SECTION 2

INSTALLATION

II. VENTILATION GUIDELINES

VENTILATION HOOD

A mechanically driven ventilation system is required for the PS540 Series Middleby Marshall conveyorized gas ovens. The minimum hood canopy dimensions are out- lined below.

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 re- member 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. It is recom- mended that the ventilation and duct work be checked out every three months. Grease filters in the intake of the hood may be required by local codes.

The rate of air flow exhausted through the ventilation system is generally between 1400 and 2500 cu. ft./min. (40 and 70 m3/min), but may vary depending on the oven configuration and hood design. To avoid a negative pressure condition in the kitchen area, return air must be brought back to replenish the air that was exhausted. A negative pressure in the kitchen can cause heat related problems to the oven components as if there were no ventilation at all. The best method of supplying return air is through the heating, ventilation and air conditioning system. Through they system, the air can be temperature controlled for summer and winter. Return air can be brought in directly from outside the building, but detrimen- tal affects can result from either extreme seasonal hot and cold temperature from the outdoors.

NOTE: Return air from fan driven system within the hood must not blow at opening of bake chamber or poor oven baking performance will result.

2″ (51mm)

minimum.

To allow

stacking of

ovens.

21-1/2″

(546mm)

minimum

18″

(458mm)

minimum

8″ (203mm)

minimum

1″ (25mm)

minimum

Figure 2-10. Vent Hood

18

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Middleby Marshall PS540 installation manual II. Ventilation Guidelines Ventilation Hood, Vent Hood
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PS540 specifications

The Middleby Marshall PS540 is a state-of-the-art conveyor pizza oven that has garnered significant attention in the commercial kitchen world due to its advanced features and capabilities. This oven is designed to meet the high-volume demands of pizzerias, restaurants, and food service establishments, offering efficiency without sacrificing quality.

One of the standout features of the PS540 is its innovative air impingement technology. This system utilizes powerful jets of hot air that circulate around the pizza, ensuring even cooking and browning. The result is a perfectly cooked pizza with a crispy crust and melting cheese, all while reducing cooking times significantly compared to traditional ovens. The efficiency of the PS540 allows operators to increase output, making it a valuable asset during peak hours.

Another key characteristic of the PS540 is its adjustable conveyor speed, which enables operators to customize cooking times based on the specific menu items being prepared. This flexibility ensures that various pizzas, from thick crust to thin crust, can be cooked to perfection. The conveyor design also facilitates a seamless workflow in busy kitchens, allowing for easy loading and unloading of pizzas.

In addition to its cooking capabilities, the PS540 boasts a user-friendly control panel, featuring intuitive digital controls for temperature and cooking times. This user-focused design simplifies operation, allowing staff members to easily program the oven for consistent results. Furthermore, the oven's durable construction and high-quality materials ensure reliability and longevity, minimizing maintenance needs and downtime.

Energy efficiency is a critical consideration in commercial kitchens, and the Middleby Marshall PS540 stands out in this area as well. By optimizing airflow and heat transfer, the oven reduces energy consumption while maintaining exceptional performance. This not only contributes to lowering operational costs but also aligns with sustainability efforts in food service.

Safety features, such as cool-touch exteriors and integrated ventilation systems, further enhance the PS540's appeal, ensuring that it meets the rigorous standards required in commercial kitchens. Overall, the Middleby Marshall PS540 not only elevates pizza quality but also enhances operational efficiency, making it an indispensable tool for any high-volume restaurant or pizza establishment. With its blend of technology, performance, and ease of use, the PS540 sets a new standard for conveyor pizza ovens in the culinary landscape.
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