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AM Series Boiler & Water Heater User Manual
CHAPTER 6: INSTALL – VENT & COMBUSTION AIR PIPING
6.5.20 Installing Multiple Vent and Air Vertical Terminations
Install multiple vent and air terminations in a roof as follows:
Installing Vertical Multiple Vent and Air Roof Terminations
1.
When terminating multiple units, terminate each vent/air connection as shown in Figure 6-
12.
2.
Place roof penetrations to obtain minimum clearance of 12 inches between edge of air
intake elbow and adjacent vent pipe of another appliance for U.S. installations
3.
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.
Figure 6-12: Installing Multiple Vent and Air Vertical Terminations – Two
OMM-0100_E • GF-146 • 11/15/2019
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