25UH-PRC001-EN
Table PD-1 (Continued) — Model S 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)
Entering Water Temperature
Water 260 F 300 F 340 F 380 F
Unit Temp. PD PD PD PD PD PD PD PD
Size Drop °F MBH GPM FT S.W.T. H.W.T. MBH GPM FT S.W.T. H.W.T MBH GPM FT S.W.T. H.W.T MBH GPM FT S.W.T. H.W.T.
18-S 10 15.5 3.19 111.0 .10 .12 19.7 4.07 124.9 .15 .18 24.0 4.94 138.8 .21 .25 28.2 5.81 152.7 .27 .32
CFM 280 20 9.8 1.01 92.3 .01 .02 14.1 1.45 106.3 .02 .03 18.3 1.89 120.2 .04 .05 22.5 2.32 134.1 .05 .06
RPM 1075 30 ———— —8.4 .58 87.6 .00 .01 12.6 .87 101.5 .01 .01 16.9 1.16 115.5 .02 .02
HP 1/50 40 ———— — ——— —— ————— 11.2 .58 96.8 .00 .01
10 40.5 8.34 128.7 .79 .94 50.0 10.30 144.9 1.10 1.32 ————— —————
38-S 20 33.4 3.44 116.6 .16 .20 42.9 4.42 132.8 .25 .30 ————— —————
CFM 543 30 26.2 1.80 104.5 .05 .06 35.7 2.46 120.7 .09 .10 45.3 3.11 136.8 .13 .15 —————
RPM 1550 40 19.1 .98 92.4 .02 .02 28.6 1.47 108.6 .04 .04 38.1 1.97 124.7 .06 .07 47.7 2.46 140.9 .08 10
HP 1/20 50 ———— —21.5 .89 96.5 .01 .02 31.0 1.28 112.7 .03 .03 40.5 1.67 128.8 04 .05
60 ———— — ——— ——23.9 .82 100.6 .01 .01 33.4 1.15 116.7 ’02 .03
10 42.5 8.75 126.2 .86 1.02 52.4 10.81 141.8 1.20 1.43 ————— —————
42-S 20 35.0 3.61 114.6 .18 .21 45.0 4.64 130.2 .27 .32 55.0 5.67 145.7 .37 .44 —————
CFM 591 30 27.6 1.89 103.0 .06 .07 37.5 2.58 118.5 .10 .11 47.5 3.26 134.1 .14 .17 —————
RPM 1550 40 20.1 1.04 91.3 .02 .02 30.1 1.55 106.9 .04 .05 40.1 2.06 122.5 .06 .07 50.1 2.58 138.1 .09 .11
HP 1/20 50 ———— —22.6 .93 95.3 .02 .02 32.6 1.34 110.9 .03 .04 42.6 1.76 126.4 .05 .05
60 ———— — ——— ——25.2 .86 99.2 .01 .02 35.1 1.21 114.8 .02 .03
20 56.0 5.77 123.4 .51 .62 70.3 7.25 139.5 .74 .89 ————— —————
30 48.3 3.32 114.6 .19 .23 62.6 4.30 130.8 .30 .35 ————— —————
60-S 40 40.6 2.09 105.9 .09 .10 54.9 2.83 122.0 .14 .17 69.2 3.56 138.2 .20 .25 —————
CFM 815 50 32.8 1.35 97.1 .04 .05 47.1 1.94 113.3 .07 .09 61.4 2.53 129.5 .11 .13 75.7 3.12 145.6 .16 .19
RPM 1550 60 25.1 .86 88.4 .02 .02 39.4 1.35 104.6 .04 .05 53.7 1.84 120.7 .06 .08 68.0 2.34 136.9 .09 .11
HP 1/20 80 ———— — ——— ——38.3 .99 103.3 .02 .03 52.5 1.35 119.4 .04 .04
100 ———— — ——— —— ————— 37.1 .76 101.9 .01 .02
20 65.5 6.75 114.9 .68 .81 82.3 8.48 129.0 .98 1.17 99.0 10.21 143.0 1.31 1.56 —————
30 56.4 3.88 107.3 .26 .31 73.2 5.03 121.3 .39 .47 89.9 6.18 135.4 .54 .65 —————
70-S 40 47.4 2.44 99.7 .11 .14 64.1 3.30 113.7 .19 .22 80.8 4.17 127.7 .27 .32 97.6 5.03 141.8 .36 .43
CFM 1100 50 38.3 1.58 92.1 .05 .06 55.0 2.27 106.1 .10 .12 71.8 2.96 120.1 .15 .18 88.5 3.65 134.2 .21 .25
RPM 1550 60 29.2 1.00 84.4 .02 .03 45.9 1.58 98.5 .05 .06 62.7 2.15 112.5 .08 .10 79.4 2.73 126.5 .12 .15
