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Table SP-4 – Model S Horizontal Unit Heater Steam Capacities con’t
2 Lbs. Steam 60 F Entering Air Temp
Motor Motor BTU Condensate Final CFM 70 F Outlet Oper.
Size HP RPM Per Hour EDR Lbs Per Hr Temp Air Basis Velocity Weight
Low Final Temp. “Bypass” Units
1050 19,300 80 20 106 390 220
19-S2 1/25
950 18,300 77 19 108 360 205 40
800 16,300 68 17 110 300 173
1550 30,400 127 31 104 635 359
31-S 1/20
1300 27,800 116 29 109 520 302 40
1100 25,300 106 26 112 450 257
1550 45,800 191 47 107 897 363
45-S 1/20
1300 41,300 173 43 112 740 304 55
1100 37,300 156 39 116 630 259
1550 53,300 223 55 105 1090 439
53-S 1/8
1300 50,200 209 52 109 940 383 55
1100 46,200 192 48 114 795 327
1550 69,400 290 72 108 1337 407
69-S 1/8
1300 63,400 264 66 112 1125 346 70
1100 57,600 240 60 116 955 295
1550 76,600 320 79 107 1510 458
77-S 1/8
1300 71,700 299 74 111 1304 300 80
1100 65,800 274 68 116 1100 341
91-S 1/6 1100 91,000 380 94 108 1740 394 95
127-S 1/6 1100 125,800 524 130 108 2440 448 135
137-S 1/4 1100 135,800 567 140 107 2700 495 135
181-S 1/4 1100 180,700 755 187 109 3392 430 180
207-S 1/2 1100 206,900 863 214 107 4059 514 185
243-S 1/2 1100 238,700 995 248 108 4607 439 230
273-S 1/2 1100 272,200 1135 283 105 5644 536 235
Notes:
1. Constant speed units are rated at capacities shown in regular type: Capacities in italic faced type apply only to units with multi-speed motors.
2. Capacities based on 2 psi steam and 60 F entering air.