Middleby Marshall PS536-Series manual

©2005 Middleby Marshall Inc. Middleby Middleby Middleby Middleby Middleby Marshall Marshall Marshall Marshall Marshall A MIDDLEBY COMPANY PS536-Series Electric Ovens: English owner's operating & installation manual PS536-Series O VENS Model PS536ES PS536ES (Triple) PS536ES (Double) Part No. 58367 Price $30.00 P: 08/08 Rev. B ® PS536ES (S[...]

ii W ARNING FOR Y OUR SAFETY , DO NO T ST ORE OR USE GASOLINE OR O THER FLAMMABLE V APORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY O THER APPLIANCE. W ARNING Improper installation, adjustment, alteration, service, or maintenance can cause pr oper ty damage, injury , or death. Read the installation, operation, and maintenance instructions thorough[...]

iii MIDDLEBY MARSHALL INC. O VEN LIMITED W ARRANTY (Non U .S.A.) The Seller warrants equipment manufactured by it to be free from defects in material and workmanship for which it is responsible. The Seller ’ s obligation under this warranty shall be limited to replacing or repairing, at Seller ’ s option, without charge, F.O.B. Seller ’ s fac[...]

iv NO TE Wiring Diagrams are in Section 7 of this Manual. The diagram for each oven is also on the lower inner surface of its Control Console. TABLE OF CONTENTS Page SECTION 1 I. MODEL IDENTIFICATION .............................................. 1 SERIES PS536 ELECTRICAL SPECIFICATIONS ............. 2 II. PRINCIPLE OF AIR FLOW ....................[...]

SECTION 1 DESCRIPTION 1 I . MODEL IDENTIFICATION The Middleby Marshall PS536ES-Series may be used either as a single oven or stacked for use as double or triple ovens. 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 mounted on a base pad with legs and casters. A [...]

2 SECTION 1 DESCRIPTION PS536ES SERIES OVEN SPECIFICATIONS Table 1-1: Dimensions Overall Height: 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" (1676mm) double oven with optional 25-1/2" (648mm) l[...]

SECTION 1 DESCRIPTION 3 II. PRINCIPLE OF AIR FLOW The fan-style blower draws air into the oven plenum where it is heated. The blower then pushes the hot air through the air fingers into the baking chamber. Each air finger contains an inner plate and outer plate that form the hot air into jets, distributing it across a conveyor belt on which the foo[...]

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

SECTION 1 DESCRIPTION 5 III. COMPONENT FUNCTION (Figure 1-6) Figure 1-6. PS536ES-Series Oven Components Locations[...]

6 SECTION 1 DESCRIPTION III. COMPONENT FUNCTION A. Conveyor Motor and Conveyor Belt The conveyor belt is driven by a variable-speed electric motor (Figure 1-7) operating through a gear reducer. The motor speed is controlled by a digital control. The stain- less-steel wire belt can travel in either direction at variable rates ranging from 3 minutes [...]

SECTION 1 DESCRIPTION 7 Figure 1-8. Cooling Fan[...]

8 SECTION 1 DESCRIPTION Half Blank Plate Blank Plate Outer Plate Inner Plate Finger Manif old 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 INST ALLA TION 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. NO TE There must be adequate clearance between the oven and any adjacent combustible con- struction. Clearance mu[...]

10 SECTION 2 INSTALLATION PS536ES OVEN INSTALLATION REQUIRED KITS AND EQUIPMENT TY P E PS536ES PS536ES PS536ES PS536ES O F Single Oven Double Oven Triple Oven Additional Cavity INSTALLATION Installation Installation Installation Installation Kit P/N Kit P/N Kit P/N Kit P/N 44919 44920 44921 44974 45529 (CE) 45530 (CE) 45531 (CE) 45532 (CE) PS536ES [...]

