30
IV. Venting
D. Stainless Steel Venting (continued)
• Allow the silicone to cure per the silicone
manufacturer’s instructions before
operating the boiler.
ii.
Combustion Air Termination
• Use a tee in the upright position. Tee
should protrude the same distance from the
wall as the exhaust terminal as shown in
Figure 5.
• Install a rodent screen (not supplied) in the
inlet terminal. Use a screen having 1/2 in.
x 1/2 in. (13 mm x 13 mm) mesh.
b. Optional Two-Pipe Snorkel Termination
See Figures 6A and 6B.
This installation will allow a maximum of
7 ft. (2.1 m) vertical exterior run of the vent/
combustion air piping to be installed on the
approved AL29-4C stainless steel horizontal
venting application.
i.
Vent Termination
• After penetrating wall, install the
appropriate manufacturer’s 90° elbow so
that the elbow leg is in the up direction.
• Install maximum vertical run of 7 ft.
(2.1 m) of appropriate manufacturer’s vent
pipe as shown in Figure 6A.
• At top of vent pipe length install another
appropriate manufacturer’s 90° elbow so
that the elbow leg is opposite the building’s
exterior surface.
• Install horizontal vent terminal.
• Brace exterior piping if required.
Figure 16: Field Installation of Two-Pipe Vent
System Adapter for Stainless Steel
ii.
Combustion Air Termination
• After penetrating wall, install a 90° elbow
so that the elbow leg is in the up direction.
• Install maximum vertical run of 7 ft.
(2.1 m) of combustion air pipe as shown in
Figure 6B.
• At top of vent pipe length install another
90° elbow so that the elbow leg is opposite
the building’s exterior surface.
• Install rodent screen (not supplied) and
horizontal vent terminal.
• Brace exterior piping if required.
5. Vertical Vent Termination
a. Standard Two-Pipe Termination
See Figures 7 and 8.
i.
Vent Termination
• Use the terminal supplied by the vent
system manufacturer shown in Table 11.
Follow manufacturer’s instructions to
attach terminal to vent system.
ii.
Combustion Air Termination
• Install vertical combustion air terminal.
Vertical combustion air terminal consists of
a 180° bend (comprised of two 90° elbows)
as shown in Figure 7.
• Install rodent screen (not supplied) in the
combustion air terminal. Use a screen
having 1/2 in. x 1/2 in. (13 mm x 13 mm)
or larger mesh.
6. Running Flexible Stainless Steel Vent (Liner)
Through Unused Chimney or Chase
WARNING
Asphyxiation Hazard. Flexible stainless steel
vent must be installed only in an UNUSED
chimney flue. A chimney flue is considered
UNUSED when it is not being used for any
appliance venting. Where one of the multiple
flues is being used for an appliance venting, the
flexible stainless vent installation is permitted
through an adjacent unused flue providing a
local authority having jurisdiction approves such
installation.
Manufacturer
Vent
System
Nominal Dia.
PVC to SS
Adapter
Wall Thimbles
Horizontal
Termination
Vertical
Termination
M&G/DuraVent
FasNseal
4 in.
(100 mm)
810005231
FSWT4
Tee: FSTT4
FSBS4
Z-Flex
SVE Series III
(“Z-Vent III”)
4 in.
(100 mm)
2SVSTTA04.5
2SVSWTF04
Tee: 2SVSTTX04
2SVSTPX04
NOTE: See vent system manufacturer’s literature for other part numbers that are required such as straight pipe, elbows, firestops and vent
supports.
Table 11: Acceptable Stainless Steel Vent Systems and Vent Components
Содержание Phantom-X PHNTM210
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Страница 54: ...54 VIII Electrical continued Figure 27 Ladder Diagram...
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