Home

1100 Series

1. 7 4 id A n 4 esr M td 29 043 94 54 sdy MH3mio3sNYHL HO 100 N33U 400 0109 es 100 H3 1IS 15 Impinger II 1100 Series Service Manual Domestic SCHEMATIC 1132 1133 S N 2011384 amp ABOVE EE LL ZELL ST3QON 1N28313 9 WEST Tc 6 GE A20 78 8 6 51 NO LNS PULS G 1Y34 42078 1106 151510 275102 SUIEHNN 3 BOAJANO 380 SNYUL TX YINBOISNYYL LEX 3411 1 1 AYWISSY 104 39120939431 21 SJLANIM OG AVTIG 3411 01 f 374202069391 21 HOCH IVISOWYJHI 21 3411003 XOG 08 80 LYLSOKY3IHI Avi k N3A0 HOLIMS S MOA3 N02 H2lINS 25 NJAO HJLIRS 15 Aun2Ju34 8012Y1N02 EN NAO 1002 3 IMYLS NJAO AVII 29 30104 NJAO AVII 5 YOAIANOD 010 M 9417022 80124 NJAC MOLOK 13N9Yk MOIV IONI H31V3H 1 MOSN3S 123333 Tyk SH OH S L 01 7 9 7 12 HILING 34155349 Say Impinger Il 1100 Series Service Manual Domestic 16 1163 S N 2011978 amp ABOVE SCHEMATIC 1162 911 pue 2911 SISGOW 22078 WNIKUIL 109181510 143 313 9NI1V34 N01198181510 MOTE 2 195102 NS SH3EM N SBIN BOASANOY H3WEOJSNYHL 1 311 U3NBOJSNY8L 3N11 AT KISSY 10d 3UnlVH3cH3l S3LANIK 02 AY730 BEWIL 3931 371810204 1
2. Switch Heat With switch on check for 120 VAC on both terminals to neutral Replace if defective Air Pressure Switch This normally open switch should close when the main fan is activated If adjustment is necessary Refer to Section D Replace if defective Fuse 3 Amp Check replace if necessary Fuseholder Check replace if necessary Temperature Control Check for 120 VAC supply at terminal 11 to neutral on temperature control If no voltage is present trace wiring back to 3 amp fuse Turn the temperature adjustment knob to maximum temperature position and check for 120 VAC at the load terminal 49 and neutral If 120 VAC is present and unit is not heating refer to Mercury Contactor for next check If 120 VAC is not present roceed 22 Thermocouple Probe WITH POWER ON AND THERMOCOUPLE LEADS ATTACHED TO THE TEMPERATURE CONTROL BOARD measure D C millivolt output of these leads Refer to thermocouple chart on page 36 for proper readings If these readings are not achieved replace thermocouple Impinger Il 1100 Series Service Manual Domestic Temperature Control Potentiometer WITH POWER OFF remove the potentiometer leads from the temperature control board and measure ohms from black to white leads The reading should be from approximately 0 to 2 5k ohms as the dial of the potentiometer is turned throughout its full rotation From black to red leads the reading
3. Disconnect the yellow tipped thermistor leads from the time temp terminals 9 and 10 Measure the resistance of the thermistor probe and temperature of oven See the chart on page 44 for proper resistance readings Inspect the thermistor bulb for its proper location in its spring holder Check for short in leads where they enter the sensor bulb Also check each thermistor lead for short to ground Impinger II 1100 Series Service Manual Domestic 27 Thermocouple Probe Place your pyrometer thermocouple into the center of top finger Connect temperature meter to thermocouple at terminals 9 amp 10 on back of the time temp display Be sure to maintain proper polarity on thermocouple connections Compare actual oven temperature with the reading at the time temp display If the temperature readings match re calibrate or replace time temp display If the readings do not match replace thermocouple probe Erratic time temp dispaly If strange or unusual behavior is experienced such as a rolling of numbers or lock up at a given number first check for a display circuit lock up This can be caused by a voltage spike or surge in the incoming power lines To eliminate this condition remove power from the time temp display by shutting off the main fan switch for 15 seconds or if display stays on older models circuit breaker interruption may be required This should eliminate the problem If the problem continues jumpe
4. Oven fan will not run Incoming Power Supply Check circuit breakers Reset if required Call Power Co needed Fuses 10 Amp Check replace if necessary Fuseholder Check replace if necessary Switch Main Fan Check for continuity between switch terminals Main Fan Relay Check continuity of 120 VAC coil Check for power to relay coil 120 VAC Check for 208 240 VAC to the relay terminals Main Fan Motor Check for opens shorts or grounds WITH POWER OFF Turn fan blade to check for locked rotor Capacitor Check for opens shorts or grounds No control box cooling Check for main fan operation If not operating refer to Oven fan will not run Cooling Fan Motor 120 VAC Should be present at the fan motor If voltage is present check for opens or shorts WITH POWER OFF Check for locked rotor of the fan motor No main fan cool down Cool Down Thermostat Check cool down thermostat thermostat closes at 160 F and opens at 140 F Check for power 120 VAC at cool down thermostat With cool down thermostat preheated check for continuity If switch is open replace Oven will not heat Main Fan Motor Check for main fan operation If it is not operating refer to Oven fan will not run High Limit Thermostat Oven Cavity Terminals are normally closed If open reset the thermostat and test for proper operation If it will not reset and hold then replace
5. AMI 19160663841 9417022 1051403 JViSO4EGM 1934 N340 HOLIAS MOAZANOD HOLIAS N3AO HOLIAS AVS WOR C2 37 312 3 92933 238 St3lY3F AV 138 03 7003 8 Lavis N3AO AV TRY 23 80108 Av 3H 1 BOASANCO 80108 9N17009 BOLOW vida 3 N3A0 801064 14 JINI x 501N270N M31V34 1 80SN3S 123443 TWH 54 536 9 0091 SIN3W373 9N11V3M 4 7041403 39 iyu3ck3l 3913 bd VE 1081409 EOAJANO 3504 VOL BOLOK NY3 3503 3 13 108102 38NIVUJdK3L 21808123713 213 ANISSY 106 d 7981403 YOASANOD 3 O34 S 50119747 19 W21IMS 39055333 31 SdY 17 Impinger II 1100 Series Service Manual Domestic TROUBLESHOOTING GUIDE 1116 1117 GAS OVENS MODEL 1116 NATURAL GAS 120VAC 60 HZ 1 PHASE MODEL 1117 L P GAS 120VAC 60 HZ 1 PHASE REFER TO PROPER SCHEMATIC FOR IDENTIFIED COMPONENTS SYMPTOM POSSIBLE CAUSE EVALUATION Oven fan will not run Incoming Power Supply Check breakers Reset if required Check power plug to be sure it is firmly in receptacle Measure incoming power call Power Co if needed Main Fan Switch Check continuity between switch terminal 20 Minute Time Delay Main Fan Relay Check for 120 VAC at terminal 1 to neutral on 20 minute Time Delay Relay If no voltage is present trace wiring back to power sourc
6. Remove motor mounting fixture Install the motor in reverse order insuring that the motor shaft is centered in the Shaft tube of the oven back CAPACITOR MOTOR 1 Model 1100 1106 Capacitor is located under motor cover in rear of unit and held in place by a plastic wire tie Discharge capacitor remove and replace FOR ALL OTHER 1100 MODELS Capacitor is located under rear control box cover and held in place by a plastic wire tie MAIN FAN Shut off power at main breaker 2 Remove motor cover from back of oven 3 Disconnect and mark motor wiring of main fan motor and remove entire oven back from oven NOTE Turning the oven back bolts back and forward while applying a spray lubricant or penetrating oil will help minimize breakage 4 Loosen and remove set screw in hub of fan 5 Remove fan The motor shaft has a flat making removal of fan fairly easy If trouble is encountered apply spray lubricant or penetrating oil in set screw hole andon motor shaft NOTE This fan is balanced by the manufacturer and must be handled carefully Suggested storage is by suspending the fan through the shaft hole 6 Reinstall fan with the tips of the fan blade closest to the oven back 7 Position of the fan on the motor shaft will be 1 1 2 3 81cm from the top of the oven back cone to the bottom of the fan hub Refer to drawing The oven back must be removed to make this measurement 8 Align set screw with motor shaft flat and
7. Disconnect wires from solenoid valve Mark wires for reassembly Loosen pipe union in piping assembly Impinger Il 1100 Series Service Manual Domestic 6 7 8 Remove 4 nuts from burner manifold and remove valve assembly Remove piping from solenoid valve Reassemble in reverse order NOTE Some piping changes may be required See instructions supplied with replacement part HEATING ELEMENTS 1 Shut off power at main breaker 2 Remove back cover 3 Disconnect heater element wire and mark for reassembly 4 Disconnect motor wiring and mark for reassembly 5 Remove oven back from oven 6 Remove fan shroud 7 Heater element may now be unbolted and removed 8 Check heater elements to be sure they are the proper replacement 9 Reassemble in reverse order NOTE Be sure the lead terminals are tight IGNITION CONTROL 1 Shut off power at main breaker 2 Shut of the gas supply in the main line to the oven 3 Remove conveyor 4 Remove the front control compartment cover Note After S N 2011383 a removable drip tray is located above the ignition control 5 Disconnect the wires from the ignition control and mark their location for reinstallation 6 Remove the 4 mounting screws and remove the control 7 Reassemble in reverse order 8 Turn on electrical power and gas supply then check the system for proper operation L2 NEUTRAL 26 VALVE VALVE GND 25V GND BURNER GROUND 27 34 35 YELLOW
8. Remove control compartment covers Remove metal drive end from the motor shaft Remove electrical leads from gearmotor assembly and mark for proper reassembly Remove 4 screws holding gearmotor to the side wall of control compartment To remove tach optical encoder assembly and coupling and encoder disc refer to the following instructions Reassemble in reverse order using care to readjust motor properly to be in line with conveyor coupling NOTE If a new gearmotor is installed the D C motor control board must be recalibrated COUPLING AND ENCODER DISC OQONDARGN Remove gearmotor assembly See GEARMOTOR Remove dust cover above motor Loosen both allen set screws 050 inch allen wrench located on coupling hub Remove 3 screws from tach bracket loosen the 4th Remove encoder assembly see OPTICAL ENCODER ASSEMBLY in following procedure Push coupling down on motor shaft Swivel tach bracket aside and remove coupling To install push coupling on to motor shaft The encoder disc must be nearest motor Refasten tach bracket in proper alignment Tighten the set screw on the tach side first maintaining the 010 minimum dimension between the coupling hub and tach Impinger II 1100 Series Service Manual Domestic 39 10 Pull the coupling apart approximately 1 8 3 2mm and fasten the motor side set screw 11 Install the optical encoder refer to OPTICAL ENCODER in this section for adjustment NOTE The
9. THERMOCOUPLE TYPE J THIS BOARD DISCONTINUED AT S N 2000932 TEMPERATURE CONTROL POTENTIOMETER 0 2 5K OHMS 1 TURN Shut off power at main breaker Remove front control box cover Loosen and remove temperature control knob Remove hex nut and washer then remove pot from rear of compartment Remove and mark wiring for replacement Replace in reverse order 7 Recalibrate the dial See Temperature Control THERMOCOUPLE PROBE The sensor bulb is located in the oven compartment behind the lower finger and held in position by a wire form holder CAUTION ALLOW OVEN TO COOL Shut off power Remove conveyor and lower finger Remove control compartment covers Remove sensor bulb from the wire form holder pull thermocouple out of the oven through the access tube and disconnect leads from terminals 6 and 7 of the temperature control board To install push thermocouple bulb through the access tube and place in wire form holder Be sure that wire form holder is exerting enough pressure on the sensor bulb to hold it in place If sensor bulb is not held securely replace the wire form holder or bend the holder slightly to hold sensor bulb in place 6 Reconnect RED lead to terminal 7 and WHITE lead to terminal 6 7 Replace conveyor and fingers PO e Impinger II 1100 Series Service Manual Domestic 35 THERMOCOUPLE MEASUREMENT CHART J U N C T I 0 N EXPLANATION The junction tempera
10. 32 YELLOW 33 IGNITION CONTROL TRANSFORMER STEP DOWN 24 VAC o dorm Shut off power at the main breaker Remove conveyor Remove front control compartment cover Remove wires from transformer and mark for reassembly Remove 2 mounting screws and replace transformer Reassemble in reverse order BURNER VENTURI See Hot Surface Igniter Impinger II 1100 Series Service Manual Domestic 37 HOT SURFACE IGNITER SO DN e Shut off the electrical power at main breaker Shut off the gas supply in the main line to the oven Remove conveyor Remove rear control compartment cover Remove Conveyor Motor Remove electrical plug from the burner cap Loosen the pipe union in the gas line Remove 3 screws holding burner cap to burner tube Pull out on burner cap removing cap and burner venturi The hot surface igniter is held in place on the burner venturi by a screw loosen screw and remove igniter Replace in reverse order NOTE Care must be used when handling the hot surface igniter as they are quite fragile and may be easily broken if dropped or bumped ORIFICE MAIN BURNER Qu Oy gre c m Shut off power at main breaker Shut off gas at main line to the oven Remove conveyor Remove control compartment covers Loosen 4 nuts holding manifold to burner cap Loosen pipe union Remove valve and manifold Remove main orifice Reassemble in reverse order ORIFICE BY
