Vulcan 1TR45A Service Manual

SERVICE MANUAL

VK and TR GAS FRYERS W/Wo KleenScreen PLUS

VK Series TR Series

- NOTICE -

This Manual is prepared for the use of trained Vulcan Service Technicians and should not be used by those not properly qualified.

This manual is not intended to be all encompassing. If you have not attended a Vulcan Service School for this product, you should read, in its entirety, the repair procedure you wish to perform to determine if you have the necessary tools, instruments and skills required to perform the procedure. Procedures for which you do not have the necessary tools, instruments and skills should be performed by a trained Vulcan Service Technician.

The reproduction, transfer, sale or other use of this Manual, without the express written consent of Vulcan, is prohibited.

This manual has been provided to you by ITW Food Equipment Group LLC ("ITW FEG") without charge and remains the property of ITW FEG, and by accepting this manual you agree that you will return it to ITW FEG promptly upon its request for such return at any time in the future.

A product of Vulcan-Hart 3600 North Point Blvd Baltimore, MD 21222

F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS

TABLE OF CONTENTS

GENERAL .................................................................................................. 4

INTRODUCTION ....................................................................................... 4

MODEL AND ML NUMBERS ............................................................................ 4

MODELS, FEATURES AND OPTIONS .................................................................. 5

KLEENSCREEN PLUS FILTRATION SYSTEM: (KSP) ................................................... 5

SERIAL NUMBER LOCATION .......................................................................... 6

CONTROL PANELS .................................................................................... 6

INSTALLATION ........................................................................................ 7

OPERATION ........................................................................................... 7

CLEANING ............................................................................................. 7

TOOLS ................................................................................................. 7

SPECIFICATIONS ...................................................................................... 7

REMOVAL AND REPLACEMENT OF PARTS ............................................................... 9

COVERS AND PANELS ................................................................................ 9

CONTROL PANEL (SOLID STATE AND COMPUTER) .............................................. 9

BASKET LIFT COVERS ............................................................................ 9

ANALOG CONTROL .................................................................................. 10

INTERFACE CONTROL - D AND C SERIES ........................................................... 11

POWER SWITCH - D AND C SERIES ................................................................. 11

TEMPERATURE PROBE .............................................................................. 11

HIGH LIMIT THERMOSTAT ........................................................................... 12

POWER SUPPLY BOX ................................................................................ 13

POWER SUPPLY BOX COMPONENTS BEFORE 12/1/12 .............................................. 14

IGNITION MODULE ............................................................................... 14

BLOWER CONTROL BOARD ..................................................................... 14

TIME DELAY TIMERS ............................................................................. 14

BLOWER RELAY ................................................................................. 14

FILTER RELAYS (24 VAC AND 120 VAC) ......................................................... 14

120 VOLT TRANSFORMER ....................................................................... 15

POWER SUPPLY BOX COMPONENTS AFTER 12/1/12 ............................................... 15

120 VOLT TRANSFORMER ....................................................................... 15

CONTROL BOARD ................................................................................ 16

FILTER RELAYS .................................................................................. 16

BURNER ASSEMBLY ................................................................................. 16

GAS VALVE .......................................................................................... 17

BASKET LIFT TUBE .................................................................................. 17

BASKET LIFT MOTOR ................................................................................ 18

BASKET LIFT CAM SWITCH .......................................................................... 19

BASKET LIFT CAM ................................................................................... 19

FILL SOLENOID VALVE (KSP) ........................................................................ 19

FILTER HOSE SWITCH (KSP) ........................................................................ 20

FILTER PUMP AND MOTOR (KLEENSCREEN FRYERS ONLY) ....................................... 20

DRAIN VALVE INTERLOCK SWITCH (DVI) ............................................................ 21

FRY TANK ............................................................................................ 22

SERVICE PROCEDURES AND ADJUSTMENTS ........................................................... 24

ELECTRIC CONNECTIONS ........................................................................... 24

HARMONIC TONE .................................................................................... 24

TEMPERATURE PROBE FAULT CODES .............................................................. 24

TEMPERATURE PROBE TEST ....................................................................... 24

COOKING CONTROL CALIBRATION .................................................................. 25

FLAME SENSE CURRENT CHECK PRIOR TO 12/1/12 ................................................ 25

FLAME SENSE CURRENT CHECK AFTER 12/1/12 .................................................... 26

ELECTRONIC IGNITION CONTROL ................................................................... 26

IGNITION MODULE LOCKOUT .................................................................... 26

ELECTRONIC IGNITION SYSTEM ................................................................ 27

F45474 (0413) Page 2 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS

MODULATING GAS VALVE ADJUSTMENTS .......................................................... 27

BASKET LIFT ARM ADJUSTMENT .................................................................... 27

SOLID STATE CONTROL ............................................................................. 28

OPERATION ...................................................................................... 28

SERVICE PROGRAMMING ....................................................................... 28

ERROR MESSAGES .............................................................................. 28

ENTER SERVICE MODE .......................................................................... 28

ALARM MESSAGES .............................................................................. 30

COMPUTER CONTROL ............................................................................... 31

OPERATION ...................................................................................... 31

SERVICE PROGRAMMING ....................................................................... 31

ENTER SERVICE SETTING MODE ................................................................ 31

ALARM MESSAGES .............................................................................. 35

DISPLAY, LED AND KEYPAD TEST - COMPUTER CONTROL ......................................... 36

BLOWER CONTROL BOARD SETTINGS .............................................................. 36

HIGH/LOW FIRE TIMER SETTING .................................................................... 36

AIR FILTER ........................................................................................... 37

SPARK GAP SETTING BEFORE 12/1/12 .............................................................. 37

SPARK GAP SETTING AFTER 12/1/12 ................................................................ 38

ELECTRICAL OPERATION ................................................................................ 39

COMPONENT FUNCTION - FRYER CONTROLS ...................................................... 39

COMPONENT FUNCTION - KLEENSCREEN FILTER CONTROLS ..................................... 40

COMPONENT LOCATION ............................................................................. 40

SEQUENCE OF OPERATION - A SERIES - AFTER 12/1/12 ............................................ 41

SEQUENCE OF OPERATION D AND C SERIES ....................................................... 42

SCHEMATIC DIAGRAMS ............................................................................. 44

WIRING DIAGRAMS .................................................................................. 48

TROUBLESHOOTING ..................................................................................... 53

TROUBLESHOOTING ................................................................................. 53

Page 3 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - GENERAL

GENERAL

INTRODUCTION

This service manual covers the specific service information related to the models listed in the chart below. The VK and TR series gas fryers come equipped with solid state analog (A), solid state digital (D) or programmable computer (C) controls. This manual covers single floor model fryers, battery fryers as well as fryers with the KleenScreen PLUS® Filtration System. All pictures and illustrations will be of a 2VK45 unless otherwise noted.

All of the information, illustrations and specifications contained in this manual are based on the latest product information available at the time of printing.

MODEL AND ML NUMBERS

MODEL ML # MODEL ML # MODEL ML #

1VK45A 136885 1VK45D 136886 1VK45C 136887

1VK65A 136888 1VK65D 136889 1VK65C 136890

1VK85A 136891 1VK85D 136892 1VK85C 136893

1VK45AF 136684 1VK45DF 136895 1VK45CF 136896

1VK65AF 136897 1VK65DF 136898 1VK65CF 136899

1VK85AF 136900 1VK85DF 136901 1VK85CF 136902

2VK45AF 136903 2VK45DF 136904 2VK45CF 136905

2VK65AF 136906 2VK65DF 136907 2VK65CF 136908

2VK85AF 136909 2VK85DF 136910 2VK85CF 136911

3VK45AF 136912 3VK45DF 136913 3VK45CF 136914

3VK65AF 136915 3VK65DF 136916 3VK65CF 136917

3VK85AF 136918 3VK85DF 136919 3VK85CF 136920

4VK45AF 136921 4VK45DF 136922 4VK45CF 136923

4VK65AF 136935 4VK65DF 136941 4VK65CF 136937

4VK85AF 136938 4VK85DF 136939 4VK85CF 136940

1TR45A 136946 3TR45CF 136959 3TR65CF 136972

1TR45AF 136947 4TR45CF 136960 1TR85A 136973

2TR45AF 136948 1TR65A 136961 1TR85AF 136974

3TR45AF 136949 1TR65AF 136962 2TR85AF 136975

4TR45AF 136950 2TR65AF 136963 3TR85AF 136976

1TR45D 136951 3TR65AF 136964 1TR85D 136977

1TR45DF 136952 1TR65D 136965 1TR85DF 136978

2TR45DF 136953 1TR65DF 136966 2TR85DF 136979

3TR45DF 136954 2TR65DF 136967 3TR85DF 136980

4TR45DF 136955 3TR65DF 136968 1TR85C 136981

F45474 (0413) Page 4 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - GENERAL

MODEL ML # MODEL ML # MODEL ML #

1TR45C 136956 1TR65C 136969 1TR85CF 136982

1TR45CF 136957 1TR65CF 136970 2TR85CF 136983

2TR45CF 136958 2TR65CF 136971 3TR85CF 136984

4TR65AF 136985 4TR65DF 136986 4TR65CF 136987

4TR85AF 136988 4TR85DF 136989 4TR85CF 136990

MODELS, FEATURES AND OPTIONS

FEATURES OPTIONS

MODEL

1VK/TR45A /D / C / AF / DF / CF

1VK/TR65A / D / C AF / DF / CF

1VK/TR85A / D / C / AF / DF / CF

2VK/TR45AF / DF / CF

3VK/TR45AF / DF / CF

4VK/TR45AF / DF / CF

2VK/TR65AF / DF / CF

3VK/TR65AF / DF / CF

4VK/TR65AF / DF / CF

2VK/TR85AF / DF / CF

3VKTR85AF / DF / CF 63.0" 85 - 90 90,000 SINGLE OR DUAL

4VK/TR85AF / DF / CF

FRYER WIDTH

(INCHES)

15.5" 45 - 50 70,000 SINGLE OR DUAL

21.0" 65 - 70 80,000 SINGLE OR DUAL

21.0" 85 - 90 90,000 SINGLE OR DUAL

31.0" 45 - 50 70,000 SINGLE OR DUAL

46.5" 45 - 50 70,000 SINGLE OR DUAL

62.0" 45 - 50 70,000 SINGLE OR DUAL

42.0" 65 - 70 80,000 SINGLE OR DUAL

63.0" 65 - 70 80,000 SINGLE OR DUAL

84.0" 65 - 70 80,000 SINGLE OR DUAL

42.0" 85 - 90 90,000 SINGLE OR DUAL

84.0" 85 - 90 90,000 SINGLE OR DUAL

KLEENSCREEN PLUS FILTRATION

SYSTEM: (KSP)

The KleenScreen PLUS® filtration system is integrated into the VK Series fryer battery. The filter is housed in a pullout drawer assembly at the base of

SHORTENING

CAPACITY PER

FRYER (POUNDS)

the fryer. The filtering components in the drawer include a stainless steel filter tank, a stainless steel mesh filter screen with a stainless steel insert, a suction tube and a knurled knob that holds the assembly together. In addition, the KSP comes with a second filtering system; a microfilteration fabric envelope (3), a dedicated stainless steel insert and stainless steel clip that holds the assembly together.

