Performance Data—Heat

Table 30 Hot Water Coil Heating Capacities (Q/ITD)

 

 

Water

 

 

 

 

 

 

 

 

 

 

 

 

Flow

 

High Capacity

 

 

Low Capacity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(GPM)

40

80

120

160

200

30

60

100

140

175

 

Airflow

 

 

 

 

 

 

 

 

 

 

 

 

WPD

 

 

 

 

 

 

 

 

 

 

Casing

(CFM)

(ft.)

0.3

1.0

2.1

3.7

5.6

0.2

0.6

1.5

2.8

4.3

 

 

 

 

 

 

 

 

 

 

 

 

 

A, B, C

16000

 

7.57

9.02

9.59

9.90

10.10

5.50

6.54

7.05

7.29

7.42

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20000

 

8.26

10.08

10.84

11.25

11.52

6.02

7.34

8.01

8.33

8.50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23000

 

8.67

10.75

11.64

12.13

12.44

6.34

7.85

8.63

9.01

9.21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28000

 

9.21

11.69

12.78

13.39

13.79

6.77

8.56

9.52

9.99

10.25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33000

 

9.65

12.46

13.74

14.47

14.94

7.11

9.15

10.28

10.84

11.14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

38000

 

10.00

13.11

14.56

15.40

15.94

7.38

9.65

10.93

11.58

11.93

 

 

 

 

 

 

 

 

 

 

 

 

 

 

43000

 

10.29

13.67

15.28

16.21

16.83

7.61

10.08

11.50

12.22

12.62

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45000

 

10.39

13.87

15.54

16.51

17.15

7.69

10.23

11.71

12.46

12.88

 

 

 

 

 

 

 

 

 

 

 

 

 

Notes:

1.Capacities are expressed as MBH (Q) per degree (F) of initial temperature difference (ITD) between the entering steam temperature (F) and the entering (return) air temperature (F) to the coil.

2.WPD is waterside pressure drop in feet of water

3.Hot water capacity is at 180°F entering water temperature and 65°F entering air temperature

4.Maximum entering water temperature is 200°F.

5.Capacities do not include fan heat.

Table 31 Steam Coil Heating Capacities (Q/ITD)

 

 

High

Low

Casing

Airflow(CFM)

Cap

Cap

 

 

 

 

A, B, C

16000

7.33

4.99

 

 

 

 

 

20000

8.17

5.67

 

 

 

 

 

23000

8.73

6.10

 

 

 

 

 

28000

9.55

6.71

 

 

 

 

 

33000

10.27

7.20

 

 

 

 

 

38000

10.92

7.61

 

 

 

 

 

43000

11.52

7.95

 

 

 

 

 

45000

11.74

8.07

 

 

 

 

Notes:

1.Capacities are expressed as MBH (Q) per degree (F) of initial temperature difference (ITD) between the entering steam temperature (F) and the entering (return) air temperature (F) to the coil.

2.Steam coil capacity is at 15 psig and 65°F entering air temperature.

3.Capacities are expressed as MBH (Q) per degree (F) of initial temperature difference (ITD) between the entering steam temperature (F) and the entering (return) air temperature (F) to the coil.

4.The maximum recommended steam pressure is 35 psig.

5.Capacities do not include fan heat.

Table 32 Properties of Steam

Steam Pressure (psig)

2

5

10

15

20

25

30

40

50

Temperature of Steam (F)

219

227

239

250

259

267

274

287

298

RT-PRC031-EN

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Trane RT-PRC031-EN Performance Data-Heat, Hot Water Coil Heating Capacities Q/ITD, Steam Coil Heating Capacities Q/ITD