11. 4 Impinger Il 1100 Series Service Manual Domestic S N 2011383 and above The speed side of the Time Temp Display uses a slotted disc Refer to page 27 cemented to tach coupling to break the infra red light beam of the optical encoder mounted on gear motor producing electrical pulses that are transmitted to the display The display converts these pulses into a read out of minutes and seconds The temperature portion of the Time Temp Display uses a Thermistor Probe to sense oven temperature The thermistor This resistance is then converted by the display into a temperature reading AUTOMATIC COOL DOWN When this oven is started the time delay relay timing circuit is enabled permitting the oven fans to run for approximately 20 minutes after the oven is shutoff to cool the oven The Time Delay Relay will keep the coil of the Main Fan Relay closed maintaining operation of main fan and Cooling Fan Motors Impinger II 1100 Series Service Manual Domestic SEQUENCE OF OPERATIONS 1130 1133 amp 1160 1163 MODEL 1130 ELECTRIC 120 208 VAC 1 PHASE MODEL 1131 ELECTRIC 120 240 VAC 1 PHASE MODEL 1132 ELECTRIC 120 208 VAC 3 PHASE MODEL 1133 ELECTRIC 120 240 VAC 3 PHASE MODEL 1160 ELECTRIC 120 208 VAC 1 PHASE MODEL 1161 ELECTRIC 120 240 VAC 1 PHASE MODEL 1162 ELECTRIC 120 208 VAC 3 PHASE MODEL 1163 ELECTRIC 120 240 VAC 3 PHASE POWER SUPPLY Electrical Power to be sup
12. 821185 34155334 UIV Sav Impinger Il 1100 Series Service Manual Domestic 14 SCHEMATIC 1132 1133 S N 2011383 amp BELOW amp 1162 1163 S N 2011979 amp BELOW 911 pue ZOLL CELL ZELL STIGON MYR 3 2804 3Nunut Yu3amal 0 4 1041802 213 DMITOOO AVTBU tu IVA SCL VaMMOSGNYML WX ti Aot AY RQ Ll M3902N3 WLO 30 AGE ONYAN A 0 ait 02 SWHOOET WXLJMOUNSIOd di WOLOMMYID EN H ANO 911 7 9t LON 290Ud HL WOLOR IM 14 WOLDVLNOD 12 TVIL 214 MY4 VOLON LW Ob X0 HRLINOUNTIOG 49 CC AWISC OL Audun ONuY3H IOUd dNYl 1 YO OHVOG 1041402 39 WUANI RU JOE AUTI 204 Q UOTE 1 70u1N09 HOAZANOO dWY 2374 TO WIXv3wS 17942 83 seg 02000 lt equeu wed euonotiod aeu 3594 rt 894 PROG KUA 133 ASKE HALAS s dM 29 a MOLOR NIVA F WOLIVEYS L amd wu sued waj praep s GORM 01000 LAG I 1949 SOL ANOS HILLMS tS av 2604 LINTHOU ALAYI NJAO LYLSORHEHL Ws peddinbe en Ut O99000 Thu rta ua ff 184 0OMLV3H MOLIMS Ad MY4 ONDOOQ AYLSOMHIHL Lie 1523 NVA HOLME i8 SOOHLNOO ONV HOLGER NY 4 KIVI 4 OL BSN Ed 34709394 UTV HOLMS SIV
13. If switch will not deactivate when blower pressure is eliminated turn adjustment clockwise Impinger Il 1100 Series Service Manual Domestic SPARK GENERATOR DO OL BG NO E Turn off power Remove conveyor Remove control compartment covers Disconnect 2 power leads to ignition control Located in bottom front of rear control compartment Disconnect high voltage cable Remove 2 screws and lift out generator Replace in reverse order IGNITER SENSOR PROBE 1 2 3 See page 38 to remove hot surface ignitor Unfasten screws and remove probe Disconnect wires and replace probe in reverse order IGNITION CONTROL 1 2 3 4 5 Shut off power at main breaker Remove control compartment covers For Honeywell Ignition Control loosen 2 screws and remove control from base For Landis amp Gyr Ignition Control depress 2 clips and remove control from base If replacing the control and base remove the control first and then 2 screws holding the base Mark wires prior to removal Reassemble in reverse order Be sure base is correctly mounted or reset will not align with cover hole MOTOR BURNER BLOWER OA OT ON Shut off power at main breaker Remove conveyor Remove control compartment covers Remove conveyor gear motor Loosen 4 burner nuts holding burner flange to oven wall Unplug burner blower motor This plug has built in locking clips on 2 sides of the plug Push in to release Loosen 3
14. X 369189 Terminal Block Y 369508 Time Delay 20 Minute Not Used On Models 1100 1106 Z 369507 Thermostat Cooling Fan Not Used On Models 1100 1106 AA 369640 Stepper Control Models 1130 thru 1136 1150 1151 S N 2011383 and Up Models 1160thru 1163 S N 2011978 and Up BB 369685 Drain Assembly CC 369605 Transformer Stepper Controller Impinger Il 1100 Series Service Manual Domestic BLOW UP CONTROL COMPARTMENT FRONT 1100 1106 1130 1136 1150 1151 1160 1163 Impinger II 1100 Series Service Manual Domestic 56 PARTS CONTROL COMPARTMENT FRONT 1116 1117 LETTER P N DESCRIPTION A 369173 Transformer 12 6 VAC B 369536 Cordset Cooling Fan C 369124 Cooling Fan D 350225 Lens Red E 369522 Knob amp Dial Thermostat F 369669 Front Panel Label Ovens w Set Button 369907 Front Panel Label Ovens w o Set Button G 369248 Knob Speed Control H 369247 Shaft Lock 370046 Button Only J 369260 Switch On Off K 369167 Switch Display Set L 369152 Potentiometer Conveyor 969391 Potentiometer Conveyor M 369680 Front Cover Assembly N 369104 Lamp Pilot 24 VAC 369520 Potentiometer Temperature P 369172 Display Time Temp Q 369728 Temperature Control Resistor Not shown 370136 Assembly 2K ohms R 369155 Control Conveyor S 369240 High Hat T 369193 Thermistor Probe Yellow Leads U 369131 Thermocoupl
15. n 259 2 cai Q34 29 Elg 21 3 Impinger Il 1100 Series Service Manual Domestic 10 SCHEMATIC 1116 1117 S N 2011384 amp ABOVE S1330N S 22018 WH wal aneleista OG 66 mm NOLLVENS I 3400 NOLLVENO I ANCA OMISNOS Nid NISPOM LINUS i 1481403 HCAJANOJ blaNOJGNYUI 2641402 MINE e34ND4CNYML 12 QYA9 CL 71 1 HJAMDIGNYGL 413345 SATVA NO011YY 924 3Un1VHXcM21 3A WA AVTESIG D 784355 10 sH IVM3dWil S3L NIH OZ 120 d3Wll f 3911 37870204931 CW9n341MIN32 YOLOW N3AQ HILERS WENS SLNID 431078 BING 821175 PS elll S ES 50435122 HILING 25 NYJ NJAO SILING 15 WOLOK 4 NIAD 135 18 v3 9817002 480154 58 34078 YINDNE fadh WCA3ANO2 7UD CM INDUS 9171503 B2iOW Zd N3A2 HOLCH LINDY ME MOIVO CN INUNA Mw HOSN3S 123233 NWH SH 0113 326372 10 05N35 WYU 484 MOSNOS 2414 81 VE ISN Voi z3wWnd 73513 YOU C W 3S03 14 705 402 3871 8393 3140612373 704255 104 BOAINND dj 70u N02 SOA3ANO Od S 9113247 N3AQ LIKET HOP 16150031 95 702 XOG 1061995 IVILSOWSIHL 2651409 BINH DE TEC 8 gt H 11 Impinger II 1100 Series Service Manual Domestic SCHEMATIC 1130 1131 S N 2011383 amp B
16. u L n rennen nennen 17 TROUBLESHOOTING GUIDE 1116 117 18 TROUBLESHOOTING GUIDE 1100 THRU 1103 22 TROUBLESHOOTING GUIDE 1130 THRU 1133 1160 THRU 11639 eee 24 REMOVAL INSTALLATION AND ADJUSTMENTT L 31 PARTS GENERAL 1100 SERIES ge hd S 50 BLOW UP GENERAL J3400 SERIES fu nere iie asas anu 51 PARTS CONTROL COMPARTMENT FRONT 1100 1106 1130 1136 1150 1151 1160 1163 52 BLOW UP CONTROL COMPARTMENT FRONT 1100 1106 1130 1136 1150 1151 1160 1163 53 PARTS CONTROL COMPARTMENT FRONT 16117 7 ener 54 BLOW UP CONTROL COMPARTMENT FRONT 1116 17 55 PARTS CONTROL COMPARTMENT REAR 1100 1106 1130 1136 1150 1151 S N 2011373 amp BELOW 1160 1163 S N 2011978 amp BELOW 5 Sp a Aba n e ette p E e 56 BLOW UP CONTROL COMPARTMENT REAR 1100 1106 1130 1136 1150 1151 S N 2011373 amp BELOW 1160 1163 S N 2011978 amp 0 57 PARTS CONTROL COMPARTMENT REAR 1130 1136 1150 1151 S N2011383 AND ABOVE 1160 1163 S N 30119 8 AND 2 uN cete aa Hte de dede vida dl deae 58 BLOW UP CONTROL COMPARTMENT REAR 1130 1136 1150 1151 S N2011383 AND ABOVE 1160 1163 S N 3011978 AND ABOVE dnte e a redo Au eau 59 PARTS CONT
17. 3 only White conductor is dedicated neutral Green conductor is ground MAIN FAN CIRCUIT Power is permanently supplied to the normally open contacts of the main fan relay through a 10A fuse to the normally open cool down thermostat and to the normally open main fan switch Closing the main fan switch energizes the coil of the main fan relay Its normally open contacts now close energizing the main fan motor Closing the main fan switch energizes the cooling fan the time temp transformer the heat and conveyor switches HEATER CIRCUIT Closing the Heater Switch provides power through the normally open Air Pressure Switch through the 3 Amp Fuse to the Temperature Control Board and to the Heater Lamp TEMPERATURE CONTROL CONVEYOR DRIVE Closing the Heat Switch supplies 120 VAC to the Electronic Temperature Control The 2 5K ohm Potentiometer is adjusted to achieve the desired temperature The Thermocouple will provide varying millivolts to the Temperature Control The temperature control board then supplies 120 VAC to the coil of the Contactor at intermittent intervals to maintain the desired temperature NOTE Units with Serial Number prior to 2000782 were equipped with a Fenwall Temperature Control and used a Temperature Control Potentiometer rated at 5K ohms Closing the Conveyor Switch supplies 120 VAC to the DC Motor Control Board at terminals L1 and L2 A C volts are converted to DC volts and are supplied to t
18. Check for main fan operation If it is not operating refer to Oven fan will not run Heat Switch With switch on check for 120 VAC on both terminals to neutral Replace if defective Air Pressure Switch This normally open switch should close when the main fan is activated Adjust if necessary Refer to page 23 Replace if defective Fuse 3 Amp Check replace if necessary Fuseholder Check replace if necessary Temperature Control Check for 120 VAC supply at terminal 11 to neutral on temperature control If no voltage is present trace wiring back to 3 amp fuse Turn the temperature adjustment knob to maximum temperature position and check for 120 VAC at the load terminal 9 and neutral If 120 VAC is present and unit is not heating refer to Mercury Contactor for next check If 120 VAC is not present proceed Thermocouple Probe Temperature Control Potentiometer WITH POWER ON AND THERMOCOUPLE LEADS ATTACHED TO THE TEMPERATURE CONTROL BOARD measure D C millivolt output of these leads Refer to thermocouple chart on page 36 for proper readings If these readings are not achieved replace thermocouple WITH POWER OFF remove the potentiometer leads from the temperature control board and measure ohms from black to white leads The reading should be from approximately 0 to 2 5k ohms as the dial of the potentiometer is turned throughout its full rotation From black to red leads the readi
19. Cordset R 353014 Ground Lug S 369331 Finger Guard T 369013 Fuse 3 Amp U 369012 Fuse Holder V 369166 Fuse 10 Amp W 369129 Fuse Holder X 369538 Strain Relief Y 369537 Power Cord Z 369137 Mini Breaker 0 2 Amp AA 369190 Conveyor Coupling Complete BB 369512 Sleeve Only Coupling CC 369269 Ball Plunger DD 369268 Set Screw Impinger Il 1100 Series Service Manual Domestic BLOW UP CONTROL COMPARTMENT REAR 1116 1117 S N 2000200 TO 2011383 Impinger II 1100 Series Service Manual Domestic PARTS CONTROL COMPARTMENT REAR 1116 1117 S N 2011383 amp ABOVE LETTER P N DESCRIPTION A 369682 Back Cover Assembly B 369901 Manifold Assembly Burner C 369398 Solenoid Valve D 369566 Orifice Main Burner Natural 369524 Orifice Main Burner L P 369552 Hot Surface Igniter F 369263 Gas Valve Natural LP G 369556 Bypass Orifice Natural 369557 Bypass Orifice L P H Bypass Tube Assembly 369561 Model 1116 369562 Model 1117 369559 90 Degree Connector J 369568 Venturi Tube Natural 369938 Venturi Tube L P K 369401 Air Shutter Assembly L 369366 Burner Blower M 369124 Cooling Fan N 369331 Finger Guard 357067 Thermostat Hi Limit P 369192 Capacitor Q 369537 Power Cord R 369538 Strain Relief 369129 Holder 369166 Fuse 10 Amp T 369012 Fuse Holder 369013 Fuse 3 Amp U 353014 Ground
20. F 22596 prog VAM Sarda Annona turd u 1 UNNE 10 003 eu det moret 0990002 eq ru URE qi sin TVA pti YINYOJNVYL UT 11 INU gt LI SAHO 29 WALINCUNILOG di 38594 BOLSAKIKL HL 33an029C u341 IL VILMOHIVL 1 LIS 147450 HOLUMS S 49 5 BOAJANQO HIDLMS 18 1505 OWliY34 HOLMS TS 1555 NY4NIYM HOLMS 13 1540 AY3H H3WHD3SNYUL ania HO 100 N3389 400 9109 106 Y3AUS M3CO2N3 v u40 bCiCmsv3D MY 4 WOLOM VOICA ASU Sava 10 amt 440212 VOAZANC9 any pSru 1012412 s3L VIN amv asnu emvv asna ony 72574 SVOUANCD CNT KOLON NY 4 S YW IONA BOLCA NV j NVE amy 04 3573 363iwajlan3i ChE ICHNOS TICCA A Ore 9011 1200 906 81838273 30d 200191902 1 Ob SAHO 9 WRLINCUNLCE 2 0 CHVOM ONINOO t 3 WINYIUG LI Tta2 NY 4 NM ADLE GL AI ALATI LVISONHIKL NMOG 1002 N3AQ IVISONUJHL 35053354 HOLMS 12 42 23 a2 gt ug Sav Impinger Il 1100 Series Service Manual Domestic SCHEMATIC 1102 1103 011 pue ZOLL STSGOW ui3mdOd5H Yd WO 100 N3389 100 0305 109 HAVS 213 t Impinger II 1100 Series Service
21. Lug V 369603 Stepper Motor Assembly See Page 67 for Breakdown 369268 Set Screw X 369664 Sleeve Only Conveyor Drive Coupling Y 369611 Coupling Conveyor Drive Complete Z 369269 Ball Plunger Only Impinger Il 1100 Series Service Manual Domestic BLOW UP CONTROL COMPARTMENT REAR 1116 1117 S N 2011383 amp ABOVE Impinger II 1100 Series Service Manual Domestic 65 66 PARTS OVEN BACK ASSEMBLY 1100 SERIES LETTER P N DESCRIPTION A 369182 Fan B 369899 Shroud Fan C 369655 Stand Off D 369560 Heating Element 200V Orange 369183 Heating Element 208V Red 369521 Heating Element 220V Yellow 369184 Heating Element 240V Blue E 369549 Rear Wall Electric Oven 369976 Rear Wall Gas Oven F 369581 Motor Support Assembly G 369181 Motor Main Fan 208 240V 60HZ 369196 Motor Main Fan 240V 50 HZ 369539 Motor Main Fan 120V 60 HZ H 369695 Clamp Bracket 369033 Clamp Motor J 369674 Rear Cover Assembly Electric Ovens S N 2011383 and Below 370049 Rear Cover Assembly All Ovens S N 2017384 to 2019884 369681 Rear Cover Assembly All Ovens S N 2019885 and Above 369540 Rear Cover Assembly Model 1116 1117 S N 2011383 and below 369675 Rear Cover Assembly Model 1152 1158 S N 2011383 and Below K 369979 High Limit Bracket L 369227 Catch Spring M 369541 Thermocouple Thermistor Bracket Impinger Il 1100 Series Service Manual Domestic BLOW U
22. Remove conveyor Remove control compartment covers Remove 2 screws from holding bracket located in upper rear of the control compartment Remove the 2 leads and remove thermostat Reassemble in reverse order RELAY DPST OL Ol OO NS Shut off power at main breaker Remove conveyor Remove front control compartment cover Remove leads and mark for reassembly Loosen mounting screws and remove Reassemble in reverse order THERMOSHETAT COOLING FAN 32 OQ gro Shut off power at main breaker Remove conveyor Remove front control compartment cover Remove lead wires and mark for reassembly Remove 2 screws and remove thermostat Reassemble in reverse order Impinger Il 1100 Series Service Manual Domestic MOTOR BURNER BLOWER This unit comes equipped to be used for other models of ovens For use on the Impinger II Series the mating plug with the loose wires may be discarded TO REMOVE BLOWER MOTOR DORO ON Shut off power at main breaker Remove conveyor Remove control compartment covers Disconnect the plug on blower motor Plastic locks on side of plug need to be depressed Remove three screws holding blower horn to burner Remove air shutter from old unit and install on new unit If air shutter of old unit is damaged or lost replace with new air shutter 369401 Reassemble in reverse order Adjust air shutter opening if necessary Set air shutter at 50 open and adjust to get a blue flame with
