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Service Manual for the Lang Models:

Contents

1. REVISION BLOCK ECR TM SA REV ECN NO DESCRIPTION DR MFG ENG DATE 73 C B REMOVED SNUBBER SRC 3 5 98 CONTROL CHANGED TO 1 SPEED MOTOR DLG 04 06 01 SWITCH va POWER SWITCH a 5 4 4 S o _ em 460 e us 158 58 d u ie EX C L ew 87 87 4 230 ese 316 258 ices PK 2 SECOND DECK Y WIRING IDENTICA i BACKUP RELAY FIRST DECK Fir i J GROUND LUG m BACKUP P 3 9X9 n ic ee of 2 Fuses orte BACKUP T fe OFF N o oO f EB Of 50 STEAM BACKUP ROM MAIN 0 0 0 0 0 I E Sen OVEN LIGHTS 240 VAC E bx STEAM Ol 0 0 0 0 0 0 INTERFACE 0 4 FAN RI HEAT j FAN LB UP TIONAL RH STAT STEAM ct STEAM s Gg eva 10 CONTROL C SECOND DECK Q CIRCUIT BREAKERS HEAT STEAM FROM 3 CONTRO 1 Le E P a X ERE S 1000 SNUB
2. REV CRIPTION DR MFG ENG DATE A ADDED 208 240VAC TOGGLE SWITCH BT 6 9 98 BACK UP BACKUP SWITCH NC 19 2 C C BACK UP TS Seed EX Q 5 10 0 HEAT y JPle HI SP MOTOR JP13 LO SP MOTOR JP14 OPT STEAM 69 pd 0 0 010 240 8 15 OVEN LIGHTS e P13 pia es apie PIF in gne 7 lt RID Ble 18724 5 c QC JP35 DOOR Sw Els 5 lt 3 JP40 POWER SUPPLY E lt 206 PR GP3 CHASSIS GROUND YYY 5 5 GP4 IS GROUND s Baie SEE NIE SECOND DECK 24 CONNECTOR WIRING IDENTICAL FIRST DECK i 1 15 5 OVEN CONTROL 1 CONTRO 7 FRONT FROM MAIN mi E d CONTACTOR C EE 6 olg C O O O O O O Sle DOOR SWITCH m O 0 0 0 0 0 ae pin FROM STD CONTROL 4 SOLENOID ab STEAM VALVE E WHEN PRESENT VOLTS KW AMPS 2750w 208v 36674 240 Li L2 L2 L3 3 1 Lt Lo L3 1 PHASE 1 208 616 275 a 37 229 56 1 240 433 367 285 289 265 486 m 1 e peck 208 891 55 60 742 60 12 oss 2 peck 240 8 733 553 577 553
3. 1 1 1 BAVAC 2 MOTOR to 5 NC NO L gt A eee E MOTOR HI NC NO BACK UP BACKUP SWITCH RELA NC NO c c Cz u OS Ca E 5 i HE G H HIE LIGHTS QO or OVEN CONTROL 9 CONTROL x S FRONT 5 5 POWER o amp DISPLAY 5 od Boor m 5 EIE 5 TSTAT 2 lt 9 c m Pe Bs 4 Ble b DOOR SWITCH m 5 5 Ne 5 FROM CONTROL U M RTD ba vac Fuse ur MOTOR o ruse Ojo Js L 3 m a 1 ES 3 3 4 4 FIRST DECK B40Vvac CIRCUIT BREAKERS E Ot 9 ef U xt 208VAC 55 37 _ VOLTAGE SELECTION SWITCH OO ON UP FOR 240VAC ALA RS DOWN FOR 208VAC EN HEATING ELEMENTS ERMINALS REAR VIEW 60 FROM MAIN CONTACTOR REVISION BLOCK REV ECN NO DESCRIPTION DR MFG ENG DATE A ADDED 208 240VAC TOGGLE SWITCH BT 8 9 98 HI SP MOTOR JP13 LO SP MOTOR 14 OPT STEAM JP15 OVE
4. SECOND DECK DESCRIPTION DR ENG CIRCUIT BREAKERS 1 93 POWER SWITCH 3 2 65 3 3 75 4 285 5 ud HEATING ELEMENT TERMINALS REAR VIEW GROUND LUG OPTIONAL C amp H BLOWER MOTOR 840v LA 9 40 Z AAA 2 OVEN LAMPS 5 o Y Y Y 12 13 42 SENSOR 24v OO oversee srar m FIXED CONTACTOR E m GREEN 5 PULSE FAN 38 SVE ad RED HEATING ELEMENTS 7 BUZZER O 2750w 208V 3667W 240V MC alg BLACK 2750W 208V 3667W 240V MOTOR o 304 BROWN 2750W 208V GREEN 1 f 29 YELLOW CDM 24V PAVAC HEAT CONTACTOR 3 s 54 50 58 6 54 7 e z 55 Et NOTE REMOVE JUMPER FOR 240 VOLT OVEN 25 35 3 4 4 CIRCUIT BREAKERS PART NUMBER DESCRIPTION MATERIAL 1 A LANG MANUFACTURING WIRING DIAGRAM SERVICE SPECIAL WIRING DIAGRAM AL HREE PHASE 98 60 5 Lt Le L3 2 E A et 7 ECCO WITH PULSE FAN ECCO SII 208 240VAC 208 30 DECK 1 4 7 24 NEXT HIGHER ASSY SHEET DRAWING NUMBER 240 7 3 0 N A Lor 81111 66 56
5. REVISION BLOCK STEAM BACKUP RELAY REV ECN NO DESCRIPTION DR DATE NC NO t PEN m 1 9 Sl HEAT id HI SP MOTOR ae ame JP13 LO SP MOTOR BACK UP Am oes Switch 14 OPT STEAM x 5 OVEN LIGHTS gt JP21 RTD 11 t E JP35 DOOR Sw S JP40 POWER SUPPLY oe e lt GP3 CHASSIS GROUND GP4 CHASSIS GROUND P41 RS232 E gA pa E gt JP41 5232 CONNECTOR Crore a mee i be ETT 4 2 WIRING IDENTICAL 2 5 9 FIRST DECK LIGHTS 51200 3 5 5 2 24 e SECOND DECK OVEN CONTROL 8 aa 3 CONTRO EM FRONT x 2 E 8 R 4 2 amp DISPLAY ale 5 in FROM MAIN EE x EP 4 CONTACTOR oe 1 X m 0 oe v at Q DODR SWITCH O 0 0 0 0 0 0 Els a 00000 0 Ite 0 0 0 0 0 0 70 CN CONTROL 0 0 0 0 0
6. H Adjustment Arrows Adjusts the LED display for time and temp TEMP TIMER Temp Button Press START to set desired temp Start Stop Button Starts BUZZER lt and stops the timer Timer Button Press to set desired time 10 Power Switch LED Display Product Button Used to program and store product into the computer Manual Program Button Used to input a one time only program LIGHTS ON Light switch Tier Indicator Displays what Tier cycle of a certain program is running Shelf Button Used to tell the oven which shelf the product is on Read Clear Button Used as a programming key Temperature Button Press at any time to display oven temperature Light switch Inspection light only Push toggle switch to the up LIGHTS On position to inspect product Switch 7 will automatically return to the off position AlphaNumeric Display Product Select Button Press to select desired 1 product Manual Program Button Use when product being cooked is for one time only Off POWER On 6 A LC p EB US 0 E 12 Power switch Shelf Select Button Press 4 to select shelf which product will be placed Read Clear Button Used to read programs c
7. ISION BLOCK SECOND DECK REV ECN NO DESCRIPTION bw CIRCUIT BREAKERS d 1 POWER SWITCH 55 59 e oe 3 T 55 53 se a 59 BVEN LIGHTS 6 62 2 LIGH SWITCH HEATING ELEMENT TERMINALS REAR VIEW GROUND LUG BAVAC D AM 1 S TERMINAL STR 2 Li 63 LIGHT CONTACTOR 480 59 QUU P 242 SENSOR 10 OYERTEMP STAT L3 lt a MOTOR CONTACTAR C GREEN 9 ee 5a EN C zava 39 ez L_ E PULSE FAN i SWITCH RED IFATING FLEMENTS E BUZZER Buzzer c 2750 208 3667 240 x E a 2 lt 9 9 8 BEAGK 2750W 208V 3667W 240V RED Fu SA er MOTOR H HEAT 30 BRN BROWN 40 BROWN SS IU 2750W 3667W 24VAC 4 mm CUM 24V C BAVAC HEAT CONTACTOR 50 30 55 54 56 6 EE EE 7 BLUE Si 55 57 25 53 QTY PART NUMBER DESCRIPTION MATERIAL A 1 a i LANG MANUFACTURING GROUND LUG DR SRC DATE TIT WIRING VOLTS AMPS SERVICE CONNECTIONS SPECIAL WIRING DIAGRAM K RING DIAGRAM a TOLERANCES 1 peck 48
8. SECOND DECK WIRING IDENTICAL 2 52 FIRST DECK UND CIRCUIT OVEN CONTROL 8 CONTROL E FRONT i 5 amp DISPLAY Es alg 5 5 E g slg 5 Sls 5 amp 215 2 Bu JP41 S B NC ERA RTD 2750 480v Fuse OTR ruse FROM CUNT a 1 1 BLU 4 RED 2 EX 3 FIRST DECK CIRCUIT BREAKERS 5 se oo HEATING ELEMEN TERMINALS REAR VIEW of 3 FROM MAIN CONTACTOR lt o o o o o o O 0 0 0 0 0 0 0 0 0 0 0 24 POLE TERMINAL BLOCK VOLTS AMPS HELE 3211 THTAL g L3 1 PHASE 480 60 27 us 158 100 480 87 87 sa 230 ese 258 LA P SERVICE CONNECTIONS ed THREE PHASE SINGLE PHASE te 2 4 VA NA PART NUMBER DESCRIPTION MATERIAL DATE LANG MANUFACTURING 7 1 99 TITLE FROM MAIN CONTACTOR OTHERWISE SPEC W D DATE TOLERANCES DECIMALS X 05 480 VAC Xxx RWISE SPECIFIED NEXT HIGHER ASSY SHEET DRAWING NUMBER REV ARE IN I TQ t
9. y ae FIRST DECK 1 5 d IVEN LIGHTS 240VAC 5 n INTER SECOND DECK CIRCUIT BREAKERS ran Lo FROM MAIN CONTACTOR OPTIONAL EE STEAM 0 0 0 6 0 6 CONTROL 0 0 0 0 0 c o 0 0 0 0 0 0 0 0 Q0 5 4 0000 970 H HEAT Y 24 POLE Mmm TERMINAL BLOCK E RTD STEAM 1 SOLENOID STEAM VALVE i CHEN PRESENT 4 LU V SUPRESSUR i HD V SUPRESSUR r9 1 sare HEAT 2 ust FROM d CONTROL to 600V SNUBBER 9 ru uz x zevat SS SNUBBER zavas 3 DOOR SWITCH lt bo ceramic CAPACITOR c 1 1 2 2 2 T 5 3 4 4 QTY ITEM PART NUMBER DESCRIPTION MATERIAL FIRST D CIRCUIT BREAKERS m LANG MANUFACTURING IDR SRC DATE 12 14 94 TITLE a Ses W D ECCO C STM TSE SPAT CK FD DATE 12 14 94 9 9 es TOLERANCES 208 240 EATING ELEMENTS TERMINALS REAR NEXT HIGHER ASSY DRAWING NUMBER REV lord 61111 115 B 58 RTD OOOO
10. 27 SICAL OPERATION CONT ECCO C ACTION RESULT Turn power switch to ON Control panel comes on display says BBBBB and then EntEr motor starts Press a product button Display says Preheat oven begins to heat to the programmed temperature Beeper sounds briefly Display says rERdY Open the oven doors and load the product Close the Beeper sounds briefly and display says ShELF door and press the product button again Press the shelf button s which correspond to the Display shows a countdown timer and begins to shelf positions which the product is loaded A count toward zero equals the top shelf and E equals the bottom shelf Beeper sounds continuously Display shows donE shelf button s flash Press the flashing shelf button s Beeper stops Display shows rEAdY if no other shelves carry product or resume count down for shelves that still have product cooking Open oven door and remove the product which corresponds to flashing shelf button s ECCO PP ACTION RESULT Turn power switch to ON Control panel comes on display says SELECT PRODUCT OR READ CLEAR TO PROGRAM Press a product button Display says PRODUCT X PREHEATING TO XXX F Motor starts and oven begins preheating to the programmed temperature Beeper sounds briefly Display says READY SELECT PRODUCT TO START Open the oven doors and load the product Close Beeper sounds briefly
11. 275 us 365 us FRACTIONS DECIMALS ECCO T 208 240V 1 DECK 249 42 37 37 11 5 28 3 1 14 2 3 13 2A 2 DECK 208 88 55 23 0 59 4 2 DECK 1 4 7 2 5 8 3 1 3 5 7 2 4 6 8 NEXT HIGHER SHEET DRAWING NUMBER REV e veck 240 78 73 230 548 Lor 61111 93 A 52 REVISION BLOCK SECOND DEC REV NO DESCRIPTION DR Mec ENG DATE CIRCUIT BREAKERS 245 1 5 POWER 2 o O 3 55 2 2 69 3 _ 55 Ls OVEN LIGHTS f SN 7 17 29 Y o p3 HEATING ELEMENT TERMINALS REAR VIEW GROUND LUG BAVA 722277271 FAN TERMINAL STRIP E ERMINAL STRI N 480V KAA 9 L2 29 TRANSFORMER c C Y Y Y 5 se m OO ayeten srar FIXED 3 22 MOTOR CONTACTAR GREEN 39 KCN 9 24 RED HEATING ELEMENTS DEXT BV 3667W 240V THERMOSTAT he
12. gt Programmable up to 10 products with four tiers for each program Independent Shelf Timers for each Shelf gt Load Control through use of Cooking Curves Shelf Compensation Timing for uniform baking Single speed fan e ECCO PP gt The Purple Plus offer the same great one touch system of the Purple coupled with the advanced baking capabilities of the new Platinum e ECCO PT gt Icon driven touch panel allows for easy operation also includes a manual override system Day Part Memory capabilities allow operators to recall the last daily selections automatically gt Programmable up to 99 products advanced baking capabilities include a 12 59 59 timer with ten tiers gt Independent Shelf Timer for each Shelf Load Control through use of Cooking Curves Shelf Compensation Timing for uniform baking gt Dual speed fan INSTALLATIC RECEIVING THE OVEN Upon receipt check for freight damage both visible and concealed Visible damage should be noted on the freight bill at the time of delivery and signed by the carrier s agent Concealed loss or damage means loss or damage which does not become apparent until the merchandise has been unpacked If concealed loss or damage is discovered upon unpacking make a written request for inspection by the carrier s agent within 15 days of delivery All packing material should be kept for inspection Do not return damaged merchandise to