Page 5 of 54 F45474 (0413)

BTU/HR/SECTION

AUTOMATIC

BASKET LIFTS

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - GENERAL

With the filter drawer closed, a self-sealing oil return line provides the path to return the filtered shortening back into the fry tank.

This system is designed to provide a through and easy method to filter the shortening. Some of the benefits include:

• Self-contained system eliminating the use of external filter equipment

• Paperless filtering system

• Easy to clean and low maintenance

• Extends the life of the shortening

KSP fryer batteries are standard in single and up to a maximum of a four fryer battery in most cases. Batteries are made up of only fryers, no warming stations.

SERIAL NUMBER LOCATION

Serial number plate is attached to door of fryer.

Fig. 1

Fig. 2

This serial number plate is attached to bottom rear support panel. This plate is pop riveted to support panel and should not come off.

CONTROL PANELS

This serial number plate supplies more than the serial number. It also contains electric requirements, gas requirements, clearances and agency approvals. This plate is pop riveted to the door and should not be removed. However the door sometimes comes off and can become misplaced. If that happens there is a second serial number location on fryer.

F45474 (0413) Page 6 of 54

ANALOG CONTROL

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - GENERAL

• VOM with A.C. current tester (any quality VOM with a sensitivity of at least 20,000 ohms per volt can be used).

SPECIAL

• Temperature tester (thermocouple type)

• Manometer.

• Combustion Analyzer

SOLID STATE CONTROL

COMPUTER CONTROL

• Set of Metric Hex Wrenches (must include a 2 mm wrench)

• Set of jewelers screwdrivers

• Field service grounding kit P/N TL- 84919.

• Burndy pin extraction tool RX2025 GE1; Newark Electronics Catalog Number 16F6666. Used for removing pin terminals on Burndy connectors.

• Thumb Drive (part number 443444) (Customer to supply program for uploading menu items)

SPECIFICATIONS

ELECTRICAL:

• 120VAC supply.

• Filter motor/pump

• Basket lift motors

• Transformer

• 24VAC transformer

• Fryer controls

USB Port

INSTALLATION

Refer to the Instruction Manual for detailed installation instructions.

OPERATION

Refer to the Instruction Manual for specific operating instructions.

CLEANING

Refer to the Instruction Manual for specific cleaning instructions.

TOOLS

STANDARD

• Standard set of hand tools.

Page 7 of 54 F45474 (0413)

• Basket lift relays

• Filter relay

MANIFOLD GAS PRESSURES (per fryer section)

• Natural - 0.08" W.C.

• Propane - 0.08" W.C.

BUILDING SUPPLY PRESSURE (MAX)

• Natural Single Fryer - 6" W.C.

Natural Battery Fryer - 8" W.C.

• Propane Single and Battery Fryers - 11" W.C.

NOTE: Natural and propane gases listed above are maximum supply pressures. On fryers built before 12/1/12 a separate gas regulator must be used for pressures exceeding maximum (not supplied with

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - GENERAL

unit). On fryers built after 12/1/12 an incoming gas pressure regulator is installed on the fryer.

VKINPUT BTU RATING

VK SERIES BTU/HR/SECTION

VK45A, VK45AF, VK45D, VK45DF, VK45C, VK45CF

VK65A, VK65AF, VK65D, VK65DF, VK65C, VK65CF

VK85A, VK85AF, VK85D, VK85DF, VK85C, VK85CF

TR INPUT BTU RATING

TR SERIES BTU/HR/SECTION

TR45A, TR45AF, TR45D, TR45DF, TR45C, TR45CF

TR65A, TR65AF, TR65D, TR65DF, TR65C, TR65CF

TR85A, TR85AF, TR85D, TR85DF, TR85C, VK85CF

70,000

80,000

90,000

70,000

80,000

90,000

F45474 (0413) Page 8 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

REMOVAL AND REPLACEMENT OF PARTS

COVERS AND PANELS

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

Control Panel (Solid State and Computer)

1. Remove screws at top of control panel and rotate panel downwards.

Fig. 7

2. Disconnect wiring harness then lift panel off.

NOTE: The cooking control, control box, interface board and wiring harness are now accessible.

3. Reverse procedure to install.

Basket Lift Covers

Shut off the gas before servicing the

unit.

All gas joints disturbed during

servicing must be checked for leaks. Check with a soap and water solution (bubbles). Do not use an open flame.

NOTE: This procedure applies to fryers with automatic basket lift option only.

1. Remove basket assembly lift arms from support rods.

Fig. 8

A. Lift upper cover over support rods and place

cover to the side.

3. Remove screws securing lower cover to motor mounting base.

Fig. 9

4. Reverse procedure to install.

2. Remove screws securing upper cover to flue wrap.

Page 9 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

ANALOG CONTROL

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

1. Open the door.

2. Unplug wiring harnesses from bottom of control box.

3. Remove control box from frame of fryer.

4. Loosen set screw in control knob and remove from shaft.

Fig. 11

Fig. 10

5. Remove control box cover.

6. Disconnect lead wires as necessary to remove control.

Fig. 12

7. Remove screws from front of control panel and

F45474 (0413) Page 10 of 54

remove control.

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

INTERFACE CONTROL - D and C

SERIES

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

1. Remove CONTROL PANEL.

2. Note lead wire locations and remove wiring.

3. Remove screws securing control to fryer and remove.

POWER SWITCH - D and C SERIES

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

NOTE: This procedure is for solid state and computer controls. Power switch for analog controls is part of the analog control box.

1. Open fryer door to access power switch.

Fig. 13

4. Reverse procedure to install and check for proper operation.

Fig. 14

2. Unplug power switch connector.

3. Reach behind power switch and press tabs on both sides of power switch to remove switch.

NOTE: Power switch is removed from front of the panel.

4. Reverse procedure to install new power switch.

5. Check operation of machine.

TEMPERATURE PROBE

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

1. Drain shortening from fryer tank.

Page 11 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

2. Unplug temperature probe lead wire connector.

4. Install new probe making sure that probe is installed into bracket shown.

HIGH LIMIT THERMOSTAT

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

Do not sharply bend or kink the high limit

capillary tube or damage may occur.

1. Drain shortening from fryer tank.

2. Disconnect lead wires from high limit thermostat.

3. Remove screws securing high limit to mounting bracket.

Fig. 15

NOTE: This picture shows the probes with the burner

removed.

3. Loosen compression nut and remove probe from fryer.

Fig. 17

4. Remove the capillary tube retaining and packing nuts.

Fig. 16

F45474 (0413) Page 12 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

POWER SUPPLY BOX

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

All gas joints disturbed during

servicing must be checked for leaks. Check with a soap and water solution (bubbles). Do not use an open flame.

NOTE: The power supply box must be removed to access the following components: ignition module, all 24 volt relays, blower control board, both time delay timers, 120 volt transformer.

1. Access rear of fryer and remove screw holding power supply box to support bracket. The box will

Fig. 18

lower to clear bracket.

NOTE: This picture shows the probes with the burner removed.

5. Slide high limit probe out of fry tank.

Fig. 19

Fig. 20

2. Access front of fryer to slide power supply box toward rear of fryer to disconnect from front support bracket.

6. Reverse procedure to install and check for proper operation.

Page 13 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

Fig. 23

5. Reverse procedure to install.

POWER SUPPLY BOX

COMPONENTS BEFORE 12/1/12

Fig. 21

3. Unplug all connecters from power supply box and remove box from under fryer.

4. Remove cover to access power supply box components.

NOTE: The ignition module, blower control board and the time delay timers will not be available to the field any longer. If any one of these items fail, replace power supply box. However, the filter relays and the transformer are still available and can be replaced in the field.

Ignition Module

Replace with updated Power Supply Box Assembly.

Blower Control Board

Replace with updated Power Supply Box Assembly.

Time Delay Timers

Replace with updated Power Supply Box Assembly.

Blower Relay

Replace with updated Power Supply Box Assembly.

Filter Relays (24 VAC and 120 VAC)

1. Remove POWER SUPPLY BOX.

2. Note location of all wiring to the relay and remove wiring.

3. Remove screw and remove relay from box.

Fig. 22

F45474 (0413) Page 14 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

Fig. 24

4. Reverse procedure to install new relay.

5. Reinstall power supply box and check operation.

120 Volt Transformer

1. Remove POWER SUPPLY BOX.

2. Note location of wiring on 120 volt transformer and remove wiring.

3. Remove screws and remove transformer from the box.

Fig. 25

4. Reverse procedure to install new transformer.

5. Reinstall power supply box and check operation.

POWER SUPPLY BOX

COMPONENTS AFTER 12/1/12

NOTE: Power supply boxes built after 12/1/12 have

different components in them. The 24 volt electronic ignition relay, blower control board, ignition module and both time delay relays are replaced by a single control board.

NOTE: The new ignition module will not have a separate flame sense rod and wire. Ignition module will rectify flame through high voltage wire.

120 Volt Transformer

1. Remove POWER SUPPLY BOX.

2. Note location of all wiring and remove wiring from transformer.

3. Remove four screws and remove transformer from box.

Page 15 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

5. Reinstall power supply box and check operation.

Filter Relays

1. Remove POWER SUPPLY BOX.

2. Note location of wiring to the relays and remove wiring.

Fig. 26

4. Reverse the procedure to install new transformer.

5. Reinstall power supply box and check operation.

Control Board

1. Remove POWER SUPPLY BOX.

2. Note location of wiring to relay control board and remove wiring.

Fig. 28

3. Remove screws and remove from box.

4. Reverse the procedure to install new relays.

5. Reinstall power supply box and check operation.

BURNER ASSEMBLY

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

All gas joints disturbed during

servicing must be checked for leaks. Check with a soap and water solution (bubbles). Do not use an open flame.