23. holder is holding the sensor bulb firmly If the sensor is not held firmly compress the wire form slightly to increase pressure To test the thermistor probe refer to the following chart and instructions OVEN TEMPERATURE 3007 325 350 400 425 450 50 550 oms 182 158 102 62 48 38 24 16 Place test pyrometer thermocouple and preheat oven as specified under temperature calibration on page 43 Disconnect the thermistor probe from terminals 9 and 10 and measure the resistance across the 2 yellow leads Refer to the above chart to determine if probe is producing the proper resistance EXAMPLE The probe resistance at 500 F 260 C should be 24 ohms SWITCH DISPLAY SET OX gras o Shut off power at main breaker Remove conveyor Remove front control compartment cover Disconnect wires from time temp display terminals 5 and 6 Pull off black operating knob and remove hex mounting nut Reassemble in reverse order Impinger II 1100 Series Service Manual Domestic 45 PROCEDURE FOR USE OF TIME TEMP SIMULATOR NOTE For displays with Thermocouple simulator will not work This is a test device used to check the Time Temp Display Procedure for use Check incoming power to display at following terminals a Terminal 1 to 3 should have approximately 12 5 to 15 VAC b Terminal 2 to 1 should be 1 2 of the reading from 1 to 3 c Terminal 2 to 3 should also be 1 2 of the reading fr
24. only Conveyor Drive Coupling 369269 Ball Plunger P 369611 Coupling Conveyor Drive Complete Q 357067 Thermostat Hi Limit All Models except 1150 369583 Thermostat Hi Limit Model 1150 only R 369192 Capacitor 7 5 MFD S 353014 Ground Lug T 369682 Back Cover Assembly Impinger Il 1100 Series Service Manual Domestic BLOW UP CONTROL COMPARTMENT REAR 1130 1136 1150 1151 S N2011383 AND ABOVE 1160 1163 S N 3011978 AND ABOVE Impinger Il 1100 Series Service Manual Domestic 61 62 PARTS CONTROL COMPARTMENT REAR 1116 1117 S N 2000200 TO 2011383 LETTER P N DESCRIPTION A See Gear Motor Assembly on Page 67 B 369192 Capacitor C 369559 90 Degree Connector D Bypass Tube Assembly 369561 Model 1116 includes 369559 and 369556 369562 Model 1117 includes 369559 and 369557 E 369398 Solenoid Valve G 370143 Back Cover Assembly H 369567 Manifold Assembly Burner 369552 Hot Surface Igniter J 369556 Orifice Main Burner Natural 369524 Orifice Main Burner LP K 369568 Venturi Tube Natural 369938 Venturi Tube LP L 369556 Bypass Orifice Natural 369557 Bypass Orifice LP M 369529 Model 1116 using Honeywell Gas Valve 369263 Johnson Gas Valve Nat LP N 369401 Air Shutter Assembly 369366 Blower 369533 Thermostat Control Box High Limit Q 369124 Cooling Fan 369535 Cooling Fan
25. s the motor overheats and then cools this will cause the units to cycle on and off intermittently This may be caused by improper ventilation or preventative maintenance Also most of the problems listed under Oven will not heat can cause intermittent failure Conveyor Will Not Run Conveyor Switch Check for continuity between switch terminals 3 Amp Fuse Check replace as needed Fuseholder Check replace as needed S N 2011383 and above 1130 through 1133 S N 2011978 and above Models 1160 through 1163 Refer to Page 29 Speed Adjustment Potentiometer This is a 0 to 5 K ohm 10 turn potentiometer WITH POWER OFF Remove the red black and white pot leads from the motor control board at terminals P1 P2 and P3 With a digital multimeter check the ohm reading across the red lead P3 to the black lead P1 This reading should be 5 K ohms 5 as the pot is rotated from low to high Place the meter leads on the red lead P3 and on the white lead P2 Rotating the pot slowly from low to high the meter reading should show an even transition from 0 to 5 K ohms 5 There should be no dead or open spots through out the 10 turns of the pot Check all three leads to ground There should be no continuity to ground If any of the above checks fail replace the pot DC Motor Control Board Check for 120 VAC input to the control board at terminals L1 and L2 If not present check the conveyor switch and
26. should be approximately 2 5k ohms constant throughout the full rotation of the ial If these readings are not achieved replace potentiometer If the thermocouple probe and the control potentiometer checks good then the problem is usually ith the temperature control board Mercury Contactor Check for 120 VAC to the contactor coil If voltage is present and contact will not activate replace the contactor Also check each contactor for proper high voltage input and output Heater Elements Check the Amp draw on each leg for proper load Check the specification plate for rating information If the Amp draw is low or high check the individual elements for opens shorts and proper resistance WITH POWER OFF check resistance of the elements remove all leads from the elements and use an accurate digital VOM The element resistance should be as follows 208V 27 ohms approximately 240V 36 ohms approximately Oven heats with switch off Mercury Contactor The mercury contactor has probably malfunctioned in the closed position If there is no voltage to the loperating coil but there is high voltage at the contactor output replace the mercury contactor Intermittent Heating Thermal Overload of motor main fan motor is equipped with internal thermal protection and will cease to operate if overheating occurs As the motor overheats and then cools this will cause the ovens to cycle on and off in
27. tighten 9 Reassemble in reverse order FAN SPIDER NOTE MEASUREMENT MUST BE i MADE FROM CONE TO FAN SPIDER 11 2 INCH FAN HUB CONE Impinger II 1100 Series Service Manual Domestic 31 RELAY DPST QUOI dn Shut off power at main breaker Remove conveyor Remove control compartment covers Remove leads from relay and mark for reassembly Remove mounting screws and lift out relay Reassemble in reverse order TIME DELAY 20 MINUTE OV Or de NOES Shut off power at main breaker Remove conveyor Remove front control compartment cover Unplug all wires and mark for replacement Remove center mounting screw Reassemble in reverse order NOTE Do not over tighten the mounting screw as this may damage the internal potted electronic components COOLING FAN Oo ON Eo ON Shut off power at main breaker Remove conveyor Remove front control compartment cover Remove 4 screws from fan frame Remove fan and unplug female cord receptacle Reassemble in reverse order NOTE All current models have 2 of these cooling fans The second cooling fan is located in the rear of the rear control compartment On older models of the 1116 1117 1152 through 1158 the fan was attached to a metal box on rear of oven Metal box was removed first Newer ovens have fan mounted on inside of oven back and are removed from inside THERMOSTAT COOL DOWN Model 1100 1106 only PARODIE Shut off power at main breaker
28. wiring back to 3 amp fuse and then back to power source if necessary If 120 VAC is present at L1 and L2 check the VDC output at terminals A and A If a DC voltage is not present check the 4 amp and the 1 amp fuses on thecontrol board If 120 VAC is present at terminals L1 and L2 but DC Voltage is not present at A and A providing the fuses are good replace the board If DC voltage is present at A and A but motor does not run check gear motor as follows Conveyor Gear Motor If DC voltage is present at A and A and the motor does nol run first check the mini breaker and then the conveyor As described below under conveyor WITH POWER OFF Check the leads to the motor for evidence of any shorts or opens and each lead to ground Remove dust cover from the top of the motor and rotate motor shaft to determine if there is a locked rotor or a locked gear box use care so encoder disc is not damaged If the motor fails the above tests replace motor Conveyor speed 26 Conveyor Power Supply Check for any mechanical misalignment or improper adjustment Also check for worn bearings The Installation and Operations Manual shows proper conveyor belt position A conveyor belt that is too tight will contribute to excessive load bearing wear and wearing of slider bed rods Check power supply at the DC control board for the Impinger Il 1100 Series Service Manual Domestic varying or intermittent 12
29. 0 VAC at board terminals L1 and L2 If voltage is not present and steady check the main circuit breakers and call power company if necessary S N 21011383 and above Models 1130 through 1133 2011978 and above Models 1160 through 1163 Refer to page 29 Tach generator and DC Motor Control Board WITH POWER OFF Remove the leads from terminals T1 and T2 Place the test leads of a digital test meter on the tach leads turn power on and the meter reading should be approximately 20 to 25 VDG This reading is normally steady within 0 2 to 0 3 VDC If this reading is not within required VDG place the test meter probes on terminals A and A The meter reading should be approximately 150 to 160 VDC and steady within approximately 4 to 5 VDG If the tach voltage is unsteady and the board output is steady check the coupling for loose set screws or any type of damage If the coupling checks good the tach is usually bad If the board voltage output is unsteady beyond limits then the board is probably bad Always check the speed pot Be sure it is okay before changing a board or tach 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 Readjustment should always be attempted at least once before replacement See procedure for board adjustment on page 41 DC Gearmotor Time Temp Display 12 6 VAC Power Supply inoperative S N 201
30. 08 WHLNOS 17 5049 li BOAJANOD 16 4 Ej 1939 NJAO HOLIMG ES YOJOK NYJ 3502 2274 JDAJANOD 21195 25 704 92 Sarasa 310012373 213 NYa N3AD H21lMS 15 7 3557 194 80439402 4 At1J834 BOLIKINDI 7081407 HDAJANCI 2 fan WOO 7002 14915 NING AYTSN 2 KOLIVANY sig 8 7 VOLON AYJ NJAO AV G s L 6534 41V mann S 65 05 01068181610 1N34318 9NLLV34 1108151510 1 5 2 9 g 9 2 Er 69 09 22 0136 9 5 3 15 2 NS 53 13 Impinger II 1100 Series Service Manual Domestic SCHEMATIC 1160 1161 S N 2011978 amp ABOVE 1911 pue 0911 STIGON WN INNI NOLLNBLULSLO MOATANOD MIMMDSENVEL duk GHIL IMIL UIKUOISNYEL LUK GAR BIL LL A18W355 109 3NOLvH3dA3l dl 310N14 OG AV339 EWIL OL f 21 10917 HSTH 71415069381 ZL MOSZ 092 OZ SMILVIN AVX Et 09 1009 8 LUYIS NJAQ AVII 25 YOLCH Nyd N3AQ AVIS 18 3043ANQ SOLON 9817022 WOLOM bk ZH NJAO MOLOM IW LINDYH EO1Y3ION 831Y34 HYI 1 805835 173333 TVH SH 624 9 AQOSL 6134912 OM LYIH H VE 7031502 3uNLYU3dWIL 3504 vi YE 7081402 YOAZANOD 3603 Ed YOL YOLOH INA 23 13 WRINOD 3uCLYH24H3 21N08 2313 213 5 104 0 2 42 7091903 YOAZIANOI 22 OW S L wollovdvo 19
31. 120 VAC 10 Turn the speed control pot on oven control panel to its maximum speed setting Adjust the MAX pot so the voltmeter indicates 15 8 to 15 9 VDC Turn the speed control pot to its minimum speed setting Adjust the MIN pot so the volt meter indicates 0 7 to 0 9 VDC Reset the speed control pot to its maximum speed setting and check if voltage is still at 15 8 to 15 9 VDC Readjust if necessary Reset the speed control pot to its minimum speed setting and check if voltage is still at 0 7 to 0 9 VDG Readjust if necessary If readjustment of either the MAX or MIN pot was necessary the opposite must always be checked until both MIN and MAX are in proper adjustment Measure the speed of the conveyor and adjust the time temp display if necessary Seal pots with Glyptol or nail polish NOTE Occasionally a new board Style 2 and 3 only is so far out of adjustment that you will be unable to adjust to the correct voltage To correct turn both the MAX and MIN pots 10 turns in either direction and then 5 turns in opposite direction This will center the pots and allow them to be calibrated If after this procedure the board will not adjust it is probably defective REVERSAL OF CONVEYOR BELT D G Motor All ovens leaving our plant are wired to operate conveyors from left to right To reverse conveyor direction use the following procedure Turn off power and remove conveyor Remove front cont
32. 1383 and above Models 1130 through 1133 Refer to Page 29 If the problem seems to 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 on page 26 under possible cause listing Conveyor gear motor Measure the transformer primary for a nominal 120 VAC input Measure the secondary voltage output which will be 12 5 to 15 VAC normally Recheck secondary output at rear of Time Temp Display Terminals 1 to 3 should read 12 5 to 15 VAC Terminals 1 to 2 and 2 to 3 should be 1 2 of the reading across 1 to 3 If you do not get the above secondary readings replace the transformer If 120 VAC primary voltage is not available refer to the schematic and trace circuit for incoming power failure The older units have a 4 amp ambient fuse in each red secondary lead These may be jumpered to determine if they are burnt out or intermittent NOTE Time Temp displays use two types of temperature sensors thermistor probe 2 yellow wires thermocouple probe 1 red wire and 1 white wire Temp Display out or inaccurate Insert the thermocouple of your pyrometer into a finger hole in the top center of the oven Be sure the tip of the thermocouple is not touching metal The pyrometer will indicate oven temperature From S N 2011383 and up Models 1130 through 1133 S N 2011978 and up Models1160 through1163 Refer to Page 29 Thermistor Probe
