Lincoln 1600-000-A Convection Oven User Manual
Contents
1. DS 1 875 INCH FROM CONE TO FAN SPIDER Shut off gas supply and remove gas line and manifold lines from back of oven Remove screws from motor cover housing and lift off NOTE When ovens are stacked all motor cover housings are fastened together Unplug power connector Unplug thermocouple Unplug two 2 motor connectors Remove eight 8 bolts from oven back 4 left 4 right and lift out Remove one 1 screw from fan hub and slide fan blade off of motor shaft Note location of fan blade for reinstallation 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 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 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 THERMOCOUPLE TYPE K REPLACEMENT A NOTE Remove control box covers Remove motor cover and remove oven back to access thermocouple Removal of ove2. el NO11V7n93H 3unlVU3dW3l 3ATYA EA HOSNIS 14 53 VNVIQNI JNAVM 1404 ge A134VS WN 3ATYA ZA LA VOL H3Nu08 ISNA FAE Dd 3 AdAL 31400 0 Z21 191 VE SHOLOW NVJ 9 11003 3504 24 11W17 IH X08 TOMLNOO 19160 1 Pl El VOL SYOLOW NIVH 3604 14 DU SPPA OAS Poo O mee NYJ 9N11000 1V1SOWH3Hl Zl ll 1 SH HILIMS WON4INLNID Fei N TIVYF IAN I 9NISH3A3U HOLIMS ZS HO10M W HOLIMS WONSINLNAD ESO PWEN 54 E 83MO0d HOLIMS 15 1 EM HOLIMS 904181 39 253 15 83MO0d NJAO AVT3U 18 UOLON IW 1 5 TVINJIYLNII 153 0 1 1 19 1 4 03 YOLOSANNOD 1H918 OL 1431 HO103NNO2 H3MOd 2d NJAO 10M1NO2 NOD O S S d E 5 2 2 2 HOLOM PH YOLOW HOLIOVdV2 dV9 HININ YOLOW SW EW 03 S YOLIDVdYD 24421492 899 9 171009 50108 IW ZH JOULNOD HINUNG 23871238 3M3l 3015 LHOTY G3M3IA 4015 1441 N 6 Es 9 r H 3 H E AN NOTIISOA 1X3N Ol 25 ALIAS WOA3ANO3 30 bd DE 51 21 6 2 Ln QI z B WIH LX IN CC 021 Low Profile 1600 Se
3. Remove bypass tube assembly Remove four 4 nuts from burner orifice bracket Disconnect pipe union Remove assembly and replace main orifice Reassemble in reverse order and check system operation NOTE Check all gas line fittings for leaks RE BYPASS ORIFICE REPLACEMENT A Shut off power at main breaker B Remove appropriate control box cover C Remove pilot tube from bypass orifice and remove orifice D Reassemble in reverse order and check system operation Check all gas connections for leaks ON OFF SWITCH POWER REPLACEMENT 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 com BURNER CONTROL TRANSFORMER REPLACEMENT Remove appropriate control box cover Remove two 2 wires on primary side note color and location Hemove two 2 wires on secondary side note color and location Remove two 2 screws from transformer base and replace assembly Reinstall in reverse order and check system operation oco CONTROL TRANSFORMER REPLACEMENT oee BURNER CONTROL TRANSFORMER above CAPACITOR MAIN FAN MOTOR 7 5 MFD 370V REPLACEMENT A Remove appropriate control box cover B Remove two 2 wires from capacitor note wire number and location WARNING Capacitor has a stored
4. Assy Window Retainer Window Frame Bottom Glass Access Window Window Frame Top Screw 10 32x1 4 Thumb Screw Baffle Drive Cover L H Oven Top Drive Cover L H Hinge Assy Right Door Assy Small Latch Spring Finger Retaining Bracket Screw Finger Retaining Bracket Latch Leg Caster High Stand Caster Low Stand Baffle Air Return U L L R S N 35950 amp below Baffle Air Return U L S N 35951 amp above Baffle Air Return U R L L S N 35950 amp below Baffle Air Return U R S N 35951 amp above Finger Housing T 1 T 3 B 2 B 4 S N 35950 amp below Finger Housing T 1 T 3 B 2 B 4 S N 35951 amp above Finger Housing T 2 T 4 B 1 B 3 S N 35950 amp below Finger Housing T 2 T 4 B 1 B 3 S N 35951 amp above Columnating Plates See Installation Operations Manual Finger Cover Handle Assy Door Assy Large Screw 8 32x3 8 Hinge Assy Left 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 15 Low Profile 1600 Series Advantage Digital Service Manual Domestic Low Profile 1600 Series Advantage Digital Service Manual Domestic T Te uw m c e n e m 16 LETTER mmo
5. back side of fuse holder and push out D Reinstall in reverse order and check system operation GAS VALVE DUAL SAFETY REPLACEMENT 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 W C Nat 10 in W C L P NOTE Check all gas line fittings for leaks check and adjust manifold pressure D e ARI MANIFOLD ADJUSTMENT e SCREW LOCATED UNDER COVER SCREW TEMPERATURE REGULATING VALVE REPLACEMENT pnmuootumr 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 Low Profile 1600 Series Advantage Digital Service Manual Domestic MAIN ORIFICE REPLACEMENT Remove appropriate control box cover