1. Remove gas line from gas valve.

2. Remove electric plug connector from gas valve.

3. Unbolt high limit thermostat clamp from transfer

Fig. 27

3. Remove screws and remove from box.

4. Reverse the procedure to install new relay control board.

F45474 (0413) Page 16 of 54

tube.

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

5. Reverse procedure to reinstall burner.

GAS VALVE

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

All gas joints disturbed during

servicing must be checked for leaks. Check with a soap and water solution (bubbles). Do not use an open flame.

The gas valve is considered part of the burner assembly. If the gas valve fails and needs to be replaced, you must order a complete blower/gas valve assembly (burner). The reason for this is every blower/ gas valve assembly (burner) is set up at the factory to

Fig. 29

4. Remove bolts and remove burner from fryer.

operate at the most efficient level possible. This set up procedure cannot be duplicated in the field. If you feel that the gas valve is not set up correctly or not operating correctly, call product service and they will help solve the problem.

BASKET LIFT TUBE

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

1. Remove

2. Remove nut securing lift bar to lift tube.

3. Remove screws securing lift tube bracket to fryer then remove bracket and lift tube.

BASKET LIFT COVERS.

Fig. 30

Page 17 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

Fig. 32

4. Remove screws securing basket lift motor to cam bracket, then remove motor from bracket.

Fig. 31

4. Reverse procedure to install.

BASKET LIFT MOTOR

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

1. Remove

2. Disconnect lead wires from cam switch and basket lift motor.

3. Loosen set screws securing crank arm assembly to basket lift motor shaft.

BASKET LIFT TUBE.

Fig. 33

5. Reverse procedure to install and check for proper operation.

NOTE: After reinstalling motor keep all wire leads clear from moving parts.

F45474 (0413) Page 18 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

BASKET LIFT CAM SWITCH

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

1. Remove BASKET LIFT TUBE.

2. Disconnect lead wires from cam switch.

3. Remove screws securing cam switch to cam bracket.

BASKET LIFT CAM

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

1. Remove BASKET LIFT COVERS.

2. Remove nut securing lift bar to cam assembly.

3. Loosen cam set screw.

4. Remove screws securing cam to the crank arm assembly.

Fig. 34

4. Reverse procedure to install.

Fig. 35

5. Reverse procedure to install.

FILL SOLENOID VALVE (KSP)

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

1. Remove filter tank from fryer.

2. Access fill solenoid valve.

3. Loosen union at rear of valve,

4. Remove bolts securing valve and remove valve from the fryer.

Page 19 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

Fig. 37

Fig. 36

5. Reverse procedure to reinstall valve.

FILTER HOSE SWITCH (KSP)

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

1. Open fryer door to access filter hose switch.

2. Unplug lead wire connections.

3. Press tabs on rear of switch and push out front of fry cabinet.

4. Reverse procedure to install new switch.

FILTER PUMP AND MOTOR

(KLEENSCREEN FRYERS ONLY)

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

1. Access rear of fryer.

2. Remove four bolts holding serial plate bracket, and carefully lower bracket.

3. Disconnect both hoses from filter pump.

F45474 (0413) Page 20 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

Fig. 38

4. Disconnect electric connections to filter pump motor.

5. Unbolt filter pump motor from fryer frame.

6. Carefully remove filter pump assembly through rear of fryer.

7. Reverse procedure to reinstall filter pump assembly.

DRAIN VALVE INTERLOCK

SWITCH (DVI)

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

1. Open fryer section door.

2. Locate drain valve switch

3. Remove nut holding drain valve handle and remove handle.

Fig. 39

NOTE: Make sure drain handle is in closed position.

If fry tank is full of shortening, carefully remove drain handle. Make sure you do not turn handle to open position. Doing so will allow shortening to drain on floor or you.

4. Remove drain valve interlock switch bracket from valve.

5. Remove screws holding the drain valve interlock switch on bracket and take switch from bracket.

Page 21 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

A. Remove hose clamp from rubber boot.

B. Remove drain piping from drain valve.

Fig. 40

6. Unplug drain valve interlock switch from wiring harness and remove switch from fryer.

7. Reverse procedure to install and check for proper operation.

FRY TANK

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

All gas joints disturbed during

servicing must be checked for leaks. Check with a soap and water solution (bubbles). Do not use an open flame.

Fig. 41

5. Remove drain valve from fry tank.

1. Remove BURNER ASSEMBLY.

2. Remove both HIGH LIMIT THERMOSTAT and TEMPERATURE [ROBE.

3. Remove DRAIN VALVE INTERLOCK SWITCH.

4. Remove drain assembly from drain valve.

F45474 (0413) Page 22 of 54

6. Loosen and disconnect the oil return line, if

Fig. 42

equipped with filter system.

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - REMOVAL AND REPLACEMENT OF PARTS

Fig. 45

A. Cover plate is glued to tank and will have to

be pried off.

Fig. 43

7. Remove fry tank bolt down bracket.

Fig. 44

8. Remove fry tank cover plate.

B. Order a replacement plate prior to replacing

fry tank.

9. If basket lifts are installed, they will have to be removed from rear of tank.

10. Remove tank from fryer.

Fig. 46

11. Reverse order of this procedure to install new fry tank.

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VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

SERVICE PROCEDURES AND ADJUSTMENTS

Certain procedures in this section require electrical test or measurements while

power is applied to the machine. Exercise extreme caution at all times. If test points are not easily accessible, disconnect power and follow lockout / tagout procedures, attach test equipment and reapply power to test.

ELECTRIC CONNECTIONS

The VK series fryers are supplied with a 120Volt cord and three prong plug. If local electrical codes require that these fryers be plugged into a Ground Fault Interrupter or GFI. You must use GFI part number

913053. Other GFI outlets may not have the correct tolerance for the spark to ground ignition system employed with the VK series fryers.

HARMONIC TONE

Harmonic Tone (hum) at First Start

At first start, fryer will begin heating in low fire. There will be a harmonic tone that is NORMAL to hear. As fryer continues to heat, harmonic tone will dissipate and become less noticeable. When fryer reaches 135°F (end of melt cycle), fryer will heat on high fire and blower speed will increase.

TEMPERATURE PROBE FAULT

CODES

CONTROL TYPE FAULT

An open will display PROBE

COMPUTER

OPEN and a short or high temperature condition will display PROBE SHORT.

TEMPERATURE PROBE TEST

To Check:

1. Turn power switch off.

2. Disconnect the temperature probe plug behind the burner.

The temperature probe is used for both the solid state control and the computer control. The probe is an RTD (resistance temperature detector) of the thermistor type. As temperature increases the resistance value decreases.

Probe Fault

If a temperature probe fault or high temperature condition occurs, a fault message will be displayed and the electronic alarm will sound continuously. The heat demand and basket lift outputs are de-activated. If a cooking cycle is in process (timer active), it will be cancelled and the key pad disabled.

This will continue until the fault clears, power is cycled or problem resolved.

CONTROL TYPE FAULT

An open will display Prob and

SOLID STATE

F45474 (0413) Page 24 of 54

a short or high temperature condition will display HI.

3. Test the probe using a VOM to measure

Fig. 47

resistance. Connect the meter leads to the wires removed in step 2.

A. If the measured resistance values are within

the allowable range, the probe is functioning properly. Reverse procedure to install.

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

B. If the measured resistance values are

outside the allowable range, install a replacement probe and check for proper operation.

TEMPERATURE (°F) RESISTANCE (Ω)

77 90,000 - 110,000

350 604 - 836

415

460

High temperature alarm level for the cooking

controls

Shorted probe equivalent temperature

302 - 369

191 - 233

COOKING CONTROL

CALIBRATION

NOTE: Verify condition of temperature probe as

outlined under TEMPERATURE PROBE TEST before proceeding.

1. Check the level of shortening in fry tank. The level must be between the MIN & MAX fill lines before proceeding.

2. Allow shortening to cool below 300°F.

3. Place a thermocouple in the geometric center of the fry tank one inch below the shortening surface.

4. Set the cooking control to 350°F and turn the fryer on.

5. Monitor the heat indicator lamp. When cooking control is calling for heat, lamp will be on. If cooking control is satisfied, lamp will be off.

Analog Control - Heat light is to right of zero on temperature scale.

Solid State Control - Decimal point of first character indicates heat on when lit.

Computer Control - Two LED lamps on the Oil Temp key that indicate heat on.

NOTE: Agitate the shortening, to eliminate any cold zones.

A. Allow cooking control to cycle three times to

stabilize shortening temperature.

6. Calculate the average temperature by adding the temperature reading when the heat lamp goes out to the temperature reading when the heat lamp comes on & divide this answer by 2.

[ Temp. (Lamp off) + Temp. (lamp on) ] ÷ 2 = Average Temp. Example: 360° + 340° ÷ 2 = 350°F.

The average temperature should be 350°F (± 5°F).

A. If the average temperature reading is within

tolerance, cooking control is properly calibrated.

B. If the average temperature reading is out of

tolerance, perform the following:

1) Analog Control - Remove knob and turn adjustment screw counterclockwise to increase temperature and clockwise to decrease temperature.

2) Solid State Control - Adjust OFFSET TEMPERATURE.

3) Computer Control - Adjust OFFSET TEMPERATURE.

7. Repeat the average temperature calculation for up to three attempts. Allow the cooking control to cycle at least two times between adjustments before performing the calculation.

8. If calibration is unsuccessful, the cooking control may be malfunctioning and cannot be adjusted properly. Install a replacement cooking control and check calibration.

FLAME SENSE CURRENT CHECK

PRIOR TO 12/1/12

Certain procedures in this section

require electrical test or measurements while power is applied to the machine. Exercise extreme caution at all times. If test points are not easily accessible, disconnect power and follow lockout / tagout procedures, attach test equipment and reapply power to the test.

1. Remove cover of power supply box.

2. Locate red flame sense wire.

B. Record meter reading from thermocouple

when the cooking control cycles off and on for at least two complete heating cycles.

Page 25 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

2. Locate two pins (FC- and FC+) on side of the ignition/ blower control board.

Fig. 48

3. Remove the red flame sense wire.

4. Place one Microamp meter lead on the red wire.

5. Place the other meter lead on the terminal you removed the red flame sense wire from.

6. Power up the fryer and have it call for heat.

7. You should receive a minimum Microamp reading of at least 1.0 microamp.

8. If the reading is greater or equal to the value given, then the flame sense current is within tolerance.

9. If the reading is lower than the value given, then troubleshoot the flame sense circuit.

NOTE: If the reading is below 0.0 microamps, reverse the meter leads and take another reading.

