Middleby Marshall 60254 installation manual Do not USE Conduit for Ground Connection

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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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Contents Owners Operating and Installation Manual Retain this Manual for Future Reference Middleby Marshall Table of Contents Conveyor Drive Motor Moves the conveyor Not ShownOven Specifications Installation PS740 24″ Oven Installation Required Kits and Equipment Parts List for Series PS740 Electric Oven Installation KITPS740 Oven Installation Required Kits and Equipment Item no QTY Description 66159 ″-16 × 1 HEX SCREW, SST 3B. Model PS740 32 Double Oven Option Base with Legs and Top Quad Outrigger Weldment 7A2S15 SCR, MS STR Trshd 10-32X3/4″ Recommendations III. Ventilation SystemRequirements Other ventilation concernsIV. Assembly Top Panel and Base Pad AssemblyRestraint Cable Installation StackingConveyor Installation Do not Overtighten the Conveyor BeltFinal Assembly Resetting Direction JumperSwitching Photo Detector Conveyor Belt ReversalIV. Electric Supply for Electrically Heated Ovens 18. Utility Connection Locations for ElecDo not USE Conduit for Ground Connection Electric Supply to be Provided by Customer Circuit BreakerLocation and Description of Controls II. Normal Operation STEP-BY-STEP III. Quick Reference Troubleshooting Screen AlertsMaintenance Maintenance DailyII. Maintenance Monthly Top Row Bottom RowIII. Maintenance Every 3 Months Split Belt Disassembly and CleaningIV. Maintenance Every 6 Months Blower BeltKEY Spare Parts Available separately. See Figure Item QTY DescriptionProblem Oven does not Heat ProblemWiring Diagram 60741 Rev. L 60254 September 28 60254 September 28 Installing or servicing this equipment