Middleby Marshall Convection Oven PS360 U User Manual

PS300 Series

P/N 46486

Gas and Electric (Europe)

ENGLISH/Danish

Rev B • V1 • 7/01

PS300 Series Gas and Electric Ovens

Models:

Combinations:

•

PS360-U, PS360-L Gas

•

SingleOven

PS360-U, PS360-L Electric

PS360WB-U, PS360WB-L Gas

DoubleOven(Two-Stack)

OWNER'S OPERATINGAND

INSTALLATIONMANUAL

for European export ovens

SingleOven

DoubleOven

PS360

PS360WB

PS360

PS360WB

Rated Heat Input

Gas Ovens

40kW

50kW

2x40kW

2x50kW

Rated Heat Input

Electric Ovens

26kW

2x26kW

HeatingZones

1 controlled heat zone

2 controlled heat zones

Middleby Cooking Systems Group • 1400 Toastmaster Drive • Elgin, IL 60120 • USA • (847)741-3300 • FAX (847)741-4406

Download from Www.Somanuals.com. All Manuals Search And Download.

TABLEOFCONTENTS

page

SECTION1-DESCRIPTION ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Iꢀ OVEN USES ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

IIꢀ OVENCOMPONENTS ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Aꢀ Crumb Pans ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Bꢀ Conveyor Drive Motor ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Cꢀ Conveyor ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Dꢀ End Plugs ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Eꢀ Serial Plate ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Fꢀ Window ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Gꢀ Machinery Compartment Access Panelꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Hꢀ Control Compartment Access Panel ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

VIIꢀ ELECTRICAL SUPPLY ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ11

Aꢀ Additional Information - Gas Ovensꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ11

Bꢀ Additional Information - Electric Ovens ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ11

Cꢀ Connection ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ11

VIIIꢀ GASSUPPLY ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ11

Aꢀ Gas Utility Rough-in Recommendations ꢀꢀꢀꢀꢀꢀꢀ12

Bꢀ Connection ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ12

Cꢀ Preparation for Use with Various Gases ꢀꢀꢀꢀꢀꢀꢀ13

Dꢀ Replacing the Gas Orifices ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ13

Eꢀ Checking the Gas Supply (Inlet) Pressure ꢀꢀꢀꢀ14

Fꢀ Adjusting the Orifice (Manifold) Pressure

and Heat Input ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ14

Iꢀ

Control Panelꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Jꢀ Eyebrows ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Kꢀ Conveyor End Stopꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Lꢀ Gas Burner or Heating Elements ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Mꢀ Blowersꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Nꢀ Air Fingers ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

IIIꢀ OVENSPECIFICATIONS ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Aꢀ Dimensions ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Bꢀ General Specificationsꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4

Cꢀ Electrical Specifications ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 5

Dꢀ Gas Orifice and Pressure Specificationsꢀꢀꢀꢀꢀꢀꢀꢀ 5

SECTION3-OPERATION ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ15

Iꢀ

LOCATION AND DESCRIPTION OF CONTROLS ꢀ15

Aꢀ "BLOWER" ( ) Switch ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ15

Bꢀ "HEAT" ( ) Switch ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ15

Cꢀ "CONVEYOR" (

) Switch ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ15

Dꢀ "RESET" ( ) Switch ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ15

Eꢀ Conveyor Speed Controller ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ15

Fꢀ Digital Temperature Controller ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ15

Gꢀ Machinery Cptꢀ Access Panel Safety Switch ꢀꢀ15

IIꢀ NORMALOPERATION,STEP-BY-STEP ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ16

Aꢀ Daily Startup Procedures ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ16

Bꢀ Daily Shutdown Procedures ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ16

IIIꢀ QUICK REFERENCE: DIGITAL TEMP CONTROLꢀ17

IVꢀ QUICK REFERENCE: TROUBLESHOOTING ꢀꢀꢀꢀꢀꢀꢀ 18

SECTION2-INSTALLATIONꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 5

Iꢀ INSTALLATIONKIT ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 6

IIꢀ VENTILATIONSYSTEM ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 7

Aꢀ Requirements ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 7

Bꢀ Recommendations ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 7

Cꢀ Other Ventilation Concerns ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 7

IIIꢀ ASSEMBLY ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 8

Aꢀ Caster Removalꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 8

Bꢀ Stacking ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 8

Cꢀ Stands ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 8

Dꢀ Flue Vent(s) ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 8

IVꢀ THERMOCOUPLEINSTALLATION ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 8

Vꢀ CONVEYORINSTALLATION ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 9

VIꢀ FINALASSEMBLY ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ10

SECTION4-MAINTENANCE ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ19

Iꢀ

MAINTENANCE-DAILYꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ19

IIꢀ MAINTENANCE-MONTHLY ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ20

IIIꢀ MAINTENANCE - EVERY 3 MONTHS ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ21

IVꢀ MAINTENANCE - EVERY 6 MONTHS ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ22

Vꢀ KEY SPARE PARTS KIT ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ22

SECTION5-ELECTRICALWIRINGDIAGRAMS ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ23

Iꢀ

WIRING DIAGRAM, PS360-U/-L ELECTRIC OVEN,

380-400V, 50Hz, 1Phꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ23

IIꢀ WIRING DIAGRAM, PS360-U/-L OR PS360WB-U/-L

GAS OVEN, 220-230V, 50Hz, 1 Phꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ24

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SECTION1-DESCRIPTION

Not Shown:

Iꢀ OVEN USES

Jꢀ Eyebrows (on ovens so equipped): Can be adjusted to

PS300 Series Ovens can be used to bake and/or cook a

wide variety of food products, such as pizza, pizza-type

products, cookies, sandwiches and othersꢀ

various heights to prevent heat loss into the environmentꢀ

Kꢀ ConveyorEndStop: Preventsfoodproductsfromfallingoff

the end of the moving conveyorꢀ

Lꢀ Gas Burner (gas ovens) or Heating Elements (electric

ovens): Heats air, which is then projected to the air fingers

by the blowersꢀ

IIꢀ OVEN COMPONENTS - see Figure 1-1ꢀ

Aꢀ Crumb Pans: Catch crumbs and other material that drop

through the conveyor beltꢀ One crumb pan is located

underneath each end of the conveyorꢀ

Mꢀ Blowers: Fans that project hot air from the burner to the air

fingersꢀ

Bꢀ Conveyor Drive Motor: Moves the conveyorꢀ

Cꢀ Conveyor: Moves the food product through the ovenꢀ

Dꢀ End Plugs: Allow access to the oven's interiorꢀ

Nꢀ AirFingers: Projectstreamsofhotairontothefoodproductꢀ

Figure 1-1 - Oven Components

Eꢀ SerialPlate: Providesspecificationsfortheoventhataffect

installation and operationꢀ

Fꢀ Window: Allows the user to see and access food products

inside the baking chamberꢀ

Gꢀ Machinery Compartment Access Panel: Allows access

to the oven's interior componentsꢀ No user-servicable

parts are located in the machinery compartmentꢀ

Hꢀ Control Compartment Access Panel: Allows access to

the control componentsꢀ No user-servicable parts are

located in the control compartmentꢀ

Iꢀ

Control Panel: Location of the operating controls for the

ovenꢀ

H,I

IIIꢀ OVEN SPECIFICATIONS

Table 1-1: Dimensions

PS360U, PS360L

PS360WB-U, PS360WB-L

Overall Height

Lower oven, with top and legs

1143mm

1638mm

2089mm

1194mm

2299mm

813mm

1143mm

1638mm

2089mm

1397mm

2299mm

1016mm

2 x 483mm

Upper oven, with stand and top

Double oven (two-stack)

Overall Depth (including rear shrouds and front window)

Overall Length

Conveyor Width, Single Belt Ovens

Conveyor Width, Split Belt Ovens

Recommended Minimum Clearances

Rear of oven (inc) rear shrouds) to wall

Conveyor extension to wall (both ends)

2 x 381mm

25mm

0mm

25mm

0mm

Table 1-2: General specifications (per oven cavity)

PS360U, PS360L Gas

PS360-U, PS360-L Electric

PS360WB-U, PS360WB-L Gas

Weight

583kg

617kg

3)00m³

26kW

674kg

Shipping Weight

Shipping Carton Vol,

Rated Heat Input

Max, Operating Temp,

Air Blowers

617kg

3)00m³

708kg

3)65m³

34,020kcal, 40kW

42,840kcal, 50kW

< - - - - - - - - - - - - - - - - - -

288°C

- - - - - - - - - - - - - - - - - - >

< - - - - - - -

2 blowers at 43)9m³/min) at 1700 RPM,

- - - - - - - >

2)2cm water static pressure

Air Jet Velocity (avg,)