FLAME SENSE CURRENT CHECK

AFTER 12/1/12

Certain procedures in this section

1. Remove cover from power supply box.

Fig. 49

3. Set your multi meter for Microamps and place meter leads on two pins.

4. Restart the fryer and read the microamps as the fryer is sparking.

NOTE: The only time you will be able to read the microamps is when the fryer is sparking. When the spark quits the reading will go away. You may only have several seconds to obtain this reading.

5. The flame sense current must be at least 2.0 to

3.0 microamps, and the reading must be steady.

6. If reading is below 1.3 microamp or unsteady, check pilot flame and electrical connections.

ELECTRONIC IGNITION CONTROL

NOTE: This procedure applies to all fryers.

Ignition Module Lockout

This happens when fryer is unable to detect flame sense. The electrode will try to ignite one time. When

F45474 (0413) Page 26 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

flame has not been detected within 5 seconds red light on ignition module will blink.

Fig. 50

"A" style controller: Red light will blink and blower will continue to run until power has been turned off.

"C" and "D" style controllers: Red light will continue to blink, but blower will shut down after a number of seconds and a loud "beep" will continue to sound until fryer is powered down.

Electronic Ignition System

MODULATING GAS VALVE

ADJUSTMENTS

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

Shut off the gas before servicing the

unit.

All gas joints disturbed during

servicing must be checked for leaks. Check with a soap and water solution (bubbles). Do not use an open flame.

The modulating gas valve is adjusted at the factory and requires no adjustments. If the modulating gas valve needs to be replaced, the new gas valve from the parts depot will be adjusted property and will only need to have the gas pressure verified coming into the gas valve.

All fryers built after 12/1/12 will have gas regulators installed on the incoming gas line. The gas pressure on the new gas vales will not have to be checked.

Certain procedures in

this section require electrical test or measurements while power is applied to the machine. Exercise extreme caution at all times. If test points are not easily accessible, disconnect power and follow lockout / tagout procedures, attach test equipment and reapply power to test.

1. Access burner electrode.

2. Remove ignition wire from burner electrode.

3. Fasten metal end of ignition wire about ¼ away from a grounded metal surface on fryer.

4. Try to light the burner.

5. You should be able to see a spark. If no spark, check ignition module in power supply box.

BASKET LIFT ARM ADJUSTMENT

1. With shortening at room temperature, verify the shortening level is between MIN & MAX lines in fry tank. Add shortening as needed.

NOTE: Shortening will expand when heated. Do not fill the fry tank past the MAX line.

2. Turn power switch on and set temperature to 350°F. Allow the shortening to reach set temperature.

3. Check basket lift operation.

A. If necessary, adjust as outlined below.

4. When basket is in the up position, the bottom of the basket should be out of the shortening. When basket is in the down position, the bottom of the basket should clear the crumb screen and the product should be submerged.

A. To adjust, remove basket arm from lift shaft,

loosen stop nut and turn height adjustment bolt to raise or lower basket arm as required. Both baskets should be same height.

B. Tighten stop nut when complete.

NOTE: If adjustment is to low, when the basket is lowered, it will disengage from basket arm

Page 27 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

Error Messages

Refer to ALARM MESSAGES at end of section.

Enter Service Mode NOTE: Control heat demand output signal is off and

heat/ignition status input signal is ignored.

1. Cycle power switch. When the program version number is displayed, press PROGRAM key to enter Service Mode.

A. Beeper chirps on each successful keypress.

2. To scroll through each of the program items, press PROGRAM key and release.

A. To reset all service mode program items to

factory default, press and hold TEMP key for 2 seconds.

3. To exit Service Mode and save selections, press PROGRAM key and hold for 1 second. Fryer returns to normal operation and display shows

Fig. 51

the current heating mode based on shortening temperature:

SOLID STATE CONTROL

• MELT L (liquid; default) or Melt S (solid) if

Operation

Use service information in this section when servicing a fryer with a solid state control. Refer to instruction manual for specific operating instructions.

NOTE: In operator programming mode, control can be reset to it's default values by pressing the TEMP key for 2 seconds.

shortening temperature is below 135°F.

• HEATING if no melt is selected and

shortening temperature is below set point.

• Fryer set point temperature if actual

shortening temperature is within set point range.

Service Programming

Solid state control Service Mode is used to perform system diagnostic tests or edit programs that affect the fryers operation.

Control Programming

PROGRAM

ITEM

KEY SEQUENCE

DISPLAY

Brand Name Press left or right basket to select display name. Hobart or Vulcan

Temperature Display Mode

Press left or right basket to select temperature unit of measure. DEG F OR C

Press left or right basket to select fryer type. Boil or Filter Function

Boil key overlay = stand alone fryer.

BOIL OR FILTER

Filter key overlay = filtering system fryer batteries.

ELECTRIC or GAS or Gas* (Star)

OFS 00F (always in °F)

Fryer Type

Calibration Offset

Press left or right basket to select fryer energy source (electric or gas heat)

Gas Star must be selected for VK and TR Fryers

Press left basket to increase or right basket to decrease offset temperature

(range -20 to 20)

F45474 (0413) Page 28 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

Control Programming

PROGRAM

ITEM

KEY SEQUENCE

DISPLAY

Press left basket to increase or right basket to decrease cooking cycle lockout

Low Cook Temp Lockout

temperature (range 30 to 50F)

NOTE: Prevents cook timers from starting if actual shortening temperature is

LOCKO 40 (always in °F)

not within the lockout temperature setting.

NOTE: The program items listed below are for verifying settings only. Do not change the default setting for these program items.

PROGRAM ITEM

KEY SEQUENCE

DISPLAY

Press left basket to increase or right basket to decrease instant on time. Instant On

Time (heat)

NOTE: At the start of a cook cycle, the heat output will be activated for this time

INSTO 20

(range 0 to 20 seconds).

Press left basket to increase or right basket to decrease melt cycle time.

MLTG 1 16 (Liq)

(Melt ON)

Gas Fryers

08 (Sol)

Adjustment Range:

MLTG

Melt ON - 0 to 20 seconds; Melt OFF - 0 to 30 seconds.

0 18 (Liq)

(Melt OFF)

Melt Cycle On/ Off Times

26 (Sol)

MLTE 1 04 (Liq)

(Melt ON)

Electric Fryers

02 (Sol)

Adjustment Range:

MLTE

Melt ON - 0 to 2 seconds; Melt OFF - 10 to 30 seconds.

0 11 (liq)

(Melt OFF)

13 (Sol)

Proportional Offset

Proportional Gain

Derivative Gain

Integral Gain

Integral Limit

Press left basket to increase or press right basket to decrease proportional

offset (range 0 to 30).

Press left basket to increase or right basket to decrease proportional gain

(range 0 to 30).

Press left basket to increase or right basket to decrease derivative gain (range

0 to 30).

press left basket to increase or right basket to decrease integral gain (range 0

to 30).

Press left basket to increase or right basket to decrease integral limit (range 0

to 255).

POFST 02

PGAIN 24

DGAIN 20

IGAIN 08

ILIM 255

Page 29 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

Control Programming

PROGRAM

ITEM

Default value shown in bold type.

Temperature will change in one degree increments, accelerating if the

KEY SEQUENCE

button is held.

NOTES

Time will change in one second increments, accelerating if the button

is held.

Gas* and Gas Star are the same value. The Solid State Display cannot

show an asterick(*).

Display Test

1. Cycle power switch. When FRYERS is displayed, press PROGRAM key.

A. Display shows DSP TEST.

2. To exit test, press and hold the PROGRAM key for one second.

Alarm Messages

Alarms take precedence over any other controller mode or function (except drain valve function).

B. Press PROGRAM key again to light all the

display segments in the first character.

DISPLAY

C. Continue pressing PROGRAM key until the

display segments for all eight characters are tested.

ALARMS DESCRIPTION

If an open probe is detected, the heat demand (heat on) and basket lift outputs are disabled. Any cooking in progress is cancelled and all operator buttons are disabled.

OPEN PROBE

the display alternates OPEN PROBE and the electronic alarm will sound continuously.

NOTE: A temperature of 460°F is an open probe equivalent.

If a shorted probe is detected, the heat demand (heat on) and basket lift outputs are disabled. Any cooking in progress is cancelled and all operator buttons are disabled.

SHORTED PROBE

The display alternates SHORTED PROBE and the electronic alarm will sound continuously.

NOTE: A temperature of 460°F or greater is a shorted probe equivalent.

If the temperature is greater than or equal to 415°F, the heat demand (heat on) and basket lift outputs are disabled. Any cooking in progress is cancelled and all operator

HI TEMP

buttons are disabled. The display alternates HIGH TEMP and the electronic alarm will sound continuously. Normal fryer operation resumes when the temperature drops below the high temperature alarm level.

If the ignition status input to the control is not active (24VAC = active), the display

IGNITION STATUS (gas models only)

shows NO PILOT. If the input remains inactive for greater than 90 seconds, the display will alternate IGNITION LOCKOUT, the electronic alarm will sound continuously, and the controller will be disabled (all outputs including heat demand off) until power is cycled.

F45474 (0413) Page 30 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

ALARMS DESCRIPTION

When drain valve is opened, the DVI switch contacts open, and the 24VAC input to the control is removed. The heat demand (heat on) and basket lift outputs are disabled. Any cooking in progress is cancelled and all operator buttons are disabled. The display will show DRAINING.

Press FILTER key and hold for 3 seconds to begin filtering (pump on). Control is

DRAIN VALVE INTERLOCK (DVI) Filtering System Fryer Batteries (Filter Key)

signaled that filtering has started.

When the drain valve is closed, the DVI switch contacts close, and the 24VAC input to the controller is restored. The heat demand (heat on) and all operator buttons will remain disabled and the display will show FILL VAT.

To resume operation, allow the tank to fill with shortening between the MIN and MAX lines. Press FILTER key to turn the pump motor off. Control is signaled that filtering has stopped and the tank is full, Display will ask VAT FULL HIT TEMP. Press TEMP key after confirming the shortening is at the proper level and to resume heating.

DRAIN VALVE INTERLOCK (DVI) Stand Alone Fryers (Boil Key)

PROGRAM LOST RECHECK

IGNITION STATUS

GAS Selected incorrectly under service settings - type

To resume operation, allow the tank to fill with shortening between the MIN and MAX lines. Press TEMP key. Display will ask VAT FULL HIT TEMP. Press TEMP key a second time after confirming the shortening is at the proper level and to resume heating.

