Service Manual for the Lang Models:
Contents
1. 28 CONTACTOR 5 51 PDWER SWITCH SUME eb c9 S ABER UN TU BREAKER BREAKER TU BREAKER vA c 3 FUSE CIRCUIT ES D TRANSFORMER BREAKER GRILL BI HOT TOP C SPEED UNITS ELECTRICAL CONNECTIONS CONNECT WIRE FROM RANGE UPPER OVENS CONNECT ers E S NNE ERA lt TOP OVEN CIRCUIT POWER OVEN CIRCUIT TO BOTTOM DECK TERMINAL BLOCK BREAKER CONNECT WIRES SUPPLY BREAKER 1st DECK 2nd DECK 3rd DECK FROM ADDITIONAL DECKS L1 3 1 5 3 TO LOWER OVEN TERMINAL THREE PHASE e g 3 1 US 2 4 6 3 1 2 CONVECTION OVEN RANGE ELECTRICAL DATA ING PS THRE A MODEL TOTALI A THREE PHASE KW PHASE CONN DUMBER Le LLT 3 215 62 10 2 5 2 216 27 7 1 65 6 2 0 2 0 2 66 66 2F 6S 6 4 04 64 13 2 13 9 6 66 6 6 6 6 19 8 23 6 44 112113 t r x CAUTION CHECK OVEN FOR PROPER E _ 33 33 33 DIRECTION OF FAN ROTATION 4 _ jJ CHANGE PHASING OF POWER IF ads AA 45 NECESSARY TO CORRECT SE QO Matos n N P 50 AMP 3 POLE TERMINAL BLOCK USE ON ALL SERIAL NUMBERS ST DECIO CIRCUIT B2. IUP SECTIDN WIRE DIAGRAMS c 000 a 66 b 3000 fi 7 7N a 6 L_ Sy rA 4 L 1667 1667 A E N mim 5 2 7 S i 2 2 2 O4 3 ao 2 2134 2 2134 T N 95 P 5 B x 4 GRILL HOT TOP C SPEED UNITS Griddle and Top Plate Element Pilot Light 450 Griddle thermostat Circuit breakers French plate 6 Heat switch Hot Top 850 Hot Top thermostat 16 RF21S 480 WIRING OVEN WIRING ARRANGEMENT TOP SECTION WIRE DIAGRAMS SEC SEe 2 2000 m 2ND AND 3RD DECK IST DECK 5 8 5 3 a sae 5 1667 ER WIRING IDENTICAL TERMINAL BLOCK 2 3 215 T fz er n LC gd d 1689 L TH 1ST DECK RF21S C B 065 B A RF21S D B B ee eee 10 2 pow 2ND DECK B 1 4 EN P B e C DET e hH TERMINAL BLOCK 282 gt g Lh HEAT ELEMEN A THERMOSTAT LM 6 HEAT SWITCH Y Ser Ie 2 MBTUR du 1 i Q PILOT LAMP Ea A
3. 13 CHNICAL DATA CONT 3 HEAT SWITCH WIRING OFF POS 1 POS 2 POS 3 r EE Oo RANGE AMPERAGE AND WATTAGE Model Total Nominal Amps Per Line at Each Connection Shipping Number K W Three Phase Single Phase Weight Each 208 Volts 240 Volts 480 Volts 208V 240V Conn L1 L2 L3 L1 L2 L3 L1 L2 L3 1010 875 Range 21 0 45 8 66 7 62 5 39 7 578 54 2 19 9 289 27 1 600 lbs Top Only 15 0 41 7 41 7 41 7 36 1 36 1 36 1 18 1 18 1 18 1 72 1 62 5 410 lbs 14 TERMINAL BLOCK 4 15 WIRING ARRANGEMENT TOP SECTION WIRE DIAGRAMS 7 Qus SEC 1 5 2 SEC 3 2000 n P 5 RF219 A C g n 4 RFe19 C B B B E 687 167 2ND AND 3RD DECK UE BO 6 WIRING IDEN
4. Service Manual for the Lang Models RF21S A RF21S C RF21S D RF21S G RF21S H Lang Manufacturing Company 6500 Merrill Creek Parkway Everett WA 98203 Phone 1 800 224 5264 Fax 1 425 349 2733 www langworld com Copyright 2002 SONS SIS TABLE lt 1 READ FIRST xai iunc END ONE EE ler 2 EQUIPMENT DESCRIPTION nnne nanus 4 INS TABEATION 52 om 5 SIR ket cg Lr id hu tidem 6 GENERAL 1 1 nnn nnn nnns is 7 SEQUENCE OF 9 TROUBLESHOOTING 10 TEGHNIGAL DATA eee e ee Hee eoe et 12 WIRING 65 0 0 4 1 1 15 PARES box bm a AI EIE 18 READ FIRST IMPORTANT CAUTION EACH UNIT WEIGHS 600 LBS THE TOP ONLY WEIGHS 410 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
5. 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 DANGER TERMINAL PROVIDED FAILURE TO GROUND THE HIGH APPLIANCE COULD RESULT IN ELECTROCUTION VOLTAGE AND DEATH PPP INSTALLATION 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 NOTICE The data plate is located right of range top controls and behind circuit breaker door on oven 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 MATE
