Navien Common Vent Collar Kit (Back-Draft Damper) - Navien NCB-190/060H Installation & Operation Manual

Example of a Typical Installation
(Direct Vent Only)
The following illustration depicts an example of a
common vent system installed for a cascade system
of 1 combi-boiler (NCB-H Model) and 7 Navien water
heaters (NPE Model).
The illustration is intended for
Note
●
reference purposes only.
The maximum allowable vent length
●
of the pipe branch connecting the
boiler to the common vent trunk is
20 feet.
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 boiler 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.
When using a common vent in a
Note
cascade system, backflow appliances
are required to prevent exhaust from
entering the building.
Included Items
Common Vent Collar
Kit
Installation Manual
Ready-Link
communication cable
Screw (4 ea)
VID jumper wire
Specifications
Part Name
Part No.
Material
Installing a Common Vent System
Con den
sing Wat
Co m m er Hea
ter
on Ve nt
In sta lla
Sy ste m
tio n M
For NP an ua l
E Ser ies
Wa ter
He ate rs
Certi ed to ANSI
Keep this Z21.10 .3 – CSA
require manua 4.3. (Only
d. l for future referen for U.S.
ce whene installa tions)
ver mainte
WAR NING nance or service
is
If the inform
ation in
injury, or death. these instruc
tions is
- Do not not follow
store or use gasoli ed exactl
- WHAT ne or other y, a re or explos
Do not TO DO IF YOU amma ion may
try to light SMELL GAS ble vapor result, causin
Do not any applia s and liquid g prope damag
touch any electr nce. s in the vicinit rty e, person
Imme diately ical switch y of this al
If you canno call your ; do not or any other applia
t reach gas suppl use any nce.
- Install your gas ier from a neigh phone in your
ation and suppl ier, bor's phone buildi ng.
- This entire servic e must call the . Follow
manu be perfor re depar tment . the gas suppli er's
maint enanc al must med by a quali instru ctions
e of the comm be left for the ed install .
- The install on vent consu mer. The er, servic
ANSI Z223.1 ation must system . consu e agenc y or the
/NFPA confor m with mer must read and gas suppli
- When applic 54. local codes refer to er.
Stand able, the or, in the this manua
ard, Title 24 CFR, install ation must absen ce of local l for prope
Part 3280, confor codes , the Nation r opera tion and
Mobil m with the Manuf al Fuel
e Home s. acture Gas Code,
d Home
Constr uction
and Safety
5.9" (150 mm)
1.1" (28 mm)
Common Vent Collar Kit
30014367A
PP (Polypropylene)
87