33. 1820 and Below Model 1160 1163 S N 2011977 and Below 369611 Conveyor Drive Coupling Model 1116 1117 S N 2011383 and Above Model 1130 1151 S N 2011383 and Above Model 1152 1158 S N 2011821 and Above Model 1160 1163 S N 2011978 and Above B 369512 Coupling Center Model 1100 1106 All Model 1116 1117 S N 2011382 and Below Model 1130 1151 S N 2011382 and Below Model 1152 1158 S N 2011820 and Below Model 1160 1163 S N 2011977 and Below 369664 Coupling Center Model 1116 1117 S N 2011383 and Above Model 1130 1151 S N 2011383 and Above Model 1152 1158 S N 2011821 and Above Model 1160 1163 S N 2011978 and Above C 369269 Ball Plunger D 369268 Set Screw E 369223 Crumb Pan Right F 369224 Crumb Pan Left G 369666 Conveyor Frame Assembly H 369226 Pan Stop J 369516 Conveyor Bearing K 369514 Idler Shaft b 369515 Sprocket 369978 Set Screw M 369238 Drive Shaft N 369513 Hinge 369510 Door Assembly Includes N P amp P 370016 Impinger Nameplate Q 369501 Door Latch amp Catch R 1123D Door with Window Includes N P amp S 369927 Window Frame Top T 369925 Glass Access Window U 369926 Window Frame Bottom W 369929 Retainer Window X 369165 Splice Clips Y 369194 Conveyor Belt Complete 369394 Conveyor Belt 1 Foot Section 70 Impinger Il 1100 Series Service Manual Domestic BLOW UP CONVEYOR amp DOOR 1100 SERIES Impinger II 1100 Series Service Manual Domestic 71 FUSE CHART 5 FUSES el 1
34. 30 1131 1132 1133 1134 1135 1136 1151 1160 1161 1162 1163 369127 For Models 1100 1101 1102 1103 1104 1105 1106 N 369832 Back Cover 369583 Thermostat High Limit For Model 1150 P 369772 Terminal Block Q 370062 Electrical Box R 370063 Cover 5 Fuses See Chart On Page 70 T Fuse Holders See Chart On Page 70 U 369007 Thermostat Cool Down For Models 1100 1101 1102 1103 1104 1105 1106 Impinger Il 1100 Series Service Manual Domestic BLOW UP CONTROL COMPARTMENT REAR 1100 1106 1130 1136 1150 1151 S N 2011373 amp BELOW 1160 1163 S N 2011978 amp BELOW Impinger II 1100 Series Service Manual Domestic 59 60 PARTS CONTROL COMPARTMENT REAR 1130 1136 1150 1151 S N2011383 AND ABOVE 1160 1163 S N 3011978 AND ABOVE LETTER P N DESCRIPTION A Terminal Block End 369186 For 1 Phase Models 369188 For 3 Phase Models B Terminal Block 369185 1 Phase Models 3 Required 369187 3 Phase Models 4 Required C Contactor 369120 1 Phase 2 Pole 369178 3 Phase 3 Pole D 354258 Transformer For Models 1134 1135 1136 1150 354257 Transformer For Model 1151 Only E 369124 Cooling Fan F 369331 Finger Guard G 370062 Electrical Box H 370063 Cover Fuses See Chart On Page 70 J Fuse Holders See Chart On Page 70 K 369200 Relay L 369603 Conveyor Motor Assy See Page 67 for Breakdown M 369268 Set Screw N 369664 Sleeve
35. AMP 10 AMP 10 AMP MODELS 369013 BOGEN ieee mm ES 71 gt eso IP ie 5 1 ere Eee me 1 ef 11 Kasse Ceo s ee FETE wa Pa eee ms O 00 20 i Em ee 1134 2 1 1 2 1 E BEES MU 1134 1 1 1135 1136 1136 1150 1150 pe Bp MEN NEN O Loe 1151 BELOW S N 2003880 1 be ot S S mE lt 1135 BELOW S N 2003880 1151 2 pp ox EV 2 2 72 Impinger Il 1100 Series Service Manual Domestic This page intentionally left blank Impinger II 1100 Series Service Manual Domestic 73 74 This page intentionally left blank Impinger Il 1100 Series Service Manual Domestic This page intentionally left blank Impinger II 1100 Series Service Manual Domestic 75 L 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 9511 www lincolnfp com d k Enodis CERTIFIED SERVICE AND PARTS
36. Check for continuity between switch terminals Check for continuity at relay coil and visually check for pull in of contacts Check for 120 VAC atterminal 1 to neutral on 20 minute Time Delay Relay If no voltage is present trace wiring back to 10A fuse If voltage is present at terminal 1 check for 120 VAC at terminal 2 to neutral If no voltage is present and oven start relay is closed replace Time Delay Main Fan Relay Check for 120 VAC to coil of the Relay If no voltage is present trace wiring back to 20 minute Time Delay Relay If voltage is present check to insure contacts are closing No main fan cool down Main Fan Motor 20 Minute Time Delay Check for opens shorts or grounds WITH POWER OFF Turn fan blade to check for locked rotor Capacitor Check for opens shorts or grounds Check for 120 VAC at terminal 42 to neutral while oven is on Turn off the main fan switch 120 VAC should continue to be present for 20 minutes If voltage is not present for approx 20 minutes replace the timer Oven Fan Relay Check if relay is operating and that the contacts remain closed during the 20 minute cool down Main fan runs after 20 minute cool down Oven Start Relay Contacts should open when main fan switch is turned off 20 Minute Time Delay 120 VAC at terminal 42 should discontinue approximately 20 minutes after main fan is switched off If the oven start relay contacts are open an
37. ELOW amp 1160 1161 S N 2011978 amp BELOW LOLL pue 0911 FELL DELL ST3QON DVA 971 UINYOSENVUL AVIS 02 1 VIN A 292 dt 02 238 VETO U313NOUN21Od o 181 09 1 VO 099 LLON KOLS INNAN OG ANTIQ M330082Y1 WUONIRNSU ueansnipe put 20fte4uc9 Q 0 400299 138 AV dS HOLMS 020496 Led ope au 1 vnd 92486 uus 1343 U043ANCO HOLMS PLPC EI YIM 0 1002 ATEM 1849 DMU Y3H HOLMS Vu peddinbe Kupu 60 tue MONK put 0980005 equ nu Pues qu nrc 154 NY NIVA NY4 OMNOQD AYTEN 10a U3ATIS 5 83 1 N 4 AY 130 oe 4 50 u a u 70U1NO2 ONV HOLOM NY4 NIYIN OG 73904 dI 21394 MOLOW NY 4 ADLE QIM FU MOLIS Impinger Il 1100 Series Service Manual Domestic 12 SCHEMATIC 1130 1131 S N 2011384 amp ABOVE LELL OELL ST3GON SY30HNN 3518 8 4OABANOD WOLOM EM 0135503 YJHYOJISNYYL Z 5NIT000 90 06 gt 43172411 MX Nyd HOLOM IW dW3l 3WIL 1 1 1394 M A KISSV 104 211992482 41 tO_v3ICNI UJLVIH dHY1 1 S3ifW W OZ AY1JG QI WOSN3S 193333 TM Sh 3140004834 U 624 9 203 SIN3H313 9411734 H LINE 4914 17 509999 Ci guniYvM3dM3l 3573 p 917002 X
38. EMP DISPLAY The secondary output of the Transformer is supplied to terminals 1 2 and 3 of the Time Temp Display The secondary output of Transformer is nominally 12 5 to 15 VAC with a center tap The voltage from center tap to each leg is 1 2 the secondary voltage The speed side of the Time Temp Display uses a slotted disc S N 2011383 and above on cemented to tach coupling to break the infra red light beam Models 1130 through 1133 of the optical Impinger Il 1100 Series Service Manual Domestic encoder mounted on gear motor producing electrical pulses that are transmitted to the display The display converts these pulses into a read out of minutes and seconds The temperature portion of the Time Temp Display uses a thermistor probe to sense oven temperature The thermistor outputs a resistance proportional to the oven temperature This resistance is then converted by the display into a temperature reading AUTOMATIC COOL DOWN When this oven is started the time delay relay timing circuit is enabled permitting the oven fans to run for approximately 20 minutes after the oven is shut off to cool the oven The Time Delay Relay will keep the coil of Relay closed maintaining operation of main fan and Cooling Fan Motors Impinger II 1100 Series Service Manual Domestic SCHEMATIC 1100 1101 LOLL pue 0011 STSGOW u miza ra UNUS n DUE UOTE 84 909 104 9044 UNI ON RO mau
39. ETER Black to 4 To T T display White to 7 TIME TEMP Impinger II 1100 Series Service Manual Domestic 47 1 With power off the five 5 dip switches located on the conveyor control see drawing above should be set as below DIP SWITCHES FOR 50 SEC TO 30 MIN TIMES CONTROL 1 2 3 4 5 SWITCH POSITION OFF OFF ON OFF OFF DIP SWITCHES FOR 23 SEC TO 30 MIN TIMES CONTROL 1 2 3 4 5 SWITCH POSITION OFF ON OFF OFF OFF 1 With power off the ten 10 dip switches located on rear of Time Temp Display see drawing on page 43 should be set as below NOTE For time temp displays using a thermister 2 yellow wires on Terminals 9 amp 10 set the dip switches as follows FOR 50 SEC TO 30 MIN CONVEYOR TIMES DISPLAY 1 2 3 4 5 6 7 8 9 10 SWITCH POSITION OFF 2 ON ON OFF OFF ON OFF ON For time temp displays using a thermocouple red wire on 9 and white wire on 10 set the dip switches as follows DISPLAY 1 2 3 4 5 6 7 8 9 10 SWITCH POSITION OFF OFF ON OFF OFF ON ON OFF ON Off for F On for C FOR 23 SEC TO 30 MIN CONVEYOR TIMES NOTE For time temp displays using a thermistor 2 yellow wires on Terminals 9 amp 10 set the dip switches as follows DISPLAY 1 2 3 4 5 6 7 8 9 10 SWITCH POSITION O
40. FF i i ON ON OFF ON OFF ON ON SWITCH 2 OFF FOR 60HZ ON FOR 50HZ SWITCH 3 OFF FOR F ON FOR For time temp displays using a thermocouple red wire on 9 and white wire on 10 set the dip switches as follows DISPLAY 1 2 3 4 5 6 7 8 9 10 SWITCH POSITION OFF OFF OFF OFF ON ON OFF ON Off for F On for C 1 With conveyor running set conveyor speed control so Time Temp Display indicates 5 00 minutes Place a pan on the conveyor measure STOPWATCH the time SPEED OF PAN of the leading edge in to leading edge out of oven Turn the time adjustment pot on the rear of the Time Temp Display so display agrees with time measured by the stop watch 2 Turn conveyor speed control fully counterclockwise and adjust the stepper control maximum speed pot refer to drawing Pg D 19 so the display indicates 50 seconds 3 Turn conveyor speed control fully clockwise and adjust the stepper control minimum speed pot so the display indicates 30 minutes NOTE Repeat 4 and 5 to be sure settings are accurate 48 Impinger Il 1100 Series Service Manual Domestic 4 Turn power off and set 1 dip switch to its ON OFF other position and verify that the conveyor reverses direction when power is applied Set conveyor travel direction as customer requests CAUTION ALWAYS REMOVE POWER BEFORE CHANGING CONVEYOR DIRECTION TO REVERSE CONVEYOR DIRECTION ON STEPPER DRIVE SYSTEM
41. Manual Domestic SCHEMATIC 1116 1117 S N 2011383 amp BELOW LLL PUB 9111 STIAON vanen VOULNGO t 3904 OVA FE S3WWOdSNYM 133 AVIS HOLMS rS OMULWEH an 912904 U3NUOZSNYM LUX 1849 WOAJANOD HILS CS deny 3904 C4 SVD 47 80 1Yuru YN SYD MOSNHOC 1849 WIANHNE HILIMS 53 avy C4 SYD JA TVA SYD TIIMAINOM KLM 1940 WY4NNN HOLMS i WOLOM NYA ANY OL PSU bal 710818603 GML 3 gt ZA WV WIV 1540 10 MNA OMYOR TOHLNOD 312 SYD 47 SYD NOSNHOF HLM 8300983 WUJ 30 ipit 20 Lua TYDNSMLNED HOLMS 552 SYD TWUMLYN ZATVA SVD NOSNHOP HLIM WOLOMUYID 9M Un HOLOM 20 1 54 HOLMS 182 SYO TYUNLVN RATYA SYD THAM NOH MINANG UOION MA 01 SHO WOO VILIMOUNELOG dd GIONIVOS IA NY4 ON 1002 WOJON WOLOR Yd 0404 22 MIUI AY MS NY4 ONIICOS WOLON IN Co VIA unodia 42 XS70 H1L2MOUMiiOe di WOLON LN MOLOW HVA GLE CUM SL WOLIOYdYO 3 UOLSINN3H HL LOT 1 ALAYI N2AO LYLSOMMIHL 619 TNO 21 JOMLNOD NOUO A HOM XO LTLSOMHIHL Ain OG A720 OG MOLINO 2 Y 4405 10H LYLSORRIZHL Le ut POT IVA 92 ty OVA zu 1 pr xc
42. P OVEN BACK ASSEMBLY 1100 SERIES Impinger II 1100 Series Service Manual Domestic 67 68 PARTS GEARMOTOR ASSEMBLY 1100 SERIES LETTER P N DESCRIPTION A 369519 Motor DC Conveyor 369384 Motor Brush B 369294 4 Lock Washer C 369296 Screw 4 40 x 1 4 D 369290 Optical Encoder Assembly E 369151 Coupling And Encoder Disc 050 Allen Wrench Included F 369146 Hex Nut 4 40 G 369294 4 Lock Washer H 369292 Bracket Tach Generator 369297 Screw 6 32 x 1 4 J 369156 6 Lock Washer K 369293 Screw 4 40 x 3 8 L NLA Tach Generator Replace with 370216 M 369298 Dust Cover N 369299 Bushing 350247 Screw 10 32 x 3 8 369295 10 Lock Washer Q 369603 Stepper Motor Gearbox Assembly Includes R S T R 369737 Hall Effect Sensor S 369658 Screw 8 32 x 1 4 T 369736 Magnet 2 Pole Impinger Il 1100 Series Service Manual Domestic BLOW UP GEARMOTOR ASSEMBLY 1100 SERIES STEPPER GEARMOTOR ASSEMBLY ENCODER DISC COUPLING AND D C GEARMOTOR ASSEMBLY TACH GENERATOR TACH BRACKET MOTOR END Impinger II 1100 Series Service Manual Domestic 69 PARTS CONVEYOR amp DOOR 1100 SERIES LETTER P N DESCRIPTION A 369190 Conveyor Drive Coupling Model 1100 1106 All Model 1116 1117 S N 2011382 and Below Model 1130 1151 S N 2011382 and Below Model 1152 1158 S N 201
43. PASS 1 2 Loosen flare nut and remove bypass orifice Reassemble in reverse order THERMOSTAT HIGH LIMIT OVEN CAVITY DA BON Shut off power at main breaker Remove conveyor Remove control compartment covers Remove screws from bracket Remove the mounting nut from the threaded shaft Remove the capillary tube bulb from the wire holder in the oven heating chamber NOTE Access to the capillary tube bulb is through the front door after removing the conveyor and fingers Insert the new capillary tube bulb through the tube into the oven cavity and into the wire form holder NOTE The wire form must hold the bulb firmly If it does not compress the wire form slightly to increase the pressure Reassemble in reverse order Push the reset button Test system for proper operation THERMOSTAT HIGH LIMIT 38 9rd orm no Shut off power at main breaker Remove conveyor Remove control compartment covers Remove 2 screws from holding bracket located in upper rear of the control compartment Remove the 2 leads and remove thermostat NOTE Push reset button Insure that aluminum probe and teflon washer are in place if applicable then reassemble in reverse order Insure that thermostat is in firm contact with the aluminum probe if applicable Impinger Il 1100 Series Service Manual Domestic LAMP PILOT BURNER NO OLEG cr LENS PILOT LAMP Shut off power at main breaker Remove conveyor Remove front con
44. ROL COMPARTMENT REAR 1116 1117 S N 2000200 TO 2011383 60 BLOW UP CONTROL COMPARTMENT REAR 1116 1117 S N 2000200 TO 2011383 61 PARTS CONTROL COMPARTMENT REAR 1116 1117 S N 2011383 amp ABOVE 62 BLOW UP CONTROL COMPARTMENT REAR 1116 1117 S N 2011383 amp 63 PARTS OVEN BACK ASSEMBLY 1100 5 64 BLOW UP OVEN BACK ASSEMBLY 1100 5 65 PARTS GEARMOTOR ASSEMBLY 1100 5 enne nre nnnm 66 BLOW UP GEARMOTOR ASSEMBLY 1100 5 67 PARTS CONVEYOR amp DOOR 1100 5 68 BLOW UP CONVEYOR amp DOOR 1100 5 0 69 2 Impinger Il 1100 Series Service Manual Domestic SEQUENCE OF OPERATIONS 1100 THRU 1103 MODEL 1100 ELECTRIC 120 208 VAC 60 HZ 1 PHASE MODEL 1101 ELECTRIC 120 240 VAC 60 HZ 1 PHASE MODEL 1102 ELECTRIC 120 208 VAC 60 HZ 3 PHASE MODEL 1103 ELECTRIC 120 240 VAC 60 HZ 3 PHASE POWER SUPPLY Electrical Power to be supplied to the oven by a four conductor cord set on single phase and a five conductor cord set on three phase Voltage from the black conductor to the white conductor is120 VAC Black conductor is Hot Red conductor is Hot Orange conductor is Hot Used on