6. is phased correctly Defective Motor Confirm that motor is getting power and working properly Replace Motor HOT TOP HOT TOP WILL NOT HEAT PROBABLE CAUSE CORRECTIVE ACTION Incorrect wiring Confirm the hot top is wired correctly Confirm that range is phased correctly Defective 3 Heat switch Confirm that switch is wired correctly Confirm that switch is operating correctly Defective Hot Top Confirm that Hot Tops are getting correct voltage Confirm that Hot Tops are operating correctly See Technical Data 10 JUBLESHOOTING FRENCH PLATE FRENCH PLATE WILL NOT HEAT PROBABLE CAUSE CORRECTIVE ACTION Incorrect wiring Confirm the French Plate is wired correctly Confirm that range is phased correctly Defective 6 Heat switch Confirm that switch is wired correctly Confirm that switch is operating correctly Defective French Plate 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
7. 208 240V 6 Lead Black Body 31601 01 Pilot Light 480V 6 Lead Black Body 31601 02 Pilot Light Rectangular 250 Volt Before C 35556 31601 06 Circuit Breaker 208 240 Volt 1 Pole 31800 01 Circuit Breaker 480 Volt 3 Pole 31800 04 Circuit Breaker 480 Volt 2 10 Amp 2 Pole Marine Units Only 31800 07 Element Pan Assembly w Snout 50300 20 Speed Unit Frame Assembly Before C 43466 50300 29 Grab Bar Assembly 36 Long Cruise Line Only 50300 32 Grab Bar Assembly 36 Long Marine Units Only 50300 44 Pan Latch Assembly Marine Units Only 50300 63 Door Striker Plate Marine Units Only 50300 68 French Plate Frame Assembly After C 35556 50300 82 Door Stop amp Slide Marine Units Only 50301 50 Hot Top Assembly 3 4 x 1ft Before D 86750 50400 02 Range Plate Assembly 1 2 x 18 50401 01 Range Plate Assembly 1 2 x 2ft 50401 02 Range Plate Assembly 1 2 x 3ft 50401 03 Range Plate Assembly 1 x 4ft 50401 11 Range Plate Assembly 1 x 5ft 50401 12 Range Plate Assembly 1 x 6ft 50401 13 Door Handle 11 1 2 Long Black T Style 50800 12 Ship Rail 13 Marine Units Only 50900 01 Ship Rail 24 Marine Units Only 50900 02 Ship Rail 35 3 8 Marine Units Only 50900 04 Ship Rail Hooked 11 3 8 Marine Units Only 50901 01 Ship Rail Hooked 32 1 4 Marine Units Only 50901 04 Ship Rail Socket Front Marine Units Only 60102 981 Ship Rail Socket Rear Marine Units Only 60102 982 Pan Grease Drawer 60102 29 Hinge 1 1 8 Of
8. Electrical service connection is made through the bottom of the oven A hole is provided for the attachment of 1 1 4 inch conduit See figure 2 on Page 2 Use the wiring diagram provided in this manual to determine the electrical specification CAUTION THE RANGE MUST BE PHASED PER THE WIRING DIAGRAM PHASING POWER TERMINAL RANGE SUPPLY BLOCK TOP SINGLE 11 1 3 5 PHASE 12 2 4 6 2 5 2 4 6 21 Series Range 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 11 12 13 4 Verify actual oven temperature at 350 F F Model Date Serial Store Tech Name Contact Company Store Phone Service Company Phone Address The range is designed to give well regulated uniform heat throughout oven and over 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 OVEN The convection oven roasts and bakes in shorter time and at lower temperatures with less shrinkage than conventional commercial ovens A blower in the Lang convection oven circulates air within the chamber to heat the entire space evenly and transfer heat ef
9. REAKER 17 215 DESCRIPTION PART NO Element Top Plate 208V O S 2000 Watts 11010 09 Element Top Plate 208V 1 5 3000 Watts 11010 10 Element Top Plate 240V O S 2000 Watts 11010 21 Element Top Plate 240 1 5 3000 Watts 11010 22 Element Top Plate 480V O S 2000 Watts 11010 23 Element Top Plate 480 1 5 3000 Watts 11010 24 Element Top Plate 380V O S 2000 Watts Marine Units Only 11010 25 Element Top Plate 380V 1 5 3000 Watts Marine Units Only 11010 26 Hot Plate Cast Assy w Elements 208V 5000 Watts After E 86751 11010 341 Hot Plate Cast Assy w Elements 240V 5000 Watts After E 86751 11010 351 Hot Plate Cast Assy w Elements 480V 5000 Watts After E 86751 11010 361 Element 10 x 10 208 Volt 1000 