Lincoln IMPINGER CONVEYOR OVENS 1600 User's Manual
Contents
1. F 96990 JjScrewi032Xl4d O Q 23891 Thumb Screw JIL 2397053 Drive Cover K 370252 JjDrvCovrLH gt L 2996074 Hinge Assy Rig gt o 1 3 2 O M 369723 Door Assy Smal 0 0 O 369717 Finger Retaining Bracket P 369057 ___ Screw Finger Retaining Bracket Q 936951 atc SS O R 369238 keg A O 969390 Caster Low Stand O O 970663 Baffle Air Return U L S N 35951 and above 970662 Baffle Air Return U R S N 35951 andabove Oolumnating Plates See Installation Operations Manual _ Units from S N 35951 and above DO NOT contain lower Air Return Baffles These units only contain a total of two 2 Air Return Baffles which are placed above the top finger assemblies These parts have minor design changes not shown in the exploded view drawing on page 19 18 Low Profile 1600 000 A Advantage Series Service Manual Domestic BLOW UP GENERAL 1600 000 A ADVANTAGE SERIES _ LC T LC CT We ug an al CO im c Bel m HI VK m Low Profile 1600 000 A Advantage Series Service Manual Domestic PARTS CONTROL BOX RIGHT 1600 000 A 1601 000 A LETTER PART DESCRIPTION B 29975 Thermocouple 870279 Main Orifice LP2. O 24 Low Profile 1600 000 A Advantage Series Service Manual Domestic BLOW UP OVEN BACK 1600 000 A SERIES Low Profile 1600 000 A Advantage Series Service Manual Domestic 25 PARTS CONVEYOR 1600 000 A SERIES LETTER PART DESCRIPTION 369830 Complete Conveyor o o y 370092 Belt 1 Foot Section 4 O B 29685 RetainingRing gt Z gt 9 J3 O C 369818 Conveyor Bearing Block 1 1 1 1 D 369814 Roll Conveyor Notched E 4309812 Conveyor Idler Shaft Z F 90905 QConvyoPanStp 2 Q 299814 Connecting Link gt J J O H 296980011 Conveyor Drive Shaft gt Z J 3061 Roller Chain Sprocket K 299806 Crumb Pan L 237050 Conveyor Frame M 369162 DriveChain gt 0 0 0 0 O INI IIO mnm z 26 Low Profile 1600 000 A Advantage Series Service Manual Domestic BLOW UP CONVEYOR 1600 000 A SERIES Low Profile 1600 000 A Advantage Series Service Manual Domestic 28 A Lincoln A X SERVICE AND PARTS Low Profile 1600 000 A Advantage Series Service Manual Domestic
3. CONVEYOR 1600 000 A SERIES EE 26 BLOW UP 7 CONVEYOR 1600 000 A S25 c itae dn en ceat eu coc ote eta seor Inesvent ute oes etest ebbe ure a ian 2 2 Low Profile 1600 000 A Advantage Series Service Manual Domestic POWER SUPPLY CONTROL BOX AUTO COOL DOWN MAIN FAN CIRCUIT BURNER CIRCUIT TEMPERATURE CONTROL CONVEYOR DRIVE NOTE TEMPERATURE DISPLAY SEQUENCE OF OPERATIONS 1600 000 A 1601 000 A MODEL 1600 000 A 120 VAC 60 HZ NATURAL GAS MODEL 1601 000 A 120 VAC 60 HZ L P GAS Electrical power to be supplied to the oven by a three conductor cordset Voltage from the black conductor to the white conductor to be 120 VAC White conductor is Neutral Green conductor is Ground When the temperature in either one of the Control Boxes reaches 120 F 3 F 49 C 1 7 C the Cooling Fan Thermostats will switch power to the Cooling Fans The thermostats will interrupt power to the Cooling Fans when the temperature falls to 100 F 3 F 37 C 1 7 120 VAC is permanenily supplied to the normally open double pole power switch a normally open contact of the oven power relay and the normally open cooling fan thermostats Closing the power switch supplies 120 VAC through the 3 A cooling fan fuse through both control box hi limit thermostats to the coil of the oven power relay These normally open contacts now close supplying 120 VAC through the 10A main fan fuse to the 2 main fan motors and the 2 bu
4. If no voltage is present replace the ignition control Hot Surface Igniter If 120 VAC is present at HSI terminals visually check to see Located inside Burner that the hot surface igniter is heating igniter may be viewed Assy through port glass in end of burner tube The igniter should glow bright red Check all connections to be sure they are tight If the igniter does not heat replace Ignition Control After 45 seconds of hot surface igniter pre heat the ignition control will switch 24 VAC to the gas control valves Check for 24 VAC output from the ignition control and across terminals marked valve and valve gnd If no voltage is present replace the ignition control NOTE The ignition control contains a safety lockout circuit If a flame is not detected within 6 seconds after the gas control valve is energized the ignition control will lockout To reset turn the power switch off wait 45 seconds and switch the system on to retry ignition Gas Control Valves Check for 24 VAC supplied to the gas control valves If voltage is present the valves should open Check for gas pressure at the pressure tap located in the gas piping just prior to the burner If there is no gas pressure and the voltage is supplied to valves check piping for obstructions If there Low Profile 1600 000 A Advantage Series Service Manual Domestic 5 arenoobstructions replace gas control valves Hot Surface Igniter The
