Combustion Air And Vent Termination For Direct Vent (2- -Pipe) System; Vent Pipe Termination For Ventilated Combustion Air System - Carrier Infinity ICS 58MVC Installation Instructions Manual

Roof T e rmination (Preferred)
At least 36 in.
Vertical separation
between combustion
air and vent
8 3/4 in. for 3 in. kit
18 in. maximum
6 3/4 in. for 2 in. kit
Maintain 12 in. min.
clearance above
highest anticipated
snow level
Maximum of 24 in.
above roof
Note: "A" denotes 0 to < 2 in.
Between the first 2 vents
Third vent must be > 36 in. away
90°
Fig. 36 - - Combustion Air and Vent Termination for Direct Vent (2- -pipe) System
Roof Termination (Preferred)
Maintain 12 in.
minimum clearance
above highest anticipated
snow level maximum of
24 in. above roof.
Side wall termination
with 2 elbows (preferred)
Fig. 37 - - Vent Pipe Termination for Ventilated Combustion Air System
A
Abandoned masonry
used as raceway
(per code)
in.
12 min from
overhang or roof
(typ)
At least 36 in.
in.
12 separation
between bottom of
combustion air and
A
bottom of vent (typ)
in.
Maintain 12
min. clearance above
highest anticipated
snow level or grade
whichever is greater (typ)
Vent
Abandoned masonry
used as raceway
(per code)
between wall and end of vent pipe.
10 in. maximum pipe length
12 in. min. from
overhang or roof
90°
Maintain 12 in.
minimum clearance
above highest anticipated
snow level or grade
whichever is greater.
31
Concentric Vent and Combustion Air
Roof Termination (preferred)
A
At least
36 in. Maintain 12
min. clearance above
highest anticipated
snow level, maximum of
24 in. above roof
Concentric Vent
and Combustion - Air
Side T e rmination
A
Side wall termination
in.
of less than 12 above highest snow level
12 in. min. from
overhang or roof
6 in. minimum clearance
Maintain 12 in.
minimum clearance
above highest anticipated
snow level or grade
whichever is greater
Sidewall Termination
with Straight Pipe (preferred)
in.
in.
1 maximum (typ) from wall to inlet
in.
12 minimum from
overhang or roof
A
in.
Maintain 12
min. clearance above
highest anticipated
snow level or grade
whichever is greater
A05090
A05091