Navien NR-180A, Operation & Installation Manual

Page: 51 / 89

INSTALLATION
51
Exhaust
Blind
Condensate
Drain
Intake
Caution : One short radius elbow = 8 feet, One long radius elbow = 5 feet
Total length (L) = H + W
Required
Load (Btuh)
Model
NR-180(A) NR-210(A) NR-240(A)
D=3” D=4” D=5” D=6”
Total length(L: Max. ft)
Till 300,000 2 50 90 100 -
Till 330,000 1 1 50 90 100 -
Till 360,000 2 50 90 100 -
Till 379,000 1 1 50 90 100 -
Till 398,000 2 50 90 100 -
Till 540,000 3 - 60 90 100
Till 559,000 2 1 - 60 90 100
Till 578,000 1 2 - 60 90 100
Till 597,000 3 - 60 90 100
D= 5” D=6” D=7” D=8”
Till 739,000 3 1 70 100 - -
Till 758,000 2 2 70 100 - -
Till 777,000 1 3 70 100 - -
Till 796,000 4 70 100 - -
Till 995,000 5 56 80 100 -
Till 1,194,000 6 - 67 90 100
Till 1,393,000 7 - 57 78 100
D=7” D=8” D=9” D=10”
Till 1,592,000 8 68 89 100 100
Till 1,791,000 9 60 79 100 100
Till 1,990,000 10 54 71 90 100
Till 2,189,000 11 - 65 82 100
Till 2,388,000 12 - 59 75 93
D=9” D=10” D=11” D=12”
Till 2,587,000 13 69 85 100 -
Till 2,786,000 14 64 79 96 100
Till 2,985,000 15 60 74 90 100
Till 3,184,000 16 56 69 84 100