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1 theory of operation – Pitco Frialator REDUCED OIL VOLUME FRYING SYSTEM for SELV14 User Manual

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INSTALLATION & OPERATIONAL SELV MANUAL

5 L20-406 Rev 5 (3/14)

1 THEORY OF OPERATION 


The Pitco Low (or reduced) Oil Volume fryer works very similarly to the Pitco standard

electric fryer. Other than rotating elements (for cleaning), the units function nearly the

same.

The Low Oil Volume Fryer has a reduced cold zone to significantly reduce oil usage and

extend oil life. This smaller zone may require more frequent filtering depending on the

product being fried.

Upon turning the fryer on, the high limit closes the (side on) safety contactor which stays

closed until the fryer is turned off. If the oil temperature exceeds 450 deg F, the high limit

opens and prevents further operation until the cooking oil has reached a safe cooking

temperature. This places a minimum duty cycle on the safety (side on) contactor to insure

its proper operation when needed. The “heat demand” contactor opens and closes on

demand from the primary control to maintain the desired cooking temperature. When the

“heat demand” contactor closes, it energizes the heating elements in the fry pot. Near the

fryer heating elements, the temperature probe and high limit can be found. The

temperature probe provides a signal to the primary control, sensing the oil temperature in

the fry pot.

The fryer is equipped with a manual “ADD OIL” button that can transfer fresh oil from a JIB

(Jug in Box) located under the fryer or a bulk oil management system. The operator can

use the manual “ADD OIL” button as needed to replenish any oil consumed in the cooking

process. It is recommended that oil only be added when the fry pot is at the desired

temperature, and that the “ADD OIL” button not be used to fill an empty fry pot from the

JIB.

Optional Automatic Top Off: If equipped, the fryer (only when operating at desired

temperature) senses the oil level and replenishes consumed oil only between cook

cycles. There are no programming options for the operator or service technician, the

control functions like any other Pitco electric fryer computer control. The “ADD OIL” switch

(described above) is present with Auto Top Off.


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