Allowable V Ent L Ength; Ent C Onfiguration Options - Navien CR-180 Installation Manual

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Venting:
Allowable Vent Lengths
MODEL MAX
SERIES LENGTH
180 70'
210 100'
240 100'
NOTE: The maximum lengths listed above are for the exhaust vent section
..
only. The intake vent length can be of equal length .
Vent Configuration Options:
The following diag rams represent some typical venting configurations and are
incl uded to assist you in you r designing you r vent system . Possible
configu rations are not limited to these diagrams.
Option #1 : 3" 2-pipe side wall vent
l ntertior View
Option #2: Non-concentric venting through a side wall. Air is drawn
from different location at a minimum of 1 2" from the termination.
Please try to minimize the length of the air intake vent length.
l ntertior View
MAX # of
ELBOWS
6
6
Each 90
6
Each 45
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EQUIVALENT LENGTHS
Reduce the maximum vent length
accordingly for each elbow used:
°
elbow equates to 5 linear feet of vent.
°
elbow equates to 2 linear feet of vent.
Exterior View
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Exterior View