Henny penny PFG-691 User Manual

Henny Penny

Pressure Fryer

Model PFG-691

TECHNICAL MANUAL

Model 691

This manual should be retained in a convenient location for future reference.

A wiring diagram for this appliance is located on the rear shroud cover of the control panel.

Post in a prominent location, instructions to be followed if user smells gas. This information should be obtained by consulting the local gas supplier.

Do not obstruct the flow of combustion and ventilation air. Adequate clearance must be left all around appliance for sufficient air to the combustion chamber.

The Model PFG-691 pressure fryer is equipped with a continuous pilot. But fryer cannot be operated without electric power. Fryer will automatically return to normal operation when power is restored.

Keep appliance area free and clear from combustibles.

Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance

instructions thoroughly before installing or servicing this equipment.

DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS

AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE. FIRE OR EXPLOSION COULD RESULT.

FM06-007

Revised 8-12-10 i

Model 691

HENNY PENNY

8 HEAD GAS PRESSURE FRYER

SPECIFICATIONS

Height	61” (155 cm)
Width	24” (61 cm)
Depth	41¾” (106 cm)
Floor Space	Approximately 7 sq. ft. (0.65 sq. m.)
Pot Capacity	8 Head of chicken (32 lbs.) (14.4 kg.)
	130 lbs. shortening (59 kg.)
Electrical	120 VAC, 1 Phase, 50/60 Hz, 10 Amp, 2 Wire + Ground
	240 VAC, 1 Phase, 50/60 Hz, 5 Amp, 2 Wire + Ground
Heating	Propane or Natural Gas; 100,000 BTU/hr.
Pressure	9 psi operating pressure (621 mbar)
	14.5 psi safety relief pressure (999 mbar)
Shipping Weight	Approximately 800 lbs. (363 kg.)
Accessories Shipped	Eight wire baskets, basket carrier, and standard cleaning
	brushes

A data plate, located on the right side panel, gives the information of the type of fryer, serial number, warranty date, and other information pertaining to fryer.

ii

Model 691

	TABLE OF CONTENTS
Section		Page
Section 1.TROUBLESHOOTING....................................................................................................		1-1
1-1	Introduction.....................................................................................................	1-1
1-2	Safety..............................................................................................................	1-1
1-3	Troubleshooting..............................................................................................	1-2
1-4	Error Codes.....................................................................................................	1-11
Section 2. MAINTENANCE........................................................................................................		2-1
2-1	Introduction.....................................................................................................	2-1
2-2	Maintenance Hints..........................................................................................	2-1
2-3	Preventive Maintenance..................................................................................	2-1
2-4	High Temperature Limit Control....................................................................	2-1
2-5	Power/Pump Switch........................................................................................	2-4
2-6	Temperature Probe Replacement....................................................................	2-5
2-7	Complete Control Panel - Henny Penny.........................................................	2-6
2-8	Pressure Regulation........................................................................................	2-6
2-9	Tilting the Lid Upright....................................................................................	2-7
2-10	Clean the Nylatrons.........................................................................................	2-7
2-11	Reversing the Lid Gasket................................................................................	2-8
2-12	Lid Counterweight Cables..............................................................................	2-9
2-13	Pressure Pads..................................................................................................	2-11
2-14	Lid Adjustment................................................................................................	2-12
2-15	Solenoid Valve - Above Counter.....................................................................	2-12
2-16	Solenoid Valve - Under Counter.....................................................................	2-15
2-17	Deadweight Valve...........................................................................................	2-17
2-18	Removal of Safety Valve................................................................................	2-18
2-19	Pressure Gauge................................................................................................	2-19
2-20	Gas Control Valve...........................................................................................	2-20
2-21	Blower Assembly............................................................................................	2-22
2-22	Transformer.....................................................................................................	2-23
2-23	Airflow Switch................................................................................................	2-24
2-24	Drain Microswitch..........................................................................................	2-25
2-25	Drain Valve and Extension..............................................................................	2-26
2-26	Air Valve.........................................................................................................	2-27
2-27	Cleaning the Dilution Box..............................................................................	2-28
2-28	Cleaning the Blower Wheel............................................................................	2-28
2-29	Ignition Modules.............................................................................................	2-29
2-30	Ignitor Assembly.............................................................................................	2-30
2-31	Flame Sensor Assembly..................................................................................	2-31
2-32	Ignitor and Flame Sensor Adjustment.............................................................	2-31
2-33	Nylatron Strips Replacement..........................................................................	2-32
2-34	Lubricating Lid Rollers...................................................................................	2-33
	120 Volt Wiring Diagram (SN: FH001JC & ABOVE)...................................	2-34
	208-240 Volt Wiring Diagram (SN: FH001JC & ABOVE)............................	2-35
	230 Volt Wiring Diagram (SN: FH001JC & ABOVE)...................................	2-36
	120 Volt Wiring Diagram (BELOW SN: FH001JC).......................................	2-37
	208-240 Volt Wiring Diagram (BELOW SN: FH001JC)...............................	2-38
	230 Volt Wiring Diagram (BELOW SN: FH001JC).......................................	2-39
	230 Volt Ladder Diagram (BELOW SN: FH001JC)......................................	2-40