13. s ADJUSTABLE Q NO 21 BLACK 8750 208 3667W 240V ray CD UESE SWIET 30 BROWN 40 BROWN ISI 42 33 5 41 0 BROWN 2750W S 38 GREEN a HEAT CONTACTOR O O 50 D 5t 57 se 56 54 50 56 6 25 BLUE 51 55 L 1 1 57 25 2 3 ks 53 QTY PART NUMBER DESCRIPTION MATERIAL ANG y TEMA T ATO LANG MANUFACTURING GROUND LUG IDR SRC DATE WIRIN IT p WS m ve RING DIAGRAM cens oa TOTAL L 1 480 a7 ez us 156 105 480VOLT 1 1 2 DECK 480 88 88 230 255 me 255 2 DECK L6 35 UNLESS OTHERWISE SPEI NEXT HIGHER ASSY SHEET DRAWING NUMBER REV DIMENSIONS ARE IN SCALE ioi 61111 94 A 53 12 n E FUSE MOUNT ECCO ee6 10 RED FUSE HOLDER 30901 08 BU TIE WRAP 25 BLK 30802 04 ER Q 12 4 POSITION 5 2 SWITCH 30304 16 N 0 7 HEAT LIGHT 24VAC 31601 07 PULSE MODE LIGHT 45 BLK 60 BLK 47 YEL 2008 SWITCH 18 RED 12 RED 240 2 2 FUSES 42
14. 50 PIN CONNECTOR 20 PIN CONNECTOR MICROPROCESSOR CIRCUIT BOARD PIN TEST POINT FOR IER i TO TEMPERATURE 7 OUTPUT 1 SENSOR 5 BUZZER STRAPPING BARS e CONNECTOR TO 8 PIN CONNECTOR M RIBBOH COHHECTOR 1 BLANK 2 24 VOLTS AC INPUT 3 BLANK 4 HEAT OUTPUT 5 MOTOR OUTPUT 6 STEAM OUTPUT OPTIONAL 50 DATA ECCO PP PT TEST POINT LAYOUT MOTOR HIGH MOTOR LOW C STEAM ECCO GCCO LIGHTS C e e POWER 7 zz z Z y d y How o6 YELLOW c JP13 JP14 YELLOW RED 4 2 YELLOW RELAY RELAY a Vee te YELLOW Y PURPLE PLUS YELLOW POWER SWITCH 5 YELLOW PURPLE PLUS 1 2 gt POWER SWITCH TA YELLOW YELLOW DOOR SWITCH 51 REVISION BLOCK SECOND DECK REV NO DESCRIPTION MFG DATE CIRCUIT BREAKERS a 1 955 power an 2 switch Y 2 265 7 E 5 4 38 15 5 51 57 LIGHT SWITCH 16 J
15. 972 s ruse FROM CONTROL 3 LS SERVICE CONNECTIONS THREE PHASE SINGLE PHASE Le L3 L 5 55 54 1 DECK 14 3 m 2 peck 14 7 258 w BEB 1 1 2 2 4 4 PLATINUM FIRST 240VAC CIRCUIT BREAKERS A 2 o 208 VOLTAGE SELECTION SWITCH UP FOR 240VAC DOWN FOR 208VAC FROM MAIN CONTACTOR QTY ITEM PART NUMBER DESCRIPTION MATERIAL HI LIMIT G MANUFACTURING DISC STAT DR SRC DATE 1 7 98 TITLE CK FJD DATE 3 19 98 W D ECCO PT 208 240VAC UNLESS DIMENSIONS ARE IN INCHES SCALE FIT JERWISE SPECIFIED NEXT HIGHER ASSY ET DRAWING NUMBER REV 61111 143 1O1 62 STEAM BACK UP SWITCH Ba pd L lage EZI PIG APIS BACK UP SWITCH REVISION BLOCK CN NO DESCRIPTION oR Mec enc ow Jean pas SOLENOID EAM VALVE HEN PRESENT NO HEAT HI SP MOTOR LO SP MOTOR OPT STEAM OVEN LIGHTS RTD DOOR Sw POWER SUPPLY CHASSIS GROUND CHASSIS GROUND RS232 CONNECTOR
16. HEATING ELEMENT TERMINALS REAR VIEW GROUND LUG iy 17 2 13 3 d J A E BLOWER MOTOR TERMINAL STRIP 2 29 19 OVEN LAMPS 10 E ai 3 c ts 31 42 pi sw _ m F GREEN HEAT LIGHT 2 THERMOSTAT 24V MOTOR CONTACTOR 39 ADJUSTABLE 24VAC 39 QD muse m RED HEATING ELEMENTS 2750W 208V 3667W 240V ges Ont Oo 23 BLACK 2750w 208V 3667W 240V t NC Og DWA 30 BROWN 40 BROWN 2750W 20BV O 8 2750W 3667W 5 38 GREEN E gavat HEAT 50 L 2 2 51 55 54 50 58 0 55 5 1 57 NOTE REMOVE JUMPER 59 FOR 240 VOLT OVEN 2 2 35 3 45 4 d JESCRIP zi CIRCUIT BREAKERS PART NUMBER DESCRIPTION MATERIAL A 1A rn 5 LANG MANUFACTURING GROUND LUG a Tom IRING DIAGRAM VOLTS KW AMPS SERVICE CONNECTIONS CK DATE 1 12 L3 L1 TOTAL L THREE PHASE SINGLE PHASE TOLERANCES 1 DECK 208
17. Service Manual for the Lang Models ECCO T ECCO AP 51 ECCO C ECCO PP ECCO PT Lang Manufacturing Company 6500 Merrill Creek Parkway Everett WA 98203 Phone 1 800 224 5264 Fax 1 425 349 2733 www langworld com Copyright 2000 oc qm ly Be SNC cce 10 11 12 13 14 15 _ TABLE OF CONTE CHAPTER PAGE TABLE OF GONTEN TSS LAOS AES 1 READ RRS RE SAAD RAE 2 EQUIPMENT DESCRIPTION eee nnne 4 INSTABEATION etico 6 3 1 id hoa ee 7 CONTROL PANEL eene 8 PROGRAMMING 65 2 4 000000 14 PROGRAMMING 15 GENERAL 000040000 25 TYPICAL OPERATION ai 27 SEQUENCE OF OPERAT ION ris to eo icto e arent 30 TROUBLESHOOTING A e 34 TEGHNIGAE DA Sa at a 46 WIRING 65 40040000 nnne 52 PARTS US Wisc uote teet titu tue 64 IMPORTANT READ FIRST IMPORTANT EACH UNIT WEIGHS 430 LBS FOR SAFE HANDLING INSTALLER SHOULD CAUTION OBTAIN HELP AS NEEDED OR EMPLOY APPROPRIATE MATERIALS HANDLING EQUIPMENT SUCH AS A FORKLIFT DOLLY OR PALLET JACK TO REMOVE THE UNIT FROM THE SKID AND MOVE IT TO THE PLACE OF INSTALLATION ANY STAND CO
18. 5 BOTTOM LUI 66 31400 10 Y Y 3 FROM MAIN CONTAC 1 REVISION BLOCK REV ECN N DESCRIPTION DR MFG ENG DATE VOLTS KW AMPS 18 13 L3 L1 TOTAL L3 1 PH 208 275 275 166 22 9 5 240 367 367 1166 265 486 eog 23 33 60 240 8 5 372 SERVICE CONNECTIONS THREE PHASE SINGLE PHASE 1 Le L3 1 1 DECK 14 2 Y 2 DECK 1 4 7 36 SECOND D GROUND LUG WIRING FIRST DECK 2 5 2 3 7 12 POLE 4 VE TERMINAL BLOCK SECUND DECK ARKLESS NNECTOR CIRCUIT BREAKERS FROM MAIN CONTACTOR 42 BRN 21 WHT 41 BEN 40 BRN 27504 208 11090 16 3667W 240V REUS 6 P 50w 208V 3667W 240v otie FUSE 2750W 3667W L Fla r 2 dd 8t 85 2 59 BLU 32 BLU JUMPER 208V 58 BLU REMOVE JUMPER FOR 40 1 c 1 WHT cu 50 WIRE NUT IN oC E x x 17174 x x 46 BLK 8 30200 17 9 A 6 YEL n N 3 n 38 J YEL i L PRL 28 PRI T BLOCK 30 2 a n QT
19. Circuit Board Microprocessor with Modem 40102 29 Probe Temperature Sensor 41100 08 Oven Rack 50200 20 Oven Rack Slide 50200 36 Turnbuckle Assembly 5031 2 02 Door Left Hand 51100 45 Door Right Hand 51100 46 Panel Label Purple Plus 60301 119 Valve Manual Main Water Supply Steam Units 70400 02 Valve Manual Water Supply Steam Units 70402 08 Valve Solenoid 24 60V Water Supply Steam Units 70403 01 Regulator Water Supply Steam Units 70404 01 Handle Assembly Single Handle Oven 70603 15 Knob Thermostat 450 F Oven 70701 28 Knob Damper Black 70701 25 Window Assembly Oven Door 71301 04 Blower Wheel 71500 05 Blower Wheel Steam Units 51100 57 Orifice Water Steam 60 DRL Steam Units 80405 01 70
20. A or v to SELECT PULE RATE select numbers select ENTER to move the 100 cursor to the next space 100 is the default If this okay select ENTER three USE Av KEYS TO SELECT times or ACCEPT once to advance to the next screen EXAMPLE 80 Press the once for 0 Select APPLE ENTER once to advance the cursor one space then press A eight times for a 8 Select ENTER to advance the cursor Since 0 is the next number select TIER 1 ENTER to advance to the next screen TEMP 320 TIME 00 45 00 FAN COOKING CURVE 80 lt ACCEPT lt ENTER ACTION DISPLAY Step 14 CORRECT The cursor automatically appears on YES The computer is asking YES NO if the program displayed is correct If any part of that program is incorrect press or USE Av KEYS TO SELECT v till the cursor is on NO Select ENTER or ACCEPT This will return you to step 7 Selecting YES will advance the 5 gza APPLE TIER 1 TEMP 320F TIME 00 45 00 FAN HI RATE 100 COOKING CURVE 80 lt ACCEPT lt ENTER 23 OGRAMMING ECCO PT CON ACTION DISPLAY Step 15 CONTINUE TO NEXT TIER The cursor CONTINUE TO NEXT TIER automatically appears on NO Select YES NO ENTER or ACCEPT to end programming or move the cursor with the A or to USE Av KEYS TO SELECT YES This will allow you to enter another tier to this program Repeat steps 6 14 to
21. Defective Circuit board Confirm that Heat Call light is on If no light is detected gt Check 12 position switch for normal operation See Technical Data for correct ratings If light is detected gt Check for 24V AC across heat output and on 12 Pole terminal If voltage is not present gt Replace Circuit board If voltage is present gt Check over temperature thermostat for proper operation gt Check door switch for normal operation 35 OUBLESHOOTING ECCO HINT Confirm that all Circuit Breakers are in the ON position NO MOTOR PROBABLE CAUSE CORRECTIVE ACTION Defective Fan Switch gt Verify that Fan switch is in ON position In pulse position motor will only cycle when oven calls for heat Defective Fuses Fuses gt Check Fuses for normal gt Check Fuses for normal operation Se Transformer gt Check Transformer for normal 02 See Technical Data for correct ratings Defective Circuit board gt Check for 24 VAC across Motor output on board and D on 12 position terminal block If no voltage is present gt Confirm that voltage is coming in from transformer gt Replace circuit board If voltage is present gt Check motor relay for normal operation 24 VAC 35Q gt Check door switch for normal gt Check motor for normal operation See Technical Data for correct ratings NO HEAT PROBABLE CAUSE CORRECTIVE ACTION Defective El
22. ENTER to move the cursor to the right EXAMPLE Press A once for an A then press ENTER Press A twice for a B then select ENTER Continue through The screen will then automatically advance once access code has been entered correctly c ENTER ACCESS CODE gt USE Av KEYS TO SELECT THEN PRESS ENTER lt ENTER PRESS CANCEL TO QUIT 19 OGRAMMING ECCO PT CON ACTION DISPLAY Step 5 Select eX PROGRAM PRODUCTS ES PROGRAM PRODUCTS X EDIT READY ZONE lt EDIT ACCESS CODE 4 ENABLE MANUAL PRODUCT lt CONFIGURE TIME OF DAY ACTION DISPLAY Step 6 Select lt CREATE NEW PRODUCT 4 EDIT PRODUCT lt CREATE NEW PRODUCT DELETE PRODUCT 4 EDIT PRODUCT ACTION DISPLAY Step 7 SELECT PRODUCT ICON is the first SELECT PRODUCT ICON gt screen when creating a product program Press until you find an icon that best resembles your product If necessary press USE Av KEYS TO SELECT to go backward through the icon list THEN PRESS ENTER TO ACCEPT Select ENTER to accept the icon and more to the next screen P APPETIZER lt ENTER 20 GRAMMING CONT ACTION DISPLAY Step 8 SELECT PRODUCT NAME is where you spell the name using the A or v to select each letter Then select ENTER to move the cursor to the next space and select a new letter
23. Lang Manufacturing Company File your claim with the carrier Prior to un crating move the oven as near its intended location as practical The crating will help protect the unit from the physical damage normally associated with moving it through hallways and doorways LEG INSTALLATION Legs are available for both the single and double deck installations Single deck installations require a 27 inch leg Double deck installations require 6 inch legs or casters To install the 27 inch legs place some cardboard on the floor and gently tip the oven onto its back Fasten two legs to the oven s front corners using the four 5 16 inch bolts provided in the leg kit Lift the oven onto its front legs and block the back up using one of the 27 inch legs set upside down in the center rear of the oven body Install the last 27 inch leg onto the oven body on the control side rear Gently lift the oven rear remove the leg set to support the oven center and install it on the last rear corner To install the 6 inch legs or casters attach the leg or caster to the leg supports supplied in the oven by following the instructions in the box then attach the leg support to the oven The adjustable feet on the bottom of each leg may be screwed in or out as necessary to level the oven STACKING THE OVENS Remove all the plug buttons from the top of the lower oven Remove the stacking kit from the oven compartment of one oven and install the 1 1 4 inch plastic bush
