Middleby Marshall Oven owner manual III. Ventilation System, Requirements, Recommendations

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SECTION 2

INSTALLATION

III. VENTILATION SYSTEM

IMPORTANT

Where international, national, or local codes require the installation of fire suppression equipment or other supplementary equipment, DO NOT mount the equipment directly to the oven.

MOUNTING SUCH EQUIPMENT ON THE OVEN MAY:

VOID AGENCY CERTIFICATIONS

RESTRICT SERVICE ACCESS

LEAD TO INCREASED SERVICE EXPENSES FOR THE OWNER

REQUIREMENTS

A mechanically driven ventilation system is required for the oven.

PROPER VENTILATION OF THE OVEN IS THE

RESPONSIBILITY OF THE OWNER.

RECOMMENDATIONS

NOTE THAT THE HOOD DIMENSIONS SHOWN IN FIG-

URE 2-1 (PREVIOUS PAGE) ARE RECOMMENDATIONS

ONLY. INTERNATIONAL, NATIONAL, AND LOCAL

CODES WILL VARY, AND MUST BE FOLLOWED WHEN

INSTALLING THE VENTILATION SYSTEM. ANY AP-

PLICABLE INTERNATIONAL, NATIONAL, AND LOCAL

CODES SUPERSEDE THE RECOMMENDATIONS

SHOWN IN THIS MANUAL.

The rate of air flow exhausted through the ventilation system may vary depending on the oven configuration and hood design. Consult the hood manufacturer or ventilation engineer for these specifications.

To avoid a negative pressure condition in the kitchen area, return air must be brought back to replenish the air that was exhausted. A negative pressure in the kitchen can cause heat- related problems to the oven components as if there were no ventilation at all. The best method of supplying return air is through the heating, ventilation and air conditioning (HVAC) system. Through the HVAC system, the air can be temperature- controlled for summer and winter. Return air can also be brought in directly from outside the building, but detrimental affects can result from extreme seasonal hot and cold temperatures from the outdoors.

NOTE: Return air from the mechanically driven system must not blow at opening of bake chamber. Poor oven baking performance will result.

OTHER VENTILATION CONCERNS

Special locations, conditions, or problems may require the services of a ventilation engineer or specialist.

Inadequate ventilation can inhibit oven performance.

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 specialist.

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Contents UNLOADING/UNPACKING Section InstallationVentilation Hood Dimensions Recommendations only II. INSTALLATION, PREPARATION, and SupplyOther Ventilation Concerns III. Ventilation SystemRequirements RecommendationsInstallation KIT Dimensions and Data PS360L Tandem Dimensions and Data PS360WB Double Tandem Dimensions and Data PS360U Tri Tandem Dimensions and Data PS360WB-U Tri Tandem Dimensions and Data PS360U Quad Tandem Dimensions and Data PS360WB-U Quad Tandem IV. Thermocouple Installation Thermocouple Installation LocationsPlacing the Thermocouple Leads Thermocouple Lead Connections Exploded View Upper Oven Stand AssemblyOven Positioning and Alignment Cooling Fan RemovalJoining the Oven Bodies Bolts and Spacers Aligning the Ovens for AssemblyTrim Strip Positioning Checking Track Rail Alignment22a Support Brackets Lower Oven Transition Frame PlacementReplacing Transition Frame Installing the Transition Floor Panel25a Installing the Conveyor Frame and BeltConveyor Link Orientation Inside Master LinksOutside Master Links Conveyor Motor and Drive Chain Assembly Transition AssemblyGAS Supply Electrical Supply Do not USE Conduit For GroundOven Rough-In VI. Electrical Connection Typical Oven Data Plate Models PS360/PS360WB Flexible Hose Connector Installation During Pressure Testing Note ONE FollowingVII. GAS Supply for GAS Heated Ovens VIII. Preparation for Various Gases For USE with Natural GASFor USE with Liquid LP GAS GAS Type and Pressure Label Burner/Piping AssemblyIX. Changing Orifices Volumetric MethodXI. Variations of Rated Supply Pressures To Check GAS Supply PressureOrifice Manifold Pressure Method Special Notices