6. charge discharge before handling or testing C Cut two 2 tyraps securing capacitor to base and replace D Reinstall in reverse order and check system operation 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 THERMOSTAT COOLING FAN REPLACEMENT Remove appropriate control box cover Remove two 2 wires from thermostat note wire number and location Remove two 2 mounting screws and replace thermostat Reassemble in reverse order and check system operation com Low Profile 1600 Series Advantage Digital Service Manual Domestic 11 12 HIGH LIMIT THERMOSTAT REPLACEMENT A B C D Remove appropriate control box cover Remove two 2 wires from thermostat note wire numbers and location for reinstallation Remove screws from bracket and remove thermostat Reassemble in reverse order and check system operation NOTE Depress reset button to insure thermostat is set for operation COOLING FAN MOTOR S REPLACEMENT Remove appropriate control box cover Remove four 4 mounting screws Unplug electrical connector and remove fan motor assembly Reassemble in reverse order and check system operation MAIN FAN MOTOR REPLACEMENT TI
7. to oven power relay If voltage is present and motor does not run replace burner blower motor WITH POWER OFF Check for locked rotor Fuse burner 10Amp Fuse holder Burner transformer Check for 120 VAC to the primary of the 24 VAC burner transformer If voltage is not present trace wiring back to the burner fuse If voltage is present check for 24 VAC at the transformer secondary If no secondary voltage is present replace the transformer Centrifugal switch of Check for 24 VAC to the centrifugal switch of burner blower burner blower motor motor see schematic diagram for proper wire numbers If no voltage is present trace wiring back to the burner 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 24V and 24Vgnd If voltage is not present trace wiring back to the centrifugal switch Check for 120 VAC supply to the ignition control at terminals L1 and L2 If no voltage is present trace wiring back to burner fuse If the above checks are okay proceed The ignition control should switch 120 VAC to the hot surface igniter across the two terminals marked HSI If no voltage is present replace the ignition control Hot surface igniter If 120 VAC is present at HSI terminals visually check to see that located in
8. 369811 369161 369806 370050 370247 1600 ADVANTAGE SERIES DESCRIPTION Complete Conveyor Conveyor Belting Belt 1 Foot Section Retaining Ring Conveyor Bearing Block Roll Conveyor Notched Conveyor Idler Shaft Conveyor Pan Stop Connecting Link Conveyor Drive Shaft Roller Chain Sprocket Crumb Pan Conveyor Frame Drive Chain Low Profile 1600 Series Advantage Digital Service Manual Domestic Low Profile 1600 Series Advantage Digital Service Manual Domestic 24 Lincoln D lt 7 SERVICE AND PARTS Low Profile 1600 Series Advantage Digital Service Manual Domestic
9. OU T Q Heed ID TOZEZTR Not shown CONTROL RIGHT 1600 000 A 1601 000 A S N L28563 AND ABOVE PART NUMBER DESCRIPTION 369161 Sprocket Drive 3 0357 Thermocouple Type K 369757 Main Orifice Nat 370279 Main Orifice L P 369398 Solenoid Valve 369552 Hot Surface Igniter 369755 Venturi Nat 369642 Venturi L P 369401 Air Shutter Assy 369366 Burner Blower Motor 369263 Gas Valve 369556 By Pass Orifice Nat 370276 By Pass Orifice L P 370251 Control Box Top R H 353082 Ground Lug 369537 Power Cord 369124 Cooling Fan 369531 Transformer 24 VAC Secondary 370359 Reversing Switch 369192 Capacitor 369012 Fuse Holder 369013 Fuse 369014 Fuse 10A 369507 Thermostat Cooling Fan 369431 Thermostat Control Box Hi Limit 370352 Capacitor Conveyor Motor 3 0353 Conveyor Motor 369532 Ignition Control 3 0354 Facia Label 370355 Control Oven 370256 Side Panel R H 369805 Switch Power 369523 Relay 370495 Bracket cooling fan RH S N L32631 and above Low Profile 1600 Series Advantage Digital Service Manual Domestic Low Profile 1600 Series Advantage Digital Service Manual Domestic tu lt n J tr 2 Q o 17 18 CONTROL LEFT 1600 000 A 1600 000 A S N L28563 AND ABOVE LETTER PART DESCRIPTION A 3 0358 Thermocouple with Extension Type K for S N L28563 and Above B 369507 Thermostat Cooling Fan 369431 Thermos
