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CAB-PRC001-EN 23
Steam
Coils
Heating performance is based on 70 F (21 C) entering air temperature, 2 psig (14 kPa) and 5 psig (103 kPa) entering steam pressure.
All performance measured on high speed tap, zero ESP, no filter.
Table PD-10. High Static Motor, Group 1
2 psig 5 psig
Unit CFM TMBH TMBH 115V 230V 277V
Size Coil (L/s) (TkW) Q/ITD (TkW) Q/ITD Watt Watt Watt
2 Steam 208 (132) 10.8 (3.2) 0.07 11.5 (3.4) 0.07 145 145 145
3 Steam 358 (169) 13.9 (4.1) 0.09 14.7 (4.3) 0.09 140 140 140
4 Steam 393 (185) 17.5 (5.1) 0.12 18.5 (5.4) 0.12 170 180 170
6 Steam 658 (311) 27.3 (8.0) 0.18 28.9 (8.5) 0.18 245 240 240
8 Steam 901 (425) 36.7 (10.7) 0.25 38.9 (11.4) 0.25 320 320 320
10 Steam 1110 (524) 46.4 (13.6) 0.31 49.2 (14.4) 0.31 415 420 410
12 Steam 1264 (597) 54.0 (15.8) 0.36 57.2 (16.8) 0.36 490 500 490
Table PD-11. High Static Motor, Group 2
2 psig 5 psig
Unit CFM TMBH TMBH 115V 230V 277V
Size Coil (L/s) (TkW) Q/ITD (TkW) Q/ITD Watt Watt Watt
2 Steam 251 (119) 10.4 (3.0) 0.07 11.0 (3.2) 0.07 145 145 145
3 Steam 326 (154) 13.4 (3.9) 0.09 14.2 (4.2) 0.09 140 140 140
4 Steam 364 (172) 16.9 (5.0) 0.11 17.9 (5.3) 0.11 170 180 170
6 Steam 603 (285) 26.3 (7.7) 0.18 27.9 (8.2) 0.18 245 240 240
8 Steam 829 (392) 35.5 (10.4) 0.24 37.6 (11.0) 0.24 320 320 320
10 Steam 1024 (483) 44.9 (13.2) 0.30 47.6 (14.0) 0.30 415 420 410
12 Steam 1171 (553) 52.3 (15.3) 0.35 55.5 (16.3) 0.35 490 500 490
Table PD-12. Steam Properties
Steam Pressure PSIG (kPa) 2 (14) 5 (34) 10 (69) 15 (103)
Sat. Steam Temp. F (C) 219 (104) 227 (108) 239 (115) 250 (121)
Latent Heat — BTU/LB. (kJ/kg) 965 (2240) 960 (2230) 952 (2210) 945 (2200)
Note:
Q/ITD = MBH (kW)/(Saturated Steam temperature - Entering air temperature) when DT and GPM remain constant. To determine heating capacities at a different saturated steam or entering
air temperature, compute the new ITD and multiply it by the Q/ITD shown.steam pressure. All performance measured on high speed tap, zero ESP, with a throwaway filter.