Install Instructions

23
107750-01 - 9/17
Vent Option 1 2 3 4 5 6 7 8
Illustrated in Figure
7.6, 7.7,
7.8
7.6, 7.7,
7.8
7.9, 7.10 7.9, 7.10 7.9 7.9 7.9 7.9
Pipe
Penetration
through
Structure
Vent Wall Wall Wall Wall Wall Wall Wall Wall
Intake Wall Wall Wall Wall Wall Wall Wall Wall
Material
Vent
CPVC/
PVC
(Note 2)
CPVC/
PVC
(Note 2)
DuraVent
PolyPro
(Rigid)
DuraVent
PolyPro
(Rigid)
Selkirk
Polyue
Selkirk
Polyue
Centro-
therm
InnoFlue
SW
Centro-
therm
InnoFlue
SW
Intake PVC PVC PVC PVC PVC PVC PVC PVC
Nominal
Diameter
Vent 3" 4" 3" 4" 3" 4" 3" 4"
Intake 3" 4" 3" 4" 3" 4" 3" 4"
Min Equivalent Vent Length:
Model Sizes
320 30" 30" 30" 30" 30" 30" 30" 30"
399 30" 30" 30" 30" 30" 30" 30" 30"
Max Equivalent Vent Length (Note 1):
Model Sizes
320 60ft 135ft 60ft 135ft 60ft 135ft 60ft 135ft
399 50ft 135ft 50ft 135ft 50ft 135ft 50ft 135ft
Terminal
Option A
(Fittings)
Vent
Coupling
w/screen
(Note 3)
Coupling
w/screen
(Note 3)
3PPS-12B
or
3PPS-36B
w/screen
4PPS-12B
or
4PPS-36B
w/screen
3PF-10UV
or
3PF-39UV
w/screen
4PF-10UV
or
4PF-39UV
w/screen
ISEP03 or
ISEP0339
w/screen
ISEP04 or
ISEP0439
w/screen
Intake
Elbow
w/screen
(Note 3)
Elbow
w/screen
(Note 3)
Elbow
w/screen
Elbow
w/screen
Elbow
w/screen
Elbow
w/screen
Elbow
w/screen
Elbow
w/screen
Terminal Option B
(Ipex Low Prole)
Ipex #
196985
Ipex
196986
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Terminal Option C
(Diversitech HVENT)
HVENT-3
Not
Available
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Terminal Option D
(Ipex FGV Concentric)
Ipex
196006
Ipex
196021
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Terminal Option E
(Diversitech CVENT)
CVENT-3 CVENT-4
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Terminal Option F
(DuraVent Horizontal
Concentric)
Not
Permitted
Not
Permitted
3PPS-HK 4PPS-HK
Not
Permitted
Not
Permitted
Not
Permitted
Not
Permitted
Notes:
1. Max vent lengths shown also apply to the intake. For example, Vent Option #1 may have up to 60ft of vent pipe and also up to
60 ft of intake pipe.
2. At least 30" of CPVC pipe, and at least one CPVC elbow, must be installed between the boiler's vent connection and PVC pipe.
Downstream vent pipe can be PVC except as noted in text.
3. PVC Terminal coupling and inlet elbow may be offset on snorkels as shown in Figure 7.12.
VII. Venting B. Design Requirements Unique to Horizontal Twin Pipe Venting Systems (continued)
Table 7.5: Summary of Horizontal Twin Pipe Venting Options