Service Manual for the Lang Models:
Contents
1. Service Manual for the Lang Models 325 1 325 2 325 3 325 4 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 SS 7 CHAPTER PAGE TABLE Or 1 READ FIRST 2 EGQUIPMENT DESCRIPTION uuu u uu u una anasu st bass 4 INSTACTATION 5 SLA I 342 eaa E O R 6 7 SEQUENCE OF 9 5 10 TECRHNIGACDA TA 12 WIRING DIAGRAMS 14 FARTS Pl axed uuu unun n us 17 IMPORTANT READ FIRST IMPORTANT CAUTION EACH UNIT WEIGHS 370 LBS FOR SAFE HANDLING INSTALLER SHOULD 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 CAUTION ANY STAND COUNTER OR OTHER DEVICE ON WHICH RANGE WILL BE LOCATED MUST BE DESIGNED TO SUPPORT THE WEIGHT OF THE RANGE CAUTION SHIPPING STRAPS ARE UNDER TENSION AND CAN SNAP BACK WHEN CUT THIS APPLIANCE MUST BE GROUNDED AT THE TERMINAL PROVIDED FAILURE TO GROUND THE APPLIANCE COULD RESULT IN ELECTROCUTION AND DEATH INST2. is wired correctly Confirm that switch is operating correctly Confirm that French Plate is getting correct voltage Confirm that French Plate is operating correctly See Technical Data GRIDDLE GRIDDLE IS NOT HEATING PROBABLE CAUSE CORRECTIVE ACTION Incorrect wiring Confirm the griddle is wired correctly Confirm that range is phased correctly Defective Thermostat Confirm that thermostat is wired correctly Confirm that thermostat is operating correctly Defective Element Confirm that Element is getting correct voltage Confirm that Element is operating correctly See Technical Data 11 OVEN ELEMENT RESISTANCE VOLTS 208 240 Volt I S 208 240 Volt O S 480 Volt I S 480 Volt O S v v v v HOT TOP RESISTANCE VOLTS PART 208 Volt 11010 341 240 Volt 11010 351 480 Volt 11010 361 PART 11040 01 11040 02 1 1040 07 11040 08 PIN 1 2 1 3 1 4 2 3 2 4 3 4 1 2 1 3 1 4 A 2 4 3 4 i 1 3 1 4 28 2 4 3 4 FRENCH PLATE RESISTANCE VOLTS PART 208 Volt 11120 12 240 Volt 11120 13 480 Volt 11120 14 PIN 1 2 1 3 1 4 2 3 2 4 3 4 1 2 1 3 1 4 2 3 3 4 1 2 1 3 1 4 2 3 2 4 3 4 RESISTANCE 43 5 Q 43 5 Q 219 4 Q 225 8 Q RESISTANCE 4600 68 8 Q 2320 23 0 Q 23 4 Q 46 0 Q 61 50 92 20 30 9 Q 30 9 Q 3120 61 8 Q 249 0 Q 372 00 124 8 Q 124 2 Q 124 7 Q 248 7 00 RESISTANCE 130 Q 160 Q 45 00 29 00 84 0 Q 1140 173 Q 2120 59 0
3. one to control the top element and one to control the bottom element In addition the oven has a thermostat that controls the overall temperature of the oven 325 1 325 2 Four French plates controlled by four 6 heat switches Two French plates controlled by two 6 heat switches and one 12 x24 Hot top controlled by one 3 heat switch 325 3 325 4 Two 12 x24 Hot Tops controlled by two 3 heat switches One 24 24 1 2 grill plate controlled by two 450 thermostats ea eas GRIDDLE RECEIVING THE RANGE 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 Lang Manufacturing Company File your claim with the carrier Prior to un crating move the range 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 ELECTRICAL CONNECTION All connections can be made through 1 3 4 hole in the bottom of the oven Connections sh
4. 0 degrees Allow the range oven to saturate until all vapor and condensation has been eliminated For best operating results allow the range oven to thoroughly dry out Allow 8 to 12 hours for this process Clean top plates thoroughly Apply salad oil Turn each plate switch or thermostat to a low position and allow plate to heat for three hours OPERATION The range oven must be thoroughly preheated before satisfactory baking can be done The range oven will not bake uniformly if not sufficiently preheated To compensate for temperature drop when loading the range oven set the thermostat up 50 degrees over the desired temperature Reset thermostat after the range is loaded The range oven may of course be preheated with the 3 heat switches set at a lower position than High but the time required will be proportionally longer After preheating set the two 3 heat