Henny Penny 520 User Manual
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Henny Penny Model 520
SECTION 3. OPERA TION
3-1. OPERA TING CONTROLS
Item Description Function
1 Main Power Switch A three way rocker switch with a center off position. Pressing
with Built- In Indicator the left side of the rocker switch (COOK position) operates the
Lights fryer, and the amber light illuminates. No light is visible when
the switch is in the OFF position. T o filter, press the right side
of the rocker switch (PUMP position) to operate the pump
motor, and the red light illuminates.
2 Single Stage An electromechanical device used to regulate temperature.
Thermostat To set the desired cooking temperature, turn the thermostat
knob clockwise.
3 Temperature Light Illuminates when the shortening temperature is below the
set-point temperature. The light goes off when the shortening
reaches the set-point temperature.
4 Timer An electromechanical device that controls the length of the
cooking cycle. The timer controls the operation of the solenoid
valve and automatically resets at the end of the cooking time.
Set the desired cooking time by turning the grayknob clockwise
until the arrow points at the desired cooking time. Pushing on
the red button, activates the timing cycle and closes the solenoid. The red arrow times down to zero (0), while the black
arrow remains at the preset time. When the red arrow reaches
zero (0), it automatically goes back to the preset time. Also, the
solenoid opens, releasing the pressure inside the frypot.
A. Set gray knob to desired time.
B. Push red button to start timing cycle and build pressure.
C. When red arrow reaches zero (0), it resets to preset time
and pressure is released.
5 End of Cooking Cycle A. The timer buzzer sounds, the solenoid valve opens to
release pressure, and the timer resets.
B. Move the timer switch to the OFF position.
6 Dead W eight V alve Maintains a constant level of steam pressure within the frypot.
Assembly Excessive steam pressure is vented through the exhaust stack.
NOTE
Remove the dead weight cap, and clean the cap, weight,
and orifice once a day to prevent over-pressurization inside
the frypot. See section 5-16.
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Henny Penny Model 520
Item Description Function
7 Safety Relief V alve The safety relief valve is set at 14.5 PSI (99.9 KPa). In the
event that the dead weight valve becomes clogged, the safety
valve releases excessive pressure, keeping the frypot at a
maximum of 14.5 PSI (99.9 KPa). If this occurs, turn the main
power switch to the OFF position to release all pressure from
the frypot. Also, clean the dead weight valve at this time.
DO NOT pull the Safety Relief Valve Ring, or severe burns
will result.
8 Pressure Gauge Indicates nominal pressure within the frypot. This gauge is not
used to calibrate the dead weight assembly . Operating pressure
of the dead weight assembly is preset at the factory .The gauge
is used as an indication of pressure build up within the frypot.
9 Solenoid V alve An electromechanical device that causes pressure to be held in
the frypot. The solenoid valve closes at the beginning of the
cooking cycle and automatically opens at the end of the cooking
cycle.
10 Drain V alve A two way ball valve, normally in the CLOSED position. T o
open the drain, pull the handle slowly outward, away from the
fryer . This releases the oil from the frypot into the filter drain
pan. Push it back in to close the valve.
DO NOT open the drain valve while frypot is under
pressure. Hot shortening exhausts from this valve.
Severe burns will result.
11 Drain Interlock Switch A microswitch that provides protection for the frypot in case the
operator drains shortening from the frypot while the main
switch is in the POWER position. The switch is designed to
automatically remove power from the heating elements when
the drain valve is open.
12 Filter V alve A two way ball valve which operates in conju nction with the
filtering system. W ith the handle in the open position (handle
facing vertical by turning it counterclockwise) and the main
power switch in the PUMP position, this valve directs the
filtered shortening from the drain pan back to the frypot. T o
close the filter valve, turn it clockwise to the horizontal position.
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520
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High Temperature
Control
Lid/Locking Assembly
Fun~tio~
The high temperature thermostat is a manual reset control
which senses the temperature of the shortening. If the shortening temperature exceeds the safe operating limit, this control
will remove power from the contactors, thus removing heat
to the cook pot. When the temperature of the shortening drops
to preset safe operating limit, the control must be manually
reset. The reset button is located on the upper surface of the
recess in the front panel below the regulating thermostat.
Before pressure will build in the cook pot, the lid must be closed
and locked. To close the lid, push the lid down with one hand
by using the plastic handle on top of the lid. While holding the
lid closed with one hand,. turn the handle on the latch
counterclockwise 160 o (until it contacts the stop) to lock the lid.
DO NOT place your free hand on top of the lid during
the latching procedure. The surface may be hot and
burns could result.
15
Condensate Drain Pan
The lid will not latch or pressure build unless the handle is fully
latched. As pressure builds within the cook pot, the handle will
be locked in place. As long as the locking assembly is engaged,
it will prevent the handle from being moved clockwise and
opening the lid. The locking assembly disengages when the
internal pressure falls below 1 PSI (6.8 KPa).
The condensate drain pan is located behind the panel, below
the drain and filter valve handles. Remove the panel and the
condensate pan is located on the left. It can be easily removed
by grasping the handle and pulling out carefully. The condensation pan should be emptied daily.
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Henny Penny Model 520
Item 6 Item 7
Item 9 Item 10
Item 11 Item 12
Item 9
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