45. Remove front control compartment cover Remove transformer wires and mark for replacement Remove the 2 mounting screws and replace transformer Reassemble in reverse order TIME TEMP DISPLAY ARON Shut off power at main breaker Remove conveyor Remove front control box cover Mark all leads for proper reinstallation and then remove wires from all terminals at rear of the display Remove 2 screws from top of Time Temp case holding the case to the front panel NOTE On some of the more recent Model 1100 units the time temp display may now be removed If it is not free continue Remove 3 screws from the front panel lift up the front panel and remove 2 screws from the bottom of the display case Display should now be free to remove Replace in reverse order NOTE BEFORE TURNING ON POWER SET THE DIP SWITCHES TO THE PROPER SETTING DIP SWITCH SETTING CHART 42 To identify the module measure the width of the case Type I is 5 1 8 inches wide x 4 1 2 inches deep Type Il is 5 5 8 inches wide x 4 1 2 inches deep Type I amp II have a 6 position dip switch module Type Ill has a 10 position dip switch module Type IV is 5 5 8 inches wide x 3 1 4 inches deep Type IV has adjustment pots in the center of the board THESE SWITCHES ARE FOR HERTZ SETTINGS OFF 60HZ or ON 50HZ Impinger Il 1100 Series Service Manual Domestic THESE SWITCHES ARE FOR TEMPERATURE SETTINGS OFF F or ON Impinger II 1100 Series Servic
46. SERVICE MANUAL DOMESTIC IMPINGER CONVEYOR OVENS MODEL 1100 SERIES FR h Lincoln Lincoln Foodservice Products LLC 1111 North Hadley Road Fort Wayne Indiana 46804 United States of America Phone 260 459 8200 U S Fax 888 790 8193 Intl Fax 260 436 0735 Technical Service Hot Line 800 678 9511 www lincolnfp com Enodis CERTIFIED SERVICE AND PARTS 1100svcdom REV 1 9 08 TABLE OF CONTENTS SEQUENCE OF OPERATIONS 1100 thru 1103 7 3 SEQUENCE OF OPERATIONS 1116 1117 iiic tete e etur 4 SEQUENCE OF OPERATIONS 1130 1133 amp 1160 1163 6 SGHEMATIG 1100 cie te eter de cep be o hr c 8 SCHEMATIG 1102 1103 iere arie 9 SCHEMATIC 1116 1117 S N 2011383 amp BELOW 10 SCHEMATIC 1116 1117 S N 2011384 amp ABOVE sse 11 SCHEMATIC 1130 1131 S N 2011383 amp BELOW amp 1160 1161 S N 2011978 amp BELOW 12 SCHEMATIC 1130 1131 S N 2011384 amp ABOVE sse 13 SCHEMATIC 1160 1161 S N 2011978 amp ABOVE 14 SCHEMATIC 1132 1133 S N 2011383 amp BELOW amp 1162 1163 S N 2011979 amp BELOW 15 SCHEMATIC 1132 1133 S N 2011384 amp ABOVE sse nennen 16 SCHEMATIC 1162 1163 S N 2011978 amp ABOVE
47. Shut off power at main breaker Remove conveyor Remove front control box cover Change position of dip switch 1 on stepper control board as described on page 46 Reassemble in reverse order NR ON TRANSFORMER STEPPER MOTOR CONTROL Shut off power at main breaker Remove conveyor Remove front cover Disconnect transformer wire harness Remove two 2 mounting screws Reassemble in reverse order Or Or dom HALL EFFECT SENSOR REPLACEMENT Remove two 2 mounting screws and remove sensor from conveyor motor Reinstall in reverse order NATURAL GAS 3 5 WC 8 9 cm WC 87 8 70Mbar L P GAS 25 4 cm WC 2 48kPa 24 8Mbar CITY TOWN GAS 1 4 WC 3 56 cm WC 35kPa 3 5Mbar TYPE OF GAS INCHES of CENTIMETERS of kPa Mbar WATER WATER COLUMN COLUMN AIR PRESSURE SWITCH BURNER OR OVEN CAVITY TO REPLACE AIR SWITCH Shut off power at main breaker Remove conveyor Remove rear control compartment cover Remove cover of air switch exposing adjustment screw Disconnect and mark wires for proper reassembly Remove air tube and remove switch from hanger Reinstall in reverse order making sure wires are properly attached and air tube is properly attached unblocked and aligned properly to avoid crimping JO TRONE TO CALIBRATE AIR SWITCH Impinger II 1100 Series Service Manual Domestic 49 50 1 If switch will not activate when blower pressure is supplied turn adjustment screw counter clockwise
48. When 24 VAC is supplied to the gas control valve the valves should open Check for gas pressure at the manifold tap located just before the burner If there is no pressure check the incoming gas supply to be sure all manual valves are open and flexible gas hose is properly connected If gas is present at the oven and coils of gas valve are energized the gas valve is defective When 24 VAG is supplied to the gas control valve the red burner indicator Flame will not stay lit Hot Surface Igniter Flame Sensor Six seconds after the gas valve opens ignition must occur If flame is not detected the ignition control will shutoff and lock out To reset the ignition control turn off the burner switch for 45 seconds then turn on the burner switch to retry ignition The ignition control requires a minimum of 0 8 D C microamps To check 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 flame sensor NOTE The D C micro amp test must be conducted with the oven in low flame bypass operation Turn the temperature control to the lowest setting Power Supply If there is sufficient micro amp current but the flame w
49. an occasional tip of yellow under high flame A glass view port in the burner assembly should be used to observe flame CLEANING OF THE BLOWER FAN IS NECESSARY ON A PREVENTIVE MAINTENANCE SCHEDULE See Blower Wheel Burner below BLOWER WHEEL BURNER This is part of the burner blower motor assembly TO REMOVE THE BLOWER WHEEL FOR PERIODIC CLEANING 1 2 3 4 Disconnect power and remove control compartment covers Remove air shutter held by 3 screws Loosen set screw on blower wheel hub and pull straight out Reassemble in reverse order NOTE There is no critical placement of the blower wheel on the motor shaft Just back as far as it will go and then spin the blower to be sure it is not rubbing AIR PRESSURE SWITCH OG SIO BONE Shut off power at main breaker Remove conveyor Remove front control compartment cover Remove air switch cover plate Disconnect wiring and mark for reassembly Loosen 2 screws and remove air switch Disconnect 1 4 air tube Reassemble in reverse order Turn on power and calibrate air switch as follows a Turn adjusting screw counter clockwise to full out position Turn main fan and heat switch on Turn adjusting screw clockwise until heat shuts off Turn adjusting screw counterclockwise 1 4 turn and unit should heat NOTE Test as follows e Oven must be tested in heated condition f Remove main fan fuse Main fan should shut down deactivating air switch causing heat to shut o
50. couple connections Compare actual oven temperature with the reading at the time temp display If the temperature readings match recalibrate or replace time temp display If the readings do not match replace thermocouple probe Power Supply If strange or unusual behavior is experienced such as a rolling of numbers or lock up at a given number first check for a display circuit lock up This may be caused by a voltage spike or surge in the incoming power lines To eliminate this condition remove power from the time temp display by shutting off the main fan switch for 15 seconds This should eliminate the problem If this does not solve the problem it may becoming in through the Commercial power lines Suggest that customer contact their power company for evaluation Temp display inaccurate erratic or inoperative Time Temp Display Perform the power supply check the thermistor probe check and then perform the time temp simulator test Refer to page 45 for instructions Remember when using the time temp simulator remove all leads from the back of the time temp display except the 3 power leads After completion of the test and if re installing time temp display back in the oven the dip switches must be reset for oven operation and the time temp display must be re calibrated If readings are not achieved replace display Time Display inaccurate erratic or inoperative Perform all checks as in the above evaluat
51. d the voltage continues at terminal 2 of the 20 minute timer for more than 20 minutes replace the timer 24 Oven Fan Relay 20 Minute Time Delay Check to insure that the contacts are opening after the coil is de energized NOTE ON OFF operation of the fan switch will set the timer to 20 minutes If the timer is accidentally reset turn off main breaker for 15 seconds to cancel Impinger Il 1100 Series Service Manual Domestic No control box cooling Check for main fan operation If not operating refer to Oven Fan Will Not Run Oven Start Relay Check relay contacts 120 VAC should be present Cooling Fan Motor s 120 VAC should be present at the fan motor If voltage is present check for opens or shorts WITH POWER OFF Check for locked rotor of the fan motor No automatic control Thermostat Cooling Check the cooling fan thermostat box cooling Fan Thermostat closes at 120 F and opens at 100 F With the cooling fan thermostat pre heated check for continuity If switch is open replace Cooling Fan Motor s 120 VAC should be present at the fan motor If voltage is present check for opens or shorts WITH POWER OFF check for locked rotor of the fan motor Control box cooling fan continues to run Thermostat Cooling Fan This normally open thermostat should close at 120 F 48 9 and reopen at 100 F 37 8 C Oven will not heat Main Fan Motor
52. e If voltage is present at terminal 1 check for 120 VAC at terminal 2 to neutral If no voltage is present and Main Fan Switch is closed replace Time Delay Check for 120 VAC to coil of the Relay if no voltage is present trace wiring back to 20 minute Time Delay Relay If voltage is present check to insure contacts are closing Fuse 10 Amp Check replace if necessary Fuse Holder Check replace if necessary Main Fan Motor Check for opens shorts or grounds WITH POWER OFF turn fan blade to check for locked rotor Capacitor Check for shorts or grounds WARNING Capacitor has a stored charge discharge before testing No main fan cool down Main fan runs after 20 minute cool down 20 minute cool down 20 Minute Time Delay Relay Main Fan Relay Check for 120 VAC at pin 2 and 3 while main fan is running Turn off main fan switch and 120 VAC should continue to be present for 20 minutes at terminal 2 Check if relay is operating and terminals are remaining closed for main fan cool down of 20 minutes NOTE The time delay relay will keep the coil of main far closed maintaining main fan operation for cool down for approximately 20 minutes Time Delay Relay 120 VAC at terminal 2 should discontinue approximately 20 minutes after the main fan switch is switched off If the switch is open and voltage continues at terminal 2 replace Time Delay When voltage at terminal 2 of Time Delay ceases the mai
53. e S 369231 4 Caster w Threaded Stem T 369232 Adjustable Leg Impinger Il 1100 Series Service Manual Domestic BLOW UP GENERAL 1100 SERIES Impinger II 1100 Series Service Manual Domestic 53 54 PARTS CONTROL COMPARTMENT FRONT 1100 1106 1130 1136 1150 1151 1160 1163 LETTER P N DESCRIPTION A 369173 Transformer 12 6 VAC B 369536 Cordset Cooling Fan C 369124 Cooling Fan D 350224 Lens Yellow 350225 Lens Red E 369522 Knob amp Dial Thermostat F 369669 Front Panel Label w Set Button Except 1150 369907 Front Panel Label w o Set Button Except 1150 G 369248 Knob Speed Control H 369247 Shaft Lock 370046 Button Only J 369260 Switch On Off K 369167 Switch Display Set L 369680 Front Cover Assembly M 369152 Potentiometer Conveyor All models prior to S N 2011383 and Models 1160 thru 1163 prior to S N 2011978 369391 Potentiometer Conveyor S N 2011383 amp Up 1160 1163 S N 2011978 amp Up N 369172 Display Time Temp O 369128 Lamp Pilot P 369520 Potentiometer Temperature Q 369728 Temperature Control R 369155 Conveyor Control All Models prior to S N 2011383 Except Model 1160 1163 prior to S N 2011978 5 369240 High Hat used with 369155 T 369509 Relay Cooling Fan Not Used On 1100 1106 U 369193 Thermistor Probe Yellow Leads V 369131 Thermocouple Probe 1 Red amp 1 White Lead 369025 Air Pressure Switch
54. e coupling shaft This is to allow the infrared light beams to be broken by the encoder disc If all this is okay then replace the optical encoder assembly 28 Impinger Il 1100 Series Service Manual Domestic STEPPER MOTOR DRIVE Conveyor will not run Conveyor Switch Check for 120 VAC to conveyor switch If no voltage is present trace wiring back to the oven power source WITH POWER OFF Check continuity between switch terminals Conveyor Fuse 3AMP Check replace if necessary Not used on Model 1151 Fuseholder Conveyor Control Stepper Transformer Check replace if necessary Check for 120 VAC supply to primary of transformer if voltage is not present trace wiring back to the fuseholder If voltage is present check for output voltage from the transformer secondary NOTE This control transformer outputs 2 secondary voltages Red Leads 29 VAC Brown Leads 10 VAC If BOTH secondary voltages are not present replace the transformer Speed Adjustment Potentiometer This is a 0 to 50k ohm 10 turn potentiometer WITH POWER OFF remove the 3 pin potentiometer cable plug from the motor control board With a digital multimeter check the ohm reading across the red lead to the black lead this reading should be 50k ohms 5 as the potentiometer is rotated through its 10 turn rotation Place the meter leads on the red lead and white lead Rotating the potentiometer slowly from low to high the meter