Aug. 2010

iii

Model 691

TABLE OF CONTENTS

Section		Page
Section 3. PARTS INFORMATION.............................................................................................		3-1
3-1	Introduction.....................................................................................................	3-1
3-2	Genuine Parts..................................................................................................	3-1
3-3	When Ordering Parts.......................................................................................	3-1
3-4	Prices...............................................................................................................	3-1
3-5	Delivery...........................................................................................................	3-1
3-6	Warranty..........................................................................................................	3-1
3-7	Recommended Spare Parts for Distributors....................................................	3-1

Aug. 2010

iv

		Model 691
		SECTION 1. TROUBLESHOOTING
1-1. INTRODUCTION		This section provides troubleshooting information in the form
		of an easy-to-read table.
		If a problem occurs during the first operation of a new fryer,
		recheck the installation per the Installation Section of the
		Operator’s Manual.
		Before troubleshooting, always recheck the Operation Section of
		the Operator’s Manual.
1-2. SAFETY		Where information is of particular importance or safety related,
		the words DANGER, WARNING, CAUTION, and NOTICE
		are used. Their usage is described below.
		SAFETYALERT SYMBOL is used with DANGER,
		WARNING, or CAUTION which indicates a personal injury
		type hazard.
		NOTICE is used to highlight especially important information.
		CAUTION used without the safety alert symbol indicates
		a potentially hazardous situation which, if not avoided,
		may result in property damage.
		CAUTION used with the safety alert symbol indicates a
		potentially hazardous situation which, if not avoided,
		may result in minor or moderate injury.
		WARNING indicates a potentially hazardous situation
		which, if not avoided, could result in death or serious
		injury.
		DANGER indicates an imminently
		HAzardous situation which, if not
		AVOIDED, will result in death or serious
		INjury.
Sept. 2004		1-1

1-3. TROUBLESHOOTING

Sept. 2004

Model 691

To isolate a malfunction, proceed as follows:

1.Clearly define the problem (or symptom) and when it occurs.

2.Locate the problem in the Troubleshooting table.

3.Review all possible causes. Then, one at a time, work through the list of corrections until the problem is solved.

4.Refer to the maintenance procedures in the Maintenance Section to safely and properly make the checkout and repair needed.

If maintenance procedures are not followed correctly, injuries and/or property damage could result.

1-2

		Model 691
1-3. TROUBLESHOOTING (Continued)
Problem	Cause	Correction
	COOKING SECTION
Product color not correct:
A. Too dark	• Temperature too high	• Check temperature setting
		in the program mode; see
		programming section of
		Operator’s Manual
	• Faulty temperature probe	• Remove and replace tempera-
		ture probe
	• Shortening too old	• Change shortening
	• Shortening too dark	• Filter shortening
		• Change shortening
	• Breading product too far	• Bread product closer to
	in advance	actual frying period
B. Too light	• Temperature too low	• Check temperature setting.
		• Remove and replace tempera-
		ture probe
	• Fryer incorrect preheat	•Allow proper preheat time
	• Slow fryer heat-up/recovery	• Check gas pressure and blower
		airflow
	• Wrong cook button	• Be sure to select the
	pushed	correct product to be cooked
C. Product	• Shortening old	• Replace shortening
greasy	• Temperature too low	• Check temperature setting
		• Temperature not recovered
		when product was dropped
		in frypot
	• Faulty temperature probe	• Remove and replace defective
		temperature probe
	• Burner out of adjustment.	• Check blower airflow for
		restriction
	• Frypot overloaded	• Reduce cooking load
	• Product not removed from	• Remove product from
	frypot immediately after	frypot immediately after
	depressurization	depressurization
Sept. 2004
	1-3

