Henny Penny 520 User manual

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Henny Penny Model 520
SECTION3.OPERATION
3-1. OPERATINGCONTROLS
Item Description Function
1 MainPowerSwitch Athreewayrockerswitch withacenter offposition. Pressing
withBuilt-InIndicator the left side of the rocker switch(COOKposition)operatesthe
Lights fryer,andtheamberlightilluminates. Nolightisvisiblewhen
theswitch isinthe OFF position. To filter, presstheright side
ofthe rocker switch (PUMP position)tooperatethe pump
motor,andtheredlightilluminates.
2 SingleStage An electromechanicaldeviceusedto regulatetemperature.
Thermostat To setthe desiredcookingtemperature, turn thethermostat
knobclockwise.
3 TemperatureLight Illuminateswhentheshorteningtemperatureisbelowthe
set-pointtemperature. Thelightgoesoff whenthe shortening
reachesthe set-point temperature.
4 Timer An electromechanicaldevicethat controlsthelengthofthe
cookingcycle.Thetimer controlsthe operationofthesolenoid
valveandautomaticallyresets atthe endofthecookingtime.
Setthedesiredcooking timeby turningthe grayknobclockwise
untilthearrowpointsatthe desiredcooking time.Pushing on
thered button,activatesthe timing cycleand closes thesole-
noid. Theredarrow times down to zero (0), while the black
arrowremainsatthepreset time. When the red arrow reaches
zero(0), it automatically goes backtothepreset time. Also, the
solenoidopens,releasingthe pressureinside thefrypot.
A. Setgray knob to desired time.
B. Push redbutton tostarttiming cycleandbuild pressure.
C. Whenred arrow reaches zero (0), it resets to presettime
andpressure is released.
5 Endof CookingCycle A. Thetimer buzzersounds,the solenoidvalve opensto
releasepressure, and the timer resets.
B. Move thetimerswitch to theOFFposition.
6 DeadWeightValve Maintainsaconstant levelof steampressure withinthe frypot.
Assembly Excessivesteam pressureis ventedthroughthe exhauststack.
NOTE
Removethe dead weight cap,andcleanthe cap, weight,
andorifice oncea day toprevent over-pressurizationinside
the frypot. See section 5-16.
402 3-1

Henny Penny Model 520
Item Description Function
7 SafetyReliefValve Thesafetyreliefvalve is set at 14.5 PSI (99.9 KPa). In the
eventthat thedeadweight valvebecomes clogged, thesafety
valvereleases excessive pressure,keeping the frypotata
maximumof 14.5 PSI(99.9KPa).If this occurs,turnthe main
powerswitch to the OFF positiontoreleaseall pressure from
thefrypot. Also, cleanthedead weightvalveat thistime.
DONOTpulltheSafety ReliefValveRing, orsevereburns
willresult.
8 PressureGauge Indicatesnominalpressurewithinthefrypot.Thisgaugeisnot
usedto calibrate thedead weight assembly. Operatingpressure
ofthe dead weightassemblyis preset atthefactory .The gauge
isusedasan indicationof pressurebuild upwithin thefrypot.
9 SolenoidValve An electromechanical devicethatcauses pressuretobe heldin
thefrypot.Thesolenoidvalveclosesatthebeginningofthe
cookingcycle andautomatically opensatthe endofthe cooking
cycle.
10 DrainValve Atwowayball valve,normallyin theCLOSED position.To
openthedrain,pull thehandle slowlyoutward, awayfromthe
fryer.Thisreleasestheoilfromthefrypot intothefilterdrain
pan. Pushitbackin to close the valve.
DONOT openthedrain valve whilefrypotis under
pressure. Hotshorteningexhaustsfromthis valve.
Severeburnswillresult.
11 DrainInterlockSwitch Amicroswitchthatprovides protectionfor thefrypotin casethe
operatordrainsshorteningfromthefrypot whilethemain
switchis inthePOWER position. Theswitchis designedto
automaticallyremovepowerfromtheheatingelementswhen
thedrainvalveis open.
12 FilterValve A two wayball valvewhichoperatesin conjunctionwiththe
filteringsystem. With thehandleintheopenposition(handle
facingverticalbyturningitcounterclockwise)andthemain
powerswitchinthe PUMPposition, thisvalvedirectsthe
filteredshortening fromthedrain pan backtothe frypot. To
closethefilter valve,turnitclockwiseto thehorizontal position.
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ke
15
High Temperature
Control
Lid/Locking Assembly
Condensate Drain Pan
Fun~tio~
The high temperature thermostat is a manual reset control
which sensesthe temperature of the shortening. If the shorten-
ing temperature exceedsthe 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 cookpot, 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 160o(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.
The lid will not latch or pressure build unlessthe handle is fully
latched. As pressure builds within the cookpot, the handle will
be locked in place. As long asthe 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 conden-
sation pan should be emptied daily.
3-3

