Page 8 of 60 IM 817-4Figure 10 -165⁄8" (422mm) Deep Unit with Open Pipe Tunnel & HighLouver Application with Chased WallLouverFloor LinePipingLouverNot LessThan 3" (76mm)Not MoreThan 21" (533mm)Sealed CementMortar;Pitch AwayFrom UnitProvide DrainagePipingFloor LineFigure 9 - The 165/8” (422mm) Deep Unit with Open Pipe Tunnel andStandard Louver LocationLouver Installation With Typical Unit ConfigurationsUnit Configuration Type AL1"(25mm)Important: Gasket sealingsurface is required.Important: Gasket sealingsurface is required.Lintel(By Others)Figure 11 - Above Floor Level Outdoor Air Intake Using ArrangementAV or AL With Accessory Closed Pipe TunnelPipingFloor LineLintel (By Others)Intake LouverNot Less Than 3"Not MoreThan 28"Insulated ClosurePlate AccessoryProvideDrainageImportant: Gasket sealingsurface is required.Figure 12 - Floor Level Outdoor Air Intake With Window Below UnitTop Using Arrangement AL And 9˝ “Finished” (Painted) Accessory(Uninsulated) Closed Pipe TunnelUnit Configuration Type ALLintel (By Others)Intake LouverImportant: Gasket sealingsurface is required.Sash PipingPainted Insulated Closure Plate AccessoryFloor LineAccumulated moisture can cause property damage if not properlydrained. Installing contractor must provide such drainage.Sealed CementMortar;Pitch AwayFrom UnitLintel(By Others)1"(25mm)Sealed CementMortar;Pitch AwayFrom UnitSealed CementMortar;Pitch AwayFrom Unit1"(25mm)1"(25mm)CAUTION