Middleby Marshall PS536-Series III. STEP-BY-STEP Operation, Startup Procedures Daily Startup

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SECTION 3

OPERATION

WARNING

OVEN MUST BE KEPT CLEAR OF

COMBUSTIBLES AT ALL TIMES.

III. STEP-BY-STEP OPERATION

Control Panel (On split belt ovens, two conveyor speed controls are mounted on the control panel.)

A. Startup Procedures

Daily Startup

1.Turn the BLOWER/HEAT switch (Figure 3-6) to the “ON” or “I” position. This starts the main blower fan and the cooling fan. The blower circulates air through the air fingers and must stay on during the cooking or baking process.

2.Checktoseeifthecoolingfan(seeFigure1-8)isoperating whentheBLOWER/HEATswitch(seeFigure3-6)isturned“ON” or“I”.Thecoolingfanscoolthecontrolcomponentsandburner blowermotor.Thecoolingfan,locatedattherearoftheelectrical control cabinet blows air into and through the cabinet. Air is exhaustedthroughthefrontofthecabinetandalsooutthefront of the oven. Refer to Daily Maintenance Section for fan intake checkingprocedure.

IMPORTANT NOTE

The cooling fan operates when the BLOWER/ HEAT switch is turned “ON” or “I”. It must operate to keep the control console below 140°F (60°C).

3.Turn the CONVEYOR switch (Figure 3-6) to the “ON” or “I” position. This starts the conveyor belt moving through the oven. Set the conveyor speed for the desired baking time. Refer to the following Procedures E, F and G.

4.Set the temperature controller to the desired baking temperature. See section on bake times to determine desired temperature.

NOTE: For complete temperature controller operation instructions refer to Step C.

5.Turn the HEAT switch (Figure 3-6) to the “ON” or “I” position. This completes a circuit to supply electric power to the electric heating system.

6.Close front window.

7.Oven will reach a baking temperature of 500°F (232°C) in approximately 10 minutes. Allow the oven to cycle for

30minutes after it has reached desired bake temperatue. The oven is now ready for baking.

Power Failure

In case of power failure, turn off all switches; open oven window and remove product. After power has been reestablished follow normal startup procedure.

B. Shutdown Procedure

1. Turn the BLOWER/HEAT switch to “OFF” or “O”.

NOTE: The blowers will remain on until the oven tempera- ture cools down to 200°F (93°C) at which time they will stop automatically.

2.Make certain that there are no products left on the conveyor inside the oven. Turn the CONVEYOR switch to “OFF” or “O”.

3.Open the oven window.

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Contents Owners operating Page Middleby Marshall IiiTable of Contents Section Description Model IdentificationDimensions PS536ES Series Oven SpecificationsSeries PS536ES Electrical Specifications General specifications per oven cavityII. Principle of AIR Flow Heat Transfer and How It WorksII. Principle of AIR Flow Air FingersPS536ES-Series Oven Components Locations III. Component Function FigureIII. Component Function Cooling Fan Blank Plates two sizes and an Air Finger F2. Blank PlatesSection Installation UnloadingPS536ES Oven Installation Required Kits and Equipment InstallationInstallation KIT see Figure Model PS536ES Single Oven Dimensions Model PS536ES Double Oven Dimensions Restraint Cable Installation Model PS536ES Triple Oven DimensionsInstallation II. Ventilation Guidelines IV. Electric Supply for Electrically Heated Ovens 11. Typical Electric Oven Data PlateVI. Conveyor Rear Stop and END Stop Installation 13. Installing Rear and End StopsSection Operation Control FunctionsII. Component Information and Location Figures 3-1 See Figures 3-4 Measuring Conveyor SpeedConveyor Shutdown Procedure Startup Procedures Daily StartupPower Failure III. STEP-BY-STEP OperationLocation and Description of Controls II. Normal Operation STEP-BY-STEP III. Quick Reference Digital Temperature Controller IV. Quick Reference Troubleshooting SymptomSection Maintenance Cooling Fan Maintenance DailyExterior Crumb Pans FigureII. Maintenance Monthly Section Maintenance Air Fingers Disassembly For Cleaning Standard FingersCleaning the Window Reassembly of Air FingersBack in the same way they came out Section Maintenance Reinstall End Plugs Conveyor Reassembly Into Oven Checking Conveyor Belt TensionConveyor Belt Link Removal Lower End Plug Replacing Conveyor BeltAttaching Drive Chain III. Maintenance Every 3 Months Cleaning the Blower/Fan MotorElectrical Terminals VentilationSplit-belt Conveyor Shaft Cleaning Section Maintenance IV. Maintenance Every 6 Months Important NoticesKEY Spare Parts KIT Section Troubleshooting Section Troubleshooting Parts List Parts List Oven PANELS, Window and Legs QTY DescriptionParts List English Parts List Blower and Shroud Parts List Conveyor Item QTY Conveyor DescriptionParts List Split Belt Conveyor Element Machinery Compartment Section Parts List Electrical Electrical Section Schematics Electrical Schematics Section Hour Service Hotline
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