Download Print this page

Amana AMV9 Installation Instructions Manual: Direct Vent (dual Pipe ) Piping

Two-stage variable speed gas-fired warm air furnace.
Hide thumbs

Advertisement

12" MIN.
TO ROOF OR
HIGHEST
ANTICIPATED
SNOW LEVEL
Alternate Vertical Termination (Single Pipe)
WALL
INSIDE
ELBOW OR
COUPLING
Horizontal Termination (Single Pipe)
12" MIN.
Horizontal Termination (Single Pipe)
Above Highest Anticipated Snow Level
D
V
(D
P
IRECT
ENT
UAL
IPE
The inlet air screens provided in the installation instruction packet
are available for the installer to use in the inlet of the combustion
air pipe to prevent animals from building nests in the combustion
air pipe. Installation of screens, while strongly recommended, is
not required and will not affect performance of the unit.
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 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 resis-
tant flashing. Both the combustion air intake and a vent/flue pipe
terminations must be in the same atmospheric pressure zone.
Refer to Section IX, Vent/Flue and Combustion Air Pipe - Termina-
tion Locations or Concentric Vent Termination for specific details
on termination construction. For details concerning connection of
pipes to the furnace, refer to the Section IX, Vent/Flue Pipe and
Combustion Pipe - Standard Furnace Connections or Alternate
Furnace Connections.
V
/F
C
ENT
LUE AND
OMBUSTION
Refer to the following table for applicable length, elbows, and pipe
diameter for construction of the vent/flue and combustion air intake
pipe systems of a direct vent (dual pipe) installation. The number
of elbows tabulated represents the number of elbows and/or tees
in each (Vent/Flue & Combustion Air Intake) pipe. Elbows and/or
tees used in the terminations must be included when determining
the number of elbows in the piping systems.
90º
MEDIUM RADIUS
ELBOWS
OUTSIDE
TEE
or
90°ELBOW
TURNED
DOWN
COUPLING
MIN.
12"
FROM
12"
WALL
TO GROUND OR
HIGHEST ANTICIPATED
SNOW LEVEL
VENT/FLUE TEE
or
90° ELBOW TURNED
DOWN
) P
IPING
A
P
L
D
IR
IPE
ENGTHS AND
If the combustion air intake pipe is to be installed above a finished
ceiling or other area where dripping of condensate will be objec-
tionable, insulation of the combustion air pipe may be required.
Use 1/2" thick closed cell foam insulation such as Armaflex™ or
Insultube™ where required.
Direct Vent (Dual Pipe) Maximum Allow able Length
of Vent/Flue & Combustion Air Intake Pipe (ft)
Unit Input
Termination
(Btu)
Standard
45,000
Alternate
Standard
70,000
Alternate
Standard
90,000
Alternate
Standard
115,000
Alternate
Direct Vent (Dual Pipe) Maximum Allow able Length
of Vent/Flue & Combustion Air Intake Pipe (ft)
Unit Input
Termination
(Btu)
Standard
70,000
Alternate
Standard
90,000
Alternate
(1)
Elbows and/or Tees used in the terminations must be included when
determining the number of elbows in the piping system.
(2)
Number of elbows tabulated are for each (Vent/Flue & Combustion air
intake) pipe.
(3)
Minimum length of each Vent/Flue & Combustion Air Intake pipe is five feet
and one elbow/tee.
(4)
3" diameter pipe can be used in place of 2" diameter pipe.
V
/F
ENT
LUE AND
The vent/flue and combustion air pipes may terminate vertically, as
through a roof, or horizontally, as through an outside wall.
Vertical pipe terminations should be as shown in the following
figure. Refer to Section IX, Vent/Flue Pipe and Combustion Pipe -
Termination Locations for details concerning location restrictions.
The penetrations through the roof must be sealed tight with proper
flashing such as is used with a plastic plumbing vent.
COMBUSTION
AIR INTAKE
12" MIN.
IAMETERS
12" MIN.
TO ROOF OR
HIGHEST
ANTICIPATED
SNOW LEVEL
17
UPFLOW
(4)
Number of Elbow s
Pipe
Style
(inch)
1
2
3
2
71
68
65
2
58
55
52
2
49
46
43
3
71
68
65
2
36
33
30
3
57
54
51
3
71
68
65
3
57
54
51
3
49
46
43
3
35
32
29
COUNTERFLOW
(4)
Number of Elbow s
Pipe
Style
(inch)
1
2
3
2
49
46
43
3
71
68
65
2
36
33
30
3
57
54
51
2
61
58
55
3
71
68
65
2
48
45
42
3
57
54
51
C
A
P
T
OMBUSTION
IR
IPE
ERMINATIONS
TEE
90º
MEDIUM RADIUS
ELBOWS
SCREEN
24" MAX.
3" MIN.
Vertical Terminations (Dual Pipe)
(1)(2)(3)
4
5
6
7
8
62
59
56
53
50
49
46
43
40
37
40
37
34
31
28
62
59
56
53
50
27
24
21
18
15
48
45
42
39
36
62
59
56
53
50
48
45
42
39
36
40
37
34
31
28
26
23
20
17
14
(1)(2)(3)
4
5
6
7
8
40
37
34
31
28
62
59
56
53
50
27
24
21
18
15
48
45
42
39
36
52
49
46
43
40
62
59
56
53
50
39
36
33
30
27
48
45
42
39
36
VENT/FLUE

Advertisement

Troubleshooting

   Also See for Amana AMV9

   Related Manuals for Amana AMV9

This manual also for:

Acv9

Comments to this Manuals

Symbols: 0
Latest comments: