Middleby Marshall PS520G IV. Normal Operation STEP-BY-STEP, Daily Startup Procedure

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SECTION 3

OPERATION

IV. NORMAL OPERATION - STEP-BY-STEP

A.Daily Startup Procedure

1.Check that the circuit breaker/fused disconnect is in the on position.

7.Wait for the oven to heat to the setpoint temperature. Higher setpoint temperatures will require a longer wait. The oven can reach a temperature of 500°F (232°C) in approximately 15 minutes.

8. (Optional) Press the Tem-

perature ( ) key to show

2.Turn the "BLOWER"

() switch to the “ON” ("I") position.

3.Turn the "CONVEYOR" () switch to the “ON” ("I") position.

4.If necessary, adjust the conveyor speed setting

by pressing the or pushbuttons on the con- veyor speed controller to change the displayed bake time.

5.Adjust the temperature controller to a desired set temperature, if neces- sary.

Press the Set Point and Unlock keys at the same time. Wait for the "SET PT" light to turn on.

Press the Up Arrow and Down Arrow Keys as necessary to adjust the set- point.

or

wait

+ for

or

the Actual Temperature

wait

in the display, and wait

for

for the "ACTUAL TEMP"

 

light to turn on. This al-

 

lows you to monitor the

 

oven temperature as it

 

rises to the setpoint.

 

9.Allow the oven to preheat for 10 minutes after it has reached the set point temperature.

B.DAILYSHUTDOWNPROCEDURE

1. Turn the "HEAT" (

) and

+

"BLOWER" (

) swit-

ches to the "OFF" ("O")

 

position.

Note that the

 

blowers will remain in op-

 

eration until the oven has

 

cooled to

below

200°F

 

(93°C).

 

 

 

2. Make certain that there are no products left on the conveyor inside the oven. Turn the "CON- VEYOR" () switch to the "OFF" ("O") position.

3.After the oven has cooled and the blowers have turned to the “OFF” or “O” position, switch the circuit breaker/fuse disconnect to the “OFF” or “O” position.

IMPORTANT

On gas ovens, if the "HEAT ON" light will not illuminate, OR if the oven does not heat, the gas burner may not have lit. Turn the "HEAT" (), "BLOWER" (), and "CON- VEYOR" () switches to the "OFF" ("O") position. Wait

6. Turn the "HEAT" ( ) switch to the "ON" ("I") position, and wait for the "HEAT ON" light to turn on.

wait for

for AT LEAST FIVE MINUTES before restarting the oven. Then, repeat the Daily Startup procedure.

CAUTION

In case of power failure, turn all switches to the “OFF” ("O") position and remove the product. After the power has been restored, perform the normal startup procedure. IF THE OVEN WAS SWITCHED OFF FOR LESS THAN 5 MINUTES, WAIT FOR AT LEAST FIVE MINUTES BEFORE RESTARTING THE OVEN.

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Contents Owners operating Page Middleby Marshall IiiTable of Contents Section Description Model IdentificationThis Manual Must Be Kept For Future Reference PS520 Series Oven SpecificationsSeries PS520 Electrical Specifications PS520-Series Oven Components Locations II. Component Function Cooling Fan Blank Plates two sizes and an Air Finger F2. Blank PlatesSection Installation Parts List for Series PS520 GAS Oven Installation KIT UnloadingParts List for Series PS520 Gas Oven Model PS520 Single Oven Dimensions Model PS520 Double Oven Dimensions Model 520 Triple Oven Dimensions II. Ventilation Guidelines Electric Supply to be Provided by Customer Circuit BreakerIV. Electric Supply for GAS Heated Ovens 11. Junction Connection BoxGAS Supply 13 Gas Control Valve Section Operation Control FunctionsHeat Switch Door Safety SwitchBlower Switch Temperature ControllerSee Figures 3-4 Measuring Conveyor SpeedConveyor Shutdown Procedure Startup Procedures Daily StartupPower Failure III. STEP-BY-STEP OperationControl Panel Daily Startup Procedure IV. Normal Operation STEP-BY-STEPSP Lock Quick Reference Troubleshooting SymptomSection Maintenance Cooling Fan Maintenance DailyExterior Conveyor Belt FigureII. Maintenance Monthly Removing Conveyor From Oven For CleaningSection Maintenance Air Fingers Disassembly For Cleaning T1 T2 T3 B1 B2 B3Reassembly of Air Fingers 12. Standard Lower FingerExtended Lip Tab on Outer Plate Flange Finger Manifold Section Maintenance Reinstall End Plugs Conveyor Reassembly Into Oven Checking Conveyor Belt TensionConveyor Belt Link Removal Attaching Drive Chain Important Notices III. Maintenance Every 3 MonthsIV. Maintenance Every 6 Months Electrical TerminalsKEY Spare Parts KIT PS520-SERIES GAS Oven KEY Spare Parts KIT FigureSection Troubleshooting Section Troubleshooting Schematics Section Section Electrical Schematics Section Electrical Schematics

PS520G specifications

The Middleby Marshall PS520G represents a significant leap forward in the world of commercial cooking equipment, specifically designed to meet the demands of high-volume foodservice operations. This innovative conveyor oven is engineered for efficiency, speed, and high-quality results, making it a favorite among pizza parlors, restaurants, and fast-food businesses.

One of the standout features of the PS520G is its gas-powered operation. The use of natural gas or propane not only enhances cooking speed but also contributes to lower operational costs when compared to electric models. This advantage allows establishments to serve more customers in less time, thereby maximizing revenue.

The PS520G is equipped with advanced technology that ensures consistent cooking results. Its patented Air Impingement technology circulates heated air within the cooking chamber, ensuring that every item receives even heat distribution. This technology is particularly beneficial for achieving perfectly cooked pizzas, breads, and other baked goods. The ability to cook food quickly while maintaining moisture and flavor is a hallmark of this model.

Another significant characteristic of the PS520G is its versatile cooking capabilities. The unit features adjustable conveyor speed, allowing operators to customize cooking times according to the type of food being prepared. This flexibility is essential in a bustling kitchen environment where different menu items require distinct cooking times.

The construction of the PS520G is robust and designed for durability, with stainless steel exteriors that are not only attractive but also easy to clean. Additionally, the oven's efficient design includes a high-capacity cooking chamber that can accommodate larger items, making it suitable for various food types.

A critical aspect of any commercial kitchen equipment is ease of use, and the PS520G shines in this area as well. The user-friendly digital controls allow for precise temperature settings and monitoring, enabling kitchen staff to maintain high standards in cooking. Moreover, the self-cleaning feature simplifies maintenance, ensuring the oven operates at peak performance with minimal downtime.

In summary, the Middleby Marshall PS520G conveyor oven embodies a perfect blend of technology, efficiency, and versatility. Its gas-powered operation, advanced cooking technologies, and durable construction make it an indispensable asset for any high-volume foodservice operation, driving both productivity and quality in food preparation. With the PS520G, businesses can ensure they are well-equipped to meet the culinary demands of their customers, providing fast and delicious meals consistently.