Navien NPE-180A Service Manual page 158

CAUTION
Regardless of the vent size listed in the table, the connection to the common vent must always be as large as the largest connector. If the
●
largest connector and the recommended vent are the same size, use the next largest size for the vent.
One short radius elbow = 8 feet, One long radius elbow = 5 feet
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Total length (L) = W + H
Required Load
NPE-180A
(Total BTU/H)
NPE-180S
300,000 2
330,000 1
360,000
398,000
540,000
559,000
578,000
597,000
739,000
758,000
777,000
796,000
995,000
1,194,000
1,393,000
1,592,000
1,791,000
1,990,000
2,189,000
2,388,000
2,587,000
2,786,000
2,985,000
3,184,000
Model
NPE-210A NPE-240A
NPE-210S NPE-240S
1
1 1
2
3
2 1
1 2
3
3 1
2 2
1 3
4
5
6
7
8
9
10
11
12
13
14
15
16
Total length (ft)
D= 3" D=4"
60(18m) 100(30m)
60(18m) 100(30m)
60(18m) 100(30m)
60(18m) 100(30m)
70(21m)
70(21m)
70(21m)
70(21m)
D=5" D=6"
80(24m) 120(37m)
80(24m) 120(37m)
80(24m) 120(37m)
80(24m) 120(37m)
60(18m) 90(27m)
- 80(24m)
70(21m)
D=7" D=8"
82(25m) 107(33m)
73(22m) 95(29m)
65(20m) 85(26m)
78(24m)
71(22m)
D=9" D=10"
83(25m) 103(31m)
77(23m) 95(29m)
72(22m) 89(27m)
68(21m) 83(25m)
D=5" D=6"
160(48m) -
160(48m) -
160(48m) -
160(48m) -
110(33m) 160(48m)
110(33m) 160(48m)
110(33m) 160(48m)
110(33m) 160(48m)
D=7" D=8"
- -
- -
- -
- -
130(40m) -
100(30m) 140(43m)
90(27m) 120(36m)
D=9" D=10"
135(41m)
120(37m) 148(45m)
108(33m) 133(41m)
98(30m) 121(37m)
90(27m) 111(34m)
D=11" D=12"
124(38m)
115(35m) 137(42m)
108(33m) 128(39m)
101(31m) 120(36m)
Installation the Outdoor Vent Cover 157