55. e Manual Domestic 43 MODEL 1100 SERIES OVENS Type 1 6 En or Ofi Off Type Il Off Off Type III Off AS Off On On On Off On On Baldor sus Stepper oa Y Off Off Off On Off eee Fr fas sm ETTE Stepper Stepper Motor Conveyor Speed 23 Seconds to 30 Minutes Type Off M On On Off On Off On On Off Off Off TIME TEMP DISPLAY FOR D C DRIVE HI TEMP 12 3 4 56 78 9 10 TYPE I AND II HAVE ONLY 6 SWITCHES TEMB GAL TIME DIP SWITCH MODULE a Stal 5 E 8 SMITCHPOSITION OFF B al a c m FOR DISPLAYS WITH THERMOCOUPLE PROBE 9 10 FROM TO STEPPER TO TRANSFORMER CONTROLLER THERMISTOR PROBE RED HITE TO THERMOCOUPLE PROBE TEMPERATURE CALIBRATION 44 Set dip switches per chart on page 43 Place a thermocouple from your test pyrometer through a hole in the center of the top finger Tip of pyrometer must not touch metal Set oven at 500 F 260 C and allow to preheat for 30 minutes Adjust temperature calibration pot so display agrees with your test meter Seal pot with Glyptol or nail polish If display will not adjust properly check your pyrometer for accuracy and if necessary refer to troubleshooting section 9 Gr Ee Gd Iftemperature is still inaccurate after above calibration and t
56. e Probe 1 Red amp 1 White Lead V 369532 Ignition Control 369531 Transformer 24 X 369189 Terminal Block Y 357067 Thermostat Oven Cavity High Limit Z 369523 Relay Motor AA 369508 Time Delay 20 Minute BB 369507 Thermostat Cooling Fan CC 369640 Control Stepper DD 969685 Drain Assembly EE 969605 Transformer Stepper Control Used On S N 2000200 Thru 2011383 Used On S N 2011383 And Above Impinger Il 1100 Series Service Manual Domestic BLOW UP CONTROL COMPARTMENT FRONT 1116 1117 Impinger II 1100 Series Service Manual Domestic 58 PARTS CONTROL COMPARTMENT REAR 1100 1106 1130 1136 1150 1151 S N 2011373 amp BELOW 1160 1163 S N 2011978 amp BELOW LETTER P N DESCRIPTION A 369628 Set Screw B 369190 Drive Coupling Complete C 369512 Rubber Sleeve D 369269 Ball Plunger E Gear Motor Assembly Refer to Page 67 for Exploded View F 369137 Circuit Breaker 0 2 Amp G 369192 Capacitor 7 5 MFD H 369200 Relay 369185 Terminal Block For 1 Phase Models 3 Required 369187 For 3 Phase Models 4 Required J 369186 Terminal Block End For 1 Phase Models 369188 For 3 Phase Models K 369120 Contactor For 1 Phase Models 2 Pole 369178 For 3 Phase Models 3 Pole L 354258 Transformer Control 354257 Transformer Control Model 1151 Only M 369506 Thermostat High Limit For Models 11
57. en Cool Down Thermostat closes After oven is switched OFF the Thermostat bypasses the Fan Switch keeping the Cooling Fan and Main Fan operating until the oven cools down to approximately 200 F 93 3 C Impinger II 1100 Series Service Manual Domestic SEQUENCE OF OPERATIONS 1116 1117 MODEL 1116 NATURAL GAS 120 VAC 60 HZ 1 PHASE MODEL 1117 L P GAS 120 VAC 60 HZ 1 PHASE POWER SUPPLY Electrical power is supplied to the oven by a three conductor cord set Voltage from the black conductor to the white conductor is 120 VAC The white conductor is neutral The green conductor is ground CONTROL BOX AUTO When the temperature in the control box reaches 120 F COOL DOWN 3 48 9 1 7 C the Cooling Fan Thermostat will switch power to the Control Box Cooling Fans The thermostat will interrupt power to the fans when the control box temperature falls to100 F 3 37 8 1 7 C MAIN FAN CIRCUIT Power is permanently supplied to the normally open contacts of the oven fan relay the normally open cooling fan thermostat terminal 1 of the time delay relay and the normally open main fan switch Closing the main fan switch enables the 20 minutes time delay relay The time delay relay supplies 120 VAC to the coil of the main fan relay These normally open contacts now close energizing the main fan motor and the cooling fans Closing the fan switch also energizes the time temp display the heat and co
58. erse order TRANSFORMER STEP DOWN 120 VAC 46 Oy Or P CO Shut off power at main breaker Remove Conveyor Remove control compartment covers Remove wires from transformer and mark for reassembly Remove 4 mounting screws from transformer base and replace Reassemble in reverse order Impinger Il 1100 Series Service Manual Domestic FUSEHOLDER Shut off power at main breaker Remove conveyor Remove control compartment covers Remove wires and mark for reassembly Remove fuseholder Reassemble in reverse order OTEO ce POWER CORD Shut off power at main breaker Remove conveyor Remove control compartment covers Unfasten and mark for reassembly power cord wires Remove locknut from strain relief and pull cord from oven Reassemble in reverse order Oy ON ee CO NOE STEPPER CONTROL REPLACEMENT ADJUSTMENT Removal and Installation Remove conveyor Remove control box cover front Remove three 3 screws from control assembly Disconnect wiring push on connectors from control board NOTE Proper location of connectors for reinstallation Reassemble in reverse order and check system operation Recalibrate conveyor control board BOND 9o WARNING THIS CONTROL MUST NOT BE OPERATED WITH HEAT SINK DISCONNECTED OR BURNOUT WILL OCCUR IN SECONDS CURRENT SENSE DO NOT ADJUST Heat Sink PEER Wu Max Conveyor rt Blue Red Speed Adj Speed Adj Gray LOCKED ROTOR POTENTIOM
59. f board NOTE When a control board motor tach generator or speed adjustment potentiometer is replaced the control board must be calibrated When calibration of control board is complete seal the adjustment pots See Control Board Adjustment STYLE 1 CONTROL BOARD ADJUSTMENT NOTE A digital meter must be used for this adjustment DPN OOS 10 11 Voltage at L1 and L2 terminals of the control board is to be 120 VAC 10 Connect a digital volt meter to terminals A and A set meter on 200 VDC scale Turn speed control pot on oven control panel to its maximum speed setting Turn MAX MIN and IR pots counter clockwise until they stop DO NOT turn CL pot Adjust TACH pot so the volt meter indicates 130 VDC 0 5 volts Adjust IR pot to read between 1 5 and 2 VDC above tach reading Example If tach reading would be 130 3 then adjust IR to between 131 8 VDC and 132 3 VDC Turn speed control pot to its minimum speed setting Adjust MIN pot so the voltmeter indicates between 6 and 10 VDC Turn speed control dial to obtain a reading of 22 VDC on your meter Observe for approx 30 seconds to see if stable within 0 5 VDC Repeat at 35 VDC Check speed of conveyor and adjust time temp display if necessary Seal pots with Glyptol or nail polish STYLE 2 AND STYLE 3 CONTROL BOARD ADJUSTMENT NOTE digital meter must be used Voltage at L1 and L2 terminals of the control board is to be
60. ff in approximately 5 to 25 seconds 9 Fine tune adjustment as needed Impinger II 1100 Series Service Manual Domestic 33 TEMPERATURE CONTROL BOARD Locate 34 O O 10 11 12 NOTE If your unit contains Fenwal temperature control board see below replace it with thermologic control board TEMPERATURE CONTROL BOARD CONVERSION FENWAL TO THERMOLOGIG FOUND ONLY IN ELECTRIC UNITS BELOW S N 2000861 Remove Fenwal board Remove 5K ohm potentiometer Remove wire 463 from oven This wire is connected to Fenwall board at terminal 5 Install new thermologic board with 2 screws Install new 2 5K ohm potentiometer Attach leads to thermologic board as shown in drawings See pages 34 amp 35 d in control compartment below drive end of the conveyor Shut off power at main breaker and remove conveyor Remove front control compartment cover Remove the two mounting screws Remove the electrical leads and replace the control board Identify the style of thermologic board by looking at the top of the transformer on the board There are five styles of boards each identified by a color marked on the transformer either RED BLUE GREEN GOLD OR A SILVER DOT Refer to Pages 34 amp 35 showing proper wiring connection NOTE When mounting a new temperature control board DO NOT over tighten the two mounting screws Turn the potentiometer fully counterclockwise Loosen t
61. h and tach is now free for removal Reassemble in reverse order Maintain spacing of 010 minimum between tach bracket and coupler hub NOTE Ifa new tach generator is installed the D C motor control board MUST BERECALIBRATED There is no repair procedure for the tach If defective replace D C MOTOR CONTROL BOARD L1 A L1 A 4 A FUSE FUSE RESISTOR RA FUSE FUSE 1A Fuse RESISTOR LA L2 gt RESISTOR A 1 ix AE MIN MAX booo gt s I sam oE gt el MAX MIN IR CL TACH 1 T2 MAX MN T T2 MIN BOARD P N 369155 BOARD P N 369155 BOARD P N 369155 STYLE 1 STYLE 2 STYLE 3 Three different styles of control boards have been used and all three are still usable All three were supplied under the same part number TO REPLACE THE CONTROL BOARD 1 2 3 40 Turn off power at main breaker and remove front control compartment cover Remove conveyor Remove and mark all wires from board Impinger Il 1100 Series Service Manual Domestic Qo Os Remove control board bracket and board from unit 3 screws Remove control board from mounting bracket Remove 4 screws lockwashers and nuts Install new control board and bracket Attach wires to their proper terminals refer to the drawings for proper terminal identification Perform calibration on the control board as specified using the calibrationprocedure for your style o
62. he Conveyor Motor at terminals A and A Adjustment of the Speed Control Potentiometer 5 000 ohm 10 turn will change resistance at terminals P1 P2 and P3varying the DC voltage to the Conveyor Motor The speed of the conveyor motor will increase or decrease as the DC voltage from the board increases or decreases respectively As the motor turns it drives both the reducer gear box and the tach generator The tach generator is a DC voltage generator which supplies a voltage to the DC Motor Control Board which is used as a reference for maintaining a constant conveyor speed TIME TEMP DISPLAY The secondary output of the Transformer is supplied to terminals 1 2 and 3 of the Time Temp Display The secondary output of the Transformer is nominally 12 5 to 15 VAC with a center tap The voltage from the center tap to each leg is 1 2 the secondary voltage The speed side of the Time Temp Display uses a slotted disc cemented to tach coupling to break the infra red light beam of the optical encoder mounted on gear motor producing electrical pulses that are transmitted to the display The display converts these pulses into a read out of minutes and seconds The temperature portion of the Time Temp Display thermistor outputs a resistance proportional to the oven temperature This resistance is then converted by the display into a temperature reading AUTOMATIC COOL DOWN When the oven reaches operating temperature the normally open Ov
63. he Dial Knob set screw and position the 50 F mark at the pointer NOTE The thermocouple of your test meter should be inserted through a finger hole in the top center of the oven and the oven pre heated for 30 minutes to stabilize the oven at set temperature The thermocouple probe must not touch metal it must sense air temperature only Adjustment of the GREEN GOLD OR SILVER dot control board may be required when installing a new board Adjustment is seldom required on RED and BLUE boards For RED or BLUE control boards with the temperature control dial at maximum the reading on your temperature test meter should be between 555 F 290 C and 575 F 302 C If not at this temperature adjust pot P3 to achieve these figures Refer to page 35 For the GREEN GOLD OR SILVER dot control board place the test probe of your meter in position as indicated in prior note Set the oven temperature control dial 500 F 260 C adjust pot P6 see page 34 to achieve a temperature reading on test meter of 500 F 260 C CCW to increase CW to decrease Adjust Time Temp Display Pot Temp Cal for 500 F 260 C RED POTENTIOMETER TRANSFORMER MARKED 2 5 K OHMS WITH GREEN GOLD OR SILVER DOT L 1120 VAC THERMOCOUPLE TYPE J Impinger Il 1100 Series Service Manual Domestic POTENTIOMETER TRANSFORMER 2 5 K OHM MARKED IN BLUE L 1 120 VAC THERMOCOUPLE TYPE J POTENTIOMETER TRANSFORMER MARKED IN RED L 1120 VAC
64. hould be 1 2 the voltage reading to 1 3 If the above secondary readings are not achieved replace transformer Time Temp Display If proper voltage is present at terminals 1 2 and 3 on time temp display but the display is not lighted recheck all connections for tightness If time temp display is still not operating replace the time temp display Temp display out or inaccurate NOTE Time Temp displays use two types of temperature sensors thermistor probe 2 yellow wires thermocouple probe probe 1 red wire and 1 white wire Impinger II 1100 Series Service Manual Domestic Place the thermocouple of a pyrometer into the center of the top finger Be sure the tip of the thermocouple is not touching metal The pyrometer will indicate oven temperature 29 Thermistor Probe Disconnect the thermistor probe leads from the time temp display terminals 9 and 10 Measure the resistance of the thermistor probe See chart on page 44 showing probe resistance at various oven temperatures If these readings are not achieved replace the thermistor probe Thermocouple Probe Place your pyrometer thermocouple into the center of the top finger Measure D C millivolts at terminals 9 and 10 on the time temp display See thermocouple chart on page 36 for proper readings Connect temperature meter to thermocouple at terminals 9 amp 10 on back of the time temp display Be sure to maintain proper polarity on thermo
