Frymaster BIELA14 User Manual

SERVICE AND PARTS MANUAL FRYMASTER BIELA14 SERIES GEN II LOV™ ELECTRIC FRYER

This equipment chapter is to be installed in the Fryer Section of the

Equipment Manual.

MANUFACTURED

BY

8700 Line Avenue

SHREVEPORT, LOUISIANA 71106

PHONE: [phone]

TOLL FREE: 1-800-551-8633

1-800-24 FRYER

FAX: [phone]

FOR YOUR SAFETY

Do Not Store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

Frymaster L.L.C., 8700 Line Avenue, Shreveport, LA 71106

	PHONE [phone]	FAX [phone]
PRINTED IN THE UNITED STATES	SERVICE HOTLINE
	1-800-24-FRYER		MAY 2011
www.frymaster.com	email: [e-mail]		*8196446*

NOTICE

IF, DURING THE WARRANTY PERIOD, THE CUSTOMER USES A PART FOR THIS MANITOWOC FOOD SERVICE EQUIPMENT OTHER THAN AN UNMODIFIED NEW OR RECYCLED PART PURCHASED DIRECTLY FROM FRYMASTER DEAN, OR ANY OF ITS AUTHORIZED SERVICE CENTERS, AND OR THE PART BEING USED IS MODIFIED FROM ITS ORIGINAL CONFIGURATION, THIS WARRANTY WILL BE VOID. FURTHER, FRYMASTER DEAN AND ITS AFFILIATES WILL NOT BE LIABLE FOR ANY CLAIMS, DAMAGES OR EXPENSES INCURRED BY THE CUSTOMER WHICH ARISE DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, DUE TO THE INSTALLATION OF ANY MODIFIED PART AND/OR PART RECEIVED FROM AN UNAUTHORIZED SERVICE CENTER.

NOTICE

This appliance is intended for professional use only and is to be operated by qualified personnel only. A Frymaster Dean Authorized Service Agency (ASA) or other qualified professional should perform installation, maintenance, and repairs. Installation, maintenance, or repairs by unqualified personnel may void the manufacturer’s warranty.

NOTICE

This equipment must be installed in accordance with the appropriate national and local codes of the country and/or region in which the appliance is installed.

DANGER

All wiring connections for this appliance must be made in accordance with the wiring diagrams furnished with the equipment. Wiring diagrams are locted on the inside of the fryer door.

NOTICE TO U.S. CUSTOMERS

This equipment is to be installed in compliance with the basic plumbing code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the U.S. Food and Drug Administration.

NOTICE TO OWNERS OF UNITS EQUIPPED WITH COMPUTERS

U.S.

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: 1) This device may not cause harmful interference, and 2) This device must accept any interference received, including interference that may cause undesired operation. While this device is a verified Class A device, it has been shown to meet the Class B limits.

CANADA

This digital apparatus does not exceed the Class A or B limits for radio noise emissions as set out by the ICES-003 standard of the Canadian Department of Communications.

Cet appareil numerique n’emet pas de bruits radioelectriques depassany les limites de classe A et B prescrites dans la norme NMB-003 edictee par le Ministre des Communcations du Canada.

DANGER

Improper installation, adjustment, maintenance or service, and unauthorized alterations or modifications can cause property damage, injury, or death. Read the installation, operating, and service instructions thoroughly before installing or servicing this equipment.

DANGERi

The front ledge of this appliance is not a step! Do not stand on the appliance. Serious injury can result from slips or contact with the hot oil.

DANGER

Do not store or use gasoline or other flammable liquids or vapors in the vicinity of this or any other appliance.

DANGER

The crumb tray in fryers equipped with a filter system must be emptied into a fireproof container at the end of frying operations each day. Some food particles can spontaneously combust if left soaking in certain shortening material.

WARNING

Do not bang fry baskets or other utensils on the fryer’s joiner strip. The strip is present to seal the joint between the fry vessels. Banging fry baskets on the strip to dislodge shortening will distort the strip, adversely affecting its fit. It is designed for a tight fit and should only be removed for cleaning.

i

DANGER

Adequate means must be provided to limit the movement of this appliance without depending on or transmitting stress to the electrical conduit. A restraint kit is provided with the fryer. If the restraint kit is missing contact your local Frymaster Authorized Service Agency (ASA) for part number 826-0900.

DANGER

This fryer may have two power cords and prior to movement, testing, maintenance and any repair on your Frymaster fryer; disconnect all electrical power cords from the electrical supply.

WARNING

Do not use water jets to clean this equipment.

LOV™ ELECTRIC WARRANTY STATEMENT

Frymaster, L.L.C. makes the following limited warranties to the original purchaser only for this equipment and replacement parts:

A.WARRANTY PROVISIONS - FRYERS

1.Frymaster L.L.C. warrants all components against defects in material and workmanship for a period of two years.

2.All parts, with the exception of the frypot, O-rings and fuses, are warranted for two years after installation date of fryer.

3.If any parts, except fuses and filter O-rings, become defective during the first two years after installation date, Frymaster will also pay straight-time labor costs up to two hours to replace the part, plus up to 100 miles/160 km of travel (50 miles/80 km each way).

B.WARRANTY PROVISIONS - FRYPOTS

The frypot has a lifetime parts and labor warranty. If a frypot develops a leak after installation, Frymaster will replace the frypot, allowing up to the maximum time per the Frymaster time allowance chart hours of straight-time labor. Components attached to the frypot, such as the high-limit, probe, gaskets, seals, and related fasteners, are also covered by the lifetime warranty if replacement is necessitated by the frypot replacement. Leaks due to abuse or from threaded fittings such as probes, sensors, high-limits, drain valves or return piping are not included.

C.PARTS RETURN

All defective in-warranty parts must be returned to a Frymaster Authorized Factory Service Center within 60 days for credit. After 60 days, no credit will be allowed.

D.WARRANTY EXCLUSIONS

This warranty does not cover equipment that has been damaged due to misuse, abuse, alteration, or accident such as:

•improper or unauthorized repair (including any frypot which is welded in the field);

•failure to follow proper installation instructions and/or scheduled maintenance procedures as prescribed in your MRC cards. Proof of scheduled maintenance is required to maintain the warranty;

•improper maintenance;

•damage in shipment;

•abnormal use;

•removal, alteration, or obliteration of either the rating plate or the date code on the heating elements;

•operating the frypot without shortening or other liquid in the frypot;

ii

•no fryer will be warranted under the ten-year program for which a proper start-up form has not been received.

This warranty also does not cover:

•transportation or travel over 100 miles/160 km (50 miles/80 km each way), or travel over two hours;

•overtime or holiday charges;

•consequential damages (the cost of repairing or replacing other property which is damaged), loss of time, profits, use or any other incidental damages of any kind.

There are no implied warranties of merchantability or fitness for any particular use or purpose.

This warranty is applicable at the time of this printing and is subject to change.

