
82 Installing a Common Vent System
Specifications
5.9” (150 mm)
1.1” (28 mm)
Part Name
Common Vent Collar Kit
Part No.
30014367B
Material
PP (Polypropylene)
Maintenance Port
Navien Common Vent Collar Kit has a maintenance
port to allow you to easily inspect the operating
condition of the damper plate.
Maintenance port
Damper plate
Maintenance port
Gasket
Maintenance port cover
Fix screw
9.2 Navien Common Vent Collar
Kit (Back-draft Damper)
The Navien Common Vent Collar Kit includes a
backdraft damper preventing the flue gases and
cold outside air from entering the water heater
when the combustion fan is off. The kit includes the
cascade cable.
By closing the exhaust vent as soon as the
combustion cycle ends, the Navien Common Vent
Collar Kit retains heat in the system for longer
periods.
Included Items
Common Vent Collar
Kit
Installation Manual
Condensing W
ater Heater
Common Ven
t System
Installation M
anual
For NPE Series
Water Heaters
Certified to AN
SI Z21.10.3 – C
SA 4.3. (Only fo
r U.S. installatio
ns)
Keep this man
ual for future r
eference when
ever maintena
nce or service
is
required.
-
Do not store o
r use gasoline
or other flam
mable vapors
and liquids in
the vicinity o
f this or any o
ther appliance
.
-
WHAT TO DO
IF YOU SMEL
L GAS
●
Do not try to li
ght any applia
nce.
●
Do not touch a
ny electrical sw
itch; do not us
e any phone in
your building
.
●
Immediately c
all your gas su
pplier from a n
eighbor’s pho
ne. Follow the
gas supplier’s
instructions.
●
If you cannot r
each your gas s
upplier, call th
e fire departm
ent.
-
Installation a
nd service m
ust be perform
ed by a qualifi
ed installer, se
rvice agency o
r the gas supp
lier.
-
This entire m
anual must b
e left for the c
onsumer. The
consumer m
ust read and r
efer to this m
anual for prop
er operation a
nd
maintenance
of the comm
on vent syste
m.
-
The installatio
n must confo
rm with local c
odes or, in th
e absence of lo
cal codes, the
National Fuel
Gas Code,
ANSI Z223.1/N
FPA 54.
-
When applica
ble, the install
ation must co
nform with th
e Manufacture
d Home Const
ruction and Sa
fety
Standard, Titl
e 24 CFR, Part
3280, Mobile
Homes.
WARNING
If the informat
ion in these in
structions is n
ot followed e
xactly, a fire o
r explosion m
ay result, cau
sing property
damage, perso
nal
injury, or deat
h.
Ready-Link
communication
cable
Screw (4 ea)
VID jumper wire
Summary of Contents for NFB-175H
Page 134: ......