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GR SERIES GAS FRYERS - ELECTRICAL OPERATION

F25125 (March 2003)

Page 18 of 24

SCHEMATIC DIAGRAM

Millivolt Controls

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Содержание GR25

Страница 1: ... 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 Reproduction or other use of this Manual without the express written consent of Vulcan is prohibited GR35 SHOWN SERVICE MANUAL GR SERIES GAS F...

Страница 2: ...pile 9 Fry Tank Assembly 10 Filter Valve and Discard Valve Switches 11 Pump and Motor 11 SERVICE PROCEDURES AND ADJUSTMENTS 12 Control Thermostat Calibration 12 Gas Manifold Pressure Adjustment 13 Pilot Burner Flame Adjustment 13 Millivolt Controls Test 14 ELECTRICAL OPERATION 15 Component Function 15 Component Location 16 Sequence of Operation 17 Millivolt Controls 17 Kleenscreen Filtering System...

Страница 3: ...y The information in the GR Series Service Manual also applies to Non Filter Ready fryers Non Filter Ready fryers are available in batteries of two to six An RO Frymate dump station can be configured in a battery with fryers 15 1 2 or 21 in width Model Designations Models and Features MODEL FEATURES FRYER WIDTH INCHES SHORTENING CAPACITY POUNDS FRY TANK COOKING CONTROL GR25 1 10 1 2 25 30 Full The...

Страница 4: ...s filtering system Easy to clean and low maintenance The Kleenscreen fryer battery still utilizes many of the same components as the single floor model and Non Filter ready battery fryers Kleenscreen fryer batteries are available in a minimum of two and a maximum of six fryer sections The fryer size of each section is identical An RO Frymate dump station can also be included as one or more of the ...

Страница 5: ...TION GR25 GR25F 2 60 000 GR35 GR35F 3 90 000 GR45 GR45F 4 120 000 GR65 GR65F 5 150 000 GR85 GR85F 5 150 000 TOOLS Standard Standard set of hand tools VOM with AC current tester NOTE Any quality VOM with a sensitivity of 20 000 ohms per volt can be used Temperature tester thermocouple type U Tube Manometer Pipe joint compound suitable for use with propane gas REMOVAL AND REPLACEMENT OF PARTS FRONT ...

Страница 6: ... knob from control thermostat shaft then remove control thermostat from mounting bracket 4 Disconnect lead wires from control thermostat 5 Remove the capillary tube retaining and packing nuts from the bottom of fry tank 6 Remove screws securing capillary tube mounting clips to the fry tank heat tube then remove capillary tube 7 Reverse procedure to install and check for proper operation HIGH LIMIT...

Страница 7: ...THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT TAGOUT PROCEDURES WARNING SHUT OFF THE GAS BEFORE SERVICING THE UNIT 1 Open fryer door 2 Remove main burner shipping ties if installed NOTE All shipping ties should be removed during installation Do not replace for normal operation 3 Lift main burner up and tilt the top of burner toward fry tank until it clears the gas orifice at the bottom A ...

Страница 8: ...G 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 Gas combination valves are not serviceable and should not be disassembled Once the problem has been isolated to this control replace it Do not attempt to repair the assembly 1 Remove burners as necessary as outlined under MAIN BURNERS 2 Disconnect lead wi...

Страница 9: ...onnect pilot tube from pilot burner NOTE With pilot tube disconnected from pilot burner the pilot orifice is accessible for inspection or cleaning CAUTION If orifice is clogged with debris clean with air or liquid only 4 Remove pilot burner from pilot mounting bracket stool on fry tank 5 Remove pilot burner from pilot mounting bracket 6 Reverse procedure to install and check for proper operation T...

Страница 10: ...ready remove mounting nuts securing gas manifold and hanger assembly to the fryer s base frame B For other fryer sections in a battery and for non filter ready fryers remove mounting nuts securing gas manifold and hanger assembly to the V shaped support bracket 12 On Kleenscreen and filter ready fryers only separate the oil return line hose or flexible tubing fitting at the elbow 13 Separate gas l...

Страница 11: ...n both fryer cabinet doors above the filter tank drawer 2 Pull the filter drawer out remove the filter tank assembly and push the tank support arms back underneath the fryer NOTE The remaining steps are written for front removal of the pump assembly If access to the back of the fryer is available it may be easier to remove the pump from the rear 3 Remove burners from the right side fryer section a...

