Middleby Marshall PS540 (Triple), PS540E, PS540 (Double) IV. Electric Supply for GAS- Heated Ovens

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III.ELECTRICAL CONNECTION INFORMATION FOR PS540-SERIES OVENS.

WARNING

Authorized supplier personnel normally accom- plish the connections for the ventilation system, electric supply, and gas supply, as arranged by the customer. Following these connections, the factory-authorized installer can perform the initial startup of the oven.

Check the oven data plate (Figure 2-11) before making any electric supply connections. Electric supply connections must agree with data on the oven data plate.

NOTE: The electric supply installation must satisfy the requirements of the appropriate statutory authority, such as the National Electrical Code (NEC), ANSI/NFPA70, (U.S.A.); the Canadian Electrical Code, CSA C22.2; the Australian Code AG601; or other applicable regulations.

A fused disconnect switch or a main circuit breaker (customer furnished) MUST be installed in the electric supply line for each oven; it is recommended that this switch/ circuit breaker have lockout/tagout capability. The electric supply connection must meet all national and local electrical code requirements. Copper is the recommended material for the electrical supply conductors.

IV. ELECTRIC SUPPLY FOR GAS- HEATED OVENS

Supply voltages for all gas ovens (except one 200 - 220V oven for export) can range from 208 to 240VAC, 1 phase. Ampere requirements for each oven can be handled via a fused disconnect switch or main circuit breaker.

NOTE: The electric supply installation must satisfy the requirements of the appropriate statutory authority, such as the National Electrical Code (NEC), ANSI/NFPA70,

SECTION 2

INSTALLATION

(U.S.A.); the Canadian Electrical Code, CSA C22.2; the Australian Code AG601; or other applicable regulations.

The supply conductors must be of the size (#14 AWG, copper) recommended. (Refer to the wiring diagrams of Section 7.) All gas oven electric supply connections are made via the electrical junction box on the rear of the oven (Figure 2-12). The power lines then connect through an oven safety switch (on the control console door frame) to the oven circuits. Opening the door interrupts electric power to the oven.

CAUTION

Before connecting incoming power to the oven, measure the voltage of each input leg to neutral. The expected voltage is approximately 120 volts. Any voltage reading exceeding 130 volts indicates that the supply has a ‘high’ leg.

CONNECTING A ‘HIGH’ LEG TO THE OVEN VOIDS ALL OVEN WARRANTIES. Connecting a ‘high’ leg to the black lead of the oven can severely damage the oven’s electrical and electronic components.

CAUTION

DO NOT CONNECT BLACK

WIRE TO HIGH LEG.

VOLTAGE OF THE BLACK AND

WHITE WIRES MUST BE NO

HIGHER THAN 130 VAC

Contact an electrician or the electric power supply com- pany to remove the ‘high’ leg from the electric supply line(s) to the oven.

In the junction box on the rear of the oven, connect one 208 - 240V supply line to the black wire and the other 208 - 240V supply line to the red wire. Connect the supply neutral line to the white wire. Connect the electric supply ground wire to the oven ground screw located in the main junction box. If necessary, have the electrician supply the ground wire. Do NOT use the wiring conduit or other piping for ground connections!

