Terminating The Vent - Navien NFC-250/175H Installation Manual

5.6 Terminating the Vent

Before installing the boiler, determine what type of
vent termination is appropriate for the installation
location and materials. The subsections that follow
describe some typical venting configurations, but
do not include all possible options.
The following PVC vent terminations are approved
for use with this appliance:
PVC Concentric Vent Kit (Sch 40 - UL1738/ULC
●
S636):
2 in Vent Kit
3 in Vent Kit
IPEX Low Profile TerminationKit (Certified to
●
ULCS636)
2 in Low Profile Vent Kit #196984
3 in Low Profile Vent Kit #196985
IPEX Low Profile Termination Kit (Certified to
●
UL1738)
2 in Low Profile Vent Kit #397984
3 in Low Profile Vent Kit #397985
The following polypropylene vent terminations are
approved for use:
Duravent PolyPro Horizontal Concentric
●
Termination Kit (Certified to ULCS636)
2 in x 4 in Concentric Vent Kit #2PPS-HKL
3 in x 5 in Concentric Vent Kit #3PPS-HKL
Centrotherm Innoflue Low Profile Termination Kit
●
(Certified to UL1738 and ULCS636)
2 in Vent Kit #ISLPT0202
3 in Vent Kit #ISLPT0303
Centrotherm Concentric Vent Kit (Certified to
●
UL1738 and ULCS636)
2 in Vent Kit #ICWT242
3 in Vent Kit #ICWT352
Hart & Cooley Polyflue Horizontal Termination Kit
●
(Certified to ULCS636)
2 in Vent Kit #2PF-HCT
3 in Vent Kit #3PF-HCT
Z-Flex Z DENS Horizontal Termination Kit
●
(Certified to UL1738 and ULCS636)
2 in Vent Kit #2ZDHK2
3 in Vent Kit #2ZDHK3
The following polypropylene vent components are
approved for use as terminations:
Duravent PolyPro® (Certified to ULCS636)
2PPS-E90L or 3PPS-E90L (2" or 3" 90° Elbow)
2PPS-E45L or 3PPS-E45L (2" or 3" 45° Elbow)
2PPS-TL or 3PPS-TL (2" or 3" Tee)
2PPS-BG or 3PPS-BG (2" or 3" Birdscreen)
Centrotherm Innoflue® (Certified to UL1738 and
ULCS636)
ISELL0287 or ISELL0387 (2" or 3" 87° Elbow)
ISELL0245 or ISELL0345 (2" or 3" 45° Elbow)
IST02 or IST03 (2" or 3" Tee)
IASPP02 or IASPP03 (2" or 3" Birdscreen)
Hart & Cooley Polyflue™ (Certified to ULCS636)
2PF-90 or 3PF-90 (2" or 3" 90° Elbow)
2PF-45 or 3PF-45 (2" or 3" 45° Elbow)
2PF-T or 3PF-T (2" or 3" Tee)
2PF-HVST or 3PF-HVST (2" or 3" Birdscreen)
The following stainless steel (AL29-4C) vent
components are approved for use as terminations:
Duravent FasNSeal® (Certified to UL1738 and
ULCS636)
FSELB9003 (3" 90° Elbow)
FSELB8803 (3" 88° Elbow)
FSELB4503 (3" 45° Elbow)
FST3 (3" Tee)
FSBS3 (3" Birdscreen)
Heat Fab Saf-T Vent® EZ Seal (Certified to UL1738
and ULCS636)
9314(LR) or 9314TERM (3" 90° Elbow)
9311 (3" 45° Elbow)
9390TEE (3" Tee)
9392 (3" Birdscreen)
Z-Flex Z Vent (Certified to UL1738 and ULCS636)
2SVEEWCF0390 (90° Elbow)
2SVEEWCF0345 (45° Elbow)
2SVSTTF03 (3" Tee)
Only the termination models listed
Note
●
above are approved for use with this
appliance.
Only terminations of the same
●
manufacturer as the vent system must
be used.
Refer to the vent manufacturer's
●
instructions for detailed installation
procedures and guidelines.
Venting for Combustion Air 75