24. Shelf 4 8 4 8 4 8 0 9 0 9 0 9 8 7 8 7 8 7 1 6 2 7 3 8 R C P Product programmed R C 1 6 2 7 3 8 P 000 R C D C D C D C R C E D C B A 1 high 2 both RIC A B C D E P R C 3 4 5 6 7 8 R C RIC C B C B C B LE 2 3 R C PROGRAMMING ECCO ACTION DISPLAY Turn the power switch on If the oven is already on press the Read Clear key until the following screen is displayed SELECT PRODUCT OR READ CLEAR TO PROGRAM Enter access code 1 6 2 7 3 8 A SET TIME B SET DATE PROGRAM PRODUCTS D NEXT MENU Select PRODUCT PROGRAM MODE SELECT PRODUCT NUMBER 0 9 Select a number from 0 9 and press the key corresponding to that number NOTE If a product Key selected already has a program the screen will read EDIT PRODUCT 1 EDIT OR 2 DELETE NXX TX XXXF CX If a product Key dose not have program the screen will read ENTER COOKING TEMP 100 TO 450 F NOX T1 XXXF Enter a desired cooking baking temperature The screen ENTER COOKING TIME will automatically advance to the next display HR MIN SEC NOX T1 XXXF CO Enter the cooking time and then press E to advance to ENTER COOKING CURVE the next screen 0 TO 100 NOX T1 CXX Enter the desired cooking curve Refer to sections 6 3 and 6 7 for mor
25. The rising of heat and the hot oven ceiling causes the top shelf to bake quicker This characteristic is more pronounced when baking at higher temperatures and or for prolonged periods of time 25 GENERAL CON FOUR PAN 26 YPICAL OPERATION ECCO T ACTION RESULT Adjust proper temperature between 140 amp 450 Oven begins heating degrees and allow to preheat up to 20 minutes Open oven doors and insert product set timer up to Timer begins counting down 60 minutes Timer beeps continuously when done Product should now be done ECCO AP ACTION RESULT Turn power switch to ON Control panel heat call light comes on Adjust proper temperature between 140 F amp 450 F Oven begins heating and allow to preheat up to 20 minutes Open oven doors and insert product set timer upto Timer begins counting down 60 minutes Timer beeps continuously when done Product should now be done ECCO SII Turn power switch to ON Digital display reads 000 Press Temp button and use arrows to adjust to Oven begins heating and displays PrE proper Temp between 150 F amp 450 F Beeper will sound for 3 seconds when preheated Display will read preheated temperature Open doors and insert product Press Time Button and use arrows to adjust to Digital display will start countdown desired time Press Start Stop Button Beeper sounds continuously Press Start Stop Button
26. Wide 27 67 5 cm High 38 95 cm Deep Top Front Back and Sides are constructed of stainless steel with an aluminized bottom e oven doors come standard with double pane windows e door handle is constructed of Stainless Steel and Phonolic Tubing e oven cavity is insulated with high temperature insulation for efficiency and reduced heat loss INTERIOR e The oven cavity dimensions are 29 72 5 cm Wide 20 50 84 cm High 21 53 38 cm Deep e The oven is designed for a maximum of five shelves and comes with five Chrome Plated Racks e interior of the oven is constructed of porcelainized stainless steel OPERATION e The ECCO oven is a forced air convection oven with a adjustable vented oven cavity e A 1 3 HP fan motor drives the air CONTROLS e The ECCO is available either with the Lang Accu Temp ECCO T Accu Plus ECCO AP Selectronic ECCO SIT Purple Computer ECCO C Purple Plus Computer ECCO PP and the Platinum Computer ECCO PT e ECCO T Easy to use manual control knobs Pulse and two speed fan e ECCO AP Easy to use manual control knobs Pulse and two speed fan Solid State temperature sensing and controls ECCO SII Complete Computerized Controls gt Solid State temperature controls Digital Display PMENT DESCRIPTION CC e ECCO C gt Complete Computerized Controls with a Manual Override system
27. defective Defective over temp thermostat gt Check for 24 VAC on 55 red wire to common D If 24 VAC is not measured Turn oven off and gt Check for continuity through over temp thermostat gt Replace if defective 40 NO HEAT Computer Mode PROBABLE CAUSE CORRECTIVE ACTION No 24 VAC on Interface board gt Check for 24 VAC at TP4 to ground If 24 VAC is not measured gt Check for 24 VAC at NC contacts on back up relay If 24 VAC is measured gt Check for 24 VAC at TP6 gt Replace Interface board if defective DISPLAY LOCKS UP PROBABLE CAUSE CORRECTIVE ACTION Help in display Check probe for proper resistance Check that probe connections are secure Push TEMP button on control board and check to see if temperature rapidly descends If temp does descend rapidly replace ribbon cable Check to see that contactors relays are not stuck in the closed position Replace contactor if defective Check for foreign objects keeping contactor closed 88888 stuck in display Check for stuck button by pressing any button If computer beeps or chirps gt Check control panel transformer 12 VAC for proper operation gt Check for at least 10 5 VAC gt Check TP2 for at least 4 99 VDC gt Check TP3 for at least 4 97 VDC If computer does not beep or chirp gt Check each button for movement gt Check that panel label has not been damaged in any way Replace
28. program second tier APPLE TIER 1 TEMP 320F TIME 00 45 00 FAN HI RATE 100 COOKING CURVE 80 ACCEPT lt ENTER ACTION DISPLAY Step 16 After programming the last tier select lt CREATE NEW PRODUCT when asked CONTINUE TO NEXT TIER the computer will automatically advance the screen to program more products If no lt EDIT PRODUCT other products need to be programmed select CANCEL three times to advance lt DELETE PRODUCT screen to the boot up screen lt EDIT PRODUCT ACTION DISPLAY Step 17 You may now preheat the oven for any products you have programmed Step 18 Select Run oven lt RUN OVEN lt TIME DATE PROGRAM TIME DATE TEMP STATUS 12 00 01 01 01 325 STANDBY 24 OPERATIONS gt Convection ovens constantly circulate air over the product This strips away the thin layer of moisture and cool air from the top of the product Heat penetrates more quickly Cooking times are shortened and cooking temperatures are usually reduced gt convert standard deck oven recipes to convection oven recipes reduce the temperature 50 F and the time by 25 Make adjustments as necessary depending upon your results gt Thelower the temperature the more even the bake gt Check the product halfway through the baking cycle Look through the door windows Opening the oven door is not recommended gt If products are brown on the outside and not done on the inside too high a temp
29. when entering programming codes Pressing it twice then pressing a Product Button will read back the program in that product button gt Pressing and holding the button down until 88888 appears in the display will cancel the current mode of the control and return the display to EntEr Temp When the Temperature Recall Button is pressed the display will indicate the internal oven temperature When released the display will revert to the previous readout PROGRAMMING TERMS COOKING CURVE Cooking curve is a function of the computer that controls the cooking time If the temperature of the oven is lower than the programmed temperature the control will slow the timer down to compensate for the lower cooking temperature Cooking Curves from 0 no time adjustment to 7 maximum adjustment are available Cooking Curve 3 is the most commonly used However as a general rule the longer the cooking time the lower the cooking curve the shorter the cooking time the higher the cooking curve FAN FUNCTION The convection fan has two programmable options Fan On Fan 1 runs the convection fan continuously Fan Off Fan 0 leaves the fan off until heat is called for by the control In a convection oven the fan must come On whenever the heat comes On The convection fan cannot be turned Off continuously TIER Tiered programming is the ability to change the cooking temperature or fan function during the cooking cycle As an example some product
30. 0 60 us 156 i56 u Tu Ey m FRACTIONS DECIMALS ECCO SII 480VOLT N E ECCO SII WITH PULSE FAN DECK 480 88 255 255 L6 2 4 35 NEXT HIGHER ASSY SHEET DRAWING NUMBER REV 61111 69 A 57 C amp C STM REVISION BLOCK CONTROL ECN NO DESCRIPTION DR ENG DATE a POWER SWITCH TO POWER SWITCH nu 23 TOTAL 1 L2 L3 1 PHASE COMPUTER 2 c o 1 DECK 1166 37 37 ges 56 n COMPUTER CAT 1 DECK 249 eas ae 2 60 742 60 9 1 LIGHT BACKUP RELAY Switch NORMAL SINGLE 5 EE Q EN a L j 2 DECK ese 19572468 e 2 o olo STEAM OFF 9 x 8 c
31. 0 0 Ci C S O O E 24 POLE d GROUND LUG TERMINAL BLOCK RTD us SOLENOID BEAN stean varve mca lt PRESENT Qo vas 2750W 480V uve recs eau TOTAL L1 L2 1 PHASE 1 peck 480 ez 27 us 158 58 LATTE m UNE Se FIRE 1 2 DECK 480 a7 87 54 23 0 258 316 25 8 N A aT a e HEAT LN ruse SERVICE CONNECTIONS NS contacrar 24vac a2 9 Ren 9 a E THREE PHASE SINGLE PHASE N A 5 1 DECK 1 3 N A NZA 2 peck 1 6 ea 3 5 ava NA NC L3 L L3 Le 9 o 20 5 BLU 5 m RED 2 2 m g 3 PURPLE PLUS QTY PART NUMBER DESCRIPTION MATERIAL A DAD c LANG MANUFACTURING HI LIMIT DISC STAT DR DATE 7 1 99 TLE 55 5 W D ECCO PP f CK DATE e ra e TOLERANCES io D R FRACTIONS 12s 29 Tes 480 VAC Dor HEATING 55 9 Wise T R ASS SHEET RAWNG NUMBER REV TERMINA UNLESS OTHERW NEXT HIGHER ASSY SHEE OR REAR VIEW SCALE 61111 154 61 ON BLOCK