When the program has detected errors in the data that is stored in the controls non volatile memory (EEPROM), the control will automatically reload the factory default settings. Display will alternate the alarm message until program mode is entered then exited or power is cycled to control.

After 20 seconds in normal operation mode. IGNITION LOCKOUT will be shown on the display and the alarm will sound continuously.

Enter SERVICE SETTINGS and select GAS* as the type.

COMPUTER CONTROL

Operation

For operating instructions and programming, refer to OPERATOR MANUAL and computer controls programing start guide.

Service Programming

The computer controls service settings mode is used to select the settings that affect fryer operation and to perform fryer diagnostic tests.

Enter Service Setting Mode

Fig. 52

Page 31 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

Fig. 54

NOTE: The controls heat demand output signal is off

and the heat/ignition status input signal is ignored if the fryer is in cook mode or idling.

1. Turn power switch on and when the program revision is displayed, press PROGRAM to enter Service Setting Mode.

A. The SERVICE SETTINGS are shown on the

left and right display screens.

2. Verify the settings shown on the display screen are correct for the fryer being serviced.

3. To change a service setting.

A. Press the desired product number key (1

thru 6) on the control panel that corresponds to the service setting number on the display screen.

1) Beeper chirps on each successful key press and all LED's are off. When a service item is selected, only the keys required to change the setting are active.

B. Press toggle key to alternate between

available selections, or use product number keys where indicated to enter a value. The current selection will be "blinking".

C. Press PROGRAM key to save the selection

- "Blinking" stops.

D. Access the other service settings as

necessary.

4. To enter DIAGNOSTICS mode, press product number key 7 on the control panel.

Fig. 55

Fig. 56

A. Press the desired product number key (1, 2,

3, 4, & 6) on the control panel that corresponds to the diagnostic test number on the display screen to check the output signal to the component.

1) Press the same product number key again to turn the output off.

NOTE: Item 5 (drain) displays the real time status and does not require pressing the corresponding product number key. Item 3 (heater) - The output signal will be active for 3 seconds (heat on) then turn off.

B. For item 6 DISPLAY: - change the setting as

desired.

1) Press product number key 6 to access the display screen adjustment settings.

2) Press the left or right arrow key on the PROGRAMMING MENU SELECTION screen to select the screen to adjust. Display shows "THIS LCD SELECTED".

F45474 (0413) Page 32 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

c. CONTRAST - Press the L key on

the keypad to lower the contrast or press the R key on the keypad to raise the contrast.

4) Press PROGRAM key to return to DIAGNOSTICS MODE.

5. To exit SERVICE SETTINGS MODE and return to normal operation, keypress PROGRAM key.

A. Display reverts to product menu items.

Fig. 57

3) To adjust the selected screen:

a. BACKLIGHT - Press toggle key to

turn display backlight ON or OFF.

b. PIXEL MODE - Press product key

number 1 two times to change display from white background with black letters to black background with white letters. Press the key again to change it back to original setting.

SERVICE

SETTINGS

KEY SEQUENCE

DISPLAY

ITEM

FLASHES

DESCRIPTION

Press 1 to change brand name.

1. Brand

2. Celsius

3. Mode

4. Type

Press toggle key to select HOBART or VULCAN.

Press PROGRAM Key to save the selection.

Press 2 to change temperature scale.

Press toggle key to select NO or YES.

Press PROGRAM Key to save the selection.

Press 3 to change fryer mode.

Press toggle key to select BOIL or FILTER.

Press PROGRAM Key to save the selection.

Press 4 to change energy source.

Press toggle key to select ELECTRIC, GAS or GAS*.

NOTE: VK and TR Gas Fryers MUST be set to GAS*.

Press PROGRAM Key to save the selection.

VULCAN Brand name at power on

Temperature °F/°C

No = Fahrenheit

Yes = Celsius

Boil or Filter

Boil

Boil key = Stand alone fryer

Filter key = Filter system battery

ELECTRIC Electric or Gas

Page 33 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

SERVICE

SETTINGS

Temp Offset

6. Baskets

7. Diagnostics

1.) L Basket

2.) R Basket

3.) Heater

DISPLAY

KEY SEQUENCE

ITEM

FLASHES

DESCRIPTION

Press 5 to change offset temperature.

Press toggle key to change offset value to (+) or (-) (positive or negative).

Enter the offset value using the number keys on the keypad.

NOTE: Offsets the actual oil temp sensed by the

OFF 00 F (always in °F)

Degrees Fahrenheit and positive zero are the

defaults. temperature probe during calibration. Enter a positive number to decrease the actual oil temperature; or a negative number to increase the oil temperature.

Press PROGRAM Key to save the selection.

Press 6 to change the number of basket lifts.

Press toggle key to select 0, 1, or 2.

2 Display shows 0, 1 or 2

Press PROGRAM Key to save the selection.

Press 7 to enter diagnostic mode (outputs for heat, basket lifts and cooking timers remain off).

___

DIAGNOSTICS

(shown on display screen)

Press 1 to toggle left basket lift output to lower the lift. DOWN Lowers basket

Press 1 again to raise the lift. UP Raises basket

Press 2 to toggle right basket lift output to lower the lift.

DOWN Lowers basket

Press 2 again to raise the lift. UP Raises basket

Press 3 to turn heat output ON for 3 seconds only. OIL TEMPERATURE LED's light with heat demand.

On then

OFF

Gas burner or heating

elements turn on then off.

4.) Filter

5.) Drain

Press 4 to turn filter output ON. ON Pump motor on

NOTE: Filtering system fryer batteries only

Press 4 again to turn output OFF. OFF Pump motor off

Display indicates the position of the drain valve. (DVI switch input to control) (keypress not required).

CLOSED

Manually change valve position to test, and display will update.

Drain valve open OPEN

Drain valve closed CLOSED

F45474 (0413) Page 34 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

SERVICE

SETTINGS

KEY SEQUENCE

Press 6 to adjust the left and right display screen settings. Refer to LCD display screen picture under ENTER SERVICE SETTINGS MODE.

Press the left or right arrow key on control panel to select the screen to adjust.

To adjust the selected screen:

• BACKLIGHT - Press toggle key to turn display

6.) Display

backlight ON or OFF.

• PIXEL MODE - Press product key number 1 two

times to change display from white background with black letters to black background with white letters. Press the key again to change it back to original setting.

• CONTRAST - Press the L key on the keypad to

lower the contrast or press the R key on the keypad to raise the contrast.

Exit Diagnostic and Service Mode

NOTES:

Press PROGRAM Key to exit the selected DIAGNOSTICS test and return to Service Settings Mode.

Default values shown in bold.

Alarm Messages

The alarms take precedence over any other controller mode or function (outputs off, active timers canceled).

ALARMS DESCRIPTION

If a temperature probe fault occurs, the alarm sounds continuously and the display shows PROBE on the left display and either OPEN or SHORT on the right display. This alarm state will remain until the fault clears or power switch

PROBE FAULT

is cycled.

DISPLAY

ITEM

FLASHES

DESCRIPTION

N/A THIS LCD SELECTED

SERVICE SETTINGS

N/A

(shown on display screen)

IGNITION STATUS

GAS -Selected under service settings - Type.

IGNITION STATUS

GAS Selected incorrectly under service settings - Type.

• OPEN - Probe detects temperature less than 40°F.

• SHORTED - Probe detects temperature greater than 460°F.

If the ignition status input is not present, both displays show IGNITION LOCKOUT. If the input comes back in less than 8 seconds, the displays will revert to normal operation.

If the input remains inactive for more than 90 seconds, IGNITION LOCKOUT will be shown on the left display and CHECK GAS SUPPLY will be shown right display, and the alarm will sound continuously. This alarm state will remain until power switch is cycled.

After 20 seconds in normal operation mode, IGNITION LOCKOUT will be shown on the left display and CHECK GAS SUPPLY will be shown right display, and the alarm will sound continuously.

Enter SERVICE SETTINGS and select GAS* as the type

Page 35 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

DISPLAY, LED AND KEYPAD TEST

- COMPUTER CONTROL

1. Press and hold the 5 key while turning power on to Initiate test. Release the 5 key during display of software revision level and all LED<s and display segments should light.

2. For each number key (1-9, & 0) pressed, the corresponding value is displayed in each character position on the left and right display.

(i.e.5 key shows 55555555 55555555).

NOTE: Beeper chirp’s for as long as key is held.

3. For each function key pressed, the following values are displayed in each character position on the left and right display:

L (left) L Cook

R (right) R Cook

TEMPERATURE Temp

PROGRAM (V) Program

TOGGLE Toggle

BOIL

FILTER D (Kleenscreen fryers)

LEFT TIME < (Left Arrow)

RIGHT TIME > (R Arrow)

4. Turn power off to exit test.

B (single floor model fryers)

NOTE: For fryers built after 12/1/2012, there are no adjustments for blower settings, The Ignition/Blower control board is preprogrammed. If a fryer built before 12/1/12 has been converted to the new Ignition/ Blower control board, there will be no adjustments.

HIGH/LOW FIRE TIMER SETTING

Fig. 58

BLOWER CONTROL BOARD

SETTINGS

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

NOTE: This procedure for fryers built before 12/1/2012.

Whenever you have problems with the blower motor make sure the following adjustments are correct.

1. SW2: Set the SW2 potentiometer to the number 2 setting.

2. SW4: Set the SW4 potentiometer to the number 4 setting.

3. Dip switches: Set the fourth switch (the one closest to the potentiometers) to the up position.

F45474 (0413) Page 36 of 54

NOTE: This procedure is for fryers built before 12/1/2012

Whenever you have problems with high or low firing of the burner make sure the following adjustments are correct.

NOTE: To set the fire timers use a jeweler's flathead screwdriver.

NOTE: The timer closest to the ignition module is the low fire timer, and the one closest to the bottom is the high fire timer.

1. Low fire timer: Set the low fire timer for 2

2. High fire timer: Set the high fire timer for 8

Disconnect the

electrical power to the machine and follow lockout / tagout procedures.

seconds.

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

Fig. 60

SPARK GAP SETTING BEFORE

12/1/12

Fig. 59

NOTE: For fryers built after 12/1/12, the fire timers

are replaced by a Ignition/Blower control board. The high and low fire time settings are programmed into the control board. If a fryer built before 12/1/12 has been converted to the new Ignition/Blower control board, there will be no adjustments.

AIR FILTER

A dirty air filter will prevent the correct amount of air intake for the blower. The results are poor combustion resulting in the fryer "puffing" severely.

