Sidewall Direct Venting - Smith XWH 150 Instruction Manual

SIDEWALL DIRECT VENTING

Figure 28. Clearance to Forced Air Inlets
Figure 29. Alternate Clearance to Forced Air Inlets w/ Field
Supplied Fittings
PREPARE WALL PENETRATIONS
1. Use the factory supplied wall plate as a template to locate the
vent and air intake holes and mounting holes.
Air pipe penetration:
a. Cut a hole for the air pipe. Size the air pipe hole as close
as desired to the air pipe outside diameter.
Vent pipe penetration:
a. Cut a hole for the vent pipe. For either combustible or
noncombustible construction, size the vent pipe hole with
at least a 1/2 inch clearance around the vent pipe outer
diameter:
• 4½ inch hole for 3 inch vent pipe.
• 5½ inch hole for 4 inch vent pipe.
• 7½ inch hole (191 mm) hole for 6 inch (152 mm) vent
pipe
Drill 3/16" diameter holes for inserting the plastic anchors into
the wall.
2. For Polypropylene Only: Install the vent and air intake
sidewall adapters from Table 13 on Page 22 into the vent
plate. Slide the sidewall retaining bracket down the sidewall
adapters flush to the vent plate (Figure 29).
3. For PVC/CPVC Only: Install the vent and air intake piping
through the wall into the vent plate openings. Use RTV
silicone sealant to seal the air pipe. Use the cement/primer
listed in Table 11 on Page 20 to seal the vent pipe.
4. Mount and secure the vent plate to the wall using stainless
steel screws. Seal around the plate to the wall assuring no
air gaps.
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 Figure 30).
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 30. Sidewall Termination Assembly
Table 18. Sidewall Vent Centerline Dimensions
MODEL AIR
150 - 200 3"
285 - 600 4"
700 - 800 4"
26
VENT CENTERLINE
WIDTH
3" 5 5/8"
4" 5 5/8"
6" 7 3/4"