Middleby Marshall PS528 (Double), PS528E, PS528 (Triple) II. Ventilation Guidelines

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SECTION 2

INSTALLATION

UTILITY ROUGH-IN DIMENSIONS AND POSITIONING

FOR PS528-SERIES OVENS

WARNING

DO NOT USE CONDUIT OR GAS LINE 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.

60 Amp circuit breaker for 208-240V 1ph, 50 Amp circuit breaker for 208-240V 3ph, or 30 Amp circuit breaker for 380-480V.

ELECTRICAL SPECIFICATIONS

Blower/

208V

240V

380V

480V

280V

230V

240V

Element

 

 

 

 

 

 

 

Phase

3

3

3

3

1

1

1

 

 

 

 

 

 

 

 

Circuit

208/240

208/240

208/240

208/240

208/240

208/240

208/240

 

 

 

 

 

 

 

 

kW

12

12

12

12

10

9.2

10

 

 

 

 

 

 

 

 

Frequency

50/60

50/60

50/60

50/60

50/60

50/60

50/60

 

 

 

 

 

 

 

 

Poles

3

4

4

4

2

2

2

 

 

 

 

 

 

 

 

Wires

4

5

5

5

3

3

2

 

 

 

 

 

 

 

 

L1

35.3

30.8

20.2

16.4

48.1

40.0

41.7

 

 

 

 

 

 

 

 

L2

35.3

30.8

18.2

14.4

48.1

40.0

41.7

 

 

 

 

 

 

 

 

L3

33.3

28.8

18.2

14.4

-

-

-

 

 

 

 

 

 

 

 

N

-

-

2.0

2.0

-

-

-

 

 

 

 

 

 

 

 

Figure 2-9. Typical PS528-Series Oven(s)

Installation

CAUTION

UNIT MUST HAVE AIR VENT PLATES

INSTALLED OR WARRANTY WILL BE VOID.

II. VENTILATION GUIDELINES

A mechanically driven ventilation system is recommended for the PS528 Series Middleby Marshall conveyorized electric ovens.

Local codes and conditions vary greatly from one area to another and must be complied with. Following are the sug- gested requirements for good ventilation. Please remember these are recommendations or guidelines, you may have a special condition or problem that will require the services of a ventilation engineer or specialist. Proper ventilation is the oven owner’s responsibility. Improper ventilation can inhibit oven performance.

Please Note: There are now two “stand off” ‘C’ Channels

that must be installed in the field (See Section 6: PARTS LIST, page 44-45 for reference, Item 5).

SUPPLY WIRE

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

SUGGESTED

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

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Contents Owners operating Page Middleby Marshall Table of Contents Section Description Model IdentificationSeries PS1828 Electrical Specifications PS528 Series Oven SpecificationsThis Manual Must Be Kept For Future Reference PS528-Series Oven Components Locations II. Component Function Cooling Fan F2. Blank Plates Section Installation UnloadingParts List for Series PS528 Electric Oven Installation KIT Single and Double Stack OvensModel PS528 Single Oven Dimensions Model PS528 Double Oven Dimensions Model 528 Triple Oven Dimensions II. Ventilation Guidelines Electric Supply to be Provided by Customer Circuit BreakerIV. Electric Supply for Electrically Heated Ovens 10. Typical Electric Oven Data PlateSection Installation Section Operation Control FunctionsDoor Safety Switch Blower SwitchHeat Switch Temperature ControllerConveyor Measuring Conveyor SpeedSee Figures 3-4 Startup Procedures Daily Startup Power FailureShutdown Procedure III. STEP-BY-STEP OperationControl Panel Daily Startup Procedure IV. Normal Operation STEP-BY-STEPSP Lock Quick Reference Troubleshooting SymptomSection Maintenance Maintenance Daily ExteriorCooling Fan Conveyor Belt FigureRemoving Conveyor From Oven For Cleaning II. Maintenance MonthlyQuantity Air Fingers Disassembly For Cleaning T1 T2 T3 B1 B2 B3 Reassembly of Air Fingers 12. Standard Lower FingerExtended Lip Tab on Outer Plate Flange Finger Manifold Incorrect Too Reinstall End Plugs Conveyor Reassembly Into Oven Checking Conveyor Belt TensionConveyor Belt Link Removal Attaching Drive Chain III. Maintenance Every 3 Months IV. Maintenance Every 6 MonthsImportant Notices Electrical TerminalsKEY Spare Parts KIT PS528-SERIES Electric Oven KEY Spare Parts KIT FigureSection Troubleshooting Problem Oven does not HeatSection Troubleshooting Parts List English Single Oven Exploded View English Relay Panel English Blower Assembly English Control Panel English Single Conveyor Section Parts List Section Electrical Schematics Wiring Diagram, E208-240V 50/60/3, PS528 P/N 62309 REV B Wiring Diagram, E380-480V 50/60/3, PS528 P/N 62310 REV B Wiring Diagram, E380V 50/60/3 CE PS528 P/N 63969 REV B Section Electrical Schematics