Henny Penny Model 520
Item 6 Item 7
Item 9 Item 10
Item 11 Item 12
Item 9
3-4 101

The first step in the use of the Henny Penny Model 520 is to
learn the controls. Next, determine the time and temperature
settings. The following will assist you in determining these
settings but are approximate and will vary with the size and
quantity of the raw product.
Chicken - 9 piece fresh; 1 head, 2 l/2 - 2 3/4 lbs. (1.13 kg -
1.24 kg)
1 head
2 head
Max Load 8 lbs.
(3.62 kg)
325°F (163°C)
325“F (163“C)
325“F (163“C)
11 minutes
12 minutes
13 minutes
Chicken - 9 piece frozen; 1 head 2 3/4 lbs. (1.24 kg)
tit T
etti c
1 head 325“F (163“C) 17 l/2 minutes
2 head 325“F (163“6) 18 minutes
Max Load 8 lbs. 325“F (163“C) 19 minutes
(3.62 kg) ,’

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The following procedures should be followed in the initial
start-up of the fryer and each time the fryer is brought from
a cold or shut down condition back into operation.
1. Check to see that all control switches are turned OFF.
2. Be sure that the drain valve and filter valve are closed.
3. Remove the wire basket from the cook pot and leave the
lid open.
4. Fill the cook pot with shortening to level indicated. The
level indication isthe maximum shortening level when hot.
5. Connect the power to the fryer.
6. Move the main power switch to the COOK position.
7. Turn the thermostat knob to the desired cooking
temperature. The temperature light will go on.
8. When the shortening has reached the desired cook
temperature, the temperature indicating light will be off.
9. Thoroughly stir the shortening to stabilize’the temperature
throughout. Make sure that the shortening at the bottom
of the pot is agitated and evenly heated.
10. After the shortening temperature has stabilized for a
minimum of 30minutes, checkthe shortening temperature
using a good deep fat thermometer (Henny Penny part
no. 121006).
11. Lower the empty basket into the cook pot (food will be
added later).
12. Select the desired cooking time. You are ready to start
cooking.
NOTE: The overall operation of the 520 Fryer is no
different than our present Model 500 or Model
600 Pressure Fryers.
1. It is recommended that ahigh quality liquid frying shorten-
ing beusedin the pressure fryer. Somelow grade shorten-
ings have a high moisture content and will causefoaming
and boiling over.
2. If a solid shortening is used, it must be melted to a liquid
first, then poured into the frypot. Attempting to melt a “I
shortening in the frypot may causeburning or scorching ‘+I
of the fresh shortening.

