Middleby Marshall PS528G installation manual Maintenance Daily, II. Maintenance Monthly, Exterior

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SECTION 4

MAINTENANCE

I. MAINTENANCE - DAILY

A. Exterior

Everyday you should clean the outside of the oven with a soft cloth and mild detergent.

WARNING

Never use a water hose or pressurized steam cleaning equipment when cleaning the oven.

B. Cooling Fan

1.  ONE COOLING FAN GRILLE AT THE REAR OF THE OVEN MUST BE CLEANED DAILY - Clean grille with a stiff nylon type brush.

2.   Check the air intake of the cooling fan daily. The best time to check is right after starting the oven.

IMPORTANT NOTE

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

D. Crumb Pans (Figure 4-2)

WARNING

Crumb pan is extremely hot while oven is operating. Allow oven to cool before removing crumb pan.

When the oven is cool remove and clean the crumb pan at each end of the oven. Each crumb pan can be removed by sliding it out, as shown in Figure 4-2. Reinstall the crumb pans after cleaning.

II. MAINTENANCE - MONTHLY

WARNING

IF FAN BLADE IS NOT ROTATING, BROKEN, OR FAN ASSEMBLY IS MISSING FROM MAIN BLOWER MOTOR SHAFT, DO NOT OPERATE OVEN. REPLACE COOLING FAN BLADE BEFORE OPERATING OVEN. Serious damage could be done to the burner blower motor and/ or solid-state electrical components if oven is operated while cooling fan is not running or vent grille is plugged.

3.  Using a stiff nylon brush clean control compartment vent grille.

C. Conveyor Belt (Figure 4-2)

Everyday, just after starting the oven, stand at the un- loading end of the conveyor, and with a brush, remove food particles (crumbs, etc.) clinging to the conveyor belt, brushing them into the crumb pan.

Figure 4-1. Oven Cooling Fans

Figure 4-2. Conveyor Belt and

Crumb Pan Cleaning

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Contents Owners operating Page Middleby Marshall IiiTable of Contents Section Description Model IdentificationThis Manual Must Be Kept For Future Reference PS528 Series Oven SpecificationsSeries PS528 Electrical Specifications PS528-Series Oven Components Locations II. Component Function Cooling Fan Blank Plates two sizes and an Air Finger F2. Blank PlatesSection Installation InstallationParts List for Series PS528 GAS Oven Installation KIT UnloadingItem no QTY Description Model PS528 Single Oven Dimensions Model PS528 Double Oven Dimensions Model PS528 Triple Oven Dimensions II. Ventilation Guidelines Electric Supply to be Provided by Customer Circuit BreakerIV. Electric Supply for GAS Heated Ovens 11. Junction Connection BoxGAS Supply 16. Gas Burner Assembly Checking the Gas Supply Inlet Pressure Section Installation Section Operation Control FunctionsDoor Safety Switch Blower SwitchHeat Switch Temperature ControllerSee Figures 3-4 Measuring Conveyor SpeedConveyor Startup Procedures Daily Startup Power FailureShutdown Procedure III. STEP-BY-STEP OperationControl Panel Daily Startup Procedure IV. Normal Operation STEP-BY-STEPSP Lock Quick Reference Troubleshooting SymptomSection Maintenance Maintenance Daily II. Maintenance MonthlyExterior Conveyor Belt FigureRemoving Conveyor From Oven For Cleaning QuantitySection Maintenance Air Fingers Disassembly For Cleaning T1 T2 T3 B1 B2 B3Reassembly of Air Fingers 12. Standard Lower FingerExtended Lip Tab on Outer Plate Flange Finger Manifold Incorrect Too Reinstall End Plugs Conveyor Belt Link Removal Conveyor Reassembly Into OvenChecking Conveyor Belt Tension Remove the outside master links on the right and left Attaching Drive Chain III. Maintenance Every 3 Months IV. Maintenance Every 6 MonthsImportant Notices Electrical TerminalsKEY Spare Parts KIT PS528-SERIES GAS Oven KEY Spare Parts KIT FigureSection Troubleshooting Problem Oven does not HeatSection Troubleshooting Section Electrical Schematics
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PS528G specifications

The Middleby Marshall PS528G is a cutting-edge gas-fired conveyor oven, designed to revolutionize the way food is cooked in high-demand commercial kitchen environments. Renowned for its exceptional performance, this oven combines advanced technology with user-friendly features, making it a preferred choice for restaurants, pizzerias, and other food service operations.

One of the standout features of the PS528G is its impressive cooking capacity. With a spacious cooking chamber and a conveyor belt that ensures uniform movement of food items, this oven can handle a variety of menu items all at once. This is particularly beneficial for establishments with high volume requirements, as the efficient design allows for consistent results and quick turnaround times.

The PS528G utilizes advanced jet air technology, which circulates hot air throughout the cooking chamber. This ensures even cooking and browning of food, eliminating cold spots and ensuring that every item comes out perfectly cooked. The enhanced air flow not only improves cooking quality but also reduces the cooking time compared to traditional ovens.

Energy efficiency is another highlight of the Middleby Marshall PS528G. The gas-fired system is engineered to optimize fuel consumption, making it both environmentally friendly and cost-effective. Operators can expect significantly lower energy bills without compromising on cooking performance, making this oven an ideal investment for busy kitchens.

Moreover, the PS528G features a user-friendly digital control panel. This intuitive interface allows operators to easily set cooking temperatures, adjust conveyor speeds, and monitor cooking cycles with precision. The programmable features enable users to save recipes, ensuring consistency across batches and streamlining kitchen operations.

Safety is also a top priority with the PS528G. The oven is equipped with safety features such as a reliable ignition system and temperature controls that prevent overheating, reducing the risk of accidents in busy kitchens.

In conclusion, the Middleby Marshall PS528G is a powerhouse in the realm of commercial cooking. Its combination of high cooking capacity, advanced jet air technology, energy efficiency, user-friendly controls, and safety features make it an essential tool for any food service operation that demands high-quality cooking in a fast-paced environment. As the culinary landscape continues to evolve, the PS528G stands as a testament to innovation and reliability in the kitchen.
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