High-Efficiency Commercial Gas Series - Service Manual
Technical Literature Department
12
Ashland City, Tennessee © 2008
Servicing should only be performed by a Qualified Service Agent
VENT / INTAKE AIR TERMINATIONS
WHEN LOCATING THE VENT AND INTAKE AIR TERMINATIONS ON A SIDEWALL, THE
FOLLOWING SPECIFICATIONS PERTAINING TO LOCATION AND CLEARANCES MUST BE
FOLLOWED.
1. The intake vent terminal and the exhaust vent terminal must terminate on
the same exterior wall and must be located at a minimum of 24" (61cm)
from the vertical centerline of the exhaust vent terminal (see Figure 9).
In colder climates increasing the 24" (61cm) minimum will reduce
possibility of frost over from side winds blowing exhaust vapors to the
air intake of the direct vent.
2. The horizontal centerline of the intake vent terminal
may not
be located
lower than the horizontal centerline of the exhaust vent terminal.