ELECTRICAL POWER SPECIFICATIONS

		WIRE	MIN.	AWG		AMPS PER LEG
VOLTAGE	PHASE	SERVICE	SIZE	(mm2)	L1		L2		L3
208	3	3	6	(16)	39		39		39
240	3	3	6	(16)	34		34		34
480	3	3	8	(10)	17		17		17
220/380	3	4	6	(16)	21		21		21
240/415	3	4	6	(16)	20		20		21
230/400	3	4	6	(16)	21		21		21

iii

BIELA14 SERIES GEN II LOV™ ELECTRIC FRYERS

TABLE OF CONTENTS

CAUTIONARY STATEMENTS........................................................................................................................................			i
WARRANTY STATEMENT ............................................................................................................................................			ii
ELECTRICAL POWER SPECIFICATIONS ...............................................................................................................			iii
CHAPTER 1: Service Procedures
1.1	General	...........................................................................................................................................................	1-1
1.2	Replacing ....................................................................................................................................a Computer		1-1
1.3	Replacing .......................................................................................................Component Box Components		1-1
1.4	Replacing ..............................................................................................................a High-Limit Thermostat		1-3
1.5	Replacing .....................................................................................................................a Temperature Probe		1-3
1.6	Replacing .........................................................................................................................a Heating Element		1-5
1.7	Replacing ..........................................................................................................Contactor Box Components		1-7
1.8	Replacing .........................................................................................................................................a Frypot		1-8
1.9	Built-In .............................................................................................Filtration System Service Procedures		1-10
	1.9.1 ........................................................................................	Filtration System Problem Resolution	1-10
	1.9.2 ...........................................	Replacing the Filter Motor, Filter Pump and Related Components	1-11
	1.9.3 .......................................................................	Replacing the Filter Transformer or Filter Relay	1-13
1.10	ATO (Automatic ...........................................................................................Top-Off) Service Procedures		1-13
	1.10.1 ................................................................................................................	ATO Troubleshooting	1-14
	1.10.2 ...................................................................................	ATO Board Pin Positions and Harnesses	1-15
	1.10.3 ...........................	Replacing the ATO board, LON Gateway, ATO pump relay or Transformer	1-16
	1.10.4 ..........................................................................................................	Replacing the ATO Pump	1-16
1.11	MIB (Manual .....................................................................................Interface Board) Service Procedures		1-16
	1.11.1 .................................................	Manually Draining, Refilling or Filtering with the MIB Board	1-17
	1.11.2 .................................................................................................................	MIB Troubleshooting	1-18
	1.11.3 ..............................................................................................	MIB Pin Positions and Harnesses	1-20
	1.11.4 ...........................................................................................................	MIB Display Diagnostics	1-21
	1.11.5 .............................................................................................................	MIB Display Characters	1-22
	1.11.6 ...........................................................................................................	Replacing the MIB board	1-22
	1.11.7 .......................................................................................................	Control Power Reset Switch	1-22
1.12	RTI Service .......................................................................................................................................Issues		1-23
	1.12.1 ...........................................................................................................................	RTI MIB Tests	1-23
	1.12.2 ........................................................................................................................	RTI LOV Wiring	1-24
	1.12.3 ...........................................................................................................	RTI Plumbing Schematic	1-24
	1.12.4 ........................................................................................................	RTI LOV Quick Reference	1-25
1.13	AIF (Automatic ........................................................................Intermittent Filtration) Service Procedures		1-27
	1.13.1 ..................................................................................................................	AIF Troubleshooting	1-27
	1.13.2 ......................................................................	AIF Actuator Board Pin Positions and Harnesses	1-28
	1.13.3 .............................................................................................................	Replacing an AIF Board	1-29
	1.13.4 ................................................................................................................	Replacing an Actuator	1-29
1.14	M3000 Computer ..........................................................................................................Service Procedures		1-30
	1.14.1 ............................................................................................	M3000 Computer Troubleshooting	1-30
	1.14.2 .........................................................................................	M3000 Useful Codes and Passwords	1-33
	1.14.3 .............................................................................................................	Service Required Errors	1-34
	1.14.4 .........................................................................................................................	Error Log Codes	1-35
	1.14.5 .................................................................................................................................	Tech Mode	1-36
	1.14.6 ....................................................................................................	M3000 Filter Error Flowchart	1-37
	1.14.7 .....................................................................................................	M3000 Menu Summary Tree	1-38
	1.14.8 ................................................................................	M3000 Board Pin Positions and Harnesses	1-39
1.15	Loading ................................................................................................and Updating Software Procedures		1-40
1.16	Data Network ..............................................................................................................................Flowchart		1-41
1.17	Interface .................................................................................................................Board Diagnostic Chart		1-42
1.18	Probe Resistance ................................................................................................................................Chart		1-43
1.19	Wiring Diagrams..........................................................................................................................................		1-44
	1.19.1 .....................................................................................................	Component Wiring Domestic	1-44
	1.19.2 ...............................................................................................................	Component Wiring CE	1-45

iv

BIELA14 SERIES GEN II LOV™ ELECTRIC FRYERS

TABLE OF CONTENTS cont.

	1.19.3	............................................................................................................Component Wiring CSA		1-46
	1.19.4	Component Wiring Australia .....................................................................................................		1-47
	1.19.5	Contactor Box-Delta Configuration ...........................................................................................		1-48
	1.19.6	Contactor Box-WYE Configuration...........................................................................................		1-49
	1.19.7	Simplified Full-Vat Delta Wiring ..............................................................................................		1-50
	1.19.8	Simplified Dual-Vat Delta Wiring .............................................................................................		1-51
	1.19.9	Simplified Full-Vat Export WYE Wiring ..................................................................................		1-52
	1.19.10	Simplified Dual-Vat Export WYE Wiring.................................................................................		1-53
	1.19.11	Simplified LOV Wiring .............................................................................................................		1-54
CHAPTER 2: Parts List
2.1	Accessories ....................................................................................................................................................			2-1
2.2	Doors, Sides, Tilt Housings, Cap N Splash, Top Caps and Casters...............................................................			2-2
2.3	Drain System Components.............................................................................................................................			2-3
	2.3.1	Drain Tube Sections and Associated Parts...................................................................................		2-3
	2.3.2	Drain Valves and Associated Parts ..............................................................................................		2-4
2.4	Electronics and Electrical Components .........................................................................................................			2-5
	2.4.1	Component Boxes ........................................................................................................................		2-5
	2.4.2	Contactor Boxes...........................................................................................................................		2-7
	2.4.3	Heating Element Assemblies and Associated Parts .....................................................................		2-9
		2.4.3.1 Element Assemblies and Hardware..............................................................................		2-9
		2.4.3.2	Element Tube Assemblies..........................................................................................	2-11
	2.4.4	Computers ..................................................................................................................................		2-12
	2.4.5	Wiring ........................................................................................................................................		2-13
		2.4.5.1 Contactor Box Wiring Assemblies 12-Pin Dual Vat..................................................		2-13
		2.4.5.2 Contactor Box Wiring Assemblies 12-Pin Full Vat ...................................................		2-13
		2.4.5.3 Contactor Box Wiring Assemblies 6-Pin Left Element .............................................		2-14
		2.4.5.4 Contactor Box Wiring Assemblies 9-Pin Right Element ...........................................		2-14
		2.4.5.5	Main Wiring Harnesses..............................................................................................	2-15
		2.4.5.6 Component Box and Filter Pump Wiring Harnesses..................................................		2-16
		2.4.5.7 Interface Board to Controller Wiring Harness 15-Pin................................................		2-16
		2.4.5.8 M3000, MIB, AIF and ATO Wiring Harnesses .........................................................		2-17
2.5	Filtration System Components.....................................................................................................................			2-18
	2.5.1	Filtration Components..................................................................................................................		2-18
	2.5.2	Auto Intermittent Filtration Components.....................................................................................		2-20
		2.5.2.1 LOV Indicator Lights Assembly ................................................................................		2-20
		2.5.2.2 Manual Interface Board Assembly.............................................................................		2-20
		2.5.2.3 AIF Linear Actuator Board Assembly .......................................................................		2-21
		2.5.2.4 LOV PCB Board Matrix ............................................................................................		2-21
2.6	Frypot Assemblies and Associated Components .........................................................................................			2-22
2.7	Oil Return Manifolds ...................................................................................................................................			2-24
2.8	Return Valves and Associated Parts ............................................................................................................			2-24
2.9	Auto Top Off Components ..........................................................................................................................			2-25
	2.9.1	JIB Basket	....................................................................................................................................	2-25
	2.9.2	JIB Cap and Pick Up Assembly ...................................................................................................		2-25
	2.9.3	Automatic Top Off Board Assembly ...........................................................................................		2-26
	2.9.4	ATO Pump Assembly ..................................................................................................................		2-27
	2.9.5	ATO Pump Assembly Service Kit (Larger Top Off Lines) .........................................................		2-28
2.10	RTI................................................................................................................................................................			2-29
	2.10.1 RTI Manifold and Accessories.....................................................................................................			2-29
	2.10.2 RTI Dispose Waste Valve............................................................................................................			2-31
	2.10.3	RTI test Box.................................................................................................................................		2-31
2.11	Wiring Connectors, Pin Terminals and Power Cords ..................................................................................			2-32
2.12	Fasteners ......................................................................................................................................................			2-33

