Middleby Marshall 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  
©2001MiddlebyMarshall, Incꢀ  
is a registered trademark of Middleby Marshall, Incꢀ All rights reservedꢀ  
Middleby Cooking Systems Group • 1400 Toastmaster Drive • Elgin, IL 60120 • USA • (847)741-3300 • FAX (847)741-4406  
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TABLEOFCONTENTS  
page  
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 Ovensꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ11  
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 Panelꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4  
Jꢀ Eyebrows ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4  
Kꢀ Conveyor End Stopꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4  
Lꢀ Gas Burner or Heating Elements ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4  
Mꢀ Blowersꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4  
Nꢀ Air Fingers ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4  
IIIꢀ OVENSPECIFICATIONS ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4  
Aꢀ Dimensions ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4  
Bꢀ General Specificationsꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 4  
Cꢀ Electrical Specifications ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 5  
Dꢀ Gas Orifice and Pressure Specificationsꢀꢀꢀꢀꢀꢀꢀ 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 CONTROL17  
IVꢀ QUICK REFERENCE: TROUBLESHOOTING ꢀꢀꢀꢀꢀꢀꢀ 18  
SECTION2-INSTALLATIONꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 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-DAILYꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ19  
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, 1Phꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ23  
IIꢀ WIRING DIAGRAM, PS360-U/-L OR PS360WB-U/-L  
GAS OVEN, 220-230V, 50Hz, 1 Phꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ24  
3
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  
D
F
installation and operationꢀ  
C
E
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  
B
Hꢀ Control Compartment Access Panel: Allows access to  
the control componentsꢀ No user-servicable parts are  
located in the control compartmentꢀ  
A
Iꢀ  
Control Panel: Location of the operating controls for the  
ovenꢀ  
H,I  
G
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  
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  
< - - - - - - - - - - - - - - - -  
4
15 minutes  
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  
50 Hz  
Poles  
2 Pole  
2 Pole  
Wires  
220-230V  
380-400V  
120V (transformer)  
120V (transformer)  
8A  
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,  
GB  
AT,CH,  
Orifice  
Main  
Orifice  
dia)  
Pilot  
Orifice  
dia)  
Bypass  
Orifice  
dia)  
DK,FI, (manifold) Rated  
DE  
NL  
BE,FR  
II2E+3+  
SE  
II2H3B/P  
pressure Heat  
(mbar)  
Supply  
Volume  
Gas  
Flow  
Gas Type  
II2H3+ II2ELL3B/P II2L3B/P  
Input  
PS360U, PS360L  
Natural, G20  
Natural, G25  
Natural, G20, G25  
Liquid, G30  
Liquid, G30, G31  
5ꢀ50mm  
5ꢀ50mm  
4ꢀ50mm  
2ꢀ70mm  
3ꢀ10mm  
0ꢀ635mm  
0ꢀ635mm  
0ꢀ635mm  
0ꢀ381mm  
0ꢀ381mm  
1ꢀ65mm  
1ꢀ65mm  
1ꢀ50mm  
0ꢀ85mm  
0ꢀ95mm  
20  
--  
20  
29-37  
--  
20  
20  
20  
--  
--  
25  
25  
20-25  
--  
20-25  
20  
--  
20  
50  
50  
6ꢀ8  
10ꢀ5  
6ꢀ8-10ꢀ5  
40kw  
40kw  
4ꢀ2m3h  
4ꢀ2m3h  
70ꢀ0  
81ꢀ7  
l
l
/min  
/min  
40kw 4ꢀ2-4ꢀ9m3h 70ꢀ0-81ꢀ7  
l
/min  
28-30 29-37  
30  
*
*
40kw  
40kw  
3ꢀ1kg/h  
3ꢀ1kg/h  
--  
--  
50  
--  
PS360WB-U, PS360WB-L  
Natural, G20  
Natural, G25  
Natural, G20, G25  
Liquid, G30  
Liquid, G30, G31  
6ꢀ30mm  
0ꢀ635mm  
0ꢀ635mm  
0ꢀ635mm  
0ꢀ381mm  
0ꢀ381mm  
2ꢀ30mm  
2ꢀ30mm  
2ꢀ00mm  
1ꢀ40mm  
1ꢀ40mm  
20  
--  
20  
29-37  
--  
20  
20  
20  
--  
--  
25  
25  
20-25  
--  
20-25  
20  
--  
20  
50  
50  
6ꢀ8  
10ꢀ5  
6ꢀ8-10ꢀ5  
50kw  
50kw  
5ꢀ3m3h  
6ꢀ1m3h  
88ꢀ0  
102ꢀ4  
l
/min  
6ꢀ30mm  
5ꢀ40mm  
3ꢀ10mm  
3ꢀ50mm  
l
/min  
/min  
50kw 5ꢀ3-6ꢀ1m3h 88ꢀ0-102ꢀ4  
l
28-30 29-37  
30 --  
*
*
50kw  
50kw  
3ꢀ9kg/h  
3ꢀ9kg/h  
--  
--  
50  
* 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#  
5
SECTION2-INSTALLATION  
Iꢀ INSTALLATION KIT  
Figꢀ 2-1 - Installation Kit  
4
1
5
3
6
7
10  
8
9
11  
2
Aꢀ Installation kit components (one kit required per cavity)  
Item  
1
Description  
PartNumber  
LowerOvenw/oTop LowerOvenw/Top  
UpperOven  
Legs, adjustable  
22450-0028  
4
4
--  
2a  
Conveyor End Stop - PS360/360S  
Single Belt  
Split Belt  
35000-1103  
35509  
1
2
1
2
1
2
2b  
3
Conveyor End Stop - PS360WB (Single or Split Belt)  
Attachment Plate, upper oven  
Thermocouple  
36526  
1
--  
2
2
1
2
1
1
