45
440 01 2020 01
1
²
max.
Maintain 12
²
clearance above high-
est anticipated snow level or grade
whichever is greater.
Figure 49
Concentric Vent and Combustion--Air
Side Termination
Combustion
Air
Vent
25--22--02
12
²
min.
Roof Overhang
Combustion
Air
Vent
Combustion
Air
Concentric Vent Sidewall
Attachment
Vent
45
°
Elbow
(Field Supplied)
25--22--02
Strap
(Field Supplied)
Flush to
1
²
max.
Note:
Securing strap must be field installed to prevent movement of ter-
mination kit in side wall.
Figure 50
8. Install the rain cap and the small diameter pipe assembly in
the Y concentric fitting and the large pipe assembly. Ensure
that the small diameter pipe is bottomed out and securely
cemented in the Y concentric fitting.
9. Cement the furnace combustion air and vent pipes to the
concentric vent termination assembly. See
Figure 46
or
Figure 50
for proper pipe attachment.
10. Operate the furnace through one heat cycle to ensure com-
bustion air and vent pipes are properly connected to the con-
centric termination connections.
Summary of Contents for 9MPT050F12A
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