Navien NFB-175H, Руководство по установке, Страница: 84 / 135

84 Installing a Common Vent System
1. Measure 1- 1 /
2
” from the end of the vent pipe,
then draw a mark at that distance.
Mark 1-1/2” from
the end of the pipe
1-1/2”
2. Insert the vent pipe into the vent collar to start
the vent run. Make sure to completely slide the
vent into the collar until the end makes contact
with the bottom of the socket.
Note
Verify that 1-
1
/
2
” of the pipe has been
completely inserted into the collar and
that the mark is no longer visible.
3. Tighten the clamp with a socket wrench (8 mm)
to properly seal the joint.
5. Remove the front cover of the boiler, 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.
VID
9.3.2 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 C
90°
Note
Do not use primer or cement on the
appliance connection.