Vulcan-Hart GR45F, GR85F, GR65F, GR35F, GR25 service manual Millivolt Controls Test

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GR SERIES GAS FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS

A.If adjustment is necessary, continue with procedure.

4.Remove the adjustment screw cap from the gas combination valve.

NON FILTER READY SHOWN

A.To increase pilot flame, turn the screw counterclockwise. To decrease pilot flame, turn the screw clockwise.

5.With the pilot burner lit, turn gas combination valve knob/extension arm to on and set the control thermostat to call for heat.

A.If main burners do not light or pilot burner goes out, proceed to MILLIVOLT CONTROLS TEST.

MILLIVOLT CONTROLS TEST

1.Verify millivolt control circuit wiring is correct and connections are clean and secure.

2.Verify pilot burner flame is adjusted properly as outlined under PILOT BURNER FLAME ADJUSTMENT.

3.With control thermostat off and gas combination valve knob/extension arm in the pilot position, allow pilot to burn 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 THERMOPILE in REMOVAL AND REPLACEMENT OF PARTS.

5.Turn gas combination valve knob/extension arm to on and set the control thermostat to call for heat.

6.Verify main burners light and remain lit.

A.If main burners operate as described, the millivolt controls are functioning properly.

B.If main burners do not light, continue with test.

7.Verify control thermostat contacts are closing.

A.Connect meter leads to the TH terminal on gas combination valve and COM terminal on the high limit thermostat.

1)If 150 millivolts or greater is measured, control thermostat is functioning properly. Replace gas combination valve as outlined under GAS COMBINATION VALVE in

REMOVAL AND REPLACEMENT OF PARTS.

F25125 (March 2003)

 

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Contents GR Series GAS Fryers with Millivolt Controls ModelTable of Contents General Introduction Single Floor Model or Battery FryersModel Designations Models and Features Kleenscreen Filtering System Tools Removal and Replacement of PartsSpecifications Front Panel DoorControl Thermostat High Limit ThermostatMain Burners Main Burner Orifice GAS Combination ValvePilot Burner ThermopileFRY Tank Assembly High Limit ThermostatFilter Valve and Discard Valve Switches Pump and MotorService Procedures and Adjustments Control Thermostat CalibrationGAS Manifold Pressure Adjustment Pilot Burner Flame AdjustmentMillivolt Controls Test Fryer Controls Electrical OperationComponent Function Kleenscreen Filter ControlsComponent Location Kleenscreen Filtering System Sequence of OperationMillivolt Controls Schematic Diagram Wiring Diagrams Junction Box, Kleenscreen Filtering System Frymate Dump Station ALL Models TroubleshootingSymptoms Possible Causes Symptom Possible Causes Frymate Dump Station With Optional HeaterGR Series GAS Fryers with Millivolt Control Condensed Spare Parts ListKleenscreen Filter

GR85, GR35, GR25, GR45F, GR35F specifications

Vulcan-Hart, a leader in the commercial kitchen equipment industry, offers an impressive lineup of gas griddles that cater to the diverse needs of foodservice operations. Among their most renowned models are the GR45, GR65, GR85F, GR65F, and GR35F, each characterized by its durability, efficiency, and innovative features.

The Vulcan-Hart GR45 is a compact yet powerful gas griddle designed for operations with limited space. It features a 45-inch cooking surface, made from polished steel that provides even heat distribution for optimal cooking results. The GR45 comes equipped with a manual control thermostatic feature, which allows for precise temperature adjustments, ensuring perfect cooking for various menu items. Its stainless steel construction not only guarantees durability but also makes cleaning a breeze.

In contrast, the GR65 offers a larger cooking surface, measuring 65 inches. This model is particularly well-suited for establishments with high-volume demands. The GR65 boasts a high-efficiency burner system that maximizes heat output while minimizing gas consumption. Its smooth, durable cooking surface allows chefs to sear meats, cook pancakes, and prepare various dishes simultaneously. Moreover, the GR65F variant includes a front grease drawer, facilitating easy cleanup and maintenance.

The GR85F model takes versatility a step further, featuring an expansive 85-inch cooking area. This griddle is ideal for high-traffic restaurants and catering operations, offering ample space to handle multiple orders at once. The GR85F utilizes a powerful gas burner system that delivers consistent heat across the entire cooking surface. Its built-in grease management system helps maintain a clean cooking area, making it a favorite among busy kitchen staff.

For those in need of a smaller griddle, the GR65F and GR35F models are perfect solutions. The GR65F is similar to the GR65 but with the added convenience of a front grease drawer, while the GR35F is ideal for establishments focusing on smaller menus or limited cooking space. Both models feature reliable performance, energy efficiency, and ease of use, ensuring that operators can increase productivity while reducing operational costs.

In summary, the Vulcan-Hart GR series, including the GR45, GR65, GR85F, GR65F, and GR35F, showcases the brand's commitment to quality and innovation. Each model's main features, such as high-efficiency burners, durable cooking surfaces, and user-friendly grease management systems, cater to the ever-evolving demands of the foodservice industry. Whether for high-volume restaurants or smaller operations, Vulcan-Hart griddles deliver performance, reliability, and versatility.
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