Manuals / Middleby Marshall / Kitchen Appliance / Oven

Middleby Marshall 60254 Do Not Use Conduit For Ground Connection, Electrical Specifications

Models: 60254

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UTILITY ROUGH-IN DIMENSIONS AND POSITIONING FOR PS740-SERIES OVENS

UTILITY ROUGH-IN DIMENSIONS AND POSITIONING FOR PS740-SERIES OVENS

WARNING

DO NOT USE CONDUIT FOR GROUND CONNECTION.

CAUTION

IT IS RECOMMENDED THAT THE OVEN BE PLACED UNDER A VENTILATION HOOD FOR ADEQUATE AIR SUPPLY AND VENTILATION.

ELECTRIC SUPPLY TO BE

PROVIDED BY CUSTOMER

CIRCUIT BREAKER

Separate circuit breaker with lockout/tagout electrical shutoff for each oven. Wire each oven separately.

100 Amp circuit breaker for 208-240V, or 50 Amp circuit breaker for 380-480V.

ELECTRICAL SPECIFICATIONS

DOMESTIC: 208V main blower motors and elements,

3Ph, 75 Amp draw, 50/60 Hz, 208-240V control circuit,

3pole, 4 wire system per oven (3 hot, 1 grd).

Do NOT use conduit for ground.

or

DOMESTIC: 240V main blower motors and elements,

3Ph, 65 Amp draw, 50/60 Hz, 208-240V control circuit,

3pole, 4 wire system per oven (3 hot, 1 grd).

Do NOT use conduit for ground.

or

EXPORT: 380V elements, 3 Ph, 41 Amp draw, 50/60 Hz, 208-240V control circuit and main blower motor, 4 pole, 5 wire system per oven (3 hot, 1 neutral, 1 grd).

Do NOT use conduit for ground.

or

DOMESTIC: 480V elements, 3 Ph, 32.5 Amp draw, 50/60 Hz, 208-240V control circuit and main blower motor, 4 pole, 5 wire system per oven (3 hot, 1 neutral, 1 grd).

Do NOT use conduit for ground.

To Oven

To Oven

Suggested dimensions are shown; utility code requirements supersede any factors shown.

Figure 2-19. Typical PS740-Series Oven(s)

Installation

ELECTRICAL RATING

27.0kW/hr.

SUPPLY WIRE

Supply wire size must be in accordance with the National Electrical Code (current edition) and must be in compliance with local codes.

NOTE: The electrical terminal connection marked “MP” located inside the control compartment is desiganated for the blue (neutral) wire to the oven. See the electrical wiring/schematics in Section 6 of this manual.

SUGGESTED

If space permits, service should be located near the control console end of the oven(s) to allow convenient access to safety switches.

P/N 60254 September 28, 2012

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Middleby Marshall 60254 Do Not Use Conduit For Ground Connection, Electrical Specifications, Electrical Rating, Suggested

