Table PD-3 – Model P Unit Heater Hot Water Capacities – 60°F Ent. Air Temp.
(Conversion Factors in Table SP-11 Apply Only to 200 F Entering Water Temperature Columns)
Water
180 F
Unit
Temp.
Size
Drop °F MBH GPM
10
23.8
4.90
96.9
42-P
15
20.8
2.86
92.2
CFM 595
20
17.8 1.83 87.5
RPM 1550
25
14.8
1.22
82.9
HP 1/40
30
—
—
40
—
—
10
18.9
3.90 100.0
42-P
15
16.6
2.27
95.0
CFM 436
20
14.2 1.46 90.0
RPM 1150
25
—
—
HP 1/40
30
—
—
40
—
—
10
40.0
8.25
97 .3
15
35.8
4.91
93.3
64-P
20
31.5 3.25 89.4
CFM 989
25
27 .3
2.25
85.4
RPM 1550
30
23.0
1.58
81.4
HP 1/20
40
—
—
50
—
—
10
31.7
6.53 101.4
15
28.4
3.90
97 .1
64-P
20
25.1 2.58 92.7
CFM 706
25
21.8
1.79
88.4
RPM 1150
30
18.5
1.27
84.1
HP 1/20
40
—
—
50
—
—
10
48.9 10.07
97 .5
15
43.7
6.01
93.6
80-P
20
38.6 3.97 89.6
CFM 1200
25
33.4
2.75
85.7
RPM 1550
30
28.2
1.94
81.7
HP 1/20
40
—
—
50
—
—
10
38.7
7 .99 101.6
15
34.7
4.77
97 .3
80-P
20
30.7 3.16 93.0
CFM 858
25
26.7
2.20
88.7
RPM 1150
30
22.7
1.56
84.4
HP 1/20
40
—
—
50
—
—
See Table SP-12 for abbreviations.
32
Performance
Data
200 F
PD
PD
FT S.W.T . H.W.T .
MBH GPM
.26
.34
28.8
5.93 104.6
.09
.12
25.7
3.54
99.9
.04
.05
22.7 2.34 95.2
.02
.02
19.7
1.63
90.6
—
—
—
16.7
1.15
85.9
—
—
—
—
—
.17
.22
22.9
4.71 108.3
.06
.08
20.5
2.82 103.3
.03
.03
18.1 1.87 98.3
—
—
—
15.8
1.30
93.3
—
—
—
13.4
.92
88.4
—
—
—
—
—
.75
1.00
48.1
9.92 104.8
.28
.37
43.9
6.03 100.9
.13
.17
39.6 4.08 96.9
.06
.08
35.3
2.91
92.9
.03
.04
31.1
2.14
89.0
—
—
—
22.6
1.16
81.0
—
—
—
—
—
.48
.64
38.1
7 .85 109.7
.18
.24
34.8
4.78 105.4
.08
.11
31.5 3.24 101.1
.04
.06
28.2
2.32
96.7
.02
.03
24.8
1.71
92.4
—
—
—
—
—
—
—
—
—
—
.70
.90
58.7 12.11 105.1
.26
.34
53.6
7 .36 101.2
.12
.15
48.4 4.99 97.2
.06
.08
43.3
3.57
93.2
.03
.04
38.1
2.62
89.3
—
—
—
27 .8
1.43
81.3
—
—
—
—
—
.45
.58
46.5
9.59 110.0
.17
.22
42.5
5.84 105.7
.08
.10
38.5 3.97 101.4
.04
.05
34.5
2.84
97 .0
.02
.03
30.5
2.09
92.7
—
—
—
—
—
—
—
—
—
—
Entering Water Temperature
220 F
PD
PD
FT S.W.T . H.W.T
MBH GPM
.37
.49
33.7
6.95 112.2
.14
.18
30.7
4.22 107 .6
.06
.08
27.7 2.86 102.9
.03
.04
24.7
2.04
98.3
.02
.02
21.7
1.49
93.6
—
—
—
—
—
.24
.31
26.8
