SINE Impinger Adv Digital Electric Service Manual International 14 GENERAL VIEW ADVANTAGE SERIES 369008 Doorhnge 4 B oo 90110 Access window assembly C 3937 Retainer old style 969920 9 Retainer new style D 96988 Handle spacer E 13909 X JJlach amp stke 4 F 900340 Screw 632x316 4 G 369308 Bottom access window H 369334 Access door glass 4 JJ 969800 access window 935068 Hande 4 b 369311 Handle spacer 2 reg N 4 3906 5 83255 0 370110 Door assembly solid P 9800157 Door assembly with window Q 1534 Finger support assembly R 39057 DQJSuppotbrcketpn S 1 393 Strike assembly 1 296909 V 369140 Compression spring XT 869141 Conveyor hold down bracket 2 1 3959 Shoulder screw 8___o e Z lt E nl Bawa head EE DD 3973
17. ied to the motor and the motor capacitor and reversing switch check good replace the oven control Conveyor motor runs NOTE Display will indicate but there is no speed BELT JAM display Oven control Check for output voltage from oven control to hall effect 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 Conveyor motor 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 control If the hall effect sensor readings are correct but there is no speed indicated on the display replace the oven o 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 Impinger Adv Digital Electric Service Manual International 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
18. nd magnet to prove operation of the conveyor motor If the motor is not running BELT JAN is indicated on the display Impinger Adv Digital Electric Service Manual International SEQUENCE OF OPERATION IMPINGER ADVANTAGE SERIAL NUMBER N28654 AND ABOVE OVENS WITH PUSH BUTTON CONTROLS MODEL 1454 220 380VAC 50 HZ 3 PHASE MODEL 1455 240 415VAC 50 HZ 3 PHASE POWER SUPPLY Electrical power is to be supplied to the oven by a five conductor service Brown conductor is hot Black conductor is hot Black 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 37 1 7 C MAIN FAN CIRCUIT Electrical power is permanently supplied through three 50 A fuses to the normally open contacts of the heat relay Power is also supplied through the 10 Amp motor and control fuse through the normally closed control box hi limit thermostat to the normally open oven power switch Power is also supplied to the control box cooling fan thermostat 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 contr
19. ol transformer HEAT 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 to the oven control TEMPERATURE CONTROL Closing the oven power switch supplies line voltage to the primary of the control transformer and through the air pressure switch and oven cavity hi limit 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 heat contactor at intermittent intervals to maintain desired temperature The display on the oven control will indicate when the heat contactor 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 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 Electric Service Manual International SCHEMATIC DIAGRAM MODEL 1421 000 E SERIAL NUMBER N28654 AND ABOVE
20. replace thermostat 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 plug to be sure it is firmly in receptacle Measure incoming power call power co if required Fuse 10 Amp Check replace if necessary Fuse holder 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 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 LE o automatic control power supply Check circuit breaker reset if required Check power box LE o to be sure it is firmly in receptacle Measure incoming power call power co if required OE Check cooling fan thermostat thermostat closes at 120 F and opens at 100 F With
21. ssembly 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 Impinger Adv Digital Electric Service Manual International 11 Moor 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 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 Se no 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 sat m Remove conveyor from oven and place on flat work surface R
22. 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 Shut off power at main breaker Remove control box cover and front panel Disconnect wires from reversing switch and mark for reassembly Remove mounting nut and remove reversing switch Reassemble in reverse order and check system operation RON 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 ON OFF SWITCH REPLACEMENT Shut off power at main breaker Remove control box cover Remove access cover Depress spring clips on side of switch and push out Remove wires from back of switch note wire number and location Reassemble in reverse order and check system operation NOTE Make sure switch housing is fully seated in control box housing Oo ae ES OVEN CONTROL REPLACEMENT Shut off power at main breaker Remove control box cover and front panel Remove all wiring connections and mark for rea
Download Pdf Manuals
Related Search