5. Fan and Burner Blower Motors then cool this will cause the units to cycle on and off intermittently Improper ventilation or preventive maintenance may cause this Also most of the problems listed under Oven will not heat can cause intermittent failure Conveyor will not run Voltage Supply Check incoming voltage supply at line 1 to neutral There should be a voltage reading of 120 VAC If not present check breakers Speed Adjustment This is a O to 10 K ohm 1 turn potentiometer With power off Potentiometer remove the black and white pot leads from the motor control board at terminals P1 P2 Place the meter leads on the black lead P2 and on the white lead P1 Rotating the pot slowly from low to high the meter readings should show an even transition from 0 to 10 Kohms 5 There should be no dead or open spots through out the 1 turn of the pot Check both leads to ground There should be no continuity to ground If any of the above checks fail replace the pot DC Motor Control Check for 120 VAC input to the control board at terminals L1 Board and L2 If not present check wiring back to the fuse If 120 VAC is present at L1 and L2 check both fuses on control board 8A line and 1A armature check the VDC output at terminals A and A If 120 VAC is present at terminals L1 and L2 and DC voltage is present A and A but motor does not run check gear motor as follows Conveyor Gear Motor If DC voltage is present at A and
6. Low Profile 1600 000 A Advantage Series Service Manual Domestic 11 D Reassemble in reverse order and check system operation CONVEYOR CONTROL BOARD CALIBRATION A Connect digital volt meter to the hall effect sensor Black meter lead connected to black hall effect sensor lead red meter lead to white hall effect sensor lead Turn conveyor control knob fully counter clockwise Loosen knob and align with calibration line and tighten knob Set Knob to 2 minute setting Adjust max pot on conveyor control to 219 Hz Set control knob to 20 minute setting and adjust min pot on conveyor control 21 9 Hz Recheck at 2 minute and 20 minutes until proper readings are achieved Seal pots with glyptol or nail polish CIRCUIT BREAKER IH 3 6 D e Shut off power at main breaker Remove control panel top and front panel Disconnect two 2 wires from circuit breaker Remove knurled mounting nut and push out Reassemble in reverse order NOTE Be sure to reset breaker before operating CONVEYOR DRIVE MOTOR REPLACEMENT LI nmuotumgm Shut off power at main breaker Hemove conveyor Remove control panel top and front cover Disconnect wiring from motor and mark for reassembly Remove sprocket from motor drive shaft Hemove 4 screws and remove conveyor motor and mounting bracket Remove mounting bracket from conveyor motor assembly Reassemble in reverse order REVERSING CONVEYOR DIRECTION Shut off power at mai
7. SHUTTER ADJUSTMENT should be set at 1 2 open HOT SURFACE IGNITER REPLACEMENT SEH Remove appropriate control box cover Disconnect gas line at union Remove four 4 nuts from burner orifice bracket Remove tube for bypass flame Unplug connector at burner housing Remove three 3 screws from burner housing end cap and remove hot surface igniter and burner tube assy Replace igniter assembly and reassemble in reverse order CAUTION USE CARE NOT TO DAMAGE NEW IGNITER NOTE Check all gas line fittings for leaks Make sure connector is seated properly BURNER INDICATOR LIGHT GAS REPLACEMENT A B C D Remove control box cover Hemove two 2 wires from light housing olide light housing sideways to remove Reassemble in reverse order and check system operation CONVEYOR CONTROL POTENTIOMETER 10K OHM REPLACEMENT JUI Oe Remove control box cover Loosen two 2 allen screws and remove knob by sliding off shaft Hemove nut from potentiometer shaft and push out Unplug wire connector from conveyor control board Reassemble in reverse order and check system operation Recalibrate conveyor control board CONVEYOR CONTROL BOARD REPLACEMENT Shut off power at main breaker Remove control panel top and front cover Disconnect wiring push on connectors from control board note proper location of connectors for reinstallation and exchange boards on the mounting bracket before reinstallation
