Gas Supply

To avoid equipment, do not extend gas flue exhaust stack.

This may impair proper operation of the burner, causing malfunctions and possible negative back draft.

The gas open fryer is factory available for either natural or propane gas. Check the data plate inside the left front door of the cabinet to determine the proper gas supply requirements. The minimum supply for natural gas is 7 inches water column (1.7 kPa) (17.0 mbar), and 10 inches water column (2.49 kPa) (24.9 mbar) for propane.

To avoid personal injury and/or property damage, use only type of gas specified on data plate.

Explosion Risk

To avoid possible serious personal injury:

  • Installation must conform with local, state, and national codes, the American National Standard Z223.1/NFPA 54(the latest edition) National Fuel Gas Code, and the local municipal building codes. In Canada, the Natural Gas and Propane Installation Code is CSA B149.1 & 2 Installation Codes - Gas Burning Appliances and local codes. In Australia, in accordance with Australian Gas Authority rules AS5601.1/2-2010.

  • The fryer and its manual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 PSIG (3.45 kPa) (34.5 mbar).

  • The fryer must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 PSIG (3.45 kPa) (34.5mbar).

  • A standard one inch (2.54 cm), black steel pipe and malleable fittings should be used for gas service connections for 3 & 4 vat open fryers, and 3/4 inch (1.91 cm) for 2 vats.

  • Do not use cast iron fittings.

  • Although one inch (2.54 cm) size pipe is recommended for 3 & 4 vats and 3/4 inch (1.91 cm) for 2 vats, piping should be of adequate size and installed to provide a supply of gas sufficient to meet the maximum demand without undue loss of pressure between the meter and the open fryer. The pressure loss in the piping system should not exceed 0.3 in. water column (0.747 mbar).

Provisions should be made for moving the open fryer for cleaning and servicing. This may be accomplished by:

  1. Installing a manual gas shutoff valve and a disconnect or union.

  2. Installing a heavy-duty design CSA certified connector. In order to be able to service this appliance, which is provided with casters, a connector complying with ANSI Z21.69-CAN 6.16 or CAN 1-6.10m88 and a quick-disconnect device, complying with ANSI Z21.41or CAN 1-6.9m70, must be installed. It must also be installed with restraining means to guard against transmission of strain to the connector as specified in the appliance manufacturer’s instructions.

  3. See the illustration on the following page for the proper connection of flexible gas line and cable restraint.

NOTE: The cable restraint limits the distance the open fryer can be pulled from the wall. For cleaning and servicing the unit, the cable must be unsnapped from the open fryer and the flexible gas line disconnected. This allows better access to all sides of the open fryer. The gas line and cable restraint must be reconnected once the cleaning or servicing is complete.

Gas Piping

Distance from Wall

Correct

Wrong
Correct Quick Disconnect Distance from Wall Incorrect Quick Disconnect Distance from Wall

Minimum pull of equipment from wall permissible for accessibility to quick disconnect device.

 Avoid sharp bends and kinks when pulling equipment away from wall. Maximum pull will kink ends, even if installed properly, and reduce connector life.

Cable Restraint

For Australia or New Zealand Only: Where a model is supplied with castors and is to be connected to a fixed gas supply via a flexible hose connection, a restraining chain or wire of adequate strength shall be fixed to the appliance and be suitable to be fixed to the wall within 50 mm of each connection point. The length of the chain or wire shall not exceed 80% of the length of the hose assembly.

Secure I-bolt to building using acceptable building construction practices.

Permanently connected electric fryers with casters must be installed with flexible conduit and a cable restraint, when installed in the United States and internationally. Holes are available in the rear fryer frame for securing the cable restraint to the fryer. The cable restraint does not prevent the fryer from tipping.

Ensure the cable restraint on moveable gas fryers is installed as shown.

The flexible gas hose cannot exceed 2M in length.

Proper Cable Restraint Installation

DRYWALL CONSTRUCTION

Secure unit to building stud approximately six inches either side of service connection. Use cable restraint that is at least six inches short than flexible conduit.

Couplings Installation

Correct

Wrong
Correct Couplings on Same Plane Incorrect Offset Couplings

Couplings and hose should be installed in the same plane.

 To avoid torsional twisting and undue strain leading to product failure, do not offset couplings.

Metal Hose Installation

Correct

Wrong
Correct Metal Hose Installation Incorrect Metal Hose Installation Sharp Bend

Install the metal hose for vertical traverse as shown. Note the single, natural loop.

 To avoid straining and twisting the metal hose to a point of early failure at the coupling, do not allow a sharp bend, as shown.

Bending at Coupling

Correct

Wrong
Correct Pipe Bend at Coupling Incorrect Pipe Coupling at Bend

Maintain the minimum or larger bending diameter between the couplings.

 To avoid creating double bends leading to failure of fittings, do not lessen diameter at the couplings, as shown.

Horizontal Self-Draining Installation

If self-draining is not necessary, connect metal hose in a vertical loop.

Correct

Wrong
Correct Horizontal Self-Draining Pipe Installation Incorrect Metal Hose Horizontral Installation No Support

If self-draining is necessary, use support on lower plane as shown.

 Do not connect metal hose horizontally without support as shown.

Gas Leak Test

NOTE: Prior to turning the gas supply on, be sure the gas valve knob on the gas control valve is in the off position.

Upon initial installation, and after moving the unit, the piping and fittings should be checked for gas leaks. A simple checking method is to turn on the gas and brush all connections with a soap solution. If bubbles occur, it indicates escaping gas. In this event, the piping connection must be redone.

Fire or Explosion Risk

To avoid personal injury and/or property damage, do not use lighted match or open flame to text for gas leaks.

Gas Pressure Regulator Setting

NOTICE -

Gas pressure regulator has been set by manufacturer and should not be adjusted by user.

The gas pressure regulator on the gas control valve is factory set as follows:

  • Natural: 3.5 inches water column (0.87 kPa) (8.72 mbar).

  • Propane 10.0 inches water column (2.49 kPa) (24.9 mbar).

Measuring Gas Pressure

NOTICE -

Gas pressure regulator has been set by manufacturer and should not be adjusted by user.

Pressure Tap Hole Location

  1. Locate the pressure tap hole or fitting on the side of the gas valve. If necessary, remove the pipe plug from the valve or fitting as shown.

    Screw Pressure Tap Fitting Here

  2. If necessary, screw a pressure tap fitting into the valve or the fitting on the side of the valve as shown circled above.

    Vacuum Hose on Pressure Tap Fitting and Manometer

  3. Place one end of a vacuum hose on the pressure tap fitting and the other end on the manometer.

  4. Turn the fryer “ON”.

  5. Allow the fryer to reach full burn.

  6. The pressure reading on the manometer should be 3.5” of water column for Natural gas and 10” of water column for LP gas.

  7. Turn the fryer off.

  8. Remove the pressure tap fitting.

  9. Place the pipe plug back into the valve or the fitting on the valve.