
MCA
Pro
45/65/90/115
MCA-Pro ISM Rv.4.1 2/2017
50
i
• Horizontal sections of the venting must
slope downward towards the boiler ½" per
linear foot (42 mm/m) and adequate vent
support must be provided.
• Flue gas vertical termination shall be a
tapered (finishing cone) with a bird/rodent
screen.
• Combustion air vertical termination shall
be equipped with a offset (gooseneck)
configuration as shown with a bird/rodent
screen.
• The maximum length L as seen in the
drawing can be found in the table.
4. Installation
Vertical vented with sealed combustion air (coaxial)
MCA
Pro
Vent ø
Max.
length
Number of elbows 90˚ and equivalent feet/meters
2
3
4
5
6
7
8
in/mm
ft
m
ft
m
ft
m
ft
m
ft
m
ft
m
ft
m
ft
m
35
3/5
80/125
98
30
84
26
78
24
72
22
65
20
58
18
52
16
45
14
45
3/5
80/125
98
30
84
26
78
24
72
22
65
20
58
18
52
16
45
14
65
3/5
80/125
69
21
56
17
49
15
43
13
36
11
29
9
23
7
16
5
65
4/6
100/150
98
30
85
26
78
24
72
22
65
20
58
18
52
16
45
14
90
4/6
100/150
98
30
85
26
78
24
72
22
65
20
58
18
52
16
45
14
115
4/6
100/150
98
30
85
26
78
24
72
22
65
20
58
18
52
16
45
14
Vertical vented with sealed combustion air (coaxial)
MCA
Pro
Vent ø
Max. length
Number of elbows 45˚ and equivalent feet/meters
2
3
4
5
6
7
8
in/mm
ft
m
ft
m
ft
m
ft
m
ft
m
ft
m
ft
m
ft
m
35
3/5
80/125
98
30
91
28
88
27
85
26
82
25
78
24
75
23
72
22
45
3/5
80/125
98
30
91
28
88
27
85
26
82
25
78
24
75
23
72
22
65
3/5
80/125
69
21
62
19
59
18
56
17
53
16
49
15
46
14
43
13
65
4/6
100/150
98
30
91
28
88
27
85
26
82
25
78
24
75
23
72
22
90
4/6
100/150
98
30
91
28
88
27
85
26
82
25
78
24
75
23
72
22
115
4/6
100/150
98
30
91
28
88
27
85
26
82
25
78
24
75
23
72
22
1
2
L
Coaxial
Type 4: Seal combustion system applications
Combustion air supply
Flue gas outlet
Combustion
air supply
Flue gas
outlet
L = Maximum length
*
*
* Additional concentric adaptor to be used from M & G (Dura Vent)
Содержание MCA Pro 115
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