			Model 691
1-3. TROUBLESHOOTING (Continued)
Problem	Cause		Correction
	COOKING SECTION (Continued)
D. Spotted	• Improper separation of the		• Load product into basket
product	product		properly
	• Breading not uniform on		• Sift breading regularly
	the product		• Separate product during
			breading
	• Burned breading particles		• Filter the shortening more
	on product		frequently
	• Product sticking together		• Separate product prior to
			pressure cooking
E. Dryness of product
	• Moisture loss prior to		• Use fresh products
	cooking
	• Overcooking the product		• Reduce cooking time
			• Reduce cooking temperature
	• Low operating pressure		• Check pressure gauge leaks
	reading, check for pressure
	• Wrong cook button pushed		• Be sure to select the correct
			product to be cooked
Product flavor (taste):
	• Breading mixture is too salty		• Sift breading after each use
A. Salty taste
			• Incorrect breading mixture
			• Discard old breading
	• Incorrect choice of breading		• Use breading designed for
			the desired product
B. Burned taste	• Burned shortening flavor		• Replace shortening
	• Cookpot not properly cleaned		• Drain and clean frypot
C. Bland taste	• Raw product not fresh		• Use fresh raw product
	• Breading mixture incorrect		• Use breading designed for
	for product (spice content		desired product
	too low)
	• Cooking temperature too		• Check temperature
	high (spice flavors lost)

Sept. 2004

1-4

				Model 691
	1-3. TROUBLESHOOTING (Continued)
	Problem	Cause		Correction
		COOKING SECTION (Continued)
	D. Rancid taste	• Shortening too old		• Replace shortening and
				follow recommended care
				and use of shortening
		• Infrequent filtering		• Replace shortening and
				follow recommended care
				and use of shortening
		• Non-compatible products		• Replace shortening
		cooked within the same		• Use compatible products and
		shortening		follow recommended care and
				use of shortening
	General:	• Raw product not fresh		• Use fresh product
		• Incorrect meat cut		• Use correct meat cutting
	A. Meat
	Separation			procedures
	from bone	• Overcooking		• Check cooking time
		• Product not fresh		• Use fresh product
	B. Bone color	• Using frozen product		• Use fresh product
	not proper	(black bone)
		• Improper processing of		• Use proper processing
		product (black bone)		procedure for product
		• Product not thoroughly		• Check cooking time
		cooked (red bone)		• Check cooking temperature
	C. Breading falls	• Incorrect breading procedures		• Use correct breading
	off			procedure
		• Product partially frozen		• Thoroughly thaw the product
				before breading
	D. Product	• Product breaded too long		• Refer to breading and
	sticking	prior to cooking		frying instructions
	together	• Improper loading procedure		• Properly load product per
				loading procedures
		• Wrong cook button pushed		• Select the correct amount of
				product to be cooked

Sept. 2004

1-5

		Model 691
1-3. TROUBLESHOOTING (Continued)
Problem	Cause	Correction
	POWER SECTION
With switch in	• Open circuit	• Check to see that unit is
POWER position,		plugged in
the fryer is completely		• Check the breaker or fuse
inoperative		at supply box
(no power)		• Check voltage at wall
		receptacle
		• Check POWER switch;
		replace if defective
		• Check cord and plug
	PRESSURE SECTION
Pressure will not	• Exhaust line from solenoid	• Turn unit off and allow
exhaust at end of	valve to exhaust tank	fryer to cool to release
cook cycle	clogged	pressure from frypot;
		clean all pressure lines,
		exhaust stacks, and exhaust
		tank
	• Solenoid valve clogged	• Check and clean solenoid
		valve
Operating	• Deadweight clogged	• Turn unit off and allow
pressure too high		fryer to cool to release
		pressure from frypot;
		remove deadweight and clean
	• Exhaust line to stack clogged	• Clean exhaust line to stack

DO NOT OPERATE UNIT. IF HIGH PRESSURE CONDITIONS EXIST, SEVERE INJURIES AND BURNS WILL RESULT. Place the Power/Pump switch in the OFF position immediately. Release the pressure by allowing unit to cool. The pressure will then drop. Do not resume use of unit until cause of high pressure has been found and corrected.