8. Solenoid Valve for next check If 120 VAC is not present proceed Thermocouple Probe WITH POWER ON AND THERMOCOUPLE LEADS ATTACHED TO THE TEMPERATURE CONTROL BOARD Measure the D C millivolt output of these leads Refer to thermocouple chart on page 17 for proper readings If these readings are not achieved replace the thermocouple Temperature Set Disconnect the potentiometer leads Disconnect the pot from Potentiometer the board Place ohm meter test leads on the blue and green pot leads Reading should be 1 K ohms Place meter leads across the blue and purple pot leads and rotate knob from high to low Repeat on green and purple leads Check for even rise and fall of ohms reading to insure that there are no open or dead spots in the potentiometer Check each lead to ground for shorts Replace pot if it does not meet the above test Temperature Solenoid If 120 VAC is present on the temperature control board at load Valve terminal 8 to neutral check for voltage at temperature regulation valve If voltage is present listen for valve to open and close Also check for opens or shorts in the coil Replace as necessary Flame will not stay lit 6 Low Profile 1600 000 A Advantage Series Service Manual Domestic The main fan motors and the burner blower motors are equipped with internal thermal protection and will cease to operate if overheating occurs As the motors overheat and Intermittent Heating Thermal Overload of Main
9. ignition control will keep the gas control valves energized for 6 seconds At the end of 6 seconds the hot surface igniter must sense a flame or the ignition control will go into lockout The ignition control requires a minimum of 0 8 microamps D C To check the flame sensing operation connect a digital multimeter capable of measuring D C micro amps between the ground terminal on ignition control and the ground lead NOTE This is a current measurement and the meter must be connected in series If these readings are not achieved check bypass orifice for obstructions if bypass orifice is clear replace the hot surface igniter NOTE The D C micro amp test must be conducted with the oven in low flame bypass operation Turn the temperature control to its lowest setting Stay lit check for proper polarity of the 120 VAC power supply Ignition Control If there is sufficient micro amp current and the 120 VAC polarity is correct but the flame will not stay lit replace the ignition control NOTE Check for proper ground connection of the ignition control be lit at this time Low flame is on but Temperature Control Check for 120 VAC at terminal 7 to neutral on temperature no main flame control If no voltage trace voltage back to fuse holder Turn the temperature adjustment knob to maximum temperature position and check for 120 VAC at the load terminal 8 and neutral If 120 VAC is present and unit is not heating refer to Temperature
10. trace the wiring back to the oven power relay Check for 120 VAC out of the centrifugal switch If voltage is supplied to the centrifugal switch and motor is running but there is no voltage out of the centrifugal switch replace the fan motor NOTE See Schematic Diagram of proper wire numbers on motors VAC is present and motor does not turn replace the motor Burner Transformer Check for 120 VAC to primary of the 24 VAC burner transformer If voltage is not present trace wiring back to the fuse If voltage is present check for 24 VAC at the secondary if no Secondary voltage is present replace the transformer Centrifugal Switch of Check for 24 VAC supply to the centrifugal switch of burner Burner Blower Motor blower motor see Schematic for proper wire numbers If no voltage is present trace wiring back to the transformer If voltage is present check for 24 VAC at the output of the centrifugal switch If there is no output and the burner blower motor is running replace the burner blower motor Ignition Control Check for 24 VAC supply to the ignition control at terminals marked 24V and 24Vgnd If voltage is not present trace wiring back to the centrifugal switch Check for 120VAC supply to the ignition control at terminals L1 and L2 If no voltage is present trace wiring back to fuse If the above checks are okay proceed The ignition control should switch 120VAC to the hot surface igniter across the 2 terminals marked HIS
11. 3H ong ZTT HO 1N91 JO 4UNS 10H ZISH LISH UOSN3S 123343 TWH SH YOSNSS IWY 5j vol uaNung 3snd PIEJ Se a l Ph SEN YE SH010H NYJ 9NI 1009 3503 Z4 YOL SHO10W NYJ NIYW 35n3 14 041NO2 dW31 21NQU12313 2913719139 YOLOW SH HO2LIMS TWONATYLNII KSI uOLOW AN HOLIMS 1v9ndluiN32 E52 YOLOW EW HOLIMS 1v9nJIu1N32 c52 UO1OM LW HOLIMS 1V9n3IMIN32 152 XOL LOd 0H1NOO HOA3ANCO dd 1081NO2 HOA3ANO2 22 vo u3uv3uB 1102uI9 82 I q1041N03 u3Nung 298719 5 i th 8 14 E 1N ba Ec z o ev AOC I Low Profile 1600 000 A Advantage Series Service Manual Domestic 10 REMOVAL INSTALLATION amp ADJUSTMENTS MODEL SERIES 1600 ADVANTAGE CAUTION BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE IMPINGER OVEN BE SURE TO DISCONNECT ELECTRICAL POWER AND GAS SUPPLY BURNER CONTROL HONEYWELL REPLACEMENT A B C D Remove appropriate control box cover Hemove wires from control note wire number and location for re assembly Remove four 4 screws from control and replace Reassemble in reverse order and check system operation BURNER BLOWER MOTOR REPLACEMENT I UO OU gt Remove appropriate control box cover Unplug motor connector Remove three 3 screws from blower tube at burner housing Remove air shutter assy from old motor for installation on new motor assy Reassemble in reverse order and check system operation NOTE CHECK AIR
