SVF
™
Series 1
Commercial Condensing Gas-Fired Water Boiler
— Boiler Manual
Part number 550-100-250/0819
31
Venting/combustion air — options
#ATEGORY)6
Figure 25
SVF
TM
boiler venting and air piping — OPTIONS and PIPING LIMITS — The table below lists the acceptable
vent/air pipe terminations described in this manual.
USE ONLY the pipe materials listed in Figure 22, page 27
Boiler vent and air connections:
The SVF boiler vent/air connection is sized for the following vent sizes/ materials:
1. SVF 1500/2000 8” Duravent-FasNSeal
2. SVF 2500/3000 10” Duravent-FasNSeal
Installer must provide the correct adapters/reducers needed to connect to other approved vent manufacturer’s products.
SV
F
TM
Model
P
ipe Siz
e
SIDEWALL
Direct Exhaust
VERTICAL
Direct Exhaust
SIDEWALL
Direct Vent
(vent and air out sidewall)
VERTICAL
Direct Vent
(vertical or sidewall air)
SF0061de
VENT
SF0062de
VENT
VENT
AIR
SF0062
AIR
VENT
AIR (option)
See page 36
See page 34
See page 41
See page 43
Thickness of
wall/roof vent penetration;
Max.: 18” Min.: 0”
Thickness of
wall/roof vent penetration;
Max.: 18” Min.: 0”
Thickness of
wall/roof vent penetration;
Max.: 18” Min.: 0”
Thickness of
wall/roof vent penetration;
inches Max.: 18” Min.: 0”
length, equiv. feet
(Note 1)
length, equiv. feet
(Note 1)
length, equiv. feet
(Note 1)
length, equiv. feet
(Note 1)
1500
8”
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
2000
8”
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
2500
10”
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
3000
10"
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
Note 1
REDUCE MAXIMUM VENT/AIR PIPE LENGTHS FOR ELBOWS
If the TOTAL number of elbows used in the vent and air piping and terminations is
more than two elbows in the vent
piping and one elbow
in the air piping,
REDUCE
the maximum lengths above by the following lengths for each ad-
ditional elbow (whether 45° or 90°).
PP – 8" or 10"
- inch vent/air piping — Reduce maximum allowable length by 15 feet for each additional elbow used.
PVC – 8" - inch vent/air piping — Reduce maximum allowable length by 7 feet for each additional elbow used.
PVC – 10"
- inch vent/air piping — Reduce maximum allowable length by 15 feet for each additional elbow used.
NOTE
:
If the pipe manufacturer’s equivalent lengths for elbows is LONGER than the values listed above, use
the pipe manufacturer’s value for length reduction per elbow instead.
Boilers will
derate
as vent/air pipe length increases — see Figure 115, page 120 for derate amount vs piping length.