< - - - - - - - - - - - - - - -

1320cm/sec)

- - - - - - - - - - - - - - - >

- - - - - - - - - - - - - - - - >

Warmup Time

< - - - - - - - - - - - - - - - -

15 minutes

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Table 1-3: Electrical specifications (per oven cavity)

Main Blower

Voltage

Control

Circuit Voltage

Current

Draw *

Oven Model

Gas Ovens

Phase

1 Ph

Freq,

50 Hz

Poles

2 Pole

Wires

220-230V

380-400V

120V (transformer)

3 Wire (1 hot, 1 neut, 1 gnd)

5 Wire (3 hot, 1 neut, 1 gnd)

Electric Ovens

1 Ph

39A

* CAUTION: The current draw shown in the chart above is an average value for normal operation) The initial amperage draw on oven startup

may exceed the listed value)

IMPORTANT: Additional electrical information is provided on the oven's serial plate, and on the wiring diagram inside the machinery compartment)

Table 1-4: Gas orifice and pressure specifications (per oven cavity)

Supply (inlet) Pressure (mbar)

IE,IT,

PT,ES,

AT,CH,

Orifice

Main

Orifice

dia)

Pilot

Orifice

dia)

Bypass

Orifice

dia)

DK,FI, (manifold) Rated

BE,FR

II_2E+3+

II_2H3B/P

pressure Heat

(mbar)

Supply

Volume

Gas

Flow

Gas Type

II_2H3+II_2ELL3B/PII_2L3B/P

Input

PS360U, PS360L

Natural, G20

Natural, G25

Natural, G20, G25

Liquid, G30

Liquid, G30, G31

5ꢀ50mm

4ꢀ50mm

2ꢀ70mm

3ꢀ10mm

0ꢀ635mm

0ꢀ381mm

1ꢀ65mm

1ꢀ50mm

0ꢀ85mm

0ꢀ95mm

29-37

20-25

6ꢀ8

10ꢀ5

6ꢀ8-10ꢀ5

40kw

4ꢀ2m³h

70ꢀ0

81ꢀ7

/min

40kw 4ꢀ2-4ꢀ9m³h 70ꢀ0-81ꢀ7

/min

28-30 29-37

40kw

3ꢀ1kg/h

PS360WB-U, PS360WB-L

Natural, G20

Natural, G25

Natural, G20, G25

Liquid, G30

Liquid, G30, G31

6ꢀ30mm

0ꢀ635mm

0ꢀ381mm

2ꢀ30mm

2ꢀ00mm

1ꢀ40mm

29-37

20-25

6ꢀ8

10ꢀ5

6ꢀ8-10ꢀ5

50kw

5ꢀ3m³h

6ꢀ1m³h

88ꢀ0

102ꢀ4

/min

6ꢀ30mm

5ꢀ40mm

3ꢀ10mm

3ꢀ50mm

/min

50kw 5ꢀ3-6ꢀ1m³h 88ꢀ0-102ꢀ4

28-30 29-37

30 --

50kw

3ꢀ9kg/h

* Pressure regulator (governor) not in operation, system at supply (inlet) pressure)

Orifice pressures apply to 15°C, 1)013mbar dry gas)

SECTION2-INSTALLATION

WARNING - After any conversions, readjustments, or service work on the oven:

•

Perform a gas leak test&

Test for correct air supply, particularly to the burner blower&

Test for proper combustion and gas supply&

Check that the ventilation system is in operation&

WARNING

Keep the appliance area free and clear of combustibles&

WARNING

The oven must be installed on an even (level) non-flammable flooring and any adjacent walls must be non-

flammable& Recommended minimum clearances are specified in the Description section of this Manual&

WARNING

Do not obstruct the flow of combustion and ventilation air to and from your oven& There must be no

obstructions around or underneath the oven& Constructional changes to the area where the oven is

installed shall not affect the air supply to the oven&

NOTE

There must be adequate clearance between the oven and combustible construction& Clearance

must also be provided for servicing and for proper operation&

NOTE

An electrical wiring diagram for the oven is located inside the machinery compartment&

NOTE

All aspects of the oven installation, including placement, utility connections, and ventilation requirements,

must conform with any applicable local, national, or international codes# These codes supercede the require-

ments and guidelines provided in this manual#

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SECTION2-INSTALLATION

Iꢀ INSTALLATION KIT

Figꢀ 2-1 - Installation Kit

Aꢀ Installation kit components (one kit required per cavity)

Item

Description

PartNumber

LowerOvenw/oTop LowerOvenw/Top

UpperOven

Legs, adjustable

22450-0028

Conveyor End Stop - PS360/360S

•

Single Belt

Split Belt

35000-1103

35509

Conveyor End Stop - PS360WB (Single or Split Belt)

Attachment Plate, upper oven

Thermocouple

36526

35122-0049

33812-1

Screw, #10-32 x 3/8"

21256-0008

27276-0001

21292-0001

46486

CableClamp

Screw, #2PT 10-16 x 3/4" HWH

Owner's Operating and Installation Manual

Authorized Service Agency Listing

1002040

Bꢀ Additional installation kit components for gas ovens

Item

Description

PartNumber

21256-0008

21292-0001

22361-0001

30773

LowerOvenw/oTop LowerOvenw/Top

UpperOven

Screw, #10-32 x 3/8"

Screw, #2PT 10-16 x 3/4" HWH

Gas hose, flexible

11a

11b

11cFlue

Flue vent, 14" (356mm)

Flue vent, 29-1/2" (749mm)

30759

vent,

50"

(1270mm)

30758

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SECTION2-INSTALLATION

Bꢀ Recommendations

IIꢀ VENTILATION SYSTEM

NOTE THAT THE HOOD DIMENSIONS SHOWN IN FIGURE 2

ARE RECOMMENDATIONS ONLYꢀ LOCAL, NATIONAL, AND

INTERNATIONAL CODES MUST BE FOLLOWED WHEN

INSTALLINGTHEVENTILATIONSYSTEMꢀ ANYAPPLICABLE

LOCAL AND NATIONAL CODES SUPERSEDE THE

RECOMMENDATIONSSHOWNINTHISMANUALꢀ

IMPORTANT

Where national or local codes require the

installation of fire suppression equip-

ment or other supplementary equipment,

DO NOT mount the equipment directly to

the oven(

The rate of air flow exhausted through the ventilation system

may vary depending on the oven configuration and hood designꢀ

Consult the hood manufacturer or ventilation engineer for these

specificationsꢀ

MOUNTING SUCH EQUIPMENT ON

THE OVEN MAY:

To avoid a negative pressure condition in the kitchen area,

return air must be brought back to replenish the air that was

exhaustedꢀ A negative pressure in the kitchen can cause heat-

related problems to the oven components as if there were no

ventilation at allꢀ The best method of supplying return air is

through the heating, ventilation and air conditioning (HVAC)

systemꢀ Through the HVAC system, the air can be temperature-

controlled for summer and winterꢀ Return air can also be

brought in directly from outside the building, but detrimental

effects can result from extreme seasonal hot and cold

temperatures from the outdoorsꢀ

•

VOID AGENCY CERTIFICATIONS

RESTRICT SERVICE ACCESS

LEAD TO INCREASED SERVICE

EXPENSES FOR THE OWNER

Aꢀ Requirements

NOTE: Return air from the mechanically driven system must not

blow at the opening of the baking chamberꢀ Poor oven baking

performance will resultꢀ

CAUTION

Gas oven installations REQUIRE a mechanically driven

ventilation system with electrical exhaust air sensing controlꢀ

Cꢀ Other ventilation concerns

•

Special locations, conditions, or problems may require the

services of a ventilation engineer or specialistꢀ

A mechanically driven ventilation system is STRONGLY

RECOMMENDED for electric oven installationsꢀ

•

Inadequate ventilation can inhibit oven performanceꢀ

PROPER VENTILATION OF THE OVEN IS THE

RESPONSIBILITY OF THE OWNERꢀ

It is recommended that the ventilation system and duct

work be checked at prevailing intervals as specified by the

hood manufacturer and/or HVAC engineer or specialistꢀ

Figꢀ 2-2 - Ventilation System

51mm

minimum

76mm

305mm

458mm

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SECTION2-INSTALLATION

Figure 2-3 - Exploded View, Oven Stand

IIIꢀ ASSEMBLY

Aꢀ Caster Removal

After moving the ovens in to the installation location, remove the

castersattachedtoeachovencavityꢀ Thesecastersareprovided

for pre-installation movement ONLYꢀ

Bꢀ Stacking

Attachment

plates inc% w/

upper oven

If the installation will include upper ovens mounted atop lower

ovens, stack the oven cavitiesꢀ

installation kit

Cꢀ Stands

If the installation includes ovens that are to be mounted on

stands, assemble the ovens to the stands at this timeꢀ An

exploded view of the stand is shown in Figure 2-3ꢀ

Dꢀ FlueVent(s)

For gas ovens, attach one flue vent to the rear wall of each oven

cavityꢀ Use one #10-16 x 3/8" and two #10-32 x 3/4" screws for

each flue ventꢀ These screws are provided in the Installation Kitꢀ

Figure 2-4 - Thermocouple Installation Locations

IVꢀ THERMOCOUPLE INSTALLATION

1ꢀ Install one thermocouple sensing bulb into each of the two

holes in the rear panel of the oven, as shown in Figure 2-4ꢀ

Fasten each thermocouple in place using one of the #10-

32 x 3/8" screws supplied in the Installation Kitꢀ

Thermocouples

2ꢀ Thread BOTH sets of thermocouple leads through the

grommet and into the machinery compartment, as shown

in Figure 2-4ꢀ

3ꢀ Remove the right-side access panel of the machinery

compartmentꢀ

4ꢀ Thread the thermocouple leads through the side of the

machinery compartment as shown in Figure 2-5, and into

theelectricalbox(attheright-frontofthemachinerycompart-

ment)ꢀ

Grommet-protected hole

Figure 2-5 - Placing the Thermocouple Leads

5ꢀ Connect BOTH sets of thermocouple leads to the tempera-

ture controller as shown in Figure 2-6ꢀ Note that the two

thermocouples are now tied together at the temperature

controllerꢀ

6ꢀ Replace the right-side panel of the machinery compart-

mentꢀ

7ꢀ Repeat Steps 1-6 for any other oven cavities in the installa-

tionꢀ

Figure 2-6 - Thermocouple Lead Connections

8=White=Positive

7=Red=Negative

R=No Connection

Ground=Shieldedcable

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SECTION2-INSTALLATION

Figure 2-7 - Removing the Conveyor Drive Sprocket

Vꢀ CONVEYOR INSTALLATION

NOTE

Split belt conveyors can only be installed from the end of the

oven with the drive motorꢀ

Single-belt conveyor assemblies may be inserted into either

end of the ovenꢀ If it is to be installed from the end of the oven

without the drive motor, the drive sprocket assembly must be

removedꢀ

To remove the drive sprocket (if necessary), loosen the set

screw on the conveyor collar as shown in Figure 2-7ꢀ Then, pull

the sprocket assembly straight outꢀ

1ꢀ Lift the conveyor and position it in the oven as shown in

Figure 2-8ꢀ

Loosen conveyor collar

set screw, then pull shaft

straight out

Figure 2-8 - Inserting the Conveyor

2ꢀ Continue moving the conveyor into the oven until the frame

protrudesequallyfromeachendoftheoven(about457mm)ꢀ

Figure 2-9 - Conveyor retainers

3ꢀ Check that the retainers located on the underside of the

conveyor frame rest firmly against the lower end plug, as

shown in Figure 2-9ꢀ

NOTE:

Each oven has retainer clips on the bottom of the conveyor

frame, as shown in Figure 2-9ꢀ The clips are only located

on the left (drive) side of the frameꢀ

Retainer clip

4ꢀ When the conveyor is positioned properly, check for free-

dom of movement of the conveyor belt by pulling it for about

60 to 90 cm with your fingersꢀ The conveyor must move

freelyꢀ

5ꢀ If the drive sprocket was removed when installing the

conveyor, replace it at this timeꢀ

Figure 2-10 - Checking the conveyor tension

6ꢀ Install the drive chain between the conveyor drive sprocket

and the motor sprocketꢀ To install the chain, it will be

necessary to lift the drive end of the conveyor slightlyꢀ The

drive motor and sprocket are shown in Figure 2-7ꢀ

75-100mm

vertical

deflection

7ꢀ Install the conveyor drive motor cover and tighten its hanger

screw (on the rear wall of the oven)ꢀ

8ꢀ Check the tension of the conveyor belt as shown in Figure

2-10ꢀ The belt should lift between 75-100mmꢀ DO NOT

OVERTIGHTEN THE CONVEYOR BELTꢀ

Conveyor

tension

adjustment

screws (idler

end only)

NOTE:

If necessary, the belt tension can be adjusted by turning the

conveyor adjustment screws, located at the idler (right) end

of the conveyorꢀ See Figure 2-10ꢀ

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SECTION2-INSTALLATION

9ꢀ If necessary, links can be added to or removed from the

conveyorbelttoachievethecorrectdeflectionof75-100mmꢀ

If links must be removed from the belt, it can be reattached

to the conveyor as follows:

Figure 2-11 - Conveyor and Master Link Orientation

Direction

of travel

CORRECT

master link

position

aꢀ The conveyor belt links must be oriented as shown in

Figure 2-11ꢀ

bꢀ The smooth side of the conveyor belt must face UPꢀ

cꢀ Connect the inside master linksꢀ Check that the links

are oriented as shown in Figure 2-11ꢀ

Incorrect

master link

position

dꢀ Connect the outside master linksꢀ Note that the

outside master links have right and left sidesꢀ The

right-side master link has an open hook facing you, as

shown in Figure 2-11ꢀ

Outside master link

orientation

Inside master link

orientation

eꢀ Check for freedom of movement of the conveyor belt by

pulling it for about 60 to 90 cm with your fingersꢀ The

conveyor must move freelyꢀ

fꢀ

Return to Step 8, above, to re-check the belt tensionꢀ

Figure 2-12 - Crumb tray positions

VIꢀ FINAL ASSEMBLY

1ꢀ Assemble the end plugs and motor housing onto the ovenꢀ

Upper Oven

(Drive End)

2ꢀ Slidetheconveyorextensionsovertheendsoftheconveyor

frameꢀ Be sure that the extension with the drive sprocket

opening is placed on the drive endꢀ

Upper Oven

(Idler End)

