American Standard S9X1 Installer's Manual page 57

Upflow/horizontal and dedicated downflow gas-fired, direct/non-direct vent, single stage / two stage condensing furnaces with high efficiency motor
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Table 10. Return Duct Connections (continued)
Downflow Furnace with Top Return
1.
Remove the top plate.
2.
Attach the ducting to the top of the furnace.
3.
Install remote filter.
4.
Seal per local codes and requirements.
Downflow Furnace with Top Return and Plenum
1.
Remove the top plate.
2.
Attach the plenum ducting to the top of the furnace.
3.
Install remote filter.
4.
Seal per local codes and requirements.
18-CE12D1-1D-EN
D D u u c c t t C C o o n n n n e e c c t t i i o o n n s s
57

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