Carrier 59SC6A - Page 44

59SC6A: Installation, Start-up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
44
Maximum Allowable Exposed Vent Length in Unconditioned Space (Metric)
Winter
Design
Temp °F
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. in.
1 ½ 2 2 ½ 1 ½ 2 2 ½ 1 ½ 2 2 ½ 1 ½ 2 2 ½ 3 1 ½ 2 2 ½ 3 1 ½ 2 2 ½ 3
20 20 20 20 20 50 45 20 60 50
20 30 30 25 20 75 65 60 20 85 75 65
0 10 5 5 20 25 20 20 30 25
15 15 10 10 20 40 30 25 20 45 40 30
-20 5 20 15 10 20 20 15 10 5 20 25 20 15 20 30 25 20
Unit Size 80,000 BTUh
Winter
Design
Temp
°F
Pipe
Dia. in.
Uninsulated 3/8-in. Insulation 1/2-in. Insulation
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
Unit Size 26,000* BTUh
Winter
Design
Temp
°C
Pipe Dia.
mm
0” Insulation 3/8” Insulation 1/2” Insulation
38 51 38 51 38 51
-7 6.1 6.1 15.2 13.7 18.3 15.2
-18 1.5 1.5 7.6 6.1 9.1 7.6
-29
4.6 3.0 6.1 4.6
-40
3.0 1.5 4.6 3.0
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