Carrier SINGLE PACKAGE ROOFTOP UNITS 48PG20-28 Installation And Service Instructions Manual page 25
Single package rooftop units electric cooling/gas heating with electromechanical controls and puron (r-410a) refrigerant
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Also See for SINGLE PACKAGE ROOFTOP UNITS 48PG20-28:
- User's information manual (11 pages) ,
- Controls, start-up, operation, service and troubleshooting instructions (112 pages) ,
- User's information manual (10 pages)
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Table 11 — Fan Performance — 48PGD28 — Vertical Supply/Return Units
AIRFLOW
0.2
(Cfm)
Rpm
6,500
750
7,000
797
A
7,500
845
8,000
892
B
8,500
939
9,000
986
9,500
1033
10,000
1079
C
10,500
1126
11,000
1172
D
11,500
1219
12,000
1265
12,500
1311
AIRFLOW
1.2
(Cfm)
Rpm
6,500
B
988
7,000
1024
7,500
1063
C
8,000
1104
8,500
1146
9,000
1190
9,500
1235
D
10,000
1280
10,500
1326
11,000
1372
11,500
—
12,000
—
12,500
—
LEGEND
Bhp — Brake Horsepower Input to Fan
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.
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
Bhp
Rpm
Bhp
2.28
806
2.62
A
2.78
853
3.17
3.34
900
3.78
3.97
948
4.48
B
4.68
995
5.25
5.46
1042
6.10
6.32
1090
7.04
C
7.26
1137
8.07
8.28
1184
9.20
D
9.40
1232
10.42
10.61
1279
11.74
11.91
1326
13.17
13.32
—
—
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
Bhp
Rpm
Bhp
3.97
1035
4.40
4.56
1066
4.98
C
5.25
1101
5.66
6.03
1140
6.44
6.91
1180
7.33
7.89
1222
8.32
D
8.97
1266
9.42
10.16
1310
10.63
11.45
1355
11.95
12.86
—
—
—
—
—
—
—
—
—
—
—
0.6
Rpm
Bhp
Rpm
854
2.93
898
A
899
3.50
941
B
945
4.15
985
B
991
4.88
1030
1038
5.69
1076
C
1085
6.59
1122
C
1132
7.59
1169
1180
8.67
1216
D
1227
9.86
1263
D
1274
11.15
1310
1322
12.54
1357
—
—
—
—
—
—
1.6
Rpm
Bhp
Rpm
1082
4.87
1130
C
1109
5.43
1153
C
1141
6.10
1181
1176
6.88
1213
D
1214
7.77
1249
1255
8.77
1287
D
1296
9.88
1327
1340
11.10
1369
1384
12.44
—
—
—
—
—
—
—
—
—
—
—
—
—
25
0.8
1.0
Bhp
Rpm
3.25
943
B
3.84
982
4.51
1024
5.26
1067
C
6.10
1112
7.04
1157
8.07
1203
9.19
1249
D
10.43
1296
11.76
1342
13.21
—
—
—
—
—
1.8
2.0
Bhp
Rpm
5.39
1177
5.94
1197
6.59
1222
D
7.36
1251
8.24
1283
9.24
1319
10.36
1357
11.59
1398
—
—
—
—
—
—
—
—
—
—
Bhp
3.59
4.18
4.87
5.64
6.50
7.46
8.52
9.68
10.95
12.33
—
—
—
Bhp
5.95
6.48
7.12
7.87
8.74
9.74
10.86
12.09
—
—
—
—
—
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Troubleshooting
