GR SERIES GAS FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS

GAS MANIFOLD PRESSURE

ADJUSTMENT

WARNING: SHUT OFF THE GAS SUPPLY BEFORE SERVICING THE UNIT.

GAS PRESSURE (INCHES W.C.)

GAS

MANIFOLD

LINE

 

 

TYPE

 

 

 

RECOMMENDED

MIN

MAX

 

 

 

 

 

 

Natural

4

7

5

14

 

 

 

 

Propane

10

11

11

 

 

 

 

 

 

NOTE: If the incoming line pressure is less than the minimum stated, then the manifold pressure cannot be set correctly.

1.Open the door and turn gas combination valve knob/extension arm to off.

2.Remove the 1/8" NPT plug (pressure tap) on the outlet side of the valve and attach a manometer.

NOTE: Gas manifold pressure can also be measured at the pressure tap in the manifold. On Kleenscreen battery fryers only, the drain pipe may need to be removed for access.

3.Turn the gas supply on.

4.Light the pilot burner and turn the gas combination valve knob/extension arm to on.

5.Set control thermostat to call for heat and verify the main burners light.

6.Observe the manometer pressure reading and compare to the pressure chart near the end of this procedure.

A.If other appliances are connected to the same gas line, turn them all on and check manometer pressure reading again. If a pressure drop of 1/2" water column or more 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.

NON FILTER READY SHOWN

A.To increase pressure, turn the screw clockwise. To decrease pressure, turn the screw counterclockwise.

NOTE: Accurate gas pressure adjustments can only be made with the gas on and the main burners lit.

8.Set pressure as outlined in gas pressure table.

9.Once the correct pressure has been set, turn the gas combination valve knob/extension arm to off and shut off the gas supply.

10.Replace the adjustment screw cap and 1/8" NPT plug (pressure tap) on the outlet side of the valve.

11.Check fryer for proper operation.

PILOT BURNER FLAME

ADJUSTMENT

NOTE: Verify the proper gas type (natural or propane) is being supplied to the fryer before proceeding.

1.Turn control thermostat to off.

2.Light pilot burner and leave gas combination valve knob/extension arm in the pilot position. Allow pilot to burn for 3-4 minutes to stabilize flame.

A.If pilot burner is not lighting or does not remain lit when the gas combination valve knob/extension arm is released, see TROUBLESHOOTING. Wait 5 minutes between pilot burner lighting attempts for unburned gas to vent.

3.Verify the inner cone of pilot burner flame is extending approximately 1/2" beyond the outer edges of the pilot shield.

Page 13 of 24

 

F25125 (March 2003)

 

Page 12 Page 14
Page 13
Image 13
Vulcan-Hart GR35F, GR85F, GR65F, GR45F, GR25 GAS Manifold Pressure Adjustment, Pilot Burner Flame Adjustment
Page 12 Page 14

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.
Top Page Image Contents