SECTION 2 INSTALLATION 11 Figure 2-1 - Installation Kit I. INSTALLATION KIT - see Figure 2-1 Qty. Qty. Qty. Inc. with Inc. with Single Double Triple domestic CE Item Oven Oven Oven Part No. ovens? ovens? Description 1 1 1 1 48605 Ye s Ye s Top panel 2 2 2 2 3A80A8801 Yes Yes Screw, pan head #10 x 2 ″ 3 1 1 1 42893 Ye s Ye s Base pad 4a 4 4 - - 42[...]

12 SECTION 2 INSTALLATION 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 2 INSTALLATION RESTRAINT CABLE INSTALLATION Install the restraint cable assembly on the oven, as shown in 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 - 0 ″ Control End of Oven to Wall - 0 ″ Fig[...]

SECTION 2 INSTALLATION 15 WARNING DO NOT USE CONDUIT OR GAS LINE FOR GROUND CONNECTION. CAUTION IT IS REQUIRED THAT THE OVEN BE PLACED UNDER A VENTILATION HOOD FOR ADEQUATE AIR SUPPLY AND VENTILATION. ELECTRIC AND GAS SUPPLY TO BE PROVIDED BY CUSTOMER ELECTRICAL SAFETY SWITCH 15 Amp circuit breaker / fused disconnect switch with lockout/tagout elec[...]

16 SECTION 2 INSTALLATION II. VENTILATION GUIDELINES A mechanically driven ventilation system is required for the PS536ES Series Middleby Marshall conveyorized electric ovens. The minimum hood canopy dimensions are outlined below. Local codes and conditions vary greatly from one area to another and must be complied with. Following are the suggested[...]

SECTION 2 INSTALLATION 17 III. ELECTRICAL CONNECTION INFORMATION FOR PS536ES-SERIES OVENS. WARNING Authorized supplier personnel normally accom- plish the connections for the ventilation system, electric supply, and gas supply, as arranged by the customer. Following these connections, the factory-authorized installer can perform the initial startup[...]

18 SECTION 2 INSTALLATION 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 the installation kit. Install the rear stop and end stop at the exit end of the oven. See Figure 2-13.[...]

SECTION 3 OPERATION 19 SECTION 3 OPERA TION I. CONTROL FUNCTIONS WARNING A possibility of injury from rotating parts and electric shock exists in this oven. Never disassemble or clean the oven with the BLOWER/HEAT switch or any other oven control turned “ON” or “I”. Turn “OFF” or “O” and lockout or tagout all electric power to the o[...]

20 SECTION 3 OPERATION I I . 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 of control panel opening. Opening the control panel door permits this switch to open, disconnecting power to all electrical controls. CAUTION Do NOT touch the wires going to this safety[...]

SECTION 3 OPERATION 21 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 3 min. to 30 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 [...]

22 SECTION 3 OPERATION 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” or “I” position. This starts the main [...]

SECTION 3 OPERATION 23 A B C D E "BLOWER" Switch: Turns the blowers and cooling fans on and off. The HEAT Switch has no 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 the Digital Temperature Controller. "CONVEYOR"[...]

24 SECTION 3 OPERATION 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 normal startup procedure. IF THE OVEN WAS SWITCHED OFF FOR LESS THAN 5 MINUTES, WAIT FOR AT LEAST FIVE MINUTES BEFORE RESTARTING THE OVEN[...]

SECTION 3 OPERATION 25 Display Shows the Set Point or the Actual T em- perature in degrees Fahrenheit (F) or Celsius (C). "SP LOCK" Light Lights when the set point is locked out from changes. This setting can only be changed by service personnel. OVERTEMP Light Lights when the oven temperature is greater than 650 ° F (343 ° C). Refer to[...]

26 SECTION 3 OPERATION IV . QUICK REFERENCE: TROUBLESHOOTING SYMPTOM PROBLEM SOLUTION The oven temperature ex- ceeded 650 ° F (343 ° C), and the burner was automati- cally shut down. • Follow the procedures under Daily Shutdown Procedures in this section to shut down the oven. Contact your Middleby Marshall Authorized Service Agent to determine[...]

