Related Manuals for Lang RF21S-C
Summary of Contents for Lang RF21S-C
- Page 1 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...
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Page 2: Table Of Contents
TABLE OF CONTENTS CHAPTER PAGE TABLE OF CONTENTS ...............1 READ FIRST..................2 EQUIPMENT DESCRIPTION ..............4 INSTALLATION..................5 START-UP ...................6 GENERAL OPERATION ..............7 SEQUENCE OF OPERATION .............9 TROUBLESHOOTING .................10 TECHNICAL DATA ................12 10. WIRING DIAGRAMS................15 11. PARTS LIST..................18... -
Page 3: Read First
IMPORTANT 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. - Page 4 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...
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Page 5: Equipment Description
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”... -
Page 6: Installation
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. -
Page 7: Start-Up
START-UPS RF21 Series Range 1) Verify connections at plug and terminal block 2) Incoming Volt - Single Phase L1-L2______ Three Phase L1-L2______ L2-L3______ L3-L1______ 3) Amp draw L1______ L2______ L3______ 4) Verify actual oven temperature at 350 °F ________ °F. Model #_______ Date_______ Serial #________ Store #___________... -
Page 8: General Operation
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 efficiently to the product, even with stacked loading. -
Page 9: Care And Cleaning
RANGE TOP Consists of the 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. -
Page 10: Sequence Of Operation
SEQUENCE OF OPERATION OVEN 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. -
Page 11: Troubleshooting
TROUBLESHOOTING OVEN OVEN WILL NOT HEAT PROBABLE CAUSE CORRECTIVE ACTION Replace Fuse. Defective Fuses. Confirm that oven is getting proper voltage. Incorrect wiring 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. - Page 12 TROUBLESHOOTING CONT’D FRENCH PLATE FRENCH PLATE WILL NOT HEAT PROBABLE CAUSE CORRECTIVE ACTION Confirm the French Plate is wired correctly. Incorrect wiring Confirm that range is phased correctly. Confirm that switch is wired correctly. Defective 6-Heat switch Confirm that switch is operating correctly. Confirm that French Plate is getting correct voltage.
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Page 13: Technical Data
TECHNICAL DATA OVEN ELEMENT RESISTANCE VOLTS PART # RESISTANCE AMPS 11090-09 7.0 Ω 208 Volt 240 Volt 11090-10 9.6 Ω 37.0 Ω 480 Volt 11090-11 12.5 HOT TOP RESISTANCE VOLTS PART# PIN # RESISTANCE AMPS 208 Volt 11010-341 46.0 Ω 68.8 Ω... - Page 14 TECHNICAL DATA CONT’D GRIDDLE & TOP PLATE ELEMENTS VOLTS PART # RESISTANCE AMPS 14.5 Ω 11010-10 14.5 208 Volt I/S 208 Volt O/S 11010-09 21.5 Ω 240 Volt I/S 11010-22 19.0 Ω 12.5 240 Volt O/S 11010-21 28.0 Ω 76.0 Ω 480 Volt I/S 11010-24 115.0 Ω...
- Page 15 TECHNICAL DATA CONT’D 3-HEAT SWITCH WIRING POS. 1 POS. 2 POS. 3 RANGE AMPERAGE, AND WATTAGE Model Total Nominal Amps Per Line at Each Connection Shipping Number K.W. Weight Three Phase Single Phase Each 208 Volts 240 Volts 480 Volts 208V 240V Conn.
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Page 16: Wiring Diagrams
RF21S WIRING DIAGRAM 208/240... - Page 17 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 RF21S 480 WIRING DIAGRAM...
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Page 19: Parts List
RF21S ELECTRIC RANGE DESCRIPTION PART NO. Element Top Plate 208V O/S 2000 Watts 11010-09 Element Top Plate 208V I/S 3000 Watts 11010-10 Element Top Plate 240V O/S 2000 Watts 11010-21 Element Top Plate 240V I/S 3000 Watts 11010-22 Element Top Plate 480V O/S 2000 Watts 11010-23 Element Top Plate 480V I/S 3000 Watts 11010-24... - Page 20 RF21S 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 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...
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