10. SERVICE MANUAL DOMESTIC IMPINGER CONVEYOR OVENS MODEL 1600 000 A 1601 000 A WITH PUSH BUTTON CONTROLS 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 Fax 260 436 0735 Technical Service Hot Line 800 678 9511 www lincolnfp com odios LA STAR CERTIFIED SERVICE AND PARTS 1600AdvDigSvc HEV 1 8 07 SEQUENCE OF OPERATIONS 1600 000 A 1601 000 A POWER SUPPLY CONTROL BOX AUTO COOL DOWN MAIN FAN CIRCUIT BURNER CIRCUIT TEMPERATURE CONTROL CONVEYOR DRIVE SERIAL NUMBERS L28563 and ABOVE with push button control MODEL 1600 000 A 120 VAC 60 HZ NATURAL GAS MODEL 1601 000 120 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 1 7 C the Cooling Fan Thermostats will switch power to the Cooling Fans The thermostats will interrupt the power to the Cooling Fans when temperature falls to 100 F 3 F 87 C 1 7 120 VAC is permanently supplied to the normally open Power Switch both normally open Cooling Fan Thermostats and one of the normally open contacts of the Power Relay Closi
11. and then turn back on When the Centrifugal Switch of the Main Motor Fan closes power is applied to the oven Control The Oven Control is set to the desired temperature The thermocouple will provide varying millivolts to the Oven Control The Oven Control supplies 120 VAG to the Temperature Regulation Valve at intermittent intervals to maintain the desired temperature The display on the Oven Control will indicate when the Temperature Control Valve is energized NOTE The display also indicates oven temperature Closing the main Power Switch supplies 120 VAC through the Oven Power Relay to the Conveyor Motor and to the primary of the Control Transformer Secondary voltage 24 VAC is supplied to the Oven Control Setting the Control to the desired time outputs voltage through a Reversing Switch to the Conveyor Motor NOTE The conveyor system uses a Magnet and a Hall Effect Sensor to prove operation of the Conveyor Motor If the Conveyor Motor is not running BELT JAM is indicated on the display Low Profile 1600 Series Advantage Digital Service Manual Domestic SCHEMATIC DIAGRAM 1600 000 A 1601 000 A SERIAL NUMBER L28563 AND ABOVE NYJ MIN XOLOW ANTIN pie regs a thee me 0902808257578 SYJAWNN SHIM 9 13N9VH H TOHLNOI H3NHnB H3W4H035NYHl EHX Cux WOLINOI JOY34NS LOH ZISH LISH VINVAQV 311JOHd M YINI dW JOMINOO H3HHOJSNVHl UX MOSN35 133443 TVH SH SEG
12. blade to check for locked rotor charge discharge before testing Check circuit breakers reset if required Check power plug to be sure it is firmly in receptacle Call power co if needed needed Fuse 3 Amp Check replace if necessary Fuse holder Check replace if necessary E 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 Cooling fan s 120 VAC should now be at the fan motor If voltage is not present trace wiring back to hi limit thermostat Check motor for opens shorts or grounds WITH POWER OFF Check for locked rotor No automatic control box Incoming power Check circuit breakers reset if required Check power plug to be cooling supply sure it is firmly in receptacle Call power co if required Cooling fan Check the cooling fan thermostat thermostat closes at 120 F thermostat s and opens at 100 F With the cooling fan thermostat preheated check for continuity If switch is open replace thermostat Fuse 3 Amp Check replace if necessary Hi limit thermostat s Check for voltage on both sides of switch Terminals are control box normally closed If open reset and test oven for proper operation If thermostat will not hold and control box 4 Low Profile 1600 Series A
13. d under Oven will not heat can cause intermittent failure Conveyor will not run Power supply Check for incoming voltage at line 1 to neutral There should be a voltage reading of 120VAC If not present check circuit breakers needed Fuse 10 Amp Check replace if necessary Fuse holder Check replace if necessary Intermittent heating Thermal overload of main fan and burner blower motors Low Profile 1600 Series Advantage Digital Service Manual Domestic 7 Hi limit thermostat s control box Relay oven power Control transformer Conveyor motor Switch conveyor reversing motor runs NOTE Display will but there is no speed indicate Belt Jam display mE Check for voltage both sides of the switch Terminals normally closed If open reset and test oven for proper operation thermostat will not hold and control box temperature is not exceeding 140 F 60 C replace thermostat Check for 120 VAC to the relay coil If voltage is not present Trace wiring back to the hi limit thermostat If voltage is present check to insure contacts are closing Check for 120 VAC supplied to terminal 2 of the relay If voltage is not present at terminal 2 trace wiring back to the 10 Amp fuse Replace relay as needed Check for 120 VAC supply to the primary of the control transformer If no voltage is present trace wiring bac