Figure 2-11. Typical Gas Oven Data Plate

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Contents Owners operating Page Iii Middleby MarshallTable of Contents Model Identification Section DescriptionThis Manual Must Be Kept For Future Reference PS540 Series Oven SpecificationsSeries PS540 Electrical Specifications Heat Transfer and How It Works II. Principle of AIR FlowAir Fingers II. Principle of AIR FlowIII. Component Function Figure PS540-Series Oven Components LocationsIII. Component Function Cooling Fan F2. Blank Plates Blank Plates two sizes and an Air FingerUnloading Section InstallationParts List for Series PS540 GAS Oven Installation KIT PS540 Oven Installation Required Kits and EquipmentModel PS540 Single Oven Option Base with Legs and Top Model PS540 Double Oven Option Base with Legs and Top Model PS540 Triple Oven Option Base with Outriggers and Top Model PS540 Single Oven Dimensions Model PS540 Double Oven Dimensions Model Triple Oven Dimensions Restraint Cable InstallationUser Supplied Items Figure Electrical Specifications10. Vent Hood II. Ventilation Guidelines Ventilation Hood11. Typical Gas Oven Data Plate IV. Electric Supply for GAS- Heated Ovens13. Installing Rear and End Stops VI. Conveyor Rear Stop and END Stop InstallationControl Functions Section OperationTemperature Controller Door Safety SwitchBlower Switch Heat SwitchSee Figures 3-4 Measuring Conveyor SpeedConveyor III. STEP-BY-STEP Operation Startup Procedures Daily StartupPower Failure Shutdown ProcedureControl Panel II. Normal Operation STEP-BY-STEP Daily Startup ProcedureSP Lock Symptom IV. Quick Reference TroubleshootingSection Maintenance Crumb Pans Figure Maintenance DailyExterior Cooling FanRemoving Conveyor From Oven For Cleaning II. Maintenance MonthlySection Maintenance Standard Fingers Air Fingers Disassembly For CleaningReassembly of Air Fingers Cleaning the WindowExtended Lip Tab on Outer Plate Flange Finger Manifold Section Maintenance Reinstall End Plugs Checking Conveyor Belt Tension Conveyor Reassembly Into OvenConveyor Belt Link Removal Lower End Plug Replacing Conveyor BeltAttaching Drive Chain Cleaning the Blower/Fan Motor III. Maintenance Every 3 MonthsChecking the Blower/Fan Belt Electrical TerminalsVentilation Blower Fan Shaft Bearing Lubrication Split-belt Conveyor Shaft CleaningSection Maintenance Important Notices IV. Maintenance Every 6 MonthsPS540-SERIES Electric Oven KEY Spare Parts KIT Figure KEY Spare Parts KITSection Troubleshooting Section Troubleshooting Parts List English NUT, 3/8″-16 Nylon Insulated L/N ZC Oven PANELS, Window and LegsEnglish Control Panel English Blower and Shroud English Conveyor English Split Belt Conveyor English Machinery Compartment Section Parts List Section Electrical Schematics Wiring Diagram, E380-480 50/60, 3PH 5W PS540ES Wiring Diagram, E380V 50/60, 3PH 5W PS540ES Wiring Diagram, E400-416V 50/60, 3PH 5W PS540ES Page Hour Service Hotline

PS540 (Triple), PS540 (Double), PS540E specifications

The Middleby Marshall PS540E, PS540 (Double), and PS540 (Triple) are advanced commercial conveyor ovens designed to deliver exceptional cooking performance for various food items. These ovens are engineered to provide consistent results while maximizing productivity, making them ideal for busy restaurants, fast-food establishments, and catering services.

One of the standout features of the PS540E is its energy-efficient design. Utilizing advanced jet-air technology, this oven circulates hot air evenly, ensuring that food is cooked thoroughly and consistently. The PS540E's energy-saving capabilities not only reduce operational costs but also minimize heat loss, which is crucial in maintaining a comfortable kitchen environment.

The PS540 series includes both double and triple options, allowing operators to choose the configuration that best fits their space and throughput needs. The double version is perfect for establishments that require high-volume cooking without sacrificing quality, while the triple model offers even greater capacity, making it highly suitable for large-scale operations. This versatility ensures that businesses can optimize their cooking process to meet demand without compromising on food quality.

Another significant aspect of the PS540 ovens is their user-friendly controls. Featuring a digital interface, operators can easily adjust cooking times and temperatures based on the specific requirements of each menu item. This level of control allows for precise cooking, ensuring that everything from pizzas to baked goods comes out perfectly every time.

The ovens are also built with durability in mind. Constructed from high-quality stainless steel, the PS540 series minimizes the risk of wear and tear over time, ensuring a long lifespan and reliable performance under continuous use. Additionally, the easy-to-clean design contributes to efficient maintenance, which is crucial in fast-paced kitchen environments.

Middleby Marshall's commitment to innovation shines through in the PS540 series, emphasizing energy efficiency, capacity, and ease of use. With their combination of advanced technology and robust construction, the PS540E, PS540 (Double), and PS540 (Triple) represent a significant investment for any foodservice operation looking to enhance its cooking capabilities while maintaining high-quality output and operational efficiency. These ovens support a wide range of menu items, making them a versatile choice for modern kitchens aiming for excellence in food preparation.