UH-PRC001-EN
16
Selection
Procedure
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.
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