Middleby Marshall PS528G installation manual II. Ventilation Guidelines

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SECTION 2

INSTALLATION

UTILITY ROUGH-IN DIMENSIONS AND POSITIONING

FOR PS528-SERIES OVENS

WARNING

DO NOT USE CONDUIT OR GAS LINE FOR GROUND CONNECTION.

CAUTION

IT IS RECOMMENDED THAT THE OVEN BE PLACED UNDER A VENTILATION HOOD FOR ADEQUATE AIR SUPPLY AND VENTILATION.

ELECTRIC SUPPLY TO BE

PROVIDED BY CUSTOMER

CIRCUIT BREAKER

Separate circuit breaker with lockout/tagout electrical shutoff for each oven. Wire each oven separately.

15A Amp circuit breaker for 208-240V.

ELECTRICAL SPECIFICATIONS

DOMESTIC: 208V main blower motors, 1 Ph, 1.5 Amp draw, 50/60 Hz, 208-240V control circuit, 2 pole, 3 wire system per oven (2 hot, 1 grd).

Do NOT use conduit for ground.

or

DOMESTIC or EXPORT: 240V main blower motors, 1 Ph, 1.5 Amp draw, 50/60 Hz, 208-240V control circuit, 2 pole, 3 wire system per oven (2 hot, 1 grd).

230V main blower motors, 1 Ph, 1.5 Amp draw, 50/60 Hz, 208-240V control circuit, 2 pole, 3 wire system per oven (2 hot, 1 grd).

Do NOT use conduit for ground.

A 6 foot cord with a NEMA L6-20 plug is supplied on Domestic units.

POWER RATING

50,000 BTU/hr (14.7 kW/hr.)

SUPPLY WIRE

Supply wire size must be in accordance with the National Electrical Code (current edition) and must be in compli- ance with local codes.

SUGGESTED

If space permits, service should be located near the control console end of the oven(s) to allow convenient access to safety switches.

Figure 2-9. Typical PS528-Series Oven(s)

Installation

CAUTION

UNIT MUST HAVE AIR VENT PLATES

INSTALLED OR WARRANTY WILL BE VOID.

II. VENTILATION GUIDELINES

A mechanically driven ventilation system is required for the PS528 Series Middleby Marshall conveyorized gas ovens.

Local codes and conditions vary greatly from one area to another and must be complied with. Following are the suggested requirements for good ventilation. Please remember these are recommendations or guidelines, you may have a special condition or problem that will require the services of a ventilation engineer or specialist. Proper ventilation is the oven owner’s responsibility. Improper ventilation can inhibit oven performance.

Please Note: There are now two “stand off” ‘C’ Chan- nels and “Heat Guards” for “Double and Triple Ovens”

that must be installed in the field.

Please Note: There is now one heat guard on dou- ble units and two heat guards on triple units. See Figure 2-7.

These ‘C’ Channel brackets are installed in the vertical plane using existing screws (Item 6) to support these ‘C’ Channels using the upper and lower Key Hole openings in the ‘C’ Channels. The ‘C’ Channels are identical and once installed will allow ample amounts of air through the cooling fan mounted on the rear side of the oven by keeping the oven away from the rear wall.

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Contents Owners operating Page Iii Middleby MarshallTable of Contents Model Identification Section DescriptionThis Manual Must Be Kept For Future Reference PS528 Series Oven SpecificationsSeries PS528 Electrical Specifications PS528-Series Oven Components Locations II. Component Function Cooling Fan F2. Blank Plates Blank Plates two sizes and an Air FingerInstallation Section InstallationUnloading Parts List for Series PS528 GAS Oven Installation KITItem no QTY Description Model PS528 Single Oven Dimensions Model PS528 Double Oven Dimensions Model PS528 Triple Oven Dimensions Electric Supply to be Provided by Customer Circuit Breaker II. Ventilation Guidelines11. Junction Connection Box IV. Electric Supply for GAS Heated OvensGAS Supply 16. Gas Burner Assembly Checking the Gas Supply Inlet Pressure Section Installation Control Functions Section OperationBlower Switch Door Safety SwitchHeat Switch Temperature ControllerSee Figures 3-4 Measuring Conveyor SpeedConveyor Power Failure Startup Procedures Daily StartupShutdown Procedure III. STEP-BY-STEP OperationControl Panel IV. Normal Operation STEP-BY-STEP Daily Startup ProcedureSP Lock Symptom Quick Reference TroubleshootingSection Maintenance II. Maintenance Monthly Maintenance DailyExterior Conveyor Belt FigureQuantity Removing Conveyor From Oven For CleaningSection Maintenance T1 T2 T3 B1 B2 B3 Air Fingers Disassembly For Cleaning12. Standard Lower Finger Reassembly of Air FingersExtended 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 IV. Maintenance Every 6 Months III. Maintenance Every 3 MonthsImportant Notices Electrical TerminalsPS528-SERIES GAS Oven KEY Spare Parts KIT Figure KEY Spare Parts KITProblem Oven does not Heat Section TroubleshootingSection 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.