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28 | Installation
Wall Terminal
3" (80 mm)
Ø 2" (60 mm)
Ø 3" (80 mm)
Concentric kits
Ø 2" (60 mm)
Ø 3" (125mm)
Wall termination kit
Ø 2" (60 mm)
Ø 3" (80 mm)
Low profile termination kit
Ø 3" (Ø 80 mm)
twin pipe termination
Ø 4" (Ø 100 mm)
twin pipe termination
Ø 3" (Ø 80 mm)
twin pipe termination
Ø 4" (Ø 100 mm)
twin pipe termination
2" (60mm) single pipe horizontal
termination
Ø 3" (Ø 80 mm)
single pipe horizontal
termination
2" / 4" (80/125 mm) concentric
termination
3" / 5" (80/125 mm) concentric
termination
Tab. 7
Wall terminals
4 .7 .4
Vent and combustion air pipe length [For single boiler
installations]
The maximum length for vent and combustion air pipes can be found in
the following table. Please note the length is for each vent / combustion
air pipe and not combined.
SSB85
Ø2"(60 mm)
50 ft (15 m)
Ø3" (80 mm)
60 ft (18 m)
Ø4" (110 mm)
80 ft (24 m)
Tab. 8
Maximum length for air and combustion pipe
In the following tables are listed the equivalent length for PVC/CPVC
pipes and PP pipes:
Ø2" (60 mm)
1 ft vent pipe
1 ft
45° elbows
2.5 ft
90° elbows
5 ft
Tab. 9
Equivalent length for PVC and CPVC pipes
Ø 2"
Ø 3"
(60 mm)
(80 mm)
1 ft vent pipe
1 ft
1 ft
1 ft flex pipe
2 ft
2 ft
45° elbows
3 ft
3 ft
90° elbows
5 ft
7 ft
Tee
9 ft
12 ft
Tab. 10 Equivalent length for PP pipes
For the equivalent vent length of Stainless Steel AL29-4C venting
material and the roof and wall terminals please refer to the installation
manual of the vent system supplier.
6720818456 (2018/06) US
Material
parallel stainless steel
PVC or CPVC
PVC
PVC
PVC/parallel stainless steel
PVC/parallel stainless steel
PP
PP
PP
PP
SSB120
SSB160
50 ft (15 m)
50 ft (15 m)
60 ft (18 m)
60 ft (18 m)
80 ft (24 m)
80 ft (24 m)
Ø3" (80 mm)
Ø4" (100 mm)
1 ft
1 ft
3 ft
4 ft
6 ft
7 ft
Ø 4"
Ø 5"
Ø 6"
Ø 8"
(110 mm)
(130 mm)
(150 mm)
(200 mm)
1 ft
1 ft
1 ft
1 ft
2 ft
2 ft
N/A
N/A
5 ft
6 ft
6 ft
13 ft
12 ft
14 ft
14 ft
19 ft
19 ft
21 ft
22 ft
29 ft
Supplier
Fields
IPEX System 636
IPEX System 636
IPEX System 636
ANSI/ASTM D1785 or Field Controls
ANSI/ASTM D1785 or Field Controls
M&G Duravent PolyPro or
Centrotherm InnoFlue
M&G Duravent PolyPro
M&G Duravent PolyPro
M&G Duravent PolyPro or
Centrotherm InnoFlue
To calculate the allowed length of a vent and combustion air system
follow this example:
When using a SSB85 with Ø 2" (Ø 60 mm) PP system with 3 x 45°
-elbows and a 90° -elbow as termination, then the total venting length
may not exceed 50 ft. ( 15 m).
3 × 45°-elbow = 3 x 3 ft. (0.9 m) = 9 ft. (2.7 m)
1 × 90°-elbow terminal = 5 ft. (1.5 m).
Total friction loss equivalent =14 ft. (4.2 m)
Total venting length for this example is:
SSB85 = 50 ft. (15 m) – 14 ft. (4.2m) = 36 ft. (11 m) each for
the intake and exhaust piping.
When the total flue system equivalent length is verified it is necessary to
set the par N° 99 "Flue length range" according to the total length of the
installed flue system as defined in the following table:
Value
2" System with
for par
Max. eq. length of
99
1
0 to 25 ft
2
26 to 50 ft
3
51 to 75 ft
4
76 to 100 ft
Tab. 11 Value for the par N° 99 depending on the sum of equivalent
length of vent and combustion air pipe
Part Number
46546901
196005 (PVC)
196006 (PVC), 197009 (CPVC)
081216
081219
196984
196985
46600203
46600204
3PPS-HTPL (M&G Duravent) Or
ISLPT0303 (Centrotherm)
3PPS-HTPL (M&G Duravent)
2PPS-HSTL
3PPS-HSTL (M&G Duravent)
2PPS-HSTL (M&G Duravent) or
ICWT352 or ICWS3513 (Centrotherm)
3PPS-HKL (M&G Duravent) or
ICWT352 or ICWS3513 (Centrotherm)
3" System with
4" System with
Max. eq. length of
Max. eq. length of
0 to 30 ft
0 to 40 ft
31 to 60 ft
41 to 80 ft
61 to 90 ft
81 to 120 ft
91 to 120 ft
121 to 160 ft
SSB
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