Venting/Combustion Air - Options - Weil-McLain SlimFit Manual

SlimFit
™
commercial condensing gas
Venting/combustion air — options
Figure 27
SlimFit 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 28, page 31 | See Figure 107, page 115 for part/kit numbers
Boiler vent and air connections:
Provide a vent pipe mfr's SlimFit VENT/AIR ADAPTER at boiler vent connection and air connection (if used). See Fig-
ure 107, page 115 for part/kit numbers
Provide vent pipe manufacturer's reducer(s) as needed to meet vent/air pipe size used.
SIDEWALL
Direct Exhaust
See page 37
Max/Min length, feet
6"
100 max / 6 min
SF1000
8"
DO NOT USE 8"
6"
100 max / 6 min
SF1500
8"
DO NOT USE 8"
6"
DO NOT USE 6"
SF2000
8"
150 max / 6 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 additional
elbow (whether 45° or 90°).
6-inch vent/air piping — Reduce maximum allowable length by 15 feet for each additional elbow used.
Note 1
8-inch vent/air piping — Reduce maximum allowable length by 7 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 119, page 126 for derate amount vs piping length.
30
VERTICAL
Direct Exhaust
SF0061de
See page 39
Max/Min length, feet
(note 1)
100 max / 6 min
DO NOT USE 8"
100 max / 6 min
DO NOT USE 8"
DO NOT USE 6"
150 max / 6 min
REDUCE MAxIMUM VENT/AIR PIPE LENgThS FOR ELBOWS
-
fired water boiler
SIDEWALL Direct Vent
(vent and air out sidewall)
See page 43
Max/Min length, feet
(note 1)
100 max / 6 min
150 max / 6 min
100 max / 6 min
150 max / 6 min
DO NOT USE 6"
150 max / 6 min
— Boiler Manual
VERTICAL Direct Vent
(vertical or sidewall air)
See page 45
Max/Min length, feet
(note 1)
100 max / 6 min
150 max / 6 min
100 max / 6 min
150 max / 6 min
DO NOT USE 6"
150 max / 6 min
Part number 550-100-116/0713
(note 1)