Middleby Marshall PS360-U Gas Utility Rough-In Recommendations, Gas Meter, Gas Line

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ENGLISH

SECTION 2 - INSTALLATION

A.Gas Utility Rough-In Recommendations

The following gas system specifications are STRONGLY RECOMMENDED. Deviating from these recommendations may affect the baking performance of the oven.

Gas Meter

One or two oven cavities: 354 l/sec meter

Three or four oven cavities: 566 l/sec meter

Gas Line

DEDICATED LINE from the gas meter to the oven

50.8mm pipe for natural gas

38.1mm pipe for propane

Maximum length: 61m. Each 90° elbow equals 2.13m of pipe.

B.Connection

WARNING

Some procedures in this section may require conver- sions, readjustments, or service on the oven's gas system. Before performing these procedures, check that the main gas supply valve and the circuit breaker/fused disconnect are in the OFF ("O") position. After completing these proce- dures, perform a gas leak test before operating the oven.

CAUTION

The terms of the oven's warranty require all start-ups, conver- sions and service work to be performed by a Middleby Marshall Authorized Service Agent. The installation, start-up and changes required when changing from one gas type to another can be performed ONLY by a certified professional.

NOTE: The gas supply connection should be according to applicable ISO 228-1 or ISO 7-1 recommendations. All aspects of the gas supply connection must comply with current IEC/CEE requirements and with all applicable local, national, and inter- national codes.

Check the oven’s gas supply requirements before making the gas utility connection. Gas supply requirements are listed on the oven’s serial plate.

Check the serial plate to determine the type of gas to be used with the oven. Check that the gas type indicated matches the local supply at the installation. If the gas type on the serial plate does NOT match the local supply, directions for converting the oven for use with other gases are described in Preparation for Use with Various Gases, in this section.

Refer to the instructions in the gas hose package (included in the Installation Kit) before connecting the gas line. One gas line connection method is shown in Figure 2-15; however, compliance with the applicable standards and regulations is mandatory.

Figure 2-15 - Flexible Gas Hose Installation

To Gas

Supply Pipe

Appliance

Connection/Male

Nipple

90°

Full-Flow Gas

Elbow

Shutoff Valve

Flexible

Gas Hose

Figure 2-16 - Gas Burner and Piping Assembly

Supply (inlet)

Orifice

pressure tap

(manifold)

Multifunction Gas Valve

pressure tap

Burner Blower

High Flame

Solenoid Valve

Governor

 

disabled for

 

liquid

 

propane (LP)

 

operation

 

Governor

Multifunction

enabled for

Gas Valve

natural gas

 

operation

 

Gas Burner

Pilot Line

Low Flame

Bypass Line

Union

Pilot pressure tap

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Contents Rev. B V1 7/01 PS36040kW 50kW 2x40kW 2x50kW 26kW 2x26kWFor Your Safety EnglishTable of Contents III. Oven Specifications Description EnglishOven Uses Installation Electrical specifications per oven cavityGas orifice and pressure specifications per oven cavity Installation KIT Installation kit components one kit required per cavityAdditional installation kit components for gas ovens 710II. Ventilation System RequirementsRecommendations Other ventilation concernsIII. Assembly IV. Thermocouple InstallationConveyor Installation Removing the Conveyor Drive SprocketVI. Final Assembly 11 Conveyor and Master Link OrientationVII. Electrical Supply VIII. GAS SupplyAdditional Information Gas Ovens Additional Information Electric OvensGas Utility Rough-In Recommendations Gas MeterGas Line Preparation for Use with Various Gases Replacing the Gas Orifices if so requiredAdjusting the Orifice Manifold Pressure and Heat Input Volumetric MethodChecking the Gas Supply Inlet Pressure Orifice Manifold Pressure MethodConveyor Switch Turns the conveyor drive motor on and off Reset Switch Gas ovens only. IlluminatesOperation Location and Description of ControlsII. Normal Operation STEP-BY-STEP III. Quick Reference Digital Temperature Controller IV. Quick Reference Troubleshooting SymptomMaintenance Maintenance DailyII. Maintenance Monthly Removing the ConveyorIII. Maintenance Every 3 Months Split Belt Disassembly and CleaningIV. Maintenance Every 6 Months 10 Key Spare Parts KitDiagrams 400V, 50 Hz, 1 PhGas Oven 230V, 50 Hz, 1 Ph