Sept. 2004

1-6

						Model 691
	1-3. TROUBLESHOOTING (Continued)
	Problem		Cause			Correction
		PRESSURE SECTION (Continued)
	Pressure does not	• Not enough product in fryer			•	Place proper quantity of
	build	or product not fresh				fresh product within
						frypot to generate steam
		• Metal shipping spacer not			•	Remove shipping spacer;
		removed from deadweight				see Unpacking section of
						Operator’s Manual
		• Lid open or not latched			•	Close and latch lid
		• Solenoid valve leaking or			•	Check or clean solenoid
		not closing				valve
		• Deadweight valve leaking			•	Repair or replace fittings, or
						deadweight body
		• Pressure not programmed			•	Check programming
		• Lid gasket leaking			•	Reverse gasket or lid needs
						adjusted
		• Safety relief valve leaking			•	Check and replace, if
						necessary
		• Pressure plate broken or crushed			• Replace pressure plate

Sept. 2004

1-7

Model 691

1-3. TROUBLESHOOTING (Continued)
Problem	Cause	Correction

HEATING OF SHORTENING SECTION

Shortening will	• Blown fuse or tripped
not heat (“E-20”)	circuit breaker at supply
	box or control panel
	• Blown fuse in PC board
	• Faulty Power/Pump switch
	• Faulty cord and plug;
	check power at receptacle
	• Faulty drain switch
	• Faulty PC Board
	• Faulty high limit control
	switch
	• Drain valve open
	• Possible faulty gas control
	valve

• Possible faulty temperature probe (“E-6”)

• Bad ignitor

• Low air pressure into burner chamber

• Faulty ignitor module

• Spark ignitor or flame sensor out of adjustment

• Gas valve knob turned to the

OFF position

•Reset breaker or replace fuse

•Replace glass fuse in board

•Check Power/Pump switch

•Check cord and plug and power at wall receptacle

•Check drain switch

•Remove and replace control panel

•Check high limit control switch; replace if necessary

•Close drain valve

•With power removed from fryer, check across electrical

leads of gas control valve with multimeter, and with gas valve knob to ON position

•Replace temperature probe

•Replace ignitor

•Clean or replace blower

•Replace air pressure switch

•Replace module

•The spark ignitor needs to be 1/8 in. (3.18 mm) from the pilot hood, and the flame sensor, 1/4 in. (6.35 mm)

•Make sure the gas valve knob is turned to the ON position

Sept. 2004

1-8

			Model 691
1-3. TROUBLESHOOTING (Continued)
Problem		Cause	Correction
	HEATING OF SHORTENING SECTION (Continued)
Heating of		• Supply line too small; low	• Increase supply line size
shortening too		gas volume	Refer to installation
slow			instructions
		• Improper ventilation	• Refer to installation
		system	instructions
			• Observe burners
			• Check gas pressure
		• Improper air flow to burners	• Check blower for resriction of
			airflow
Shortening		• Programming wrong	• Check temperature setting
overheating			in the program mode
		• Faulty PC Board	• Remove and replace control
			panel
		• Faulty temperature probe	• Remove and replace tempera-
			ture probe

Sept. 2004

1-9

			Model 691
1-3. TROUBLESHOOTING (Continued)
Problem		Cause	Correction
	SHORTENING FOAMING/DRAINING SECTION
Foaming or boiling		• Water in shortening	•At end of cook cycle,
over of			drain shortening and clean
shortening			frypot; add fresh
			shortening
		• Condensation line clogged	• Remove and clean conden-
			sation line
		• Improper or bad shortening	• Use recommended
			shortening
		• Improper filtering	• Refer to the procedure
			covering filtering the
			shortening
		• Cold zone full of cracklings	• Filter shortening
		• Improper rinsing after	• Clean and neutralize the
		cleaning the fryer	frypot; rinse with vinegar
			to remove the alkaline, then
			rinse with hot water and
			dry frypot
Shortening will		• Drain valve clogged with	• Open valve, push cleaning
not drain from		crumbs	rod through drain opening
frypot			from inside of frypot
		• Drain valve will not open by	• Replace cotter pins in valve
		pulling the handle	coupling
Shortening leaking		• Obstruction in drain	• Remove obstruction
through drain valve
		• Faulty drain valve	• Replace drain valve