1
--  
2
2
1
2
1
1
1
2
35122-0049  
33812-1  
4
2
5
Screw, #10-32 x 3/8"  
21256-0008  
27276-0001  
21292-0001  
46486  
2
6
CableClamp  
1
7
Screw, #2PT 10-16 x 3/4" HWH  
Owner's Operating and Installation Manual  
Authorized Service Agency Listing  
14  
1
8
9
1002040  
1
Bꢀ Additional installation kit components for gas ovens  
Item  
5
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  
1
2
1
2
1
2
7
10  
1
1
1
11a  
11b  
11cFlue  
Flue vent, 14" (356mm)  
Flue vent, 29-1/2" (749mm)  
--  
--  
1
--  
1
30759  
--  
vent,  
50"  
(1270mm)  
30758  
1
--  
--  
6
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  
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  
458mm  
7
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  
8
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  
9
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  
10  
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  
11  
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  
l
/sec meter  
/sec meter  
l
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  
12  
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  
13  
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)ꢀ  
6
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 0ꢀ1m3 of 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  
14  
SECTION3-OPERATION  
Iꢀ LOCATION AND DESCRIPTION OF CONTROLS  
Figꢀ 3-1 - Control Panel  
E%  
Conveyor Speed  
("  
") controller(s)  
A%  
B%  
"HEAT"  
C%  
"CONVEYOR"  
(" ")  
switch  
F%  
D%  
"BLOWER"  
Digital Temperature  
"RESET"  
("  
")  
("  
")  
(" ") controller  
switch  
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  
15  
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  
or  
or  
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  
a
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-  
or  
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  
16  
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  
to  
be  
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  
17  
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  
18  
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  
19  
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  
20  
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  
21  
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  
1
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  
2
27384-0008  
22450-0052  
27170-0263  
37337  
3
4
5
Cꢀ For gas ovens, clean and inspect the burner nozzle and  
electrode assemblyꢀ  
6
33984  
7
27392-0002  
35625  
Fan, Cooling  
Dꢀ Check (and clean, if necessary) the oven venting systemꢀ  
8
Kit, Air Switch  
Eꢀ Check the conveyor drive shaft bushings and spacersꢀ  
Replace the components if they are wornꢀ  
9a  
27381-0023  
Motor, Blower, PS360U and PS360L Gas and  
Electric Ovens, 1/3 HP  
9b  
31432  
Motor, Blower, PS360WB-U and PS360WB-L  
Gas Ovens, 1 HP  
GAS OVENS ONLY:  
10  
11  
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:  
13  
14  
15  
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  
1
2
4
5
3
7
8
6
9
10  
11  
12  
15  
14  
13  
22  
CIRCUIT  
BREAKERS  
6A  
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  
Red  
White  
Black  
DRIVE MOTOR  
CONVEYOR SPEED CONTROLLER  
PICKUP  
CIRCUIT  
BREAKER  
2A  
CIRCUIT  
BREAKERS  
6A  
CIRCUIT  
BREAKERS  
6A  
CIRCUIT  
BREAKER  
BLOCKS 20A  
CONVEYOR  
Black  
Red  
DRIVE MOTOR  
Red  
White  
Black  
CONTACTOR  
CONTACTOR  
SOLID  
White  
Pink  
CONVEYOR SWITCH  
STATE  
Blue  
RELAYS  
BLOWER SWITCH  
COOLING FAN  
Brown  
CIRCUIT  
BREAKER  
6A  
BLOWER  
MOTOR  
COOLING FAN  
COIL  
BLOWER  
MOTOR  
HEAT  
SWITCH  
COOLDOWN RELAY  
Brown  
Brown  
Brown  
CENTRIFUGAL SWITCHES  
Brown  
Brown  
COIL  
PRESSURESWITCH  
RESET SWITCH  
HIGH LIMIT  
CONTROL MODULE  
Brown  
HIGH LIMIT CONTROL MODULE  
Brown  
TEMPERATURE  
CONTROLLER  
TC  
HEATING  
ELEMENTS  
SOLID  
STATE  
RELAYS  
ENGLISH  
2 5 s i d e  
1
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  
Red  
White  
Black  
RFI FILTER  
CIRCUIT  
SAFETY  
BREAKER  
SWITCH  
White  
120V NEUTRAL  
Pink  
6A  
Blue  
220V NEUTRAL  
Black  
CONVEYOR SPEED CONTROLLER  
PICKUP  
CIRCUIT  
BREAKERS  
8A  
CIRCUIT  
BREAKER  
2A  
CIRCUIT  
BREAKER  
6A  
CONVEYOR  
CONTACTOR  
DRIVE MOTOR  
Black  
Red  
Red  
White  
Black  
CONVEYOR SWITCH  
Pink  
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  
TC  
Red  
White  
White  
Red  
HIGH LIMIT  
CONTROL  
MODULE  
TC  
RESET  
RESET  
LAMP  
2A  
SWITCH  
White  
Black  
Black  
IGNITION MODULE  

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