59SP6A: Installation, Start-up, Operating, Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
47
Maximum Allowable Exposed Vent Lengths in Unconditioned Space Insulation Table - Ft. / M (Continued)
Maximum Allowable Exposed Vent Length in Unconditioned Space (Metric)
* Pipe length (ft) specified for maximum pipe lengths located in unconditioned spaces. Pipes located in unconditioned space cannot exceed total allowable pipe length calculated from
.
† Insulation thickness based on R value of 3.5 per in.
Winter
Design
Temp
°F
Unit Size
80,000 BTUH
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Pipe Dia.
in.
1 ½
2
2 ½
3
4
1 ½
2
2 ½
3
4
1 ½
2
2 ½
3
4
20
15
40
40
35
30
15
50
90
75
65
15
50
70
70
70
0
15
20
15
10
5
15
50
45
35
30
15
50
50
40
35
-20
15
10
5
15
35
30
20
15
15
40
30
25
15
-40
10
5
15
25
20
15
5
15
30
25
20
10
Winter
Design
Temp
°F
Unit Size
100,000 BTUH
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Pipe Dia.
in.
2
2 ½
3
4
2
2 ½
3
4
2
2 ½
3
4
20
20
50
40
35
20
80
95
80
20
80
105
90
0
20
20
15
10
20
55
45
35
20
65
55
45
-20
15
10
5
20
35
30
20
20
45
35
25
-40
10
5
20
25
20
10
20
30
25
15
Winter
Design
Temp
°F
Unit Size
120,000 BTUH
140,000 BTUH
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Pipe Dia.
in.
2 ½
3
4
2 ½
3
4
2 ½
3
4
2 ½
3
4
2 ½
3
4
2 ½
3
4
20
10
50
40
10
75
95
10
75
105
5
55
50
5
65
105
5
65
125
0
10
20
15
10
55
45
10
65
50
5
25
15
5
65
50
5
65
60
-20
10
10
10
35
25
10
45
30
5
10
5
5
45
30
5
50
40
-40
10
5
10
25
15
10
30
20
5
5
5
30
20
5
35
25
Winter
Design
Temp
°C
Unit Size
40,000* BTUH
60,000 BTUH
Uninsulated
3/8-in.
Insulation
1/2-in.
Insulation
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Pipe Dia.
mm
38
51
64 38
51
64 38
51
64
38
51
64 76
38
51
64 76
38 51
64 76
-7
6.1 6.1 6.1 6.1 15.2 13.7 6.1 18.3 15.2
6.1 9.1 9.1 7.6 6.1 22.9 19.8 18.3 6.1 25.9 22.9 19.8
-18
3.0 1.5 1.5 6.1 7.6 6.1 6.1 9.1 7.6 4.6 4.6 3.0 3.0 6.1 12.2 9.1 7.6 6.1 13.7 12.2 9.1
-29
1.5
6.1 4.6 3.0 6.1 6.1 4.6 3.0 1.5
6.1 7.6 6.1 4.6 6.1 9.1 7.6 6.1
-40
4.6 3.0 1.5 4.6 4.6 3.0 1.5
6.1 4.6 4.6 3.0 6.1 6.1 4.6 3.0
Winter
Design
Temp
°C
Unit Size
80,000 BTUH
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Pipe Dia.
mm
38
51
64
76
102
38
51
64
76
102
38
51
64
76
102
-7
4.6
12.2
12.2
10.7
9.1
4.6
15.2
27.4
22.9
19.8
4.6
15.2
21.3
21.3
21.3
-18
4.6
6.1
4.6
3.0
1.5
4.6
15.2
13.7
10.7
9.1
4.6
15.2
15.2
12.2
10.7
-29
4.6
3.0
1.5
4.6
10.7
9.1
6.1
4.6
4.6
12.2
9.1
7.6
4.6
-40
3.0
1.5
4.6
7.6
6.1
4.6
1.5
4.6
9.1
7.6
6.1
3.0
Winter
Design
Temp
°C
Unit Size
100,000 BTUH
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Pipe Dia.
mm
51
64
76
102
51
64
76
102
51
64
76
102
-7
6.1
15.2
12.2
10.7
6.1
24.4
28.9
24.4
6.1
24.4
32.0
27.4
-18
6.1
6.1
4.6
3.0
6.1
16.8
13.7
10.7
6.1
19.8
16.7
13.7
-29
4.6
3.0
1.5
6.1
10.7
9.1
6.1
6.1
13.7
10.7
7.6
-40
3.0
1.5
6.1
7.6
6.1
3.0
6.1
9.1
7.6
4.6
Winter
Design
Temp
°C
Unit Size
120,000 BTUH
140,000 BTUH
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Pipe Dia.
mm
64
76
102
64
76
102
64
76
102
64
76
102
64
76
102
64
76
102
-7
3.0
15.2 12.2
3.0
22.9 28.9
3.0
22.9 32.0
1.5
16.7 15.2
1.5
19.8 32.0
1.5
19.8 38.1
-18
3.0
6.1
4.6
3.0
16.8 13.7
3.0
19.8 15.2 1.5
7.6
4.6
1.5
19.8 15.2
1.5
19.8 18.3
-29
3.0
3.0
3.0
10.7
7.6
3.0
13.7
9.1 1.5
3.0
1.5
1.5
13.7
9.1
1.5
15.2 12.2
-40
3.0
1.5
3.0
7.6
4.6
3.0
9.1
6.1 1.5
1.5
1.5
9.1
6.1
1.5
35
7.6