12. A and the motor does not run first check the mini breaker and then the conveyor Refer to the next possible cause Check the leads to the motor for evidence of any shorts or opens and each lead to ground Check motor brushes From the top of the motor rotate motor shaft to determine if there is a locked rotor or a locked gear box use care so magnet and H S board are not damaged Replace motor as needed Conveyor Check for any mechanical misalignment Also check for worn bearings A conveyor belt that is over tightened will cause excessive bearing wear and sometimes irregular speed Low Profile 1600 000 A Advantage Series Service Manual Domestic 7 varying or intermittent at board terminals L1 and L2 Motor Control Board Place the test meter probes on terminals A and A With speed potentiometer set to maximum speed Approximately 2 min The meter reading should be approximately 100 VDC 3 if voltage is not steady within limits then the board is probably bad Always check the speed pot be sure it is okay before changing a board This test is not always 100 accurate as this test is not performed at operating speeds However this test is the best method currently available DC Gearmotor If the DC control board is steady then the problem may be the motor or gearbox Check the brushes in the motor for excessive arching and or unusual wear Check the motor and gearbox from instruction located under possible cau
13. D 369898 Solenoid Valve gt Z o 3J y O 80904 Venturi Pe ll 369263 jGasVave 0 0 O 970070 JBypassOrficeLP K 369173 Transformer Temp Dispay Lb 2395082 X JGrudlug gt J 3 3 O M 369537 jPowrCod gt 0 0 0 O N 996124 LGooimg Can amp O O 23909530 Transformer Burner P 293654 Circuit Breaker 7A gt Z O Q 9 939092 Capacitor 9 O H 29712 jFueHoder 80904 Fuse 0A T 2339507 JjThemosta Cooling Fan gt Z y U 360931 Thermostat ConrolBoxHiLimt o V 869808 9 Conveyor Control W J 989965 JjTemperaueConto 0 0 y O X 29069532 Ignition Contrl 1 1 Y 29369856 9 JQSuporStad Off 1 0 1 DD 2936982 X Magne8Poe Z o Temperature Display Dual 1n 37056 Side Panel RH Pilot Light 125V ZI zZIIIA elle OO 869816 X jKnb 9 O PP 370248 Label Oven Operation o QQ 35024 Lens Yellow gt 0 0 20 Low Profile 1600 000 A Advantage Series Service Manual Domestic BLOW UP CONTROL BOX RIGHT 1600 000 A 1601 000 A Lo
14. ENT I ECOL m Remove appropriate control box cover Remove two 2 wires on primary side note color and location Hemove two 2 wires on secondary side at burner control Honeywell Remove two 2 screws from transformer base and replace assembly Reinstall in reverse order and check system operation CAPACITOR MAIN FAN MOTOR 7 5 MFD 370V REPLACEMENT Go Remove appropriate control box cover Remove two 2 wires from capacitor note wire number and location WARNING Capacitor has a stored charge discharge before handling or testing Cut two 2 tyraps securing capacitor to base and replace Reinstall in reverse order and check system operation Low Profile 1600 000 A Advantage Series Service Manual Domestic RELAY REPLACEMENT Remove control box cover Remove wires from relay note wire numbers and location for reinstallation Remove two 2 screws from relay base and replace relay Reassemble in reverse order making sure wire connectors are properly seated Check system operation 62 Co 9 T THERMOSTAT COOLING FAN REPLACEMENT A Remove appropriate control box cover B Remove two 2 wires from thermostat note wire number and location C Remove two 2 mounting screws and replace thermostat D Reassemble in reverse order and check system operation ELECTRONIC TEMPERATURE CONTROL REPLACEMENT A Remove control box cover and front panel B Identify correct control and remove wires from co
15. SERVICE MANUAL DOMESTIC IMPINGER CONVEYOR OVENS LOW PROFILE 1600 SERIES ADVANTAGE 2 AN 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 9511 www lincolnfp com j C SIAR CERTIFIED SERVICE AND PARTS 1600advsvc REV 1 8 07 TABLE OF CONTENTS TABLE OF CONTENTS EE 2 SEQUENCE OF OPERATIONS 1600 000 A 1G0T1 000 A eee cette eee etter eee a eee aaa e eee eeaaaaaee nese nnn nnns 3 TROUBLESHOOTING EE 4 SCHEMATIC 1600 000 A TOO T ODOSA eebe eebe eebe Gasman teenie yaaa meant SE 10 REMOVAL INSTALLATION amp ADJUSTMENTS erintene e eee ana aa naa e ee eee aaa nnn Na e a a aa aia aaa aN 11 PARTS GENERAL 1600 000 A ADVANTAGE GERIE REENEN 18 BLOW UP GENERAL 1600 000 A ADVANTAGE SERIES sese 19 PARTS CONTROL BOX RIGHT 1600 000 A 1601 000 A eee 20 BLOW UP CONTROL BOX RIGHT 1600 000 A 1601 000 A sseeeenennneeennnne 21 PARTS7 CONTROL BOX LEF T 1600 000 A 160 1 000 22 0 2 engen EENS oou eo cta ct aue cease 22 BLOW UP CONTROL BOX LEFT 1600 000 A 1601 000 A eeeeeeeeeeeneeeeeeeeeenn nmm 23 PARTS OVEN BACK 1690 000 A SERIEBS testet eroe Ped POE DEENEN 24 BLOW UP OVEN BACK 1600 000 A SERIES AANEREN 25 PARTS
