Sidewall Direct Venting Vent/Air Termination - Sidewall; Prepare Wall Penetrations - Lochinvar FTxl 400 Installation & Operation Manual

4
Sidewall direct venting
Vent/air termination – sidewall
Figure 4-4A Clearance to Forced Air Inlets w/Field
Supplied Fittings
Figure 4-4B Clearance to Forced Air Inlets

Prepare wall penetrations

1. 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.
2. 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:
• 5½ inch hole (140 mm) hole for 4 inch (102 mm)
vent pipe
• 7½ inch hole (191 mm) hole for 6 inch (152 mm)
vent pipe
b. Insert a galvanized metal thimble in the vent pipe
hole as shown in FIG. 4-5A.
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Installation & Operation Manual
3. Use a sidewall termination plate as a template for correct
location of hole centers.
4. Follow all local codes for isolation of vent pipe when passing
through fl oors or walls.
5. Seal exterior openings thoroughly with exterior caulk.
Figure 4-5A A Typical Sidewall Termination Assembly - Models
400 - 850 PVC/CPVC/ Polypropylene or Stainless Steel
Prepare wall penetrations
Supplied Option)
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:
• 5½ inch hole (140 mm) hole for 4 inch (102 mm)
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 3G on page 22 into the vent
plate. Slide the sidewall retaining bracket down the
sidewall adapters fl ush to the vent plate (FIG. 4-4A).
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 3E on page 21 to seal the
vent pipe.
(Factory