To clean the air filter, remove the filter by pulling it off. The clamp is only hand tightened. Clean air filter in dishwasher or in sink with hot soapy water. Make sure air filter is completely dry prior to reinstalling, making sure that the filter is snug onto the blower intake. Make sure NOT to tighten the clamp more than hand tight.

Fig. 61

The spark igniter rod should be set between 1/8" and 3/16" away from the mesh burner. This gap will allow the igniter to produce the optimal spark required to ignite the burner.

Page 37 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

2. The spark igniter rod should be set with a gap between the rod and the burner mesh of 1/16 of an inch.

insert picture here

3. There should be a gap of 1/8 of an inch between the igniter rod and the ground rod.

Fig. 62

If the spark igniter rod is not adjusted correctly the gas could build up in the burner assembly and cause a delayed ignition of the burner. The resulting "puffing" could result in damage to the fryer.

NOTE: If the power supply box has been converted to the new controls, the spark igniter rod should be replaced with the new style spark rod.

SPARK GAP SETTING AFTER

12/1/12

1. Insure the spark igniter is installed properly on the burner.

Fig. 64

4. This igniter sparks to the ground rod. To insure we have a proper ground, we put a wire on the ground rod terminal and secure it to the burner.

Fig. 65

Fig. 63

F45474 (0413) Page 38 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

ELECTRICAL OPERATION

COMPONENT FUNCTION - FRYER CONTROLS

Ignitor/ Ground (After

12/1/12) ..............

Ignition/Blower control board (After 12/1/12) ...

Analog (A), Solid State (D) or Computer Cooking Control (C) ...

Control Interface Board (D and C fryers

only) .................

Transformer .......... Supplies 24VAC to the cooking control, also supplies power to ignition control module.

Power Switch ........ Supplies power to control circuit for fryer operation and filtering.

Modulating Gas Valve ...Allows the gas flow to modulate between low and high flame when gas valve coil is

High Limit Thermostat ...Prevents the shortening from reaching temperatures over 450°F (auto reset @ 415°F).

Ignites the gas burner and senses the presence of a flame. The flame presence generates a micro-amp flame sense current that is rectified to the ignition control module.

Provides the output signal interface from the cooking control to operate the burner blower motor in low or high speeds, controls and monitors gas burner ignition. Monitors the presence of a flame and supplies an ignition status input signal to the cooking control,

Monitors and evaluates input signals to the control: Activates heat output signal to maintain shortening temperature; counts product cook time(s) and signals the electronic alarm at the end of a cooking cycle; activates the left and right lift output signal to operate the basket lifts(s); and activates filter output signal to power the fill solenoid valve.

NOTE: By utilizing the same wiring harness connections D and C controls are interchangeable between fryers.

Provides the output signal interface from the cooking control to regulate gas heating, basket lift operation and fill solenoid valve operation. The board components consist of a heat control Triac and K1, K2 & K3 N.O. relays.

Transformer is energized when power switch is turned on.

energized.

Serves as a backup to the cooking control’s high temperature alarm setting of 415°F (normal operation resumes when temperature falls below this point).

Temperature Probe ... Senses temperature of shortening. Converts the temperature into a resistance valve

which is monitored by the cooking control. The probe is an RTD (resistance temperature detector) of the Thermistor type. As temperature increases the resistance value decreases.

Drain Valve Interlock

Switch (DVI) ..........

Ignition Control Module (Before

12/1/12) ..............

Ignitor/Flame Sense

(Before 12/1/12) ......

Burner Time Delay Relays (Before 12/1/12)

........................

Blower Relay (Before

12/1/12) ..............

Blower Control Board

(Before 12/1/12) ......

A magnetic reed switch mounted on the manual drain valve that supplies a drain valve position signal (open/closed) to the cooking control. When drain valve is open, the drain interlock input to the control is removed (magnetic reed switch contacts open). This prevents gas burners from coming on with the fry tank empty.

Controls and monitors gas burner ignition. Monitors the presence of a flame and supplies an ignition status input signal to the cooking control.

Ignites the gas burner and senses the presence of a flame. The flame presence generates a micro-amp flame sense current that is rectified to the ignition control module.

These relays are used in conjunction with the burner either in high or low fire settings.

When the relay coil is energized, it supplies voltage to operate the burner blower motor.

Provides the output signal interface from the cooking control to operate the burner blower motor in low or high speeds. The board components consist of 4 dip switches, SW2 and SW4.

Page 39 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

COMPONENT FUNCTION - KLEENSCREEN FILTER CONTROLS

Fill Solenoid Valve ... When energized by filter key, the solenoid valve opens to allow the flow of shortening

thru filtering system.

Pump Motor .......... Operates pump to circulate shortening through filtering system.

Drain Valve Interlock

Switch (DVI) ..........

R1 Pump Motor Relay ... When 24VAC relay coil is energized by filter key, supplies 120VAC to pump motor; and

R2 Fill Relay ......... When 24VAC relay coil is energized by filter key, supplies 24VAC to the fill solenoid valve

A magnetic reed switch mounted on the mechanical discard valve that closes when discard valve handle is extended to discard the shortening. Prevents R2 filter relay N.C. contacts from suppling power to the fill solenoid valve when filter key is pressed.

fill solenoid valve (thru R2 fill relay N.C. contacts.

to open the valve and allow shortening to flow thru filter system.

COMPONENT LOCATION

Fig. 66

Fig. 67

Fig. 68

F45474 (0413) Page 40 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

E. Shortening at proper level in fry tank and

below last set point temperature used.

F. Manual drain valve closed (drain valve

interlock switch N.O. is closed).

G. High limit thermostat closed.

2. Turn power switch on.

A. 24VAC transformer energized.

3. Analog control is powered 24VAC.

4. Start switch is closed (momentary).

Fig. 69

Fig. 70

SEQUENCE OF OPERATION - A

SERIES - AFTER 12/1/12

Refer to the schematic diagrams for Analog Control operation.

5. If shortening temp is below 135°F then melt cycle will operate.

6. Temperature goes above 135°F and control calls for heat.

A. 3 sec prepurge.

B. Spark sent to igniter.

• 7 sec trial for ignition. If flame not detected after 8 sec, Lockout.

NOTE: System remains locked out until the power switch is cycled to reset system and restart trial for ignition cycle. (Wait 5 minutes for gas to dissipate)

• 2 sec after flame detected, burner blower motor in low speed and low fire initiated.

C. Once burner flame is present, burner blower

motor goes from low speed to high speed.

D. Ignition module provides ignition status

input signal to control.

7. Cooking control evaluates input signals from: Ignition status, drain valve interlock, and temperature probe.

NOTE: If the Solid/ Liquid switch is set to Solid, the control will cycle the heat on and off in short intervals until the shortening is heated to 135°F.

Melt Cycle times

Liquid 8 sec on and 18 sec off

Solid 16 sec on and 18 sec off

1. Conditions:

A. Fryer connected to correct supply voltage

and properly grounded.

B. Incoming gas supply is on and manual gas

valve turned on.

C. Power switch to the fryer section in the off

position.

D. Solid/Liquid switch set to correct position.

Page 41 of 54 F45474 (0413)

A. Ignited burner heats shortening in fry tank.

NOTE: As long as the ignition module senses a flame, the internal main voltage (MV) contacts (N.O.) on the ignition module remain closed, and the gas valve stays on.

8. Shortening reaches set temperature.

A. Cooking control de-activates heat output

(24VAC).

1) Gas valve coil de-energized and valve closes.

2) Gas flow stops and burner goes out.

9. When fryer calls for heat again, ignition sequence will begin at step 6A.

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

SEQUENCE OF OPERATION D AND

C SERIES

Refer to SCHEMATIC AI3495 for Cooking Control operation.

NOTE: If using solid shortening, the control should be programmed to use the melt cycle. In the melt cycle, the control will cycle the heat on/off in short intervals. This will gradually heat and liquify the shortening until it reaches 135°F. Melt cycle default times in seconds are:

Melt Cycle Times

Liquid L = 16 on, 18 off

Solid S = 8 on, 26 off (default for gas)

No Melt 0 = 100% on

On solid state controls only, CY (cycle) is displayed before the shortening letter designation and zero represents no melt.

The control then resumes normal operation as described in this sequence.

1. Conditions.

A. Fryer connected to correct supply voltage

and properly grounded.

B. Gas supply and gas combination valves are

on.

C. Power switch to the fryer section in the off

position.

D. Shortening at proper level in fry tank and

below last set point temperature.

E. Desired shortening selected. (Solid/Liquid)

F. Cooking control is setup properly and ready

to use.

G. Manual drain valve closed (drain valve

interlock switch N.O. is closed).

H. High limit thermostat closed.

2. Turn power switch on.

A. Power to terminal 5 (COM) on left and right

basket relays.

B. 24VAC transformer energized.

3. Cooking control powers on, initializes and performs a diagnostic self check.

NOTE: If cooking control passes diagnostic self check, the output signals are turned on and operation sequence continues. If cooking control does not pass diagnostic self check, the control displays an error

message for the problem, disables keypad and sounds the electronic alarm continuously. Refer to SOLID STATE CONTROL ALARMS OR COMPUTER CONTROL ALARMS.

4. 24VAC to P5 of interface board.

5. Control calls for heat.

A. 25 VDC to P3 on interface board.

B. Triac on interface board supplies 24VAC to

ignition module to P6 on interface board.

6. If shortening temp is below 135°F then melt cycle will operate.

7. Temperature goes above 135°F and control calls for heat.

A. 3 sec prepurge.

B. Spark sent to igniters.

• 7 sec trial for ignition. If flame not detected after 8 sec, Lockout.

NOTE: System remains locked out until the power switch is cycled to reset system and restart trial for ignition cycle. (Wait 5 minutes for gas to dissipate)

• 2 sec after flame detected, burner blower motor in low speed and low fire initiated.

C. Once burner flame is present, burner blower

motor goes from low speed to high speed.

D. Ignition module provides ignition status

input signal to control.

8. Cooking control evaluates input signals from: Ignition status, drain valve interlock, and temperature probe.

A. Ignited burner heats shortening in fry tank.

NOTE: As long as the ignition module senses a flame, the internal main voltage (MV) contacts (N.O.) on the ignition module remain closed, and the gas valve stays on.

9. Shortening reaches set temperature.

A. Triac on Interface Board de-energized.

1) Gas valve coil de-energized and valve closes.

2) Gas flow stops and burner goes out.

