Navien NPE-180A2 Installation Manual page 81

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.
Improper installation of the vent collar may
result in serious injury or death.
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.
6.3.2 Connecting the Pipe to the
Common Vent Collar Kit
WARNING
ALWAYS properly cut the pipe at a 90° angle and
deburr the vent pipe before installing so the
pipe is fully connected to the exhaust gas vent
fitting.
Use water (NOT grease) to lubricate the end of
the vent pipe before inserting into the Common
Vent Collar.
ALWAYS insert the vent pipe 1.5 in. (38 mm)
into the Common Vent Collar using a twisting
motion until the end reaches the bottom of the
socket.
If flue gas leaks, inhalation of carbon monoxide
may result in serious injury or death.
90°
Do not use primer or cement on the
Note
appliance connection.
Installing a Common Vent System
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