32. 0 93 Rack Extra Deep 50200 31 Rack Slide Extra Deep Before 38832 50200 33 Rack Slide Extra Deep After 38832 50200 94 Turnbuckle Assembly 50312 02 Door Left Hand 51100 45 Door Right Hand 51100 46 Panel Label Before F 90435 60301 91 Panel Label After H 90436 60301 101 Handle Assembly Single Handle Oven 70603 15 Knob Damper Black 70701 25 Knob Time Control Before F 90435 70701 27 Knob Temperature Time Control 70701 28 Window Assembly Oven Door 71301 04 Blower Wheel 71500 05 64 PARTS LIST ECCO DESCRIPTION PART NO Element ECCO Oven 208 240 Volt 11000 Watts 11090 16 Element ECCO Oven 480 Volt 11000 11090 18 Motor 1 3 HP 480 Volt 2 Speed 30200 16 Motor 1 3 HP 208 240 Volt 2 Speed 30200 17 Micro Switch Oven Door 30301 02 Switch Toggle On On 30303 06 Switch Toggle Spring Return 30303 16 Switch Temperature Control 12 Position 140 450 F 30304 16 Thermostat Safety 490 F Open 30401 09 Contactor 3 Pole 24 VAC 30700 06 Contactor 2 Pole 30 Amp 24 VAC 30701 05 Contactor 2 Speed Motor 24 VAC 480V Only before H 90435 30705 02 Contactor 2 Speed Motor 24 VAC 480V Only After H 90436 30705 03 Timer Electric 1 Hour 24V 30800 05 Buzzer Electric Timer 24V 30802 04 Fuse 15 Amp 300 Volt 30900 10 Fuse Holder 15 Amp 30901 08 Transformer 120 208 240 24 VAC 31400 07 Transformer 480 24 VAC 31400 15 Pilot Light 28 VAC 31601 07 Lamp Socket 31602 04 Lamp 250 Volt 31603 04 Oven Lamp Lens Watch Glass 31604 01 Ov
33. 05 02 Snubber Hi Voltage Contactor Circuit Feed 208 240V 40705 04 Snubber Hi Voltage Across Poles 3 Pole Contact 208 240V 40705 05 Snubber Hi Voltage On Coil 2 Pole Contactor 480V 40705 06 Snubber Hi Voltage Across Pole 3 Pole Contactor 480V 40705 07 Snubber Low Voltage 24 Pole Terminal Block 480V 40705 08 Snubber Hi Voltage 24 Pole Terminal Block 480V 40705 09 Suppressor Low Voltage 24 Pole Terminal Block 40705 10 Suppressor Hi Voltage 24 Pole Terminal Block 40705 11 Probe Temperature Sensor 41100 08 Door Handle 11 1 2 Long Black T Style Double Handle Ovens 50800 12 Door Handle Bracket Chrome Single Handle Ovens 50800 49 1 Door Handle Screw Single Handle Ovens OBSOLETE Door Handle Washer Single Handle Ovens 20104 50 Turnbuckle Assembly Single Handle Ovens 50312 02 Door Left Hand Single Handle Ovens 51100 45 Door Right Hand Single Handle Ovens 51100 46 Panel Label Purple 60301 42 Panel Label Mrs Fields 60301 93 67 PARTS LIST ECC DESCRIPTION PART NO Valve Manual Main Water Supply Steam Units 70400 02 Valve Manual Water Supply Steam Units 70402 08 Valve Solenoid 24 60V Water Supply Steam Units 70403 01 Regulator Water Supply Steam Units 70404 01 Handle Assembly Single Handle Oven 70603 15 Knob Thermostat 450 F Oven not used before D 57000 70701 19 Knob Damper Black not used before D 57000 70701 25 Window Assembly Oven Door 71301 04 Blower Wheel 71500 05 Blower Wheel Steam Un
34. 4 VAC Before H 90435 30701 04 Contactor 2 Pole 30 Amp 24 VAC After H 90436 30701 05 Contactor 2 Speed Motor 24 VAC 480V Only before H 90435 30705 02 Contactor 2 Speed Motor 24 VAC 480V Only After H 90436 30705 03 Fuse 15 AMP 300 Volt 30900 10 Fuse Holder 15 Amp 30901 08 Transformer 120 208 240 24 VAC 31400 07 Transformer 480 24 VAC 31400 15 Pilot Light 28 VAC 31601 07 Lamp Socket 31602 04 Lamp Incandescent 250 Volt Clear 31603 04 Oven Lamp Lens Watch Glass 31604 01 Oven Lamp Lens Gasket 31604 02 Circuit Breaker 208 240 Volt 1 Pole 31800 01 Circuit Breaker 480 Volt 3 Pole 31800 04 Circuit Board Temperature Control 40101 17 Circuit Board Assembly Buzzer 40102 10 Probe Temperature Sensor 41100 08 Turnbuckle Assembly 50312 02 Door Left Hand 51100 45 Door Right Hand 51100 46 Panel Label Before H 90435 60301 58 Panel Label 2 Speed Motor Before H 90435 60301 73 Panel Label After H 90436 60301 102 Handle Assembly Single Handle Oven 70603 15 Knob Damper Black 70701 25 Window Assembly Oven Door 71301 04 Blower Wheel 71500 05 Bezel Control Board Before H 90435 72603 01 Bezel Fiber Spacer Before H 90435 20501 01 Bezel Screw Short Qty 1 Before H 90435 20102 19 Bezel Screw Long Qty 4 Before H 90435 20102 20 Bezel Washer Before H 90435 20201 13 Rack 50200 20 Rack Slide Before H 37462 50200 36 Rack Slide After H 37462 50200 93 Rack Extra Deep 50200 31 Rack Slide Extra Deep Before 38832 50200 33 Rack Slide Extra De
35. BER ae WHEN PRESENT 480 Dues 4 C SNUBBER 100VAC 2750W 480V H SNUBBER 600VAC SY Eu E TAG E LO VOLTAGE SUPRESSOR x zorn L gt G HEAT FROM 5 VOLTAGE SUPRESSOR E CONTROL A pem i n CERAMIC CAPACITOR colos eavac RED ve a 4 BLACK i i L o hs i 2 QTY PART NUMBER DESCRIPTION MATERIAL AN T T Fa uke ROTATION CLOCKWISE LANG MANUFACTURING S 33 CIRCUIT BREAKERS s 2 LIMI SRC DATE 12 14 94 TITLE f DISC STAT W D ECCO C STM 1 SPEED ren OOF CK FJD DATE 12 12 95 51 57 56 50 TOLERANCES _ HEATING ELEMENT FROM 480VAC ERR viet CONTACTOR TE UNLESS OTHERWISE IFIED NEXT HIGHER ASSY SHEET DRAWING NUMBER REV DIMENSIONS ARE IN INCHES SCALE To FIT Lor 61111 129 C 59 STEAM SOLENOID WHEN
36. ILLS CAUTION OCCUR CLEAN IMMEDIATELY TO AVOID THE DANGER OF SLIPS OR FALLS KEEP WATER AND SOLUTIONS OUT OF CONTROLS NEVER SPRAY OR WARNING HOSE CONTROL CONSOLE ELECTRICAL CONNECTIONS ETC MOST CLEANERS ARE HARMFUL TO THE SKIN EYES MUCOUS CAUTION MEMBRANES AND CLOTHING PRECAUTIONS SHOULD BE TAKEN TO WEAR RUBBER GLOVES GOGGLES OR FACE SHIELD AND PROTECTIVE CLOTHING CAREFULLY READ THE WARNING AND FOLLOW THE DIRECTIONS ON THE LABEL OF THE CLEANER TO BE USED Never leave a chlorine sanitizer in contact with stainless steel surfaces NOTICE longer than 10 minutes Longer contact can cause corrosion lt Service on this or any other LANG appliance must be performed by NOTICE qualified personnel only Consult your authorized service station directory or call the factory at 1 800 224 LANG 5264 or WWW LANGWORLD COM for the service station nearest you IMPORTANT READ FIRST IMPORTANT BOTH HIGH AND LOW VOLTAGES ARE PRESENT INSIDE THIS APPLIANCE WARNING WHEN THE UNIT IS PLUGGED WIRED INTO A LIVE RECEPTACLE BEFORE REPLACING ANY PARTS DISCONNECT THE UNIT FROM THE ELECTRIC POWER SUPPLY USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY CAUTION LANG OR THEIR AUTHORIZED DISTRIBUTORS CAN CAUSE BODILY T INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND WILL VOID ALL WARRANTIES Lang Model ECCO Electric Full Size Convention Oven EXTERIOR e oven exterior dimensions are 40 100 cm
37. N LIGHTS JP21 RTD JP35 DOOR Sw 40 POWER SUPPLY J ON OFF J LIGHT SWITCH GP3 CHASSIS GROUND GP4 CHASSIS GROUND 9 JP41 CONNECTOR 9 SECOND DECK WIRING IDENTICAL FIRST DECK 25 2 6 27 4 28 FROM MAIN c CONTACTOR CIRCUIT BREAKERS 0 0 0 0 0 0 0 0 0 0 0 0 _0 0 0 0 0 24 POLE TERMINAL BLOCK VOLTS AMPS La L3 mra L1 1 Deck 208 275 166 37 37 229 56 240 367 166 289 289 265 486 208 891 2 33 60 742 60 240 2333 553 577 553 972 SERVICE CONNECTIONS _ THREE PHASE SINGLE PHASE L1 Le La Lx LS roe 2 3 24 2 DECK 147 258 1 3 5 7 2 4 60 ITEM PART NUMBER Di MATERIAL LANG MANUFACTURING HI LIMIT DISC STAT oR SRE DATE 1 7 98 TITLE W D ECCO PP CK FJD DATE 3 19 98 TOLERANCES T 208 240VAC anoles UNLESS OTHERW NEXT HIGHER ASSY SHEET DRAWING NUMBER REV DIMENSIONS ARE IN INCHES SCALE To FIT Lord 61111 144
38. NOTE APPETIZER is the name that must be replaced with the new product name or blanks when SELECT PRODUCT NAME APPETIZER A USE Av KEYS TO SELECT P the product name is shorter than APPETIZER A 24 APPETIZER EXAMPLE APPLE replaces only IZER A must be replace by blanks blank can ACCEPT be found before A or after 9 when ENTER scrolling ACTION DISPLAY Step 9 SELECT PRODUCT TEMPERATURE Press the A or to select a number Then select ENTER to move the cursor to the next space and select a new number The screen will automatically advance after you enter the last number SELECT PRODUCT TEMPERATURE 100 USE Av KEYS TO SELECT EXAMPLE 320 Press three times for a 3 then APPLE select ENTER to advance the cursor Press two times for a 2 then select TIER 1 ENTER to advance the cursor Since 0 is already displayed just select ENTER to advance to the next screen lt ACCEPT lt ENTER ACTION DISPLAY Step 10 SELECT TIER COOK TIME Time is entered in hours minutes seconds The maximum is 12 59 59 Select ENTER to advance cursor to the place you want to enter a number EXAMPLE 45 minutes 00 seconds Select ENTER twice to advance from hours to minutes then press A four times for a 4 then select ENTER to advance the cursor Then press A five times for a 5 then select ENTER to adva
39. RS SS c ais 1 24 alla 5 E GROUND LUG 1 O FROM MAIN 3 26 OVEN LIGHTS 240 CONTACTOR 2 RTD 2 I iQ 24 POLE CHEAT TERMINAL BLOCK FROM Lo CONTROL I2 2 SPEED SWITCH PULS SWITCH 36 Qu 3 EI AEE 27 PULSE DOOR SWITCH BRN 4 nme DFS TU 1 i x BLUE re C FUSE a lt 1 N lt LTT ES RED m 5 2 2 n 5 S 9 Q lt 24 pa H lo LLL 1 K UN 5 B RED 17 y E Ne Ep E E 3 FIRST DECK MEM CIRCUIT BREAKERS DUE QTY PART NUMBER DESCRIPTION MATERIAL ANT T NO LANG MANUFACTURING IDR SRC DATE 12 14 94 TITLE vreur W D ECCO AP CK FJD DATE 12 14 94 TOLE TIONS 480VAC NEXT HIGHER ASSY SHEET DRAWING NUMBER REV 61111 110 55 REVISION BLOCK
40. T PULSE FAN HI SPEED FAN LOW SPEED TEMP AM TIME high and low speed Timer Control Electronic one lt hour timer with continuous beeper Vent Knob ON lt power switch OFF LIGHT Light switch Inspection light only Push toggle switch to the up position to inspect product Switch will automatically return to the off position PULSE FAN HI SPEED Pulse fan switch Pulse fan Dual speed switch setting will only turn the fan 2 Toggles the fan between on when the oven is calling high and low speed for heat FAN LOW SPEED TEMP Temperature Control Allows temperature to be set in 25 F _ increments from 140 F TIME Timer Control Electronic one 4 hour timer with continuous beeper ONTROL PANEL Vent Knob ON Power switch OFF Light switch Inspection light only LIGHT COOK N HOLD Push toggle switch to the Cook N Hold switch position to inspect product Switch D Oven will automatically will automatically return to the off ne z drop to 140 F when oven position timer stops timing down PULSE FAN HI SPEED Pulse fan switch Pulse fan setting will only turn the fan Dual speed switch on when the oven is calling Toggles the fan between for heat high and low speed FAN LOW SPEED TEMP TIME LED Display
