Middleby Marshall PS640 installation manual II. Normal Operation STEP-BY-STEP

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II. NORMAL OPERATION - STEP-BY-STEP-

A. Daily Startup Procedure

1.Check that the circuit breaker/fused disconnect is in the On position. Check that the window is closed. The touch panel display should be lit.

2.Adjust the conveyor to the desired bake time.

3.Press the temperature button to display right and left hand oven settings. Set temperatures as desired.

4.Press the ON button to activate the oven. The conveyor will not run, until the oven temperature has reached the set points.

B. Daily Shutdown Procedure

1.Make certain there are no products left on the conveyor in the oven.

2.Press the ON square to turn the oven off.

3.Open the window to allow the oven to cool faster.

4.After the oven has cooled and the blowers have turned off, the circuit breaker/fused disconnect may be turned off.

Quick Reference – Touch Screen Controller

A. Main Screen

1.On/Off button - Used to turn oven On and Off.

2.Conveyor speed - Pressing on either the minutes or seconds allows a new value to be input for the conveyor speed. Split belt ovens have two inputs (front and rear belts).

3.Oven temperature - Pressing on the set temperature shifts the user to the oven temperature set point/indicator screen.

4.Energy level indicators - Indicators to either side of the screen indicate the energy input to that side of the oven.

5.Message bar - Indicates various messages pertaining to current oven conditions.

B. Oven Temperature/Set Point/Indicator Screen

1.Right actual temperature - Indicates current average tem- perature of the right side of the oven.

2.Left actual temperature - Indicates current average tem- perature of the left side of the oven.

NOTE: Right to Left temperature settings should not exceed a differential of 20 °F.

3.Right Set point temperature - Pressing on this value allows the user to adjust the set point for the right side of the oven.

4.Left Set point temperature - Pressing on this value allows the user to adjust the set point for the left side of the oven.

5.Exit - Returns to the main screen.

C. Energy Modes

Energy Mode One - This mode is automatic, and starts (bake time +1 minute) after the last product has entered the oven. In this mode, the main oven blowers will lower to 1500 RPM, while the oven maintains temperature and belt speed.

Energy Mode Two - The oven lowers its set point by 100° F, and stops the belt. Anytime that the oven is more than 10 degrees over its set point, the burners will completely shut off, allowing the oven to cool and the burners are on minimum flow. The main blowers will continue to run at 1500 RPM in this mode. Placing any article on the input belt will cause normal operation of the oven to resume, and bring the set point back to its original level. The belt will resume operation once both sides of the oven are within 5° F of the set point.

Energy Mode Three - The oven will turn off completely and shut off the circulation blowers once the oven temperature has dropped below 200° F. Placing any article on the input belt will cause normal operation of the oven to resume, and bring the set point back to its original level. The belt will resume operation once both sides of the over are within 5° F of the set point.

Energy Mode Four - This is a complete oven shut down. Placing anything on the belt will NOT return the oven to Operation. The ON button on the main screen has to be pressed to restart the oven.

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Contents Owners Operating and Installation Manual Retain this Manual for Future Reference Middleby Marshall Table of Contents Oven Uses DescriptionTriple Ove Oven SpecificationsInstallation Parts List for Series PS640 GAS Oven Installation KIT PS640 24″ Oven Installation Required Kits and EquipmentKit ″ Legs Casters& Top Casters & Top Kit N61033 N59720 N59725 PS640 32″ Oven Installation Required Kits and EquipmentItem no QTY Description Hardware BA G ″-16 × 1 HEX SCREW, SST Item no QTY Description Quad Outrigger Weldment A27727 83 -16x1-1/4 HEX Bolt A21924 Requirements III. Ventilation SystemRecommendations Other ventilation concernsTop Panel and Base Pad Assembly IV. AssemblyStacking Restraint Cable InstallationDo not Overtighten the Conveyor Belt Conveyor InstallationSwitching Photo Detector Resetting Direction JumperConveyor Belt Reversal Reversing the Conveyor BeltVII. GAS Supply ConnectionConnection Adjusting the Maximum Pressure SettingGas Conversion PS640 Propane ConversionMaintenance Adjusting the Minimum Pressure SettingCheckout Location and Description of Controls II. Normal Operation STEP-BY-STEP Screen Alerts III. Quick Reference TroubleshootingMaintenance Daily MaintenanceTop Row Bottom Row II. Maintenance MonthlySplit Belt Disassembly and Cleaning III. Maintenance Every 3 MonthsBlower Belt IV. Maintenance Every 6 MonthsKEY Spare Parts Available separately. See Figure KEY Spare Parts PS640 GASWiring Diagram Page Page

PS640 specifications

The Middleby Marshall PS640 is an industry-leading conveyor oven designed to meet the demands of commercial kitchens, particularly in pizza and other high-volume food applications. This oven combines advanced technologies with robust design, ensuring that users achieve consistent, high-quality results while optimizing operational efficiency.

One of the standout features of the PS640 is its unique design, which includes a patented jet impingement technology. This technology significantly enhances the cooking efficiency by using high-velocity hot air to cook food evenly and quickly. This not only reduces cooking times but also helps retain moisture and flavor, resulting in a superior product that delights customers.

Another key characteristic of the PS640 is its dual-mode operation. The oven can be configured for either high-speed cooking or traditional baking modes, making it versatile enough to handle a wide variety of menu items. This flexibility allows operators to maximize their kitchen space and adapt to changing customer demands effortlessly.

The PS640 also boasts a fully insulated cooking chamber, which ensures consistent cooking temperatures and minimizes energy loss. This thermal efficiency not only contributes to food quality but also helps reduce operational costs, making it an economically viable option for restaurants and foodservice operations.

Further enhancing its user-friendliness, the PS640 features an intuitive digital control panel. This allows staff to easily set cooking times and temperatures, monitor performance, and make adjustments as necessary. Additionally, the oven includes programmable cooking settings, making it easy to replicate popular dishes quickly and ensuring consistency across multiple shifts.

Durability is another hallmark of the PS640. Constructed with high-quality materials, this oven is built to withstand the rigors of a busy kitchen environment. Its stainless-steel exterior not only gives it a sleek look but also makes it easy to clean and maintain.

In summary, the Middleby Marshall PS640 is a state-of-the-art conveyor oven that excels in speed, efficiency, and versatility. Its advanced technologies, user-friendly features, and robust construction make it an ideal choice for foodservice operators looking to elevate their cooking capabilities and enhance their menu offerings. Whether for quick-service restaurants, pizzerias, or catering operations, the PS640 delivers outstanding results with every use, ensuring satisfied customers and a thriving business.