47
MCA
Pro
45/65/90/115
MCA-Pro ISM Rv.4.1 2/2017
4. Installation
Type 3: Direct vent (side wall) applications
A horizontal vent system with a 2 pipe system. Room
supplied combustion air is not allowed
Combustion air supply
Flue gas outlet
Sidewall vented with sealed combustion air (two pipe system) (L1 + L2 combined length)
MCA
Pro
Vent ø
Max. length
Number of elbows 90˚ and equivalent feet/meters
1
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
ft
m
35
3
80
131
40
118
36
105
32
92
28
79
24
66
20
52
16
39
12
26
8
45
3
80
131
40
118
36
105
32
92
28
79
24
66
20
52
16
39
12
26
8
65
3
80
49
15
36
11
23
7
10
3
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
65
4
100
131
40
115
35
99
30
83
25
67
20
51
16
34
11
18
6
2
1
90
4
100
118
36
102
31
86
26
70
21
54
16
38
12
21
7
5
2
N/A
N/A
115
4
100
79
24
63
19
47
14
31
9
15
4
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Sidewall vented with sealed combustion air (two pipe system)
MCA
Pro
Vent ø
Max. length
Number of elbows 45˚ and equivalent feet/meters
1
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
ft
m
35
3
80
131
40
127
39
123
38
119
36
115
35
112
34
108
33
104
32
100
30
45
3
80
131
40
127
39
123
38
119
36
115
35
112
34
108
33
104
32
100
30
65
3
80
49
15
45
14
41
13
37
11
33
10
30
9.0
26
8
22
7
18
5
65
4
100
131
40
127
39
122
37
118
36
114
35
110
34
105
32
101
31
97
30
90
4
100
118
36
114
35
109
33
105
32
101
31
97
30
92
28
88
27
84
26
115
4
100
79
24
75
23
70
21
66
20
62
19
58
18
53
16
49
15
45
14
Combustion
air supply
Flue gas
outlet
L1 Plus L2 = Maximum length
*
*
* with a 4" to 3" adaptor
Содержание MCA Pro 115
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