Hot Water Performance Data

Table 38. HOT WATER CONVERSION FACTORS BASED ON 200° ENTERING WATER 60° ENTERING AIR 20° TEMPERATURE DROP

ENTERING AIR

 

 

ENTERING WATER TEMPERATURE -20° WATER TEMPERATURE DROP

 

 

 

 

 

 

 

 

 

 

 

 

 

TEMPERATURE

100°

120°

140°

160°

180°

200°

220°

240°

260°

280°

300°

°F (°C)

(38°)

(49°)

(60°)

(71°)

(82°)

(93°)

(104°)

(116°)

(127°)

(138°)

(149°)

 

 

 

 

 

 

 

 

 

 

 

 

30° (-1)

0.518

0.666

0.814

0.963

1.120

1.268

1.408

1.555

1.702

1.850

1.997

 

 

 

 

 

 

 

 

 

 

 

 

40° (4)

0.439

0.585

0.731

0.878

1.025

1.172

1.317

1.464

1.609

1.755

1.908

 

 

 

 

 

 

 

 

 

 

 

 

50° (10)

0.361

0.506

0.651

0.796

0.941

1.085

1.231

1.375

1.518

1.663

1.824

 

 

 

 

 

 

 

 

 

 

 

 

60° (16)

0.286

0.429

0.571

0.715

0.857

1.000

1.143

1.286

1.429

1.571

1.717

 

 

 

 

 

 

 

 

 

 

 

 

70° (21)

0.212

0.353

0.494

0.636

0.777

0.918

1.060

1.201

1.342

1.483

1.630

 

 

 

 

 

 

 

 

 

 

 

 

80° (27)

0.140

0.279

0.419

0.558

0.698

0.837

0.977

1.117

1.257

1.397

1.545

 

 

 

 

 

 

 

 

 

 

 

 

90° (32)

0.069

0.207

0.345

0.483

0.621

0.759

0.897

1.035

1.173

1.311

1.462

 

 

 

 

 

 

 

 

 

 

 

 

100° (38)

0

0.137

0.273

0.409

0.546

0.682

0.818

0.955

1.094

1.230

1.371

 

 

 

 

 

 

 

 

 

 

 

 

To obtain the BTU capacity for conditions other than those in the basic capacity tables, multiply the basic rating (200° entering water, 60° entering air) by the proper constant from the above tables.

Table 39. HOT WATER BTU, GPM AND PRESSURE LOSS FACTORS BASED ON STANDARD CONDITIONS OF 200°F ENTERING WATER 60°F ENTERING AIR & 20°F WATER DROP

USE FACTORS FROM THIS TABLE TO OBTAIN

 

 

 

TEMPERATURE DROP °F (°C)

 

 

 

 

 

 

 

 

 

 

 

APPROXIMATE RESULTS

5 (3) 10 (6) 15 (8) 20 (11)

25 (14)

30 (17)

40 (22)

50 (28)

60 (33)

 

 

 

 

 

 

 

 

 

 

To obtain BTU for other Water Temperature Drops,

1.25

1.15

1.08

1.00

.94

.90

.83

.76

.72

multiply basic BTU rating by applicable Factor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To obtain GPM for other Water Temperature Drops,

5.00

2.30

1.44

1.00

.74

.59

.40

.30

.24

multiply basic GPM rating by applicable Factor.*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To obtain Pressure Loss Feet of Water for other

10.00

5.00

2.00

1.00

.60

40

.20

.13

.07

temperature Drops, multiply Basic loss at 20° drop by

 

 

 

 

 

 

 

 

 

Factor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 40. *MINIMUM WATER FLOW - GPM

MODEL No.

42

64

80

102

146

166

202

252

336

384

 

 

 

 

 

 

 

 

 

 

 

MIN. GPM (L/s)

.55

.55

.55

.55

.82

.82

1.10

1.10

1.10

1.10

 

(.035)

(.035)

(.035)

(.035)

(.052)

(.052)

(.069)

(.069)

(.069)

(.069)

 

 

 

 

 

 

 

 

 

 

 

Table 41. *HEATING CAPACITY FACTORS FOR VARIOUS RATES OF WATER FLOW

% of Rated Water Flow

25%

50%

75%

100%

125%

150%

175%

 

 

 

 

 

 

 

 

Btu/Hr Heating Capacity

.80

.89

.96

1.00

1.04

1.07

1.10

 

 

 

 

 

 

 

 

54

UH-SVX01A-EN

Page 54
Image 54
Trane UH-SVX01A-EN manual Minimum Water Flow GPM, 10 6 15 8 20

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