v

BIELA14 SERIES GEN II LOV™ ELECTRIC FRYERS CHAPTER 1: SERVICE PROCEDURES

1.1 General

Before performing any maintenance on your Frymaster fryer, disconnect the fryer from the electrical power supply.

WARNING

To ensure the safe and efficient operation of the fryer and hood, the electrical plug for the 120-volt line, which powers the hood, must be fully engaged and locked in its pin and sleeve socket.

When electrical wires are disconnected, it is recommended that they be marked in such a way as to facilitate re-assembly.

1.2 Replacing a Computer

1.Disconnect the fryer from the electrical power supply.

2.The computer bezel is held in place by tabs at the top and bottom. Slide the metal bezel up to disengage the lower tabs. Then slide the bezel down to disengage the upper tabs.

3.Remove the two screws from the upper corners of the control panel. The control panel is hinged at the bottom and will swing open from the top.

4.Unplug the wiring harnesses from the connectors on the back of the computer, marking their position for reassembly, and disconnect the grounding wires from the terminals. Remove the computer panel assembly by lifting it from the hinged slots in the control panel frame.

Ground Wire Terminal

Ground Wire Terminal

20-Pin Connector

Communication	Locator Wire
Harnesses

5.Install the replacement computer. Reinstall the control panel assembly by reversing steps 1 thru 4.

6.Setup the computer following the instructions on page 4-9 in the Installation and Operation manual. Setup MUST be performed after replacement.

7.Once setup is complete on all replaced computers, reset all control power following the instructions in section 1.11.7 on page 1-22 to readdress the new M3000 computer. Check software version and if necessary update the software. If a software update was necessary, follow the instructions to update the software in section 1.15

1.3 Replacing Component Box Components

1.Disconnect the fryer from the electrical power supply.

2.The computer bezel is held in place by tabs at the top and bottom. Slide the metal bezel up to disengage the lower tabs. Then slide the bezel down to disengage the upper tabs.

1-1

3.Remove the two screws from the upper corners of the computer and allow the computer to swing down.

4.Unplug the wiring harnesses and disconnect the grounding wires from the terminals on the back of the computer. Remove the computer assembly by lifting it from the hinge slots in the control panel frame.

5.Disconnect the wiring from the component to be replaced, being sure to make a note of where each wire was connected.

6.Dismount the component to be replaced and install the new component, being sure that any required spacers, insulation, washers, etc. are in place.

NOTE: If more room to work is required, the control panel frame assembly may be removed by removing the hex-head screws which secure it to the fryer cabinet (see illustration below). If this option is chosen, all computer assemblies must be removed per steps 1 thru 4 above. The cover plate, on the lower front of the component box, may also be removed to allow additional access if desired.

Remove these three

screws at each end.

Remove these two screws

from the center supports.

Removing the Control Panel Frame and Top Cap Assembly

7.Reconnect the wiring disconnected in step 5, referring to your notes and the wiring diagrams on the fryer door to ensure that the connections are properly made. Also, verify that no other wiring was disconnected accidentally during the replacement process.

8.Reverse steps 1 through 4 to complete the replacement and return the fryer to service.

1-2

1.4 Replacing a High-Limit Thermostat

1.Remove the filter pan and lid from the unit. Drain the frypots into an McDonald’s Shortening Disposal Unit (MSDU) or other appropriate METAL container using the computer “drain to pan option” or using the MIB board in manual mode.

DANGER

DO NOT drain more than one full frypot or two split frypots into the MSDU at one time.

2.Disconnect the fryer from the electrical power supply and reposition it to gain access to the rear of the fryer.

3.Remove the four screws from both the left and right sides of the lower back panel.

4.Locate the high-limit that is being replaced and follow the two-black wires to the 12-pin connector C-6. Note where the leads are connected prior to removing them from the connector. Unplug the 12-pin connector C-6 and using a pin-pusher push the pins of the high-limit out of the connector.

5.Carefully unscrew the high-limit thermostat to be replaced.

6.Apply Loctite™ PST 567 or equivalent sealant to the threads of the replacement and screw it securely into the frypot.

7.Insert the leads into the 12-pin connector C-6 (see illustration below). For full-vat units or the left half of a dual-vat unit (as viewed from the rear of the fryer) the leads go into positions 1 and 2 of the connector. For the right half of a dual-vat unit (as viewed from the rear of the fryer), the leads go into positions 7 and 8. In either case, polarity does not matter.

8.Reconnect the 12-pin connecting plug C-6. Use wire ties to secure any loose wires.

9.Reinstall the back panels, contactor plug guards, reposition the fryer under the exhaust hood, and reconnect it to the electrical power supply to return the fryer to service.

1.5 Replacing a Temperature Probe

1.Lift the element out of the oil.

2.Disconnect the fryer from the electrical power supply and reposition it to gain access to the rear of the fryer.

3.Remove the four screws from both sides of the lower back panel. Then remove the two screws on both the left and right sides of the back of the tilt housing. Lift the tilt housing straight up to remove from the fryer.

