Service Manual 12/01/2008 (Rev. A)
Contents
1. hereby certify that the above indicated Blodgett XCEL 50EC KFC oven has been installed activated and is in good working order Service Agent s Signature Store Manager s Signature FORM Serv 27 White Copy To Blodgett Warranty Department Yellow Copy To Customer Pink Copy To Service Agency P N 52246 Rev A FAST VVC for XL 50EC Oven Second Level Programming a 66 33 Se io The oven needs to be in the ON position Press and hold the P Button _ Scroll to Programming for 3 seconds ae a Press the P Button Enter Service Code 2222 Press the P Button Scroll to Diag Input De i ee Strike Switch Press button 1 open closed door Hinge Switch Proximit Press button 2 open closed door O nem cieEee Press the P Button Scroll to Diag Output ee ee Press the P Button J gt S aa Component Function Test O O Component Function Test Po SS HeatRelay po Fantigh _ O pan bow po 4 Fan Forward CCW po Fan Reverse CW Po Coling Fan Blowsin PB Quench Solencid _ __ PD Chemical Pump _ p10 Recirc Pump __ po DoorLkock Motor p12 Mechanical Contactor N C Po 1B ater Fill Solenoid Po Reecire Solenoid ee ee O Scroll to exit Press the P Button ee OO FAST VVC for XL 50EC Oven Second Level programming EE SANC TON ne Scroll to programmin P Button for 3 seconds prog g a Press the P Button Code 2222 OO Press the P Button Scroll to2. A001 oa one CA FUNC once S A keeppushinguntil _ 0 1 STR once A002 A keep pushing until A101210 FUNC once A push holduntil 1415 10 STR to save 1A 0 2 0 A once A 0 2 4 Func ones o ooo o A push nhold until 160 10 sTR tosave A 0 21 Pp oa one CA RUNG once o o o A push hold until 1715 10 STR to save A 0 2 2 once A 0 23 FUNC once A push holduntil 1915 10 sTR tosave A023 A keeppushinguntil A101511 FUNC once ee on sTR tosave A 0 5 1 Pp aA mce CAN Func one St A push nholduntil 140 0 sTR tosave A 0 5 2 A twice STA RUNG one ft A push holduntil 6 0 STR to save 1A 0 5 4 A once A 0 5 5 FUNC once S A push holduntil 15 10 sTR tosave A 0 5 5 A push holduntil bl 0 1 FUNC once aA twice S 02 sTR tosave b 00 1 aA one eoon Func one o o A push hold until 1215 10 sTR tosave b 0 0 2 A keep pushing until b 0 0 5 FUNC once vV keeppushinguntil V 0 1 PRESS CCPL stR _ tosae elolos A one beloni FUNC once V keep pushing until 141010 STR tosae _ blo12 A one st 0 22 PEOC S a V keep pushing until 131610 STR to save lb 0 2 2 po aA once bloss FUNC once TT A keep pushing until 1110 10 A keep pushing until 0 0 4 V keep pushing until _ 0 0 STR 0
3. Clean Cycle l Press the P Button E Corresponding Name _ SoilShield____ Full Bottle Time Pe To exit programming Press V to EXIT _ lt SS Pressthe P Button O NOTE Fill times are based on 20 PSI inlet flow pressure po 800 o T45 pA po 4500 po 00 Pump Fill Time Ooo ee po 200 o 10200 po 200 po 800 XL 50EC Relay Board Rear View Call outs of J connectors and 1 pin location J2 Pin 1 J3 Pin 1 J6 Pin 1 J14 Pin 1 2 jd o o hat o 7 o 2 o o J1 Pin 1 o0o000000 pooooo0oo0oo0 J41 Pin 1 XL 50EC Trouble shooting test points Using the control diagnostic outputs Test Points on Relay Board Voltage Black lead Red Lead AC DC Ssteathaey cmc storm Emon corrocorszePn seon 2e voc Ce cooing Fan creo ston ten Comoe rer 2avoc a aver Solenad comezar ie Pn semon comenerianneon 2a voc Key Output Components Ea Chemical Pump Connector J18 Pin 5 Empty Connector J2 Pin 8 V 24 VDC EA Fill Spritzer Solenoid Connector J18 Pin 5 Empty Connector J18 Pin 3 BL 24 VDC E Mech Contactor Connector J18 Pin 5 Empty Connector J6 Pin 5 OR 24 VDC Recirc Pump Poe S T omiga Connector J6 Pin 8 V 24 volt transformer 24 VAC Recirc Solenoid Terminal 12 Gre WOW reat Connector J3 Pin 6 Y 24 volt transformer NOTE Component is normally energized de energizes during testing
