Middleby Marshall PS528E IV. Normal Operation STEP-BY-STEP, Daily Startup Procedure

Page 24

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.

2. Turn the "BLOWER"

() switch to the “ON” ("I") position.

3.Turn the "CONVEYOR"

() switch to the “ON” ("I") position.

8.(Optional) Press the Tem- perature () key to show the Actual Temperature in the display, and wait for the "ACTUAL TEMP" light to turn on. This allows you to monitor the oven temperature as it rises to the setpoint.

wait

for

4.If necessary, adjust the

conveyor speed

setting

 

by pressing the

or

or

pushbuttons on the

conveyor speed controller

 

to change the displayed

 

bake time.

 

 

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" ("O") posi-

 

tion. Note that the blowers

 

will remain

in operation

 

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.

wait

+ for

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 "CONVEYOR" ( ) switch to the "OFF" ("O") position.

Press the Up Arrow

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

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

wait

for

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.

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 pro- cedure. If the oven was switched off for

less than 5 minutes, wait for AT LEAST FIVE MINUTES before restarting the oven.

20

Image 24
Contents Owners operating Page Middleby Marshall Table of Contents Section Description Model IdentificationPS528 Series Oven Specifications Series PS1828 Electrical SpecificationsThis Manual Must Be Kept For Future Reference PS528-Series Oven Components Locations II. Component Function Cooling Fan F2. Blank Plates Section Installation UnloadingParts List for Series PS528 Electric Oven Installation KIT Single and Double Stack OvensModel PS528 Single Oven Dimensions Model PS528 Double Oven Dimensions Model 528 Triple Oven Dimensions II. Ventilation Guidelines Electric Supply to be Provided by Customer Circuit BreakerIV. Electric Supply for Electrically Heated Ovens 10. Typical Electric Oven Data PlateSection Installation Section Operation Control FunctionsDoor Safety Switch Blower SwitchHeat Switch Temperature ControllerMeasuring Conveyor Speed ConveyorSee Figures 3-4 Startup Procedures Daily Startup Power FailureShutdown Procedure III. STEP-BY-STEP OperationControl Panel Daily Startup Procedure IV. Normal Operation STEP-BY-STEPSP Lock Quick Reference Troubleshooting SymptomSection Maintenance Maintenance Daily ExteriorCooling Fan Conveyor Belt FigureII. Maintenance Monthly Removing Conveyor From Oven For CleaningQuantity Air Fingers Disassembly For Cleaning T1 T2 T3 B1 B2 B3 Reassembly of Air Fingers 12. Standard Lower FingerExtended Lip Tab on Outer Plate Flange Finger Manifold Incorrect Too Reinstall End Plugs Conveyor Reassembly Into Oven Checking Conveyor Belt TensionConveyor Belt Link Removal Attaching Drive Chain III. Maintenance Every 3 Months IV. Maintenance Every 6 MonthsImportant Notices Electrical TerminalsKEY Spare Parts KIT PS528-SERIES Electric Oven KEY Spare Parts KIT FigureSection Troubleshooting Problem Oven does not HeatSection 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, E208-240V 50/60/3, PS528 P/N 62309 REV B Wiring Diagram, E380-480V 50/60/3, PS528 P/N 62310 REV B Wiring Diagram, E380V 50/60/3 CE PS528 P/N 63969 REV B Section Electrical Schematics