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
Service Manual for the Lang Models:
RF21S-A, RF21S-C, RF21S-D, RF21S-G, RF21S-H
Page 1: ...facturing Company 6500 Merrill Creek Parkway Everett WA 98203 Phone 1 800 224 5264 Fax 1 425 349 2733 www langworld com Copyright 2002 Service Manual for the Lang Models RF21S A RF21S C RF21S D RF21S...
Page 2: ...PAGE 1 TABLE OF CONTENTS 1 2 READ FIRST 2 3 EQUIPMENT DESCRIPTION 4 4 INSTALLATION 5 5 START UP 6 6 GENERAL OPERATION 7 7 SEQUENCE OF OPERATION 9 8 TROUBLESHOOTING 10 9 TECHNICAL DATA 12 10 WIRING DI...
Page 3: ...MENT 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 seria...
Page 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...
Page 5: ...tion oven which has a thermostat that controls the overall temperature of the oven RF21S H Six French plates controlled by six 6 heat switches FRENCH PLATE FRENCH PLATE FRENCH PLATE FRENCH PLATE FRENC...
Page 6: ...ctricity 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...
Page 7: ...mp draw L1______ L2______ L3______ 4 Verify actual oven temperature at 350 F ________ F Model _______ Date_______ Serial ________ Store ___________ Tech Name___________________ Contact_______________...
Page 8: ...r 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 th...
Page 9: ...lean 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 accumula...
Page 10: ...urned 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...
Page 11: ...USE CORRECTIVE ACTION Defective Fuses Replace Fuse Incorrect wiring Confirm that oven is getting proper voltage Confirm that range is phased correctly Defective Motor Confirm that motor is getting pow...
Page 12: ...ate 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 w...
Page 13: ...3 2 23 0 23 4 46 0 24 240 Volt 11010 351 1 2 1 3 1 4 2 3 2 4 3 4 61 5 92 2 30 9 30 9 31 2 61 8 21 480 Volt 11010 361 1 2 1 3 1 4 2 3 2 4 3 4 249 0 372 0 124 8 124 2 124 7 248 7 10 5 FRENCH PLATE RESIS...
Page 14: ...S 11010 24 76 0 6 0 480 Volt O S 11010 23 115 0 4 0 MOTOR VOLTS PART 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 1 2 3 4 2 1 4 3 L1...
Page 15: ...GE AMPERAGE AND WATTAGE Nominal Amps Per Line at Each Connection Three Phase Single Phase 208 Volts 240 Volts 480 Volts 208V 240V Model Number Total K W Each Conn L1 L2 L3 L1 L2 L3 L1 L2 L3 Shipping W...
Page 16: ...15 RF21S WIRING DIAGRAM 208 240...
Page 17: ...16 RANGE TOP WIRING 1 Griddle and Top Plate Element 2 Pilot Light 3 450 Griddle thermostat 4 Circuit breakers 5 French plate 6 6 Heat switch 7 Hot Top 8 850 Hot Top thermostat...
Page 18: ...17 RF21S 480 WIRING DIAGRAM...
Page 19: ...s 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 Watts After...
Page 20: ...01 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 50...