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F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n
Table 19. Return Duct Connections
Return Ducting General Guidelines
•
Back returns are not allowed on any S-Series furnaces
•
Side returns are not allowed on downflow 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
Refer to
Step
1.,
Upflow Furnace with Bottom Return Mounted on a Ducted
Refer to
Step
1.,
52
Filter
Step
2.,
Step
3.,
Step 4.
Pedestal
Step
7.,
Step
8.,
Step 4.
Upflow Furnace with Bottom Return in Closet with Filter Box
Refer to
Step
1.,
Step
Upflow Furnace with Bottom Return Mounted on a Ducted
Pedestal with Filter Box
Refer to
Step
5.,
Step
6.,
Step 4.
1.,
Step
9.,
Step 4.
S9V2-VS-SVX001-1C-EN
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