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 the blower switch or any other part of the oven t[...]

28 SECTION 4 MAINTENANCE I. MAINTENANCE - DAILY A. Exterior Everyday you should clean the outside of the oven with a soft cloth and mild detergent. WARNING Never use a water hose or pressurized steam cleaning equipment when cleaning the oven. B. Cooling Fan 1. TWO COOLING FAN GRILLES AT THE REAR OF EACH OVEN CONTROL COMPARTMENT MUST BE CLEANED DAIL[...]

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 of baking. To clean the interior, you have to disassemble some parts of the oven. When cleaning your Series PS536ES Oven note the following: PRECAUTIONS - 1. Do not use excessive water or saturat[...]

30 SECTION 4 MAINTENANCE 4. Remove conveyor drive chain cover as shown. 5. Remove tension from drive chain by lifting and pushing the conveyor slightly into the oven. Remove drive chain from conveyor drive sprocket as shown. NOTE: The split belt conveyor assembly can only be removed from the drive end of the oven. 6. Begin sliding conveyor out of t[...]

SECTION 4 MAINTENANCE 31 B. Air Fingers Disassembly For Cleaning 1. As the air fingers are removed use a felt pen to mark all parts of the fingers. This includes the finger manifold, inner plate and the outer plate (refer to Figure 1-9). If a blank or choke plate is used, mark that plate also. Fingers are marked in the order shown; as viewed from t[...]

32 SECTION 4 MAINTENANCE 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 cleaned by either soaking in a hot, strong detergent solution or using a caustic cleaner. The conveyor belt can also be cleaned in the same way. Figure 4-13. Standard Lower Finger Figure 4-14. Standar[...]

SECTION 4 MAINTENANCE 33 IMPORTANT: Only M6 Fingers fit in the bottom row. All M3 and M1 finger cover plates have extended lips at front. This extended lip will not allow these fingers to be installed in the bottom row. IMPORTANT: When inserting fingers the tab on the outer plate must be in the groove as shown in Figure 4-18. There is a blocking ta[...]

34 SECTION 4 MAINTENANCE 5. Install fingers and blank plates correctly with edges interlocked and no space between edges. Figure 4-19. Top Finger Incorrect - Too Much Space Blank Plate Tab on Outer Plate of Finger Located in Groove Top Finger Incorrect - Too Much Space Blank Plate Tab on Outer Plate of Finger Located in Groove Top Finger Correct - [...]

SECTION 4 MAINTENANCE 35 E. Reinstall End Plugs 1. Reinstall lower end plug. Be sure to tighten two wing screws 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 4 MAINTENANCE G. Checking Conveyor Belt Tension WARNING Oven conveyor belt must be cool when adjusting belt. Do not adjust belt if HOT. 1. With the conveyor assembly in the oven, stand at one end of conveyor and check tension by lifting the conveyor belt at the center of the oven chamber opening. The belt should not lift higher that 3 ?[...]

SECTION 4 MAINTENANCE 37 H. Conveyor Belt Link Removal 1. Using long nose pliers, an entire link can be removed with the conveyor assembly either in or out of the oven. Position master links at end of conveyor as shown in Figure 4-25. Figure 4-25. 2. Using long nose pliers, unhook master links at left end of conveyor as shown in Figure 4-26. Figure[...]

38 SECTION 4 MAINTENANCE I. Replacing Conveyor Belt If a section of the conveyor belt needs replacing it can be done with the conveyor assembly either in or out of the oven. The section of the conveyor belt furnished with the oven in the installation kit may then be used to replace a section. Follow the preceding procedure “ H. Conveyor belt link[...]

SECTION 4 MAINTENANCE 39 4. Reassemble conveyor drive chain cover and then reassemble 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 the switch before attempting maintenance work. Shut OFF gas supply to oven. NOTE: It is r[...]