3ꢀ Refer to Figure 2-12 for the correct location of each crumb

trayꢀ Then, install the crumb trays underneath the conveyor

as shown in Figure 2-13ꢀ First, place the inside edge of the

tray onto the bracket attached to the end plugꢀ Then, swing

the outside edge of the tray up and into placeꢀ

Lower Oven

4ꢀ Press the end stop down over the edge of the conveyor

extension at the exit end of the ovenꢀ See Figure 2-13ꢀ

5ꢀ Adjust the bottom section of the legs so that the oven is

levelꢀ

Figure 2-13 - Crumb trays, extensions, and end stop

End

stop

Conveyor extension

Conveyor frame

Crumb tray

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SECTION2-INSTALLATION

Aꢀ AdditionalInformation-GasOvens

VIIꢀ ELECTRICAL SUPPLY

All electric supply connections are made via the electrical

junction box on the rear of the oven, shown in Figure 2-14ꢀ The

power lines then connect to the oven circuits through safety

switches located inside the machinery compartment and each

blower motor compartmentꢀ These switches interrupt electric

power to the oven when the Machinery Compartment Access

Panel is opened, OR when either of the blower or rear shrouds

is removedꢀ

WARNING

Authorized supplier personnel normally accomplish

the connections for the ventilation system, electric supply,

and gas supply, as arranged by the customerꢀ Following

these connections, the factory-authorized installer can

perform the initial startup of the ovenꢀ

NOTE: All aspects of the electrical supply connection must

comply with current IEC/CEE requirements and with all

applicable local, national, and international codesꢀ

Bꢀ Additional Information - Electric Ovens

A cutout in the back wall of the machinery compartment provides

access to the electrical supply connectionsꢀ See Figure 2-14ꢀ

The actual wiring connections are made at the electrical junction

boxꢀ

Check the oven serial plate before making any electric supply

connectionsꢀ Electric supply connections must agree with data

on the oven serial plateꢀ The location of the serial plate is shown

in Figure 1-1 (in Section 1, Description)ꢀ

Cꢀ Connection

A fused disconnect switch or a main circuit breaker (customer

furnished) MUST be installed in the electric supply line for each

oven cavityꢀ The circuit breaker/disconnect must have 3mm

contact gaps breaking all poles of the supplyꢀ It is recommended

thatthiscircuitbreaker/disconnecthavelockout/tagoutcapabilityꢀ

Refer to the wiring diagram inside the machinery compartment,

or in Section 5 of this Manual, to determine the correct

connections for the electrical supply linesꢀ Connect the supply

as indicated on the wiring diagramꢀ

The supply conductors are to be 90°C-rated copper wiringꢀ

Additional wiring information is shown on the wiring diagrams

in Section 5, Electrical Wiring Diagrams and inside the machin-

ery compartment of the ovenꢀ

If required by national or local codes, connect an equipotential

ground wire to the lug next to the

symbolꢀ The equipotential

ground connection must meet all applicable national and lo-

cal code requirementsꢀ

The oven requires a ground connection to the oven ground

screw located in the electrical junction boxꢀ (The box is shown

in Figure 2-14ꢀ) The ground connection must comply with

current IEC/CEE requirements and with all applicable local,

national, and international codesꢀ If necessary, have the

electrician supply the ground wireꢀ Do NOT use the wiring

conduit or other piping for ground connections!

Figure2-14-UtilityConnectionLocations

VIIIꢀ GAS SUPPLY

Electrical

Junction Box

CAUTION

DURINGPRESSURETESTINGNOTEONEOFTHEFOLLOW-

ING:

1ꢀ The oven and its individual shutoff valve must be

disconnected from the gas supply piping system during

any pressure testing of that system at test pressure in

excess of 3ꢀ45 kPaꢀ

Gas ovens:

19mm pipe for

2ꢀ The oven must be isolated from the gas supply piping

system by closing its individual manual shutoff valve

during any pressure testing of the gas supply piping

system at test pressure equal to or less than 3ꢀ45 kPaꢀ

gas utility connection

3ꢀ If incoming pressure is over 50mbar, a separate regu-

latorMUSTbeinstalledinthelineBEFOREtheindividual

shutoff valve for the ovenꢀ

Electric ovens:

Cutout for electrical

connection

WARNING: Topreventdamagetothecontrolvalveregu-

lator during initial turn- on of gas, it is very important to

open the manual shutoff valve very slowlyꢀ

Aftertheinitialgasturn-on,themanualshutoffvalvemust

remain open except during pressure testing as outlined

in the above steps or when necessary during service

maintenanceꢀ

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SECTION2-INSTALLATION

Aꢀ GasUtilityRough-InRecommendations

Check the oven’s gas supply requirements before making the

gas utility connectionꢀ Gas supply requirements are listed on

the oven’s serial plateꢀ

The following gas system specifications are STRONGLY

RECOMMENDEDꢀ Deviating from these recommendations

may affect the baking performance of the ovenꢀ

Check the serial plate to determine the type of gas to be used

with the ovenꢀ Check that the gas type indicated matches the

local supply at the installationꢀ If the gas type on the serial plate

does NOT match the local supply, directions for converting the

oven for use with other gases are described in Preparation for

Use with Various Gases, in this sectionꢀ

Gas Meter

•

One or two oven cavities: 354

Three or four oven cavities: 566

/sec meter

Gas Line

•

DEDICATED LINE from the gas meter to the oven

50ꢀ8mm pipe for natural gas

38ꢀ1mm pipe for propane

Maximum length: 61mꢀ Each 90° elbow equals 2ꢀ13m of

pipeꢀ

Refer to the instructions in the gas hose package (included in

the Installation Kit) before connecting the gas lineꢀ One gas line

connection method is shown in Figure 2-15; however,

compliance with the applicable standards and regulations is

mandatoryꢀ

Bꢀ Connection

Figure 2-15 - Flexible Gas Hose Installation

WARNING

Some procedures in this section may require conver-

sions, readjustments, or service on the oven's gas systemꢀ

Before performing these procedures, check that the main

gas supply valve and the circuit breaker/fused disconnect

are in the OFF ("O") positionꢀ After completing these proce-

dures, perform a gas leak test before operating the ovenꢀ

To Gas

Supply Pipe

Appliance

Connection/Male

Nipple

CAUTION

The terms of the oven's warranty require all start-ups, conver-

sions and service work to be performed by a Middleby Marshall

AuthorizedServiceAgentꢀ Theinstallation,start-upandchanges

required when changing from one gas type to another can be

performed ONLY by a certified professionalꢀ

Full-Flow Gas

Shutoff Valve

90°

Elbow

NOTE: The gas supply connection should be according to

applicable ISO 228-1 or ISO 7-1 recommendationsꢀ All aspects

of the gas supply connection must comply with current IEC/CEE

requirements and with all applicable local, national, and inter-

national codesꢀ

Flexible

Gas Hose

Figure 2-16 - Gas Burner and Piping Assembly

Supply (inlet)

pressure tap

Orifice

(manifold)

pressure tap

Multifunction Gas Valve

BurnerBlower

High Flame

Solenoid Valve

Governor

disabled for

liquid

propane (LP)

operation

Gas Burner

Governor

enabled for

natural gas

operation

Multifunction

Gas Valve

Pilot Line

Low Flame

Bypass Line

Union

Pilot pressure tap

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SECTION2-INSTALLATION

Dꢀ Replacing the Gas Orifices (if so required)

