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SERVICE MANUAL
FLOOR MODEL
ELECTRIC FRYERS
MODEL ML DESCRIPTION
ERD40 114614 15 ½" WIDE
ERD50 114615 15 ½" WIDE
ERD225 114616 15 ½" WIDE
ERD85 114617 21" WIDE
ERC40 114618 15 ½" WIDE
ERC50 114619 15 ½" WIDE
ERC225 114620 15 ½" WIDE
ERC85 114621 15 ½" WIDE
ERO15 114622 15 ½" WIDE FLOOR
SERVE STATION
ERO21 114623 21" WIDE FLOOR
SERVE STATION
MODEL ERD40 Shown
- NOTICE -
This Manual is prepared for the use of trained Vulcan Service
Technicians and should not be used by those
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TABLE OF CONTENTS GENERAL ............................................................................. 3 Introduction ........................................................................ 3 Battery Configuration ................................................................. 4 Tools ............................................................................. 4 Operator Control Location ............................................................. 4 REMOVAL AND REPLACEMENT OF PARTS ......
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ELECTRIC FRYERS - GENERAL GENERAL INTRODUCTION This manual covers the following floor model fryers. All fryer models are available with the following electrical specifications: 208/60/3, 240/60/3, 480/60/3, 220/380/60/3 4 wire, 240/415/60/3 4 wire Serve station models are available in 120/60/1 if equipped with heat lamp. SHORTENING CAPACITY MODEL DESCRIPTION CONTROLS KW IN POUNDS ERD40 15 ½" wide Solid State 14 & 17 40 ERD50 15 ½" wide Solid State 14, 17 & 21 50 ERD225 15 ½" wide Solid State 14
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ELECTRIC FRYERS - GENERAL BATTERY CONFIGURATION OPERATOR CONTROL LOCATION Batteries of up to five fryers can be configured. NOTE: 1. A filter dump station can be located Solid State Controls under any position in a battery if it has been built without a serve station. 2. A filter dump station can be located under any position in a battery if the line-up has been built with a serve station located at either end of the battery. 3. When a serve station is built between two fryers within a battery
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ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS REMOVAL AND REPLACEMENT OF PARTS CONTROL PANELS POTENTIOMETER (SOLID STATE MODELS) WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN WARNING: DISCONNECT THE ELECTRICAL CIRCUIT BOX. THERE MAY BE TWO SEPARATE POWER TO THE MACHINE AT THE MAIN CIRCUITS. BE SURE BOTH ARE CIRCUIT BOX. THERE MAY BE TWO SEPARATE DISCONNECTED. PLACE A TAG ON THE CIRCUITS. BE SURE BOTH ARE CIRCUIT BOX INDICATING THE CIRCUIT IS DISCONNECTED. PLACE A TAG
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ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS 4. Remove bulb and capillary tube clamps and/or HEATING ELEMENTS probe clamps from the element being replaced. Save for reuse if needed. WARNING: DISCONNECT THE ELECTRICAL NOTE: Half of each clamp is permanently fixed in POWER TO THE MACHINE AT THE MAIN place on the element. Center the Hi-limit bulb in its CIRCUIT BOX. THERE MAY BE TWO SEPARATE clamps before tightening clamp. The Temperature CIRCUITS. BE SURE BOTH ARE Probe should be inserted in
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ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS 8. Remove the screws from the rear top of the 4. Lower the element enough to remove the head cover. screws securing the top of the head cover. 5. Lift the head cover enough to access and 9. Lift cover enough to access element wires. disconnect the probe lead wires. Identify the six lead wire connections for connection later. Then disconnect the six lead 6. Reverse procedure to install. wires from the element being removed. NOTE: Each heater has
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ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS 6. Remove the screws that secure the high limit 8. To install spring, insert hanger from top with thermostat. notch pointing to rear of unit and spring hook opening pointing to front of unit. Hold in place 7. Remove the grommet from the element head. while inserting spring from bottom. 8. Remove the bulb, capillary tube and the high limit thermostat from the element head. 9. Reverse procedure to install. LIFT ASSIST SPRINGS WARNING: DISCONNECT
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ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS TILT SWITCH FILTER-READY RETURN VALVE SWITCH WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN WARNING: DISCONNECT THE ELECTRICAL CIRCUIT BOX. THERE MAY BE TWO SEPARATE POWER TO THE MACHINE AT THE MAIN CIRCUITS. BE SURE BOTH ARE CIRCUIT BOX. THERE MAY BE TWO SEPARATE DISCONNECTED. PLACE A TAG ON THE CIRCUITS. BE SURE BOTH ARE CIRCUIT BOX INDICATING THE CIRCUIT IS DISCONNECTED. PLACE A TAG ON THE BEING SERVICED. CIRCUIT BOX IN