Watts Before C 35556 11020 02 Element 10 x 10 480 Volt 1000 Watts Before C 35556 11020 04 Element 10 x 10 240 Volt 1000 Watts Before C 35556 11020 06 Element F6 Oven 240 Volt 6000 Watts 11090 09 Element F6 Oven 240 Volt 6000 Watts 11090 10 Element F6 Oven 480 Volt 6000 Watts 11090 11 Element F6 Oven 380 Volt 6000 Watts 11090 28 Element Speed Unit 208 Volt 2100 Watts Before C 43466 11120 01 Element Speed Unit 240 Volt 2100 Watts Before C 43466 11120 02 Element Speed Unit 480 Volt 2100 Watts Before C 35556 11120 10 Element French Plate 208 Volt 2600 Watts After D 43467 11120 12 Element French Plate 240 Volt 2600 Watts After D 43467 11120 13 Element French Plate 480 Volt 2600
10. RESISTANCE FECHNICAL DAT VOLTS PART RESISTANCE AMPS gt 208 Volt 11090 09 700 29 gt 240 Volt 11090 10 960 25 gt 480 Volt 11090 11 3700 12 5 HOT TOP RESISTANCE VOLTS PART PIN RESISTANCE AMPS 208 Volt 11010 341 1 2 4600 24 1 3 68 8 1 4 2320 2 3 2300 2 4 2340 3 4 46 00 240 Volt 11010 351 1 2 61 50 21 1 3 9220 1 4 3090 2 3 3090 2 4 3120 3 4 6180 480 Volt 11010 361 1 2 249 0 Q 10 5 1 3 37200 1 4 124 8 Q 2 3 1242 Q 2 4 1247 3 4 24870 FRENCH PLATE RESISTANCE VOLTS PART PIN RESISTANCE AMPS 208 Volt 11120 12 1 2 130 Q 12 5 1 3 1600 1 4 4500 2 3 2900 2 4 8400 3 4 140 240 Volt 11120 13 1 2 1730 11 1 3 2120 1 4 59200 2 3 3900 2 4 140 3 4 153 480 Volt 11120 14 1 2 690 5 5 1 3 2390 1 4 8500 2 3 453 2 4 158 3 4 6100 12 GRIDDLE amp PLATE ELEMENTS HNICAL DATA VOLTS PART RESISTANCE AMPS gt 208 Volt I S 11010 10 1450 14 5 gt 208 Volt O S 11010 09 2150 9 5 gt 240 Volt I S 11010 22 19 00 12 5 gt 240 Volt O S 11010 21 2800 8 0 gt 480 Volt I S 11010 24 76 0 6 0 gt 480 Volt O S 11010 23 1500 40 MOTOR VOLTS PARTH AMPS RPM 208 240 Volts 30200 12 32 1725 480 Volts 30200 03 6 6 1725 6 HEAT SWITCH WIRING OFF POS 1 POS 2 POS 3 2 x XIX x X XIX x i 2 7 2 A D ji a n F A POS 4 POS 5 POS 6 x x gt a AEN
11. RIALS 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 Eric Haar CAUTION MOST CLEANERS ARE HARMFUL TO THE SKIN EYES MUCOUS MEMBRANES AND CLOTHING PRECAUTIONS SHOULD BE TAKEN TO WEAR RUBBER GLOVES GOGGLES OR FACE SHIELD A 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 DANGER INSIDE THIS APPLIANCE WHEN THE UNIT IS PLUGGED WIRED INTO A LIVE 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 JIPMENT DESCRIPTI gt Range dimensions are 30 76 2cm High 38 96 5cm Deep and 36 91 5cm Wide gt The Sides Bottom
12. TICAL 2 E hg 10 20 rs a TU 1ST DECK 3 RF219 G A Lx T 41 p RF219 H C 2 NX LU HEAT ELEMENT HERMOSTAT UG Fus 6 HEAT SWITCH 7 10708 7 pe ote EE Ur dim 28 PILOT LAMP 6 5 ar 22 Tuv E Pow WITCH EIN ES CIRCUIT BREAKER 3 A a 1N ide AG SPEED UNIT FUSE GRILL 8 SPEED UNITS I ELECTRICAL CONNECTIONS 34 TE POWER TERMINAL RANGE DVEN CONNECT WIRES FROM RANGE SUPPLY BLUCK 1st DECK nd DECK 3rd DECK 91 CE TOP OR ADDITIONAL DECKS TO SINGLE Li 1 3 5 il 1 1 Q 22 2 ak 1 22 LOWER OVEN TERMINAL BLOCK PHASE 5 5458 5 5 5 C C 212 S 210 hs 212 AS SHOWN AT RIGHT E 5 i e Le 1 5 e 1 PHASE L3 4 6 2 2 Bu ELECTRICAL DATA MORE LOADING THREE PHASE AMPS SINGLE P KW PER PHASE 208 VOLI 240 VOLI 5 a tes ua Jis u e 208 e 28 215 64 10 0 5 0 216 483 69 2 625 419 599 542 1038 900 65 0 0 0 0 66 317 317 000 275 275 00 317 275 o eF 6S 66 0 0 6 6 13 2 550 317 317 477 75 275 635 550 agin leas 3 65 66 66 66 19 8 55 550 550 477 477 477 952 825 N USE ON ALL E SERIAL NUMBERS
