Amana CEC96 Series Manual page 16

V /F P L
ENT LUE IPE ENGTHS AND
For installations at or above 7,000 feet altitude, use 3" vent-
ing. Refer to the following table for applicable length, elbows,
and pipe diameter for construction of the vent/flue pipe system
of a non-direct vent installation. In addition to the vent/flue
pipe, a single 90° elbow should be secured to the combustion air
intake to prevent inadvertent blockage. The tee used in the
vent/flue termination must be included when determining the
number of elbows in the piping system.
COMBUSTION AIR INTAKE
(OPTIONAL)
*Not required for
single pipe installation
12" MIN TO ROOF OR HIGHEST
ANTICIPATED SNOW LEVEL
12" MIN.
HIGHEST ANTICIPATED
Horizontal Termination (Single Pipe)
Above Highest Anticipated Snow Level
D
IAMETERS
TEE (OPTIONAL)
12" MIN
HEIGHT DIFFERENCE
BETWEEN
INTAKE AND VENT
Figure 12
ELBOWS
STRAIGHT
Figure 13
VENT/FLUE TEE ( OPTIONAL)
or
45° ELBOW
TURNED DOWN or
90° ELBOW TURNED
DOWN
12" MIN. ABOVE
SNOW LEVEL
Figure 14
V /F P T
ENT LUE IPE ERMINATIONS
NOTE: If either a 90 degree or 45 degree elbow is used for
termination, it must be pointed downward.
The vent/flue pipe may terminate vertically, as through a roof,
or horizontally, as through an outside wall.
Vertical vent/flue pipe terminations should be as shown in the
following figure. Refer to Vent/Flue Pipe and Combustion Air
Pipe - Termination Locations for details concerning location re-
strictions. The penetration of the vent through the roof must be
sealed tight with proper flashing such as is used with a plastic
plumbing vent.
Horizontal vent/flue pipe terminations should be as shown in the
following figure. Refer to Vent/Flue Pipe and Combustion Air
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 length of pipe
connecting the two couplings. The length of pipe 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.
NOTE: Terminate both pipes in the same pressure zone
(same side of roof, no major obstacles between pipes,
etc.).
D V (D P
IRECT ENT UAL IPE
Direct vent installations require both a combustion air intake
and a vent/flue pipe. The pipes may be run horizontally and exit
through the side of the building or run vertically and exit through
the roof of the building. The pipes may be run through an exist-
ing 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
a vent/flue pipe terminations must be in the same atmospheric
pressure zone. Refer to Vent/Flue and Combustion Air Pipe -
Termination Locations or Concentric Vent Termination for spe-
cific details on termination construction. For details concerning
connection of pipes to the furnace, refer to the Vent/Flue Pipe
and Combustion Pipe - Standard Furnace Connections or Alter-
nate Furnace Connections.
The number of elbows tabulated represents the number of el-
bows and/or tees in each (Vent/Flue & Combustion Air Intake)
pipe. Elbows and/or tees used in the terminations must be in-
cluded when determining the number of elbows in the piping
systems.
If the combustion air intake pipe is to be installed above a fin-
ished ceiling or other area where dripping of condensate will be
objectionable, insulation of the combustion air pipe may be re-
quired. Use 1/2" thick closed cell foam insulation such as
Armaflex™ or Insultube™ where required.
16
) P
IPING