41. UNTER OR OTHER DEVICE ON WHICH OVEN WILL BE CAUTION LOCATED MUST BE DESIGNED TO SUPPORT THE WEIGHT OF THE OVEN A SHIPPING STRAPS ARE UNDER TENSION AND CAN SNAP BACK WHEN CAUTION CUT THIS APPLIANCE MUST BE GROUNDED AT THE TERMINAL PROVIDED DANGER FAILURE TO GROUND THE APPLIANCE COULD RESULT IN HIGH ELECTROCUTION AND DEATH INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL QUALIFIED WARNING TO WORK WITH ELECTRICITY AND PLUMBING IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND OR DAMAGE TO EQUIPMENT UNIT MUST BE INSTALLED IN ACCORDANCE WITH ALL APPLICABLE CODES P The data plate is located above control panel behind wire mesh screen The NOTICE oven voltage wattage serial number wire size and clearance hor specifications are on the data plate This information should be carefully read and understood before proceeding with the installation The installation of any components such as a vent hood grease extractors NOTICE fire extinguisher systems must conform to their applicable National State za Ga and locally recognized installation standards During the first few hours of operation you may notice a small amount of NOTICE smoke coming off the oven and a faint odor from the smoke This is normal for a new oven and will disappear after the first few hours of use ALWAYS KEEP THE AREA NEAR THE APPLIANCE FREE FROM CAUTION COMBUSTIBLE MATERIALS KEEP FLOOR IN FRONT OF EQUIPMENT CLEAN AND DRY IF SP
42. Y ITEM PART NUMBER CRIPTION MATERIAL LANG MANUFACTURING IDR SRC DATE 12 14 94 TITLE W D CK FD DATE 12 14 94 ERANCES i ECIMALS ri 208 240 5 015 UNLESS OTHERWISE Si NEXT HIGHER ASSY SHEET DRAWING NUMBER REV DIMENSIONS ARE IN INCHES SCALE N A tor 61111 109 B 2750W 480V REVISION BLOCK 53 se 54 Qv 57 56 5 HEATING ELEMENT TERMINALS REAR VIEW BUZZER REV ECN DESCRIPTION DR MFG ENG DATE KE c ADDED NEW TERMINAL BLOCK SRC 1 23 98 M gt TIMER pave SWITCH Q4 34 9 3 VOLTS KW AMPS Li Le Le 13 13 11 TOTAL 11 B 3 10 C 1 DECK 480 60 2 7 Be 15 158 158 100 Le 8 e ae 9 LIGH 1 DECI 1 2 DECK SWITCH 2 DECK 480 87 87 54 230 258 316 258 8 lt HEAT 2 DECK 1 6 Heu 3 5 7 O AP fi D TAI HEAT LIGHT 2 e BAVAC Tt FUSES OND DECK Y 4110 CIRCUIT BREAKE
43. al operation Replace as necessary Defective back up relay gt Check relay for normal operation gt Check coil for 24 VAC If 24 VAC is measured Turn oven off and gt Check coil for 7 2 KO gt Replace as necessary If 24 VAC is not measured gt Verify that manual override switch is in off position Check manual override switch for normal operation Check wires for any shorts Defective control transformer 12 VAC Check transformer for normal operation Check primary coil for 208 240 VAC and 630 O Check secondary coil for no less than 10 5 VAC and 1 If voltage is not measured on primary gt Check wires for any shorts gt Check Power switch for normal operation If voltage is measured on primary gt Check for voltage on secondary Replace transformer gt Defective rectifier gt Check for no less than 10 5 VAC on and 5 VDC on TP2 gt If correct voltage is present at TP1 and present but low at TP2 unplug both ribbon connections from CPU and re measure at TP2 If voltage remains low at TP2 replace CPU If voltage at TP2 increased to 5 VDC when ribbon was unplugged plug ribbon back in to CPU and disconnect from Interface board Re measure at TP2 If voltage dropped to below 5 VDC replace ribbon cable If voltage remains at 5 VDC plug ribbon back into Interface board and measure for 5 VDC at TP3 If voltage is present at TP3 and display is still not on press
44. and display says SELECT the door and press the product button again OVEN SHELVES PRODUCT X Press the shelf button s which correspond to the Display shows a countdown timer and begins to shelf positions which the product is loaded A count toward zero equals the top shelf and E equals the bottom shelf Beeper sounds continuously Display shows DONE PRESS SHELF BUTTON X REMOVE PRODUCT shelf button s flash Press the flashing shelf button s Beeper stops Display shows READY SELECT PRODUCT TO START if no other shelves carry product or resume count down for shelves that still have product cooking Open oven door and remove the product which corresponds to flashing shelf button s 28 ICAL OPERATION ACTION RESULT Control panel comes on display says LANG Run Oven Time Date Program Display says Preheating to XXXF Select Product to start Display shows possible product selection for that temperature Select Product to start Display says Select shelf Press Product button next to desired shelf Display will show icon chosen and begin to count down Beeper sounds continuously Display shows DONE press button and remove product from that shelf 29 EQUENCE OF OPERATION EC Power switch turned on 240 208 VAC across Common terminals on power switch and B terminal of 12 pin Terminal block 240 208 VAC to Common terminals of Mo
45. and hold the R C button on board 1f LED s come on replace Interface board If LED segment does not illuminate or the LED is blank replace LED At this point you should have a display 38 NO FAN Manual Mode PROBABLE CAUSE CORRECTIVE ACTION Defective 208 240 24 VAC transformer Back up relay not energizing Motor contactor not energized No voltage across contactor points gt Check for 24 VAC on C and D of the terminal block If 24 VAC is not measured Turn off and gt Check secondary coil for 1 gt Check primary coil for 77 Q gt Replace transformer If 24 VAC is measured Turn off and gt Check back up relay for normal operation gt Check for 240 VAC on relay coil If 240 VAC is measured Turn unit off and gt Check back up relay coil for 7 2 Q gt Replace if defective If 240 VAC is not measured gt Check back up switch SPDT for normal operation gt Replace if defective gt Check for 24 VAC at contactor or relay coil If 24 VAC is not measured Turn oven off and gt Check door switch for normal operation gt Replace or adjust door switch If 24 VAC is measured Turn unit off and Check contactor coil for continuity gt Replace if defective gt Check 208 240 VAC across C terminals of contactor If 208 240 VAC is not measured gt Check connection to main contactor heat contactor gt Check circuit breaker If 208 240 VAC is measur
46. ation can be found on the oven DATA PLATE This oven can be installed on both single and three phase supplies and is shipped from the factory for three phase To phase the oven to match the power supply follow the charts in the Technical Data portion of this manual or to the wiring diagram for proper wire size and grouping 6 ECCO AP ECCO C ECCO PP ECCO PT ECCO SII ECCO T Convection Oven Start Up 1 Verify connections at plug and terminal block 2 Incoming Volt Single Phase 11 12 Three Phase 11 12 L2 L3 L3 L1 3 Amp draw L1 L2 L3 4 Motor amp draw 5 Are programs correct Yes m No LJ 6 Verify actual temperature at 350 F F Note Install thermocouple wire in center of oven cavity Let oven cycle off and on 3 times before recording temperature Set Temperature for 350 F Model Date Serial Store Tech Name Contact Company Store Phone Service Company Phone Address Pulse fan switch Pulse fan setting will only turn the fan on when the oven is calling for heat Temperature Control Allows temperature to be set from 100 F 450 F in 50 F PANEL ECC Vent Knob Poweer switch Light switch Inspection light only Push toggle switch to the position to inspect product Switch will automatically return to the off position Dual speed switch lt Toggles the fan between ON OFF LIGH
47. button if defective gt Replace panel label Display has shelf A gt Read Programming Codes 41 1 BLESHOOTING ECCO PP ECC To help troubleshoot the oven you should perform the following Manual Override test Open drop down door located on the lower right side directly below front panel Turn back up toggle on off switch to on position Turn main power switch to on position VON ON ON WV Check oven for normal operation NO DISPLAY PROBABLE CAUSE CORRECTIVE ACTION Defective Power Switch PP Confirm that toggle switch is getting correct voltage onis Check power switch for normal operation Defective Power Switch Confirm that JP37 has 5VDC in the off position and nominal voltage output on circuit board in the on position Urs If JP37 has a constant 5 check toggle switch for normal operation Defective Control Confirm that 208 240V AC is feeding primary coil Confirm that 24VAC and 12VAC is at JP40 24 across solid yellow wires and 12VAC from one solid yellow wire to yellow with red stripe Defective Display Check ribbon cable connections Confirm that voltage is present at JP40 If no voltage is present gt Replace control transformer If voltage is present gt Confirm that CPU has 5VDC at this means that the CPU is getting correct voltage gt Confirm that CPU has 12VDC at TP2 this means that the CPU is sending out the correct voltage If no voltag
48. cked at 350 F Must be completely disconnected from circuit board when measuring probe resistance Display will read HELP if probe is open or unplugged Any probe resistance can be multiplied by 2 milli amps 002 to determine voltage drop 48 CHNICAL DATA MODEL STRAPPING The Front Control panel of the Lang Purple computer must be configured to match the model of oven it is being installed in To configure the front control panel you must change the arrangement of the Strapping Bars located at the bottom of the circuit board just above the ribbon connection Each model has its own strapping configuration which must be set by the service technician Follow the diagram below for the proper strapping configuration ECCO C POWER SWITCH ECCO STM BACK OF CIRCUIT BOARD GCCO C GCCO STM EHS C 8 PIN CONNECTOR EN EN PROBE CONNECTION GHS C 49 ECCO C TEST POINT LAYOUT TOTERMIHAL FROM POWER BLOCK POWER SWITCH BOTTON OF CONTROL Tagz outs AC 2 CIRCUIT CONTROL
49. e detail ENTER FAN SPEED 1 HI 2 LOW NOX T1 XXXF CXX Select Fan speed 1700 rpm Low 1400 ENTER FAN PULSE RATE 1 TO 100 NOX T1 XXXF CXX XX2O0CXX Select Fan Pulse rate 0 to 100 O off unless calling for heat 100 on at all time NOTE Any number between 0 100 means that the fan will be on that many number of seconds in a 100 second block E g 67 on for 67 seconds in a 100 second block CONTINUE TO TIER 2 1 YES 2 NO NOX T1 XXXF CXX F XX If your press you will go through the same sequence as outlined above If you press 2 the next display will automatically appear A SET TIME B SET DATE PROGRAM PRODUCTS D NEXT MENU 18 PROGRAMMING ECCO ACTION DISPLAY Step 1 Turn the power switch on If the oven is already on press the CANCEL key until the following screen is displayed Step 2 Select lt TIME DATE PROGRAM RUN OVEN TIME DATE PROGRAM TIME DATE TEMP STATUS 12 00 01 01 01 325 STANDBY ACTION DISPLAY lt DISPLAY PRODUCT TIMER ONLY Step 3 Select lt SET TIME DATE PROGRAM COMPUTER D lt PROGRAM COMPUTER TIME DATE TEMP STATUS 12 00 01 01 01 325 PROGRAM ACTION DISPLAY Step 4 Using the A and arrows enter access code A B C D E F Press or Y to scroll through letters and numbers then select
