Middleby Marshall PS724E installation manual II. Component Function Figure

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SECTION 1

DESCRIPTION

II. COMPONENT FUNCTION (Figure 1-4)

A. Conveyor Motor and Conveyor Belt

The conveyor belt is driven by a variable-speed electric motor (Figure 1-5) operating through a gear reducer. The motor speed is controlled by a digital control. The stainless-steel wire belt can travel in either direction at variable rates ranging from 30 seconds to 12 minutes; this is the time that a product can take to pass through the oven.

B. Blower Fan

The circulation air blower drive motors (2) are located in the right side control box. The blowers force heated air through the air fingers. The MAIN / BLOWER switch must be set to “ON” or “I” for oven warmup and baking.

C. Cooling Fan — See Figure 1-5 and Figure 1-6

Cooling fans are located at the rear of each (left and right) control box. Cooling air is drawn into each control box and blown across the control components and circulating blower bearings and exits the oven front and rear louvers.

IMPORTANT

THE CONTROL BOX DOORS MUST BE CLOSED WHILE THE OVEN IS HOT OR HEATING IN ORDER TO KEEP THE COMPONENTS AND BEARINGS COOL.

D. Air Fingers - See Figure 1-7

An Air Finger Assembly is made up of three parts:

1.Outer Plate -The Outer Plate is the removable covering with tapered holes, which direct the air stream onto the product being baked.

2.Inner Plate-The perforated Inner Plate is vital in forming the unique air jets. It must be assembled into the manifold with its holes aligned with the holes of the outer plate.

3.Manifold - The Manifold is the assembly which slides on tracks into the oven plenum.

#OOLINGL&AN

"LOWER -OTOR

Blower Assembly

Conveyor

Drive Motor

Right Control Box

Figure 1-5. Machinery Compartment

Components

4

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Contents Owners operating Page Middleby Marshall IiiTable of Contents Section Description PS724 Series Oven Specifications PS724-Series Oven Components Locations II. Component Function Figure Cooling Fan Air Finger Section Installation Section Installation Unloading03  /6%. .34!,,!4 152%$ +434!.$.%150-%.4 Model PS724 Single Oven Dimensions Model PS724 Double Oven Dimensions Model PS724 Triple Oven Dimensions II. Ventilation Guidelines Electric Supply to be Provided by CustomerIV. Electric Supply 11. Junction Connection BoxSection Operation Control FunctionsDoor Safety Switch Blower SwitchHeat / Conveyor 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 ExteriorCooling Fan Conveyor Belt FigureII. Maintenance Monthly Removing Conveyor From Oven For CleaningOosen 4WOO3CREWS and 2EMOVEE#HAIN3PROCKET #OVER Air Fingers Disassembly For Cleaning Standard FingersReassembly of Air Fingers 11. Standard Lower FingerCenter Spacer Extended Lip Flange Finger Manifold Reinstall End Plugs Conveyor Reassembly Into Oven Checking Conveyor Belt TensionConveyor Belt Link Removal Push and hold conveyor end down to reinstall the chain Attaching Drive ChainIII. Maintenance 3 and 6 Month Important NoticesKEY Spare Parts KIT PS724-SERIES Electric Oven KEY Spare Parts KITSection Maintenance Section Troubleshooting Section Troubleshooting Section Electrical Schematics Wiring Diagram, E380V 17.44 kW, PS724E Wiring Diagram, E380V 17.4 kW, PS724E CE Wiring Diagram, 400-416V 4 kW, PS724E7 Section Electrical Schematics

PS724E specifications

The Middleby Marshall PS724E is a revolutionary conveyor oven designed to meet the high demands of commercial kitchens while ensuring superior cooking quality and efficiency. Its innovative design incorporates advanced technologies that deliver exceptional performance, making it a top choice for restaurants, pizzerias, and other food service environments.

One of the main features of the PS724E is its unique dual conveyor system that allows for even cooking. The oven utilizes a patented air impingement technology, which pushes heated air onto the food items for faster cooking times and consistent results. This technology ensures that every dish, from pizzas to casseroles, is cooked evenly and effectively. The conveyor belt operates smoothly, allowing chefs to load and unload products easily without compromising speed.

The PS724E is equipped with an advanced digital control system that provides precise temperature settings and cooking times. This system allows operators to program specific cooking profiles for different menu items, ensuring consistent quality while reducing the risk of human error. With easy-to-read displays, staff can monitor cooking status at a glance, streamlining the workflow in busy kitchens.

Another defining characteristic of the PS724E is its energy efficiency. This model is designed to consume less energy than traditional ovens, making it a sustainable choice for businesses looking to reduce their operating costs. The insulation and airflow technologies used in this oven not only maintain high cooking temperatures but also minimize heat loss, contributing to its low energy consumption.

The oven's construction is robust and durable, built to withstand the rigors of a busy kitchen environment. Its stainless steel exterior not only adds a sleek aesthetic appeal but also ensures easy cleaning and maintenance. The ergonomic design of the conveyor makes it user-friendly, promoting safety while enhancing the overall cooking experience.

In summary, the Middleby Marshall PS724E is an innovative conveyor oven that combines advanced cooking technology, energy efficiency, and user-friendly features. With its dual conveyor system, digital control capabilities, and durable construction, it represents a significant advancement in commercial cooking equipment. This oven is perfectly suited for high-volume operations, offering reliability and consistency while helping to elevate food quality to new heights. Whether used for baking pizzas, roasting meats, or crafting baked goods, the PS724E is an invaluable asset for any modern kitchen.