Low Profile Termination Installation - A.O. Smith 300 Series Instruction Manual

Cement heater combustion-air and vent pipes to concentric vent
5.
termination assembly. See Figure 36 (page 33) for proper pipe
orientation and attachment.
Operate heater through one heat cycle to ensure combustion-
6.
air and vent pipes are properly connected to concentric vent
termination connections.
Figure 36. Sidewall Concentric Pipe Orientation and Attachment
MULTI-CONCENTRIC VENT TERMINATIONS
When two or more water heaters are direct vented with concentric
vent terminations near each other, each water heater must be
individually vented. NEVER common vent this water heater. When
two or more water heaters are direct vented using concentric vent
terminations, the water heaters may be vented as shown in Figure
37 and Figure 38.
Figure 37. Concentric Vent Terminations For Horizontal Direct
Figure 38. Concentric Vent Terminations For Vertical Direct Venting
Through A Roof
Venting

LOW PROFILE TERMINATION INSTALLATION

This water heater is certified for sidewall direct venting with IPEX
System 636 Low Profile Vent Kit. Follow instructions below for
proper installations.
All termination kits must be located and installed in accordance
with local codes or the current edition of the Natural Gas and Propane
Installation Code (CSA B149.1).
Once the proper location has been determined, cut 2 holes in
1.
the wall large enough to accommodate the pipe. Pipe diameters
and distance between hole centers can be found in Table 8 (page
34).
Slide both the intake and exhaust pipes through the holes. Solvent
2.
cement both pipes to the base of the vent termination kit, follow
the solvent cementing procedures outlined in the IPEX System 636
Installation Guide, which is available on the web www.ipexinc.com.
To fasten the Base to the wall, use the supplied screws and
3.
anchors. A 3/16" (5 mm) hole, 1-3/16" (30 mm) deep, will need
to be drilled for the anchors. Locate the anchor hole using the
base as a template.
Screw the Cap to the Base using the supplied screws.
4.
Once the vent termination and pipes are secured, the wall
5.
penetrations will need to be sealed from the interior using a
PVC-compatible sealant material.
All vent pipes and air inlets must terminate at the same height to
6.
avoid possibility of severe personal injury, death, or substantial
property damage.
Operate heater through one heat cycle to ensure combustion-
7.
air and vent pipes are properly connected to concentric vent
termination connections.
Air Inlet
Piping
Vent (Exhaust)
Piping
Figure 39. Low Profile Air Inlet/Exhaust Termination
33
Vent Base
Vent Cap