Carrier 58MXA Product Data page 12

MAXIMUM ALLOWABLE EXPOSED VENT PIPE LENGTH (FT) WITH INSULATION
WINTER DESIGN
TEMP °F
UNIT SIZE
20
040-08
0
040-12
–20
20
060-12
0
060-16
–20
20
080-12
080-16 0
080-20
–20
20
100-16
0
100-20
–20
20
120-20 0
–20
* Pipe length (ft) specified for maximum vent pipe lengths located in unconditioned spaces. Vent pipes located in unconditioned space cannot exceed the total allowable
pipe length as specified in maximum allowable pipe length table.
† Insulation thickness based on R value of 3.5 per in.
12
IN WINTER DESIGN TEMPERATURE AMBIENT*
MAXIMUM PIPE
DIA 0
1-1/2 31
1-1/2 16
1-1/2 9
2 45
2 25
2 16
2-1/2 55
2-1/2 31
2-1/2 20
3 61
3 33
3 20
3 70
3 40
3 26
INSULATION THICKNESS (IN.)†
3/8 1/2
56 63
34 39
23 27
70 70
51 58
36 42
70 70
61 69
43 49
70 70
65 70
45 52
70 70
70 70
55 64
3/4 1
70 70
47 54
34 39
70 70
70 70
51 60
70 70
70 70
61 70
70 70
70 70
65 70
70 70
70 70
70 70