50. e is present Replace CPU If voltage is present Replace display IMPORTANT NOTICE Power must be disconnected at source when disconnecting any ribbon cable or any connector from CPU or Display Failure to do so will result in damage to the Display board and CPU 42 Defective back up toggle gt Confirm that toggle switch is in the ON position switch gt Check toggle switch for normal operation Defective back up relay gt Check for 208 240VAC at relay coil If no voltage is present gt Confirm that points are making If voltage is present Replace relay Defective component Confirm that 208 240VAC is feeding primary coil Confirm that 24V AC is at secondary coil Defective motor relay Check for 24VAC at relay coil If no voltage is present gt Confirm that points are making If voltage is present gt Replace relay Defective motor gt Check for 208 240VAC across and T7 T4 If no voltage is present gt Confirm that wires have continuity If voltage is present gt Replace motor NO MOTOR COMPUTER MODE IMPORTANT NOTICE Before trying to trouble shoot No Motor in Computer Mode confirm that motor is operational in Manual Mode PROBABLE CAUSE CORRECTIVE ACTION Defective output on CPU gt Check for 24VAC at JP12 for high or JP13 for low while oven is board calling for heat If no voltage is present gt Board is operating correctly If voltage is pre
51. ed cont Stands for CONTINUOUS The oven has been programmed without a time being entered The oven will operate continuously at the programmed temperature Error An entry has been made during the programming which the computer does not understand 16 ECCO C PROGRAMMING CODES Below are codes which will allow you to configure the display or aid in the operation and troubleshooting of the oven The readout must display EntEr before the computer will accept any programming code If the readout displays any other word reset the computer by pressing and holding the R C button until display reads BBBBB then release Display should now read EntEr The control allows for a 3 second delay between each button push if a delay of longer than 3 seconds has occurred the programming code must be re entered The instructions call for pressing exactly what is shown under PRESS CODE DESCRIPTION OPERATIONAL Recall time remaining on a shelf Cancel a shelf timer DISPLAY MODES Countdown timer display Shelf in use display Internal oven temperature display PROGRAMMING Enter programming mode Recall an existing product program Erase a product program Model identification Fan Setting HI or Both Program download Contact Factory MAINTENANCE Actual oven temperature Return to ENTER SHELF COMPENSATION Enter shelf compensation mode Set shelf compensations Return to ENTER 17 PRESS Shelf R C R C
52. ed gt Check across NO contacts Should have 208 240 VAC gt Replace if defective 39 JUBLESHOOTING ECCO C CO MOTOR Computer Mode PROBABLE CAUSE CORRECTIVE ACTION No 24 VAC on Interface board gt Check for 24 VAC at to common D If 24 VAC is not measured gt Check for 24 VAC at NC contacts on back up relay If 24 VAC is measured gt Check for 24 VAC at TPS gt Replace Interface board if defective NO HEAT Manual Mode NOTE Fan must be operating before trouble shooting No heat PROBABLE CAUSE CORRECTIVE ACTION Back up relay not energizing gt Check for 240 VAC on relay coil If 240 VAC is measured Turn unit off and gt Check back up relay coil for 7 2 gt Check NO contacts for 24 VAC gt Replace if defective If 240 VAC is not measured Check back up switch SPDT for normal operation Replace if defective Defective thermostat Turn unit off and check for continuity while cycling thermostat on and off Replace if defective Defective contactor Check for 24 VAC at heater coil If 24 VAC is measured Turn oven off and gt Check for continuity through coil gt Replace if defective If 24 VAC is not measured Turn oven off and gt Check for continuity through hi temp wires going to over temp thermostat gt Replace over temp thermostat if defective Defective elements gt Check elements for continuity gt Replace if
53. ements gt Check that elements are getting power gt Confirm that Elements are working correctly See Technical Data for correct ratings pod Transformer gt Check transformer for normal NE if necessary Defective Probe gt Confirm that probe has proper resistance for the correct temp See Technical Data for correct ratings Defective Heat Contactor Confirm that Contactor is getting correct voltage gt Confirm that Contactor is operating properly 24VAC 60 36 JBLESHOOTING 1 Defective Circuit board gt Confirm that Heat Call light is on If no light is detected gt Check 12 position switch for normal operation See Technical Data for correct ratings If light is detected gt Check for 24V AC across heat output and on 12 Pole terminal If voltage is not present Replace Circuit board If voltage is present gt Check over temperature thermostat for proper operation gt Check door switch for normal operation 37 OUBLESHOOTING ECCO To help troubleshoot the oven you should perform the following Manual Override test Open drop down door located on the lower right side directly below front panel Turn back up toggle on off switch to on position Turn main power switch to on position Check oven for normal operation VVVVV NO DISPLAY PROBABLE CAUSE CORRECTIVE ACTION Defective power switch gt Check power switch for norm
54. en Lamp Lens Gasket 31604 02 Circuit Breaker 208 240 Volt 1 Pole 31800 01 Circuit Breaker 480 Volt 3 Pole 31800 04 Circuit Board Temperature Control 40101 19 Probe Temperature Sensor 41100 08 Turn Buckle Assembly 50312 02 Door Left Hand 51100 45 Door Right Hand 51100 46 Panel Label Accu Plus 60301 100 Handle Assembly Single handle Oven 70603 15 Knob Damper Black 70701 25 Knob Temperature Timer Control 70701 28 Window Assembly 71301 04 Blower Wheel 71500 05 Rack 50200 20 Rack Slide Before B 36357 50200 36 Rack Slide After B 36357 50200 93 Extra Deep Rack 50200 31 Extra Deep Rack Slide Before 38832 50200 33 Extra Deep Rack Slide After 38832 50200 94 65 PARTS LIST ECCO DESCRIPTION PART NO Element ECCO Oven 208 240 Volt 11000 Watts 11090 16 Element ECCO Oven 480 Volt 11000 Watts 11090 18 Motor 1 3 HP 480 Volt Before F 79818 no pulse fan Before H 90435 with pulse fan 30200 03 Motor 1 3 HP 115 208 240 Volt Before F 79818 no pulse fan Before H 90435 with pulse fan 30200 12 Motor 1 3 HP 480 Volt 2 Speed After F 79819 no pulse fan After H 90436 with pulse fan 30200 16 Motor 1 3 HP 208 240 Volt 2 Speed After F 79819 no pulse fan After H 90436 with pulse fan 30200 17 Switch Micro Convection Oven Door 30301 02 Switch Toggle On Off 30303 06 Switch Toggle Spring Return 30303 16 Thermostat Safety 490 F Open 30401 09 Terminal Strip 3 Pole 30501 02 Contactor 3 Pole 24 VAC 30700 06 Contactor 2 Pole 2
55. ep After 38832 50200 94 66 PARTS LIST ECCC DESCRIPTION PART NO Element ECCO Oven 208 240 Volt 11000 Watts 11090 16 Element ECCO Oven 480 Volt 11000 Watts 11090 18 Motor 1 3 HP 480 Volt 30200 03 Motor 1 3 HP 115 208 240 Volt 30200 12 Motor 1 3 HP 480 Volt 2 Speed After Serial V 90436 30200 16 Motor 1 3 HP 208 240 Volt 2 Speed After Serial V 90436 30200 17 Switch Micro Convection Oven Door 30301 02 Switch Toggle On Off 30303 06 Switch Toggle Spring Return 30303 16 Thermostat Safety 490 F Open 30401 09 Thermostat 450 F Oven 30402 27 Terminal Block 24 Position Quick Disconnect 30503 01 Relay 240 VAC 30600 02 Contactor 3 Pole 24 VAC 30700 06 Contactor 2 Pole 208 240 VAC 30701 03 Contactor 2 Pole 30 Amp 24 VAC After Serial V 90436 30701 05 Fuse 15 AMP 300 Volt 30900 10 Fuse Holder 15 Amp 30901 08 Cable Ribbon Assembly 31110 01 Transformer 480 240 VAC 31400 04 Transformer 120 208240 24 VAC 31400 07 Transformer 240 12 VAC 31400 26 Lamp Socket 31602 04 Lamp Incandescent 250 Volt Clear 31603 04 Oven Lamp Lens Watch Glass 31604 01 Oven Lamp Lens Gasket 31604 02 Circuit Breaker 208 240 Volt 1 Pole 31800 01 Circuit Breaker 480 Volt 3 Pole 31800 04 Circuit Board Assembly Buzzer 40102 10 Circuit Board Front Panel 40102 20 Circuit Board Front Panel Mrs Fields 40102 21 Circuit Board Microprocessor 40102 44 Circuit Board Upgrade Kit Only for units before G 71021 60101 53 Snubber Low Voltage On Coil 3 Pole Contactor 407
56. erature is being used Decrease the temperature 15 25 F gt If products are pulling to the edge of pans or spilling the oven is not leveled or the pans are warped Correct as necessary gt Load each shelf evenly Spaces should be maintained equally between the pan and walls Front and back This will allow an even distribution of airflow BAKING gt Most baking should be done with the vent closed Open the vent only with high moisture products to avoid seepage around the front of the door gt Always weigh your product This will give you a more consistent size color and quality gt Center the pan in the oven The better the air flow around the product the better the bake gt The convection oven is a mechanical piece of equipment The same control settings will always give the same results If the results vary problems may be because of preparation not the oven LOADING gt Place product as close to oven as practical Open oven doors and load quickly but carefully gt If only one pan is required load on center shelf If two pans are required load on second and fourth shelf If three pans are required load on top shelf bottom shelf and center shelf If four pans are required load on top shelf bottom shelf and middle two shelves If five shelves are required space evenly in oven See page 27 for more detail UNLOADING gt Itis a characteristic of all convection ovens to unload the top shelf before the bottom shelves
