SECTION 3

OPERATION

II.COMPONENT INFORMATION AND LOCATION (Figures 3-1 and 3-2)

A. Door Safety Switch

The Door Safety Switch is located at the lower right side of control panel opening. Opening the control panel door permits this switch to open, disconnecting power to all electrical controls.

CAUTION

Do NOT touch the wires going to this safety switch. Current is always present.

B. Blower Switch

The blower switch has two positions. The switch must be “ON” or “I” for the main blowers to come on and permit the oven to run. The fan circulates the air throughout the oven and must stay on during baking and during the cool down cycle above 200°F (93°C) to prevent blower bearing damage. To protect the blower motor and bearings a thermostatic override is built into the oven.

If the temperature inside the oven is over 180°F (82°C) the main blower will continue to run after the blower switch is turned to the “OFF” or “O” position.

C. Heat Switch

The “Heat Switch” allows the burner to activate. Activation is determined by the settings on the Digital Temperature Controller.

D. Temperature Controller

The temperature controller is a solid-state, PID type to maintain the operator-set temperature. The temperature controller continuously monitors the oven temperature and turns on the modulating solid state relay controller. The heat is on for the time required to maintain a constant oven temperature.

The temperature controller contains a low-limit switch which allows the oven to cool down to 200°F (93°C) before shutting off the blower. A high-limit indication (ALM 1) will appear on the display if the oven reaches 650°F (343°C).

Figure 3-2. Interior View of Control Console

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Middleby Marshall PS528G installation manual Door Safety Switch, Blower Switch, Heat Switch, Temperature Controller
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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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