AERCO AM Series Boiler User Manual - Manual (Page 71)

AM Series Boilers and Water Heaters
CHAPTER 3 – INSTALLATION
OMM-0100_0B AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 71 of 156
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3.16.5.11 Installing Vent and Air Piping into Sidewall
Install vent and air piping through sidewalls as follows:
Installing Vent and Air Piping into Sidewall
1. Install air pipe through wall:
a) Cut a hole for the air pipe. Size the air pipe hole as close as desired to the air pipe
outside diameter.
2. Install vent pipe through wall:
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;
b) Insert a galvanized metal thimble in the vent pipe hole as shown in Figure 3-33.
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 floors or walls.
5. Seal exterior openings thoroughly with exterior caulk.
3.16.5.12 Sidewall Termination and Fittings
Ensure the following when installing through sidewalls:
1. The air termination coupling must be oriented at least 12 inches above grade or snow line
as shown in Figure 3-31.
2. Maintain the required dimensions of the finished termination piping as shown in Figure 3-
31.
3. Do not extend exposed vent pipe outside of the building more than what is shown in
Figures Figure 3-31. Condensate could freeze and block vent pipe.
3.16.5.13 Multiple Vent and Air Terminations
When installing multiple air and vent terminations, ensure the following:
1. Terminate each vent/air connection as shown in Figure 3-32.
2. All vent pipes and air inlets must terminate at the same height.
3. Place wall penetrations to obtain minimum clearance of 12 inches between edge of air
inlet and adjacent vent outlet, as shown in Figure 3-32 for U.S. installations. For
Canadian installations, provide clearances required by CSA B149.1 Installation Code.
4. The air inlet is part of a direct vent connection. It is not classified as a forced air intake
with regard to spacing from adjacent appliance vents.