Cꢀ Preparation for Use with Various Gases

Before proceeding to set up the oven for a specific gas, check

that the main gas supply valve and the circuit breaker/fused

disconnect are in the OFF ("O") positionꢀ

1ꢀ Replacing the Main Orifice

aꢀ Check that the main gas supply valve and the circuit

breaker/fused disconnect are in the OFF ("O") positionꢀ

The main and pilot orifices must match the sizes shown in the

Gas Orifices and Pressure Specifications table, near the

beginning of this Sectionꢀ If necessary, replace the orificesꢀ

Refer to Part D, Replacing the Gas Orificesꢀ

bꢀ Open the union in the gas supply lineꢀ The union is

shown in Figure 2-16, on the previous pageꢀ

cꢀ Refer to Figure 2-17ꢀ Unscrew the four hex screws that

hold the venturi mounting plate to the front of the

burnerꢀ Remove the gas train/venturi assembly from

the ovenꢀ

The orifice (manifold) pressure should be adjusted to the value

shown in the Gas Orifices and Pressure Specifications table for

the specific gas type and locationꢀ

dꢀ Remove the two 1/2" nuts that secure the gas train to

the venturi mounting plateꢀ

1ꢀ For Use with Natural Gas

eꢀ Remove the main orifice using an 11/16" wrenchꢀ

The actual heat input to the oven must match the rated heat

inputꢀ The input to the burner can be determined using the

orifice (manifold) pressure data or by the volume supplied

using the gas meterꢀ Both of these procedures are

describedinPartF,AdjustingtheOrifice(Manifold)Pressure

and Heat Inputꢀ

fꢀ

Install the new orificeꢀ

2ꢀ Replacing the Pilot Orifice

NOTE: All natural gases use the same size pilot orifice

(0,635mm), as do all liquid propane (LP) gases (0,381mm)ꢀ

Because of this, it is not normally necessary to replace the

pilot orifice unless converting the oven from natural to

propane, or from propane to natural, operationꢀ

If the measured input does not correspond with the rated

input(shownintheGasOrificesandPressureSpecifications

table), check first that the correct orifices are installedꢀ If the

orifices are correct, check and correct the supply and orifice

pressures to obtain the correct input based on the gas

meter readingꢀ

aꢀ Refer to Figure 2-17ꢀ Unscrew the pilot tube

compression nut and slide it out of the wayꢀ Pull the

tube from the fitting to expose the pilot orificeꢀ

bꢀ Remove the pilot orificeꢀ

2ꢀ For Use with Liquid Propane (LP) Gas

cꢀ Slip the new pilot orifice into the pilot tubeꢀ

When using liquid gas, the converter in the multifunction

gas valve must be removed, and then replaced INVERTED

from its former positionꢀ See Figure 2-16ꢀ Inverting the

converter will disable the governorꢀ This step is only

required if the supply pressure is below 50mbarꢀ

dꢀ Push the pilot tube back into place until it bottoms, and

hold it in placeꢀ Slide the compression nut back into

place and engage the threadsꢀ Tighten the nut to a

snug fit with your fingersꢀ

eꢀ Gently tighten the nut one complete turn with a wrenchꢀ

DO NOT OVERTIGHTEN THE COMPRESSION NUTꢀ

3ꢀ Replacing the Bypass (Low Flame) Orifice

aꢀ Refer to Figure 2-16ꢀ Note the locations of the 1/2" hex

compression nuts that hold the bypass line in placeꢀ

Loosen the compression nuts using a 1/2" wrenchꢀ

Figure 2-17 - Replacing the Main and Pilot Orifices

bꢀ Remove the bypass tubeꢀ Then, remove the bypass

orifice from the tubeꢀ

cꢀ Slip the new orifice into the bypass tubeꢀ

dꢀ Replace the tube onto its fittings on the solenoid valveꢀ

While holding the tube in place, slide the compression

nuts back into place and engage the threadsꢀ Tighten

the nut to a snug fit with your fingersꢀ

Venturi

assembly

eꢀ Gentlytightenthenutsonecompleteturnwithawrenchꢀ

DONOTOVERTIGHTENTHECOMPRESSIONNUTSꢀ

Pilot

orifice

fꢀ

Replace the gas train and venturi by following Steps a-

dinReplacingtheMainOrifice, above, inreverseorderꢀ

Compression

nut

WARNING

After completing these procedures, perform a gas

leak test before operating the ovenꢀ

Pilot tube

Main

orifice

Main orifice

holder (attached

to gas train)

Ignition

sensor

wire

Venturi

mounting

plate

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SECTION2-INSTALLATION

Eꢀ Checking the Gas Supply (Inlet) Pressure

2ꢀ Volumetric Method

1ꢀ Remove the supply (inlet) pressure cap screw from the

multifunction gas valveꢀ Attach a manometer to the studꢀ

aꢀ Determine the time of 0ꢀ1m³(100 liters) of gas usage

as followsꢀ

2ꢀ Depress the machinery compartment safety switch to

allow the oven to operateꢀ

NB (Rated input in kW)

Consumption (m³/hrꢀ) =

HuB (Heat [Calorific] value

of gas in kW/m3)

3ꢀ Open the main gas supply valveꢀ Switch the circuit breaker/

fused disconnect to the ON ("I") positionꢀ

4ꢀ Start the oven and adjust the temperature controller to the

maximum setting (288°C)ꢀ

Time (in minutes) of

0ꢀ1m3 of gas usage

Consumption

5ꢀ Measure the supply (inlet) pressureꢀ

bꢀ Check that the main gas supply valve and the circuit

breaker/fused disconnect are in the OFF ("O") positionꢀ

6ꢀ Switch the oven offꢀ Close the main gas supply valve, and

switch the circuit breaker/fused disconnect to the OFF ("O")

positionꢀ Remove the manometer, and replace the cap

screw onto the multifunction gas valveꢀ

cꢀ Remove the cap screw from the pressure adjustment

screw (governor) on the multifunction gas valveꢀ

7ꢀ Compare the measured supply (inlet) pressure to the

nominal pressures shown in the Gas Orifices and Pressure

Specifications tableꢀ

dꢀ Depress the machinery compartment safety switch to

allow the oven to operateꢀ

eꢀ Open the main gas supply valveꢀ Switch the circuit

breaker/fused disconnect to the ON ("I") positionꢀ

If the supply pressure is lower or higher than the nominal

pressure, the reason should be investigated and the gas

supplier contactedꢀ

fꢀ

Start the oven and adjust the temperature controller to

the maximum setting (288°C)ꢀ

For natural gas ovens, if the measured supply pressure is lower

than 17mbar, or higher than 25mbar, contact the gas supplierꢀ

DO NOT OPERATE THE OVEN or adjust the oven controlsꢀ

gꢀ Adjust the pressure adjustment screw as necessary

to match the calculated volume using the time (in

minutes) of 0ꢀ1m³of gas usageꢀ Turning the

adjustment screw clockwise increases the flow, while

turning it counterclockwise reduces the flowꢀ

Fꢀ AdjustingtheOrifice(Manifold)PressureandHeatInput

To use the orifice pressure method, you must know the specific

gas type and quality usedꢀ If using the orifice pressure method,

you should double-check the input using the volumetric methodꢀ

hꢀ Record the reading obtained from the gas meter and

calculate the obtained gas flowꢀ Compare this value

to the information in the Gas Orifices and Pressure

Specifications tableꢀ

To use the volumetric method, you must know the heat value

(HuB) of the gas usedꢀ This information is available from your

gas supplierꢀ

iꢀ

Switch the oven offꢀ Close the main gas supply valve,

and switch the circuit breaker/fused disconnect to the

OFF ("O") positionꢀ Replace the cap screw onto the

multifunction gas valveꢀ

During these measurements, do not operate any other

appliances that use the same gas meter as the ovenꢀ

1ꢀ Orifice (Manifold) Pressure Method

aꢀ Check that the main gas supply valve and the circuit

breaker/fused disconnect are in the OFF ("O") positionꢀ

bꢀ Remove the regulated (manifold) pressure cap screw

from the multifunction gas valveꢀ Attach a manometer

to the studꢀ

cꢀ Remove the cap screw from the pressure adjustment

screw (governor) on the multifunction gas valveꢀ

dꢀ Depress the machinery compartment safety switch to

allow the oven to operateꢀ

eꢀ Open the main gas supply valveꢀ Switch the circuit

breaker/fused disconnect to the ON ("I") positionꢀ

fꢀ

Start the oven and adjust the temperature controller to

the maximum setting (288°C)ꢀ

gꢀ Adjust the pressure adjustment screw as necessary

to match the correct pressure for the oven's specific

gas typeꢀ Refer to the Gas Orifices and Pressure

Specifications tableꢀ Turning the adjustment screw

clockwise increases the flow, while turning it

counterclockwise reduces the flowꢀ

hꢀ Switch the oven offꢀ Close the main gas supply valve,

and switch the circuit breaker/fused disconnect to the

OFF ("O") positionꢀ Remove the manometer, and

replace the cap screws onto the multifunction gas

valveꢀ

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SECTION3-OPERATION

Iꢀ LOCATION AND DESCRIPTION OF CONTROLS

Figꢀ 3-1 - Control Panel

Conveyor Speed

") controller(s)

"HEAT"

"CONVEYOR"

(" ")

switch

"BLOWER"

Digital Temperature

"RESET"

(" ") controller

switch

(

) switch

GAS OVENS ONLY

Aꢀ

Bꢀ

"BLOWER" Switch: Turns the blowers and

cooling fans on and offꢀ The HEAT Switch has

no effect unless the BLOWER Switch is in the

“ON” positionꢀ

Eꢀ

Conveyor Speed Controller: Adjusts and dis-

plays the bake timeꢀ Single-belt ovens have one

controllerꢀ Split belt ovens have one controller

for each conveyor belt, labeled "FRONT" and

"BACKꢀ"

"HEAT" Switch: Allows the burner or heating

elements, as appropriate for the oven model, to

activateꢀ Activation is determined by the set-

tings on the Digital Temperature Controllerꢀ

Fꢀ

Digital Temperature Controller: Continuously

monitors the oven temperatureꢀ Settings on the

Digital Temperture Controller control the acti-

vation of the burner or heating elementsꢀ

Cꢀ

Dꢀ

"CONVEYOR"Switch: Turnstheconveyordrive

motor on and offꢀ

NOT SHOWN:

Gꢀ Machinery Compartment Access Panel Safety Switch:

Disconnects electrical power to the controls and the blow-

ers when the machinery compartment access panel is

openedꢀ The panel should only be opened by authorized

service personnelꢀ

"RESET" Switch: Gas ovens onlyꢀ Illuminates

if the gas burner does not lightꢀ The switch can

be pressed repeatedly to attempt to light the

burnerꢀ If the burner does not light within 15

minutes, the"RESET"(

)switchislockedoutꢀ

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SECTION3-OPERATION

7ꢀ (Gasovensonly)Ifthe"RE-

IIꢀ NORMAL OPERATION - STEP-BY-STEP

SET" ( ) switch illumi-

Aꢀ DAILYSTARTUPPROCEDURE

nates, the gas burner did

1ꢀ Check that the circuit breaker/fused disconnect is in the on

positionꢀ Check that the window is closedꢀ

not lightꢀ Press the "RE-

SET" ( ) switch (repeat-

edly if necessary) to attempt to light the burnerꢀ

NOTE: If the burner does not light within 15 minutes, the

oven enters a safety lockout mode that disables the "RE-

SET" ( ) switchꢀ If this occurs, turn the "HEAT" ( ),

2ꢀ Turnthe"BLOWER" (

)

switch to the “ON” ("I")

positionꢀ

"BLOWER" ( ), and "CONVEYOR" (

) switches to the

"OFF" ("O") positionꢀ Wait for AT LEAST FIVE MINUTESꢀ

Then, repeat the Daily Startup procedureꢀ

3ꢀ Turn the "CONVEYOR"

(

) switch to the “ON”

("I") positionꢀ

7ꢀ Waitfortheoventoheattothesetpointtemperatureꢀ Higher

setpoint temperatures will require a longer waitꢀ The oven

can reach a temperature of 232°C in approximately 5

minutesꢀ

4ꢀ If necessary, adjust the

conveyor speed setting

by pressing the

8ꢀ (Optional)PresstheTem-

pushbuttons on the con-

veyor speed controller to

change the displayed

bake timeꢀ

perature ( ) key to show

the Actual Temperature

in the display, and wait

wait

for

mins

secs

for the "ACTUAL TEMP"

light to turn onꢀ This al-

lows you to monitor the

oven temperature as it

rises to the setpointꢀ

Some ovens may be

equipped

with

thumbwheel speed con-

trollerꢀ For these ovens,

turn

the

three

thumbwheels to change

the displayed bake timeꢀ

9ꢀ Allow the oven to preheat for 10 minutes after it has reached

the set point temperatureꢀ

thumbwheels

5ꢀ Adjust the temperature

controller to a desired set

temperature, if neces-

saryꢀ

Bꢀ DAILYSHUTDOWNPROCEDURE

wait

for

1ꢀ Turnthe"HEAT"( )and

"BLOWER" ( ) swit-

ches to the "OFF" ("O")

•

Press the Set Point

and Unlock keys at

the same timeꢀ Wait

forthe"SETPT"light

to turn onꢀ

positionꢀ Note that the

blowers will remain in op-

eration until the oven has

cooled to below 93°Cꢀ

•

Press the Up Arrow

and Down Arrow

Keys as necessary

to adjust the set-

pointꢀ

2ꢀ Make certain that there

are no products left on

the conveyor inside the

ovenꢀ Turn the "CON-

VEYOR" (

) switch to

the "OFF" ("O") positionꢀ

6ꢀ Turn the "HEAT" (

)

3ꢀ Open the window to allow the oven to cool fasterꢀ

switch to the "ON" ("I")

position, and wait for the

"HEAT ON" light to turn

onꢀ

4ꢀ After the oven has cooled and the blowers have turned off,

switch the circuit breaker/fused disconnect to the off posi-

tionꢀ

CAUTION

wait

for

In case of power failure, turn all switches to the “OFF” ("O")

position, open the oven window, and remove the productꢀ

After the power has been restored, perform the normal

startup procedureꢀ

Ongasovens,theburnerwillnotoperateandgaswillnot

flow through the burner without electric powerꢀ No

attempt should be made to operate the oven during a

power failureꢀ

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SECTION3-OPERATION

IIIꢀ QUICK REFERENCE: DIGITAL TEMPERATURE CONTROLLER

Display

"HEAT ON" Light

Shows the Set Point or

the Actual Tempera-

ture in degrees Fahr-

enheit (F) or Celsius

(C)ꢀ

Lights when the

burner or heating ele-

ments, as appropriate

for the oven model,

are in operationꢀ

"SP LOCK" Light

Lights when the set

point is locked out

from changesꢀ This

setting can only be

changed by service

personnelꢀ

"SET PT" (setpoint)

Light

Lights when the set

point is shown in the

displayꢀ

OVERTEMP Light

"ACTUAL TEMP"

Light

Lights when the

Actual Tempera-

ture is shown in

the displayꢀ

Lights when the oven

temperature is greater

than 343°Cꢀ Refer to

Quick

Reference:

Troubleshooting in

this sectionꢀ

Service Key

For use by ser-

vice personnel

onlyꢀ

Temperature Key

Press this key once to

view the Actual Tem-

perature in the Dis-

playꢀ

Set Point Key

Unlock Key

Press this key together

with the Unlock Key to

allow the Set Point to

be changedꢀ

Changes can only be

made for 60 secondsꢀ

Press this key together

with the Set Point Key

to allow the Set Point

Up Arrow and Down Arrow

Keys

changedꢀ

Changes can only be

made for 60 secondsꢀ

Press these keys to adjust

the Set Point up or downꢀ If

the Set Point will not

change, refer to Set Point

Key and Unlock Key in this

sectionꢀ

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SECTION3-OPERATION

IVꢀ QUICK REFERENCE: TROUBLESHOOTING

SYMPTOM

PROBLEM

SOLUTION

The oven temperature ex-

ceeded 343°C, and the

burner or heating elements

were automatically shut

downꢀ

•

Follow the procedures under Daily Shutdown Procedures in

this section to shut down the ovenꢀ Contact your Middleby

MarshallAuthorizedServiceAgenttodetermineandcorrectthe

cause of the condition to prevent damage to the ovenꢀ

light is lit, food product is

undercooked

Oven will not

turn on at all

Electrical power may not be

reaching the oven, or the

controls may be set incor-

rectlyꢀ

•

Check that the circuit breaker/fused disconnect is turned onꢀ

Check that the "BLOWER" ( ) Switch is in the “ON” ("I")

positionꢀ The burner cannot engage until the blowers are in

operationꢀ

The gas burner did not light

within 90 seconds of turn-

ing the "HEAT" ( ) Switch

to the “ON” ("I") positionꢀ

"RESET" ( ) switch is

illuminated, oven will not

heat

•

Press the "RESET" ( ) switch (repeatedly if necessary) to

attempt to light the burnerꢀ

If the burner does not light within 15 minutes, the oven will enter

a safety lockout mode that disables the "RESET" ( ) switchꢀ

If this occurs, turn the "HEAT" ( ), "BLOWER" ( ), and

(gas ovens only)

"CONVEYOR" (

)switches to the "OFF" ("O") positionꢀ Wait

forATLEASTFIVEMINUTESbeforerestartingtheovenꢀ Then,

repeat the Daily Startup procedureꢀ

The oven did not reach

93°C within 15 minutes of

startup, and the oven has

stopped heatingꢀ

•

Turn the "HEAT" ( ), "BLOWER" ( ), and "CONVEYOR"

(

)switches to the "OFF" ("O") positionꢀ

•

Wait for AT LEAST FIVE MINUTES before restarting the ovenꢀ

Repeat the Daily Startup procedureꢀ

appears in display,

oven is not heating

Controls may be set incor-

rectlyꢀ

•

Check that the Set Point is correctly setꢀ

Oven will not heat

Checkthatboththe"BLOWER"( ) and"HEAT"( )Switches

are in the “ON” ("I") positionꢀ

•

If the oven still will not heat,turn the "HEAT" ( ), "BLOWER"