HP 1/8 80 ———— —27.7 .71 83.2 .01 .02 44.5 1.15 97.2 .03 .03 61.2 1.58 111.3 .05 .06
100 ———— — ——— —— —————43.0 .89 96.0 .02 .02
40 69.7 3.59 112.9 .27 .32 90.6 4.67 128.7 .41 .50 ————— —————
90-S 50 61.1 2.52 106.4 .15 .17 82.0 3.38 122.2 .24 .28 102.8 4.24 138.0 .34 .40 —————
CFM 1214 60 52.6 1.81 99.9 .08 .10 73.4 2.52 115.7 .14 .17 94.2 3.24 131.5 .21 .25 115.0 3.95 147.3 .29 .34
RPM 1550 80 35.4 .91 86.9 .02 .03 56.2 1.45 102.7 .05 .06 77.0 1.98 118.5 .09 .11 97.8 2.52 134.3 .13 .16
HP 1/8 100 ———— —39.0 .80 89.6 .02 .02 59.8 1.23 105.4 .04 .05 80.7 1.66 121.2 .06 .08
120 ———— — ——— ——42.7 .73 92.4 .02 .02 63.5 1.09 108.2 .03 .04
40 78.1 4.02 106.9 .33 .40 101.6 5.23 121.0 .51 .61 125.0 6.44 135.1 .71 .84 —————
50 68.3 2.82 101.0 .18 .21 91.8 3.78 115.1 .29 .34 115.2 4.75 129.2 .41 .49 138.7 5.72 143.3 .55 .66
100-S 60 58.5 2.01 95.1 .10 .12 82.0 2.82 109.2 .17 .20 105.4 3.62 123.3 .26 .31 128.9 4.43 137.4 .35 .42
CFM 1535 80 38.9 1.00 83.4 .03 .03 62.4 1.61 97.4 .06 .08 85.8 2.21 111.5 .11 .13 109.3 2.82 125.6 .16 .19
RPM 1550 100 19.3 .40 71.6 .01 .01 42.8 .88 85.7 .02 .03 66.2 1.37 99.8 .05 .06 89.7 1.85 113.9 .08 .09
HP 1/8 120 ———— — ——— ——46.6 .80 88.0 .02 .02 70.1 1.20 102.1 .04 .04
140 ———— — ——— ——27.0 .40 76.2 .01 .01 50.5 .74 90.3. .02 .02
50 99.5 4.10 112.1 .42 .51 129.5 5.34 127.8 .65 .78 159.6 6.58 143.6 .90 1.08 —————
60 89.3 3.07 106.8 .25 .30 119.4 4.10 122.5 .41 .49 149.4 5.13 138.2 .59 .70 —————
126-S 80 69.0 1.78 96.1 .10 .12 99.1 2.55 111.9 .18 .21 129.1 3.33 127.6 .27 .33 159.2 4.10 143.3 .38 .46
CFM 1760 100 48.7 1.00 85.5 .04 .04 78.8 1.62 101.3 .08 .10 108.8 2.24 117.0 .14 .17 138.9 2.86 132.7 .20 .24
RPM 1100 120 28.4 .49 74.9 .01 .01 58.5 1.00 90.6 .03 .04 88.5 1.52 106.4 .07 .08 118.6 2.04 122.1 .11 .14
HP 1/6 140 ———— — ——— ——68.2 1.00 95.7 .03 .04 98.3 1.45 111.5 .06 .07
160 ———— — ——— ——47.9 .62 85.1 .01 .02 78.0 1.00 100.8 .03 .04
40 151.2 7.79 118.5 1.53 1.83 191.0 9.84 133.9 2.23 2.66 ————— —————
50 139.4 5.75 114.0 .90 1.07 179.1 7.38 129.3 1.35 1.61 218.8 9.02 144.7 1.84 2.21 —————
168-S 60 127.6 4.38 109.4 .56 .67 167.3 5.75 124.8 .87 1.04 207.0 7.11 140.1 1.22 1.46 —————
CFM 2381 80 103.9 2.68 100.2 .23 .28 143.6 3.70 115.6 .40 .48 183.3 4.72 131.0 .60 .71 223.0 5.75 146.3 .81 .97
RPM 1100 100 80.2 1.65 91.1 .10 .12 120.0 2.47 106.4 .20 .24 159.7 3.29 121.8 .32 .38 199.4 4.11 137.2 .45 .54
HP 1/6 120 56.6 .97 81.9 .04 .05 96.3 1.65 97.3 .10 .12 136.0 2.34 112.6 .17 .21 175.7 3.02 128.0 .26 .32
140 ———— —72.6 1.07 88.1 .05 .05 112.3 1.65 103.5 .10 .11 152.1 2.24 118.9 .16 .19
160 ———— —49.0 .63 79.0 02 .02 88.7 1.14 94.3 .05 .06 128.4 1.65 109.7 .09 .11
180 ———— — ——— ——65.0 .74 85.2 .02 .03 104.7 1.20 100.5 .05 .06
Performance
Data