1-3

4.Locate the red (or yellow) and white wires of the temperature probe to be replaced. Note where the leads are connected prior to removing them from the connector. Unplug the 12-pin connector C-6 and using a pin-pusher push the pins of the temperature probe out of the connector.

5.Remove the securing probe bracket and metal tie wraps that secure the probe to the element (see illustration below). Remove the ground clip on the probe shield.

Probe

Leads

	Probe
Metal Wire Tie	Bracket

6.Gently pull on the temperature probe and grommet, pulling the wires up the rear of the fryer and through the element tube assembly.

7.Insert the replacement temperature probe (wires first) into the tube assembly ensuring that the grommet is in place. Secure the probe to the elements using the bracket which was removed in Step 5 and the metal tie wraps which were included in the replacement kit.

8.Route the probe wires out of the tube assembly following the element wires down the back of the fryer through the Heyco bushings to the 12-pin connector C-6. Secure the wires to the sheathing with wire ties. Attach the ground clip.

9.Insert the temperature probe leads into the 12-pin connector C-6 (see illustration below). For fullvat units or the right half of a dual-vat unit (as viewed from the rear of the fryer) the red (or yellow) lead goes into position 3 and the white lead into position 4 of the connector. For the left half of a dual-vat unit (as viewed from the rear of the fryer), the red (or yellow) lead goes into position 9 and the white lead into position 10. NOTE: Right and left refer to the fryer as viewed from the rear.

10.Secure any loose wires with wire ties, making sure there is no interference with the movement of the springs. Rotate the elements up and down, making sure that movement is not restricted and that the wires are not pinched.

11.Reinstall the tilt housing, back panels and contactor plug guards. Reposition the fryer under the exhaust hood and reconnect it to the electrical power supply to return the fryer to service.

1-4

1.6Replacing a Heating Element

1.Perform steps 1-5 of section 1.5, Replacing a Temperature Probe.

2.Disconnect the wire harness containing the probe wiring, where the temperature probe is attached to the element being replaced. Using a pin pusher, disconnect the probe wires from the 12-pin connector.

3.In the rear of the fryer disconnect the 6-pin connector for the left element (as viewed from the front of the fryer) or the 9-pin connector for the right element from the contactor box. Press in on the tabs on each side of the connector while pulling outward on the free end to extend the connector and release the element leads (see photo below). Pull the leads out of the connector and out of the wire sleeving.

4.Raise the element to the full up position and support the elements.

5.Remove the hex head screws and nuts that secure the element to the tube assembly and pull the element out of the frypot. NOTE: The nuts inside the tube can be held and removed using the RE element tube nut spanner, PN# 2304028. Full-vat elements consist of two dual-vat elements clamped together. For full-vat units, remove the element clamps before removing the nuts and screws that secure the element to the tube assembly.

6.If applicable, recover the probe bracket and probe from the element being replaced and install them on the replacement element. Install the replacement element in the frypot, securing it with the nuts and screws removed in Step 5 to the tube assembly. Ensure the gasket is between the tube and element assembly.

7.Route the element leads through the element tube assembly and into the wire sleeving to prevent chafing. Ensure that the wire sleeving is routed back through the Heyco bushing, keeping it clear from the lift springs (see photos next page). Also ensure that the wire sleeving extends into the tube assembly to protect the edge of the tube assembly from chafing the wires. Press the pins into the connector in accordance with the diagram on the following page, and then close the connector to lock the leads in place. NOTE: It is critical that the wires be routed through the sleeving to prevent chafing.

1-5

					Index Marker marks
					Position 1
							3	2	1
	3	2	1				6	5	4
	6	5	4				9	8	7
6L	5L	4L	3L 2L	1L	6	5	4R	3R	2	1R
					R	R			R

Full vat element wire routing

Pull the element wires through the bushings on either side of the frypot and down the back. Element wires should be routed to the right of the ATO temperature probe on the back wall of the frypot.

Dual vat element wire routing

Pull the element wires through the bushings on either side of the frypot and down the back. Element wires should be routed to the center of the frypot between the ATO temperature probes.

Element grounding and wire routing

To ground the element wires, use the hole in the frypot frame located under the bushing that the element wires pass through. Using a screw through the ground wires ring terminal, connect it to the frypot using the probe ground clip. Use a tie wrap to tie up half of the element wires after the wires are pulled through the bushing. Do not pull tie wrap tight, leave it slack at about one inch

1-6

8.Reconnect the element connector ensuring that the latches lock.

9.Insert the temperature probe leads into the 12-pin wiring harness connector (see illustration below). For full-vat units or the right half of a dual-vat unit, the red lead goes into position 3 and the white into position 4. For the left half of a dual-vat unit, the red lead goes into position 9 and the white into position 10. NOTE: Right and left refer to the fryer as viewed from the rear.

10.Reconnect the 12-pin connector of the wiring harness disconnected in Step 2.

11.Lower the element to the full down position.

12.Reinstall the tilt housing, back panels and contactor plug guard. Reposition the fryer under the exhaust hood, and reconnect it to the electrical power supply.

1.7Replacing Contactor Box Components

1.If replacing a contactor box component in boxes above the filter pan, first remove the filter pan and lid from the unit. If replacing components in fryers tht have ATO boxes, the ATO box may require removal.

2.Disconnect the fryer from the electrical power supply.

3.Remove the two screws securing the cover of the contactor box. The contactor boxes above the filter pan are accessed by sliding under the fryer. They are located to the left and right above the guide rails (see photo below). The contactor boxes for frypots not over the filter pan are accessed by opening the fryer door directly under the affected frypot.

Remove two screws to access contactor box components above the filter pan.

1-7

4.The contactors and relays are held on by threaded pin studs so that only removal of the nut is required to replace the component.

5.After performing necessary service, reverse steps 1-4 to return the fryer to operation.

Left and right views of mechanical contactor box components.

Sometimes it is necessary to remove the entire contactor box to repair. Below are the instructions for removing the far left contactor box.

1.Remove fryers from hood and remove all power to fryers.

2.Remove lower back panel.

3.Remove filter pan, lid and downspout splash shield.

4.Remove clevis clip from dispose handle at rear of fryer and let handle drop out of waste valve bracket.

5.Remove two screws holding waste valve handle at front of fryer and remove bracket and handle from fryer.

6.Remove AIF board and tuck wires out of the way of the contactor box for box removal.

7.Remove shipping brace that supports filter pump shelf brace to top of contactor box.

8.Remove contactor box cover.

9.Unplug all wiring from front and rear of contactor box.

10.Remove two screws that hold element wire shield to rear of contactor box and remove wire shield.

11.Remove two screws that support contactor box at rear of box.

12.Remove two screws that support contactor box at front of box.

13.Lift contactor box up to clear left frame rail and slide to the right far enough that the left rear corner of the pump and motor shelf protrude inside of the contactor box slightly.

14.Tip front of contactor box down and to the right slightly and then pull out from opening where filter pan lid would rest.

15.Reverse above steps for reinstallation.

1.8 Replacing a Frypot

1.Drain the frypot into the filter pan or, if replacing a frypot over the filter system, into a McDonald’s Shortening Disposal Unit (MSDU) or other appropriate METAL container. If replacing a frypot over the filter system, remove the filter pan and lid from the unit.

