Vulcan-Hart 1GR45A Manuale utente

This Manual is prepared for the use of trained Vulcan Service

Technicians and should not be used by those not properlyqualified.

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.

2GR45AF KLEENSCREEN

FRYER BATTERY

SERVICE MANUAL

GRA SERIES GAS FRYERS WITH

KLEENSCREEN PLUS®

FILTRATION SYSTEMS

MODEL ML MODEL ML

1GR45A 136647 3GR85AF 136655

1GR65A 136648 4GR45AF 136656

1GR85A 136649 4GR65AF 136657

2GR45AF 136650 4GR85AF 136681

2GR65AF 136651 2XGR45AF 136658

2GR85AF 136652 2XGR65AF 136659

3GR45AF 136653 2XGR85AF 136660

3GR65AF 136654

For additional information on Vulcan-Hart Company or to locate an authorized parts

and service provider in your area, visit our website at www.vulcanhart.com.

A product of VULCAN-HART LOUISVILLE, KY 40201-0696

F25377 (March 2010)

GRA SERIES GAS FRYERS

TABLE OF CONTENTS

GENERAL ................................................................................ 3

Introduction ............................................................................ 3

Single Floor Model Fryers ................................................................ 3

Kleenscreen Filtration System ............................................................. 4

Specifications .......................................................................... 4

Electrical .......................................................................... 4

GasPressures ..................................................................... 4

Tools................................................................................. 4

REMOVALANDREPLACEMENTOFPARTS .................................................... 5

Splash Guard (Kleenscreen Fryers Only) ..................................................... 5

CookingControls ....................................................................... 5

Discard Valve Switch (Kleenscreen Fryers Only) ............................................... 5

GasBurners ........................................................................... 6

GasOrifice ............................................................................ 7

GasCombinationValve .................................................................. 7

GasPilot .............................................................................. 8

TemperatureProbe ..................................................................... 9

HighLimitThermostat ................................................................... 9

Power Supply Box Components ........................................................... 10

Fill Solenoid Valve (Kleenscreen Fryers Only) ................................................ 11

Pump and Motor (Kleenscreen Fryers Only) ................................................. 11

FryTankAssembly..................................................................... 12

SERVICEPROCEDURESANDADJUSTMENTS................................................. 14

Temperature Probe Test ................................................................ 14

CookingControlCalibration .............................................................. 15

ElectronicIgnitionSystem ............................................................... 15

FlameSenseCurrentCheck ............................................................. 16

ElectronicIgnitionControlTest............................................................ 16

GasManifoldPressureAdjustment ........................................................ 18

ELECTRICALOPERATION .................................................................. 19

Component Function ................................................................... 19

Power Supply Box Components ........................................................... 21

Sequence of Operation ................................................................. 22

Kleenscreen Filtering System ......................................................... 23

SchematicDiagrams ................................................................... 24

Fryers Without Kleenscreen Filtration System ............................................ 24

Fryers with Kleenscreen Filtration System ............................................... 25

WiringDiagrams ....................................................................... 26

Frymate(DumpStation) ............................................................. 30

TROUBLESHOOTING ...................................................................... 31

All Models ............................................................................ 31

Ignition Module ........................................................................ 32

Frymate (Dump Station) with Optional Heater ................................................ 35

Kleenscreen Filtering System ............................................................. 36

F25377 (March 2010) Page 2 of 36

GRA SERIES GAS FRYERS - GENERAL

GENERAL

INTRODUCTION

This Service Manual covers specific service

information related to the models listed on the front

cover. GRA series gas fryers come equipped with

behind-the-door solid state controls. The features

and operation of the cooking controls are the same

for both single floor model fryers and kleenscreen

battery fryers.

SINGLE FLOOR MODEL FRYERS

Fryers with the Filter-Ready option installed, use the

Mobile Filter. For service information related to the

Mobile filter refer to F24599 MOBILE FILTERS.

A GRO Frymate (dump station) can be configured in

a battery with fryers 15 1/2 inches or 21 inches in

width.