10. When fryer calls for heat again, ignition sequence will begin at step 5A.

11. If fryer is left idle, the ignition sequence changes.

F45474 (0413) Page 42 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

12. If shortening is allowed to cool over a long period of time, burner will operate on low heat to maintain shortening temperature near operating temperature.

NOTE: When the fryer shortening is cooling, the controller observes how fast or slow the temperature drops. If the temperature drops slowly the controller will operate the burner with the blower motor in low speed allowing the burner to operate at a lower BTU output to save our customers money by using less gas. The fryer will still reach set temperature, just at a slower pace. If the temperature drops rapidly, the controller will operate the burner blower motor in low speed until the flame is rectified, then it will change to the high speed for the rest of the call for heat

Drawer Filter System

Refer to SCHEMATIC AI3496 for Drawer Filter System operation. Refer to VK OPERATOR MANUAL and DRAWER FILTRATION SYSTEM SUPPLEMENT for specific instructions on filtering.

NOTE: The discard valve handle is connected to a mechanical valve and magnetic reed switch assembly to route the flow of shortening in the filtering system and supply power to the pump motor.

1. Conditions.

A. Fryer connected to correct supply voltage

and is properly grounded .

B. Power switch to fryer section to filter turned

on.

C. The cooking control should be setup

properly and ready to use.

D. Cooking control temperature setting

between 300°F (minimum) and 350°F (maximum).

NOTE: Shortening should not be filtered outside of this temperature range. At lower temperatures the shortening is thicker which may increase filtering time and place a greater load on the pump. At higher shortening temperatures, oil seal life is decreased.

E. Filter drawer assembly installed properly.

F. Drain valve handle (white) retracted.

1) Drain valve interlock switch N.O. contacts open. Mechanical drain valve closed.

2. Allow shortening to cycle between 300°F and 350°F for approximately 10 minutes.

NOTE: If using solid shortening, once it has melted, stir the shortening to eliminate any sold shortening in cold zone of the fry tank.

3. Open drain valve to fryer section in need of filtering and drain shortening into filter tank.

A. Display indicates draining.

B. Drain valve interlock switch contacts open

and position of drain valve is indicated to cooking control.

NOTE: If using solid shortening, allow hot shortening to stand in filter tank for approximately 6 minutes prior to filtering.

4. Press filter key on the control panel and hold for 3 seconds. The filter output signal (24VAC) at pin E1-9 is turned on and the interface board K3 relay coil is energized at pins 11 & 4.

A. K3 N.O. contacts close and 24VAC is output

from the interface board at pin 12.

B. R1 pump motor relay coil (24VAC) is

energized and both sets of N.O. contacts close.

NOTE: Jumper wire number 24 connects one set of R1 N.O. contacts to R2 COM.

1) Fill solenoid valve is energized (120VAC) thru R2 fill relay N.C. contacts and valve opens.

2) Pump motor is energized (120VAC) and pump circulates shortening through filtering system.

5. When filtering is completed, close the drain valve and allow the fry tank to refill.

A. Display indicates fill tank.

B. Drain valve interlock contacts close and the

position of the drain valve is indicated to the cooking control.

6. When all filtered shortening is returned to the fry tank, press filter key on the control panel.

A. Power is removed from fill solenoid valve

and pump motor.

B. Display indicates tank full hit temp. If

shortening is at proper level in fry tank, press and hold temp key until shortening temperature is displayed. Filtering cycle is complete and fryer resumes normal operation.

NOTE: If using solid shortening, when all filtered shortening is returned to fry tank and pump motor is off, open filter drawer approximately one inch. Allow remaining shortening in line to drain into filter tank to prevent possible clogging after shortening cools and solidifies. Close filter drawer when complete.

Page 43 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

SCHEMATIC DIAGRAMS

Analog Controls - No Options

F45474 (0413) Page 44 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

Analog Controls - Kleenscreen

Page 45 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

Solid State or Computer Control - No Options

F45474 (0413) Page 46 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

Solid State of Computer Control - Kleenscreen

Page 47 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

WIRING DIAGRAMS

VK Fryer (C and D Models)

F45474 (0413) Page 48 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

Power Supply Box (Before 12/1/12) - VK Fryer with basket lifts and Kleenscreen

Page 49 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

Power Supply Box (Before 12/1/12) - VK Fryer without basket lifts and Kleenscreen

F45474 (0413) Page 50 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

VK Fryers with Electronic Ignition and Analog Control and Kleenscreen

Page 51 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - ELECTRICAL OPERATION

VK Fryers with Electronic Ignition and Analog Control

VK/TR D & C Fryer Wiring Diagram

VK/TR Analog Control W/ Kleenscreen Fryer Wiring Diagram

VK/TR Analog Control W/E.I. Stand Alone Fryer Wiring Diagram

F45474 (0413) Page 52 of 54

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - TROUBLESHOOTING

TROUBLESHOOTING

ALL MODELS

SYMPTOMS POSSIBLE CAUSES

1. Harness connection to gas valve.

2. Gas valve or gas pressure.

3. Air filter.

4. All harness connections.

Ignition lockout, continuous loud beep

Initial beep then shut off

No spark no blower

"Puffing" during initial start up

5. Electrode.

6. Drain valve switch open or switch malfunction.

7. Interconnecting wiring malfunction.

8. Ignition module malfunction.

9. High limit or thermostat open.

10. Vent hose closed off or restricted.

1. Grounding status.

2. Check electrode.

1. Harness connections (check for flashing light in A control).

2. Probe lead wires.

3. Open probe.

4. Controller.

5. Open fuse on ignition/blower control board

1. Air Filter dirty.

2. Incorrect gas pressure.

3. Vent hose closed off or restricted.

Burner lights but will not maintain flame

4. Cracked electrode.

5. Electrode gap exceeding 3/16".

1. Igniter/flame sense misaligned.

2. Insufficient gas pressure.

3. Incorrect polarity from transformer to ignition module.

Page 53 of 54 F45474 (0413)

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - TROUBLESHOOTING

ALL MODELS

SYMPTOMS POSSIBLE CAUSES

1. Incorrect temperature offset selected.

2. Set temperature exceeding 400°F.

Excessive heat

Low heat

Intermittent problems

No power to cooking control, fryer does not heat

3. Temperature probe malfunction.

4. Cooking control malfunction.

5. Interface board malfunction.

6. Gas pressure incorrect.

1. Incorrect temperature offset selected.

2. Cooking control malfunction.

3. Temperature probe malfunction.

4. High limit tripped.

5. Interface board malfunction.

6. Gas pressure incorrect.

1. High ambient temperatures.

2. Wiring connections loose.

1. Power switch off or malfunction.

2. Main circuit breaker off.

3. Transformer inoperative.

4. Interconnecting wiring malfunction.

1. Shortening level below minimum fill line.

High limit thermostat shutting down system

Excessive time to melt shortening (more than 45 minutes)

Dry fire fry tank

2. Probe malfunction.

3. Control malfunction.

1. Melt cycle timing incorrect.

2. Insufficient gas pressure.

3. Air inlet obstructed or incorrect.

4. Probe malfunction.

5. Control malfunction.

1. Magnets on drain valve (DVI switch) not aligned properly.

2. Control malfunction.

3. Probe malfunction.

F45474 (0413) Page 54 of 54

CONN.

CONN. (D1)

1 2 3 654

CONN.

(C)

(

1012 11 79 8 56 4 3 2 1

SEE AI 3520 POWER SUPPY BOX WITH KLEENSCREEN

TO FILL SOLENOID

CONN.

(C3)

1 2 3 4

1 K COMBO VALVE

(C3)

HARNESS, BLOWER CONNECTIONZ121

MANIFOLD HARNESSZ31

HARNESS, MAINM1

HI-LIMITL1

TO PUMP MOTOR

CONN.

(C4)

1 2

(C4)

1 2 3 654

Z12

THERMISTOR

PROBE

1 2 3

BLOWER

2 3

CONTROL

4 5

BLOWER POWER

BLACK

BLUE

BROWN

INTERFACE HARNESSJ1

TERMINAL, STATIONARYG2

AIR FILTER SWITCH ASSEMBLYF1

CONTROL INTERFACE TRIDELTAE1

D.V.I. HARNESS ASSEMBLYD1

THERMISTORC1

ROCKER SWITCH ASSEMBLYB1

NCC CONTROLLER W/TIMER(S)A1-

NCC COMPUTERA1

FILTER DUMP SWITCH

1 2

CONN (G)

1 2 3 654

OPTIONAL AIR FILTER SWITCH

426805-G1 DVI SWITCH

CONN.

CONN. (D)

(D)

321 64 5 87 11109 12

1 2 3 4 5

CONN. (A)

SEE AI 3522 OPTIONAL BASKET LIFTS

VKC MODELS

VKD MODELS

ITEM LETTER

SEE AI3521 POWER SUPPLY BOX W/O KLEENSCREEN

WIRING DIAGRAM W & W/O / SOLENOID KLEENSCREEN VK/TR FYERS W/ELECTRONIC IGNITION W & W/O LIFTS

CONN.

(C2)

2 3

TO N.O.

TO N.O. DUMP SW.

DUMP SW.

POWER SWITCH

68 69

CONN

CONN (E1)

(E1)

10 9

321 64 5 87 11109 12

GND.GND.

DERIVED FROM 959502-1

AI3519

AMATECK NCC

FRYER COMPUTER

FRYER CONTROL

CONN

1 2 3 4

(E2)

CONN (E3)

POWER IN

CONN.

(C)

1012 11 79 8 56 4 3 2 1

GREEN

GND.

WHITE

BLACKBLACK

TRANSFORMER

40VA

24V

TO FILL

SOLENOID

1 2 3 4

CONN.

(C3)

Z10

Z15

TO PUMP

CONN.

1 2

CONN.

(C4)

CONN.

(C6)

1 2 3 654

TO BLOWER HOT

TO BLOWER NEUTRAL TO BLOWER GROUND

TO BLOWER CONTROL + TO BLOWER CONTROL -

TO BLOWER CONTROL PWM

BURNER IGNIGHTOR

TO 10-24 BOLT ON TRANSFER TUBE PLATE

JUMPERZ151

STATIONARY TERMINALG1

POWER OUT

POWER CONNECTORS VIEWED FROM OUTSIDE OF BOX TOP OF VIEW IS LEFT OF BOX

1 2 3 4 5 6

CONN. (A)

N.O.

N.C.

WIRE ASSEMBLY Z41

FEMALE RECEPTACLEZ31

YELLOW

YELLOWYELLOW

YELLOW

GND.

CONN.