4. Test Points on Relay Board Voltage Black lead Red Lead AC DC Fan High Speed 75Hz Connector J11 Pin 1 BK _Comector J2 Pin 9 GY 23 VDC Connector J2 Pin 10 GY 0 0 VDC Fan Low Speed 60Hz Connector J11 Pin 1 BK See U CARANA Connector J2 Pin 10 GY 23 VDC Connector J2 Pin 9 GY 23 VDC Fan Forward 45Hz Connector J11 Pin 1 BK Connerien de Ray eS VDE Key Motor Inverter Drive Connector J2 Pin 11 GY Connector J2 Pin 12 GY Connector J2 Pin 9 GY Fan Reverse 45Hz Connector J11 Pin 1 BK connector te PNAU G Connector J2 Pin 11 GY Connector J2 Pin 12 GY NOTE Logic for motor control connects return circuit 0 volts means circuit completed Component Resistance Readings 24VDC Power Supply Across V amp V Control Transformer Unwired DC Voltage Primary 24VDC Power Supply Across L amp N Control Transformer Unwired Line Voltage Secondary oo N Chemical Pump Motor Cooling Fan Component Transformer Jumper Removed Primary contacts 1 amp 2 Door Lock Motor Component Transformer Jumper Removed Primary contacts 6 amp 5 Hitachi yErowm to Blug Component Transformer with Jumper Primary contacts 6 amp 1 Hitachi Brown to Black 27 65 Component Transformer with Jumper Secondary contacts 7 amp 12 Hitachi Blue to Black 27 65 Element 208V Single element Liquid Detection Sensor Element 240V Single element Mechanical Contactor Coil 73 4 Convection Motor Windings Quench Sole
5. 0 1 po aA one CD FUNC one fT WV keep pushing until _ 0 1 a ae once 0 0 3 FUNC once o A keep pushing until 1 1012 STR 0 0 3 aA one clio o FUNC one TT A keep pushing until _ 0 3 A once 0 0 5 FUNC once tT WV keep pushing until 1 1112 STR to save A keep pushing until elo 1 5 FUNC once ST VW keep pushing until _ 0 1 STR A keep pushing until FUNC once V keep pushing unti STR A keep pushing until FUNC V keep pushing unti STR Eza once F 0 0 2 CE thes 2 0 0 F 0 02 F 0 03 FUNC once 5 0 0 F 0 03 d 0 01 0 lojo BnS lols c o 2 2 C022 V keep pushing until A keep pushing until BLODGETT XL50EC KFC Motor Drive Parameters Checking last three stored error codes FUNC oo y y y ao A sekeeppushinguntil d A keep pushing until d 08 2 FUNC once A keep pushing until vV keep pushing unti fal 0 0 4 FUNC Normal operation 10 10 d 0 Clearing stored error codes FUNC 0 0 4 Y keep pushing until b FUNC once bloon A keeppushinguntil_ bl 0 8 4 FUNC once Press STOP FUNC A and Y keys and continue to hold all 4 for three seconds Display will show D000 then HC then screen will scroll and stop at d001 FUNC CT STR tosave 1 oro Motor
6. BLODGETT Service Manual Model XLSOEC Grilled Chicken Oven with Semi automatic Cleaning System n VT 05401 800 331 5842 www blodgett com 12 1 08 BLODGETTIH 44 Lakeside Avenue Burlington Vermont 05401 U S A Telephone 1 800 331 5842 802 860 3700 Fax 802 652 2814 XCEL 50EC KFC OVEN STARTUP ACTIVATION CHECKLIST Return form to BLODGETT when job is complete Submit one form with each unit installed SERIAL NO MODEL __DATE OF INSTALLATION STORE ID SERVICE AGENCY ADDRESS ADDRESS CITY STATE___ ZIP CITY STATE ZIP PHONE ____ PHONE O MECHANIC ELECTRIC VOLTAGE PHASE The rating plate is located on the back of the oven OPERATIONAL START UP ACTIVATION PROCEDURE Information can be found in the Startup Guide or by contacting the factory Write in N A if not applicable 1 Flush Water inlet hose for 30 seconds to remove all debris in the water line before attaching the water hose to oven Verify water is cold Yes No 2 Is the oven level If no level the unit Yes No 3 Drain pipe and drain actuator are installed Yes No 4 Does drain hose reach open drain Cut to length as needed Yes No Attach the 90 pvc fitting to the end of the hose 5 Is the cleaning solution tray installed Be sure there are no kinks in Yes No the chemical line 6 COMPONENT FUNCTION TESTS In Diag Input mode check the operation of the following 1 Door Strike Switch 2 Door Proximity Switch 7