Sept. 2004

1-10

				Model 691
1-4. ERROR CODES			In the event of a control system failure, the digital display will show
			an error message which are coded: “E-4”, “E-5”, “E-6”, “E-10”,
			“E-15”, “E-20A-D”, “E-41”, “E-46”, “E-47”, “E-48”, “E-70B”,
			and “E-92”. A constant tone is heard when an error code is
			displayed; and to silence this tone, press any of the product buttons.
	Display	Cause		Panel Board Correction
	“E-4”	Control board		Turn switch to OFF position, then turn switch back to ON;
		overheating		if display still shows “E-4”, the board is getting too hot; check
				for signs of overheating behind the control panel; once panel
				cools down, the controls should return to normal; if “E-4”
				persists, replace the control
	“E-5”	Shortening		Turn switch to OFF position, then back to ON; if display
		overheating		shows “E-5”, the heating circuits and temperature probe
				should be checked; once the unit cools down, the controls
				should return to normal; if “E-5” persists, replace the control
	“E-6A”	Temperature		Turn switch to OFF position, then turn switch back to ON; if
		probe open		display shows “E-6A”, have the temperature probe checked
	“E-6B”	Temperature		Turn switch to OFF position, then turn switch back to ON; if
		probe shorted		display shows “E-6B”, have the temperature probe checked
	“E-10”	High limit		Let unit cool (15-20 min.), reset high limit by manually push-
				ing up on red reset button; if high limit does not reset, high
				limit must be replaced; call Henny Penny’s Service Dept.
	“E-15”	Drain switch		Close the drain using the drain valve handle; if display still
				shows “E-15”, call Henny Penny’s Service Department
	“E-20A”	Air pressure switch		Press the timer button to try the ignition process again; and if
		failure (stuck closed)		“E-20A” persists, call Henny Penny’s Service Department
	“E-20B”	Draft fan or		Press the Timer button to try the ignition process again; and if
		air pressure		“E-20B” persists, call Henny Penny’s Service Department
		switch failure
		(stuck open)
	“E-20C”	Ignition module		Press the Timer button to try the ignition process again; and if
		failure		“E-20C” persists, call Henny Penny’s Service Department
	“E-20D”	Modules working		Press the Timer button to try the ignition process again; and if
		but no ignition		“E-20D” persists, call Henny Penny’s Service Department
	Aug. 2010			1-11

Model 691

1-4. ERROR CODES (Continued)

Display	Cause	Panel Board Correction
“E-41”	Programming	Turn switch to OFF position, then back to ON; if display
	failure	shows “E-41”, the control should be re-initialized (see Pro-
		gramming section); if the error code persists, replace the
		control panel
“E-46”	Eeprom memory	Turn switch to OFF position, then back to ON; if display
	write error	shows “E-46”, the control should be re-initialized (see Pro-
		gramming section); if the error code persists, replace the
		control panel
“E-47”	A-to-D failure	Turn switch to OFF position, then back to ON; if display
	(Analog converter	shows “E-47”, the control should be re-initialized (see Pro-
	chip)	gramming section); if the error code persists, replace the
		control panel
“E-48”	Input system	Turn switch to OFF position, then back to ON; if display
	error (CPU can’t	shows “E-48”, the control should be re-initialized (see Pro-
	read buttons	graming section); if the error code persists, replace the
	digital inputs)	control panel
“E-70B”	Faulty power	Have power switch checked, along with its wiring; have
	switch, or switch	Input/Output board replaced, if necessary
	wiring; faulty
	I/O board
“E-92”	24-VAC fuse	Have components, in 24-volt circuit (I.E., hi limit, drain
	on I/O board open	switch) checked for shorts

