Pressure

Lid Assembly Interactive Parts Diagram

Henny Penny Operational Training - Lid Assembly

Close the lid by applying pressure down on the cross arm and pulling up on the lid latch. Excessive slamming shut and flinging open of lid will break the lid spring. Turn the spindle until it does not turn anymore and the red knobs line up. Over-turning the spindle puts excessive stress on the locking collar pin and can break it.

As pressure in the fry pot builds, the lid liner pushes up on the locking pin, which then locks into a notch in the locking collar.

Inside of the cross arm is where the locking collar, thrust ball, ball sit, and locking pin are located.

The cross arm secures the lid to the fry pot, and the retaining pin secures the cross arm to the lid. If the retaining pin cannot be pulled out, it either is too dirty or is bent.

When separating the cross arm from the lid, make sure the spindle is fully up, turned counterclockwise. With non-dominant hand, apply downward pressure to cross arm and pull retaining pin forward. with dominant hand, lift up lid latch and cross arm.

To reattach the cross arm to the lid, make sure the spindle is all the way up. With non-dominant hand, push the cross arm down until it doesn't go any farther, lift the latch with dominant hand while pushing cross arm down, then pull retaining pin and push down until two clicks are heard.

Deadweight Valve Assembly Interactive Parts Diagram

Henny Penny Operational Training - Deadweight Valve Assembly

Henny Penny Operational Training - Pressure Gauge

Henny Penny Operational Training - Safety Relief Valve 

The deadweight valve assembly is a mechanical component designed to help regulate the operational pressure inside the fry pot (12 psi).

The pressure gauge is a mechanical device that measures the amount of pressure inside the fry pot.

The green area of the pressure gauge indicates normal operating pressure (12 psi).

The yellow area of the pressure gauge indicates over-pressurization.

The safety relief valve is a mechanical safety component designed to release pressure when pressure inside the fry pot exceeds 14.5 psi.

Having to manually use the safety relief valve regularly could indicate a clog in the steam box, deadweight valve assembly, or pressure solenoid.

The fryer will over-pressurize if the deadweight cap is not clean and deadweight movement is restricted.

Solenoid Valve Assembly Interactive Parts Diagram

Henny Penny Operational Training - Solenoid Valve Assembly

The pressure solenoid is an electromechanical component designed to help trap and release pressure during and after the cooking cycle. It is comprised of a housing block—which houses coil that becomes a magnet when energized—and a mechanical valve.

The solenoid is open by default. When voltage is applied to the coil, it draws the plunger up, closing the valve and compressing the spring on the top of the plunger. When the voltage is removed, the spring expands, opening the valve.

Two possible issues with the solenoid:

• Pressure does not build—most likely due to a compromised coil that no longer magnetizes

• Pressure does not release—most likely due to a dirty valve

Magnetism of the coil can be tested by holding a ferrous (magnetic) material, like a screwdriver, on top of the bonnet of the solenoid during a cook cycle. If it is magnetized, a slight magnetic pull should be felt.

Exhaust Stack Assembly Interactive Parts Diagram

Henny Penny Operational Training - Exhaust Stack Assembly

The exhaust stack helps quiet the fryer and helps condense any steam released.

The steam contains small amounts of oil, which builds up in the exhaust stack over time and needs to be cleaned out. This can be done during the boil out process by pouring eight ounces of the hot degreaser solution from the fry pot into the exhaust stack.

If the condensation pan does not have any water in it, the exhaust stack or condensation line has a clog.

If there is excessive oil in the condensation pan, the fry pot is being overfilled.

Henny Penny Operational Training - Pressure System Troubleshooting

If the lid is not able to remain open by itself, it is most likely due to the lid spring being broken.

If the lid cannot hold itself open at a 45° angle, it could be due to a weak spring—from slamming the lid shut and/or flinging it open—or from excess weight (oil) in the lid liner.

If there is a dimple in the lid liner, it means the locking pin is pressing into it due to the spindle being out of alignment.

If the fryer is not building pressure:

• The shipping clip may still be in the deadweight valve and needs removed

• The deadweight may be missing

• There is not enough product being cooked to produce pressure

If the fryer is building too much pressure:

• The deadweight may be dirty

• Too much product may be getting cooked

• The exhaust stack may be clogged

If the needle in the pressure gauge moves up/down slowly, it may have oil buildup inside.

If the safety relief valve is leaking steam, the gasket may not be sealing and may need cleaned or replaced.

If the safety relief valve opens at less than 14.5 psi, the inner mechanism has been compromised from manually releasing it too much.

If water is spewing from the exhaust stack, it has too much oil buildup and needs disassembled and cleaned.

If the condensation pan does not contain any water, the water is trapped in the exhaust stack and there is a clog either in the exhaust stack or the condensation line.