Lochinvar Shield SNR150-100 - Manual (Page 24)

24
3
Sidewall direct venting
VENT PIPING
GALVANIZED
THIMBLE
VENT CAP
AIR PIPING
WALL PLATE
VENT PLATE
Figure 3-4A Sidewall Termination Assembly
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
Drill 3/16" diameter holes for inserting the plastic
anchors into the wall.
2. Install the vent and air intake piping through the wall
into the vent plate openings. Seal all gaps between the
pipes and wall. Use RTV silicone sealant to seal the air
pipe. Use the glue (cement/primer) listed in Table 2A on
page 18 to seal the vent pipe.
3. Mount and secure the vent plate to the wall using
stainless steel screws. Seal around the plate to the wall
assuring no air gaps.
4. Assemble the vent cap to the vent plate (see FIG. 3-4A).
Insert the stainless steel screws into the vent cap screw
hole openings and securely attach the vent cap to the vent
plate.
5. Seal all wall cavities.
Installation & Service Manual TM
FORCED AIR
INLET
VENT / AIR
TERMINATION
7' MIN. ABOVE ANY
PUBLIC WALKWAY
IF LESS
THAN 10’
36"
MIN.
Figure 3-3A Clearance to Forced Air Inlets
IF LESS
THAN 10’
36”
MIN.
FORCED AIR
INLET
BIRD
SCREEN
(TYPICAL)
7’ MIN. ABOVE ANY
PUBLIC WALKWAY
Figure 3-3B Alternate Clearance to Forced Air Inlets w/
Field Supplied Fittings
BIRD
SCREEN
(TYPICAL)
12”
MIN.
12”
MIN.
12”
MIN.
Figure 3-2B Alternate Clearance to Gravity Air Inlets w/
Field Supplied Fittings