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ELECTRIC FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS SERVICE PROCEDURES AND ADJUSTMENTS WARNING: HOT OIL AND PARTS CAN CAUSE 7. Calculate the average temperature. Average temperature = (Temperature at "off” + BURNS. USE CARE WHEN SERVICING THE FRYER. temperature at "on") / 2 . (Example: (360 ( + 340 ( ) / 2 = 350 ( F. The average temperature WARNING: CERTAIN PROCEDURES IN THIS should be 350 ( F (± 5 ( F). The following steps should be taken if not. SECTION REQUIRE ELECTRICAL TESTS OR MEASUREMEN
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ELECTRIC FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS HEATING ELEMENT TEST WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX. THERE MAY BE TWO SEPARATE CIRCUITS. BE SURE BOTH ARE DISCONNECTED. PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING SERVICED. Perform the appropriate test to obtain the desired information. NOTE: Values in the chart are nominal values (± 10%). 3 Phase, 3 Wire Supply Plus Ground TOTAL KW / PHASE AMPS PER AMPS PER AMPS PER KW LINE
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ELECTRIC FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS 13. When the shortening temperature reaches MELT TEMPERATURE 135 ( F, turn the adjustment screw counterclockwise until the voltmeter reads 0 CALIBRATION (SOLID VDC. STATE CONTROL) 14. Place a small drop of enamel paint or fingernail polish in the center of the screw. WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN 15. Disconnect the power and remove the CIRCUIT BOX. THERE MAY BE TWO SEPARATE voltmeter. CIRCUITS. BE SURE
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ELECTRIC FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS COMPUTER CONTROL TEST TILT SWITCH ADJUSTMENT 1. Check for 24 VAC at pin 1 (and pin 2 on split WARNING: DISCONNECT THE ELECTRICAL vat fryer) referenced to pin 13. POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX. THERE MAY BE TWO SEPARATE 2. Check for 12 to 16 VDC between pins 23 and CIRCUITS. BE SURE BOTH ARE 24. DISCONNECTED. PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS 3. Verify probe thermistor operation as outlined BEING SERVICED
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ELECTRIC FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS BASKET LIFT ARM ADJUSTMENT 1. When basket is in the down position, it should just clear the rack which is installed above the elements. A. To adjust, pull basket arm off lift shaft and adjust height adjustment bolt to raise or lower basket arm as required. Both baskets should be same height. 2. Rollers on basket arm should touch rear of tank and be square to tank. A. To adjust, loosen basket arm set screw and adjust arm in or out as required
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ELECTRIC FRYERS - ELECTRICAL OPERATION COMPONENT LOCATION 15
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ELECTRIC FRYERS - ELECTRICAL OPERATION CONTROL BOX 16
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ELECTRIC FRYERS - ELECTRICAL OPERATION 8. If either the tilt switch or the second high limit ELECTRONIC CONTROL open, power is removed from 1CON and 3CON and both the trouble and the second high limit (SOLID STATE) FULL VAT lights will come on. SEQUENCE OF OPERATION 1. Conditions COMPUTER CONTROL A. Shortening at room temperature. B. Fryer circuit breaker "on". FULL VAT SEQUENCE OF C. Melt/Fry switch in "melt". OPERATION D. Power to pin 1 of control. E. Control set 350 ( F 1. Conditions 2. Pow
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ELECTRIC FRYERS - ELECTRICAL OPERATION 4. Shortening temperature reaches set A. Return valve switch contacts open. temperature. B. Control relay IPR1 unenergizes. A. Computer turns off heat output and control relay R2 de-energizes. 8. Filter motor stops. B. Power is removed from 2CON and 4CON. 5. Computer cycles heat output on temperature. BASKET LIFT SEQUENCE 6. If the first high limit (410 ( F) trips, the display OF OPERATION will indicate “HI TEMP”. NOTE: For a full vat, the fryer will shut
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ELECTRIC FRYERS - ELECTRICAL OPERATION Diagnostics is divided into two areas, “operation” COMPUTER CONTROL and “service”. Operation mode is the usual mode of fryer operation. Service mode is intended to give BOARD DIAGNOSTICS the service person more information regarding the nature of the failure. In either mode the unit NOTE: The computer control is also used on other operates normally until an error occurs. In that case equipment and is capable of displaying many what is displayed will be diff
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ELECTRIC FRYERS - ELECTRICAL OPERATION POWER UP DIAGNOSTICS On power up, the control will execute a self check. The failure of any of these tests will result in the message “CALL SERVICE” or “MICRO FAIL” being displayed. This prompt will flash at approximately a 1 hertz rate. While the prompt is displayed, the computer will not function. If the failure is in the computer, the fryer will operate in backup mode. When the fryer computer comes out of initialization and self check routines, it will
