Vulcan Materials 2GR45AF user manual

User manual for the device Vulcan Materials 2GR45AF

Device: Vulcan Materials 2GR45AF
Category: Fryer
Manufacturer: Vulcan Materials
Size: 6.6 MB
Added : 1/18/2014
Number of pages: 36
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Abstracts of contents
Summary of the content on the page No. 1

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
2GR45AF KLEENSCREEN
3GR65AF 136654
FRYER BATTERY
This Manual is prepared for the use of trained Vulcan Service
Technicians and should not be used by those not properly qualified.
This manual

Summary of the content on the page No. 2

GRA SERIES GAS FRYERS TABLE OF CONTENTS GENERAL ................................................................................ 3 Introduction ............................................................................ 3 Single Floor Model Fryers ................................................................ 3 Kleenscreen Filtration System ............................................................. 4 Specifications ..........................................................................

Summary of the content on the page No. 3

GRA SERIES GAS FRYERS - GENERAL GENERAL INTRODUCTION SINGLE FLOOR MODEL FRYERS This Service Manual covers specific service Fryers with the Filter-Ready option installed, use the information related to the models listed on the front Mobile Filter. For service information related to the cover. GRA series gas fryers come equipped with Mobile filter refer to F24599 MOBILE FILTERS. behind-the-door solid state controls. The features A GRO Frymate (dump station) can be configured in and operation of t

Summary of the content on the page No. 4

GRA SERIES GAS FRYERS - GENERAL KLEENSCREEN FILTRATION TOOLS SYSTEM Standard The Kleenscreen filtration system is integrated into • Standard set of hand tools. the GRA Series fryer battery. The filter is housed in a • VOM with A/C current tester (any quality VOM pull-out drawer assembly at the base of the fryer. with a sensitivity of at least 20,000 ohms per The filtering components in the drawer include a volt can be used). stainless steel filter tank, crumb-catch basket and a dual element mesh

Summary of the content on the page No. 5

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 screws securing controls. 4. Remove cooking controls. 5. Disconnect lead wires from the component being replaced then remove from control box. 3. Remove splash guard. 4. Reverse procedure to install. COOKING CONTROLS 6. Reverse procedure to install and check for proper operation. DISCARD VA

Summary of the content on the page No. 6

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS 2. Pull filter drawer out, remove filter tank 2. Remove cooking controls to access burner(s) if assembly and push the tank support arms back necessary. into place under the fryer. 3. Remove splash guard from base frame. 3. Remove drain pipe to access burner(s) if 4. From underneath the fryer: necessary. A. Disconnect the discard valve switch lead wire connector from power supply box. B. Remove switch mounting screws. 4. Remove gas burner

Summary of the content on the page No. 7

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS 2. Reverse procedure to install and check for proper operation. GAS COMBINATION VALVE 6. Remove burner. 7. Reverse procedure to install and check for proper operation. GAS ORIFICE 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. 1. Remove gas orifice spud from orif

Summary of the content on the page No. 8

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS 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 gas

Summary of the content on the page No. 9

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS and probe to the fryer heat tube (inside tank) TEMPERATURE PROBE then remove 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) 7. Reverse procedure to install and check for proper operation. 8. Check COOKING CONTROL CALIBRATION under SERVICE PROCEDURES

Summary of the content on the page No. 10

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS POWER SUPPLY BOX COMPONENTS 4. Remove screws securing the high limit to mounting bracket. 5. Remove the capillary tube retaining and packing nuts. 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 mo

Summary of the content on the page No. 11

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS 4. Disconnect swivel pipe fitting at rear of fry tank. 5. Reverse procedure to install and check for proper operation. FILL SOLENOID VALVE (KLEENSCREEN FRYERS ONLY) REAR VIEW SHOWN 5. Disconnect fill solenoid valve lead wire connector (4 pin) from power supply box. 6. Remove screws (2) securing the solenoid valve body flange to pipe tee then remove the assembly from fryer. A. Remove pipe fittings from solenoid valve and install on replace