40 SECTION 4 MAINTENANCE B. Electrical Terminals Open the control cabinet door by removing the three screws from the control cabinet door. Tighten all electrical control terminal screws including the electrical contactor terminal screws as shown in Figure 4-37. Figure 4-37. Figure 4-38. C. Ventilation Check that the air circulation throughout the o[...]

SECTION 4 MAINTENANCE 41 D. Split-belt Conveyor Shaft Cleaning It is very important that the split-belt conveyor drive and idler shafts are removed from the conveyor frame for cleaning and lubrication. CAUTION Use a turbine oil or light machine oil. DO NOT USE WD40 or similar product. These oils evaporate and cause the shafts to seize. 1. Perform t[...]

42 SECTION 4 MAINTENANCE 6. Make sure bronze washer is in between the two halves. Figure 4-42. 7. Place the idler shaft assembly back into place and reinstall the adjustment screws. Figure 4-43. 8. Loosen the set screw on each conveyor drive sprocket and remove sprockets. Figure 4-44. 9. Loosen the split locking collar. Figure 4-45. 10. Remove driv[...]

SECTION 4 MAINTENANCE 43 12. Slide shaft assembly to right side, holding assembly in place. Slide split locking collar to the left side and tighten. 13. Slide rear conveyor drive sprocket onto shaft. Tighten the set screw of this drive sprocket until it extends into the hole of the hollow shaft. It should NOT touch the inner, solid shaft. Check to [...]

44 SECTION 4 MAINTENANCE 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 is ordered, or later, from a Middleby Marshall Authorized Parts Distributor). The kit contains many of the crucial parts that can reduce serious downtime and loss of production, if a failure occurs.[...]

45 SECTION 5 TROUBLESHOOTING SECTION 5 TROUBLESHOO TING 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 setting. If products still cook incorrectly, call y[...]

SECTION 5 TROUBLESHOOTING 46 NO TES[...]

47 ENGLISH SECTION 6 PARTS LIST SECTION 6 - P AR TS LIST[...]

48 ENGLISH SECTION 6 PARTS LIST[...]

49 ENGLISH SECTION 6 PARTS LIST OVEN PANELS, WINDOW AND LEGS ITEM QTY. P/N DESCRIPTION 1 2 A30241 NUT, 1/4-20 18-8 NYL INS L/N 2 2 A27750 WASHER, FLAT .531X1.00X.062 3 2 30927 BUMPER, WINDOW 4 1 51210 BRKT, WINDOW HINGE & STOP LEFT 5 1 51211 BRKT, WINDOW HINGE & STOP RIGHT 6 1 51087 WLDMT, GLASS FRAME WINDOW 7 1 M10092 HANDLE, WINDOW 8 1 M1[...]

50 ENGLISH SECTION 6 PARTS LIST[...]

51 ENGLISH SECTION 6 PARTS LIST CONTROL PANEL ITEM QTY. P/N DESCRIPTION 1 1 48635 BREAKER, CIRCUIT 240V 0.3A 2 2 46831 BREAKER, CIRCUIT 240V 8A 3 1 28021-0047 SWITCH, INTLCK 10A NO2P 4 2 45036 BREAKER, CIRCUIT 240V 3A 5 1 33983 CNTRL, ELEC HI-LIMIT 240V 6 1 33813 FILTER, RFI TYPE F1780DD20 7 1 O R 2 3002757 MOTOR, CONVEYOR DRIVE 8 1 31504 TFMR, 230[...]

