Weil-McLain SVF 1500 Manual page 31

SVF
™
Series 1
Commercial Condensing Gas-Fired Water Boiler — Boiler Manual
Venting/combustion air — options
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.
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.
SIDEWALL
Direct Exhaust
VENT
See page 36
Thickness of
wall/roof vent penetration;
Max.: 18" Min.: 0"
length, equiv. feet
1500 8"
100 max. / 10 min.
8"
2000
100 max. / 10 min.
2500 10"
100 max. / 10 min.
3000 10"
100 max. / 10 min.
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.
Note 1
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.
Part number 550-100-250/0819
USE ONLY the pipe materials listed in Figure 22, page 27
VERTICAL
Direct Exhaust
SF0061de
SF0062de
See page 34
Thickness of
wall/roof vent penetration;
Max.: 18" Min.: 0"
(Note 1)
length, equiv. feet
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
REDUCE MAXIMUM VENT/AIR PIPE LENGTHS FOR ELBOWS
SIDEWALL Direct Vent
(vent and air out sidewall)
VENT
AIR
VENT
See page 41
Thickness of
wall/roof vent penetration;
Max.: 18" Min.: 0"
(Note 1)
length, equiv. feet
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
VERTICAL Direct Vent
(vertical or sidewall air)
AIR VENT
AIR (option)
SF0062
See page 43
Thickness of
wall/roof vent penetration;
inches Max.: 18" Min.: 0"
(Note 1)
length, equiv. feet
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
100 max. / 10 min.
(Note 1)
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