Middleby Marshall PS536-Series - Manuals

SECTION 1 DESCRIPTION 1 I. MODEL IDENTIFICATION The Middleby Marshall PS536ES-Series may be usedeither as a single oven or stacked for use as double or tripleovens. The major difference between the oven models in this series is the width of the conveyor. A single PS536ES-Series Oven (Figure 1-1) is ...

2 SECTION 1DESCRIPTION PS536ES SERIES OVEN SPECIFICATIONS Table 1-1: Dimensions O v e r a l l H e i g h t : single oven with 17-1/2" (446mm) legs 43-1/2" (1105mm) double oven with standard 17-1/2" (446mm) legs 63" (1600mm) double oven with optional 20-1/2" (521mm) legs 66" (1...

SECTION 1 DESCRIPTION 3 II. PRINCIPLE OF AIR FLOW The fan-style blower draws air into the oven plenum whereit is heated. The blower then pushes the hot air through theair fingers into the baking chamber. Each air fingercontains an inner plate and outer plate that form the hot airinto jets, distribut...

4 SECTION 1DESCRIPTION Series ovens used to bake pizza have four bottom fingersand two top fingers. For special product baking require-ments, a number of other styles of fingers and fingerarrangements are available from the factory. NOTE: Some customers have a predetermined finger arrangement. If yo...

6 SECTION 1DESCRIPTION III. COMPONENT FUNCTION A. Conveyor Motor and Conveyor Belt The conveyor belt is driven by a variable-speed electricmotor (Figure 1-7) operating through a gear reducer. Themotor speed is controlled by a digital control. The stain-less-steel wire belt can travel in either direc...

8 SECTION 1DESCRIPTION Half Blank Plate Blank Plate Outer Plate Inner Plate Finger Manifold Assembly Baffle Figure 1-9. Blank Plates (two sizes) and an Air Finger. F2. Blank Plates 1. Blank Plates- The Blank Plates are available to install on the plenum where an air finger is not required.

SECTION 2 INSTALLATION 9 SECTION 2 INSTALLATION NOTE: The oven, when installed, must be electrically grounded in accordance with local codes, or in the ab-sence of local codes, with the National Electrical Code(NEC), or ANSI/NFPA70. NOTE There must be adequate clearance betweenthe oven and any adjac...

12 SECTION 2INSTALLATION Figure 2-5. MODEL PS536ES SINGLE OVEN DIMENSIONS ELECTRICAL JUNCTION BOX RECOMMENDED MINIMUM CLEARANCES:Rear of Oven to Wall - 6 ″ (150mm) Non-control End of Oven to Wall - 0 ″ Control End of Oven to Wall - 0 ″ 1 2 2 2 2 1

SECTION 2 INSTALLATION 13 Figure 2-6. MODEL PS536ES DOUBLE OVEN DIMENSIONS ELECTRICAL JUNCTION BOX RECOMMENDED MINIMUM CLEARANCES:Rear of Oven to Wall - 6 ″ (150mm) Non-control End of Oven to Wall - 0 ″ Control End of Oven to Wall - 0 ″ 1 2 2 2 2 1

14 SECTION 2INSTALLATION RESTRAINT CABLE INSTALLATION Install the restraint cable assembly on the oven, as shownin Figure 2-6. Figure 2-7. MODEL PS536ES TRIPLE OVEN DIMENSIONS ELECTRICAL JUNCTION BOX RECOMMENDED MINIMUM CLEARANCES:Rear of Oven to Wall - 6 ″ (150mm) Non-control End of Oven to Wall - ...

SECTION 2 INSTALLATION 15 WARNING DO NOT USE CONDUIT OR GAS LINEFOR GROUND CONNECTION. CAUTION IT IS REQUIRED THAT THE OVEN BEP L A C E D U N D E R A V E N T I L A T I O NHOOD FOR ADEQUATE AIR SUPPLYAND VENTILATION. ELECTRIC AND GAS SUPPLY TO BE PROVIDED BY CUSTOMER ELECTRICAL SAFETY SWITCH 15 Amp c...

16 SECTION 2INSTALLATION II. VENTILATION GUIDELINES A mechanically driven ventilation system is required forthe PS536ES Series Middleby Marshall conveyorizedelectric ovens. The minimum hood canopy dimensions areoutlined below. Local codes and conditions vary greatly from one area toanother and must ...