16. amber NOTE R H Thermocouple viewed from front is connected directly to the temperature control board remove two 2 wires make note of wire colors terminal 6 is White and terminal 7 is Red and location for reinstallation When changing L H Thermocouple viewed from front the back motor cover must also be removed to gain access to the thermocouple connector plug Reassemble in reverse order making sure bulb is placed securely in the wire form in the oven chamber Check system operation recalibrate as needed NOTE The R H and L H Thermocouples have different connectors on the wire ends and must be ordered accordingly INFORMATION When two wires composed of dissimilar metals are joined together and one of the ends Is heated a continuous current flow is generated We use an iron constant Type J thermocouple The iron wire increases the number of dissimilar junctions in the circuit 16 Low Profile 1600 000 A Advantage Series Service Manual Domestic It is possible to check a thermocouple with a properly calibrated D C millivolt meter At 32 F the millivolt reading should be 0 00 This can be checked by inserting the thermocouple into an ice bath When using the following chart the temperature at the terminal connections must be noted This temperature is called the Junction Temperature The following chart lists the thermocouple millivolt readings from 200 F to 600 F The millivolt reading at 72 F
17. e motor cover POSSIBLE CAUSE EVALUATION Incoming Power Check breakers reset if required Check power plug to be sure SYMPTOM Oven fan will not run Supply it is firmly in receptacle Measure the incoming power call power company if needed Hi Limit Thermostat s Check for voltage on both sides of the switch Terminals are Control Box normally closed If open reset and test oven for proper operation If thermostat will not hold and control box temperature is not exceeding 140 F 60 C replace thermostat Oven Power Relay Check for 120 VAC to the relay coil If voltage is not present trace wiring back to the control box hi limit If voltage is present check to insure contacts are closing Check for 120 VAC supplied to terminal 2 of the relay Check for opens shorts or grounds WITH POWER OFF turn fan blade to check for locked rotor Capacitor Check for shorts or grounds D WARNING Capacitor has a stored charge discharge before testing No control box cooling Incoming Power Check main circuit breakers reset if required call power company if needed Main Fan Switch Check continuity between switch terminals Check replace if necessary Fuse Holder Check replace if necessary Check for voltage on both sides of the switch Terminals are normally closed If open reset and test oven for proper Hi Limit Thermostat s Control Box operation If thermostat will not hold and control box temperature is not exce
18. eding 140 F 60 C replace thermostat Cooling Fan s 120 VAC should now be at the fan motor If voltage is present d check motors for shorts or opens WITH POWER OFF Check for locked rotor box cooling oupply company if needed Cooling Fan Check the cooling fan thermostat Thermostat closes at Thermostat s 120 F and opens at 100 F With the cooling fan thermostat preheated check for continuity If switch is open replace Check replace if necessary Fuse Holder Check replace if necessary Hi Limit Thermostat s Check for voltage on both sides of the switch Terminals are Control Box normally closed If open reset and test oven for proper operation If thermostat will not hold and control box temperature is not exceeding 140 F 60 C replace thermostat 4 Low Profile 1600 000 A Advantage Series Service Manual Domestic Cooling Fan s 120 VAC should be at the motor If voltage is present check motor for shorts opens or grounds WITH POWER OFF check for locked rotor Oven will not heat Gas Supply Check for adequate gas supply and closed manual gas valves Also check flexible gas line connection If not operating refer to Oven fan will not run NOTE These ovens utilize 2 complete burner temperature control systems Each system will follow the same troubleshooting sequence Centrifugal Switch of Main Fan Motor Check for 120 VAC supplied to the centrifugal switch if voltage is not present