switches for proper ratio of top and bottom heat to suit the product to be baked or roasted The 12 high Roasting and Baking range oven is equipped with a removable rack For baking pies bread or for roasting operations the rack may be placed directly on the metal deck and the pans placed on the rack For baking cakes or pastries the rack should be located in the lower position provided by the rack supports at the sides of the range and the pans placed on the rack in this lower position The following temperature time switch setting and rack positions are suggested are a
5. 208 240 VAC to 3 heat switch 3 Heat switch turned on 208 240 VAC to elements FRENCH PLATE 208 240 VAC to 6 heat switch 6 Heat switch turned on 208 240 VAC to French plates GRIDDLE 208 240 VAC to Thermostat Thermostat turned on 208 240 VAC to elements OVEN Incorrect wiring Defective Thermostat Defective 3 heat switch Defective Element HOT TOP HOT TOP WILL NOT HEAT PROBABLE CAUSE CORRECTIVE ACTION Confirm the hot top is wired correctly Incorrect wiring Defective 3 Heat switch Defective Hot Top FRENCH PLATE OVEN WILL NOT HEAT gt Confirm that oven is getting proper voltage Confirm that range is phased correctly Confirm that thermostat is getting correct voltage Confirm that thermostat was operating properly Confirm that 3 heat switch is getting correct voltage Confirm that 3 heat switch 15 operating properly Check element for normal operation See Technical Data Confirm that range is phased correctly Confirm that switch is wired correctly Confirm that switch is operating correctly Confirm that Hot Tops are getting correct voltage Confirm that Hot Tops are operating correctly See Technical Data FRENCH PLATE WILL NOT HEAT PROBABLE CAUSE CORRECTIVE ACTION Incorrect wiring Defective 6 Heat switch Defective French Plate Confirm the French Plate is wired correctly Confirm that range is phased correctly Confirm that switch
6. 300 30 50300 38 50300 82 50301 09 50301 10 50301 11 50400 02 50401 01 50401 02 50800 07 50900 01 50900 02 50901 01 50901 02 60102 981 60102 982 51001 02 60102 06 70603 05 70701 04 70701 10 70701 16 70701 41 70701 51
7. ALLATION OF THE UNIT MUST BE DONE BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND OR DAMAGE TO EQUIPMENT UNIT MUST BE INSTALLED IN ACCORDANCE WITH ALL APPLICABLE CODES Hasard data plate is located behind access door below control panel The range voltage wattage serial number wire size and clearance specifications are on the data plate This information should be carefully read and understood before proceeding with the installation NOTICE The installation of any components such as a vent hood grease extractors fire extinguisher systems must conform to their applicable National State and locally recognized installation standards NOTICE During the first few hours of operation you may notice a small amount of smoke coming off the range or out of the oven and a faint odor from the smoke This is normal for a new range and will disappear after the first few hours of use CAUTION ALWAYS KEEP THE AREA NEAR THE APPLIANCE FREE FROM COMBUSTIBLE MATERIALS CAUTION KEEP FLOOR IN FRONT OF EQUIPMENT CLEAN AND DRY IF SPILLS OCCUR CLEAN IMMEDIATELY TO AVOID THE DANGER OF SLIPS OR FALLS IMPORTANT READ FIRST IMPORTANT KEEP WATER AND SOLUTIONS OUT OF CONTROLS NEVER SPRAY OR HOSE CONTROL CONSOLE ELECTRICAL CONNECTIONS ETC CAUTION MOST CLEANERS ARE HARMFUL TO THE SKIN EYES MUCOUS MEMBRANES AND CLOTHING PRECAUTIONS SHOU