Oct. 2004

1-12

			Model 691
		SECTION 2. MAINTENANCE
2-1. INTRODUCTION		This section provides procedures for the checkout and replace-
		ment of the various parts used within the fryer. Before
		replacing any parts, refer to the Troubleshooting Section. It
		will aid you in determining the cause of the malfunction.
2-2. MAINTENANCE HINTS		1. You should use a multimeter to check electric components.
		2. When the manual refers to the circuit being closed, the
		multimeter should read zero unless otherwise noted.
		3. When the manual refers to the circuit being open, the
		multimeter will read infinity.
		Do not move the fryer with hot shortening in the frypot or
		filter drain pan. Severe burns can result from splashing
		hot shortening.
		4. The counterweights can be removed from the frame to easily
		access the rear of fryer.
2-3. PREVENTIVE		To ensure a long life of the fryers and their components, regular
	MAINTENANCE	maintenance should be performed. Refer to the chart below.
		Frequency	Action
		Daily	Clean deadweight valve cap, weight & dead-
			weight orifice. (See Deadweight Valve Section)
		Twice Daily	Filter shortening (See Operator’s Manual)
		Monthly	Check dilution box, Clean as needed
			(See Cleaning the Dilution Box Section)
		Monthly	Clean Nylatorons (See Clean the Nylatrons
			Section)
		Annually	Clean blower wheel (See Cleaning the Blower
			Wheel Section)
		Annually	Lubricate lid rollers in back of fryer.
2-4. HIGH TEMPERATURE			(See Lubricating Lid Rollers Section)
	LIMIT CONTROL	This high temperature control is a safety, manual reset control,
		which senses the temperature of the shortening. If the shortening
		temperature exceeds 425°F (218°C), this switch opens and shuts
		off the heat to the frypot. When the temperature of the shortening
		drops to a safe operation limit (15-20 minutes), manually reset by
		pressing the red reset button. The red reset button is located under
		the control panel, in the front of the fryer. Once reset, the
		shortening again starts heating.
	Aug. 2010	2-1

Model 691

2-4. HIGH TEMPERATURE

LIMIT CONTROL (Continued)

Checkout	Before replacing a high temperature limit control, check to see
	that its circuit is closed.

The shortening temperature must be below 380°F (193°C) to accurately perform this check.

1.Remove electrical power supplied to the fryer.

To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.

2.Remove the control panel.

3.Remove the two nuts securing the high limit bracket to unit, and pull the bracket from the unit.

4.Remove the two screws securing high limit to the bracket, and remove the high limit from the bracket.

5.Remove the two electrical wires from the high temperature limit control.

6.Manually reset the control, then check for continuity between the two terminals after resetting the control. If the circuit is open,replacethecontrol,thencontinuewiththisprocedure.(If the circuit is closed, the high limit is not defective. Reconnect the two electrical wires.)

Replacement

To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.

1.If the tube is broken or cracked, the control will open, shutting off electrical power. The control cannot be reset.

Sept. 2004

2-2

				Model 691
2-4. HIGH TEMPERATURE			2.	Drain shortening from the frypot and discard. A substance
LIMIT CONTROL				in the tube could contaminate the shortening.
		(Continued)	3.	Remove control panel.
			4.	Loosen small inside screw nut on capillary tube.
			5.	Remove capillary bulb from bulb holder inside the frypot.
			6.	Straighten the capillary tube.
			7.	Remove larger outside nut that threads into pot wall.
			8.	Remove defective control from control panel area.
			9.	Insert new control and replace screws.
			10.	Uncoil capillary line, starting at capillary tube, and insert
				through frypot wall.
				To avoid electrical shock or other injury, run the capil-
				lary line under and away from all electrical power wires
				and terminals. The tube must NEVER be in a position
				where it could accidentally touch the electrical power
				terminals.
			11.	Carefully bend the capillary tube as shown in photo and
				place into bulb brackets.
			12.	Pull excess capillary line from pot and tighten nut into
				frypot wall.
				Be sure capillary bulb of high limit is positioned so it does
				not interfere with the carrier or get damaged when
				cleaning the frypot.
			13.	With excess capillary line pulled out, tighten smaller nut.
			14.	Replace front panel and refill with shortening.
Sept. 2004				2-3

2-5. POWER/PUMP SWITCH

Checkout

Replacement

Oct. 2004

Model 691

The Power/Pumpswitch is a three-way rocker switch with a center OFF position. With the switch in the POWER position, the fryer will operate. With the switch in the PUMP position, the filter pump will operate, but the unit will not heat.

To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.

1.Remove control panel.

