ELECTRIC FRYERS - ELECTRICAL OPERATION

ELECTRONIC CONTROL (SOLID STATE) FULL VAT SEQUENCE OF OPERATION

1.Conditions

A.Shortening at room temperature.

B.Fryer circuit breaker "on".

C.Melt/Fry switch in "melt".

D.Power to pin 1 of control.

E.Control set 350￿F

2.Power switch to "on".

A.Power to pin 2 or pin 3 or pin 4 on control depending on supply voltage.

B.Power is jumpered to pin 5.

C.When power switch is turned on, first high limit blinks on as control energizes relay to open path between pin 6 and pin 7. Pin 7 output is now controlled by another relay switching pin 5.

D.Power is supplied to 1CON , 2CON, 3CON and 4CON. 1CON and 3CON will energize through the tilt switch and second high limit.

3.Control evaluates the input from the thermistor at pins 8 and 9.

A.The melt cycle is initiated. Percent timer controls output at pin 7 to energize 2CON and 4CON.

1)Initial condition is off (28 sec)

2)Heat condition (2 sec)

B.Control cycles output on time cycle of 28 sec off, then 2 sec on.

4.Shortening temperature reaches 135 F.

A.Melt cycle is automatically over-ridden.

B.Control uses thermistor to cycle output at pin 7.

5.Shortening temperature reaches 350￿F.

A.Control removes output from pin 7.

6.Control cycles output at pin 7 on temperature.

7.If shortening temp reaches 410￿F, the control unenergizes relay which opens path from pin 7 to pin 5 and closes path from pin 7 to pin 6.

A.The first high limit light lights.

B.Power is removed from 2CON and 4CON.

C.Output is removed from pin 6 when shortening temperature drops below 350￿F.

8.If either the tilt switch or the second high limit open, power is removed from 1CON and 3CON and both the trouble and the second high limit lights will come on.

COMPUTER CONTROL FULL VAT SEQUENCE OF OPERATION

1.Conditions

A.Shortening at room temperature.

B.Fryer circuit breaker "on".

C.24 VAC power from 2T to pins 3, 4, 5, 6, 11, and 17 (reference to ground at pins 9 or 10) on computer main harness.

D.24 VAC ground to pins 9, 10, 12, and 13 (reference to pin 17).

NOTE: Pin 12 on the main harness is used to indicate to the computer the type of fryer (full or split vat) that it is installed in. If the fryer is a full vat, pin 12 is tied to 24 VAC ground and if the fryer is a split vat, pin 12 is tied to 24 VAC.

2.Power switch to “on”.

A.Plus 12 VDC from computer power supply board PS-1 to pin 23 on computer main harness.

B.R1 control relay, 1CON and 2CON will energize.

C.R1 relay energized, NO contacts close and supply power to pin 1 on computer main harness.

NOTE: Pins 1 and 2 on the main harness are used to monitor the power status of the vat(s). Pin 1 is the power status input for the right vat and pin 2 is the input for the left vat. These inputs tell the computer which vat(s) are being used or which vat(s) have been turned off. 24 VAC is applied when on and 0 Volt when turned off. If configured as a full vat, only pin 1 is used. Pin 2 is left open.

3.Computer evaluates input from thermistor at pins 3 and 4 on temperature probe harness.

A.Computer controls output at pin 15 to energize R2 control relay.

B.Control relay R2 energizes.

C.R2 NO contacts close to supply power to 2CON and 4CON.

NOTE: Pin 15 on the main harness is the right heat output and pin 16 is the left heat output. These outputs provide 24 VAC to control relays which control the heat circuit. If the fryer is a full vat unit, only pin 15 is used. Pin 16 is left open.

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Vulcan-Hart ERD40 service manual Computer Control Full VAT Sequence of Operation
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ERD40 specifications

The Vulcan-Hart ERD40 is a premium commercial deep fryer designed for high-volume food service operations. Renowned for its durability and efficiency, this fryer is a staple in restaurants, catering services, and other culinary establishments where consistent performance and speed are paramount.

One of the standout features of the ERD40 is its impressive cooking capacity. With a large frying pot, the fryer can handle substantial volumes of food, making it ideal for busy kitchen environments. It typically includes twin fry pots which allows simultaneous frying of different food items, enhancing productivity and serving speed without compromising on quality.

The fryer is equipped with advanced temperature control technology, which ensures precise temperature regulation. This feature is crucial for achieving perfect frying results and maintaining the quality of fried foods. The temperature can be easily adjusted, providing the flexibility needed for different cooking requirements.

Another key technology incorporated into the Vulcan-Hart ERD40 is its efficient oil filtration system, which helps extend the life of the cooking oil. This system filters out food particles and contaminants, keeping the oil clean and reducing the need for frequent oil changes. As a result, operators can save on both oil costs and maintenance time, ultimately increasing profitability.

The design of the ERD40 prioritizes user convenience and safety. It includes features such as a hinged lid for easy access and an ergonomic design to minimize the risk of spills and burns. Additionally, the fryer is constructed with robust materials that ensure longevity, even under heavy use.

Cleaning and maintenance are made straightforward with removable parts and easy-to-access components, allowing for quick disassembly and thorough cleaning. This attention to detail helps maintain hygiene standards crucial in food service environments.

With its combination of durability, efficiency, and advanced frying technology, the Vulcan-Hart ERD40 is an excellent investment for any commercial kitchen. It meets the demands of high-volume cooking while providing the reliability chefs depend on to serve high-quality dishes consistently.
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