(

), and "CONVEYOR" (

)switches to the "OFF" ("O")

positionꢀ

•

Wait for AT LEAST FIVE MINUTES before restarting the ovenꢀ

Repeat the Daily Startup procedureꢀ Check that the Set Point

is above 93°Cꢀ

Oven is operating, but

little or no air is blowing

from air fingers

Air fingers may have been

reassembled incorrectly

after cleaningꢀ

•

Turn the oven off, and allow it to coolꢀ Disconnect electrical

power to the ovenꢀ

Refer to Section 4, Maintenance, for instructions on reassem-

bling the air fingersꢀ

Conveyor moves with a

jerky motion, or will not

move at all

Conveyor may be jammed

on an object in the oven, or

conveyor belt or drive chain

tension may be incorrectꢀ

•

Turn the oven off, and allow it to coolꢀ Disconnect electrical

power to the ovenꢀ

•

Check if the conveyor is blocked by an object inside the ovenꢀ

Refer to Section 4, Maintenance, for instructions on checking

the conveyor and drive chain tensionꢀ

Food products are

overcooked or

undercookedꢀ

Controls may be set incor-

rectlyꢀ

•

Check that the set temperature and bake time settings are

correctꢀ

IFTHESESTEPSFAILTORESOLVETHEPROBLEM,CONTACTYOURLOCALMIDDLEBYMARSHALL

AUTHORIZED SERVICE AGENTꢀ A SERVICE AGENCY DIRECTORY IS SUPPLIED WITH YOUR OVENꢀ

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SECTION4-MAINTENANCE

WARNING

Before ANY cleaning or servicing of the oven, perform the following procedure:

1ꢀ Switch off the oven and allow it to coolꢀ Do NOT service the oven while it is warmꢀ

2ꢀ Turn off the electric supply circuit breaker(s) and disconnect the electric supply to the ovenꢀ

3ꢀ If it is necessary to move a gas oven for cleaning or servicing, disconnect the gas supply connection before moving the ovenꢀ

When all cleaning and servicing is complete:

4ꢀ For gas ovens, turn on the full-flow gas safety valveꢀ Test

the gas line connections for leaks using approved leak

test substances or thick soap sudsꢀ

5ꢀ Turn on the electric supply circuit breaker(s)ꢀ

6ꢀ Perform the normal startup procedureꢀ

1ꢀ If the oven was moved for servicing, return the oven to its

original locationꢀ Adjust the legs so that they are seated

properly on the floorꢀ

2ꢀ For gas ovens, reconnect the gas supplyꢀ

3ꢀ Reconnect the electrical supplyꢀ

WARNING

Possibility of injury from moving parts and electrical shock exists in this ovenꢀ Switch off and lockout/tagout the electric supply

BEFORE beginning to disassemble, clean, or service any ovenꢀ Never disassemble or clean an oven with the BLOWER (

switch or any other circuit of the oven switched onꢀ

)

CAUTION

NEVER use a water hose, water jet, or pressurized steam-cleaning equipment when cleaning this ovenꢀ DO NOT use

excessive amounts of water, to avoid saturating the oven insulationꢀ DO NOT use a caustic oven cleaner, which can damage

the aluminized bake chamber surfacesꢀ

NOTE

ANY replacement parts that require access to the interior of the oven may ONLY be replaced by a Middleby Marshall Authorized

Service Agentꢀ It is also strongly recommended that the 3-Month Maintenance and 6-Month Maintenance procedures in this

section be performed ONLY by a Middleby Marshall Authorized Service Agentꢀ

Figure 4-1 - Crumb trays

Iꢀ MAINTENANCE - DAILY

Aꢀ Check that the oven is cool and the power is disconnected,

Upper oven

(drive end)

as described in the warning at the beginning of this Sectionꢀ

Bꢀ Clean the outside of the oven with a soft cloth and mild

detergentꢀ

Upper oven

(idler end)

Cꢀ Clean ALL of the cooling fan grills and vent openings with a

stiff nylon brushꢀ

Dꢀ Check that ALL cooling fans are operating properlyꢀ

CAUTION

If a cooling fan is not operating correctly, it must be replaced

IMMEDIATELYꢀ Operating the oven without adequate

cooling can seriously damage the oven's internal compo-

nentsꢀ

Eꢀ Clean the conveyor belts with a stiff nylon brushꢀ This is

more easily accomplished by allowing the conveyor to run

while you stand at the exit end of the conveyorꢀ Then, brush

the crumbs off the conveyor as it movesꢀ

Fꢀ Remove and clean the crumb traysꢀ Be sure to replace the

trays in the same positions from which they were removed,

Lower oven

because they are NOT identicalꢀ Refer to Figure 4-1ꢀ

Gꢀ Clean the window in placeꢀ

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SECTION4-MAINTENANCE

Figure 4-2 - Removing the Conveyor Drive Sprocket

IIꢀ MAINTENANCE - MONTHLY

Aꢀ Check that the oven is cool and the power is disconnected,

as described in the warning at the beginning of this Sectionꢀ

Loosen conveyor collar

set screw, then pull

sprocket straight out

Bꢀ Remove the crumb trays, drive motor shroud, and conveyor

extension covers from the ovenꢀ

Cꢀ Liftthedriveendoftheconveyorslightly, andpushitforward

into the ovenꢀ This removes the tension from the drive

chainꢀ Then, remove the drive chain from the conveyor

sprocketꢀ

NOTE

Figure 4-3 - Removing the Conveyor

Split belt conveyors can only be removed from the end of

the oven with the drive motorꢀ

Single-belt conveyor assemblies may be removed from

either end of the ovenꢀ If it is to be removed from the end

of the oven without the drive motor, the drive sprocket

assembly must be removedꢀ

To remove the drive sprocket (if necessary), loosen the set

screw on the conveyor collar as shown in Figure 4-2ꢀ Then,

pull the sprocket assembly straight outꢀ

Dꢀ Slide the conveyor out of the oven, folding it as it is removedꢀ

See Figure 4-3ꢀ

Eꢀ Remove the end plugs from the ovenꢀ

Fꢀ Slide the air fingers and blank plates out of the oven, as

shown in Figure 4-4ꢀ AS EACH FINGER OR PLATE IS

REMOVED, WRITE A "LOCATION CODE" ON IT WITH A

MARKER to make sure that it can be reinstalled correctlyꢀ

Example of markings:

Figure 4-4 - Removing Air Fingers and Plates

(Top Row)

T1 T2 T3 T4 T5 T6

B1 B2 B3 B4 B5 B6

(Bottom Row)

Gꢀ Disassemble the air fingers as shown in Figure 4-4ꢀ AS

EACH FINGER IS DISASSEMBLED, WRITE THE "LOCA-

TION CODE" FOR THE FINGER ON ALL THREE OF ITS

PIECESꢀ This will help you in correctly reassembling the

air fingersꢀ

CAUTION

Incorrect reassembly of the air fingers will change the

baking properties of the ovenꢀ

Hꢀ Clean the air finger components and the interior of the

baking chamber using a vacuum cleaner and a damp clothꢀ

Refer to the boxed warnings at the beginning of this Section

for cleaning precautionsꢀ

Manifold

Inner plate

Outer plate

Iꢀ Reassemble the air fingersꢀ Then, replace them in the

oven, using the "location code" as a guideꢀ

Jꢀ Replace the end plugs on the ovenꢀ

Figure 4-5 - Checking the conveyor tension

Kꢀ Reassembletheconveyorintotheovenꢀ Ifthedrivesprocket

was removed when installing the conveyor, replace it at this

timeꢀ

75-100mm

vertical

deflection

Lꢀ Reattach the drive chainꢀ

Mꢀ Check the tension of the conveyor belt as shown in Figure

4-5ꢀ The belt should lift between 75-100mmꢀ DO NOT

OVERTIGHTEN THE CONVEYOR BELTꢀ If necessary, the

belt tension can be adjusted by turning the conveyor adjust-

ment screws, located at the idler (right) end of the conveyorꢀ

Conveyor

tension

adjustment

screws (idler

end only)

