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Lang Manufacturing Company

6500 Merrill Creek Parkway

Everett, WA 98203

Phone: 1-800-224-5264 Fax: 1-425-349-2733

www.langworld.com

Service Manual for the Lang Models:

ECCO-AP, ECCO-C, ECCO-PP, ECCO-PT, ECCO-SII,

ECCO-T

Содержание ECCO-AP

Страница 1: ...uring Company 6500 Merrill Creek Parkway Everett WA 98203 Phone 1 800 224 5264 Fax 1 425 349 2733 www langworld com Copyright 2000 Service Manual for the Lang Models ECCO AP ECCO C ECCO PP ECCO PT ECC...

Страница 2: ...UIPMENT DESCRIPTION 4 4 INSTALLATION 6 5 START UP 7 6 CONTROL PANEL LAYOUT 8 7 PROGRAMMING TERMS 14 8 PROGRAMMING 16 9 GENERAL OPERATION 26 10 TYPICAL OPERATION 28 11 SEQUENCE OF OPERATION 32 12 TROUB...

Страница 3: ...AMAGE TO EQUIPMENT UNIT MUST BE INSTALLED IN ACCORDANCE WITH ALL APPLICABLE CODES NOTICE The data plate is located above control panel behind wire mesh screen The oven voltage wattage serial number wi...

Страница 4: ...this or any other LANG appliance must be performed by qualified personnel only Consult your authorized service station directory or call the factory at 1 800 224 LANG 5264 or WWW LANGWORLD COM for th...

Страница 5: ...tructed of porcelainized stainless steel OPERATION The ECCO oven is a forced air convection oven with a adjustable vented oven cavity The air is driven by a 1 3 HP fan motor CONTROLS The ECCO is avail...

Страница 6: ...automatically Programmable up to 99 products advanced baking capabilities include a 12 59 59 timer with ten tiers Independent Shelf Timer for each Shelf Load Control through use of Cooking Curves Shel...

Страница 7: ...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 in...

Страница 8: ...ct Yes No 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 manual program in t...

Страница 9: ...8 CONTROL PANEL ECCO AP...

Страница 10: ...9 CONTROL PANEL LAYOUT ECCO C...

Страница 11: ...10 CONTROL PANEL LAYOUT ECCO PP...

Страница 12: ...l advance you to the next step Moves up through the alphabet numerals and icons Moves down through the alphabet numerals and icons Inspection light feature Light will turn off automatically Turns the...

Страница 13: ...12 CONTROL PANEL ECCO SII...

Страница 14: ...13 CONTROL PANEL ECCO T...

Страница 15: ...when entering programming codes Pressing it twice then pressing a Product Button will read back the program in that product button Pressing and holding the button down until 88888 appears in the displ...

Страница 16: ...ff continuously TIER Tiered programming is the ability to change the cooking temperature or fan function during the cooking cycle As an example some products require the fan to be Off for the first ha...

Страница 17: ...ve CC number 7 The display will now read Fan01 Press 1 if the program requires the fan ON or press 0 if the program requires the fan OFF 8 The display will now read 0 00 00 Enter the baking cooking ti...

Страница 18: ...call for pressing exactly what is shown under PRESS CODE DESCRIPTION PRESS OPERATIONAL Recall time remaining on a shelf Shelf Cancel a shelf timer R C R C Shelf DISPLAY MODES Countdown timer display R...

Страница 19: ...R COOKING TIME HR MIN SEC NOX T1 XXXF CO Enter the cooking time and then press E to advance to the next screen ENTER COOKING CURVE 0 TO 100 NOX T1 XXXF CXX XX XX XX PXXX F XX Enter the desired cooking...

Страница 20: ...cursor to the right Example Press up once for an A then press Enter Press up twice for a B then press Enter Continue through F The screen will advance automatically when the code is entered correctly...

Страница 21: ...wn until you find an Icon that best resembles your product Scroll up to go backward through the Icon list Press Enter to select your Icon and move to the next screen Program Products Edit Ready Zone E...