19. emperature control board Be sure to maintain proper polarity of thermocouple leads see Adjustment Section for proper procedure The pyrometer will indicate oven temperature Measure DC millivolts of thermocouple at the temperature display See thermocouple chart in adjustment section for proper readings Replace thermocouple if proper readings are not achieved If readings are correct on the thermocouple replace temperature display SCHEMATIC 1600 000 A 1601 000 A 3008c08Cc 39VINVAOV 3114044 MOT YONI dW gt VNVIONI MANN 10d Sooo 996 Du sprparg SopA1sSspoo 9 leeileeel eee TOIU amp leases bes e d S4 1SH eu EW TWH aa SNOIL YND ANOD YOLIFNNOD NI MO AAMIIN 201 LHOTY S AN i 6n tav AN ON 20 WOdd Q3M3l A JAIS IH9IY NO11 vun T JNo2 tS cavau Wiua T1N3 jd NUNJ U 1A 2016 i t313 ED SYJAWNN 3ulM TOUINOD H3NHhB u3WHOd5NVHI EAX ZO A 1dS1C dW31 H3HHOJSNYVHI 13X NOULYIND3Y 3d lvu3dW31 3ATVA BATER A13dvs WNO h ZALA AW1dSIQ dH31 i ABW3SSV 10d 3ufliYH3dW31 2dl idi f 3dAi 31qn020Wu3Hi 221 191 4 tot JIWIT 1H X08 LNI 1iV1SORM3H1 HUEL NYJ 9NI1002 1YV1SOWH3Hl Ci 11 ON 290 MOT Q3M3IA 365 331 u3MO0d H211IMS u3MOd NJAO An l 1H91H Ol 1437 H0123NNO2 U3MOd Jd YOASANOD uOlOW PN YSMOTE u3NunB uOlOW SH EN NY4 9NI7002 uO10H BW BW IW CH NYJ MIN H0104 ZH l4 L3NOVM M UO1VOIQNI u31Y
20. ent intervals to maintain desired temperature The heat lamp is energized with the solenoid valve Closing the on off switch supplies 120 VAC through the oven power relay to the motor control board AC volts are converted to DC volts and are supplied to the conveyor motor at terminals A and A Adjustments of the speed control potentiometer will change resistance at terminals P1 and P2 varying the DC voltage to the motor The speed of the conveyor motor will increase or decrease as the DC voltage from the board increases or decreases respectively The conveyor control uses a sensor and magnet mounted on the conveyor motor that senses the motor speed Any change in motor load RPM is detected by the sensor and the voltage to the motor is adjusted accordingly Closing the switch supplies 120 VAC to the primary of the temperature display transformer The secondary of this transformer supplies 12 VAC to the temperature display The thermocouple supplies D C millivolts to the temperature display The display converts this millivolt reading to a temperature reading Low Profile 1600 000 A Advantage Series Service Manual Domestic TROUBLESHOOTING GUIDE GAS OVENS MODEL 1600 000 A NATURAL GAS 120 VAC 60 HZ 1 PHASE MODEL 1601 000 A L P GAS 120 VAC 60 HZ 1 PHASE NOTE When checking components on left side of unit be sure to check for proper connections in power connector marked P C on Schematic Diagram located insid
21. n breaker Remove control panel top Reverse wires fastened to terminals A and A on conveyor control board See schematic diagram for wire numbers Reassemble in reverse order HALL EFFECT SENSOR REPLACEMENT Q nImootug Shut off power at main breaker Remove control panel top and front cover Hemove conveyor motor assembly Remove wire connector from hall effect sensor board Hemove two 2 screws from conveyor drive motor Remove sensor board from mounting bracket Reassemble in reverse order FUSEHOLDER REPLACEMENT OOWS Remove appropriate control box cover Remove two 2 wires note wire number and location Remove mounting nut on back side of fuse holder and push out Reinstall in reverse order and check system operation Low Profile 1600 000 A Advantage Series Service Manual Domestic GAS VALVE DUAL SAFETY REPLACEMENT I OMNMOOW gt S Remove appropriate control box cover Remove incoming gas line Remove screws from incoming nipple mounting bracket Remove incoming nipple Remove bypass tube assy Disconnect pipe union Disconnect wiring from control valve four 4 push on connectors make note of wire numbers and location for reinstallation Remove gas piping from old valve and install on new one Reassemble in reverse order and check system operation Set manifold pressure on gas valve Pressure should be 3 5 in W C Nat 10 in W C L P NOTE Check all gas line fittings for leak
22. ntrol Note wire number and location for reinstallation C Remove temperature control from mounting tabs D Reassemble in reverse order and check system operation TEMPERATURE SETTING FOR NEW TEMPERATURE CONTROL BOARD digital thermometer adjust pot thermocouple PROCEDURE FOR SETTING MAXIMUM TEMPERATURE POTENTIOMETER P6 NOTE When replacing temp control turn oven temperature control to its maximum heat position and allow 30 minute preheat before calibrating Connect temperature probe to the oven thermocouple leads at the temperature control board and adjust potentiometer to a maximum temperature of 600 F 315 C See Diagram Above HIGH LIMIT THERMOSTAT REPLACEMENT A Remove appropriate control box cover B Remove two 2 wires from thermostat note wire numbers and location for reinstallation C Remove screws from bracket and remove thermostat D Reassemble in reverse order and check system operation NOTE Depress reset button to insure thermostat is set for operation Low Profile 1600 000 A Advantage Series Service Manual Domestic 15 COOLING FAN MOTOR REPLACEMENT A B C D Remove appropriate control box cover Remove mounting screws Unplug electrical connector and remove fan motor assembly Reassemble in reverse order and check system operation MAIN FAN MOTOR REPLACEMENT A Shut off gas supply and remove gas line and manifold lines from back of oven B Remove screws from m
