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Vulcan Fritös GR85

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GR Series Gas Fryers with NCC

Controls (formerly Tridelta / Built

after 3/05)

Use this manual for Fryers built after March 2005. Use

Service Manual F25114 (8/02) for Fryers built prior to

March 2005.

GR 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.

SERVICE MANUAL

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

F35660 Rev. A (0717)

TABLE OF CONTENTS

SERVICE UPDATES ....................................................................................... 4

SERVICE UPDATES ................................................................................... 4

GENERAL .................................................................................................. 5

INTRODUCTION ....................................................................................... 5

MODEL AND ML NUMBERS ............................................................................ 5

SINGLE FLOOR MODEL FRYERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

KLEENSCREEN FILTERING SYSTEM .................................................................. 6

SPECIFICATIONS ...................................................................................... 8

TOOLS ................................................................................................. 9

REMOVAL AND REPLACEMENT OF PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

COVERS AND PANELS ............................................................................... 10

COOKING CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

DISCARD VALVE SWITCH (KLEENSCREEN FRYERS ONLY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

GAS BURNERS ....................................................................................... 12

GAS ORIFICE ......................................................................................... 13

GAS COMBINATION VALVE .......................................................................... 13

GAS PILOT ........................................................................................... 14

TEMPERATURE PROBE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

HIGH LIMIT THERMOSTAT ........................................................................... 16

POWER SUPPLY BOX COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

FILL SOLENOID VALVE (KLEENSCREEN FRYERS ONLY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

BASKET LIFT TUBE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

BASKET LIFT MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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

BASKET LIFT CAM ................................................................................... 20

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

FRY TANK ASSEMBLY ............................................................................... 21

SERVICE PROCEDURES AND ADJUSTMENTS ........................................................... 23

TEMPERATURE PROBE TEST ....................................................................... 23

COOKING CONTROL CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

ELECTRONIC IGNITION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

FLAME SENSE CURRENT CHECK .................................................................... 24

ELECTRONIC IGNITION CONTROL TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

GAS MANIFOLD PRESSURE ADJUSTMENT .......................................................... 26

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

SOLID STATE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

COMPUTER CONTROL - OLDER CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

COMPUTER CONTROL - NEWER CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

ELECTRICAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

COMPONENT FUNCTION ............................................................................ 36

COMPONENT LOCATION ............................................................................. 37

POWER SUPPLY BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

SCHEMATIC DIAGRAMS ............................................................................. 42

WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

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

ALL MODELS ......................................................................................... 53

SOLID STATE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

COMPUTER CONTROL ............................................................................... 55

SOLID STATE OR COMPUTER CONTROL HARNESS PIN-OUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

INTERFACE CONTROL BOARD PIN-OUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

FRYMATE (DUMP STATION) WITH OPTIONAL HEATER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

GR Series Gas Fryers with NCC Controls (formerly Tridelta / Built after 3/05)

F35660 (0717) Page 2 of Rev A .56

KLEENSCREEN FILTERING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

GR Series Gas Fryers with NCC Controls (formerly Tridelta / Built after 3/05)

Page 3 of F35660 (0717)56 Rev A .