Goodman Mfg MVM96 사용자 설명서
18
In a basement installation, the vent/flue pipe can be run between
joist spaces. If the vent pipe must go below a joist and then up into
the last joist space to penetrate the header, two 45° elbows should
be used to reach the header rather than two 90° elbows.
joist spaces. If the vent pipe must go below a joist and then up into
the last joist space to penetrate the header, two 45° elbows should
be used to reach the header rather than two 90° elbows.
12 " Min To Roof
Or Highest Anticipated
Snow Level
Vertical Termination (Single Pipe)
_____________________________________
TEE (OPTIONAL)
12 " Min To Roof
Or Highest Anticipated
Snow Level
12" MIN. TO ROOF
OR HIGHEST ANTICIPATED
SNOW LEVEL
90º or 45°
MEDIUM RADIUS ELBOWS
NOTE: Care should be taken to prevent condensate
accumulations on roofing material.
accumulations on roofing material.
Alternate Vertical Termination (Single Pipe)
_____________________________________
12" TO GROUND OR
HIGHEST ANTICIPATED
SNOW LEVEL
HIGHEST ANTICIPATED
SNOW LEVEL
MIN.
12"
FROM
WALL
WALL
Horizontal Termination (Single Pipe)
_____________________________________
VENT/FLUE TEE (
or
45° ELBOW
TURNED DOWN or
90° ELBOW TURNED
DOWN
OPTIONAL)
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
12" MIN.
Horizontal Termination (Single Pipe)
Above Highest Anticipated Snow Level
D
IRECT
V
ENT
(D
UAL
P
IPE
) P
IPING
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.
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 Vent/Flue and Combustion Air Pipe - Termination Loca-
tions or Concentric Vent Termination for specific details on termi-
nation construction. For details concerning connection of pipes to
the furnace, refer to the Vent/Flue Pipe and Combustion Pipe -
Standard Furnace Connections or Alternate Furnace Connections.
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 Vent/Flue and Combustion Air Pipe - Termination Loca-
tions or Concentric Vent Termination for specific details on termi-
nation construction. For details concerning connection of pipes to
the furnace, refer to the Vent/Flue Pipe and Combustion Pipe -
Standard Furnace Connections or Alternate Furnace Connections.
V
ENT
/F
LUE
& C
OMBUSTION
A
IR
P
IPE
L
ENGTHS
&D
IAMETERS
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. If there is a
difference between the two 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.
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. If there is a
difference between the two 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 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.
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.
V
ENT
/F
LUE
AND
C
OMBUSTION
A
IR
P
IPE
T
ERMINATIONS
The vent/flue and combustion air pipes may terminate vertically, as
through a roof, or horizontally, as through an outside wall.
through a roof, or horizontally, as through an outside wall.
1
2
3
4
5
6
7
8
2 or 2 1/2
49
46
43
40
37
34
31
28
3
71
68
65
62
59
56
53
50
2 or 2 1/2
36
33
30
27
24
21
18
15
3
57
54
51
48
45
42
39
36
Standard
3
71
68
65
62
59
56
53
50
Alternate
3
57
54
51
48
45
42
39
36
Standard
3
49
46
43
40
37
34
31
28
Alternate
3
35
32
29
26
23
20
17
14
*Maximum allowable limits listed are individual lengths for inlet & flue and NOT a combination.
Number of Elbows
(1)(2)(3)(5)
Direct Vent (Dual Pipe) Maximum Allowable Length*
of Vent/Flue & Combustion Air Intake Pipe
(ft)
UPFLOW
Pipe
(4)
(inch)
Termination
Style
Unit Input
(Btu)
Standard
Alternate
60,000
80,000
100,000
115,000
115,000