23. otor cover housing and lift off NOTE When ovens are stacked all motor cover housings are fastened together C Unplug power connector D Unplug thermocouple E Unplug two 2 motor connectors F Remove eight 8 bolts from oven back 4 left 4 right and lift out G Remove one 1 screw from fan hub and slide fan blade off of motor shaft Note location of fan blade for reinstallation H Loosen lock nuts on cone Remove two mounting bolts and remove motor from back assy Remove four 4 hex head screws from motor mount bracket Remove motor mount from motor and reinstall on new motor J Reassemble in reverse order NOTE 1 Make sure motor is centered in back housing 2 Verify correct location of fan blade and that it is not hitting fan shroud 3 Make sure all connectors are properly seated and making good contact 4 When reinstalling gas manifold across back of oven check all fittings for leaks K Check system operation allow 30 minute preheat for all checks NOTE Position of the fan on the motor shaft will be 1 875 from the top of the oven back cone to the blade spider assembly on the fan hub See drawing below 1 875 INCH FROM CONE TO FAN SPIDER THERMOCOUPLE TYPE J REPLACEMENT A Remove control box covers Remove motor cover and remove oven back to access thermocouple NOTE Removal of oven back assy is required to replace thermocouples Remove thermocouple from wire form in oven chamber and remove from ch
24. r and check system operation ON OFF SWITCH POWER REPLACEMENT OOWS Remove control box 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 DUAL TEMPERATURE DISPLAY REPLACEMENT mM OO gt Shut off power at main breaker Remove control panel top and front cover Remove all wires from temperature display and mark wires for reassembly Pry temperature display to remove from mounting tabs this is a pressure fit Reassemble in reverse order CALIBRATE TEMPERATURE C See Temperature setting for new temperature control board Set Temp Control to 500 F Allow temperature to stabilize Fine Tune temperature setting to achieve measured temperature swings from 497 F to 503 F When actual temperature falls between 497 F and 503 F the display must show 500 F Adjust temp adj pot on Temp Display to achieve a display reading of 500 F 260 C TRANSFORMER TEMPERATURE DISPLAY REPLACEMENT go mp Remove control box cover and front panel Remove five 5 wires 2 primary side 3 secondary side note color and location of wires for reinstallation Hemove two 2 screws from transformer base and replace assembly Reassemble in reverse order and check system operation BURNER CONTROL TRANSFORMER REPLACEM
25. rner motors Power is also supplied to the cooling fans the heat and conveyor control systems Closing the Oven Power Relay supplies 120 VAC to the 2 burner Systems NOTE This oven utilizes 2 complete Burner Temp Control systems The sequence of operations is the same for each system 120 VAC is supplied through the Centrifugal Switch of the Main Fan Motor this switch closes when the Main Fan reaches approximately 1600 R P M through the 10 Amp Fuse to the Ignition Control the Electronic Temperature Control and the burner transformer As the Burner Blower reaches approximately 1600 R P M its internal centrifugal switch will close supplying 24 VAC to the ignition control The Ignition Control operates on both 24 VAC and 120 VAC When the control is energized by 24 VAC 120 VAC is switched to the Hot Surface Igniter for 45 seconds for Hot Surface Igniter warm up The igniter glows red 24 VAC is switched to the gas valve which opens and ignition should now occur If ignition does not occur in 6 seconds the control will lock out To recycle after lockout turn off the burner switch for 45 seconds and then turn the switch back on When the Centrifugal Switch of the Main Fan Motor closes power is applied to the Temperature Control The1K ohm Temperature Pot is adjusted to desired temperature Thermocouple will provide varying millivolts to the Temperature Controller The Temperature Controller supplies 120 VAC to the solenoid valve at intermitt