57. g 24 VAC Measure between Thermostat terminal and D on the terminal block If voltage is not present gt Check Transformer for normal operation If voltage is present gt Check thermostat for continuity gt Replace as necessary 34 HINT Confirm that all Circuit Breakers are in the ON position NO MOTOR PROBABLE CAUSE CORRECTIVE ACTION Defective Fan Switch gt Verify that Fan switch is in ON position In pulse position motor will only cycle when oven calls for heat nee Fuses gt Check fuses for normal Transformer dicono Check transformer for normal operation Defective Motor Relay gt Check motor relay for normal operation 24VAC 35 Door Switch gt Check door switch for normal puc Motor Check motor for normal operation See Technical Data for correct ratings NO HEAT PROBABLE CAUSE CORRECTIVE ACTION Defective Elements Check that elements are getting power Confirm that Elements are working correctly See Technical Data for correct ratings Defective Transformer Check transformer for normal operation See Technical Data for correct ratings Replace if necessary Defective Probe Confirm that probe has proper resistance for the correct temp See Technical Data for correct ratings Defective Heat Contactor Confirm that Contactor is getting correct voltage Confirm that Contactor is operating properly 24VAC 6Q
58. g for heat board If no voltage is present gt Board is operating correctly If voltage is present gt Replace CPU ANOMALIES PROBABLE CAUSE CORRECTIVE ACTION Display will intermittently gt Check ribbon cable for good connections piani ont gt Check panel label buttons and confirm that none of the domes are collapsed If domes are collapsed Replace panel label Intermittently over heats or under cooks Check probe for proper resistance gt Check ribbon connection for good connection Check probe for good connection 45 ELEMENT RESISTANCE gt 208 Volt gt 480 Volt TRANSFORMER RESISTANCE TRANSFORMER Input Primary gt 208 24 Volt 208 240 Volt 770 gt 240 12 Volt 208 240 Volt 6300 gt 208 240 24 12 208 240 Volt 208Volts 240Volts 64 0 750 RESISTANCE Coil gt 3 Pole 24 Volt coil 60 gt 2 Pole 24 Volt coil P amp B PP amp PT motor 350 RELAY RESISTANCE RELAY 240VAC OVER TEMP THERMOSTAT OVER TEMP Wires DOOR SWITCH ECHNICAL DAT 160 600 Secondary 10 10 12Volts 24Volts 60 10 Coil 72 Normally closed Output 24 Volt 12 Volt 24 12 Volts gt Check switch between COM common and NO normally open contacts insure switch closes approximately 3 to 4 inches before door closes BLOWER FAN gt Blower fan will rotate clockwise and should have 5 8 gap between i
59. gle switch Off 208 240 VAC across coil of Back up relay Back up relay closes 24 VAC across and Back up Thermostat With door switch energized 24 VAC across coil of Motor relay Motor contactor closes 240 208 VAC across NO Normally open contacts of Motor relay Motor starts Temperature set on back up thermostat 24 VAC across D and each terminal of back up thermostat 24 VAC across coil of Heat contactor Heat contactor closes 208 240 volts to elements 32 Oven plugged in 208 240 VAC across any A and B terminal on the terminal block 208 240 VAC to Control transformer 208 240VAC 24 12 VAC and Component transformer 240VAC 24 Transformers energize 24 VAC to any C and D terminal on the terminal block 24 12 VAC to Circuit Board 40 24 VAC to Circuit Board outputs JP11 JP13 Power Switched turned to ON Display comes on Product selected 24 VAC across motor output JP12 and D 24 VAC across motor HI relay coil Motor relay closes 208 240 VAC to motor Motor Starts 24 VAC across heat output JP11 and D 24 VAC across heat contactor through over temperature thermostat Heat contactor closes 208 240 VAC to elements Back up toggle switch to 208 240 VAC across coil of back up relay coil Back up relay energizes 24 VAC to motor relay Motor relay energizes 208 240 VAC to motor Motor Starts 24 VAC
60. ing into the top of the lower oven Tip the top oven backwards and install two 3 8 inch socket head bolts found in the stacking kit into the two front leg holes that match the holes in the top of the lower oven Install the socket head bolts with the heads of the bolt pointing away from the oven Lift the top oven and gently set on top of the lower oven so that the heads of the socket head bolts nest into the holes in the top of the lower oven ELECTRICAL CONNECTION The electrical service entrance is provided by a 1 4 inch knockout in the bottom right front corner of each oven or at the oven back directly behind the control compartment Grounding lugs are provided at both the front and rear service entrances The 208 240 volt oven is a dual voltage oven and is shipped from the factory as 208 volt The oven must be field converted to operate on a 240 volt power supply To convert the oven to 240 volt remove the jumper wire located on a terminal strip located inside the lower portion to the control compartment On newer oven a toggle switch is provided at the back of the unit for this purpose With 480 volt installations check to be sure that the motor rotates in a clockwise direction as viewed from the front of the oven To reverse the motor rotation switch any two incoming power supply leads and recheck the rotation Supply wire size must be large enough to carry the amperage load for the number of ovens being installed Wire size inform
61. its 51100 57 Orifice Water Steam 60 DRL Steam Units 80405 01 68 PARTS LIST ECCO DESCRIPTION PART NO Element ECCO Oven 208 240 Volt 11000 Watts 11090 16 Element ECCO Oven 480 Volt 11000 Watts 11090 18 Motor 1 3 HP 480 Volt 2 Speed 30200 16 Motor 1 3 HP 208 240 Volt 2 Speed 30200 17 Switch Micro Convection Oven Door 30301 02 Switch Toggle On Off 30303 06 Switch Toggle Spring Return 30303 16 Thermostat Safety 490 F Open 30401 09 Thermostat 450 F Oven 30402 27 Terminal Block 24 Position Quick Disconnect 30503 01 Relay 240 VAC 30600 02 Contactor 3 Pole 24 VAC Heat 30700 06 Contactor 2 Pole 24 VAC 208 240 VAC only 30701 05 Contactor 2 Speed Motor 24 VAC 480V Only 30705 03 Fuse 15 AMP 300 Volt 30900 10 Fuse Holder 15 Amp 30901 08 Cable Ribbon Assembly 31110 13 Transformer 480 24 VAC 31400 15 Transformer 240 12 VAC 31400 26 Lamp Socket 31602 04 Lamp Incandescent 250 Volt Clear 31603 04 Oven Lamp Lens Watch Glass 31604 01 Oven Lamp Lens Gasket 31604 02 Circuit Breaker 208 240 Volt 1 Pole 31800 01 Circuit Breaker 480 Volt 3 Pole 31800 04 Circuit Board Front Panel 40102 24 Circuit Board Microprocessor 40102 26 Circuit Board Microprocessor with Modem 40102 29 Probe Temperature Sensor 41100 08 Oven Rack 50200 20 Oven Rack Slide 50200 36 Turnbuckle Assembly 5031 2 02 Door Left Hand 51100 45 Door Right Hand 51100 46 Panel Label Purple Plus 60301 116 Valve Manual Main Water Supply Steam Units 70400 02 Va
62. lear programs and to access program menu Function keys Keys are active when a program option is displayed on COSE EN display Alpha Numeric Display Cancel button When scrolling through menu s this will allow you to back up to the previous menu automatically turn off In program mode this will allow you to advance to the next step x V ii Power switch Cancel Up Down ight On Off Light switch Inspection light only Push for light to come on Light will Arrow down button Allows Arrow up button Allows you to scroll down you to scroll up PLATIMUM 13 PROGRAMMING TER CONTROL PANEL BUTTONS 1 0 Product Buttons These are the buttons where the product programs are stored Pressing a Product Button will heat the oven to the programmed temperature A E Shelf Buttons The control is capable of timing each shelf individually Pressing a Product Button then a Shelf Button will start the countdown timer Man Prog The MANUAL PROGRAM button allows the operator to enter a temporary product program without being required to input the programming code The temporary program is erased when the oven is turned off or when a new program is entered Time and temperature are the only parameters that can be entered in the Manual Program mode READ CLEAR The READ CLEAR button has several functions gt Itis always the first button pressed
63. lve Manual Water Supply Steam Units 70402 08 Valve Solenoid 24 60V Water Supply Steam Units 70403 01 Regulator Water Supply Steam Units 70404 01 Handle Assembly Single Handle Oven 70603 15 Knob Thermostat 450 F Oven 70701 28 Knob Damper Black 70701 25 Window Assembly Oven Door 71301 04 Blower Wheel 71500 05 Blower Wheel Steam Units 51100 57 Orifice Water Steam 60 DRL Steam Units 80405 01 69 PARTS LIST ECCO F DESCRIPTION PART NO Element ECCO Oven 208 240 Volt 11000 Watts 11090 16 Element ECCO Oven 480 Volt 11000 Watts 11090 18 Motor 1 3 HP 480 Volt 2 Speed 30200 16 Motor 1 3 HP 208 240 Volt 2 Speed 30200 17 Switch Micro Convection Oven Door 30301 02 Switch Toggle Spring Return 30303 16 Thermostat Safety 490 F Open 30401 09 Thermostat 450 F Oven 30402 27 Terminal Block 24 Position Quick Disconnect 30503 01 Relay 240 VAC 30600 02 Contactor 3 Pole 24 VAC 30700 06 Contactor 2 Pole 24 VAC 208 240 VAC only 30701 05 Contactor 2 Speed Motor 24 VAC 480 VAC only 30705 03 Fuse 15 AMP 300 Volt 30900 10 Fuse Holder 15 Amp 30901 08 Cable Ribbon Assembly 31110 13 Transformer 480 24 VAC 31400 15 Transformer 240 12 VAC 31400 26 Lamp Socket 31602 04 Lamp Incandescent 250 Volt Clear 31603 04 Oven Lamp Lens Watch Glass 31604 01 Oven Lamp Lens Gasket 31604 02 Circuit Breaker 208 240 Volt 1 Pole 31800 01 Circuit Breaker 480 Volt 3 Pole 31800 04 Circuit Board Display 40102 25 Circuit Board Microprocessor 40102 26
64. nce the cursor Since 0 is the next two numbers simply select ENTER again twice to advance the cursor TIER COOK me D gt 00 45 00 USE Av KEYS TO SELECT oS 2 APPLE TIER 1 TEMP 320F ACCEPT lt ENTER 21 OGRAMMING ECCO PT CON ACTION DISPLAY Step 11 SELECT COOKING CURVE Press A or to select numbers select ENTER to move the cursor to the next space Cooking curve may be any number between 0 and 100 SELECT COOKING CURVE 000 USE Av KEYS TO SELECT EXAMPLE 80 Select ENTER once to advance a the cursor one space then press A eight pz APPLE times for a 8 Select ENTER to advance the cursor Since 0 is the next number select ENTER to advance to TIER 1 the next screen TEMP 320F TIME 00 45 00 lt ACCEPT ENTER ACTION DISPLAY Step 12 SELECT FAN SPEED The cursor will SELECT FAN SPEED automatically appear under HIGH that is HIGH LOW your default setting Press ENTER or ACCEPT to keep high fan and advance to USE AY KEYS TO SELECT the next screen If LOW is the correct setting press the A or v to move the cursor to low Once low is selected select ENTER or ACCEPT to move to the next screen APPLE TIER 1 TEMP 320F TIME 00 45 00 COOKING CURVE 80 lt ACCEPT lt ENTER 22 OGRAMMING ECCO PT CON ACTION DISPLAY Step 13 SELECT PULSE RATE Press
