18-CE15D1-1C-EN
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Table 4. Return Duct Connections (continued)
Upflow Furnace with Side Return
Important:
Make sure the thermostat wiring hole is sealed on the
cabinet side with the side return.
Important:
Make sure not to cut the cabinet in the “No Cut” area.
1.
Using guides, remove the cutout for the side return.
2.
Create ducting and set the furnace in place. Use screws to attach
ducting to the furnace cabinet.
Note:
If using a filter box, use a transition, if possible, to attach the
filter box to the furnace cabinet.
3.
Seal bottom panel per local codes and requirements.
4.
Seal all other panels per local codes and requirements.
Use four corner guides
to create cutout
No Cut Area
Upflow Furnace with Two Side Returns
Important:
One of the sides must have a transition to allow the
thermostat wiring to exit the cabinet.
Important:
If a transition is not a viable option, a hole will need to be
drilled in the side of the cabinet for the thermostat wiring
to exit.
Important:
Make sure not to cut the cabinet in the “No Cut” area.
Note:
If using one transition, the thermostat wiring will exit on the
transition side.
1.
Using guides, remove the two cutouts for the side returns.
2.
Create ducting and set the furnace in place. Use screws to attach
ducting to the furnace cabinet.
Note:
If using a filter boxes, use transitions, if possible, to attach the
filter boxes to the furnace cabinet.
3.
Seal bottom panel per local codes and requirements.
4.
Seal all other panels per local codes and requirements.
Use four corner guides
to create cutout
No Cut Area