7. Inverter Error Codes Over current event while at constant speed Over current event during deceleration Over current event during acceleration Over current event during other conditions Overload protection Over voltage protection EEPROM error Under voltage error CPU error CPU error External trip USP Groung Fault Input over voltage Inverter thermal trip Thermistor oo kh OD 5 7 8 9 1 22 2 3 4 5 1 _ _ _ b N mmm mmm mm mm mmm m m m oO ol Sequence of Operation for KFC XL 50EC oven Mode Switch in the OFF position You will have AC voltage at The 50 AMP Fuse Holder The Line Side of the K1 Mech Contactor Circuit Breaker CB1 on the front control panel 24 VDC power supply power light on The large transformer T2 on the left hand side in the back of the oven The small transformer T1 on the left hand side in the front of the oven The Relay board Input J7 1 amp 3 24 VAC Voltage The Relay board Input J19 2 amp 3 24 VAC Voltage The VFD Computer Control Input 15 pin connector J1 1 amp 3 24 VAC Voltage Mode Switch pins 1 amp 3 Line Voltage You will have DC voltage at Positive Red DC voltage 24VDC on the following Relay board J 19 1 TB 4 on back panel 9 down from top right RD 24 Proximity Switch Door Switch SW1 SSR Heat Sink Mode Switch in on pin 6 out of pin 5 to the relay board J1 8 closed
8. in the OFF position Door Lock Control Board Auxiliary contactor mech K1 aux in A 1 out A 2 to Relay Board J11 3 Negative Black DC voltage 24VDC RTN e Relay Board J19 4 e Relay Board J11 1 e Door Lock Control Board e A 2 Coil of the Mechanical Contactor The Drain Actuator e With your Meter Leads Black on J18 6 and Red on J18 7 You will have Negative 24vdc in the Closed position You will have Positive 24vdc in the Open position Sequence of Operation for KFC XL 50EC oven Mode Switch in the ON position The Relay Board Verifies the Following with DC voltage e The Mode Switch contacts opens between 5 amp 6 DC voltage is removed from the Relay Board J11 8 e The Door Switch SW1 is closed sending DC voltage to J11 5 e The Proximity Switch is closed sending DC voltage to J11 2 e With the Door Lock Switch Open there is no DC voltage present from the Door Lock Control to the Relay Board on J11 7 e The SSR Heat Sink is Closed sending DC voltage to J11 6 Dc voltage supplied out of the RELAY BOARD J6 5 through the CAVITY HIGH LIMIT SW4 to the COIL OF THE MECHANICAL CONTACTOR K1 The Contacts of the Mechanical Contactor K1 close and opens the contacts of the Auxiliary contactor mech K1 aux removing DC voltage from the Relay Board J11 3 The contacts 1 amp 2 and 3 amp 4 close on the Mode Switch and send AC voltage to L 1 and L 3 of the Hitachi Motor Inverter Drive e The Relay Board sends DC vol
9. COMPONENT FUNCTION TESTS In Diag Output mode check the operation of the following 1 Heat On Light on the SS Relay 8 Quench Solenoid 2 Fan High 9 Chem Pump 3 Fan Low 10 Recirc Pump 4 Fan Forward 11 Door Lock 5 Fan Reverse 12 Contactor 6 Cooling Fan 13 Water Solenoid 7 Drain Valve look down drain 14 Recirc Valve 8 Set the water pressure to 20 PSI flowing Test 2 quarts in 50 seconds Yes No 9 Verify there are no water leaks from the connector to the cavity Yes No 10 Verify blower wheel wing screw is tight Yes No 11 Verify all metal edges are deburred Yes No 12 Verify the baffle and racks are installed properly Yes No 13 Verify incoming voltage matches Data Tag of oven Yes No 14 Applied voltage between L1 to L2 _ L2toL3 __ L1 to L3 15 Amp draw at terminal block L1 L2 L3 16 Turn oven on Allow heat to cycle 3 times Shut oven off Yes No 17 Apply your company sticker on Door Lock cover Yes No 18 Remove all protective vinyl from exterior sheet metal Yes No Fax completed form to Blodgett at 802 652 2814 This appliance may be equipped with proprietary features and or components which are for the exclusive use of the customer indicated above Further there may be procedures and or methods being utilized in preparing this customer s product which may be proprietary hereby certify that this information will be held in confidence and not disclosed to any third party for whom it is not intended
