Middleby Cooking Systems Group PS520E IV. Normal Operation STEP-BY-STEP, Daily Start-up Procedure

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IV. NORMAL OPERATION - STEP-BY-STEP

A. Daily Start-up Procedure

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

2.Turn the “BLOWER”

switch to the “ON” or “I” position.

3. Turn the “CONVEYOR”

switch to the “ON” or “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.

6. Turn the “HEAT”

switch to the “ON” or “I” position, and wait for the “HEAT ON” light to turn on.

SECTION 3

OPERATION

7.Wait for the oven to heat to the setpoint temperature. Higher setpoint temperatures will require a longer wait. The oven cavity can reach a temperature of 5000F (2320C) in approximately 15 minutes.

8.(Optional) Press the

Temperature key to

show the Actual Tem- perature in the display, and wait for the “AC- TUAL TEMP” light to turn on. This allows you to monitor the oven tem- perature as it rises to the setpoint.

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

B. DAILY SHUTDOWN PROCEDURE

1.Turn the “HEAT”

and “BLOWER”

switches to the “OFF” or “O” position. Note the blowers will remain in operation until the oven has cooled to below 2000F (930C).

2.Make certain that there are no products left on the

conveyor inside the oven. Turn the “CONVEYOR”

switch to the “OFF” or “O” position.

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

CAUTION

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

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Contents Installation Page Iii A. OnlyTable of Contents Model Identification Section DescriptionThis Manual Must Be Kept For Future Reference PS520 Series Oven SpecificationsII. Component Function Unloading Section InstallationSingle and Double Stack Ovens Installation KITModel PS520 Single Oven Dimensions II. Ventilation 11. Junction Connection Box IV. Electric Supply for Electrically Heated OvensControl Functions Section Operation Blower Switch Door Safety Switch Heat Switch Temperature ControllerSee -4 Measuring Conveyor SpeedConveyor Power Failure Start-up Procedure Daily Start-upShutdown Procedure III. STEP-BY-STEP OperationIV. Normal Operation STEP-BY-STEP Daily Start-up ProcedureDaily Shutdown Procedure Overtemp Symptom Quick Reference TroubleshootingSection Maintenance Exterior Maintenance DailyImportant Note Conveyor Belt FigurePrecautions II. Maintenance MonthlyRemoving Conveyor From Oven For Cleaning Part#QuantitySection Maintenance Standard Fingers Air Fingers Disassembly For cleaning12. Standard Lower Finger Reassembly of Air FingersExtended Lip Tab on Outer Plate Flange Finger Manifold 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 MonthsElectrical Terminals VentilationDescription Quantity PS520-SERIES Electric Oven KEY Spare Parts KITSection Troubleshooting E208-240V 50/60/1 E380-480V 50/60/1 E230-240V CE, 1Ph E380-400V CE, 1Ph E380-400V CE, 3Ph