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12 - Install the side vent sealing plates and gaskets on
the exterior of the cabinet as shown in FIGURE
22. Secure with six mounting screws (four reused
and two provided from bag assembly). Holes are
pre-punched in the parts and cabinet, no drilling is
required.
13 - Install sheet metal screws (provided) to seal extra
two holes in cabinet not used with side vent clamps.
IMPORTANT
Side vent sealing plates and side vent sealing gaskets
must be used when converting to right side venting.
Failure to use gaskets and plates may lead to improper
operation of unit.
Exhaust/Air
Intake Connections
Pipe Clamp
Hose Clamp
FIGURE 19
Sheet Metal
Patch Plate
FIGURE 20
Crawl Space and Extended Horizontal Venting
Lennox provides kit 51W18 (USA) and kit 15Z70 (Cana-
da) to install 2” or 3” PVC exhaust piping through the oor
joists and into the the crawl space. See FIGURE 21. This
kit can also be used as a supplemental drain for installa-
tions with condensate run back in the vent pipe (ie. long
horizontal runs, unconditioned spaces, etc.).
Venting In A Crawl Space
Basement Floor
KIT 51W18
(USA)
KIT 15Z70
(CANADA)
FIGURE 21
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