65. or 61111 153 A PARTS LIST ECCC DESCRIPTION PART NO Element ECCO Oven 208 240 Volt 11000 Watts 11090 16 Element ECCO Oven 480 Volt 11000 Watts 11090 18 Element ECCO Oven 380 Volt 11000 Watts 11090 30 Motor 1 3 HP 480 Volt Before F 90435 30200 03 Motor 1 3 HP 115 208 240 Volt Before F 90435 30200 12 Motor 1 3 HP 480 Volt 2 Speed After H 90436 30200 16 Motor 1 3 HP 208 240 Volt 2 Speed After H 90436 30200 17 Switch Micro Convection Oven Door 30301 02 Switch Toggle On Off 30303 06 Switch Toggle Spring Return 30303 16 Thermostat Safety 490 F Open 30401 09 Thermostat 450 F Oven 30402 27 Terminal Strip 3 Pole 30501 02 Contactor 3 Pole 24 VAC 30700 06 Contactor 2 Pole 24 VAC 30701 04 Contactor 2 Pole 30 Amp 24 VAC 30701 05 Contactor 2 Speed Motor 24 VAC 480 VAC only 30705 03 Timer Electric 1 Hour 24V After H 90436 30800 05 Timer Mechanical Long Ring Before F 90435 30801 01 Buzzer Electric Timer 24V After H 90436 30802 04 Fuse 15 AMP 300 Volt 30900 10 Fuse Holder 15 Amp 30901 08 Transformer 120 208 240 24 VAC 31400 07 Transformer 480 24 VAC 31400 15 Transformer 380 24 VAC 31400 18 Pilot Light 28 VAC 31601 07 Lamp Socket 31602 04 Lamp Incandescent 250 Volt Clear 31603 04 Oven Lamp Lens Watch Glass 31604 01 Oven Lamp Lens Gasket 31604 02 Circuit Breaker 208 240 Volt 1 Pole 31800 01 Circuit Breaker 480 Volt 3 Pole 31800 04 Rack 50200 20 Rack Slide Before H 36961 50200 36 Rack Slide After H 36961 5020
66. program press the E button to continue programming other products If the program is a multi tiered program continue by programming the next tiers When complete press the E button Prad When the programs have been completely entered press the R C button to save and exit the programming cycle EntEr 15 ECCO C STATUS DISPLAY The Status Display informs the operator of the oven s status It can be used as a countdown timer shelf in use or internal oven temperature display during the cooking cycle see ECCO C Programming Codes pg 16 The Display informs the operator when the oven is ready to bake or if the oven is above or below the programmed temperature Below is a list of displays and their definitions EntEr The oven is energized and ready for an operator command PrEhE Stands for PREHEAT A product has been selected and the oven is heating to the programmed temperature A product has been selected and the oven has preheated to the programmed temperature The oven is ready to load a product cool The oven s internal temperature is below what is programmed hot The oven s internal temperature is above what is programmed A product selection has been made after the oven has preheated and the computer is asking which shelf the product is placed on There is fault in the control system the computer will not operate until service is perform
67. s require the fan to be Off for the first half of the cooking cycle then turn On for the last half Tier 1 would be programmed with the fan in the Off mode then Tier 2 would be fan On The Tier lamps located below the display labeled T1 T2 T3 and T4 will illuminate to indicate which Tier is being programmed or which Tier the program is in during the cooking cycle 14 PROGRAMMING PROGRAMMING ECCO ACTION DISPLAY Turn the power switch on If the oven is already on turn it off and then back on EntEr Quickly enter access code R C 1 6 2 7 38 Do not hold the R C button Prad Select a Product number from 0 9 5E 00 Select amount of time that product should steam If no steam is required press the shelf A button to advance to the next step PF Note If oven is not strapped for steam convection then this step will not be provided Select a Temperature from 150 F 450 F NOTE Entering 000 will erase the existing c cul 1 program Select the desired cooking curve from 0 7 FHna 2 Enter a desired Fan setting Will make the fan pulse with the heat lt P FAnanh 1 Will make the fan run on high continuously 2 Will make the fan run on low continuously ruv gu LC Lt Enter the desired cooking time hours minutes seconds rui The program is now entered for single tier
68. sent gt Replace CPU 43 SLESHOOTING ECCO PP ECCO PT C NO HEAT MANUAL MODE PROBABLE CAUSE CORRECTIVE ACTION Defective back up toggle gt Confirm that toggle switch is in the ON position switch gt Check toggle switch for normal operation Defective back up relay gt Check for 208 240VAC at relay coil If no voltage is present gt Confirm that points are making If voltage is present Replace relay Defective component Confirm that 208 240VAC is feeding primary coil Confirm that 24V AC is at secondary coil Defective Thermostat Confirm that thermostat has 24VAC If no voltage is present gt Check component transformer and wiring for normal operation If voltage is present gt Check thermostat for normal operation Replace as necessary Defective heat contactor gt Check for 24VAC at relay coil If no voltage is present gt Confirm that points are making If voltage is present gt Replace contactor Defective elements gt Check for 208 240V AC across elements If no voltage is present gt Confirm that wires have continuity If voltage is present gt Replace elements 44 SLESHOOTING ECCO PP ECCO PT C NO HEAT COMPUTER MODE IMPORTANT NOTICE Before trying to trouble shoot No Heat in Computer Mode confirm that the oven heats in Manual Mode PROBABLE CAUSE CORRECTIVE ACTION Defective output on CPU gt Check for 24VAC at JP11 while oven is callin
69. t and the back wall of the can 46 AUTO BYPASS SWITCH The Auto Bypass and Energy switch are located below the controls behind a pull down access panel Auto Bypass switch Normally in OFF The ON position will interrupt power to the computer and allow use of the back up thermostat Normally in HIGH for 11 kW heats LOW WILL PROVIDE 8 25 kW heat Not provided on Steam convection ovens e Energy switch LINE AMPERAGE WATTAGE AND PROPER PHASING NORMAL AMPS PER LINE SINGLE MODEL TOTAL K W THREE PHASE PHASE NUMBER CONNECTION 208 VOLT 240 VOLT 480 VOLT 208 V 240V 11 12 13 11 12 13 11 12 13 11 66 37 0 37 0 22 9 28 9 28 9 26 5 16 5 16 5 10 2 56 0 48 6 2ECCO 23 33 60 0 74 2 60 0 55 3 57 7 55 3 26 0 33 0 26 0 112 0 97 2 SERVICE CONNECTIONS FRONT WIRE CONNECTIONS 3 PHASE 1 PHASE LINE 1 LINE2 LINE3 LINE1 LINE2 1 OVEN 1 4 2 3 1 3 2 4 2 OVEN 1 4 7 2 5 8 3 6 1 3 5 7 2 4 6 8 REAR CONNECTION WIRE NUMBERS 1 OVEN 5 8 6 7 5 7 6 8 2 OVEN 7 5 8 6 5 7 5 7 6 8 6 8 ECCO PT PP COOKING CURVE CONVERSION Old Style Purple New Style Platinum Purple Plus 0 0 1 17 2 26 3 40 4 50 5 56 6 63 7 71 47 ECHNICAL DATA CONT PROBE RESISTANCE TEMP RESISTANCE VOLT DROP TEMP RESISTANCE VOLT DROP Probe is factory che
70. t board 24VAC across Motor output on circuit board and D 24 VAC across coil of Motor relay through door switch Motor relay closes Motor starts 24 VAC across Heat output on circuit board and D 24 V AC across coil of Heat contactor through over temperature thermostat Heat contactor closes 208 240 volts to elements Oven heats 31 Power switch turned on 240 208 VAC across Common terminals on power switch and A terminal of 24 pin Terminal block 240 208 V AC across any A and terminal of 24 pin Terminal block 240 208 VAC to Common terminals of Motor relay 240 208 V AC across common terminals of Back up toggle switch 120 VAC to coil of Back up relay 240 24 volt transformer energized 24 VAC across C and D common of 24 pin Terminal block 24 VAC across D and coil of Motor relay Through door switch 24 VAC across D and of Heat contactor Through door switch and high limit thermostat 24 VAC across D and Common terminals of Back up relay 240 12 volt transformer energized Back up toggle switch Off 24 VAC across D and TP5 and TP6 12 volts to TP1 on microprocessor 24 VAC across coil of motor contactor Motor contactor closes 240 208 VAC across NO Normally open contacts of Motor relay Motor starts 24 VAC across coil of Heat contactor Heat contactor closes 208 240 volts to elements Oven heats Back up tog
71. to thermostat Temperature set on thermostat 24 VAC to heat contactor Contactor energizes 208 240 VAC to elements 33 TROUBLESHOOTING ECC HINT Confirm that all Circuit Breakers are in the position NO MOTOR PROBABLE CAUSE CORRECTIVE ACTION Defective Fan Switch gt Verify that Fan switch is in ON position In pulse position motor will only cycle when oven calls for heat Defective Fuses Fuses gt Check fuses for normal gt Check fuses for normal operation CL NENNEN Transformer EESTI MEE Check transformer for normal operation See Technical Data for correct ratings Defective Motor Relay gt Check motor relay for normal operation 24 35 Defective Door Switch Door Switch gt Check door switch for normal gt Check door switch for normal operation Motor 2 Check motor for normal operation See Technical Data for correct ratings NO HEAT PROBABLE CAUSE CORRECTIVE ACTION Defective Elements gt Check that elements are getting power gt Confirm that Elements are working correctly See Technical Data for amperage Defective Transformer gt Check transformer for normal operation See Technical Data for correct ratings gt Replace if necessary Defective Heat Contactor gt Confirm that Contactor is getting correct voltage gt Confirm that Contactor is operating properly 24VAC 6Q Defective Thermostat gt Confirm that Thermostat is gettin
72. tor relay 240 24 volt transformer energized 24 VAC across and D common of 12 pin Terminal block 24 VAC across coil of Motor relay Through door switch 24 VAC across D and of Heat contactor Through door switch and high limit thermostat Motor contactor closes Motor starts Thermostat Turned On 24 VAC across coil of Heat contactor Heat contactor closes 208 240 volts to elements Oven heats QUENCE OF OPERATION ECC Power switch turned on 240 208 VAC across Common terminals on power switch and B terminal of 12 pin Terminal block 240 208 VAC to Common terminals of Motor relay 240 24 volt transformer energized 24 VAC across and D common of 24 pin Terminal block 24 VAC across coil of Motor relay Through door switch 24 VAC across D and of Heat contactor Through door switch and high limit thermostat 24 VAC across D and Heat output on board Motor contactor closes Motor starts 24 VAC across coil of Heat contactor Heat contactor closes 208 240 volts to elements Oven heats 30 UENCE OF OPERATION Power switch turned on 240 208 VAC across Common terminals on power switch and B terminal of 12 pin Terminal block through fuses 240 208 VAC to Common terminals of Motor relay 240 24 volt transformer energized 24 VAC across and D common of 24 pin Terminal block 24 VAC across pins 1 amp 2 on circui

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