Heating Capacity - Westinghouse WHM24DMA21S Design & Technical Manual

4-2. Heating capacity

NOTE: Values mentioned in the table are calculated based on the maximum capacity.
¢ Model: WHM24DMA21S
AFR CFM
Airflow ID OD
(CFM) (°F) (°F)
TC
60
kW
TC
70
kW
600
TC
75
kW
TC
80
kW
TC
60
kW
TC
70
kW
800
TC
75
kW
TC
80
kW
TC
60
kW
TC
70
kW
1,000
TC
75
kW
TC
80
kW
¢ Model: WHM36DMA21S
AFR CFM
Airflow ID OD
(CFM) (°F) (°F)
43.0
60
2.62
33.2
70
1.96
600
28.0
75
1.64
23.0
80
1.36
48.0
60
3.1
37.2
70
2.26
800
31.4
75
1.90
25.7
80
1.56
53.5
60
3.65
41.1
70
2.60
1,000
35.0
75
2.21
28.8
80
1.84
4-2. Heating capacity
72 67 62 57 52
28.3 28.3 28.2 28.2 28.1
1.64 1.75 1.90 2.06 2.23
21.9 21.7 21.9 21.8 21.6
1.23 1.29 1.42 1.52 1.63
18.4 18.3 18.3 18.3 18.3
1.02 1.10 1.19 1.28 1.40
15.1 15.1 15.1 15.1 15.0
0.85 0.90 0.98 1.06 1.14
31.6 31.6 31.5 30.7 29.0
1.94 2.05 2.22 2.28 2.22
24.5 24.3 24.1 24.1 24.1
1.41 1.51 1.60 1.74 1.89
20.6 20.6 20.4 20.6 20.5
1.19 1.26 1.35 1.48 1.56
16.9 16.9 16.9 16.9 16.9
0.98 1.04 1.13 1.21 1.30
35.2 34.6 32.7 31.2 29.4
2.28 2.33 2.28 2.26 2.21
27.0 27.0 27.0 27.0 26.9
1.62 1.73 1.88 2.03 2.19
23.0 23.0 23.0 22.7 22.7
1.38 1.47 1.59 1.67 1.80
19.0 18.9 18.9 18.9 18.9
1.15 1.22 1.32 1.40 1.52
72 67 62 57 52
43.0 42.9 42.9 42.8 41.2
2.80 3.04 3.30 3.56 3.58
33.0 33.2 33.1 32.8 32.7
2.07 2.27 2.43 2.61 2.84
27.9 27.9 27.9 27.9 27.9
1.76 1.90 2.05 2.24 2.42
23.0 23.0 23.0 22.9 22.9
1.44 1.56 1.70 1.82 1.97
48.0 47.9 46.7 44.1 41.7
3.28 3.55 3.65 3.55 3.51
37.0 36.7 36.7 36.7 36.5
2.42 2.56 2.78 3.02 3.20
31.3 31.0 31.3 31.2 30.7
2.02 2.15 2.37 2.50 2.69
25.7 25.7 25.7 25.7 25.6
1.66 1.80 1.94 2.08 2.24
52.7 49.7 47.5 44.8 42.5
3.73 3.65 3.62 3.54 3.51
41.0 41.0 41.0 40.9 40.9
2.77 3.01 3.25 3.50 3.78
34.9 34.9 34.5 34.5 34.4
2.35 2.55 2.67 2.89 3.13
28.7 28.7 28.7 28.7 28.6
1.95 2.11 2.24 2.43 2.61
47 42 37 32 27
27.1 24.9 23.0 21.4 21.4
2.24 2.16 2.08 2.02 2.23
21.5 21.5 21.5 21.0 21.0
1.77 1.95 2.13 2.21 2.42
18.3 18.1 18.1 18.1 18.1
1.51 1.61 1.76 1.88 2.06
15.0 15.0 15.0 15.0 14.8
1.23 1.32 1.47 1.56 1.65
27.4 25.3 23.4 21.9 21.8
2.20 2.13 2.06 2.02 2.21
24.0 23.9 22.8 21.4 21.3
2.00 2.26 2.25 2.19 2.39
20.2 20.2 20.3 20.3 20.3
1.68 1.85 2.02 2.16 2.37
16.8 16.8 16.6 16.6 16.6
1.40 1.54 1.63 1.74 1.89
27.9 25.7 23.7 22.2 22.1