14. dvantage Digital Service Manual Domestic WEEN GE temperature is not exceeding 140 F 60 C replace thermostat Cooling fan s 120 VAC should be at the motor If voltage is not present trace wiring back to hi limit thermostat Check motor for opens shorts or grounds WITH POWER OFF Check for locked rotor Also check flexible gas line connection for any damage Ps Main fan Ifnotoperating 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 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 6 of the relay If voltage is not present at terminal 6 trace wiring back to the power source Replace relay as needed Centrifugal switch of Check for 120 VAC supplied to the centrifugal switch If no main fan motor voltage is present trace wiring back to the oven power relay If voltage is supplied to the centrifugal switch and the motor is running but there is no voltage out of the centrifugal switch replace the main fan motor NOTE See schematic diagram for proper wire numbers on motors Fuse burner 10 Fuse holder Burner blower motor Check for 120 VAC supplied to burner blower motor If voltage is not present trace wiring back
15. k to the oven power relay If voltage is present check for 24 VAC at the transformer secondary If there is primary voltage but no secondary voltage replace control transformer Check for 120 VAC supply to the conveyor motor at wire 14 to neutral If no voltage is present trace wiring back to the primary of the control transformer If voltage is present and the motor will not run check the motor windings for opens or shorts WITH POWER OFF Check the motor windings as follows Grey to black 38Q approx Grey to blue 38Q approx Blue to black 750 approx If any of the above fails 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 120VAC 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 sensor sensor is located in 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 present at the oven control replace the oven control If there is voltage supplied to the hall effect sensor check for a frequency output from the hall effect sensor Measure frequency across the yellow and white wires at the moto
16. ly to control If no voltage is present trace wiring back to control transformer If 24 is present check for a read out on the control display If there is 24 VAC supplied but there is no read out on the control display replace the oven control If there is a read out on the control set the control to maximum temperature see installation operations manual for temperature adjustment With the control set at maximum temperature check for 120 VAC at temperature regulation valve If there is voltage at the temperature regulation valve proceed to temperature regulation valve for next check If there is no voltage at the temperature regulation valve trace wiring back to the oven control If there is no voltage output at the oven control Check the read out on the control If the control reads LP FAIL or RP FAIL this indicates that the thermocouple has failed or has become disconnected from the control LP FAIL indicates a problem with the left thermocouple probe and RP FAIL indicates a problem with the right thermocouple probe Thermocouple Check to be sure that the thermocouple is securely connected to the oven control If the thermocouple is connected to the oven control and the control indicates LP FAIL or RP FAIL disconnect the thermocouple from the oven control and measure the resistance of the thermocouple The left thermocouple should read approx 210 The right thermocouple should read appro
17. move control box cover and front panel Remove all wiring connections and mark for reassembly Hemove 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 1600 series ovens have dual burner systems The oven control must be set to the Dual oven mode Set the control as follows With the oven power switch depress the temp and down buttons and turn the oven on Control will indicate Low Pro Release the buttons The control will indicate Temp to store Press the temp button The control is now set for dual burner operation Low Profile 1600 Series Advantage Digital Service Manual Domestic 13 LETTER lt c 4 OoJJOUOZzzrAcc ronmuoou PART 369110 369929 369926 369925 369927 369930 369211 369058 3 0253 1609 3 0252 369745 369723 369783 369717 369057 369501 369238 369030 369390 3 0167 370663 370166 370662 370168 370665 370169 370664 369707 369740 369718 369931 369746 GENERAL 1600 ADVANTAGE SERIES DESCRIPTION Access Window
