Middleby Marshall PS520 installation manual Measuring Conveyor Speed

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E. Conveyor

The on-off switch for the conveyor motor is on the control panel. Also on the control panel is the digital conveyor speed control. The digital control can be adjusted from 1-10 min. bake time (conveyor speed). Refer to Figure 3-3.

Conveyor speed is measured by the amount of time it takes for an item to go through the bake chamber of the oven.

MEASURING CONVEYOR SPEED.

See Figures 3-4 and 3-5.

To check conveyor speed, place a product item at the entrance end of baking chamber as shown. Time how long it takes for the leading edge of the item to go from the entrance end of the baking chamber to the exit end. This should be the conveyor speed shown on the conveyor speed digital control.

NOTE: In Figures 3-4 and 3-5, the oven shown is with the conveyor running right to left.

WARNING

Possibility of injury from rotating parts and electrical shock exist in this oven.

Never disassemble or clean the oven with the blower switch or any other part of the oven turned “ON” or “I”. Turn “OFF” or “O” and lockout or tagout all electrical power to the oven before attempting to clean or service this oven.

SECTION 3

OPERATION

Figure 3-3. Conveyor Speed Digital Control

Figure 3-4. Product at entrance end of baking

chamber – BEGINNING OF TIMING

Figure 3-5. Product at exit end of baking

chamber – END OF TIMING

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Contents Owners operating Page Middleby Marshall Table of Contents Model Identification Section DescriptionPS520 Series Oven Specifications Series PS520 Electrical SpecificationsThis Manual Must Be Kept For Future Reference PS520-Series Oven Components Locations II. Component Function Cooling Fan F2. Blank Plates Blank Plates two sizes and an Air FingerUnloading Section InstallationSingle and Double Stack Ovens Parts List for Series PS520 Electric Oven Installation KITModel PS520 Single Oven Dimensions Model PS520 Double Oven Dimensions Model 520 Triple Oven Dimensions Electric Supply to be Provided by Customer Circuitbreaker II. Ventilation Guidelines10. Typical Electric Oven Data Plate IV. Electric Supply for Electrically Heated OvensSection Installation Control Functions Section OperationII. Component Information and Location Figures 3-1 Conveyor Measuring Conveyor SpeedIII. STEP-BY-STEP Operation Startup Procedures Daily StartupControl Panel IV. Normal Operation STEP-BY-STEP Daily Startup ProcedureSP Lock Symptom Quick Reference TroubleshootingSection Maintenance Exterior Maintenance DailyCooling Fan Conveyor Belt FigureRemoving Conveyor From Oven For Cleaning II. Maintenance MonthlyAir Fingers Disassembly For Cleaning T1 T2 T3 B1 B2 B3 12. Standard Lower Finger Reassembly of Air FingersExtended Lip Tab on Outer Plate Flange Finger Manifold Section Maintenance Reinstall End Plugs Checking Conveyor Belt Tension Conveyor Reassembly Into OvenConveyor Belt Link Removal Attaching Drive Chain IV. Maintenance Every 6 Months III. Maintenance Every 3 MonthsImportant Notices Electrical TerminalsPS520-SERIES Electric Oven KEY Spare Parts KIT Figure KEY Spare Parts KITSection Troubleshooting Section Troubleshooting Parts List English Single Oven Exploded View English Relay Panel English Blower Assembly English Control Panel English Single Conveyor Section Parts List Section Electrical Schematics Wiring Diagram, E380-480V 50/60/1, PS520 Wiring Diagram, E230-240V CE PS520/1820S Wiring Diagram, E380-400V CE PS520/1820S Section Electrical Schematics