13. Watts After C 35556 11120 14 Speed Unit Bowl 208 240 Volt Before C 43466 11120 15 Speed Unit Spider 208 240 Volt Before C 43466 11120 16 Element French Plate 380 Volt 2000 Watts Marine Units Only 11120 18 Speed Unit Ring 208 240 Volt Before C 43466 11120 19 Speed Unit Bowl Ring Assembly 480 Volt Before C 35556 11120 20 Thumb Screws 1 2 20 x 3 4 Marine Units Only 20112 01 Motor 1 3 HP 480 Volt 30200 03 Motor 1 3 HP 208 240 Volt 30200 12 Switch Toggle On Off On 30303 03 Switch Toggle On Off 30303 06 Switch Rotating 3 Heat Before C 43466 30304 06 Switch Rotating 6 Heat Off After C 35556 30304 09 Switch Infinite Control Before C 35556 30305 01 Switch Rocker On Off Before C 35556 30306 01 Thermostat 450 F Oven Griddle 30402 08 Thermostat 800 F Hot Top Before C 35556 30402 10 Thermostat 180 F Oven Cook amp Hold 30402 21 Thermostat 850 F Hot Top After C 35556 30402 23 Thermostat 450 F Oven After D 46305 30402 27 Terminal Block 3 Pole 30500 07 Relay 240 VAC 30600 02 Contactor 3 Pole 208 240 VAC 30700 05 Contactor 2 Pole 208 240 VAC 30701 02 Timer Electric 12 Hour 30800 04 Timer Mechanical Long Ring 30801 01 Buzzer Electric Timer 30802 01 Fuse 15 Amp 30900 01 Fuse 6 1 4 Amp Before D 46304 30900 05 18 215 ELECTRIC RANGE DESCRIPTION PART NO Fuse Holder 15 Amp 30901 02 Transformer 480 240 VAC 31400 04 Transformer 380 240 VAC Marine Units Only 31400 17 Pilot Light
14. and Rear wall are constructed stainless steel gt The Range surface can come in 5 different configurations RANGE TOP CONTROLS The RF21 Series Rang 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 RF21S Ranges have the same type of convection oven which has a thermostat that controls the overall temperature of the oven RF21S H RF21S C RF21S G Six French plates controlled by six 6 Three Hot Tops controlled by three One 36 x24 Griddle controlled by heat switches 850 thermostats one 450 thermostat RF21S A RF21S D One 24 x24 griddle controlled by Two 450 thermostats Two 12 x24 Hot tops controlled by two 850 thermostats and Two French plates controlled by two 6 heat switches and two French plates controlled by two 6 heat switches 24 24 icd GRIDDLE P PLATE PLATE EN FRENCH FRENCH INSTALLATION 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 agen
15. ause future trouble if not properly treated To season the convection oven set the thermostat dial at 200 F and turn on the power switch Allow unit to cycle at least 15 minutes at this heat level Reset the thermostat to 250 F allowing the same time Then reset the thermostat to 350 F The oven should be operated at this heat level for a minimum of 4 hours preferably 5 hours to insure the complete removal of all moisture If the unit is out of use for three or more days a one hour preheat schedule should be used especially when exposed to high humidity and or cool temperatures Consists of various top arrangements depending on specific model purchased 12 x 24 hot plate controlled by high temperature thermostats 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 36 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 is heating CARE AND CLEANING The range should be thoroughly cleaned at least once a week in addit
16. ficiently to the product even with stacked loading The airflow continuously removes the thick layer of moist cool air that otherwise would surround the product When properly loaded and operated it maintains this airflow throughout the chamber to eliminate hot spots and roasts or bakes with minimum power consumption at twice the output capacity of a conventional oven The power switch on the lower portion of the control panel energizes the fan motor and activates the thermostatically controlled circuit for the oven heating elements When this switch is in the on position the white bar indicator marked power will be illuminated Rotating the thermostat control knob from off position to selected temperature causes the red bar indicator light to illuminate and closes the contactor