Contents

for domestic and standard export ovens OWNERS OPERATING AND INSTALLATION MANUALPS740 Series Electric Ovens ModelRETAIN THIS MANUAL FOR FUTURE REFERENCE No Quibble Limited Warranty MIDDLEBY MARSHALL INC. OVEN LIMITED WARRANTY Non U.S.AMIDDLEBY MARSHALL U.S.A. OnlyP/N 60254 September 28 TABLE OF CONTENTSSECTION 6 - ELECTRICAL WIRING DIAGRAM SECTION 3 - OPERATIONII. OVEN COMPONENTS - see Figure SECTION 1 - DESCRIPTIONI. OVEN USES Figure 1-1. Oven ComponentsTable 1-1 Dimensions I. OVEN SPECIFICATIONSSERIES PS740 ELECTRICAL SPECIFICATIONS Table 1-2 General SpecificationsSECTION 2 - INSTALLATION P/N 60254 September 28Figure 2-1A. PS740-Series Electric Oven Installation Parts PS740 24″ OVEN INSTALLATION REQUIRED KITS AND EQUIPMENTPARTS LIST FOR SERIES PS740 ELECTRIC OVEN INSTALLATION KIT P/N InstallationFigure 2-1B. PS740-Series Electric Oven Installation Parts PS740 OVEN INSTALLATION REQUIRED KITS AND EQUIPMENTPARTS LIST FOR SERIES PS740 ELECTRIC OVEN INSTALLATION KIT P/N InstallationP/N 60254 September 28 Figure 2-2A. Model PS740 24″ Single OvenOption Base with Legs and Top ITEM NOP/N 60254 September 28 Figure 2-2B. Model PS740 32″ Single OvenOption Base with Legs and Top ITEM NOP/N 60254 September 28 Figure 2-3A. Model PS740 24″ Double OvenOption Base with Legs and Top ITEM NOITEM NO Figure 2-3B. Model PS740 32 Double Oven Option Base with Legs and TopP/N 60254 September 28 DESCRIPTIONP/N 60254 September 28 Figure 2-4A. Model PS740 24″ Triple OvenOption Base with Outriggers and Top ITEM NOP/N 60254 September 28 Figure 2-4B. Model PS740 32″ Triple OvenOption Base with Outriggers and Top ITEM NOMOUNTING SUCH EQUIPMENT ON THE OVEN MAY VOID AGENCY CERTIFICATIONS equipment directly to the ovenRESTRICT SERVICE ACCESS LEAD TO INCREASED SERVICE EXPENSES FOR THE OWNERFigure 2-6. Leg extension and casters installation IV. ASSEMBLYFigure 2-7. Base pad Installation Figure 2-8. Top panel installationC. Restraint Cable Installation Figure 2-10. Top panel installationFigure 2-11. Installing the Restraint Cable Figure 2-9. StackingD. Conveyor Installation Figure 2-12. Conveyor installationFigure 2-13. Conveyor placement Figure 2-14. Conveyor Belt tensionE. Final Assembly RESETTING DIRECTION JUMPERSWITCHING PHOTO DETECTOR CONVEYOR BELT REVERSALFigure 2-18. Utility Connection Locations for Elec IV. ELECTRIC SUPPLY FOR ELECTRICALLY HEATED OVENSIII. ELECTRICAL CONNECTION INFORMATION FOR PS740E-SERIES OVENS Figure 2-17. Typical Electric Oven Data PlateFigure 2-19. Typical PS740-Series Ovens Installation UTILITY ROUGH-IN DIMENSIONS AND POSITIONING FOR PS740-SERIES OVENSELECTRICAL SPECIFICATIONS SUPPLY WIREE. Energy Level Indicators B. Conveyor Time SettingC. Temperature Control/Display SECTION 3 - OPERATIONB. Oven Temperature/Set Point/Indicator Screen A. Daily Startup ProcedureB. Daily Shutdown Procedure II. NORMAL OPERATION - STEP-BY-STEPPROBLEM III. QUICK REFERENCE TROUBLESHOOTINGSYMPTOM SOLUTIONFigure 4-1. Cooling Vents and Grills SECTION 4 - MAINTENANCEI. MAINTENANCE - DAILY P/N 60254 September 28Bottom Row II. MAINTENANCE - MONTHLYTop Row Figure 4-2. Removing Air Fingers and PlatesD. Split Belt Disassembly and Cleaning III. MAINTENANCE - EVERY 3 MONTHSFigure 4-5. Drive shaft configurations Figure 4-4. Disassembling the idler shaftFigure 4-6. Disassembling the drive shaft IV. MAINTENANCE - EVERY 6 MONTHSFigure 4-7. Rear panel access P/N 60254 September 28V. KEY SPARE PARTS - Available separately. See Figure Figure 4-8. Key Spare PartsP/N 60254 September 28 ITEM QTYPROBLEM OVEN BLOWER AND CONVEYOR OPERATE YET THE OVEN IS NOT HEATING SECTION TROUBLESHOOTINGPROBLEM PRODUCTS ARE OVERCOOKED OR UNDERCOOKED PROBLEM OVEN DOES NOT HEATP/N 60254 September 28 SECTION 6 - WIRING DIAGRAMMiddleby-Marshall Model Number E208-240 Volt 50/60 Hz, 3 Phase 60739 Rev. JP/N 60254 September 28 Middleby-Marshall Model Number E380-480 Volt 50/60 Hz, 3 Phase60741 Rev. L P/N 60254 September 28 P/N 60254 September 28 installing or servicing this equipment