(C2)

2 3

TO N.O.

1 W 24V 40VA TRANSFORMER

MALE RECEPTACLEZ21

HARNESS DUMP SWITCH CONNECTZ141

HARNESS, PUMP MOTOR CONNECTZ121

HARNESS, BLOWER MOTOR CONTROLZ111

HARNESS, SOLENOID CONNECTZ101

RELAY SPST 24 VAC COILZ91

RELAY 1 HP 120 VOLTZ81

WIRE ASSEMBLY (GREEN)Z72

WIRE ASSEMBLY [13,14,16,17]Z64

WIRE ASSEMBLY [12]Z51

CONTROL, FENWAL PIMZ1

WIRE NUT YELLOWY2

POWER SUPPL BOX WITH KLEENSCREEN

DERIVER FROM 959502-1 AI3520

WIRING DIAGRAM

VKD/TRD MODELS

VKC/TRC MODELS

WIRE NUTT2

GROUND LUGS1

IGNITER CABLEP1

POWER HARNESSN1

ITEM LETTER

TO BLOWER HOT

TO BLOWER NEUTRAL TO BLOWER GROUND

TO BLOWER CONTROL + TO BLOWER CONTROL -

CONN.

(C)

1012 11 79 8 56 4 3 2 1

GREEN

WHITE

BLACKBLACK

Z15

CONN.

(C6)

TO BLOWER CONTROL PWM

1 2 3 654

BURNER IGNIGHTOR

POWER IN

POWER CONNECTORS VIEWED FROM OUTSIDE OF BOX TOP OF VIEW IS LEFT OF BOX

GND.

TRANSFORMER

40VA

24V

YELLOWYELLOW

YELLOW

TO 10-24 BOLT ON TRANSFER TUBE PLATE

JUMPERZ151

STATIONARY TERMINALG1

WIRE ASSEMBLY Z41

MALE RECEPTACLEZ21

HARNESS, BLOWER MOTOR CONTROLZ111

WIRE ASSEMBLY (GREEN)Z71

WIRE ASSEMBLY [13,14]Z62

WIRE ASSEMBLY [12]Z51

GND.

DERIVED FROM 959502-1

234

1 W 24V 40VA TRANSFORMER

CONTROL, FENWAL PIMZ1

WIRE NUT YELLOWY2

WIRE NUTT2

GROUND LUGS1

IGNITER CABLEP1

POWER HARNESSN1

POWER SUPPLY BOX W/O KLEENSCREEN

ITEM LETTER

WIRING DIAGRAM

VKD/TRD MODELS

AI3521

VKC/TRC MODELS

CONN.

(B)

CONN.

(A)

OPTIONAL BASKET LIFT ASSEMBLY

FOR SINGLE BASKET LIFT USE RH VIEW FOR DUAL BASKET LIFT USE RH & LH VIEW

1 2 3 4 5

CONN. (A)

OPTIONAL BASKET LIFT ASSEMBLY

FOR SINGLE BASKET LIFT USE RH VIEW FOR DUAL BASKET LIFT USE RH & LH VIEW

LEFT LIFT

NC NC

NO NO

COILCCOIL

BLUE WHITE

DUAL

RIGHT LIFT

SINGLE

LEFT RELAYS

DERIVED FROM 428863-1 AND 959502-1

NC NC

NO NO

COILCCOIL

RIGHT RELAYS

GREEN ORANGE

RED

GND.

OPTIOANL BASKET LIFT WIRING DIAGRAMS

AI3522

CONN. (D1)

1 2 3 654

CONN.

(C)

(

1012 11 79 8 56 4 3 2 1

SEE AI 3520 POWER SUPPY BOX WITH KLEENSCREEN

TO FILL SOLENOID

CONN.

(C3)

1 2 3 4

(C3)

HARNESS, BLOWER CONNECTIONZ121

MANIFOLD HARNESSZ31

TO PUMP MOTOR

CONN.

(C4)

1 2

(C4)

1 2 3 654

Z12

1 2 3

BLOWER

2 3

CONTROL

4 5

BLOWER POWER

BLACK

BLUE

BROWN

HARNESS, MAINM1

HI-LIMITL1

1 K COMBO VALVE

INTERFACE HARNESSJ1

TERMINAL, STATIONARYG2

D.V.I. HARNESS ASSEMBLYD1

THERMISTORC1

ROCKER SWITCH ASSEMBLY-MOM.B11

ROCKER SWITCH ASSEMBLYB3

NCC CONTROLA1

VKA MODELS

ITEM LETTER

FILTER DUMP SWITCH

CONN.

(C2)

2 3

TO N.O.

TO N.O. DUMP SW.

DUMP SW.

1 2

THERMISTOR PROBE

CONN (G)

DVI SWITCH OPTIONAL

1 2 3 654

1 2

FILTER

FILTER SWITCH

SWITCH

POWER SWITCH

CONN.

CONN. (D)

(D)

321 64 5 87 11109 12

CONN (E1)

1 2

GREEN

START SWITCH

GND.

MELT SELECT SWITCH

NO DOT

BLACK

RED

GREY

1 2

CONN (E3)

1 2 3

CONN (E2)

1 2

R E D

DERIVED FROM 959402-2

WIRING DIAGRAM ANALOG SOLID STATE CONTROL VK/TR FRYERS W/E.I. ANALOG KLEENSCREEN

CONN (E4)

AI3523

POWER IN

CONN.

(C)

1012 11 79 8 56 4 3 2 1

GREEN

GND.

WHITE

BLACKBLACK

TRANSFORMER

40VA

24V

TO FILL

SOLENOID

1 2 3 4

CONN.

(C3)

Z10

Z15

TO PUMP

CONN.

1 2

CONN.

(C4)

CONN.

(C6)

1 2 3 654

TO BLOWER HOT

TO BLOWER NEUTRAL TO BLOWER GROUND

TO BLOWER CONTROL + TO BLOWER CONTROL -

TO BLOWER CONTROL PWM

BURNER IGNIGHTOR

TO 10-24 BOLT ON TRANSFER TUBE PLATE

JUMPERZ151

STATIONARY TERMINALG1

POWER OUT

POWER CONNECTORS VIEWED FROM OUTSIDE OF BOX TOP OF VIEW IS LEFT OF BOX

1 2 3 4 5 6

CONN. (A)

N.O.

N.C.

WIRE ASSEMBLY Z41

FEMALE RECEPTACLEZ31

YELLOW

YELLOWYELLOW

YELLOW

GND.

CONN.

(C2)

2 3

TO N.O.

1 W 24V 40VA TRANSFORMER

MALE RECEPTACLEZ21

HARNESS DUMP SWITCH CONNECTZ141

HARNESS, PUMP MOTOR CONNECTZ121

HARNESS, BLOWER MOTOR CONTROLZ111

HARNESS, SOLENOID CONNECTZ101

RELAY SPST 24 VAC COILZ91

RELAY 1 HP 120 VOLTZ81

WIRE ASSEMBLY (GREEN)Z72

WIRE ASSEMBLY [13,14,16,17]Z64

WIRE ASSEMBLY [12]Z51

CONTROL, FENWAL PIMZ1

WIRE NUT YELLOWY2

POWER SUPPL BOX WITH KLEENSCREEN

DERIVER FROM 959502-1 AI3520

WIRING DIAGRAM

VKD/TRD MODELS

VKC/TRC MODELS

WIRE NUTT2

GROUND LUGS1

IGNITER CABLEP1

POWER HARNESSN1

ITEM LETTER

CONN. (D1)

1 2 3 654

CONN.

(C)

(

1012 11 79 8 56 4 3 2 1

SEE AI3521 POWER SUPPLY BOX W/O KLEENSCREEN

HARNESS, BLOWER CONNECTIONZ121

MANIFOLD HARNESSZ31

HARNESS, MAINM1

HI-LIMITL1

1 K COMBO VALVE

1 2 3 654

Z12

1 2 3

BLOWER

2 3

CONTROL

4 5

BLOWER POWER

BLACK

BLUE

BROWN

INTERFACE HARNESSJ1

TERMINAL, STATIONARYG2

D.V.I. HARNESS ASSEMBLYD1

THERMISTORC1

ROCKER SWITCH ASSEMBLY-MOM.B11

ROCKER SWITCH ASSEMBLYB2

NCC CONTROLA1

VKA MODELS

ITEM LETTER

DVI SWITCH OPTIONAL

THERMISTOR PROBE

1 2 3 654

CONN (G)

1 2

POWER SWITCH

CONN.

CONN. (D)

(D)

321 64 5 87 11109 12

CONN (E1)

1 2

GREEN

START SWITCH

GND.

MELT SELECT SWITCH

NO DOT

BLACK

RED

GREY

1 2

CONN (E3)

1 2 3

CONN (E2)

1 2

R E D

DERIVED FROM 959402-3

WIRING DIAGRAM ANALOG SOLID STATE CONTROL VK/TR FRYERS W/E.I. ANALOG STAND ALONE

CONN (E4)

AI3524

TO BLOWER HOT

TO BLOWER NEUTRAL TO BLOWER GROUND

TO BLOWER CONTROL + TO BLOWER CONTROL -

CONN.

(C)

1012 11 79 8 56 4 3 2 1

GREEN

WHITE

BLACKBLACK

Z15

CONN.

(C6)

TO BLOWER CONTROL PWM

1 2 3 654

BURNER IGNIGHTOR

POWER IN

POWER CONNECTORS VIEWED FROM OUTSIDE OF BOX TOP OF VIEW IS LEFT OF BOX

GND.

TRANSFORMER

40VA

24V

YELLOWYELLOW

YELLOW

TO 10-24 BOLT ON TRANSFER TUBE PLATE

JUMPERZ151

STATIONARY TERMINALG1

WIRE ASSEMBLY Z41

MALE RECEPTACLEZ21

HARNESS, BLOWER MOTOR CONTROLZ111

WIRE ASSEMBLY (GREEN)Z71

WIRE ASSEMBLY [13,14]Z62

WIRE ASSEMBLY [12]Z51

GND.

DERIVED FROM 959502-1

234

1 W 24V 40VA TRANSFORMER

CONTROL, FENWAL PIMZ1

WIRE NUT YELLOWY2

WIRE NUTT2

GROUND LUGS1

IGNITER CABLEP1

POWER HARNESSN1

POWER SUPPLY BOX W/O KLEENSCREEN

ITEM LETTER

WIRING DIAGRAM

VKD/TRD MODELS

AI3521

VKC/TRC MODELS

Vulcan 1TR45A Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual