Navien NR-180 Installation Manual page 43

Navien Gas Water Heater Installation
"H"
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
"D"
"W"
Condensate
Drain
Model
D= 3"
NR-210(A) NR-240(A)
50
1 50
2 50
1 1 50
2 50
3
2 1
1 2
3
D= 5"
3 1 70
2 2 70
1 3 70
4 70
5 56
6 -
Exhaust
Total length(L: Max. ft)
D=4" D=5" D=6"
90 100 -
90 100 -
90 100 -
90 100 -
90 100 -
60 90 100
60 90 100
60 90 100
60 90 100
D=6" D=7" D=8"
100 - -
100 - -
100 - -
100 - -
80 100
67 90 100
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