el 520
Step 3
3-5. COOKING
Gloves should be worn and care must be taken when
pouring hot shortening into the unit. Severeburns could
result. Also, when adding fresh shortening to existing
shortening, care must be taken to avoid splashing.
3. Cold shortening should be filled approximately 112inch
below the bottom level of the level indicator line. The
shortening will expand when heated.
1. Before dropping the product into the basket, make certain
that the shortening is at the correct cooking temperature
for the type of product. Also, check that the temperature
light is OFF. Oncethe product hasbeen prepared, you are
ready to cook. Place the basket in the cook pot a few
seconds before placing the product in the basket.
2. Place the product into the submerged basket by first
dropping in the larger pieces. This gives the larger and
more difficult pieces a few .extra seconds to cook in the
shortening. Continue to place the remaining product in
the basket.
3. Lift the basket slightly out of the shortening and shake
it, causing the pieces to separate. Return the basket to
the shortening. Doing this will prevent white spots on the
finished product.
4. Remove the basket handle and closethe lid quickly. Latch
the lid as previously described.
5. Activate the time as previously described. Within a few
minutes, the pressure gauge will increase to the operating
zone.
6. At the end of the cooking cycle,the fryer will automatically
depressurize. Also the timer light will go off and the timer
will automatically reset.
7. After the pressure drops to 0, open the lid latch assembly
by turning the handle clockwise 160O.

Henny Penny Model 520
3-5. COOKINGPROCEDURES 8. Raise thelidpromptlytoallowmostof thecondensation
(Continued) onthe lidtodrain downand outthroughthe drainchannel.
Donot let thelidslam up against thebackstop. This could
damagethehingeassembly.Thiswillalsoallowcondensationto
dropback intotheshortening.
NOTE:Thecondensation opening behind the pot needs to be
keptclear of obstructions. Failuretodoso will cause the
moistureto back up onto the countertop.
9. Insert the handleintothe basket, liftthebasket out of the
shortening,and hang it on thesideofthe cook pot to drain.
Allowthe product todrainapproximately 15 secondsbefore
placingitintothetray.
10. Thefryerwill automaticallyrecover tothepresetcooking
temperature. Oncethe thermostatindicator light goesout, you
canbeginthe nextcook cycle. Iffiltering ofshorteningis
desiredat this time,referto thenextsection.
NOTE: Whennoadditionalcookingisintendedwithin30minutes
ofthe previous cookcycle,it is recommended to reduce
theshorteningtemperature(byturningthethermostat
knobcounterclockwise) to 275oF(135oC).
Fourproduct controls,usethe “C” (up anddown)
buttonsandselectIdle. Thecontrolswillautomatically
reduce the temperature to 250oF (121oC).
3-6.FILTERINGTHE Cooking breadedproductsrequires frequentfilteringto keep
SHORTENING theshorteningclean.Theshorteningshouldbefilteredafter
everythree to six cooking cycles.Forthebest quality product, do
notexceedsix cookcycleswithoutfiltering.
1. Turnthethermostatand the mainpowerswitch to the OFF
position.Remove and clean thefrybasketin soap and water.
Rinsethoroughly.
NOTE:Forbestresults, filtershorteningatnormalcooking
temperature.
2. Usea metalspatula toscrapebuildup fromsides ofthe frypot.
Whenusing thepotscraper, donotdamage thecapillaryline on
thethermostat, or thehigh limit control. Also,donot scrape the
heatingelements,ordamageto elementscould result.
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The filter pan must be in the proper position beneath
the drain valve. This will prevent the splashing of the
hot shortening as it drains into the filter drain pan
which would cause burns.
3. Open the drain valve by pulling it forward slowly. This
will prevent excessive splashing of the hot shortening as
it drains into the filter drain pan.
4. As the shortening drains from the fry pot, use bushes
(Henny Penny part no. 12105)to scrapeand cleanthe sides
of the fry pot and the heating elements. If the drain fills
with breading, use the white brush to push the breading
into the filter pan.
5. When all of the shortening has drained, scrape or brush
the sides and the bottom of the cook pot.
6. Rinse the cook pot as follows:
A. Close the drain valve by pushing the handle inward.
B. Open the filter valve by turning the handle counter-
clockwise.
Hold the lid closed so that the very first surge of the
shortening will not splashup or over the top of the cook
pot’. Severe burns will result.
C. Move the main power switch to the PUMP position.
Carefully open the lid to see if shortening is return-
ing properly. Fill cook pot l/3 full, then turn off the
mum. ..
If there are air bubbles coming up in the shortening,
it ispossiblethat the filter connecting union onthe filter
tube line is not tightened properly. If so, turn off the
pump and use gloves to tighten the union. *Thisunion
will be hot and severe burns will result.