8. LD 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 NOTICE Service on 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 the service station nearest you BOTH HIGH AND LOW VOLTAGES ARE PRESENT INSIDE THIS APPLIANCE WHEN THE UNIT IS ANGER HIGH VOLTAGE Electrical Hassard PLUGGED WIRED INTO ALIVE RECEPTACLE BEFORE REPLACING ANY PARTS DISCONNECT THE UNIT FROM THE ELECTRIC POWER SUPPLY CAUTION USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY LANG OR THEIR AUTHORIZED DISTRIBUTORS CAN CAUSE BODILY INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND WILL VOID ALL WARRANTIES ELECTRIC RANGE EXTERIOR gt The Range dimensions are 32 81 25cm High 30 76 20cm Deep and 30 76 20 cm Wide gt The Sides Bottom and Rear wall are constructed stainless steel gt The Range surface can come in 4 different configurations CONTROLS The 32 Series Range is available with various controls depending upon model number Shown below is a layout of each top configuration with its proper model number and a brief description of the controls All 32S Ranges have the same type of standard bake oven which has two 3 heat switches
9. ND ON KW PER PHASE TOTAL K W Li L2 L2 L3 tL 3 Li 14 ee ee ae 54 14 GRIDDLE HOT TOP Griddle and Top Plate Element Pilot Light 450 Griddle thermostat Circuit breakers French plate 6 Heat switch Hot Top SLEA ee 15 325 480 WIRING DIAGRA HEATING ELEMENT MODEL TOP ARRANGEMENT TOP SECTION WIRING DIAGRAMS DESIGNATION a SECTION 2 SPEED UNITS THERMOSTAT AUTOMATIC MANUAL EGO SPEED UNITS CONTROL HOT EGO _to W 6 HEAT SWT PLATE OR GRILL HOT PLATE IAGRAM OVEN WIRING D EXAMPLE FOR DETERMINING THE WIRINS OF A LANG RANGE U VIEWED FROM THE FRONT LEFT RIGHT THE TUL FOOT SECTIONAL ARRANGMENT FOR A 32S M G RANGE IS A AND C SEE TOPARRANGEMENT CHART EACH OF 2 3 CIRCUIT THE LETTERS REPRESENT ONE OF THE TOP SECTION BREAKERS WIRING DIAGRAMS ABOVE 2 THE POWER INPUT LEADS TO EACH SECTION AND THE OVEN ARE SHOWN AT LEFT CONNECTED TO THIER RESPECTIVE CIRCUIT BREAKERS 3 SERVICE CONNECTION CHART FOP PROPER SERVICE CONNECTION AMPS PER LINE CONNECTION OF CIRCUIT BREAKERS POWER 480 VOLT SUPPLY 225 RANGE WITH EGD HIT TDP ee Wier p u 3 USEON E SER NO AND ON 2 16 2 INCA 1 52 SERIES RANGE KW PER PER PHASE TOTAL KW gt 480 VOLT Li t2 12 13 L3 LI 1 W res 6101 07 a gt o ELECTRIC RA
10. NGE DESCRIPTION Element Top Plate 208V O S 2000 Watts Element Top Plate 208V I S 3000 Watts Element Top Plate 115VDC O S 2000 Watts Marine Units Only Element Top Plate 115VDC I S 3000 Watts Marine Units Only Element Top Plate 240V O S 2000 Watts Element Top Plate 240 1 5 3000 Watts Element Top Plate 480V O S 2000 Watts Element Top Plate 480V I S 3000 Watts Element Top Plate 380V O S 2000 Watts Marine Units Only Element Top Plate 380V I S 3000 Watts Marine Units Only Hot Plate Cast Assy w Elements 208V 5000 Watts After E 87101 Hot Plate Cast Assy w Elements 240V 5000 Watts After E 87101 Hot Plate Cast Assy w Elements 480V 5000 Watts After E 87101 Element 10 x 10 208 Volt 1000 Watts Before C 35556 Element 10 x 10 480 Volt 1000 Watts Before C 35556 Element 10 x 10 240 Volt 1000 Watts Before C 35556 Element 480 Volt 4000 Watts 18 Griddle Element 32 Oven 208 240 Volt I S 1000 Watts Element 32 Oven 208 240 Volt O S 1000 Watts Element 32 Oven 480 Volt 1 5 1000 Watts Element 32 Oven 480 Volt O S 1000 Watts Element 32 Oven 115VDC 1 5 1000 Watts Marine Units Only Element 32 Oven 115VDC O S 1000 Watts Marine Units Only Element 32 Oven 380 Volt 1 5 1000 Watts Marine Units Only Element 32 Oven 380 Volt O S 1000 Watts Marine Units Only Element Speed Unit 208 Volt 2100 Watts Before C 43809 Element Speed Unit 240 Volt 2100 Watts Before C 43809 Element Speed Unit 115VDC 2100 Watts Marine Units Only Eleme