18. n back assy is required to replace thermocouples Remove thermocouple from wire form in oven chamber and remove from chamber NOTE R H Thermocouple viewed from front is connected directly to the Oven control unplug thermocouple from oven control and remove thermocouple When changing L H Thermocouple viewed from front the back motor cover must also be removed to gain access to the thermocouple connector plug Low Profile 1600 Series Advantage Digital Service Manual Domestic Reassemble in reverse order making sure bulb 15 placed securely in the wire form in the oven chamber Check system operation recalibrate as needed NOTE The R H and L H Thermocouples are different R H one piece L H two piece and must be ordered accordingly THERMOCOUPLE MEASURMENT TEMPERATURE D C MILLVOLTS APPROX 200 2 8 250 4 0 300 9 1 350 6 0 400 7 1 450 8 2 500 9 3 550 10 4 600 11 5 BEARING CONVEYOR REPLACEMENT A B C D E Hemove conveyor from oven and place on a flat work surface Remove connecting links from conveyor belting See Installation and Operating Instructions Manual Remove conveyor belting from conveyor Remove drive sprocket from drive shaft Move drive shaft or idle shaft toward end of conveyor and shaft with bearing will now slip out of holding bracket Replace bearing and reassemble OVEN CONTROL REPLACEMENT mootur G Shut off power at main breaker Re
19. ne fittings for leaks Make sure connector is seated properly TI O C I O CONVEYOR DRIVE MOTOR REPLACEMENT Shut off power at main breaker Remove conveyor Remove control panel top and front cover Disconnect wiring from motor and mark for reassembly Remove sprocket from motor drive shaft Remove 4 screws and remove conveyor motor and mounting bracket Remove mounting bracket from conveyor motor assembly Reassemble in reverse order ommoomg CAPACITOR CONVEYOR MOTOR REPLACEMENT Shut off power at main breaker Remove control box cover and front panel Discharge capacitor before removing wires Mark wires for reassembly Remove mounting screw and remove capacitor Reassemble in reverse order and check system operation moo REVERSING SWITCH REPLACEMENT Shut off power at main breaker Remove control box cover Disconnect wiring from reversing switch and mark for reassembly Remove mounting nut and remove reversing switch Reassemble in reverse order and check system operation Low Profile 1600 Series Advantage Digital Service Manual Domestic 10 REVERSING CONVEYOR DIRECTION A Shut off power at oven switch B Set conveyor reversing switch in the other position C Turn oven on and check for proper operation FUSEHOLDER REPLACEMENT A Remove appropriate control box cover B Remove two 2 wires note wire number and location C Remove lock nut on
20. ng the normally open Power Switch supplies 120 VAC through the Cooling Fan Motor Fuse and through both normally closed control box Hi limit Thermostats energizing the coil of the Oven Power Relay These normally open contacts now close supplying 120 VAC through the 10 Amp Main Fan Motor Fuse to the two Main Fan Motors and the two Burner Motors Power is also supplied to the four cooling fan motors the Control Transformer heat and conveyor control systems Closing the Oven Power Relay supplies 120 VAC to the two burner systems NOTE This oven utilizes two complete burner 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 oven 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 Ignition 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 occur If ignition does not occur in 6 seconds the control will lock out To recycle after lockout turn the Power Switch off for 45 seconds
21. r must sense a flame or the ignition control will go into lockout The ignition control requires a minimum of 0 8 micro amps DC To check the flame sensing operation connect a digital multimeter capable of measuring DC micro amps between the GND burner terminal on ignition control and the ground wire 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 DC micro amp test must be conducted with the oven in low flame bypass operation Set the temperature control to its lowest setting bee oe 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 wil be lit at this time Low flame is on but no Control transformer Check for 120 VAC supply to the primary of the control main flame transformer If no voltage is present trace wiring back to the oven power relay If voltage is present check for 24 VAC at the transformer secondary If there is primary voltage but no secondary voltage replace control transformer 6 Low Profile 1600 Series Advantage Digital Service Manual Domestic Oven control Check for 24 VAC supp