Model NO. OF HEAT TUBES

EACH FRY TANK

BTU/HOUR

EACH FRY TANK

FRYER WIDTH

(INCHES)

SHORTENING

CAPACITY (LBS)

EACH FRY TANK

1GR45A 4 120,000 15.5 45-50

1GR65A 5 150,000 21.0 65-70

1GR85A 5 150,000 21.0 85-90

2GR45AF 4 120,000 31.0 45-50

3GR45AF 4 120,000 46.5 45-50

4GR45AF 4 120,000 62.0 45-50

2GR65AF 5 150,000 42.0 65-70

3GR65AF 5 150,000 63.0 65-70

4GR65AF 5 150,000 84.0 65-70

2GR85AF 5 150,000 42.0 85-90

3GR85AF 5 150,000 63.0 85-90

4GR85AF 5 150,000 84.0 85-90

2XGR45AF 4 120,000 31.0 45-50

2XGR65AF 5 150,000 42.0 65-70

2XGR85AF 5 150,000 42.0 85-90

F25377 (March 2010)

Page 3 of 36

GRA SERIES GAS FRYERS - GENERAL

KLEENSCREEN FILTRATION

SYSTEM

The Kleenscreen filtration system is integrated into

the GRA Series fryer battery. The filter is housed in a

pull-out drawer assembly at the base of the fryer.

The filtering components in the drawer include a

stainless steel filter tank, crumb-catch basket and a

dual element mesh filter screen. With the filter

drawer closed, a self-seating oil return line provides

the path to return the filtered shortening to the fry

tank.

This system is designed to provide a thorough 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.

Kleenscreen fryer batteries are available in a

minimum of two and a maximum of four fryer

sections. The fryer size of each section is identical.

A GRO Frymate (dump station) can also be included

as one or more of the sections.

SPECIFICATIONS

Electrical

• 120VAC supply. A 24VAC transformer provides

power for the fryer controls and the filtering

controls on Kleenscreen battery fryers.

Gas Pressures

Manifold (per fryer section):

• Natural - 4" W.C.

• Propane - 10" W.C.

Building supply pressure (Min):

• Natural - 5" W.C. (7" W.C. battery units)

• Propane - 11" W.C. (12" W.C. battery units)

NOTE: Propane or Natural gases -14" W.C. (Max)

TOOLS

Standard

• Standard set of hand tools.

• VOM with A/C current tester (any quality VOM

with a sensitivity of at least 20,000 ohms per

volt can be used).

• Temperature tester (thermocouple type).

• U-Tube Manometer.

Special

• Field service grounding kit (available locally)

• OnWatch QuickLook™ 72, checks flame sense

and input voltage to the Honeywell S8600

series ignition control module with an

EnviraCOM™ port.

You can order the QuickLook™ 72 on line at

www.onwatchinc.com. The OnWatch Combo

Item #721014 includes both the QuickLook™ 72

and a 3 ft. data port extension cable.

• Burndy pin extraction tool RX2025 GE1;

Newark Electronics Catalog Number 16F6666.

Used for removing pin terminals on Burndy

connectors.

F25377 (March 2010) Page 4 of 36

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS

REMOVAL AND REPLACEMENT OF PARTS

SPLASH GUARD

(KLEENSCREEN FRYERS ONLY)

1. Open fryer section doors.

2. Remove screws securing splash guard.

3. Remove splash guard.

4. Reverse procedure to install.

COOKING CONTROLS

1. Open fryer section door(s).

2. Remove connections to cooking controls.

3. Remove screws securing controls.

4. Remove cooking controls.

5. Disconnect lead wires from the component

being replaced then remove from control box.

6. Reverse procedure to install and check for

proper operation.

DISCARD VALVE SWITCH

(KLEENSCREEN FRYERS ONLY)

1. Open the fryer section doors above filter pan.

F25377 (March 2010)Page 5 of 36

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS

2. Pull filter drawer out, remove filter tank

assembly and push the tank support arms back

into place under the fryer.

3. Remove splash guard from base frame.

4. From underneath the fryer:

A. Disconnect the discard valve switch lead

wire connector from power supply box.

B. Remove switch mounting screws.

5. Reverse procedure to install and check for

proper operation.

GAS BURNERS

1. Open the door to the fryer section being

serviced.

