S9V2-SVX001-1B-EN
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Return Duct Connections
Return Ducting General Guidelines
• Back returns are not allowed on any S-Series Furnaces
• Side returns are not allowed on downflow or horizontal S-Series Furnaces
• Mounting flanges must be located on ducting
• Shoot screws through the mount flanges into the furnace cabinet
• Always seal per local codes and requirements
• Furnace, coil, and ducting must be supported separately
• An external overflow drain pan must be installed in all applications over a finished ceiling to prevent property damage
Upflow Furnace with Bottom Return in Closet with Remote
Filter
Refer to Step 1, Step 2, Step3 , Step 4
Upflow Furnace with Bottom Return in Closet with Filter Box
Refer to Step 1, Step 5, Step 6, Step 4
Upflow Furnace with Bottom Return Mounted on a Ducted
Pedestal
Refer to Step 1, Step 7, Step 8, Step 4
Upflow Furnace with Bottom Return Mounted on a Ducted
Pedestal with Filter Box
Refer to Step 1, Step 9, Step 4
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