26. s check and adjust manifold pressure MANIFOLD ADJUSTMENT SCREW LOCATED UNDER COVER SCREW MANIFOLD PRESSURE ADJUSTMENT CONNECTION PILOT LINE cen CONNECTION MANIFOLD ADJUSTMENT SCREW LOCATED UNDEF COVER SCREW TOP VIEW TEMPERATURE REGULATING VALVE REPLACEMENT Qmmoou r Remove appropriate control box cover Remove bypass tube assy Remove four 4 nuts from burner orifice bracket Disconnect pipe union Disconnect two 2 wires from valve and remove assembly Remove gas piping from old valve and install on new one Reassemble in reverse order and check system operation NOTE Check all gas line fittings for leaks and insure valve gas flow is in proper direction MAIN ORIFICE REPLACEMENT A B C D Remove appropriate control box cover Hemove bypass tube assembly Remove four 4 nuts from burner orifice bracket Disconnect pipe union Low Profile 1600 000 A Advantage Series Service Manual Domestic 13 E F Hemove assembly and replace main orifice Reassemble in reverse order and check system operation NOTE Check all gas line fittings for leaks TEMPERATURE CONTROL POTENTIOMETER REPLACEMENT com E Remove control box cover Loosen screw and slide knob off potentiometer shaft Remove mounting nut and push out Remove three 3 wires from electronic temperature control note wire color and location for reinstallation Reassemble in reverse orde
27. se listing conveyor gear motor Check to insure that the magnet cemented to shaft of conveyor drive motor has not been damaged or come loose from motor shaft Replace as needed Hall Effect Sensor Check for any physical damage to hall effect sensor mounted on conveyor drive motor Check all wiring and connections for damage Check all connections for tightness or proper location Replace as needed Connect new hall effect to system and check for steady operation 8 Low Profile 1600 000 A Advantage Series Service Manual Domestic Temp display Display Transformer inoperative Temp Display Temp Display Thermocouple inaccurate erratic or inoperative Low Profile 1600 000 A Advantage Series Service Manual Domestic Measure the transformer primary for a nominal 120 VAC input if voltage is not present trace wiring back to the oven power source Measure the secondary output which will normally be 12 15 VAC Voltage across terminals 1 and 3 on the temp display should read 12 15 VAC Terminals 1 2 and 2 3 should be 1 2 the voltage reading to 1 3 If the above secondary readings are not achieved replace transformer If proper voltage is present at terminals 1 2 and 3 on temperature display but the display is not lighted recheck all connections for tightness If temperature display is still not operating replace the temperature display Connect the thermocouple of a pyrometer to the thermocouple on the t
28. should be 1 134 CO 1D LO CO CN N co 0 00 O Mm co LO O CO 00 o eor m co co Mm IF IF H Oloj Il 9 e x eje r Iejej ej o q n o i5 O ODIO O TIT QN ka ka 10 SE SE LO LO CO NIYII SF SE LO LO LO LO LO LO FLO LO LO LO LO LO LO H S kKaikdiis ktaaltz tddks kalkst kachtz kaeilks tdiked Kal ka ce 02 00 sf LHe cO CO O0 O0 O O O 7 Cd co co co cO CO CO CO CO CO CO CO CO CO CO SE SE SF LL ILL ILL ILL ILL ILL ILL LL ILL ILL ILL ILL ILL ILL ILL LL LL O IO O IIO IIO O IIO IIO IO IIO IO o o 10O o IO FO Oe jooj d u sr idc I I OIOIOIOIYINIOIOOIOIY Y INIO OIoololiooiliolioININININININIOIOIOIO CO CONVEYOR REPLACEMENT BEARING B Remove connecting links from conveyor belting See Installation and Operating A Remove conveyor from oven and place on a flat work surface Instructions Manual C Remove conveyor belting from conveyor Remove drive sprocket from drive shaft D Move drive shaft or idle shaft toward end of conveyor and shaft with bearing will now slip out of holding bracket E Replace bearing and reassemble 17 Low Profile 1600 000 A Advantage Series Service Manual Domestic PARTS GENERAL 1600 000 A ADVANTAGE SERIES LETTER PART DESCRIPTION B 9369929 X WindowRetainer D 233699255 Glass Access Window E 2930927 Window Frame Top gt Z
29. w Profile 1600 000 A Advantage Series Service Manual Domestic CONTROL PANEL 21 PARTS CONTROL BOX LEFT 1600 000 A 1601 000 A LETTER PART DESCRIPTION 369706 Thermocouple with Extension 369507 Thermostat Cooling Fan C 369431 Thermostat Control Box Hi Limit 9702070 Bypass Orifice L P K 2Ge963 Xj jGaVave 09 O L 493609356 Burner Blower Motor gt Z 1 1 M JoS3901 Air Shutter Assy O Z o N 2930952 JHotSufaceelgnte O 290975 Venturi Nat 80904 M Venturi Pe P 4309398 Solenoid Valve Nat L P Z 3232Z y Q 369757 Main Orifice Nat 870279 Main Orifice LP R 370272 jSiePaelLH 34 JJ 22 Low Profile 1600 000 A Advantage Series Service Manual Domestic BLOW UP CONTROL BOX LEFT 1600 000 A 1601 000 A Low Profile 1600 000 A Advantage Series Service Manual Domestic 23 PARTS OVEN BACK 1600 000 A SERIES LETTER PART DESCRIPTION B 430724 Fan Clockwise Rotation o y O D 869777 J sStandOf 3 0 O E 936778 JReaWalAssy gt Z O F 369761 jMoorMomn S gt O G 42976 Motor Main Fan 120V 60 Hz 1 1 1 H d627 Duta l 869083 Motor Camp gt
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