Nꢀ Replacetheconveyorextensioncovers,drivemotorshroud,

and crumb traysꢀ

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SECTION4-MAINTENANCE

Figure 4-6 - Split Belt Idler Shaft

IIIꢀ MAINTENANCE - EVERY 3 MONTHS

Aꢀ Check that the oven is cool and the power is disconnected,

as described in the warning at the beginning of this Sectionꢀ

Conveyor

adjustment

screw

Bꢀ Vacuum both of the blower motors, and their surrounding

compartments, using a shop vacuumꢀ

Cꢀ Tighten all electrical control terminal screwsꢀ

Dꢀ Split Belt Disassembly and Cleaning

For split belt ovens ONLY, disassemble, clean and lubricate the

conveyor shaft components as described belowꢀ

1ꢀ Remove the motor shroud, conveyor extensions, and con-

veyor as described in Part II, Monthly Maintenanceꢀ

Figure 4-7 - Split Belt Drive Shaft

2ꢀ Remove the master links from each conveyor beltꢀ Then,

roll the belts up along the length of the conveyor to remove

them from the frameꢀ

3ꢀ Remove the two conveyor adjustment screws from the idler

end of the conveyor frame, as shown in Figure 4-6ꢀ

Locking collar

4ꢀ Remove the idler shaft assembly from the conveyorꢀ

5ꢀ Pull apart the two sections of the idler shaftꢀ Clean the

shafts thoroughly using a ragꢀ Then, lubricate both the

extended shaft and the interior of the hollow shaft using an

FDA-approved light food-grade lubricantꢀ

CAUTION

DO NOT lubricate the shafts using WD40 or a similar

productꢀ This can cause the shafts to wear rapidlyꢀ

6ꢀ Before reassembling the shafts into the conveyor frame,

check that they are oriented properlyꢀ Remember that

unequal-width split belt ovens should ALWAYS have the

narrower belt at the front of the ovenꢀ

Figure 4-8 - Washer and Spacer

7ꢀ Reassemble the idler shaft into the conveyorꢀ Make sure

that the bronze washer is in place between the two sections

of the shaftꢀ See Figure 4-8ꢀ

8ꢀ Replace the conveyor adjustment screws as shown in

Figure 4-6ꢀ To allow the conveyor belt to be reinstalled later,

do not tighten the screws at this timeꢀ

Bronze washer on

BOTH idler and

drive shafts

9ꢀ Loosen the set screw on both of the conveyor drive sprock-

etsꢀ Then, remove the sprockets from the shaftꢀ

Nylon spacer

on drive shaft

ONLY

10ꢀ Loosen the locking collar set screw, as shown in Figure 4-7ꢀ

11ꢀ Pushthedriveshafttotheright,thenliftitfreeoftheconveyor

frameꢀ Then, disassemble and lubricate the two sections

of the drive shaft as described in Step 5ꢀ

12ꢀ Before reassembling the shafts into the conveyor frame,

check that they are oriented properlyꢀ Remember that

unequal-width split belt ovens should ALWAYS have the

narrower belt at the front of the ovenꢀ

13ꢀ Reassemble the drive shaft into the conveyorꢀ Check that

the nylon spacer is in place, as shown in Figure 4-8ꢀ Also,

check that the bronze washer is in place between the two

sections of the shaftꢀ

Figure 4-9 - Conveyor and Master Link Orientation

Direction

of travel

CORRECT

14ꢀ Replace the drive sprocketsꢀ Reassemble the belts and

master links onto the conveyorꢀ Check that the smooth side

of the conveyor belt faces UP, and that the belt and master

links are oriented as shown in Figure 4-9ꢀ

master link

position

15ꢀ Reassemble the conveyor, motor shroud and conveyor

extensions onto the ovenꢀ

Incorrect

master link

position

16ꢀ CheckthetensionoftheconveyorbeltasshowninFigure4-5ꢀ The

belt should lift between 75-100mmꢀ If necessary, adjust the belt

tension by turning the conveyor adjustment screwsꢀ

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SECTION4-MAINTENANCE

IVꢀ MAINTENANCE - EVERY 6 MONTHS

Vꢀ KEY SPARE PARTS KIT - Available sepa-

ratelyꢀ See Figure 4-10ꢀ

Aꢀ Check that the oven is cool and the power is disconnected,

as described in the warning at the beginning of this Sectionꢀ

Item

Part Noꢀ

36939

Description

Kit, Digital Temperature Controller

Motor, Conveyor Drive

Brushes, Drive Motor

Assembly, Pickup, Conveyor Drive

Kit, Conveyor Speed Controller

Kit, Thermocouple

Bꢀ Check for excessive wear on the conveyor drive motor

brushesꢀ The brushes should be replaced if they have worn

to less than 1/4" (6ꢀ4mm) in lengthꢀ Be sure to replace the

brushes in exactly the same positionꢀ

27384-0008

22450-0052

27170-0263

37337

Cꢀ For gas ovens, clean and inspect the burner nozzle and

electrode assemblyꢀ

33984

27392-0002

35625

Fan, Cooling

Dꢀ Check (and clean, if necessary) the oven venting systemꢀ

Kit, Air Switch

Eꢀ Check the conveyor drive shaft bushings and spacersꢀ

Replace the components if they are wornꢀ

27381-0023

Motor, Blower, PS360U and PS360L Gas and

Electric Ovens, 1/3 HP

31432

Motor, Blower, PS360WB-U and PS360WB-L

Gas Ovens, 1 HP

GAS OVENS ONLY:

27170-0287

35825

Assembly, Burner Blower and Motor

Kit, Ignition Module

12a

12b

37770

Kit, High Flame Solenoid Valve, 220V

37851

Kit, High Flame Solenoid Valve, 120V (for

ovens with external transformers)

ELECTRIC OVENS ONLY:

27374-0003

33983

Heating Element, 380-400V / 1)35-1)5 kW

Module, High Limit Control, 240V

Relay, Solid State

31463

Figꢀ 4-10 - Key Spare Parts Kit

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CIRCUIT

BREAKERS

Blue

Brown

TERMINAL

BLOCK

SAFETY

SWITCH

CONVEYOR SPEED CONTROLLER

FOR USE IN SPLIT BELT

APPLICATIONS ONLY

PICKUP

RFI FILTER

TRANSFORMER

240-480V PRIꢀ

120V SECꢀ

CONVEYOR

Black

Red

White

Black

DRIVE MOTOR

CONVEYOR SPEED CONTROLLER

PICKUP

CIRCUIT

BREAKER

CIRCUIT

BREAKERS

CIRCUIT

BREAKERS

CIRCUIT

BREAKER

BLOCKS 20A

CONVEYOR

Black

Red

DRIVE MOTOR

Red

White

Black

CONTACTOR

SOLID

White

Pink

CONVEYOR SWITCH

STATE

Blue

RELAYS

BLOWER SWITCH

COOLING FAN

Brown

CIRCUIT

BREAKER

BLOWER

MOTOR

COOLING FAN

COIL

BLOWER

MOTOR

HEAT

SWITCH

COOLDOWN RELAY

Brown

CENTRIFUGAL SWITCHES

Brown

COIL

PRESSURESWITCH

RESET SWITCH

HIGH LIMIT

CONTROL MODULE

Brown

HIGH LIMIT CONTROL MODULE

Brown

TEMPERATURE

CONTROLLER

HEATING

ELEMENTS

SOLID

STATE

RELAYS

ENGLISH

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2 5 s i d e

p a g e

D A N S K

E N G L I S H

CIRCUIT BREAKER (IN INSTALLATION LOCATION)

CHECK FOR PROPER POLARITYꢀ

FOR USE IN SPLIT BELT

APPLICATIONS ONLY

CONVEYOR SPEED CONTROLLER

INSTALLATION LOCATION

PICKUP

TERMINAL

BLOCK

CONVEYOR

DRIVE MOTOR

TRANSFORMER

220-240V PRIꢀ

110-120V SECꢀ

Black

Red

White

Black

RFI FILTER

CIRCUIT

SAFETY

BREAKER

SWITCH

White

120V NEUTRAL

Pink

Blue

220V NEUTRAL

Black

CONVEYOR SPEED CONTROLLER

PICKUP

CIRCUIT

BREAKERS

CIRCUIT

BREAKER

CIRCUIT

BREAKER

CONVEYOR

CONTACTOR

DRIVE MOTOR

Black

Red

White

Black

CONVEYOR SWITCH

Pink

White

BLOWER

MOTOR

BLOWER

MOTOR

BLOWER

SWITCH

Black

Orange

COOLING FAN

Orange

Brown

Black

CENTRIFUGAL

SWITCHES

COOLING FAN

COIL

HEAT

SWITCH

COOLDOWN

RELAY

Orange

PRESSURESWITCH

Brown

Red

PRESSURESWITCH

HIGH LIMIT SWITCH

Blue

Orange

Blue

220V NEUTRAL

HIGH LIMIT

CONTROL MODULE

TEMPERATURE

CONTROLLER

Purple

Yellow

Red

IGNITOR

SOLENOID

VALVE

Red

White

Red

HIGH LIMIT

CONTROL

MODULE

RESET

LAMP

SWITCH

White

Black

IGNITION MODULE

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