11. Q 39 0 Q 114 Q 153 Q 690 Q 239 Q 850 Q 453 Q 158 Q 6100 AMPS 24 21 10 5 AMPS 12 5 11 5 5 GRIDDLE amp TOP PLATE ELEMENTS VOLTS PART RESISTANCE AMPS gt 208 Volt 1 5 11010 10 14 5 Q 14 5 gt 208 Volt O S 11010 09 21 50 9 5 gt 240 Volt I S 11010 22 19 00 12 9 gt 240 Volt O S 11010 21 28 0 Q 8 0 gt 480 Volt I S 11010 24 76 0 Q 6 0 gt 480 Volt O S 11010 23 115 00 4 0 6 SWITCH WIRING 3 HEAT SWITCH WIRING RANGE AMPERAGE AND WATTAGE Model Nominal Amps Per Line at Each Connection Shipping Number W Three Phase Single Phase Weight 208 Volts 240 Volts 480 Volts 240V V wa p 51 TOP ARRANGEMENT TOP SECTION WIRING DIAGRAMS MODEL SECTION 5 DESIGNATION HEATING ELEMENT SPEED UNITS 2 C SWITCH Tic MA AL EGO SPEED UNITS CONTROL HOT 50 6 HEAT SWITCH PLATE OR GRIL PLATE ABOVE Ex RANGE 1 VIEWED FROM THE FRONT LEFT TO THE TOP I FOOT SECTIONAL ARRANGEMENT FOR 32S 2M G RANGE 15 AND SEE TOP ARRANGEMENT CHART EACH OF THE LETTERS REPRESENT ONE OF THE TOP SECTION WIRING DIAGRAMS CIRCUIT 2 THE POWER INPUT LEADS TO EACH SECTION AND THE OVEN 1234 BREAKERS SHOWN AT LEFT CONNECTED THIER RESPECTIVE CIRCUIT BREAKERS AMPS PER LINE 5 SEE SERVICE CONNECTION CHART FOR PROPER CONNECTION OF CIRCUIT BREAKERS TO POWER SUPPLY THREE 32S RANGE WITH EGO MP PHASE 52 5 A
12. guide in baking various classes of products Product Temperature Top Bottom Roast Beef 30055 Low RANGE TOP Consists of various top arrangements depending on specific model purchased 12 x 24 hot plate controlled by indicating type 3 heat switch Temperature ranges from 0 800 Recommended Stock pots and heavy kettle work Round French Plates controlled by indicating type 6 heat switch Temperature ranges from 0 750 Recommended Light duty sauce pans and small stockpots Not Recommended Heavy stock pots or heavy urns or kettles 12 x 24 or 24 x 24 grill plates controlled by thermostats Temperature ranges from 0 450 Recommended All heavy and light frying Set the thermostat dial at the desired temperature The red pilot light will be on until the desired temperature is reached The pilot light indicates when the plate 15 heating CARE AND CLEANING The range should be thoroughly cleaned at least once a week in addition to the normal daily cleaning to insure against the accumulation of foreign material Keep inside of oven and metal deck clean particularly around door opening door edges and at bottom of door opening so that the door may close tightly CAUTION ANY OVEN CLEANER USED SHOULD BE MARKED SAFE ON ALUMINUM Keep drip pans under range top plates clean Keep hotplate and griddle surfaces clean Outside of range and top should be kept clean Electric equipment is inherently clean and san
13. itary but may become unsanitary if dirt 15 allowed to accumulate on it Take advantage of the clean sanitary features of electric equipment give it the regular attention that it deserves the same as any other highly perfected machinery to insure best results and continued high operating efficiency CALIBRATION Calibration Check Place thermometer or thermocouple in the center of oven cavity Set thermostat to 350 and place both 3 heat switches in the HIGH position Allow the oven to Preheat for at least half an hour Note cycle on temperatures and cycle off temperatures for 3 cycles Red indicator light indicates when oven 15 calling for heat After 3 cycles average the temperature Add all six temperatures and divide by 6 V VVV YV Calibration Adjustment A 1 16 flat blade screwdriver with a 2 shaft is required to make adjustments on the thermostat Maintain the oven temperature at 350 Without turning the thermostat remove the knob Locate the adjustment screw at the base of the shaft and insert the screwdriver Grasp the shaft and turn the screwdriver Counter clockwise to increase and clockwise to decrease 1 8 of a turn will move the temperature 5 7 in either direction Reinstall the oven knob and recheck the oven temperature v v v v v v OVEN 208 240 VAC to Thermostat Thermostat turned on 208 240 VAC 3 Heat Switch 3 Heat switch turned on 208 240 VAC to elements HOT TOP
