Navien NR-180(A) Operation & Installation Manual page 51

Blind
Intake
Caution: One short radius elbow = 8 feet, One long radius elbow = 5 feet
Total length (L) = H + W
Required
Load (Btuh)
NR-180(A)
Till 300,000 2
Till 330,000 1
Till 360,000
Till 379,000
Till 398,000
Till 540,000
Till 559,000
Till 578,000
Till 597,000
Till 739,000
Till 758,000
Till 777,000
Till 796,000
Till 995,000
Till 1,194,000
Till 1,393,000
Till 1,592,000
Till 1,791,000
Till 1,990,000
Till 2,189,000
Till 2,388,000
Till 2,587,000
Till 2,786,000
Till 2,985,000
Till 3,184,000
Model
NR-210(A) NR-240(A)
1
2
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
Exhaust
Condensate
Drain
Total length(L: Max. ft)
D=3" D=4" D=5"
50 90 100
50 90 100
50 90 100
50 90 100
50 90 100
- 60 90
- 60 90
- 60 90
- 60 90
D= 5" D=6" D=7"
70 100 -
70 100 -
70 100 -
70 100 -
56 80 100
- 67 90
- 57 78
D=7" D=8" D=9" D=10"
68 89 100
60 79 100
54 71 90
- 65 82
- 59 75
D=9" D=10" D=11" D=12"
69 85 100
64 79 96
60 74 90
56 69 84
D=6"
-
-
-
-
-
100
100
100
100
D=8"
-
-
-
-
-
100
100
100
100
100
100
93
-
100
100
100
51