that feeds power to the heating elements This light will cycle on and off as the thermostat calls for heat in the oven The blower however operates continuously while the power switch is in the on position The black control knob operates a damper in the oven vent stack Damper is open when knob is pulled outward Circuit breakers behind the control panel protect the electrical components from overload INITIAL PREHEAT Prior to putting any range or oven into full time operation at normal cooking temperatures it must be thoroughly seasoned or dried out Moisture absorption in the closed spaces in the insulation and even inside the heating elements can c
17. fset Before C 35556 70601 03 Hinge Plate amp Bushing Door 70601 05 Hinge Pin 70601 06 Hinge Bracket Upper Left Oven 70601 27 Hinge Bracket Lower Left Oven 70601 28 Knob Infinite Control Before C 35556 70701 04 Knob Manual Timer 70701 09 Knob 3 Heat Switch Before C 43466 70701 10 Knob Thermostat 450 F Griddle Oven 70701 16 Knob Thermostat 450 F Oven 70701 19 Knob Thermostat 800 F Hot Top Before C 35556 70701 20 Knob Damper Black 70701 25 Knob Thermostat Cook amp Hold 70701 34 Knob Thermostat 850 F Hot Top After C 35556 70701 35 Knob 6 Heat Switch After C 35556 70701 41 Blower Wheel 71500 03 19
18. ion 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 sanitary but may become unsanitary if dirt is 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 is calling for heat After 3 cycles average the temperature Add all six temperatures and divide by 6 VNNN v 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 kn
19. ob 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 VNVNNN v Power switch to ON position 208 240 VAC to Motor Motor turns on 208 240 VAC to Thermostat Thermostat turned on 208 240 VAC to contactor Contactor energizes 208 240 VAC to elements HOT TOP 208 240 VAC to thermostat Thermostat 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 QUENCE OF ROUBLESHOOTII OVEN OVEN WILL NOT HEAT PROBABLE CAUSE CORRECTIVE ACTION Defective Fuses gt Replace Fuse Incorrect wiring Confirm that oven is getting proper voltage Confirm that range is phased correctly Defective Thermostat Confirm that thermostat is getting correct voltage Confirm that thermostat was operating properly Defective Element Check element for normal operation See Technical Data OVEN MOTOR WILL NOT COME ON PROBABLE CAUSE CORRECTIVE ACTION Defective Fuses Replace Fuse Incorrect wiring Confirm that oven is getting proper voltage Confirm that range
20. t 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 Place spacers ie 2 x 4 wood block not supplied at the front and rear of the oven top Place the range top on the spacers that are located on top of the oven The six wire leads to supply electricity to the cook top are bundled under the front bottom of the top Route these wires through the bushing provided in the oven top Align the four locating pins in the bottom corner of the top with the four holes in each corner of the oven top Remove the spacers and lower the top onto the oven CAUTION MAKE SURE THE SIX WIRE LEADS TO SUPPLY ELECTRICITY TO THE COOK TOP ARE NOT CRIMPED BETWEEN THE OVEN AND RANGE TOP WARNING MAKE SURE THE MAIN POWER SUPPLY TO THE RANGE IS TURNED OFF AT THE SOURCE PRIOR TO CONNECTING POWER TO THE RANGE The range can now be connected to power CAUTION BE SURE THE POWER SUPPLY VOLTAGE MATCHES THE VOLTAGE SPECIFIED ON THE NAMEPLATE LOCATED ON THE FRONT OF THE RANGE Use the wiring diagram provided in this manual for determining the connections of the cook top wires to the oven terminal block
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