2. Remove cooking controls to access burner(s) if

necessary.

3. Remove drain pipe to access burner(s) if

necessary.

4. Remove gas burner shipping ties (if installed).

5. Lift gas burner up and tilt the top of burner

toward fryer tank until it clears the gas orifice at

the bottom.

NOTE: The burners mount to the burner mounting

bracket by shoulder bolts that rest in the keyway slot.

F25377 (March 2010) Page 6 of 36

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS

6. Remove burner.

7. Reverse procedure to install and check for

proper operation.

GAS ORIFICE

1. Remove gas orifice spud from orifice extension.

The spud screws into orifice extension.

When installing, do not over tighten the spud or

damage to the threads may occur.

2. Reverse procedure to install and check for

proper operation.

GAS COMBINATION VALVE

NOTE: If a gas combination valve is malfunctioning,

do not attempt to disassemble the valve for repair.

Install a replacement gas combination valve.

1. Remove GAS BURNERS.

2. Disconnect lead wires from gas combination

valve.

F25377 (March 2010)Page 7 of 36

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS

GAS PILOT FOR ELECTRONIC IGNITION SHOWN

3. Disconnect pilot tube from gas combination

valve.

4. Disconnect gas line fittings then remove gas

combination valve.

A. Remove gas line fittings from gas

combination valve and install (in same

orientation) on the replacement valve.

5. Reverse procedure to install and check for

proper operation.

A. Clean the pipe threads and apply pipe joint

compound to threads. Any pipe joint

compound used must be resistant to the

action of propane gases.

GAS PILOT

1. Remove GAS BURNERS as necessary.

2. Remove pilot burner assembly and bracket from

pilot bracket stand-off on the fry tank.

3. Remove wire tie and disconnect ignitor cable

from ignitor/flame sense electrode on the gas

pilot.

4. Disconnect pilot tube from gas pilot.

5. Remove screws (2) securing gas pilot to

mounting bracket.

A. To remove gas orifice from pilot for

inspection or cleaning, disconnect the gas

orifice fitting from pilot body.

B. If orifice is clogged with debris, clean with

air or liquid only.

6. Reverse procedure to install and check for

proper operation.

A. Secure ignitor to pilot tube with wire tie.

F25377 (March 2010) Page 8 of 36

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS

TEMPERATURE PROBE

Do not sharply bend and kink, or clamp

down on the capillary tube or damage may occur.

1. Drain shortening from fryer tank.

2. Disconnect smaller, 6-pin male connector.

(Temperature probe and drain valve interlock

(DVI) connector)

3. Remove the temperature probe lead wires from

pins 1 and 3 of the 6-pin male connector.

4. Remove GAS BURNERS as necessary.

5. Remove the probe retaining and packing nuts.

6. Remove screws securing probe mounting clips

and probe to the fryer heat tube (inside tank)

then remove probe.

7. Reverse procedure to install and check for

proper operation.

8. Check COOKING CONTROL CALIBRATION

under SERVICE PROCEDURES AND

ADJUSTMENTS.

HIGH LIMIT THERMOSTAT

Do not sharply bend and kink, or clamp

down on the capillary tube or damage may occur.

1. Drain shortening from fryer tank.

2. Remove GAS BURNERS as necessary.

3. Disconnect lead wires from high limit

thermostat.

F25377 (March 2010)Page 9 of 36

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS

4. Remove screws securing the high limit to

mounting bracket.

5. Remove the capillary tube retaining and packing

nuts.

6. Remove screws securing mounting clips and

capillary tube to the fryer heat tube (inside tank)

then remove capillary tube.

7. Reverse procedure to install.

POWER SUPPLY BOX

COMPONENTS

NOTE: The power supply box must be removed to

access the following components: Ignition control

module, transformer, R1 pump motor relay, R2 fill

relay.

1. Disconnect all wiring harness connectors and

power cords from power supply box.

2. From rear, remove screw securing power

supply box to mounting bracket.

NOTE: Power supply box is slotted at the front and

secured by a hanging bracket (loose fit).

3. Remove cover from power supply box.

4. Disconnect lead wires from the component

being replaced then remove from power supply

box.

F25377 (March 2010) Page 10 of 36

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