DANGER

DO NOT drain more than one full frypot or two split frypots into the MSDU at one time.

2.Disconnect the fryer from the electrical power supply and reposition it to gain access to both the front and rear.

1-8

3.Slide the metal bezel up to release the bottom tabs, then slide the bezel down to disengage the upper tabs.

4.Remove the two screws from the upper corners of the computers and allow them to swing down (see illustration and photo on page 1-1).

5.Unplug the wiring harnesses and ground wires from the backs of the computers. Remove the computers by lifting them from the hinge slots in the control panel frame.

6.Remove the tilt housing and back panels from the fryer. The tilt housing must be removed first in order to remove the upper back panel.

7.To remove the tilt housing, remove the hex-head screws from the rear edge of the housing. The housing can be lifted straight up and off the fryer.

8.Remove the control panel by removing the screw in the center and the nuts on both sides.

9.Loosen the component boxes by removing the screws, which secure them in the cabinet.

10.Dismount the top cap by removing the nuts at each end that secure it to the cabinetry.

11.Remove the hex head screw that secures the front of the frypot to the cabinet cross brace.

12.Remove the top-connecting strip that covers the joint with the adjacent frypot.

13.Unscrew the nut located on the front of each section of drain tube, and remove the tube assembly from the fryer.

14.Remove the actuators from the drain and return valves and disconnect the wiring.

15.Disconnect any auto filtration probes and auto top off sensors and wiring.

16.At the rear of the fryer, unplug the 12-pin connector C-6 and, using a pin pusher, disconnect the high-limit thermostat leads. Disconnect any other probe wiring.

17.Disconnect the oil return flexline(s).

18.Raise the elements to the “up” position and disconnect the element springs.

19.Remove the machine screws and nuts that secure the element tube assembly to the frypot. Carefully lift the element assembly from the frypot and secure it to the cross brace on the rear of the fryer with wire ties or tape.

20.Carefully lift the frypot from the fryer and place it upside down on a stable work surface.

21.Recover the drain valve(s), oil return flexline connection fitting(s), actuators, AIF boards and highlimit thermostat(s) from the frypot. Clean the threads and apply Loctite™ PST 567 or equivalent sealant to the threads of the recovered parts and install them in the replacement frypot.

22.Carefully lower the replacement frypot into the fryer. Reinstall the hex head screw removed in step 11 to attach the frypot to the fryer.

1-9

23.Position the element tube assembly in the frypot and reinstall the machine screws and nuts removed in step 19.

24.Reconnect the oil return flexlines to the frypot, and replace aluminum tape, if necessary, to secure heater strips to the flexlines.

25.Insert the high-limit thermostat leads disconnected in step 16 (see illustration on page 1-3 for pin positions).

26.Reconnect the actuators, ensuring the correct position of the drain and return valves.

27.Reconnect the auto filtration and auto top off probes.

28.Reinstall the drain tube assembly.

29.Reinstall the top connecting strips, top cap, tilt housing and back panels.

30.Reinstall computers in the control panel frame and reconnect the wiring harnesses and ground wires.

31.Reposition the fryer under the exhaust hood and reconnect it to the electrical power supply.

1.9 Built-in Filtration System Service Procedures

1.9.1 Filtration System Problem Resolution

One of the most common causes of filtration problems is placing the filter pad/paper on the bottom of the filter pan rather than over the filter screen.

CAUTION

Ensure that filter screen is in place prior to filter pad/paper placement and filter pump operation. Improper screen placement is the primary cause of filtration system malfunction.

Whenever the complaint is “the pump is running, but no oil is being filtered,” check the installation of the filter pad/paper, and ensure that the correct size is being used. While you are checking the filter pad/paper, verify that the O-rings on the pick-up tube of the filter pan are in good condition. A missing or worn O-ring allows the pump to take in air and decrease its efficiency.

If the pump motor overheats, the thermal overload will trip and the motor will not start until it is reset. If the pump motor does not start, press the red reset switch (button) located on the rear of the motor.

If the pump starts after resetting the thermal overload switch, then something is causing the motor to overheat. A major cause of overheating is when several frypots are filtered sequentially, overheating the pump and motor. Allow the pump motor to cool at least 30 minutes before resuming operation. Pump overheating can be caused by:

1-10

•Solidified shortening in the pan or filter lines, or

•Attempting to filter unheated oil or shortening (cold oil is more viscous, overloading the pump motor and causing it to overheat).

If the motor runs but the pump does not return oil, there is a blockage in the pump. Incorrectly sized or installed paper/pads will allow food particles and sediment to pass through the filter pan and into the pump. When sediment enters the pump, the gears bind, causing the motor to overload, again tripping the thermal overload. Shortening that has solidified in the pump will also cause it to seize, with the same result.

A pump seized by debris or hard shortening can usually be freed by manually moving the gears with a screwdriver or other instrument.

Disconnect power to the filter system, remove screwdriver to manually turn the gears.

Sediment Particle

Oil Flow

Sediment Particle

Up for reverse

Down for forward

the input plumbing from the pump, and use a

●Turning the pump gears in reverse will release a hard particle.

●Turning the pump gears forward will push softer objects and solid shortening through the pump and allow free movement of the gears.

Incorrectly sized or installed paper/pads will also allow food particles and sediment to pass through and clog the suction tube on the bottom of the filter pan. Particles large enough to block the suction tube may indicate that the crumb tray is not being used. Pan blockage can also occur if shortening is left in the pan and allowed to solidify. Blockage removal can be accomplished by forcing the item out with an auger or drain snake. Compressed air or other pressurized gases should not be used to force out the blockage.

1.9.2 Replacing the Filter Motor, Filter Pump, and Related Components

1.Remove the filter pan and lid from the unit. Drain the frypots into a McDonald’s Shortening Disposal Unit (MSDU) or other appropriate metal container.

DANGER

DO NOT drain more than one full frypot or two split frypots into the MSDU at one time.

2.Disconnect the fryer from the electrical power supply and reposition it to gain access to both the front and rear.

3.Disconnect the flexline running to the oil-return manifold at the rear of the fryer as well as the pump suction flexline at the end of the filter pan connection (see photo on the following page).

1-11

Disconnect flexlines indicated by the arrows.

4.Loosen the nut and bolt which secure the bridge to the oil-return manifold.

5.Remove the cover plate from the front of the motor and disconnect the motor wires.

6.Remove the two nuts and bolts which secure the front of the bridge to the cross brace and carefully slide the bridge rearward off the cross brace until its front end can be lowered to the floor. Undo the single nut holding it in place in back. Be careful not to let the rear of the bridge slip off the manifold at this point.

7.Get a good grip on the bridge, carefully pull it forward off the oil-return manifold, and lower the entire assembly to the floor. Once on the floor, pull the assembly out the front of the fryer.

8.When required service has been completed, reverse steps 4-7 to reinstall the bridge.

9.Reconnect the unit to the electrical power supply, and verify that the pump is functioning correctly using the MIB board in manual mode (i.e., using the fill function when engaged, the motor should start and there should be strong suction at the intake fitting and outflow at the rear flush port.)

