Connecting The Pipe To The Common Vent Collar Kit - Navien NPE-180A2 Installation Manual

4. Tighten the four mounting screws to secure the
Common Vent Collar Kit in place. The screws (x
4) are supplied with the Common Vent Collar Kit.
WARNING
If the original vent collar must be repaired or re-
assembled, ensure that it is tightened by using
the 4 provided screws.
5. Remove the front cover of the water heater, and
connect the provided VID jumper wire as shown
below. You must connect it to the wire with the
"VID" label.
Note
The Damper includes a VID jumper wire.
72 Installing a Common Vent System
5.3.2 Connecting the Pipe to the
Common Vent Collar Kit
WARNING
When cutting the vent pipe, ensure that the
cutting plane of the pipe is at a 90° angle with
the pipe axis and is as flat as possible. Vent pipes
with a beveled cutting plane can lead to gasket
failure and flue gas leakage, which may result in
serious injury or death.
90°
Do not use primer or cement on the
Note
appliance connection.
1. Measure 1- / " from the end of the vent pipe,
1
2
then draw a mark at that distance.
1- /
Mark 1
2
the end of the pipe
9 0 C
"
from
1- / "
1
2