Pressure Assist Features and Function

Pressure Assist is an optional, feature for purchase that allows operators to cook small loads and still maintain the required vat pressure necessary for pressure cooking. In the past, full loads were required in order for the fryer to build the required vat pressure. Pressure Assist adds additional pressure as needed and will raise the vat pressure to the required 12 PSI cooking pressure. Low vat pressure will not allow the food to cook properly and consistently. With pressure Assist, small loads can be cooked with the same consistency as full loads. This feature provides the operator with more flexibility in meeting both customer and business needs by reducing waste and providing fresh cooked, high quaility product in small amounts as needed.

Software

C8000 Controller

1. Access Tech Mode T-2A, HAS PR ASSIST and set to YES. Pressure ASSIST: YES / NO displays when the fryer is initially powered on. If NO is selected, the fryer's cook cycle operates as normal. The air pump stays off for the entire cook cycle.

2. Select YES, the setting 2. PR ASSIST DELAY SECONDS: 0 ... 120 seconds will display in product programming mode. A delay can be set between when the pressure solenoid valve turns on and the pressure assist pump also turns on

   • Delay = 0: As soon as the pressure solenoid valve turns on, the pressure assist pump also turns on. The air pump cycles on and off as needed to maintain pressure for the rest of the cook cycle.

   • Delay = 1: As soon as the pressure solenoid valve turns on, the pressure assist pump also turns on. The air pump cycles on and off as needed to maintain pressure for the rest of the cook cycle.

3. Select desired delay. If 1 or more seconds of delay are chosen, the setting 3. PR ASSIST NOT NEEDED IF 'X' PSI: 0.0 ... 12.0 psi. 0.0 shown as "---" displays in Product programming mode.

4. Select desired PSI during a cook cycle, when the pressure solenoid valve is first closed, the control initiates the programmed delay period. As soon as the delay expires, the control assesses the naturally achieved pressurization level. If the pressure reading is at or above the "Not needed" psi threshold, no pressure assist is performed at all for that cook cycle; otherwise, the pressure assist pump turns on and runs as needed to maintain pressure for the rest of the cook cycle.

   • Example: (PrAssist = YES ) and (Delay >= 1 second) and (NotNeededPSI >= 0.1 psi).

Air Pump Constraints

1. The air pump is always off during the first (10) seconds of the cook cycle, because the user might still be trying to close the lid.

2. The air pump is always off if the pressure solenoid valve is off (open). The solenoid valve cycles on and off according to the programmed cook cycle.