2.Label and remove wires from the switch.

3.“OFF” position - should be open circuit anywhere on the switch.

4.“Power” position

Check from:

#5 to #6 closed circuit #l to #2 closed circuit

5. “Pump” position Check from:

#4 to #5 closed circuit #3 to #2 closed circuit

Check across the jumpers on the wires of the Power/ Pump switch. These jumpers have resistors and capacitors which may be faulty.

1.With control panel removed, and wires off of the switch, push in on tabs on the switch to remove from the panel.

2.Replace with new switch, and reconnect wires to switch following the wiring diagram.

3.Replace the control panel.

2-4

2-6. TEMPERATURE PROBE

REPLACEMENT

Figure 2-1

Figure 2-2

May 2007

Model 691

The temperature probe relays the actual shortening temperature to

the control. If it becomes disabled, “E06” will show in the display.

Also, if the temperature is out of calibration more than 10°F, or 10°C, the temperature probe should be replaced. An Ohm check can be performed also. See chart at end of this section.

1.Remove electrical power supplied to the fryer.

To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.

2.Drain the shortening from the frypot.

3.Remove the control panel.

4.Using a 1/2” wrench, remove the nut on the compression fitting.

5.Remove the temperature probe from the frypot.

6.Place the nut and new ferrule on the new temperature probe and insert the temperature probe into the compression fitting until it extends 1/2 inch (1.3 cm) into the frypot. Use the temperature probe gauge provided in the temperature probe kit, to ensure proper placement in frypot. See Figures 2-1 and 2-2.

7.Tighten hand tight and then a half turn with wrench.

Excess force will damage temperature probe.

8.Connect new temperature probe to PC board and replace control panel.

9.Replace shortening, then turn power ON, and check out fryer.

2-5

			Model 691
2-7. COMPLETE CONTROL		Should the control panel become inoperative, follow these
	PANEL - HENNY PENNY	instructions for replacing the board.
		1.	Remove electrical power supplied to the fryer.
			To avoid electrical shock or property damage, move the
			power switch to OFF and disconnect main circuit
			breaker, or unplug cord at wall receptacle.
		2.	Remove the two screws securing the control panel and lift
			panel up and out.
		3.	Unplug the connectors going to the control board.
		4.	Install a new control panel.
2-8. PRESSURE REGULATION		The Henny Penny fryer uses pressure as one of the components
		of the cooking process. Once the lid is sealed to the frypot and
		the solenoid valve closes, a deadweight valve maintains the
		correct pressure in the frypot.

The lid has minimal and limited maintenance and repair procedures, which are addressed in the following sections.

The following is a routine maintenance schedule for the lid:

Every 90 days

•Clean and reverse the lid gasket

Yearly Inspection

•Check lid gasket for splitting and tears - replace if needed

•Check pressure pads for wear - rotate if needed

•Check cam slide guides - replace if worn or broken

•Check lid rollers - replace if cracked or damaged

•Lubricate rear lid rollers

•Cleaning safety relief valve

Oct. 2004

2-6

	Model 691
2-9. TILTING THE LID	The lid assembly is easily tilted up for cleaning or servicing.
UPRIGHT

1. Raise the lid and remove racks and carrier.

2. Grasping the lid handle, lift the front of the lid up until it stops in an upright position.

2-10. CLEAN THE NYLATRONS

Sept. 2004

Be sure the metal arm on the left side of the lid is in the vertical position holding the lid upright, or severe injuries could result. (See photo at left.)

1.Spray Henny Penny biodegradable, food safe, foaming degreaser (part no. 12226) on Nylatrons.

2.Raise lid up and down several times to spread degreaser.

3.Wipe Nylatrons to remove food soil, grease, and degreaser residue.

2-7

	Model 691
2-11. REVERSING THE LID	The gray rubber gasket surrounding the inside of the lid is
GASKET	designed to be reversed.
	Because of heat expansion and the pressure used for the cook-
	ing process, the gasket is constantly under extreme stress.
	Reversing the lid gasket will help to ensure that the fryer will
	not lose pressure through leakage.
	1. Put the lid in the upright position, as previously described.
	2. Using a thin blade screwdriver, pry out the gasket at the
	corners. Remove the gasket.
	Check the gasket for any tears or nicks. If the gasket is
	damaged, it needs to be replaced.
	Be sure the metal arm on the left side of the lid is in
	the vertical position holding the lid upright, or severe
	injuries could result. (See photo in Tilting the Lid Up-
	right Section.)
	3. Clean the gasket and gasket seat with hot water.
	4. Rotate the gasket with the opposite side facing out.
	Install the fourcorners of the lid gasket. Smooth the gasket
	into place, working from the corners towards the middle of
	each side.

