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3D Connexion PS520G SECTION 3 OPERATION WARNING , III. STEP-BY-STEP OPERATION

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SECTION 3 OPERATION WARNING

OVEN MUST BE KEPT CLEAR OF

COMBUSTIBLES AT ALL TIMES.

III. STEP-BY-STEP OPERATION

A. Startup Procedures

Daily Startup

1. Turn the BLOWER switch (Figure 3-6) to the “ON” or

“I” position. This starts the main blower fan and the cool-

ing fans. The blower circulates air through the air ngers

and must stay on during the cooking or baking process.

2. Check to see if the cooling fans (see Figure 1-8) are

operating when the blower switch (see Figure 3-6) is turned

“ON” or “I”. The cooling fans cool the control components

and blower motor. The cooling fans, located at the rear

of the oven blows air into and through the cabinet. Air is

exhausted through the front of the cabinet and also out

the front of the oven. Refer to Daily Maintenance Section

for fan intake checking procedure.

IMPORTANT NOTE

The cooling fan operates when the BLOWER

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.

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. Wait for the “Heat ON” light to turn on.

6. Oven will reach a baking temperature of 500°F (232°C)

in approximately 20 minutes. Allow the oven to cycle for

30 minutes after it has reached desired bake temperature.

The oven is now ready for baking.

Power Failure

In case of power failure, turn off all switches and remove

product. After power has been reestablished follow

normal startup procedure.

B. Shutdown Procedure

1. Turn the BLOWER and HEAT switches to “OFF” or “O”.

NOTE: The blowers will remain on until the oven tem-

perature 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”.

Contents

Main Page iii MIDDLEBY MARSHALL INC. OVEN LIMITED WARRANTY (Non U.S.A.) Model No. Modle No. Serial No. Seri No. Installation Date Date d'installation MIDDLEBY MARSHALL No Quibble limited WarraNty (U.S.A. Only) iv TABLE OF CONTENTS TABLE OF CONTENTS (Continued) DESCRIPTION I. MODEL IDENTIFICATION SECTION 1 DESCRIPTION Figure 1-1. Single PS520 Oven Figure 1-2. Double PS520 Oven 2 SECTION 1 DESCRIPTION PS520 SERIES OVEN SPECIFICATIONS This Manual Must Be Kept For Future Reference. SERIES PS520 ELECTRICAL SPECIFICATIONS GAS ORIFICE AND PRESSURE SPECIFICATIONS (PER OVEN CAVITY) - CE OVENS Page SECTION 1 DESCRIPTION II. COMPONENT FUNCTION Figure 1-5. Machinery Compartment Components Blower Assembly Right Control Box Page Figure 1-7. Blank Plates (two sizes) and an Air Finger. SECTION 2 INSTALLATION SECTION 2 INSTALLATION PARTS LIST FOR SERIES PS520 GAS OVEN INSTALLATION KIT Single Stack Oven P/N 59182 Figure 2-1. PS520-Series Gas Oven Installation Parts CAUTION I. UNLOADING Page Page Page Page Page SECTION 2 INSTALLATION III. ELECTRICAL CONNECTION INFORMATION FOR PS520-SERIES OVENS. Figure 2-10. Typical Electric Oven Data Plate IV. ELECTRIC SUPPLY FOR GAS HEATED OVENS Figure 2-11. Junction Connection Box V. GAS SUPPLY CAUTION Page Page Page SECTION 3 OPERATION SECTION 3 OPERATION II. COMPONENT INFORMATION AND LOCATION (Figures 3-1 and 3-2) CAUTION Figure 3-2. Interior View of Control Console OPERATION MEASURING CONVEYOR SPEED. 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 SECTION 3 OPERATION WARNING III. STEP-BY-STEP OPERATION Page 24 SECTION 3 OPERATION CAUTION A.Daily Startup Procedure + or + wait or wait IMPORTANT Page SECTION 3 OPERATION V. QUICK REFERENCE: TROUBLESHOOTING SYMPTOM PROBLEM SOLUTION SECTION 4 MAINTENANCE NOTICE WARNING SECTION 4 MAINTENANCE I. MAINTENANCE - DAILY Figure 4-1. Oven Cooling Fans Figure 4-2. Conveyor Belt and Crumb Pan Cleaning SECTION 4 MAINTENANCE Figure 4-3. II. MAINTENANCE - MONTHLY Page Standard Fingers Figure 4-8. Figure 4-9. Figure 4-10. T1 T2 T3 B1 B2 B3 Page Figure 4-17. 34 5. Install ngers and blank plates correctly with edges interlocked and no space between edges. Figure 4-18. Page Figure 4-23. Figure 4-21. Figure 4-22. Figure 4-24. Figure 4-25. Figure 4-26. Figure 4-27. Figure 4-28. Figure 4-32. Figure 4-33. Figure 4-31. Figure 4-29. Figure 4-30. SECTION 4 MAINTENANCE Figure 4-34. III. MAINTENANCE - EVERY 3 MONTHS Figure 4-35. IV. MAINTENANCE - EVERY 6 MONTHS SECTION 4 MAINTENANCE KEY SPARE PARTS KIT Figure 4-36. PS520-SERIES GAS OVEN KEY SPARE PARTS KIT (Figure 4-36) SECTION 5 TROUBLESHOOTING SECTION 5 TROUBLESHOOTING Page Page www.middleby.com WARNING