14. nt Speed Unit 480 Volt 2100 Watts Before C 35556 Element French Plate 208 Volt 2600 Watts After D 43810 Element French Plate 240 Volt 2600 Watts After D 43810 Element French Plate 480 Volt 2600 Watts After C 35556 Speed Unit Bowl 208 240 Volt Before C 43809 Speed Unit Spider 208 240 Volt Before C 43809 Element French Plate 380 2000 Watts Marine Units Only Speed Unit Ring 208 240 Volt Before C 43809 Speed Unit Bowl Ring Assembly 480 Volt Before C 35556 Thumb Screws 1 2 20 x 3 4 Marine Units Only Switch 3 Heat 240 600VDC Marine Units Only Switch Rotating 3 Heat Switch Rotating 17 11010 09 11010 10 11010 13 11010 14 11010 21 11010 22 11010 23 11010 24 11010 25 11010 26 11010 341 11010 351 11010 361 11020 02 11020 04 11020 06 11030 11 11040 01 11040 02 11040 07 11040 08 11040 15 11040 16 11040 17 11040 18 11120 01 11120 02 11120 03 11120 10 11120 12 11120 13 11120 14 11120 15 11120 16 11120 18 11120 19 11120 20 20112 01 30304 04 30304 06 30304 09 ELECTRIC RANGE Switch Infinite Control Before C 35556 Thermostat 450 F Oven Griddle Terminal Strip 24 Pole Marine Units Only Terminal Block 2 Pole Marine Units Only Contactor 2 Pole 208 240 VAC Before C 35556 Contactor 4 Pole 125VDC Marine Units Only Fuse 30 Amp 480 Volt Units Before C 43809 Fuse 50 Amp 250 Volt Marine Units Only Fuse 50 Amp 208 240 Volt Units Before C 43809 Fuse Block 2 Pole 30 Amp 480 Vol
15. ould be made to the wires coming form the circuit breaker For amperage requirements see pages 13 PHASING POWER TERMINAL RANGE SUPPLY BLOCK TOP SINGLE PHASE ee LEG INSTALLATION Remove the oven legs from the oven and screw the legs into the threaded hole provided on the bottom of the oven 32 Series Range 1 Verify connections at plug and terminal block 2 Incoming Voltage Single Phase LI1 L2__ Three Phase LI L2__ L2 L3__ L3 L1__ 3 Amp draw LI L2 L3 4 Verify actual oven temperature at 350 F Note Install thermocouple wire in center of oven set 3 heat switch for and the Bottom 3 heat switch for LOW and let oven cycle for a minimum of three times Model Store Contact Store Phone Address Date Serial Tech Name Company Service Company Phone GENERAL The range is designed to give well regulated uniform heat throughout the oven and over the surface units The oven and surface units should be thoroughly preheated before being used It is advantageous from an operating cost stand point to operate with the switches and or thermostats set at the lowest position that will satisfactorily perform the cooking being done INITIAL PREHEAT Before the initial use of the range the oven must be thoroughly allowed to dry itself out This is done by setting top and bottom oven switches to the low position and setting the thermostat to 35
16. t Units Before C 43809 Fuse Block 2 Pole 60 Amp 208 240 Volt Units Before C 43809 amp Marine Units Pilot Light 208 240V 6 Lead Black Body Pilot Light 480V 6 Lead Black Body Circuit Breaker 208 240 Volt 1 Pole Circuit Breaker 480 Volt 3 Pole Supressor 115VDC for Contactor Marine Units Only Handle Channel Marine Marine Units Only Element Pan Assembly w Snout Speed Unit Frame Assembly Grab Bar Assembly 30 Long Marine Units Only Handle Assembly Marine Marine Units Only French Plate Frame Assembly After C 35556 Element Clip Long Element Clip Short Element Bushing Metal Hot Top Assembly 3 4 x 1ft Before D 87100 Range Plate Assembly 1 2 x 1ft Range Plate Assembly 1 2 x 2ft Tension Disc Oven Door Ship Rail 13 Marine Units Only Ship Rail 24 Marine Units Only Ship Rail Hooked 11 3 8 Marine Units Only Ship Rail Hooked 29 1 2 Marine Units Only Ship Rail Socket Front Marine Units Only Ship Rail Socket Rear Marine Units Only Spring Right Side 7 1 2 Long Oven Door Spreader Plate Handle Assembly Oven Door Knob Infinite Control Before C 35556 Knob 3 Heat Switch Knob Thermostat 450 F Griddle Oven Knob 6 Heat Switch After C 35556 Knob 3 Heat 240 600 VDC Marine Units Onl 18 30305 01 30402 08 30500 06 30500 1 1 30701 02 30703 01 30900 06 30900 08 30900 09 30901 05 30901 06 31601 01 31601 02 31800 01 31800 04 41500 03 50300 14 50300 20 50300 29 50
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