10. Time 2 00 0 05 3 00 0 03 MaintainsSetTemp 180F_ _ Turn Oven Off Wipe Cavity Clean NOTE Fill times are based on 20 PSI inlet flow pressure Temperature Vs Resistance Probe Chart
11. ack to the quench solenoid 24AC is powered out of J3 6 through the TB5 3 on the backpack to the re circulation solenoid Fill Time 1 45 Drain Closed 24vdc is powered out of J18 3 through the TB4 1 on the backpack to the water Spritzer solenoid Chemical Time 3 45 Drain Closed 24vdc is powered out of J2 8 through the TB5 5 on the backpack to the chemical pump Wash Time 45 00 Drain Closed 24AC is powered out of J6 8 through the TB5 1 on the backpack to the re circulation pump 24AC is powered out of J3 6 through the TB5 3 on the backpack to the re circulation solenoid Sequence of Operation for KFC XL 50EC oven Rinse Time 5 00 Drain Open 24vdc is powered out of J18 3 through the TB4 1 on the backpack to the water Spritzer solenoid 24vdc is powered out of J2 6 through the TB4 2 on the backpack to the quench solenoid 24AC is powered out of J3 6 through the TB5 3 on the backpack to the re circulation solenoid Pump Fill Time 2 30 Drain Closed 24vdc is powered out of J18 3 through the TB4 1 on the backpack to the water Spritzer solenoid 24vdc is powered out of J2 6 through the TB4 2 on the backpack to the quench solenoid 24AC is powered out of J3 6 through the TB5 3 on the backpack to the re circulation solenoid Purge Time 2 00 e Drain Closed 24AC is powered out of J6 8 through the TB5 1 on the backpack to the re circulation pump 24AC is powered out of J3 6 through the TB5 3 on the backpack to the
12. noid Valve Blue to Black Connection Motor Windings Re Circ Solenoid Valve Brown to Black Connection Motor Windings Recirculation Pump Brown to Blue Water Solenoid Valve 178 Solid State Heat Relay SSR Note Readings may vary some based on meter capability and accuracy FAST VVC for XL 50EC Oven Error State Controller Message Error Cause The controller cannot detect the input Fan Error Detection FAN ERROR signal from the at speed relay for 15sec indicating the fan is in fact ON VFD has sensed fan issues Most likely the drain has malfunctioned and cavity is full of water and chemical Fan Error Detection in clean delime FAN ERROR cycles WARNING DO NOT OPEN Clean Delime Error DOOR DO NOT USE OVEN CALL FOR SERVICE Strike Switch Error ERROR If the Hinge switch is open but the STRIKE SWITCH Strike switch remains closed SSR Heat Sink The controller cannot detect the If a second fan errors occur during the clean delime cycle E HEAT SINK ERROR input signal from the SSR thermal rror switch Fan Drive Error FAN DRIVE ERROR The controller cannot detect the Fan Detection Drive input for 10 seconds ini s If the controller sees an input from the ge iinit Etor Be ERROR mech contactor for more than 2 sec Controller cannot detect the door Door Lock Error lock input for 5 seconds while in the In clean Delime ERROR DOOR NOT LOCKED CLEAN or DELIME mode To
