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Performance
Data
UNT-PRC001-EN 29
Steam
Reheat 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, 115 V, zero ESP, with a throwaway filter.
Table PD-23. Steam Reheat Coil With Free Discharge Motor, Group 3
2 psig 5 psig
Main (14 kPa) (103 kPa)
Coil TMBH TMBH
FC Rows (TkW) (TkW) Q/ITD
2 4.7 (1) 5.0 (1) 0.03
02 3 4.6 (1) 4.8 (1) 0.03
4 4.4 (1) 4.7 (1) 0.03
2 6.1 (2) 6.5 (2) 0.04
03 3 6.0 (2) 6.4 (2) 0.04
4 5.8 (2) 6.2 (2) 0.04
2 7.9 (2) 8.3 (2) 0.05
04 3 7.7 (2) 8.2 (2) 0.05
4 7.6 (2) 8.0 (2) 0.05
2 12.1 (4) 12.8 (4) 0.08
06 3 12.0 (4) 12.7 (4) 0.08
4 11.7 (3) 12.4 (4) 0.08
2 15.7 (5) 16.6 (5) 0.11
08 3 15.2 (4) 16.1 (5) 0.10
4 14.8 (4) 15.7 (5) 0.10
2 19.7 (6) 20.8 (6) 0.13
10 3 19.7 (6) 20.9 (6) 0.13
4 19.2 (6) 20.3 (6) 0.13
2 22.7 (7) 24.1 (7) 0.15
12 3 22.4 (7) 23.8 (7) 0.15
4 21.8 (6) 23.1 (7) 0.15
Table PD-24. Steam Reheat Coil With High Static Motor, Group 1
2 psig 5 psig
Main (14 kPa) (103 kPa)
Coil TMBH TMBH
FC Rows (TkW) (TkW) Q/ITD
2 6.0 (2) 6.3 (2) 0.04
02 3 5.9 (2) 6.2 (2) 0.04
4 5.6 (2) 5.9 (2) 0.04
2 7.6 (2) 8.0 (2) 0.05
03 3 7.2 (2) 7.7 (2) 0.05
4 7.0 (2) 7.4 (2) 0.05
2 9.1 (3) 9.6 (3) 0.06
04 3 10.1 (3) 10.7 (3) 0.07
4 9.7 (3) 10.3 (3) 0.07
2 14.6 (4) 15.4 (5) 0.10
06 3 15.8 (5) 16.7 (5) 0.11
4 15.2 (4) 16.1 (5) 0.10
2 19.3 (6) 20.5 (6) 0.13
08 3 19.0 (6) 20.1 (6) 0.13
4 18.5 (5) 19.6 (6) 0.13
2 24.0 (7) 25.4 (7) 0.16
10 3 25.3 (7) 26.8 (8) 0.17
4 24.4 (7) 25.9 (8) 0.17
2 27.8 (8) 29.5 (9) 0.19
12 3 28.5 (8) 30.2 (9) 0.19
4 27.8 (8) 29.4 (9) 0.19
Note:
1. Medium and low speed capacities are approximately 80 percent and 60 percent respectively of the high speed capacity.
2. Q/ITD = MBH (kW)/(Saturated steam temperature - Entering air temperature). To determine heating capacities at different
entering steam pressure or entering air temperature, compute the new ITD and multiply it by the Q/ITD shown. (See the Steam
Properties table at the end of this section to determine the saturated steam temperatures at various entering steam pressures.)