Adams Condensing Oil-Fired Furnace - Manual (Page 12)

Installations require both a vent/flue pipe and a
combustion air intake pipe. Refer to the
appropriate section for details concerning piping
size, length, number of elbows, furnace
connections, and terminations.
DIRECT VENT fPUAL P\PE\ PIPING -
BECKETT NX
NON-DIRECT VENT fPUAL PIPE^
INTERburner
Installations require both a combustion air intake
and a ventrue pipe. The pipes may be run
horizontally and exit through the ^de of the
building or run vertically and exit through the
roof of the building.
The pipes may be run through an existing
unused chimney; however, they must extend a
minimum of 12 inches above the top of the
chimney.
The space between the pipes and the chimney
must be closed with a weather tight, corrosion
resistant flashing. Both the combustion air
intake and vent/flue pipe terminations must be in
the same atmospheric pressure zone.
Refer to Section VI, Vent/flue and Combustion
air Pipe - Termination Locations or Concentric
Vent Termination for specific details on
termination construction.
For details concerning connection of pipes to the
furnace, refer to the Section VI, Vent/Flue Pipe
and Combustion Pipe - Standard Furnace
connections or alternate furnace connections.
Horizontal terminations should be as shown in
the following figure. Refer to Section Vi,
Vent/Flue Pipe and Combustion Pipe -
Termination Location for location restrictions,
A 3 Î4 inch diameter hole is required for 3”
diameter pipe. To secure the pipe passing
through the wall and prohibit damage to piping
connections, a coupling should be installed on
either side of the wall and solvent cemented to a
pipe connecting the two couplings.
The pipe length should be the wall thickness
plus the depth of the socket fittings to be
installed on the inside and outside of the wall.
The wall penetration should be sealed with
silicone caulking material.
ROOF VENT SYSTEM
The vent termination of vent pipe run vertically
through a roof must terminate at least 12 inches
above the roof line (or the anticipated snow
level) and be at least 12 inches from any vertical
wall (including any anticipated snow build up).
Standard horizontal Terminations (Dual Pipe)
Vertical Terminations (Dual Pipe)
Alternate Horizontal Vent Termination (Dual
Pipe)
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