13. p micro cycles switch on door lock not fully engaged or bad High Limit Temp In Idle HI LIMIT TEMP If the cavity temperature from the Error Cavity In Cook FAIL HI LIMIT TEMP cavity probe is greater than 565 F H If the cavity temp from the cavity High Temp Error In Idle HI TEMP Cavity In Cook FAIL HI TEMP probe is greater than the set temp of the first profile selected 150 F If the probe in the heat sink of the Inverter Drive BAD DRIVE PROBE acs Probe Error CALL FOR SERVICE n Drive Probe opens In Idle PROBE OPEN SHORT Cavity Probe Error In Cook FAIL PROBE If the cavity probe is open or shorted OPEN SHORT Cook Heat Fail i i If the cavity temperature doesn t rise Detection FAIL COOK HEAT 20F within 5 min Communication ee COMM PRROR If the controller looses Error CALE ROR SERVICE communication with the relay board In Cook FAIL COMM ERROR R cavary Detection HEAT ERROR If the cavity temp doesn t make it y CALL FOR SERVICE from 150 F to 300 F within 5 mins NOTE Faults that occur during clean or delime cycles must be cleared with the HELP code or 4357 bgtstore public 1 Service Customers K F C Grill Chicken Program Self Cleaning Ovens Round 2 Ovens Technical Info Error Codes KFC Oven doc BLODGETT XL50EC KFC Motor Drive Parameters PReSS S DISPLAY FUNC Cd Y keeppushinguntil AJ FUNC once AO FUNC once dt ee 02 sTR tosave
14. re circulation solenoid Final Rinse 10 00 Drain Open 24vdc is powered out of J18 3 through the TB4 1 on the backpack to the water Spritzer solenoid 24vdc is powered out of J2 6 through the TB4 2 on the backpack to the quench solenoid 24AC is powered out of J3 6 through the TB5 3 on the backpack to the re circulation solenoid Sequence of Operation for KFC XL 50EC oven e Flush Time 2 00 e Drain Open 24vdc is powered out of J2 6 through the TB4 2 on the backpack to the quench solenoid 24AC is powered out of J3 6 through the TB5 3 on the backpack to the re circulation solenoid e Final Drain Time 3 00 Drain Open 24vdc is powered out of J2 6 through the TB4 2 on the backpack to the quench solenoid 24AC is powered out of J3 6 through the TB5 3 on the backpack to the re circulation solenoid FAST VVC for XL 50EC Oven Clean Cycle Programming 33 1a Press the P Button Is the Cavity clear of Debris ee et Press the P Button Is the Drain Hose Connected OCO Press the P Button Steam Cycle Water Spritz for 1 second every 20 seconds From 450 F to 300 F E Water Spritz for 2 second every 20 seconds From 300 F to 200 F E i fp a E TT sene Count Bown Time Pre RinseTime 3 00 1 20 MlTimee 4 ChemicalTime 33451316 WashTime 45700312 RinseTime ___ 5 00 0 25 PumpfilTime _ 2 30 0 20 i O 200 OT 17 1 0 17 1 45 2 00 Final Rinse Time 10 00 0 15 Flush
15. tage out J 2 pins 9 amp 10 to the Hitachi Inverter pins 3 amp 4 e The Hitachi Inverter speeds up to 75 Hertz e The Hitachi Inverter Verifies DC voltage from pins 11 amp L back to the Relay Board on J11 4 amp 1 Showing the motor is running The Relay Board sends DC voltage out of J20 2 amp 3 to the Control Circuit of the SSR powering the Elements The controller displays Preheat and starts to heat up to 450 degrees When the oven reach s a temp of 450 degrees the display will count down from 30 minutes to heat soak the cavity When the 30 minute heat soak counts down the display will read Load Set Program The Relay Board sends DC voltage from J2 9 amp 10 to the Hitachi Inverter 3 amp 4 and the motors speeds up to 95 Hertz The motor will reverse directions every 7 minutes by switching DC voltage from the Relay Board J2 11 To Pin 1 on the Hitachi for forward and J2 12 to pin 2 on the Hitachi for reverse Sequence of Operation for KFC XL 50EC oven Clean Cycle Steam Cycle 24vdc is powered out of J18 3 through the TB4 1 on the backpack to the water Spritzer solenoid The water will cycle 1 second ON every 20 seconds from 450 deg to 300 deg Then the water will cycle 2 seconds ON every 20 seconds from 300 deg to 200 deg Prerinse 3 00 Drain Opens 24vdc is powered out of J18 3 through the TB4 1 on the backpack to the water Spritzer solenoid 24vdc is powered out of J2 6 through the TB4 2 on the backp
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