26
4
Sidewall direct venting
(continued)
All vent pipes and air inlets must terminate
at the same height to avoid possibility of
severe personal injury, death, or substantial
property damage.
Multiple vent/air terminations
1. When terminating multiple FTXL’s terminate
each vent/air connection as described in this manual
(FIG. 4-6A).
2. Place wall penetrations to obtain minimum clearance of
12 inches (305 mm) between vent pipe and adjacent air
inlet elbow, as shown in FIG. 4-6B for U.S. installations.
For Canadian installations, provide clearances required
by CSA B149.1 Installation Code.
3. The air inlet of a FTXL is part of a direct vent connection.
It is not classified as a forced air intake with regard to
spacing from adjacent boiler vents.
VENT
12” (305 MM) MIN
15” (381 MM) MAX
12” (305 MM) MIN. BETWEEN EDGE
OF AIR PIPE AND ADJACENT VENT
PIPE
AIR
Figure 4-6A
Multiple Vent Terminations w/
Field Supplied Fittings (must also comply with
Figure
4-1A
)
⚠
WARNING
4. Mount and secure the vent plate to the wall using stainless
steel screws.
5. Seal all gaps between the pipes and wall. Seal around the
plate to the wall assuring no air gaps.
6. Assemble the vent cap to the vent plate (see FIG.’s 4-5B
and 4-5C). Insert the stainless steel screws into the vent
cap screw hole openings and securely attach the vent cap
to the vent plate.
7. Seal all wall cavities.
8. PVC/CPVC terminations are designed to accommodate any
wall thickness of standard constructions per the directions
found in this manual.
9. Stainless steel terminations are designed to penetrate walls
with a thickness up to 9.25 inches of standard construction.
Figure 4-5B
PVC/CPVC Sidewall Termination Assembly
VENT PIPING
GALVANIZED
THIMBLE
VENT CAP
AIR PIPING
WALL PLATE
VENT PLATE
VENT
AIR
CENTERLINE WIDTH
Model
Air
Vent Centerline Width
1000
6" (152 mm) 6" (152 mm)
7 3/4" (197 mm)
Table 4B
Sidewall Vent Centerline Dimensions
SIDEWALL
ADAPTER
(AIR)
SIDEWALL
ADAPTER
(VENT)
WALL
PLATE
GALVANIZED
THIMBLE
SIDEWALL
RETAINING
PLATE
VENT
PLATE
VENT
CAP
IMG00085
Figure 4-5C
Polypropylene Sidewall Termination Assembly
12" MIN. BETWEEN EDGE OF AIR
INLET AND ADJACENT VENT OUTLET
VENT / AIR
TERMINATION
VENT
AIR
Figure 4-6B
Multiple Vent Terminations (must also
comply with
Figure
4-1B
)
Installation & Operation Manual