Prepare Wall Penetrations - Lochinvar 151 Installation & Operation Manual

4
Sidewall direct venting
Figure 4-4A Clearance to Forced Air Inlets
VENT / AIR
TERMINATION
7' MIN. ABOVE ANY
PUBLIC WALKWAY
Figure 4-4B Alternate Clearance to Forced Air Inlets w/
Field Supplied Fittings
7' MIN. ABOVE ANY
PUBLIC WALKWAY

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.
26
2.
IF LESS
THAN 10'
3.
36"
MIN.
FORCED AIR
INLET
4.
5.
6.
7. Seal all wall cavities.
8. PVC/CPVC terminations are designed to accommodate any
IF LESS
THAN 10'
9. Stainless steel terminations are designed to penetrate walls
36"
MIN.
Figure 4-5A Sidewall Termination Assembly
FORCED AIR
INLET
BIRD
SCREEN
(TYPICAL)
VENT PIPING
WALL PLATE
Table 4B Sidewall Vent Centerline Dimensions
Model
151 - 200
286 - 601
701 - 801
Installation & Operation Manual
For Polypropylene Only: Install the vent and air intake
sidewall adapters from Table 3F on page 20 into the vent
plate. Slide the sidewall retaining bracket down the
sidewall adapters flush to the vent plate (FIG. 4-4B).
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 3D on page 19 to seal the
vent pipe.
Mount and secure the vent plate to the wall using stainless
steel screws. Seal around the plate to the wall assuring no
air gaps.
Seal all gaps between the pipes and wall. Seal around the
plate to the wall assuring no air gaps.
Assemble the vent cap to the vent plate (see FIG. 4-5A).
Insert the stainless steel screws into the vent cap screw hole
openings and securely attach the vent cap to the vent plate.
wall thickness of standard constructions per the directions
found in this manual.
with a thickness up to 9.25 inches of standard construction.
AIR PIPING
GALVANIZED
THIMBLE
Air Vent
3" 3"
4" 4"
4" 6"
VENT AIR
CENTERLINE WIDTH
VENT PLATE
VENT CAP
Centerline Width
5 5/8"
5 5/8"
7 3/4"