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Figure 4 - Curb
Side Return Duct/Access Panel Install, refer to
• Install gasket material around the upper and side edges.
• Install ductwork using self-tapping screws.
• Use caulk/sealant around the upper and side edges.
• Do not use caulk/sealant on the lower edge. Use only self-tapping screws to mount ductwork.
Side Discharge Duct Install, refer to
Detail B.
• Mount ductwork to the lip of the side discharge opening.
• Use self-tapping screws to secure ductwork.
• Verify the ductwork is clear for opening the top access panel door.
Figure 5 - Side Discharge, Side Return
Curb Attachment
Point
Gasket
Curb
1. Discharge Outlet
2. Upper Edge - Use gasket/sealant for side
return duct or access panel.
3. Side Edges - Use gasket/sealant for side
return duct or access panel.
4. Lower Edge - DO NOT USE gasket/sealant.
4
1
2
2
3
3
Detail B
Detail A