52 ENGLISH SECTION 6 PARTS LIST[...]

53 ENGLISH SECTION 6 PARTS LIST BLOWER AND SHROUD ITEM QTY. P/N DESCRIPTION 1 2 42951 INLET RING 2a 1 42752 BLOWER WHEEL, RIGHT (VIEWED FROM REAR OF OVEN) 2b 1 42753 BLOWER WHEEL, LEFT (VIEWED FROM REAR OF OVEN) 3 2 42999 RETAINER, TEFLON SEAL 4 2 35121-0045 TEFLON SEAL 5 2 22072-0025 BEARING, 5/8" BORE WITH STANDARD GREASE - - - - 17110-0015 [...]

54 ENGLISH SECTION 6 PARTS LIST[...]

55 ENGLISH SECTION 6 PARTS LIST CONVEYOR P/N - 60" P/N - 56" P/N - 76" ITEM QTY. CONVEYOR CONVEYOR CONVEYOR DESCRIPTION 1 1 48847 48847 48790 FRAME, DRIVE SIDE 21 < - - - - 48797 - - - - > ASSEMBLY, STANDARD DRIVE SHAFT (INC. ITEMS 3-8) 31 < - - - - 48781 - - - - > DRIVE SHAFT 44 < - - - - 22229-0003 - - - - > SPROC[...]

56 ENGLISH SECTION 6 PARTS LIST[...]

57 ENGLISH SECTION 6 PARTS LIST SPLIT BELT CONVEYOR 1 1 48847 48847 48790 FRAME, DRIVE SIDE 21 < - - - - 48759 - - - - > ASSEMBLY, SPLIT DRIVE SHAFT, STANDARD AND HIGH SPEED (INC. ITEMS 3-6) 31 < - - - - 49969 - - - - > SPLIT DRIVE SHAFT - MAIN 4 1 < - - - - 48837 - - - - > SPLIT DRIVE SHAFT - SLEEVE 51 < - - - - 21415-0001 - -[...]

58 ENGLISH SECTION 6 PARTS LIST ELEMENT[...]

59 ENGLISH SECTION 6 PARTS LIST MACHINERY COMPARTMENT ITEM QTY. P / N DESCRIPTION 1 2 44914 CONTROLLER, PS555EL 208-240V 1 2 44568 CONTROLLER, PS555EL 380-480V 2 1 58238 WLDMT, HTG ELE 208V 17KW 536ES 2 1 50232 WLDMT, HTG ELE 240V 17KW 536ES 2 1 50587 WLDMT, HTG ELE 380V 17KW 536ES 2 1 50589 WLDMT, HTG ELE 480V 17KW 536ES 3 2 27480-0001 BL O C K , [...]

60 ENGLISH SECTION 6 PARTS LIST NOTES[...]

61 SECTION 7 ELECTRICAL SCHEMATICS SECTION 7 ELECTRICAL SCHEMA TICS 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 10 101 200 260 256 149 305 410 509 420 519 422 3[...]

SECTION 7 ELECTRICAL SCHEMATICS 62 Wiring Diagram, E380-480 50/60, 3PH 5W PS536ES 58330D 10 AWG 613 614 10 AWG 10 AWG 10 AWG 326 614 526 325 425 613 525 625 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 C1,1 228 280 280 9 10 11 12 13 14 15 16 G L1 L2 4 5 6 -7 +8 COUNT AC -ARM +ARM AC COM 5V 5V COUNT CO[...]

63 SECTION 7 ELECTRICAL SCHEMATICS Wiring Diagram, E380V 50/60, 3PH 5W PS536ES 58267D NO2 NO2 COM2 COM2 NO1 NO1 COM1 COM1 BLOQUE DE TERMINALES KLEMMLEISTE TB3 CONTACTOR SCHALTSCHUTZ CONTROLEUR CONTROLADOR " v .. VERDE LENGUETA " GRUN ERDUNGSANSCHLUSS TERRE PATTE CONTACTOR SCHALTSCHUTZ CONTROLEUR CONTROLADOR " v v " CONTACTOR SCH[...]

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 Equipment Service Association (CFESA). We recognize and applaud CFESA's ongoing efforts to improve the qualit[...]