2.20 2.13 2.08 2.03 2.23
26.9 25.1 23.2 21.7 21.7
2.36 2.32 2.26 2.20 2.41
22.6 22.7 22.6 21.4 21.4
1.95 2.14 2.32 2.30 2.51
18.8 18.6 18.6 18.6 18.6
1.63 1.74 1.89 2.01 2.19
47 42 37 32 27
37.9 35.0 32.5 32.6 30.6
3.45 3.33 3.24 3.56 3.46
32.7 32.7 32.0 32.0 29.8
3.13 3.40 3.54 3.87 3.75
27.5 27.5 27.5 27.5 27.5
2.57 2.82 3.01 3.30 3.55
22.8 22.8 22.9 22.6 22.6
2.12 2.35 2.49 2.65 2.85
38.5 35.6 33.2 33.1 30.7
3.40 3.30 3.22 3.54 3.44
36.4 34.7 32.5 32.4 30.3
3.61 3.60 3.50 3.83 3.73
30.7 30.8 30.8 30.8 29.9
2.96 3.22 3.45 3.79 3.89
25.6 25.3 25.3 25.2 25.3
2.47 2.61 2.79 3.03 3.27
39.0 36.1 33.8 33.7 31.5
3.40 3.32 3.25 3.56 3.48
38.2 35.2 33.0 32.9 30.8
3.72 3.61 3.52 3.85 3.75
34.5 34.4 32.6 32.5 30.4
3.43 3.72 3.68 4.02 3.91
28.2 28.2 28.3 28.2 28.2
2.78 3.02 3.21 3.50 3.75
- 11 -
800
22 17 12 7 2
20.1 19.2 18.0 16.7 15.6
2.17 2.11 2.00 1.99 1.93
19.6 19.0 17.7 16.4 15.4
2.35 2.28 2.20 2.14 2.08
18.1 18.0 16.7 15.4 14.1
2.22 2.38 2.30 2.23 2.17
14.8 14.8 14.8 14.8 13.9
1.78 1.92 2.08 2.26 2.26
20.2 19.7 18.3 17.0 15.9
2.15 2.10 2.05 1.99 1.94
19.9 19.4 17.9 16.6 15.6
2.33 2.26 2.20 2.14 2.08
19.7 18.3 17.0 15.6 14.2
2.43 2.36 2.29 2.23 2.17
16.6 16.6 16.6 15.4 14.0
2.05 2.20 2.38 2.32 2.25
20.7 19.9 18.6 17.3 16.2
2.17 2.13 2.08 2.03 1.98
20.3 19.6 18.3 17.0 15.9
2.35 2.29 2.23 2.18 2.12
20.0 18.6 17.2 15.9 14.6
2.44 2.38 2.32 2.26 2.20
18.6 18.3 17.0 15.7 14.3
2.35 2.48 2.41 2.35 2.29
1,120
22 17 12 7 2
29.3 27.4 25.4 23.7 22.1
3.37 3.30 3.19 3.09 3.03
28.8 26.9 25.0 23.4 21.7
3.65 3.52 3.43 3.32 3.24
27.4 25.4 23.4 21.4 19.8
3.80 3.68 3.57 3.46 3.37
22.6 22.6 22.6 21.1 19.5
3.08 3.32 3.62 3.61 3.51
29.9 27.9 25.9 24.2 22.6
3.36 3.27 3.19 3.10 3.04
29.6 27.3 25.3 23.7 22.0
3.62 3.52 3.43 3.33 3.26
27.8 25.8 23.7 21.6 20.1
3.78 3.67 3.56 3.46 3.38
25.3 25.3 23.4 21.3 19.8
3.51 3.80 3.72 3.60 3.51
30.3 28.3 26.3 24.6 23.0
3.40 3.33 3.25 3.18 3.12
29.8 27.8 25.8 24.1 22.4
3.66 3.57 3.49 3.39 3.33
28.3 26.2 24.1 22.2 20.7
3.81 3.72 3.62 3.52 3.45
27.9 25.9 23.8 21.8 20.2
3.97 3.86 3.77 3.66 3.57
4. Capacity table
-4
14.6
1.89
14.3
2.02
13.0
2.11
12.8
2.20
14.8
1.90
14.5
2.04
13.2
2.11
13.0
2.20
15.1
1.95
14.8
2.08
13.6
2.16
13.3
2.23
-4
43.0
2.62
33.2
1.96
28.0
1.64
23.0
1.36
48.0
3.1
37.2
2.26
31.4
1.90
25.7
1.56
53.5
3.65
41.1
2.60
35.0
2.21
28.8
1.84