Navien NPE-180A2 Installation Manual page 57

Low Profile Two-Pipe Sidewall Venting*
●
Intake Air
(from outdoors)
Exhaust
(from
appliance)
[Exterior View]
* IPEX and Centrotherm Low Profile terminations
only
** Clearance above highest anticipated snow level
or grade, or as required by local codes, whichever
is greater.
Only the following orientations are
Note
allowed for twin pipe terminations.
NEVER install in this orientation with the
exhaust located nearest to the ground.
Two-Pipe Snorkel Sidewall Venting
●
Intake Air
* Clearance above highest anticipated snow level or
grade, or as required by local codes, whichever is
greater.
Flexible Vent Systems (Polypropylene and
●
Stainless Steel)
Only VERTICAL installations are
Note
●
allowed. Horizontal terminations are
prohibited.
The use of proper adapters and
●
supports are required to fully
complete the installation.
Exhaust Gas
Installing the Water Heater 57