Carrier 42C Series Product Data page 32

Application data (cont)
TEMPERATURE
(F)
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
ALTITUDE COOLING CORRECTION FACTORS
ELEVATION (ft) TOTAL HEAT
Sea Level
1000
2000
3000
4000
5000
6000
7000
8000
9000
AIRFLOW CORRECTION FACTORS
CFM RATIO
TOTAL (Ct)
(Actual/Base)
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
LEGEND
CFM — Cubic Feet per Minute
Cs — Sensible Airflow Correction Factor
Ct — Total Airflow Correction Factor
32
ENTHALPY AT SATURATION
ENTHALPY AT
SATURATION
(Btu per lb
of dry air)
15.230
15.697
16.172
16.657
17.149
17.650
18.161
18.680
19.211
19.751
20.301
20.862
21.436
22.020
22.615
23.22
23.84
24.48
25.12
25.78
SENSIBLE HEAT
1.00 1.00
.990 .960
.980 .930
.970 .896
.960 .864
.940 .830
.930 .800
.920 .770
.910 .750
.900 .730
SENSIBLE (Cs)
1.25 1.26
1.22 1.23
1.19 1.20
1.16 1.17
1.13 1.14
1.10 1.11
1.07 1.08
1.04 1.04
1.00 1.00
0.97 0.97
0.94 0.93
0.90 0.89
0.86 0.85
0.82 0.81
0.78 0.77
0.74 0.72
0.70 0.67
0.66 0.62
0.62 0.57
0.58 0.52
0.53 0.47
0.48 0.42
0.43 0.38
0.38 0.33
TEMPERATURE
(F)
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
THERMAL EXPANSION OF COPPER RISERS
300
275
250
225
200
175
150
125
100
75
50
25
0
.000 .005 .010 .015
EXPANSION (INCHES PER FOOT)
ENTHALPY AT
SATURATION
(Btu per lb
of dry air)
26.46
27.15
27.85
28.57
29.31
30.06
30.83
31.62
32.42
33.25
34.09
34.95
35.83
36.74
37.66
38.61
39.57
40.57
41.58
42.62
43.69
.020 .025 .030 .035