Страница 12: ...differential is less than 20 F the control thermostat is functioning properly B If the differential is more than 20 F the control thermostat is malfunctioning 1 Install a replacement control thermostat as outlined under CONTROL THERMOSTAT in REMOVAL AND REPLACEMENT OF PARTS 6 Calculate the average temperature by adding the temperature reading when the main burners turn off to the temperature readi...

Страница 13: ...ore is observed then the gas supply needs to be checked by the gas line installer or the local gas company for adequate sizing B If adjustment is necessary continue with procedure 7 Remove the adjustment screw cap to access the pressure adjustment screw A To increase pressure turn the screw clockwise To decrease pressure turn the screw counterclockwise NOTE Accurate gas pressure adjustments can on...

Страница 14: ...n for 3 4 minutes to stabilize voltage output from thermopile 4 Verify thermopile output voltage A Set VOM to DC millivolt scale and connect meter leads to N O and COM terminals on the high limit thermostat 1 If 450 millivolts or greater is measured the thermopile is functioning properly Continue with test 2 If less than 450 millivolts is measured install a replacement thermopile as outlined under...

Страница 15: ...ve coil is energized Also regulates the gas manifold pressure High Limit Thermostat Prevents the shortening from reaching temperatures over 465 F auto reset KLEENSCREEN FILTER CONTROLS Filter Power Switch Supplies 120VAC to pump motor Filter valve switch or discard valve switch must be closed valve handle extended Pump Motor Operates pump to circulate shortening through filtering system Filter Val...

Страница 16: ...GR SERIES GAS FRYERS ELECTRICAL OPERATION F25125 March 2003 Page 16 of 24 GR35 NON FILTER READY SHOWN GR45 FILTER READY SHOWN 2GR45F KLEENSCREEN FRYER BATTERY SHOWN COMPONENT LOCATION ...

Страница 17: ...850 Refer to Installation Operation manual for specific instructions on filtering NOTE The filter valve handle and the discard valve handle are connected to a mechanical valve and switch assembly to route the flow of oil 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 Shortening between 300 F and 350 F N...

Страница 18: ...GR SERIES GAS FRYERS ELECTRICAL OPERATION F25125 March 2003 Page 18 of 24 SCHEMATIC DIAGRAM Millivolt Controls ...

Страница 19: ...GR SERIES GAS FRYERS ELECTRICAL OPERATION F25125 March 2003 Page 19 of 24 WIRING DIAGRAMS Millivolt Controls ...

Страница 20: ...GR SERIES GAS FRYERS ELECTRICAL OPERATION F25125 March 2003 Page 20 of 24 Junction Box Kleenscreen Filtering System ...

Страница 21: ...GR SERIES GAS FRYERS ELECTRICAL OPERATION F25125 March 2003 Page 21 of 24 Frymate Dump Station ...

Страница 22: ... properly B Fryer door open or removed Main burner s light but will not maintain flame 1 Insufficient gas pressure 2 Main burner s gas orifice obstructed or incorrect 3 Thermopile malfunction 4 Main burner s malfunction 5 Gas combination valve malfunction Fryer does not heat pilot burner lit 1 Control thermostat off or malfunctioning 2 Gas combination valve malfunction 3 Wiring connections loose o...

Страница 23: ...lete 3 Shortening below 300 F too thick 4 Filter valve switch malfunction 5 Filter valve mechanical malfunction 6 Pump is inoperative Shortening not discarding pump motor on 1 Filter screen plugged 2 Clog in filter system lines NOTE When all filtered oil is returned to the fry tank and filter power switch is off open the filter drawer approximately 1 Allow the remaining shortening in the line to d...

Страница 24: ... 411496 B4 Lighted Rocker Switch Filter 417792 1 Pump and Motor Assy Filter 120VAC GR SERIES GAS FRYERS WITH MILLIVOLT CONTROL PART NUMBER DESCRIPTION NOTES 419999 2 Thermostat Reed Switch 419670 2 High Limit Thermostat w stuffing box 410839 4 Thermopile Millivolt manual ign 410841 22 Gas Valve NAT 410841 23 Gas Valve LP 412212 7 Pilot NAT 412212 2 Pilot LP ...

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