65. igual Switch of the Burner Blower Motor closes power is applied to the Temperature Control The 2 5K ohm Temperature Pot is adjusted to desired temperature The Thermocouple will provide varying millivolts to the Temperature Controller The Temperature Controller supplies 120 VAC to the Solenoid Valve at intermittent intervals to maintain desired temperature CONVEYOR DRIVE Closing the Fan Switch and the Conveyor Switch supplies 120 VAC through 3 Amp Fuse to Lland L2 of the Motor Control Board AC volts are converted to DC by the Control Board and are supplied to the Motor from Board terminals A and A Adjustment of the Speed Control Pot 5 000 ohm 10 turn pot will change resistance at terminals P1 P2 and varying S N 2011383 and above the DC voltage to the motor The speed of the Conveyor Motor Refer to page 26 will increase or decrease as the DC voltage from the board increases or decreases respectively As the motor turns it drives both the Reducer Gear Box and the Tach Generator The Tach Generator is a DC voltage Generator that supplies a voltage to the DC Motor Control Board and is used as a reference for maintaining a constant conveyor speed TIME TEMP DISPLAY The secondary output of the Transformer is supplied to terminals 1 2 and 3 of the Time Temp Display The secondary output of Transformer is nominally 12 5 to 15 VAC with a center tap The voltage from center tap to each leg is 1 2 the secondary voltage
66. ill not 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 ignition control NOTE check for proper ground connection on ignition control Low flame is on but no main flame NOTE flame should be present at this time Check for 120 VAC at terminal 11 to neutral on temperature control If no voltage trace voltage back to Centrifugal Switch Temperature Control Turn the temperature adjustment knob to maximum temperature position and check for 120 VAC at the load terminal 9 and neutral If 120 VAC is present and unit is not heating refer to Temperature Solenoid Valve for next check If 120 VAC is not present proceed 20 Impinger Il 1100 Series Service Manual Domestic Thermocouple Probe Temperature Control Potentiometer 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 36 for proper readings If these readings are not achieved replace the thermocouple WITH POWER OFF remove the potentiometer leads from the temperature control board and measure ohms from black to white leads The reading should be from approximately 0 to 2 5 K ohms as the dial of the potentiometer is turned throughout its full rotation From black
67. ion If the time check is okay refer to the next section Conveyor Drive Stepper Motor Check to see if the conveyor drive stepper motor is running If motor is not running refer to Conveyor will not run on page 29 Magnet Check to insure that the magnet cemented to shaft of conveyor drive stepper motor has not been damaged Hall Effect Sensor Check for any physical damage to Hall Effect sensor mounted on conveyor drive stepper motor Check all wiring and connections for damage If the motor is running the magnet is in place but the display shows the Hall Effect Sensor may be defective or improperly connected Conveyor Drive Stepper Control Check all connections for tightness or proper location and check all wiring for visible damage Replace as needed If there is still no time display and all the above have checked out replace the stepper control 30 Impinger Il 1100 Series Service Manual Domestic REMOVAL INSTALLATION AND ADJUSTMENT IMPINGER II CONVEYOR OVEN MOTOR MAIN FAN N Shut off power at main breaker Disconnect motor wiring of main fan motor note wire colors for reassembly and remove entire oven back from the oven Refer to main fan See Below for removal information Remove the main fan Remove 4 screws from the motor support assembly Remove the motor mounting clamp and pull the motor away from the oven back assembly
68. ltage is present replace transformer Ignition Control Note The ignition control contains a safety lock out circuit If a flame is not detected within 6 seconds after the gas control valve is energized the ignition control will lock out To reset turn the burner switch off wait 45 seconds and switch the burner system on to retry ignition 24 volts should be present at 24 volt terminals If not present trace wiring back to burner transformer When 24 VAC is supplied the control switches 120 VAC from L1 and L2 to the Hot Surface Ignitor If 120 VAC is not present at L1 and L2 trace wiring back to oven cavity High Limit Thermostat If 24 VAC and 120 VAC are present and 120 VAC is not across the Hot Surface Igniter terminals replace the ignition control Impinger II 1100 Series Service Manual Domestic 19 Hot Surface Igniter If 120 VAC is present at Hot Surface Igniter terminals visually check to see that the igniter is heating Igniter may be viewed through the port glass in end of the burner tube The Igniter should glow bright red If the igniter does not heat replace the Igniter 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 ignition control across terminals marked valve and valve ground If no voltage is present replace ignition control Gas Control Valves
69. n fan relay must open No control box cooling Incoming Power Check main circuit breakers reset if required call powel company if needed Main Fan Switch Check continuity between switch terminals 20 Minute Time Delay Main Fan Relay With fan switch on check for 120 VAC at terminal 2 of Time Delay Check continuity of 120 VAC coil Check for power to the relay coil 120 VAC Cooling Fans 120 VAC should now be at the fan motors If voltage is present check motors for shorts or opens WITH POWER OFF Check for locked rotor 18 Impinger Il 1100 Series Service Manual Domestic Cooling fans continue to run after 20 minute cool Cooling Fan Thermostat Thermostat should close at 120 F 5 F and open at 100 F 5 Main Fan Relay Check to insure that contacts of main fan relay are opening after 20 minute cool down Oven will not heat Gas Supply Check for adequate gas supply and manual gas shut off valve is open Also check flexible gas line connection Main Fan If not operating refer to Oven fan will not run Heat Switch Check for continuity replace if necessary Fuse 10 amp Replace if necessary Fuseholder Replace if necessary Centrifigual Switch of Main Check for 120 VAC at lead 47 located at 6 pin Fan Motor connector in raceway near the main fan motor to neutral If no voltage is present and motor is running replace motor Oven Ca
70. ng should be approximately 2 5k ohms constant throughout the full rotation of the dial If these readings are not achieved replace the potentiometer If the thermocouple probe and the control potentiometer check good then the problem is usually with the temperature control board Mercury Contactor Check for 120 VAC to the contactor coil If voltage is present and the contactor will not activate replace the contactor Also check each contactor for proper high voltage input and output Heater Elements Check the Amp draw on each hot leg for proper load Check the specifications plate for rating information If the Amp draw is low or high check the individual elements for opens shorts and proper resistance WITH POWER OFF To check resistance of the elements remove all leads from the elements and use an accurate digital VOM The element resistance Impinger II 1100 Series Service Manual Domestic 25 should be as follows 208V 27 ohms approximately 240V 96 ohms approximately Oven heats with switch off Mercury Contactor The mercury contactor has probably malfunctioned in the closed position If there is no voltage to the operating coil but there is high voltage at the contactor output replace the mercury contactor Intermittent Heating Thermal Overload of Motor The main fan motor is equipped with internal thermal protection and will cease to operate if overheating occurs
71. nveyor switches BURNER CIRCUIT Closing the Burner Switch supplies 120 VAC through the 10 Amp Fuse through the Main Fan Motor Centrifugal Switch and oven cavity High Limit Thermostat to terminal L1 of the Ignition Control The Centrifugal Switch of the Main Fan Motor closes when the fan motor reaches 1600 RPM The High Limit Thermostat opens at 662 F 350 C and may be manually reset after the sensing bulb temperature drops 18 F 10 C Power 120 VAC is also supplied to the Burner Blower Motor As this motor reaches approximately 1600 RPM its Internal Centrifugal Switch closes supplying 120 VAC through the normally closed Control Box High Limit Thermostat to the primary of the 24 VAC Transformer and the Temperature Control The Control Box High Limit Thermostat is manually re settable and opens when the control box reaches 170F 5 76 3 C Discontinued at S N 2011383 IGNITION CONTROL The Ignition Control operates on both 24 VAC and 120 VAC When the control is energized by 24 VAC from the Transformer 120 VAC is switched by the Ignition Control to the Hot Surface Ignitor for 45 seconds for Hot Surface Ignitor warm up The Ignitor 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 TEMPERATURE CONTROL When the Centrif
72. om 1 to 3 Identify Display type a Type 1 has 6 dip switches and display case is 5 1 8 wide 12 8cm Type 2 has 6 dip switches and display case is 5 5 8 wide 14 cm c Type 3 has 10 dip switches Set Dip Switches as follows WITH POWER OFF Remove all leads from T T display except power input on 1 2 and 3 Install simulator to terminals 4 7 9 10 NOTE When on 50 Hz power dip switch number 2 must be on WITH POWER ON Turn time and temperature adjustment pot fully counter clockwise Display should read wait 15 seconds after turning SPEED TEMPERATURE TYPE 1 9 30 10 SEC 475 10 F 2 9 20 10 SEC HHH 9 35 10 635 10 F Turn time temperature fully clockwise Display should read wait 15 seconds after turning SPEED TEMPERATURE TYPE 1 10 20 10 SEC 615 10 2 10 10 10 SEG 475 10 10 20 10 SEG 475 10 For performance test turn time pot to 10 00 and temp adjustment pot To 540 10 F a Time reading on display of 10 00 should not fluctuate more than 5 seconds b Temperature on display reading should not fluctuate SWITCH ON OFF OO Ps Shut off power at main breaker Remove conveyor Remove front control compartment cover Remove wires from switch and mark for reassembly Depress spring clips on the side of switch and push out Reinstall in rev
73. plied to the oven by a four conductor service on single phase and a five conductor service on three phase Voltage from the black conductor to the white conductor is 120 VAC Black conductor is Hot Red conductor is Hot Orange conductor is Hot Used on 3 only White conductor is dedicated neutral Green conductor is ground NOTE A 20 Amp Receptacle NEMA STYLE L6 20 is provided on Models 1160 1161 1162 and 1163 for accessory plug in Rated at 208 or 240 VAC CONTROL BOX AUTO COOL DOWN When the temperature in the control box reaches 120 F 3 F 48 9 F 1 7 lt the Cooling Fan Thermostat will switch power to the Cooling Fans The thermostat will interrupt power to the fans when the temperature falls to 100 F 3 F 37 1 70 MAIN FAN CIRCUIT Electrical power is permanently supplied through a 10 amp fuse to terminal 1 of the 20 Minute Timer through the normally closed Hi Limit Thermostat to the fan switch Closing fan switch energizes the coil of the oven start relay its contacts close enabling the 20 minute time delay module The 20 minute time delay module supplies 120 VAC to the oven fan relay these normally open contacts now close supplying 208 240 VAC to the main fan motor The cooling fans are also energized Closing the fan switch also supplies 120 VAC to the Heater Switch Conveyor Switch and the display Transformer HEATER CIRCUIT Closing the Heat Switch supplies 120 V AC through the normall
74. r the two fuses in the red wires leading from the 12 6 VAC transformer to the display on older units If this does not solve the problem it may be coming in through the commercial power lines Suggest that customer contact his power company for evaluation Temp Display inaccurate erratic or inoperative Perform the power supply check the thermistor probe check and then perform the time temp simulator test Refer to Removal Installation and Adjustment section for instructions see page 42 Remember when using the time temp simulator remove all the leads from the back of the display except the 3 power leads After completion of this test and if reinstalling display back into the oven the dip switches must be reset for oven operation Time Display inaccurate erratic Perform all checks as in the above evaluation If the time check is okay or inoperative refer to the next section optical encoder Optical Encoder The above time temp test should have already been performed Remove dust cover from the gear motor and inspect the coupling and encoder disc The coupling set screws should be tight and not slipping on the motor shaft or the tach generator shaft The encoder disc should be firmly attached to the coupling and not warped Check the positioning of the optical encoder disc The disc should not be touching the optical encoder assembly and the encoder assembly should be mounted so it is squarely facing th
75. rol compartment cover Refer to control board drawing to identify terminal connections Reverse wires fastened to terminals A and A Reverse wires fastened to terminals T1 and T2 Both set of leads must be reversed or oven will run at maximum speed with no speed adjustment possible Impinger II 1100 Series Service Manual Domestic 41 POTENTIOMETER CONVEYOR SPEED CONTROL OOS ODIT BG IN Turn off power Remove conveyor Remove front control compartment cover Remove adjustment knob Two allen set screws Remove exterior friction shaft retainer from pot shaft Turn counter clockwise to loosen Remove pot shaft from hole and disconnect leads from motor control board Assemble in reverse order new pot is installed the motor control board must be calibrated MINI BREAKER 0 2 AMP Shut off power at main breaker Remove conveyor Remove control box covers Remove knurled mounting ring and disconnect wiring Reassemble in reverse order Push button to set BEARING CONVEYOR Remove conveyor from oven and place on a flat work surface Remove connecting links from conveyor belting See Installation and Operating Instructions manual Move drive shaft or idle shaft toward end of conveyor and shaft with bearings will now slip out of holding bracket Replace bearing and reassemble TRANSFORMER TIME TEMP DISPLAY Shut off power at the main breaker Remove conveyor
