Middleby Marshall PS540 (Double) III. STEP-BY-STEP Operation, Startup Procedures Daily Startup

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SECTION 3

OPERATION

WARNING

OVEN MUST BE KEPT CLEAR OF

COMBUSTIBLES AT ALL TIMES.

III. STEP-BY-STEP OPERATION

Control Panel (On split belt ovens, two conveyor speed controls are mounted on the control panel.)

A. Startup Procedures

Daily Startup

1.Turn the BLOWER switch (Figure 3-6) to the “ON” or “I” position. This starts the main blower fan and the cooling fan. The blower circulates air through the air fingers and must stay on during the cooking or baking process.

2.Check to see if the cooling fan (see Figure 1-8) is operating when the blower switch (see Figure 3-6) is turned “ON” or “I”. The cooling fans cool the control components and burner blower motor. The cooling fan, located at the rear of the electrical control cabinet blows air into and through the cabinet. Air is exhausted through the front of the cabinet and also out the front of the oven. Refer to Daily Maintenance Section for fan intake checking procedure.

IMPORTANT NOTE

The cooling fan operates when the BLOWER switch is turned “ON” or “I”. It must operate to keep the control console below 140°F (60°C).

3.Turn the CONVEYOR switch (Figure 3-6) to the “ON” or “I” position. This starts the conveyor belt moving through the oven. Set the conveyor speed for the desired baking time. Refer to the following Procedures E, F and G.

4.Set the temperature controller to the desired baking temperature. See section on bake times to determine desired temperature.

NOTE: For complete temperature controller operation instructions refer to Step C.

5.Turn the HEAT switch (Figure 3-6) to the “ON” or “I” position. This completes a circuit to supply electric power to the electric heating system.

6.Close front window.

7.Oven will reach a baking temperature of 500°F (232°C) in approximately 10 minutes. Allow the oven to cycle for

30minutes after it has reached desired bake temperatue. The oven is now ready for baking.

Power Failure

In case of power failure, turn off all switches; open oven window and remove product. After power has been reestablished follow normal startup procedure.

B. Shutdown Procedure

1. Turn the BLOWER and HEAT switches to “OFF” or “O”.

NOTE: The blowers will remain on until the oven tempera- ture cools down to 200°F (93°C) at which time they will stop automatically.

2.Make certain that there are no products left on the conveyor inside the oven. Turn the CONVEYOR switch to “OFF” or “O”.

3.Turn off the main gas supply valve.

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Contents Owners operating Page Middleby Marshall IiiTable of Contents Section Description Model IdentificationSeries PS540 Electrical Specifications PS540 Series Oven SpecificationsThis Manual Must Be Kept For Future Reference II. Principle of AIR Flow Heat Transfer and How It WorksII. Principle of AIR Flow Air FingersPS540-Series Oven Components Locations III. Component Function FigureIII. Component Function Cooling Fan Blank Plates two sizes and an Air Finger F2. Blank PlatesSection Installation UnloadingPS540 Oven Installation Required Kits and Equipment Parts List for Series PS540 GAS Oven Installation KITModel 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 Restraint Cable Installation Model Triple Oven DimensionsElectrical Specifications User Supplied Items FigureII. Ventilation Guidelines Ventilation Hood 10. Vent HoodIV. Electric Supply for GAS- Heated Ovens 11. Typical Gas Oven Data PlateVI. Conveyor Rear Stop and END Stop Installation 13. Installing Rear and End StopsSection Operation Control FunctionsDoor Safety Switch Blower SwitchHeat Switch Temperature ControllerConveyor Measuring Conveyor SpeedSee Figures 3-4 Startup Procedures Daily Startup Power FailureShutdown Procedure III. STEP-BY-STEP OperationControl Panel Daily Startup Procedure II. Normal Operation STEP-BY-STEPSP Lock IV. Quick Reference Troubleshooting SymptomSection Maintenance Maintenance Daily ExteriorCooling Fan Crumb Pans FigureII. Maintenance Monthly Removing Conveyor From Oven For CleaningSection Maintenance Air Fingers Disassembly For Cleaning Standard FingersCleaning the Window Reassembly of Air FingersExtended Lip Tab on Outer Plate Flange Finger Manifold Section Maintenance Reinstall End Plugs Conveyor Reassembly Into Oven Checking Conveyor Belt TensionConveyor Belt Link Removal Attaching Drive Chain Replacing Conveyor BeltLower End Plug III. Maintenance Every 3 Months Cleaning the Blower/Fan MotorVentilation Electrical TerminalsChecking the Blower/Fan Belt Split-belt Conveyor Shaft Cleaning Blower Fan Shaft Bearing LubricationSection Maintenance IV. Maintenance Every 6 Months Important NoticesKEY Spare Parts KIT PS540-SERIES Electric Oven KEY Spare Parts KIT FigureSection Troubleshooting Section Troubleshooting Parts List English Oven PANELS, Window and Legs NUT, 3/8″-16 Nylon Insulated L/N ZCEnglish 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.