Middleby Marshall PS540G III. Component Function, Conveyor Motor and Conveyor Belt, Blower Fan

Page 10

SECTION 1

DESCRIPTION

III. COMPONENT FUNCTION

A. Conveyor Motor and Conveyor Belt

The conveyor belt is driven by a variable-speed electric motor (Figure 1-7) operating through a gear reducer. The motor speed is controlled by a digital control. The stain- less-steel wire belt can travel in either direction at variable rates ranging from 3 minutes to 30 minutes; this is the time that a product can take to pass through the oven.

B. Blower Fan

The blower fan is located at the rear of the oven. This blower forces heated air through the air fingers. The BLOWER switch must be set to “ON” or “I” for oven warmup and baking.

C. Gas Burner

Turning the HEAT switch to “1” activates the oven purge circuit. After approximately 30 seconds, the solid-state ignition control lights a pilot burner by an electric spark. This system permits the main gas valve to open only after the lighting of the pilot burner is detected by the flame sensor.

If the pilot flame does not light or a loss of flame occurs, the main gas valve closes.

The main burner gas is extinguished when the HEAT switch is set to “OFF” or “O”.

D. Window

A window on the front of the oven permits viewing the items being baked and provides access to the oven for items that do not require full baking time, such as sandwiches, cookies, small items, or cheese-melting processes.

Left Control Box

Right Control Box

Figure 1-7. Machinery Compartment Components

6

Image 10
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 FigureBlower Fan III. Component FunctionConveyor Motor and Conveyor Belt Gas BurnerCooling Fan Cooling Fan See FigureAir Fingers and Blank Plates See Figure F1. Air Fingers 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 DimensionsHood for Adequate AIR Supply and Ventilation User Supplied Items FigureII. Ventilation Guidelines Ventilation Capture Test Ventilation HoodIV. Electric Supply for GAS- Heated Ovens 11. Typical Gas Oven Data PlateGAS Supply for GAS Heated Ovens 12. Junction Connection Box13. Flexible Gas Hose Installation VI. Conveyor Rear Stop and END Stop Installation Adjusting the Minimum Pressure SettingSection Operation Control FunctionsHeat Switch Door Safety SwitchBlower Switch Temperature ControllerConveyor Measuring Conveyor SpeedSee Figures 3-4 Shutdown Procedure Startup Procedures Initial StartupPower Failure III. STEP-BY-STEP OperationControl Panel Daily Startup Procedure II. Normal Operation STEP-BY-STEPSP Lock IV. Quick Reference Troubleshooting SymptomSection Maintenance Crumb Pans Figure ExteriorCooling Fan WindowII. Maintenance Monthly Removing Conveyor From Oven For CleaningSection Maintenance Air Fingers Disassembly For Cleaning T1 T2 T3 T4 B1 B2 B3 B4Cleaning 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 Replacing Conveyor Belt Attaching Drive ChainIII. 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 KEY Spare Parts KIT Section Troubleshooting Section Troubleshooting Parts List English Oven PANELS, Window and Legs Section Parts List Control Panel English Blower and Shroud English Conveyor English Split Belt Conveyor English GAS Burner and Piping Assembly English Machinery Compartment Section Parts List Section Electrical Schematics Section Electrical Schematics Section Electrical Schematics Section Electrical Schematics Page Hour Service Hotline

PS540G specifications

The Middleby Marshall PS540G is a cutting-edge conveyor oven designed to meet the diverse cooking needs of commercial kitchens and food service operations. Known for its efficiency and reliability, the PS540G combines advanced technology with innovative design to deliver consistent cooking results while optimizing energy use.

One of the standout features of the PS540G is its high-efficiency impingement cooking system. This technology utilizes powerful jets of hot air that quickly and evenly circulate around the food, ensuring thorough cooking while significantly reducing cooking times. This results in faster service and improved throughput, making it an excellent choice for busy restaurants, cafes, and catering operations.

The oven is equipped with a unique dual-fuel option, allowing operators to choose between natural gas or propane. This flexibility helps businesses adapt to their specific requirements and preferences, providing both cost and energy-saving benefits. Additionally, the PS540G is designed with a fully insulated structure, minimizing heat loss and further enhancing energy efficiency.

Another key characteristic of the Middleby Marshall PS540G is its user-friendly control interface. The digital controls offer precise temperature settings and adjustable conveyor speeds, allowing chefs to customize the cooking process for various food items. This versatility ensures optimal results, whether baking pizzas, roasting vegetables, or toasting sandwiches.

The spacious cooking chamber of the PS540G is designed with a wide conveyor belt that accommodates large batches of food, making it particularly suitable for high-volume establishments. The oven's compact footprint allows it to fit into tight kitchen spaces without sacrificing cooking capacity.

Safety is also a priority in the design of the PS540G. The oven features automatic shut-off mechanisms and cool-to-the-touch exterior surfaces, allowing for safer operations. Additionally, the durable construction with stainless steel components ensures longevity and ease of maintenance.

In conclusion, the Middleby Marshall PS540G is a state-of-the-art conveyor oven that offers outstanding performance for commercial kitchens. With its advanced impingement cooking technology, flexible dual-fuel options, user-friendly controls, and robust safety features, the PS540G stands out as an essential tool for any food service operation looking to enhance efficiency and food quality.