22. r 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 8 Low Profile 1600 Series Advantage Digital Service Manual Domestic REMOVAL INSTALLATION amp ADJUSTMENTS MODEL SERIES 1600 ADVANTAGE SERIAL NUMBER L28563 AND ABOVE OVENS WITH PUSH BUTTON CONTROLS CAUTION BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE IMPINGER OVEN BE SURE TO DISCONNECT ELECTRICAL POWER AND GAS SUPPLY BURNER BLOWER MOTOR REPLACEMENT 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 SHUTTER ADJUSTMENT Should be set at 1 2 open mOOW gt HOT SURFACE IGNITER REPLACEMENT 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 li
23. ries Advantage Digital Service Manual Domestic TROUBLESHOOTING GUIDE GAS OVENS MODEL 1600 000 A NATURAL GAS 120 60 HZ 1 PHASE MODEL 1601 000 A LP GAS 120 60 HZ 1 PHASE NOTE When checking components on left side of oven be sure to check for proper connections in power connector marked P C on schematic diagram located inside motor cover Oven fan will not run Incoming power Check circuit breakers reset if required Check power plug to be supply sure it is firmly in receptacle Measure the incoming voltage Call power co if needed 3 cc Check continuity between switch terminals Replace switch as needed Fuse 10 Amp Check replace if necessary O Fuse holder Fuse Check replace if necessary O 10 10 10 1 Fuseholer Check replace if necessary O 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 KE If thermostat will not hold and control box temperature is not exceeding 140 F 60 C replace thermostat Relay oven power Check for 120 VAC to the relay coil If voltage is not present WE Trace wiring back to the hi limit thermostat If voltage is present check to insure contacts are closing Check for 120 VAC supplied to terminal 2 of the relay If voltage is not present at terminal 2 trace wiring back to the 10 Amp fuse Replace relay as needed fan
24. side the hot surface igniter is heating igniter may be viewed through burner assy port in the 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 hot surface igniter Low Profile 1600 Series Advantage Digital Service Manual Domestic 5 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 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 the valves check piping for obstructions If there are no obstructions replace gas control valves Flame will not stay lit Hot surface igniter The ignition control will keep the gas control valves energized for 6 seconds At the end of 6 seconds the hot surface ignite
25. tat Control Box Hi Limit D 369532 Ignition Control 369531 Transformer 24 VAC F 369012 Fuse Holder G 369014 Fuse 10 A H 369192 Capacitor 369124 Cooling Fan J 369556 By Pass Orifice Nat 370276 By Pass Orifice L P K 369263 Gas Valve L 369366 Burner Blower Motor M 369401 Air Shutter Assy N 369552 Hot Surface Igniter O 369755 Venturi Nat 369642 Venturi L P 369398 Solenoid Valve Nat LP Q 369757 Main Orifice Nat 370279 Main Orifice L P R 370272 Side Panel L H S 370250 Control Box L H Not shown 370496 Bracket cooling fan LH S N 132631 and above Low Profile 1600 Series Advantage Digital Service Manual Domestic Low Profile 1600 Series Advantage Digital Service Manual Domestic 20 LETTER TI I I O O PART 369547 369725 369776 369777 369778 369761 369726 1627 369033 370245 370246 369724 1600 ADVANTAGE SERIES DESCRIPTION Wire Form Thermostat Bulb Fan Clockwise Rotation Fan Shroud Stand Off Rear Wall Assy Motor Mount Motor Main Fan 120V 60 Hz Duct Cap Motor Clamp Rear Duct Manifold Assy Fan Counter Clockwise Rotation Low Profile 1600 Series Advantage Digital Service Manual Domestic Low Profile 1600 Series Advantage Digital Service Manual Domestic 21 22 LETTER gt lt PART 369830 369816 370092 369825 369813 369314 369812 369160 369814
26. x 11Q If these readings are not achieved replace the thermocouple If these 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 120VAC output to the temperature regulation valve replace the oven control If there is 120VAC output to the temperature regulation valve proceed Temperature Check for 120VAC supplied to temperature regulation valve If regulation valve 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 motors and burner blower motors are equipped with internal thermal protection and will cease to operate if overheating occurs As the motors overheat and then cool this will cause the heating systems to cycle on and off intermittently Improper ventilation or lack of preventive maintenance may cause this problem Also most of the problem liste
Download Pdf Manuals
Related Search