Sept. 2004

2-8

Model 691

2-12. LID COUNTERWEIGHT The lid counterweight in the back of the fryer balances the CABLES weight of the lid system to allow easier opening and closing of the lid. The weight has two cables attached to it, and weighs about

150 lbs. (68.0 Kg).

1.Using a Phillips head screwdriver, remove screws securing the back and top shrouds of the fryer and remove the shrouds.

2.Raise the lid.

3.Remove the steam box.

4.Remove the nipples from the deadweight and solenoid that are attached to the front shroud.

5.Remove the screws securing the shroud to the frame and remove the shroud.

6.Remove the nut from the nylatron slide and flip loosened end up over the lid.

7.Remove four keps nuts from bracket at top of the shroud.

8.Place support under lid arm (ex: block of wood), and remove the weights from the frame in the back of the fryer.

Sept. 2004

2-9

		Model 691
2-12. LID COUNTERWEIGHT	9.	Remove the Allen head bolts securing the stabilizer bracket
CABLES (Continued)		and remove the bracket.
	10.	Remove the bolts and spacers securing the pulley bracket,
		and pull bracket back, to allow access to cable bracket.
	11.	Pull cable and bracket from unit and remove cable from
		bracket.
	12.	Remove cable from weight frame.
	13.	Thread new cable through pulley.
	14.	Thread nut on cable and place cable through weight frame.
	15.	Thread second nut onto end of cable, but do not tighten.
	16.	Thread nut on other end of cable and place through the
		bracket, then thread a second nut on the end of the cable.
		Tighten the nut to the bracket. Two inches (50.8 mm) of the
		threaded end should show above the bracket. See photo below.

2 inches (50.8 mm)

Both cables should havesameamount of threads extending through the brackets.

17.Tighten cable onto weight frame.

18.Reassemble in reverse order.

Be sure to use pipe sealant on the pipe fittings.

Sept. 2004

2-10

2-13. PRESSURE PADS

Sept. 2004

Model 691

The pressure pads are plastic strips that the lid cam presses against to seal the lid. They are located on top of the shims.

1.Raise the lid.

2.Remove the four screws securing the lid cover and remove cover.

3.Push the lid cam back, off the pressure pads.

4.Using an Allen wrench, remove large bolt securing the pad.

5.Using a Phillips head screwdriver, remove the small screw securing the pad securing the pressure plate and remove the broken pad.

If the pressure pad is worn, but not broken, it can be reversed 180 degrees, and the other end of the pad used.

6.Install new pad in reverse order.

2-11

	Model 691
2-14. LID ADJUSTMENT	If steam leaks out from around the lid gasket, the pressure pads
	could be worn or broken. If the pressure pad is worn, but not
	broken, it can be reversed 180 degrees, and the other end of the
	pad used. See Pressure Pads Section.
	If steam leaks, check for:

• Pressure pad wear

• Cracked or worn gasket

• Gasket installed improperly

• Fryer operating above 12 psi (827 mbar)

	Fryer should be operating at 12 psi (827 mbar), or
	serious burns could result.
2-15. SOLENOID VALVE-	This is an electromechanical device that causes pressure to be
ABOVE COUNTER	held in the frypot. The solenoid valve closes at the beginning
	of the cook cycle and opens automatically at the end of the
	cook cycle. If this valve should become dirty, or the Teflon
	seat nicked, pressure will not build up. The gas fryer uses a
	120 volt, 60 Hz coil (208/240 volt, 50 Hertz internationally).

To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.

Coil Check Procedure

Remove the solenoid wires from the wire nuts which are found behind the access panel on the right side panel. Check across wires.

	RESULTS
208/240 Volt, 60 Hertz	150 Ohms
208/240 Volt, 50 Hertz	230 Ohms
120 Volt, 60 Hertz	50 Ohms

Sept. 2004

2-12