Henny Penny 500 Service Manual page 173

C C h h a a p p t t e e r r 4 4 P P r r e e s s s s u u r r e e A A s s s s i i s s t t
F F e e a a t t u u r r e e s s a a n n d d F F u u n n c c t t i i o o n n
Pressure Assist is an optional, purchasable feature 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, to raise the vat
pressure to the required 12 PSI cooking pressure. Low vat pressure will not allow the
food to cook properly and consistently. But 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 quality product in smaller amounts as needed.
4 4 . . 1 1 S S o o f f t t w w a a r r e e
4 4 . . 1 1 . . 1 1 C C 8 8 0 0 0 0 0 0 C C o o n n t t r r o o l l l l e e r r
Access the Pressure Assist settings by doing the following:
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.
NOTE: 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 displays 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: 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 pressure assist
pump 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 Pro-
gramming mode.
4. Select desired P.S.I. 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 con-
trol 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 pres-
sure for the rest of the cook cycle.
EXAMPLE: (PrAssist = YES) and (Delay >= 1 second) and (NotNeededPSI >= 0.1
psi)
Air Pump Constraints:
159