Страница 22: ...nly _unconfigured ured must be replaced by blanks A blank can be found before A or after 9 when scrolling There are 15 spaces available for your product s name STEP 9 Select Product Temperature Use th...

Страница 23: ...simply press Enter again twice to advance the cursor STEP 11 Select Cooking Curve Use the up and down arrows to select numbers press Enter to lock in each choice and move the cursor to the next space...

Страница 24: ...xt space The fan pulse rate has been established for your product enter that number It must be between 0 100 100 is a default if you are not sure press Enter three times to advance the screen and main...

Страница 25: ...to the beginning and allow you to correct any part of the program you entered STEP 15 Continue to Next Tier The cursor automatically appears on NO Press Enter to end programming or move the cursor wit...

Страница 26: ...creen to program more products If no other products need to be programmed press Cancel three times to advance screen to the beginning STEP 17 You may now preheat the oven for any products you have pro...

Страница 27: ...ng should be done with the vent closed Open the vent only with high moisture products to avoid seepage around the front of the door Always weigh your product This will give you a more consistent size...

Страница 28: ...27 GENERAL CONT D ONE PAN TWO PAN THREE PAN FOUR PAN FIVE PAN...

Страница 29: ...elow what is programmed Hot Hot Hot Hot The oven s internal temperature is above what is programmed ShELF ShELF ShELF ShELF A product selection has been made after the oven has preheated and the compu...

Страница 30: ...s DONE DONE DONE DONE shelf button s flash Press the flashing shelf button s Beeper stops Display shows READY READY READY READY if no other shelves carry product or resume count down for shelves that...

Страница 31: ...own timer and begins to count toward zero 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...

Страница 32: ...n power switch to ON Adjust proper temperature between 140 450 degrees and allow to preheat up to 20 minutes Oven begins heating Open oven doors and insert product set timer up to 60 minutes Timer beg...

Страница 33: ...0 24 volt transformer energized 24 VAC across C 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 an...

Страница 34: ...up relay 240 12 volt transformer energized Back up toggle switch Off 24 VAC across D and TP4 TP5 and TP6 12 volts to TP1 on microprocessor 24 VAC across coil of motor contactor Motor contactor closes...

Страница 35: ...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 acros...

Страница 36: ...former energized 24 VAC across C and D common of 24 pin Terminal block 24 VAC across pins 1 2 on circuit board 24VAC across Motor output on circuit board and D 24 VAC across coil of Motor relay throug...

Страница 37: ...ctive Elements Check that elements are getting power Confirm that Elements are working correctly See Technical Data Defective Transformer Check transformer for normal operation Replace if necessary De...

Страница 38: ...ation NO DISPLAY PROBABLE CAUSE CORRECTIVE ACTION Power switch is not turned on Turn power switch on Defective power switch Check power switch for normal operation Replace as necessary Defective back...

Страница 39: ...s than 10 5 VAC on TP1 and 5 VDC on TP2 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 repl...

Страница 40: ...or 240 VAC on relay coil Back up relay not energizing If 240 VAC is measured Turn unit off and Check back up relay coil for 7 2 K Replace if defective If 240 VAC is not measured Check back up switch S...

Страница 41: ...Check circuit breaker If 208 240 VAC is measured Check across NO contacts Should have 208 240 VAC Replace if defective Note Motor should now be operating NO MOTOR COMPUTER MODE PROBABLE CAUSE CORRECTI...

Страница 42: ...eck 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 contact...

Страница 43: ...VAC is not measured Check for 24 VAC at NC contacts on back up relay If 24 VAC is measured Check for 24 VAC at TP6 Replace Interface board if defective DISPLAY LOCKS UP PROBABLE CAUSE CORRECTIVE ACTIO...

Страница 44: ...PROBABLE CAUSE CORRECTIVE ACTION Oven temp is not the same as Display temp Check probe for correct resistance IF PROBE RESISTANCE IS MORE THAN 10 REPLACE PROBE IF CORRECT RESISTANCE IS MEASURED Check...

Страница 45: ...relay Verify 24V on coil of Hi motor relay Verify 24V at control transformer on the secondary side If voltage is not present check primary side No motor in manual back up Check voltage at motor P1 T7...