5.52 116.6
.09
.12
24.4
3.36 111.6
.04
.05
22.1 2.27 106.7
.02
.03
19.7
1.63 101.7
.01
.01
17 .4
1.19
96.7
—
—
—
—
—
1.05
1.40
56.2 11.58 112.4
.41
.54
51.9
7 .14 108.4
.19
.26
47.7 4.19 104.4
.10
.14
43.4
3.58 100.5
.06
.08
39.2
2.69
96.5
.02
.02
30.7
1.58
88.6
—
—
—
22.2
.91
80.7
.67
.90
44.5
9.17 118.1
.26
.35
41.2
5.66 113.7
.13
.17
37.8 3.90 109.4
.07
.09
34.5
2.85 105.1
.04
.05
31.2
2.15 100.8
—
—
—
24.6
1.27
92.1
—
—
—
—
—
.98
1.27
68.6 14.14 112.7
.38
.49
63.5
8.72 108.7
.18
.23
58.3 6.01 104.8
.10
.12
53.1
4.38 100.8
.05
.07
48.0
3.30
96.8
.02
.02
37 .7
1.94
88.9
—
—
—
—
—
.63
.81
54.3 11.20 118.4
.24
.31
50.3
6.91 114.1
.12
.15
46.3 4.77 109.7
.06
.08
42.3
3.49 105.4
.03
.04
38.3
2.63 101.1
—
—
—
30.2
1.56
92.5
—
—
—
—
—
240 F
PD
PD
FT S.W.T . H.W.T
MBH GPM
.49
.65
38.7
7 .98 119.9
.19
.25
35.7
4.90 115.3
.09
.12
32.7 3.37 110.6
.05
.06
29.7
2.45 105.9
.03
.03
26.7
1.83 101.3
—
—
—
20.6
1.06
91.9
.32
.42
30.7
6.33 125.0
.12
.16
28.4
3.90 120.0
.06
.08
26.0 2.68 115.0
.03
.04
23.7
1.95 110.0
.02
.02
21.3
1.46 105.0
—
—
—
16.6
.85
95.0
1.40
1.86
64.3 13.25 119.9
.56
.74
60.0
8.25 115.9
.27
.36
55.8 5.75 112.0
.15
.20
51.5
4.25 108.0
.09
.12
47 .3
3.25 104.0
.03
.04
38.8
2.00
96.1
.01
.02
30.2
1.25
88.2
.90
1.19
50.9 10.48 126.4
.36
.48
47 .5
6.53 122.1
.18
.23
44.2 4.56 117 .7
.10
.13
40.9
3.37 113.4
.06
.08
37 .6
2.58 109.1
.02
.03
31.0
1.60 100.5
—
—
—
24.4
1.00
91.8
1.31
1.69
78.5 16.17 120.3
.52
.67
73.3 10.07 116.3
.25
.33
68.2 7 .02 112.3
.14
.18
63.0
5.19 108.4
.08
.10
57 .8
3.97 104.4
.03
.04
47 .5
2.45
96.5
—
—
—
37 .2
1.53
88.6
.84
1.08
62.1 12.81 126.7
.33
.43
58.1
7 .99 122.4
.16
.21
54.1 5.57 118.1
.09
.12
50.1
4.13 113.8
.05
.07
46.1
3.16 109.5
.02
.03
38.0
1.96 100.9
—
—
—
30.0
1.24
92.2
PD
PD
FT S.W.T . H.W.T .
.64
.84
.25
.33
.12
.16
.07
.09
.04
.05
.01
.02
.41
.54
.16
.21
.08
.10
.04
.06
.02
.03
.01
.01
1.80
2.39
.73
.97
.36
.49
.21
.27
.12
.16
.05
.07
.02
.03
1.15
1.53
.47
.62
.23
.31
.13
.18
.08
.11
.03
.04
.01
.02
1.68
2.16
.68
.87
.34
.44
.19
.25
.11
.15
.05
.06
.02
.02
1.07
1.38
.43
.56
.22
.28
.12
.16
.07
.10
.03
.04
.01
.02
UH-PRC001-EN