Install Instructions

20 103448-02 - 6/13
Table 4: Vent/Combustion Air System Options
IV. Venting A. General Guidelines (continued)
Approved Direct
Vent System
Boiler
Mounting
Vent
Material
Orientation Termination Description Figures
Component
Table
Part
Factory Standard
Two-Pipe,
CPVC/PVC
Vent and PVC
Air Intake
Floor Standing
or Wall Hung
Installations
CPVC/PVC
Horizontal
Standard
(thru sidewall)
The system includes separate
CPVC vent pipe and PVC air intake
pipe terminating thru sidewall with
individual penetrations for the vent
and air intake piping and separate
terminals (tees).
5 thru 10 5A
B.
Optional
Snorkel
(thru sidewall)
Same as above but separate snorkel
type terminals.
5, 6A, 6B,
7, 8, 10,
11
5B
Optional
Vertical
Vertical
(thru roof)
The system includes separate CPVC
vent pipe and PVC air intake pipe
terminating thru roof with individual
penetrations for the vent and air
intake piping and separate vertical
terminals.
4, 5A, 5B,
6, 9, 11
5C
Available Optional
Two-Pipe, Rigid
Polypropylene
Vent (or Flexible
Polypropylene Liner
for Vertical venting
only) and Rigid
Polypropylene or PVC
Pipe Air Intake
Floor Standing
or Wall Hung
Installations
Rigid
Polypropylene
(or Flexible
Polypropylene
Liner for
vertical
Venting only)
Horizontal
Standard
(thru sidewall)
The system includes separate Rigid
Polypropylene vent pipe and Rigid
Polypropylene or PVC air intake
pipe terminating thru sidewall with
individual penetrations for the vent
and air intake piping and separate
terminals (tees).
6, 7A, 7B,
9, 9A, 9B,
10, 14, 15
9, 10
C.
Optional Snorkel
(thru sidewall)
Same as above but separate snorkel
type terminals.
11, 14, 15 9, 10
Optional
Vertical
Vertical (thru
roof or chimney/
chase)
The system includes separate
Flexible Polypropylene vent liner
and Rigid Polypropylene vent pipe
combination for venting and Rigid
Polypropylene or PVC air intake
pipe terminating thru roof with
individual penetrations for the vent
and air intake and individual vent /air
terminals.
12, 13, 14,
15, 16
9, 10
Available Optional
Two-Pipe,
Stainless Steel Vent
and PVC/Galvanized
Steel Air Intake
Floor Standing
Installations
Only
Stainless Steel
Horizontal
Standard
(thru sidewall)
The system includes separate
stainless steel vent pipe and PVC/
galvanized steel air intake pipe
terminating thru sidewall with
individual penetrations for the vent
and air intake piping and separate
terminals
9, 17
13A, 13B D.
Optional
Snorkel
(thru sidewall)
Same as above but separate snorkel
type terminals.
11, 17
Vertical
Vertical
(thru roof)
The system includes separate
stainless steel vent pipe and PVC/
galvanized steel air intake pipe
terminating thru roof with individual
penetrations for the vent and air
intake piping and separate terminals.
12, 13, 17
Available Optional
Concentric, Inner
Polypropylene Vent
and Outer Steel Air
Intake
Floor Standing
Installations
Only
Polypropylene
Horizontal
Horizontal
(Wall) Terminal
Concentric vent/air pipe terminates
thru sidewall.
18 thru 25
14, 15 E.
Vertical
Vertical (Roof)
Terminal
Concentric vent/air pipe terminates
thru roof.
18, 19,
20, 21,
26 thru 30