Vent/Intake Terminations For Installation Of Multiple Direct Vent Furnaces - Amana MVM97 Installation Instructions Manual

12" MIN.
Horizontal Termination (Single Pipe)
Above Highest Anticipated Snow Level
Vent/Flue & Combustion Air Pipe Lengths &
Diameters
If there is a difference between the vent and combustion
air pipes, count the pipe with the most fittings. Elbows
and/or tees used in the terminations must be included
when determining the number of elbows in the piping
systems.
If the combustion air intake pipe is to be installed above
a finished ceiling or other area where dripping of conden-
sate will be objectionable, insulation of the combustion
air pipe may be required. Use 1/2" thick closed cell
foam insulation such as Armaflex™ or Insultube™ where
required.
Standard Horizontal Terminations (Dual Pipe)
Vent & Combustion Air Intake Measurements
for Standard Horizontal Terminations (Dual
Pipe)
Center to center = 10" min / 24" max.
Vertical separation: 0" - 24"
Vent termination from wall = 8" min / 12" max.
Combustion air intake from wall = 6" max.
Vent and intake clearance to ground
or anticipated snow level = 12" min.
VENT/FLUE TEE ( OPTIONAL)
or
45° ELBOW
TURNED DOWN or
90° ELBOW TURNED
DOWN
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
Figure 15
Figure 16
Alternate Horizontal Vent Termination (Dual Pipe)
Combustion Air Intake may also be snorkeled to obtain
12" minground clearance.
Alternate Vent Termination Above Anticipated Snow
Vent/Intake Terminations For Installation of
Multiple Direct Vent Furnaces
If more than one direct vent furnace is to be installed
vertically through a common roof top, maintain the same
minimum clearances between the exhaust vent and air
intake terminations of adjacent units as with the exhaust
vent and air intake terminations of a single unit.
If more than one direct vent furnace is to be installed
horizontally through a common side wall, maintain the
Figure 17
Level
(Dual Pipe)
Figure 18