76. roubleshooting use the following to check the High Temp Pot normally the High Temp Pot does not require adjustment Occasionally the pot is accidentally moved or needs adjustment Refer to the following drawing showing proper adjustment of the High Temp Pot Impinger Il 1100 Series Service Manual Domestic FOR DISPLAYS WITH THERMISTOR PROBE ONLY BOTTOM OF TIME TEMP DISPLAY OG K O O OG guumumumuum 222909900055 test leads here reading should be 26 5 ohms if not adjust pot range 0 34 ohms TIME CALIBRATION 1 Be sure dip switch settings are proper 2 Turn power on 3 Turn conveyor on 4 Place an object on the conveyor belt and time with a stopwatch the elapsed time for the object to travel noo through the oven leading edge in to leading edge out Push in and hold the set button Discontinued on newer models Adjust time pot rear of display so display agrees with your stop watch time Seal pot with Glyptol or nail polish THERMISTOR PROBE REPLACEMENT o RON 9 Shut off power at the main breaker Remove conveyor and fingers from oven Remove control compartment covers Disconnect the 2 yellow thermistor leads from terminals 9 and 10 on the rear of the time temp display Remove the sensing bulb of the thermistor probe from its wire form holder located at right inside rear of the oven Install in reverse order NOTE Be sure that the spring
77. screws holding the blower air horn to burner Remove top control compartment brace Spring back side of control box out slightly push burner to side and you should now be able to pull the right side of the motor to the front which should free the air horn from the burner In some extreme cases the cooling fan may have to be removed 10 Assemble in reverse order BURNER ALARM REPLACEMENT 1 2 3 4 Remove control compartment covers Remove two 2 wires from alarm note wire numbers and location Remove retainer cover from alarm and remove assembly from mounting bracket Reassemble in reverse order and check Impinger II 1100 Series Service Manual Domestic 51 52 PARTS GENERAL 1100 SERIES LETTER P N DESCRIPTION A 369390 4 Caster w Mounting Plate B 369502 Bottom Finger Cover C Columnating Plate See Install Operations Manual D Bottom Finger Housing 369505 S N 2018676 amp Below 370010 S N 2018677 amp Above E 369504 Top Finger Housing F Columnating Plate See Install Operations Manual G 369503 Top Finger Cover H 369669 Front Panel Label with set button 369907 Front Panel Label without set button J 369511 Oven Top K 369659 Conveyor Hole Cover L 369228 Conveyor Hole Cover M 369227 Catch Spring N 369588 Ball Stud 369693 Spacer for Ball Stud 369225 Baffle Inlet Outlet P 369211 Thumb Screw Q 370118 Cross Support R 369919 Stand Sid
78. should show an even transition from 0 to 50k ohms 5 through the 10 turn rotation of the potentiometer There should be no dead or open spots through the 10 turns of the potentiometer Check all three leads to ground There should be no continuity to ground If any of the above checks fail replace the potentiometer Conveyor Motor Stepper Control NOTE if the conveyor drive motor becomes jammed the motor will stop turning To reset turn off conveyor switch wait 10 seconds and turn the conveyor switch on If the motor does not run check for 2 to 29 across the motor terminals 1 to 2 and 3 to 5 on the conveyor motor control If voltage is not present at both sets of terminals replace control Conveyor Drive Stepper Motor Check the drive sprocket on motor output shaft to insure that it is tight WITH POWER OFF Turn the motor shaft to check for jammed gear box Check motor windings Ohm readings on motor terminal 1 5 2 6 3 7 4 8 each reading should be approximately 2 ohms If motor shaft will not turn replace conveyor drive stepper motor Time Temp Display inoperative 12 VAC Power Supply Transformer 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 time temp display should read 12 15 VAC Terminals 1 2 and 2 3 s
79. termittently This may be caused by improper ventilation or preventative maintenance Also most of the problems listed under Oven will not heat can cause intermittent failure Conveyor will not run REFER TO PAGE 26 Conveyor speed varying REFER TO PAGE 26 or intermittent Time Temp Display REFER TO PAGE 27 inoperative Temp Display out or REFER TO PAGE 27 inaccurate Impinger II 1100 Series Service Manual Domestic 23 TROUBLESHOOTING GUIDE 1130 THRU 1133 1160 THRU 1163 ELECTRIC OVENS MODEL 1130 1160 120 208 VAC SINGLE PHASE 60 HZ MODEL 1131 1161 120 240 VAC SINGLE PHASE 60 HZ MODEL 1132 1162 120 208 VAC THREE PHASE 60 HZ MODEL 1133 1163 120 240 VAC THREE PHASE 60 HZ REFER TO PROPER SCHEMATIC FOR INDENTIFIED COMPONENTS SYMPTON POSSIBLE CAUSE EVALUATION Oven fan will not run Incoming Power Supply Check circuit breakers Reset if required Call Power Co if needed NOTE On Models 1160 1161 1162 and 1163 disconnect any accessory from receptacle in the rear of the oven and check for shorts or overloads Fuses 10 Amp Check replace if necessary Fuseholder Check replace if necessary High Limit Thermostat Oven Cavity Terminals are normally closed If open reset the thermostat and test for proper operation If it will not reset and hold replace thermostat Relay Oven Start 20 Minute Time Delay Switch Main Fan
80. thin slotted encoder disc must be handled with care so not to bend it 12 Recheck tightness on the set screws to be sure they are tight If available LOC TITE the removable kind should be used to secure set screws OPTICAL ENCODER ASSEMBLY SOOV GR TACH Qus orar Pu Remove gearmotor assembly see GEARMOTOR Above If replacing with new assembly cut wires to remove as new wires and plug are provided If only removing for access to coupling see step 3 Remove pins from connector with pin extractor tool P N 369600 Loosen dust cover screws and pull dust cover away from motor Remove 2 screws from optical encoder and remove encoder Reassemble in reverse order To adjust optical encoder a Position the encoder assembly so it does not rub the coupler hub and is square with the encoder disc The infrared light beam will be broken by slots in the encoder disc The encoder disc should not touch the bottom or top of the optical encoder if it does readjust the coupling The digital speed readout may be observed to check proper adjustment of the optical GENERATOR Turn off power at main breaker Remove gearmotor assembly see GEARMOTOR Remove tach cover plate and tach leads Mark wires for reassembly Remove 2 slotted screws from dust cover base and remove dust cover Loosen coupling set screw 050 inch allen wrench Remove tach bracket from motor 4 screws Remove 4 screws from base of tac
81. to red leads the reading should be approximately 2 5 K ohms constant throughout the full rotation of the dial If these readings are not achieved replace potentiometer If the thermocouple probe and the control potentiometer check good then the problem is usually with the temperature control board Temperature Solenoid If 120 VAC is present on the Valve temperature control board at load terminal 9 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 Thermal Overload of Main Fan and Burner Blower Motors Intermittent Heating Conveyor will not run REFER TO PAGE 26 From S N 2011383 and up REFER TO PAGE 29 Conveyor speed varying or intermittent REFER TO PAGE 26 From S N 2011383 and up REFER TO PAGE 29 Time Temp Display inoperative REFER TO PAGE 27 From S N 2011383 and up REFER TO PAGE 29 Temp Display out or erratic REFER TO PAGE 27 From S N 2011383 and up REFER TO PAGE 29 Impinger II 1100 Series Service Manual Domestic 21 TROUBLESHOOTING GUIDE 1100 THRU 1103 ELECTRIC OVENS MODEL 1100 120 208 VAC SINGLE PHASE 60 HZ MODEL 1101 120 240 VAC SINGLE PHASE 60 HZ MODEL 1102 120 208 VAC THREE PHASE 60 HZ MODEL 1103 120 240 VAC THREE PHASE 60 HZ REFER TO PROPER SCHEMATIC FOR IDENTIFIED COMPONENTS SYMPTON POSSIBLE CAUSE EVALUATION
82. trol compartment cover Remove terminals from pilot lamp Grasp body of the light assembly and slide to the side disengaging body from light lens Remove lens by pushing out from rear Reassemble in reverse order COUPLING CONVEYOR DRIVE FOR ALL 1100 MODELS L GN This coupling has a plastic or rubber sleeve connecting two metal drive ends The metal drive end on the conveyor side is secured by a ball plunger screw PROCEDURE FOR ADJUSTING DRIVE COUPLING Place one metal end on conveyor shaft Install ball plunger and adjust so the spring loaded ball will drop into the dimple on the flat of the conveyor drive shaft To test apply pressure on metal end towards the conveyor The ball detent should pop up out of the dimple and coupling end will slide back to conveyor frame Place other drive end on motor shaft Push conveyor frame to front side of oven conveyor opening Adjust the metal drive end on conveyor shaft so ball detent is in the dimple Lift the conveyor drive side slightly and place sleeve on conveyor side metal drive end Adjust motor side coupling drive end so sleeve is now held in place between the drive ends and tighten set screw on motor side firmly To remove conveyor simply grasp the coupling sleeve and pull towards conveyor The sleeve and drive end will slide towards the conveyor and separate from the motor drive GEARMOTOR D C CONVEYOR DUO h FPS o T9 Shut off power at main breaker Remove conveyor
83. ture is the ambient air temperature where the thermocouple fastens to the electronic temperature control board 350F 1014 1091 1246 1400 1553 1020 1097 1251 1405 1559 r 349 soo 655 129 806 960 1037 i114 1269 1425 1516 7956 699 MERCURY CONTACTOR om gt Shut off power at the main breaker Remove conveyor Remove control compartment covers Disconnect contactor wires and mark for reinstallation Remove screws from mounting bracket and replace contactor Reassemble in reverse order GAS VALVE CONOR GD N Shut off power at main breaker Shut off the gas supply in the main line to the oven Disconnect the flexible gas hose Remove the control compartment covers Remove the manual gas shut off valve from piping Remove screws from the bulkhead plate located on rear of oven at the gas pipe Remove the section of gas pipe to gas valve Disconnect the electrical leads from the solenoid valve Loosen the gas line union located near the burner and remove the gas valve and solenoid valve assembly Finish removal of the gas piping from gas valve Replace in reverse order Check all gas fittings for leaks Adjust the gas manifold pressure on the gas valve Refer to the specification plate on the oven for proper rating SOLENOID VALVE 36 OF Ps CO N cs Shut off power at main breaker Shut off gas supply Remove rear control box cover
84. vity High Limit Terminals are normally closed opens at Thermostat 660 F 350 C If open push in reset button and retest If thermostat will not hold for maximum oven temperature and oven is not exceeding temperature dial setting check for proper location of capillary bulb in its spring holder If above checks okay replace hi limit thermostat Burner Blower Motor Visually check to see if motor is running If not check for 120 VAC to motor at motor connector wire 40 and 41 If voltage is not present trace wiring back to oven cavity High Limit If voltage is present and motor is not running check for opens shorts or grounds Also WITH POWER OFF check for locked rotor Control Box High Limit thermostat NOTE Discontinued S N 2011383 Terminals are normally closed and open at 170 F 5 F 76 6 2 8 Check for proper operation If it will not reset and hold replace thermostat Centrifigual Switch of Burner Blower Motor Check for 120 VAC at motor connector wire 42 to neutral If voltage is not present trace wiring back to control box High Limit If voltage is present check 43 to neutral If voltage is not present and motor is running replace the Burner Blower Motor Burner Transformer Primary is 120 VAC with 24 VAC secondary If 120 VAC is not present trace wiring back to Burner Blower Centrifugal Switch If 120 VAC is present check for 24 VAC at secondary of transformer If no vo
85. y open Air Pressure Switch closed by air pressure from the Main Fan the 3 Amp Fuse to L1 terminal of the Temperature Control Board and the Heat Indicator Light TEMPERATURE CONTROL CONVEYOR DRIVE S N 2011383 and above Models 1130 through 1133 S N 2011978 and above Models 1160 through 1163 Refer to Page 26 Closing the Heat Switch supplies 120 VAC to the Electronic Temperature Control The 2 5K ohm Potentiometer is adjusted to achieve the desired temperature The Thermocouple will provide varying millivolts to the Temperature Control The temperature control board then supplies 120 VAC to the coil of the Contactor at intermittent intervals to maintain the desired temperature Closing the Conveyor Switch supplies 120 VAC to the DC Motor Control Board at terminals L1 and L2 AC volts are converted to DC volts and are supplied to the Conveyor Motor at terminals A and A Adjustment of the Speed Control Potentiometer 5 000 ohm 10 turn will change resistance at terminals P1 P2 and P3 varying the DC voltage to the Conveyor Motor The through speed of the conveyor motor will increase or decrease as the DC voltage from the board increases or decreases respectively As the motor turns it drives both the reducer gear box and the tach generator The tach Generator is a DC voltage generator which supplies a voltage to the DC Motor Control Board and is used as a reference for maintaining a constant conveyor speed TIME T

1100 Series

Contents

Download Pdf Manuals

Related Search

Related Contents