10.When proper operation has been verified, reinstall the back panels and the filter pan and lid.

11.Reconnect it to the electrical power supply and reposition the fryer under the exhaust hood to return the fryer to service.

1.9.3 Replacing the Transformer or Filter Relay

Disconnect the fryer from the electrical power supply. Remove the left computer from the fryer to expose the interior of the left component box. The transformer and relay on the left are located as shown in the illustration on the next page. NOTE: The right component box is identical to the left except that the transformer and relay on the left side are not present. Once replaced, reconnect the power.

When replacing a filter relay in the left component box, ensure the 24VDC relay (8074482) is used. Similar Frymaster fryers use a 24VAC relay, which can lead to confusion. The 24VDC is used in the LOV™ fryer.

1-12

1.10 ATO (Automatic Top-off) Service Procedures

The automatic top-off system is activated when the oil level falls below a sensor in the rear of the frypot. The signal is sent to the ATO board to engage the return actuator to the frypot and turn on the ATO pump. The pump draws oil from the JIB (Jug In Box) through the rear return manifold into the rear of the frypot. Once the oil level has satisfied the sensor, the pump turns off and the actuator closes.

The ATO board is located inside the box, behind the JIB (see Figure 1). The power for the ATO board is supplied from the right hand component box. The power passes through the transformer inside the ATO box to the board.

Figure 1

1.10.1 ATO (Automatic Top-off) Troubleshooting

	Problem	Probable Causes
	Frypot tops off cold.	Incorrect setpoint
		A. J5 connection unplugged
	No power to ATO board	B. Fuse blown
		C. Transformer malfunction
		A. Loose wire connection
	The yellow JIB low light	B. Power in the component box is not
	won’t illuminate.	present.
		C. Failed transformer.
	One vat tops off but	A. Loose wire connection.
		B. Actuator issue
	other vats fail to top off.
	Incorrect vat tops off.	A. Wired incorrectly.
		B. Flexlines connected to wrong vat.

Corrective Action

Ensure setpoint is correct.

A.Check to ensure J5 on front of ATO board is fully locked into connector.

B.Ensure fuse below right control box is not blown and fuse on the right side of ATO box is not blown.

C.Check that proper voltage is present at transformer. See table in section 1.10.2.

A.Ensure the yellow LED is securely attached to plug J6 on the ATO board.

B.Ensure power is present in the component box.

C.If power is present in component box, check the transformer for correct voltage.

A.Ensure all wiring harnesses are securely connected to ATO board and solenoids.

B.Check return actuator to ensure actuator is functional.

A.Check wiring.

B.Switch flexlines to correct vat.

1-13

	Problem		Probable Causes		Corrective Action
				A. Ensure JIB has oil.
				B. Check to			see that fryer is heating.
					Fryer temperature must be at setpoint.
					Check probe resistance. If probe is
					bad, replace the probe.
		A. Empty JIB.		C. Ensure that the oil in the JIB is above
					70°F (21°C).
		B. Probe temperature lower than setpoint.		D. With the computer OFF, press TEMP
					button and ensure the ATO software
		C. Oil is too cold.			version appears. If not, the connection
					between the AIF and the ATO board
		D. Bad Connection			may be bad.			Ensure the 6-pin CAN
					connectors are tight between AIF (J4
		E. ATO board power loss			and J5) and ATO (J10) boards.
	Frypots won’t top off.			E. Power to the ATO board has been cut
		F.			off.	Restore power to			the board and
			Failed transformer/harness
					clear any service required errors.
				F.
		G. ATO pump failed			Ensure transformer in ATO box is
					functioning		properly.		Check	power
		H. Failed ATO board.			from transformer to ATO board.
					Ensure all harnesses are plugged
		I.	ATO lines/pump plugged		securely into place.
				G. Ensure pump				is operational.		Check
					voltage to pump. Replace the pump if
					defective.
				H. Check for proper voltages using the pin
					position chart found on page 1-15. If
					ATO found defective, replace ATO
				I.	board and clear any errors.
					Clear the lines/pump.
				A. Clear		filter		error properly.		When
					change filter pad YES/NO is displayed,
		A. Filter error exists.			do NOT press any button until the pan
					has been removed for at least thirty
	One vat doesn’t top off.
		B. Actuator, pump, loose connection, RTD			seconds.		After thirty		seconds have
			or ATO issue.		elapsed, the computer returns to OFF or
					last display.
				B. Check actuator, ATO pump, wire
					connections, RTD and ATO board.
				A. Ensure fuse on right side of ATO box is
					secure and good. If the computer
					above the ATO box is missing power
					check the fuse below the component
					box.
				B. With the computer OFF, press TEMP
	M3000 displays	A. Loose or bad fuse			button and ensure the ATO software
					version appears. If not, the connection
	SERVICE	B. Bad Connection			between the AIF and the ATO board
	REQUIRED – ATO
	BOARD	C. ATO Board power loss			may be bad.			Ensure the 6-pin CAN
					connectors are tight between AIF (J4
					and J5) and ATO (J9 or J10) boards.
				C. Power to the ATO board has been cut
					off. Ensure there is correct voltage to
					the ATO transformer. Restore power to
					the board and clear any service required
					errors.

1-14

1.10.2 ATO (Automatic Top-Off) Board Pin Positions and Harnesses

				Pin			Wire
	Connector	From/To	Harness #	#	Function	Voltage	Color
		RTI Add Solenoid		1	24VAC Ret	24VAC	Black
				2
				3
		ATO Pump Relay		4	24VAC Ret	24VAC	Black
				5
				6
				7
	J8	JIB Reset Switch	8074671	8	JIB Low Reset	16VDC	Black
		RTI Add Solenoid		9	24VAC	24VAC	Red
				10
				11
		ATO Pump Relay		12	24VAC	24VAC	Red
				13
				14
				15
		JIB Reset Switch		16	Ground	16VDC	Red
				1	24VAC Ret	24VAC	Orange
				2	24VAC		Blue
		Transformer	8074553	3
	J4 (Rear) /			4
	J5 (Front)			5	12VAC Ret	12VAC	Red
				6	12VAC		Brown
		ATO 4 & 5 Battery	8074657	7	Jumper	Ohm	Black
		Jumper		8	Jumper		Black
	J3 - Vat #3		8074655 - Vat #1	1	DV - Probe Ground		White
				2	DV - Probe		Red
	J2 - Vat #2	ATO RTD	8074654 - Vat #2			Ohm
				3	FV - Probe Ground		White
	J1 - Vat #1		8074621 - Vat #3
				4	FV - Probe		Red
	J6	Orange LED	8074555	1	16VDC	16VDC	Black
				2	16VDC Ret		Red
				1
				2
	J7			3	Ground
				4	RB7/DATA
				5	RB6/CLOCK
				1	Ground		Black
		Network Resistor		2	CAN Lo		Red
				3	CAN Hi		White
	J10	(pins 2 & 3)	8074552
		or to next ATO Board (4		4	5VDC+	5VDC	Black
		& 5 vat units)
				5	24VDC	24VDC	Red
				6	Ground		White
				1	Ground		Black
				2	CAN Lo		Red
	J9	AIF J5	8074546	3	CAN Hi		White
				4	5VDC+	5VDC	Black
				5	24VDC	24VDC	Red
				6	Ground		White

