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INDUCED DRAFT HIGH EFFICIENCY BOILERS
Maximum Horizontal Vent Length For Stainless
Steel Vent Pipe - 30' Plus One 90° Elbow Plus
VentTerminal
Minimum HorizontalVent Length - 2' PlusOne 90°
ElbowVent Termination
Additional elbowsare equivalentto6 feet ofstraight
pipe for 4" diameter 90° elbow or 3 feet of
straight pipe for 3° diameter 90° elbow
2, 3, 4, 5, Section Boilers use 3"vent pipe.
6, 7 Section Boilers use 4" vent pipe.
OPTIONAL TERMINATION F[TTTNG
TJERNLUNB SIDE WALL VENT HOOD
VH-I_3" FOR 2,3,4,5 SECTION BOILERS
VH-I-4' FOR 6,7 SECTION BOILERS
PER FBBT_\
CHOICE OF VENT PIPE MATERIAL
a) U.L. Listed Z-Flex Z-Vent Stainless Steel Vent Pipe.
b) UL ListedHeat-FabSat-T-VentSlainlessSteelVentPipe.
c) U.L Listed Flex-L Star-34 Stainless Steel VentPipe.
d) U.L Listed ProTech Systems FssNSeal Stainless st_eel
Vent Pipe.
TERMINATION FITTING
90" EL_OW, POINT;NO DOWN, SAME MATERIAL AN_
PIPE SIZE AS VENT[NO SYSTEM, EQUIP WITH SCREEN
(M[N. I/4" MESH) TO KEEP OUT BI_S ANB RODENTS,
FOR A COMBUSTIBLE WALL, USE A THIMBLE, SELECT Ag
FOLLOWS=
VENT RIPE; Z-VENT, SAF-T-VENT, STAR-34
THIMBLE: SIMPSON DURAVENT THIMBLE
#905295 - 3" THIMBLE
#915_95 - 4" THIMBLE
VENT PIPE_ FASNSE_L
TH[MBLD FASNSEAL WALL THIMBLE
#FSVT03 - 3" TH[MBLE
#FS_T04 - 4" THTMBLE
PITCH DOWN TOWARD
OUTSIDE I/4"
PER FOD___
HORIZONTAL VENTING ACCESSORIES PART NUMBERS
DESCRIPTION
3" side Wall Vent Hood (Tjernlund VH-1-3")
4" side Wall Vent Hood (Tjernlund VH-1-4")
3" Thimble (Simpson 905295)
4" Thimble (Simpson 915295)
PART NUMBER
146-29-010
146-29-011
146-29-013
146-29-014
14
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