SECTION 2 INSTALLATION 17 III. ELECTRICAL CONNECTION INFORMATION FOR PS536ES-SERIESOVENS. WARNING Authorized supplier personnel normally accom-plish the connections for the ventilation system,electric supply, and gas supply, as arranged bythe customer. Following these connections, thefactory-authori...

18 SECTION 2INSTALLATION Figure 2-13. Installing Rear and End Stops VI. CONVEYOR REAR STOP AND END STOP INSTALLATION Locate the conveyor rear stop and end stop in theinstallation kit. Install the rear stop and end stop at the exitend of the oven. See Figure 2-13.

SECTION 3 OPERATION 19 SECTION 3 OPERATION I. CONTROL FUNCTIONS WARNING A possibility of injury from rotating parts andelectric shock exists in this oven.Never disassemble or clean the oven with theBLOWER/HEAT switch or any other oven controlturned “ON” or “I”. Turn “OFF” or “O” and lockoutor tagout...

20 SECTION 3OPERATION II. COMPONENT INFORMATION AND LOCATION (Figures 3-1 and 3-2) A. Door Safety Switch The Door Safety Switch is located at the lower left side ofcontrol panel opening. Opening the control panel doorpermits this switch to open, disconnecting power to allelectrical controls. CAUTION...

SECTION 3 OPERATION 21 E. Conveyor The on-off switch for the conveyor motor is on the controlpanel. Also on the control panel is the digital conveyorspeed control. The digital control can be adjusted from 3min. to 30 min. bake time (conveyor speed). Refer toFigure 3-3. Conveyor speed is measured by ...

22 SECTION 3OPERATION 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...

SECTION 3 OPERATION 23 A B C D E "BLOWER" Switch: Turns the blowers and cooling fans on and off. The HEAT Switch hasno effect unless the BLOWER Switch is in the“ON” position. A. "HEAT" Switch: Allows the burner to activate. Activation is determined by the settings on theDigital Tempe...

24 SECTION 3OPERATION CAUTION In case of power failure, turn all switches to the “OFF” ("O")position, open the oven window, and remove the product.After the power has been restored, perform the normalstartup procedure. IF THE OVEN WAS SWITCHED OFFFOR LESS THAN 5 MINUTES, WAIT FOR AT LEAST FI...

SECTION 3 OPERATION 25 Display Shows the Set Point or the Actual Tem- perature in degrees Fahrenheit (F) or Celsius (C). "SP LOCK" Light Lights when the set point is lockedout from changes. This setting can only be changed by service personnel. OVERTEMP Light Lights when the oven temperature...

SECTION 4 MAINTENANCE 27 SECTION 4 MAINTENANCE WARNING Possibility of injury from rotating parts and electrical shock exist in this oven. Turn off and lockout or tagout electrical supply to oven(s) before attempting to disassemble, clean or service oven(s). Never disas- semble or clean the oven with...

28 SECTION 4MAINTENANCE I. MAINTENANCE - DAILY A. Exterior Everyday you should clean the outside of the oven with asoft cloth and mild detergent. WARNING Never use a water hose or pressurized steamcleaning equipment when cleaning the oven. B. Cooling Fan 1. TWO COOLING FAN GRILLES AT THE REAR OFEACH...

SECTION 4 MAINTENANCE 29 Figure 4-3. II. MAINTENANCE - MONTHLY NOTE: The oven interior may require cleaning more than once a month depending on the volume ofbaking. To clean the interior, you have to disassemblesome parts of the oven. When cleaning your Series PS536ES Oven note thefollowing: PRECAUT...

SECTION 4 MAINTENANCE 31 B. Air Fingers Disassembly For Cleaning 1. As the air fingers are removed use a felt pen to mark allparts of the fingers. This includes the finger manifold, innerplate and the outer plate (refer to Figure 1-9). If a blank orchoke plate is used, mark that plate also. Fingers ...

32 SECTION 4MAINTENANCE 6. To remove the inner plate, pull the plate out and then up. Figure 4-12. 7. The outer finger plate is stainless and may be cleanedby either soaking in a hot, strong detergent solution orusing a caustic cleaner. The conveyor belt can also becleaned in the same way. Figure 4-...