1-15

1.10.3 Replacing the ATO board, LON Gateway, ATO pump relay or Transformers

Disconnect the fryer from the electrical power supply. Locate the ATO box (see Figure 1 on page 12), behind the JIB (Jug In Box). Remove the cover to expose the transformers, relay and LON gateway (if installed) (see Figure 2). Mark and unplug any wires or harnesses. Once the LON gateway is removed the ATO board is visible (see Figure 3). Replace the defective component and reattach all wires or harnesses. Replace the cover. Once replaced, CYCLE POWER TO ENTIRE FRYER

SYSTEM. See section 1.11.7 on page 1-22 to reset Figure 2 Figure 3 control power. Check software version and if

necessary update the software. If a software update was necessary, follow the instructions to update the software in section 1.15

Press the TEMP button on one of the M3000 computers, with the computer in the OFF position, to verify software version of the ATO. If the version is not visible, the ATO may not be connected properly.

1.10.4 Replacing the ATO Pump

Disconnect the fryer from the electrical power supply. Locate the ATO pump (see Figure 4), behind the ATO box. Mark and unplug any wires or harnesses. Press up from the bottom on the quick disconnects to release the plumbing (see Figure 5). The plumbing can be pulled from the pump. Loosen the four nuts attaching the pump to the pump tray. Replace the defective component and reverse above steps. Once replaced, reconnect the power.

Figure 4

Figure 5

1.11 MIB (Manual Interface Board) Service Procedures

The MIB (Manual Interface Board) oversees and controls filtration. It receives and sends data over the CAN (Controller Area Network) to and from various sensors and computers. It activates the filtration cycle, controlling when actuators should open and close.

The MIB controller is located inside the left cabinet (see Figure 6). In normal operation a cover hides the MIB controls and only the LED display is visible. The cover is held in place with three torx screws. In normal operation, an “A” is displayed for automatic mode. The MIB control board is useful for diagnostic purposes. It allows manual operation of both the actuators and filter pump without using the M3000 computer.

Mode Display	Reset Switch
Vat Selector	Drain Switch
Switch
Manual /Auto	Return Switch
Switch
Figure 6: MIB controller cover.	Figure 7

1-16

Buttons and LED’s

Manual – This button is used to toggle between auto and manual filtration mode. A corresponding LED is lit when in Manual mode. When pressed, a message will be sent to all vats, indicating the mode has changed.

The following buttons are inoperable in auto mode:

Select - This button is used to scroll through available vats, choosing one to be manually filtered.

Drain – This button is used to open and close the drain on the vat indicated on the display. It’s embedded LED indicates the following activity:

Blink: Actuator is moving or awaiting a response from the AIF board.

Constant Illumination: Drain open. No Illumination: Drain closed.

Return – This button is used to open and close the return valve on the vat indicated on the display. When pressed and held, it also turns on and off the pump. It’s embedded LED indicates the following activity:

Blink: Actuator is moving or awaiting a response from the AIF board.

Constant Illumination: Return valve open.

No Illumination: Return valve closed.

1.11.1 Manually Draining, Refilling or Filtering using the MIB board

Press the manual/auto switch to set to manual. The LED on the manual key will illuminate and a vat number is displayed (see Figure 8).

Figure 8

Press the vat selector switch to change vats (see

Figure 9).

Figure 9

Pressing the drain or the return switch illuminates and activates the drain or return valve for the vat indicated. Pressing and holding the return switch while the return is open activates the filter motor and pump (see Figure 10).

Figure 10

Pressing the manual/auto switch will return to automatic mode.

1-17

1.11.2 MIB (Manual Interface Board) Troubleshooting

	Problem		Probable Causes		Corrective Action
		A.	Filter pan out of position.	A. Ensure filter pan is fully inserted into fryer.
				If the MIB board displays a “P” the pan is
		B.	Oil level too low.
				not fully engaged into the pan switch.
		C.	Ensure MIB board is not in
				B. Ensure the oil level is above the top oil
			manual mode.
		D.		level sensor.
			Ensure MIB cover is not
				C. Ensure MIB board is in “A” automatic
	Auto filtration won’t		damaged and pressing against
				mode.
			buttons.
	start.	E.		D. Remove and replace cover and see if
			Filter relay has failed.
				filtration will start.
		F.	AIF disable is set to YES, blue
				E. Replace filter relay with part number 807-
		G.	light doesn’t light.	4482 24VDC relay.
			Filter motor thermal switch is
				F. Set AIF disable in Level 1 to NO.
			tripped.
		H.		G. Press filter motor thermal switch.
			AIF clock enabled
				H. Ensure AIF clock is set to disabled.
	MIB display shows	An error has occurred and		See MIB display diagnostics on page 1-21 for
	something other than	displayed character indicates
				explanation.
	an “A” or vat number.	error.
	No power present at	Transformer has failed in left		Check output on the		left transformer			in left
				component box; should read 24VAC.					If not
	the MIB board	component box.
				replace transformer.
				Press and hold reset button in top right corner
	MIB will not clear			of MIB board for five seconds. The drain,
		Error remains in non-volatile		return and manual/auto LEDS will illuminate
	error.	memory.		and the MIB will reset and clear any remaining
				errors from memory. Allow 60 seconds to reset.
				If an error still exists, then another issue exists.
				A. Ensure the CAN bus system is terminated at
				BOTH ENDS (on the M3000 connector J6
				and on the ATO board connector J9) with a
				resistor equipped 6-pin connector.
				B. Unplug and reseat all wiring harnesses in
				CAN system. Resistance between pins 2
		A.	Network is not terminated	and 3 on the CAN network				connectors
				should be 120 ohms.
	MIB indicates		correctly.
				C. Check software version numbers on all
		B. Wiring harnesses are loose or
	incorrect number of		damaged.	M3000 computers and ensure all are display
	vats.			an AIF	version.	If an	AIF	version is
		C. An AIF board issue.
		D.	Locator pin issue.	missing,	the AIF	board	may	be	missing
				power or bad. Check pins 5 and on J4 and
				J5 of the affected AIF board for proper
				voltage.
				D. The locator pin in J2 of the AIF board is
				either loose or in the incorrect position. See
				the charts on page 1-55 of this manual for
				proper pin position.

