INSTALLATION INSTRUCTIONS
Gas Furnace: (F/G)MAC
440 01 4201 01
35
Specifications subject to change without notice.
Figure 43
Downflow Left Vent
Attach vent pipe adapter with gasket to furnace casing.
Align notches in rubber coupling over standoffs on adapter. Slide clamps over the coupling.
Slide vent pipe through adapter and coupling into vent elbow.
Insert vent pipe into vent elbow.
Torque all clamps 15 lb.-in.
Attach combustion air pipe adapter with gasket to furnace.
Attach combustion air pipe to adapter with silicone. Pilot drill a 1/8-in.
hole in adapter and secure with a #7 x 1/2-in sheet metal screw.
1
2
3
4
5
6
7
1
2
3
4
5
6
7
5
Rotate vent elbow to
required position.
A11311
Representative drawing only, some models may vary in appearance.
Figure 44
Downflow Right Vent
Attach vent pipe adapter with gasket to furnace casing.
Align notches in rubber coupling over standoffs on adapter. Slide clamps over the coupling.
Slide vent pipe through adapter and coupling into vent elbow.
Insert vent pipe into vent elbow.
Torque all clamps 15 lb.-in.
Attach combustion air pipe adapter with gasket to furnace.
Attach combustion air pipe to adapter with silicone. Pilot drill a 1/8-in.
hole in adapter and secure with a #7 x 1/2-in sheet metal screw.
1
2
3
4
5
6
7
1
2
3
4
5
6
7
5
Rotate vent elbow to
required position.
Any other unused
knockout may be used
for combustion air
connection.
A11312
Representative drawing only, some models may vary in appearance.