79Installing a Common Vent System
Included Items
Common Vent Collar
Kit
Installation Manual
Condensing Water Heater
Common Vent System
Installation Manual
For NPE Series Water Heaters
Certied to ANSI Z21.10.3 – CSA 4.3. (Only for U.S. installations)
Keep this manual for future reference whenever maintenance or service is
required.
-
Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any other appliance.
-
WHAT TO DO IF YOU SMELL GAS
●
Do
not
try to
light any
appliance.
●
Do
not touch any electrical switch;
do
not use any phone
in
your
building.
●
Immediately call your gas supplier from
a
neighbor’s phone. Follow the gas supplier’s
instructions.
●
If
you cannot reach your gas supplier, call the re
department.
-
Installation and service must be performed by a qualied installer, service agency or the gas supplier.
-
This entire manual must be left for the consumer. The consumer must read and refer to this manual for proper operation and
maintenance of the common vent system.
-
The installation must conform with local codes or, in the absence of local codes, the National Fuel Gas Code,
ANSI Z223.1/NFPA 54.
-
When applicable, the installation must conform with the Manufactured Home Construction and Safety
Standard, Title 24 CFR, Part 3280, Mobile Homes.
WARNING
If the information in these instructions is not followed exactly, a re or explosion may res ult, causing pr operty damage, personal
injury, or death.
Ready-Link
communication
cable
Screw (4 ea)
VID jumper wire
Specifications
5.9” (150 mm)
1.1” (28 mm)
Part Name Common Vent Collar Kit
Part No. 30014367*
Material PP (Polypropylene)
Unit 1
Unit 2
Unit 12
[Non-Direct Vent]
Note
The illustration is intended for
reference purposes only.
6.2 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.
Note
When using a common vent in a
cascade system, backflow devices
are required to prevent exhaust from
entering the building.