Navien NPE-180A2 Installation Manual page 83

Multiple reducers can be used to allow
Note
proper connection of 2" vent pipe to
the common vent system.
2. Assemble the wye joint or wye assembly to the
vent pipe. Apply solvent cement to the mating
surfaces.
Apply
Cement
[Hub Wye Assembly]
Apply
Cement
[Hub Reducing Wye Assembly]
The options shown here are only
Note
examples. The setup you choose will
vary based on the installation location,
local building codes, and other factors.
The installer is responsible for all
equipment and detailing required by
local codes.
WARNING
Carbon Monoxide Hazard
To prevent serious injury or death:
ALWAYS use a bubble test kit to check for
●
leaks.
After water heater is installed, fill with water,
●
turn on the boiler and test for leaks using a
bubble test kit.
If you see bubbles form, you will need to
●
repair that section of pipe and bubble test
again.
Installing a Common Vent System 83