1-18

Problem	Probable Causes		Corrective Action
		A. Ensure the CAN bus system is terminated at
			BOTH ENDS (on the M3000 connector J6
			and on the ATO board connector J10) with a
			resistor equipped 6-pin connector.
		B. With the computer OFF, press TEMP button
			and ensure the AIF version appears. If not,
			the 24V to the AIF boards may be missing.
			Ensure all 6-pin CAN connectors are tight
			between the M3000 (J6 and J7), MIB (J1
			and J2), AIF (J4 and J5) and ATO (J10)
			boards.
		C. With the computer OFF, press TEMP button
			and ensure the ATO version appears. If not,
			check the CAN wire harness between the
			AIF board J4 or J5 and the ATO board J9 or
			J10. The ATO fuse on the right side of the
			ATO box may be loose or blown; the 110V
			to the ATO transformer may be missing or
			the transformer bad. The J4/J5 connector
			may be loose. Is the right computer
			functioning? If not the fuse below the
			contactor box may be loose or blown.
MIB board alternating	Network error on the CAN bus	D. Check to see if MIB has 24V on pins 5 and
“E” and “vat number			6 of J2. Check to see if 24V is present on
	communication.
and side”.			pins 5 and 6 of wire harness plugging into J4
			or J5 of the first AIF board. If 24V missing,
			check the pins. Replace the harness if
			necessary.
		E. Check continuity between each color wire
			on the CAN connectors into J7 on the far
			right computer and J10 on back of the ATO
			board (black to black, white to white, and
			red to red), and ensure there is no continuity
			between different color wires (black to red,
		F.	red to white, and white to black).
			Ensure black computer locator wires are
			connected from ground to correct pin
			position (see drawing 8051734 page 1-55).
		G. Ensure all boards have the corner ground
			wire attached and tightened.
		H. The locator pin in J2 of the AIF board is
			either loose or in the incorrect position. See
			the charts on page 1-55 of this manual for
		I.	proper pin position.
			Bad MIB and/or AIF board.
		J.	Broken resistor lead. Unwrap the resistor
			leads and check ends.

1-19

1.11.3 MIB (Manual Interface Board) Pin Positions and Harnesses

	Connector	From/To	Harness #	Pin #	Function	Voltage	Wire Color
				1	Ground		Black
				2	CAN Lo		Red
	J1	M3000 J7	8074546	3	CAN Hi		White
				4
				5
				6
				1	Ground		Black
				2	CAN Lo		Red
	J2	AIF J4	8074547	3	CAN Hi		White
				4	5VDC+	5VDC	Black
				5	24VDC	24VDC	Red
				6	Ground		White
		Transformer		1	24VAC	24VAC	Black
				2	24VAC Ret		White
		Filter Relay		3	Pump Motor	24VDC	Red
				4	Pump Motor		Green
		Blue LED		5	Blue LED +	24VDC	Red
			8074649	6	Blue LED -		Black
		RTI Open Switch		7	Open Switch +		Black
	J5	RTI Closed Switch	RTI	8	Closed Switch +		Red
			8074844	9
				10
			NON-RTI
		Pan Switch		11	Pan Sw +	24VDC	Black
				12	Pan Sw -		Red
				13
				14
		RTI Open Switch		15	Ground -		White
		RTI Closed Switch		16	Ground -		Green
				1	From RTI transformer	24VAC	Black
				2	Common		White
				3	To RTI "Add Pump" Relay	24VAC	Green
				4
	J6	To RTI connection in	8074760	5
				6
		rear of fryer
				7
						24VAC –
					From RTI "Waste Tank Full	Full
					Sensor" Test Pins 2 to 8	0VAC –
				8		Not Full	Red

1-20

1.11.4 MIB (Manual Interface Board) Display Diagnostics

				DISPLAY	LED	EXPLANATION
Drain
Vat # (The vat number is followed by					On	Drain valve on vat # is open
an “L” to indicate left side of a split
vat or an “r” to indicate the right side
of a split vat or a full vat.)
Vat # (The vat number is followed by					Off	Drain valve on vat # is closed
an “L” to indicate left side of a split
vat or an “r” to indicate the right side
of a split vat or a full vat.)
Vat # (The vat number is followed by					Blink	Drain valve on vat # is opening or closing or an
an “L” to indicate left side of a split						error condition may exist.
vat or an “r” to indicate the right side
of a split vat or a full vat.)
Return
Vat # (The vat number is followed by					On	Return valve on vat # is open
an “L” to indicate left side of a split
vat or an “r” to indicate the right side
of a split vat or a full vat.)
Vat # (The vat number is followed by					Off	Return valve on vat # is closed
an “L” to indicate left side of a split
vat or an “r” to indicate the right side
of a split vat or a full vat.)
Vat # (The vat number is followed by					Blink	Return valve on vat # is opening or closing or an
an “L” to indicate left side of a split						error condition may exist
vat or an “r” to indicate the right side
of a split vat or a full vat.)
Network
N						Network error, displays for 10 seconds if no
						communications are received from the M3000
						within 10 seconds after power on or MIB reset.
Resetting
r						An “r” is displayed for ten seconds or until
						communication is received from the M3000 after a
						power on or MIB reset.
Miscellaneous
E alternating with vat # (The vat					Blink	The circuit has an issue. Ensure the actuator is
number is followed by an “L” to						plugged in. Ensure the CAN connections are all
indicate left side of a split vat or an						securely plugged into the connectors.
“r” to indicate the right side of a split
vat or a full vat.)
						Indicates the AIF temperature sensor did not detect
						a full vat during filtration.
A					Manual LED off	The system is in auto filtration mode.
Vat # (The vat number is followed by					Manual LED on	The system is in manual mode.
an “L” to indicate left side of a split
vat or an “r” to indicate the right side
of a split vat or a full vat.)
P						This will only be displayed in auto filtration mode.
						Filter pan is improperly seated. Any auto filtration
						messages received at this time are ignored.

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1.11.5 MIB (Manual Interface Board) Display Characters

A – Auto Mode – Auto Filtration enabled.

E – Drain or return valve is not in desired state. The display will alternate between E and the corresponding vat number. Ensure the actuator is plugged in and an error does not exist.

– Three horizontal lines indicate the AIF temperature sensor did not detect that the vat was full during auto filtration.

n – Network Error - An “n” displays for 10 seconds if no communication is received from the cooking computer within ten seconds after a power on or MIB reset.

P – Pan Switch – Filter pan is improperly seated. Filtration is suspended.

r – Reset Switch - Reset the vat closes all of the valves on the vat. If displayed for some time, there is probably a problem with the board.

1 – 5 – Numbers which correspond to the vats with either an “L” indicating the left side of a split vat or “r” indicating the right side of a split vat or a full vat. These numbers are displayed in manual mode.

1.11.6 Replacing the MIB Board

Disconnect the fryer from the electrical power supply. Remove the torx screws from the MIB cover, exposing the MIB board (see Figure 11). Removing the screw at top center lets the MIB board hinge down. Carefully remove the plugs on the rear of the board (see Figure 12). Replace with a new MIB board and reverse steps to reassemble. Once replaced, CYCLE POWER TO ENTIRE FRYER SYSTEM. See next section to reset control power. Check software version # and if necessary update the software. If a software update was necessary, follow the instructions to update the software on in section 1.15 ensuring the MIB reset button is pressed and held for five seconds at the end of the update to update the MIB.

Figure 11

Figure 12

1.11.7 Control Power Reset Switch
The control power reset switch is a momentary
rocker switch located behind the control box
(see Figures 13 and 14) above the JIB that
resets all power to all the computers and boards
in the fryer. It is necessary to reset all power
after replacing any computer or board. Press
and hold the switch for at least ten seconds
when resetting the control power to ensure
power has sufficiently drained from boards.	Figure 13

Figure 14 (Rear view of Control Box)

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