Страница 46: ...CTED If display is on but no output from computer jumper output on CPU If output comes on replace CPU Can t enter program in Computer A button may be stuck in replace button label Display has light le...

Страница 47: ...is present Confirm that voltage is coming in from transformer Replace circuit board If voltage is present Check motor relay for normal operation 24 VAC 35 Check door switch for normal Check motor for...

Страница 48: ...o light is detected Check 12 position switch for normal operation See Technical Data If light is detected Check for 24VAC across heat output and D on 12 Pole terminal If voltage is not present Replace...

Страница 49: ...24Volts 1 24 12 Volts CONTACTOR RESISTANCE CONTACTOR Coil 3 Pole 24 Volt coil 6 2 Pole 24 Volt coil P B PP PT motor 35 RELAY RESISTANCE RELAY Coil 240 VAC 7 2 K OVER TEMP THERMOSTAT OVER TEMP Wires No...

Страница 50: ...on ovens LINE AMPERAGE WATTAGE AND PROPER PHASING NORMAL AMPS PER LINE THREE PHASE SINGLE PHASE 208 VOLT 240 VOLT 480 VOLT 208 V 240V MODEL NUMBER TOTAL K W CONNECTION L1 L2 L3 L1 L2 L3 L1 L2 L3 ECCO...

Страница 51: ...50 ECCO PT PP COOKING CURVE CONVERSION O l d S t y l e P u r p l e N e w S t y l e P l a t i n u m P u r p l e P l u s 0 0 1 17 2 26 3 40 4 50 5 56 6 63 7 71...

Страница 52: ...0 1054 2 11 180 709 1 42 400 1072 2 14 190 724 1 45 410 1090 2 18 200 739 1 48 420 1109 2 22 210 754 1 51 430 1127 2 25 220 769 1 54 440 1146 2 29 230 785 1 57 450 1165 2 33 240 800 1 60 460 1184 2 37...

Страница 53: ...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 mod...

Страница 54: ...53 TECHNICAL DATA CONT D ECCO C TEST POINT LAYOUT TP 2 TP 1 TP 3 TP 4 TP5 TP6 TP7...

Страница 55: ...55 WIRING DIAGRAM ECCO AP 208 240...

Страница 56: ...56 WIRING DIAGRAM ECCO AP 480...

Страница 57: ...57 WIRING DIAGRAM ECCO C 208 240...

Страница 58: ...58 WIRING DIAGRAM ECCO C 480...

Страница 59: ...59 WIRING DIAGRAM ECCO PP 208 240...

Страница 60: ...60 WIRING DIAGRAM ECCO PP 480...

Страница 61: ...61 WIRING DIAGRAM ECCO PT 208 240...

Страница 62: ...62 WIRING DIAGRAM ECCO PT 480...

Страница 63: ...63 WIRING DIAGRAM ECCO SII 208 240...

Страница 64: ...64 WIRING DIAGRAM ECCO SII 480...

Страница 65: ...65 WIREING DIAGRAM ECCO T 208 240...

Страница 66: ...66 WIREING DIAGRAM ECCO T 480...

Страница 67: ...0800 05 Buzzer Electric Timer 24V 30802 04 Fuse 15 Amp 300 Volt 30900 10 Fuse Holder 15 Amp 30901 08 Transformer 240 24 VAC 31400 10 Transformer 480 24 VAC 31400 15 Pilot Light 28 VAC 31601 07 Lamp So...

Страница 68: ...Amp 30901 08 Cable Ribbon Assembly 31110 01 Transformer 480 240 VAC 31400 04 Transformer 240 24 VAC 31400 10 Transformer 240 12 VAC 31400 26 Lamp Socket 31602 04 Lamp Incandescent 250 Volt Clear 3160...

Страница 69: ...dle 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 Valve Manual Main Water Supply S...

Страница 70: ...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...

Страница 71: ...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...

Страница 72: ...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 240 24 VAC 31400 10 Transformer 480 24 VAC 31400...

Страница 73: ...24 VAC 30701 05 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...

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