Multiple Vent/Air Terminations - Lochinvar FTxl 400 Installation & Operation Manual

4
Sidewall direct venting
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
Table 4B Sidewall Vent Centerline Dimensions
Model Air
400 - 600 4" (102 mm) 4"(102 mm)
725 - 850 4" (102 mm) 6" (152 mm)
Figure 4-5C Polypropylene Sidewall Termination Assembly
Vent Centerline Width
5 5/8" (143 mm)
7 3/4" (197 mm)
Installation & Operation Manual
(continued)

Multiple vent/air terminations

1. When terminating
each vent/air connection as described in this manual
(FIG. 4-6A).
All vent pipes and air inlets must terminate
WARNING
at the same height to avoid possibility of
severe personal injury, death, or substantial
property damage.
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 classifi ed as a forced air intake with regard to
spacing from adjacent boiler vents.
Figure 4-6A Multiple
Field Supplied Fittings (must also comply with
Figure 4-1A)
Figure 4-6B Multiple Vent Terminations (must also
comply with Figure 4-1B)
multiple FTXL's terminate
Vent Terminations
27
w/