Summary of the content on the page No. 12

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS 2. Open the fryer section doors above the filter FRY TANK ASSEMBLY tank drawer. 3. Pull filter drawer out, remove filter tank assembly and push the tank support arms back into place under the fryer. 4. Remove splash guard from base frame. 1. Drain shortening from fryer tank. 2. Disconnect the gas supply line to allow access to fryer from all sides. 3. Remove fryer baskets, crumb screen and basket hanger. 5. Disconnect pump motor lead wire

Summary of the content on the page No. 13

GRA SERIES GAS FRYERS - REMOVAL AND REPLACEMENT OF PARTS 6. Remove POWER SUPPLY BOX. 9. Disconnect swivel fitting from fry tank at the rear 7. On battery fryer sections only, remove splash (shortening line inlet to fry tank). guard from base frame. 10. Disconnect flexible gas line fitting at manual shutoff valve (gas supply inlet to valve). 11. Remove screws securing the top of fry tank to the flue wrap. NOTE: Remove wire ties securing lead wires and wiring harnesses as necessary before removin

Summary of the content on the page No. 14

GRA SERIES GAS FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS SERVICE PROCEDURES AND ADJUSTMENTS TEMPERATURE PROBE TEST The temperature 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 occurs, red diagnostic LED on back of control assembly (inside control box cover) will flash. The heat demand outputs are de-activated. 3. Test the probe using a VOM to measure resistance. Conne

Summary of the content on the page No. 15

GRA SERIES GAS FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS 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 EF. 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 EF and turn th

Summary of the content on the page No. 16

GRA SERIES GAS FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS control calls for heat, the heat output is activated and the main valve coil on the combination valve is then energized, allowing gas flow to the burners. Terminal Description MV (main voltage) - 24VAC output will be present, providing the 1 ignitor/flame sense electrode is sensing an adequate pilot fame. 2 MV/PV (common). PV (pilot voltage) - 24VAC output will be present after the ignition module is powered. The voltage will 4. Meter re

Summary of the content on the page No. 17

GRA SERIES GAS FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS 3. Turn the power switch on and verify the ignition control module is receiving power from the transformer. A. If 24VAC is present, then module is receiving power. Turn the power switch off and continue with procedure. B. If 24VAC is not present then find the ELECTRONIC IGNITION GAS PILOT SHOWN source of the problem. D. Check the ignitor cable connection for 4. Disconnect power to the machine. tightness and damaged insulation. If the ign

Summary of the content on the page No. 18

GRA SERIES GAS FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS adequate sizing. GAS MANIFOLD PRESSURE B. If adjustment is necessary, continue with ADJUSTMENT procedure. 1. Open the door(s) and remove drain pipe. 5. Remove burners as necessary. 6. Remove the adjustment screw cap to access the pressure adjustment screw on gas combination valve. 2. To measure the manifold pressure, remove plug and attach manometer to pressure tap in manifold. A. To increase pressure, turn the screw clockwise. To decrea

Summary of the content on the page No. 19

GRA SERIES GAS FRYERS - ELECTRICAL OPERATION ELECTRICAL OPERATION COMPONENT FUNCTION FRYER CONTROLS Cooking Control .............. Monitors and evaluates input signals to the control: Activates heat output signal to maintain shortening temperature; and activates filter output signal to power the fill solenoid valve. Transformer ................. Supplies 24VAC to the cooking control ignition control module. Transformer is energized when power switch is turned on. Power Switch ................ Su

Summary of the content on the page No. 20

GRA SERIES GAS FRYERS - ELECTRICAL OPERATION KLEENSCREEN FILTER CONTROLS Fill Solenoid Valve ............ When energized by filter switch, the solenoid valve opens to allow the flow of shortening thru filtering system. Pump Motor ................. Operates pump to circulate shortening through filtering system. Start Switch .................. Supplies power to temperature control module. Filter Switch ................. Supplies power to pump motor thru R1 and fill solenoid valve thru R2. Discard


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