SECTION 4 MAINTENANCE 33 IMPORTANT: Only M6 Fingers fit in the bottom row. All M3 and M1 finger cover plates haveextended lips at front. This extended lip will notallow these fingers to be installed in the bottom row. IMPORTANT: When inserting fingers the tab on the outer plate must be in the groove...

SECTION 4 MAINTENANCE 35 E. Reinstall End Plugs 1. Reinstall lower end plug. Be sure to tighten two wingscrews on the end plug. 2. Reinstall conveyor. 3. Reinstall upper end plug. Be sure to tighten two wing screws on the end plug. Figure 4-20. Figure 4-21.

36 SECTION 4MAINTENANCE G. Checking Conveyor Belt Tension WARNING Oven conveyor belt must be cool when adjustingbelt. Do not adjust belt if HOT. 1. With the conveyor assembly in the oven, stand at oneend of conveyor and check tension by lifting the conveyorbelt at the center of the oven chamber open...

SECTION 4 MAINTENANCE 37 H. Conveyor Belt Link Removal 1. Using long nose pliers, an entire link can be removedwith the conveyor assembly either in or out of the oven.Position master links at end of conveyor as shown inFigure 4-25. Figure 4-25. 2. Using long nose pliers, unhook master links at left ...

SECTION 4 MAINTENANCE 39 4. Reassemble conveyor drive chain cover and thenreassemble the bottom cover to the drive chain cover. Install both upper end plugs. Figure 4-35. III. MAINTENANCE - EVERY 3 MONTHS WARNING Shut OFF all electrical power and lock/tag out theswitch before attempting maintenance ...

40 SECTION 4MAINTENANCE B. Electrical Terminals Open the control cabinet door by removing the threescrews from the control cabinet door. Tighten all electricalcontrol terminal screws including the electrical contactorterminal screws as shown in Figure 4-37. Figure 4-37. Figure 4-38. C. Ventilation C...

42 SECTION 4MAINTENANCE 6. Make sure bronze washer is in between the two halves. Figure 4-42. 7. Place the idler shaft assembly back into place andreinstall the adjustment screws. Figure 4-43. 8. Loosen the set screw on each conveyor drive sprocketand remove sprockets. Figure 4-44. 9. Loosen the spl...

SECTION 4 MAINTENANCE 43 12. Slide shaft assembly to right side, holding assemblyin place. Slide split locking collar to the left side andtighten. 13. Slide rear conveyor drive sprocket onto shaft. Tightenthe set screw of this drive sprocket until it extends into thehole of the hollow shaft. It shou...

44 SECTION 4MAINTENANCE KEY SPARE PARTS KIT An oven can be purchased with a Key Spare Parts Kit(Figure 4-52). (The kit can be purchased when the oven isordered, or later, from a Middleby Marshall AuthorizedParts Distributor). The kit contains many of the crucial parts that can reduce serious downtim...

45 SECTION 5 TROUBLESHOOTING SECTION 5 TROUBLESHOOTING PROBLEM: PRODUCTS ARE OVERCOOKED OR UNDERCOOKED Check for correct setting of conveyor speed control. Set the conveyor speed control at correct setting. Check for correct setting on tempera- ture controller. Turn temperature control to correct se...

47 ENGLISH SECTION 6 PARTS LIST SECTION 6 - PARTS LIST

61 SECTION 7 ELECTRICAL SCHEMATICS SECTION 7 ELECTRICAL SCHEMATICS Wiring Diagram, E208-240 50/60, 3PH 4W PS536ES 58214E 10 AWG 613 614 10 AWG 10 AWG 10 AWG 10 AWG 10 AWG 10 AWG C1,6 BLUE BROWN C1,12 C2,12 C2,4 C2,5 C2,3 C1,4 C1,5 5 5 255 143 C1,1 228 280 607 606 610 610 248 C1,3 C2,9 C2,6 C2,7 C2,8...

Middleby Cooking Systems Group • 1400 Toastmaster Drive • Elgin, IL 60120 • USA • (847)741-3300 • FAX (847)741-4406 24-Hour Service Hotline: 1-(800)-238-8444 www.middleby.com Middleby is proud to support the Commercial Food EquipmentService Association (CFESA). We recognize and applaudCFESA's ongoin...