Carrier SINGLE PACKAGE ROOFTOP UNITS 48PG20-28 User Manual

Page 25

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25

Table 11 — Fan Performance — 48PGD28 — Vertical Supply/Return Units

LEGEND

Boldface indicates field-supplied motor/drive required.

NOTES:
1. Motor drive ranges:

(A) Low Range: 687-873 rpm, 5.75 bhp
(B) Mid-Low Range: 805-1007 rpm, 5.75 bhp
(C) Mid-High Range: 941-1176 rpm, 8.63 bhp
(D) High Range: 1014-1297 rpm, 11.50 bhp
All other rpms require field-supplied motor or drive.

2. See page 36 for general fan performance notes.

AIRFLOW

(Cfm)

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

0.2

0.4

0.6

0.8

1.0

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

6,500

750

2.28

806

2.62

854

2.93

898

3.25

943

3.59

7,000

797

2.78

853

3.17

899

3.50

941

3.84

982

4.18

7,500

845

3.34

900

3.78

945

4.15

985

4.51

1024

4.87

8,000

892

3.97

948

4.48

991

4.88

1030

5.26

1067

5.64

8,500

939

4.68

995

5.25

1038

5.69

1076

6.10

1112

6.50

9,000

986

5.46

1042

6.10

1085

6.59

1122

7.04

1157

7.46

9,500

1033

6.32

1090

7.04

1132

7.59

1169

8.07

1203

8.52

10,000

1079

7.26

1137

8.07

1180

8.67

1216

9.19

1249

9.68

10,500

1126

8.28

1184

9.20

1227

9.86

1263

10.43

1296

10.95

11,000

1172

9.40

1232

10.42

1274

11.15

1310

11.76

1342

12.33

11,500

1219

10.61

1279

11.74

1322

12.54

1357

13.21

12,000

1265

11.91

1326

13.17

12,500

1311

13.32

AIRFLOW

(Cfm)

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

1.2

1.4

1.6

1.8

2.0

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

6,500

988

3.97

1035

4.40

1082

4.87

1130

5.39

1177

5.95

7,000

1024

4.56

1066

4.98

1109

5.43

1153

5.94

1197

6.48

7,500

1063

5.25

1101

5.66

1141

6.10

1181

6.59

1222

7.12

8,000

1104

6.03

1140

6.44

1176

6.88

1213

7.36

1251

7.87

8,500

1146

6.91

1180

7.33

1214

7.77

1249

8.24

1283

8.74

9,000

1190

7.89

1222

8.32

1255

8.77

1287

9.24

1319

9.74

9,500

1235

8.97

1266

9.42

1296

9.88

1327

10.36

1357

10.86

10,000

1280

10.16

1310

10.63

1340

11.10

1369

11.59

1398

12.09

10,500

1326

11.45

1355

11.95

1384

12.44

11,000

1372

12.86

11,500

12,000

12,500

Bhp — Brake Horsepower Input to Fan

A

A

A

B

B

B

B

B

C

C

C

C

C

D

D

D

D

D

D

D

D

D

D

C

C

C

C

B

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