Carrier Weathermaster 48HJD Series Product Data page 40

Single-package rooftop units high-efficiency electric cooling/ gas heating
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Performance data (cont)
48HJ004 (3 TONS) — STANDARD MOTOR (BELT DRIVE)
Airflow
0.1
(Cfm)
Rpm
900
526
1000
570
1100
614
1200
658
1300
703
1400
725
1500
755
48HJ004 (3 TONS) — STANDARD MOTOR (BELT DRIVE) (cont)
Airflow
0.7
(Cfm)
Rpm
900
924
1000
936
1100
960
1200
988
1300
1012
1400
1027
1500
1056
48HJ004 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)
Airflow
0.2
(Cfm)
Rpm
900
584
1000
627
1100
670
1200
710
1300
752
1400
776
1500
816
48HJ004 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE) (cont)
Airflow
1.2
(Cfm)
Rpm
900
1120
1000
1185
1100
1225
1200
1266
1300
1306
1400
1347
1500
1385
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 3.)
2. Motor drive range is 760 to 1090 rpm for standard motors; 1075 to 1455 rpm
for high-static motors. All other rpms require a field-supplied drive.
3. Values include losses for filters, unit casing, and wet coils. See page 49 for
accessory/FIOP static pressure information.
40
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS
0.2
Bhp
Rpm
Bhp
0.06
584
0.08
0.09
627
0.13
0.13
670
0.16
0.16
710
0.23
0.20
752
0.27
0.29
776
0.31
0.33
816
0.38
0.8
Bhp
Rpm
Bhp
0.32
953
0.35
0.35
977
0.39
0.39
1005
0.43
0.45
1038
0.50
0.51
1061
0.56
0.56
1071
0.60
0.63
1097
0.68
0.4
Bhp
Rpm
0.08
734
0.13
800
0.16
812
0.23
840
0.27
868
0.31
891
0.38
924
1.4
Bhp
Rpm
0.54
1155
0.60
1222
0.65
1263
0.72
1306
0.79
1347
0.87
1389
0.96
1428
External Static Pressure (in. wg)
0.3
0.4
Rpm
Bhp
Rpm
656
0.12
734
738
0.19
800
758
0.23
812
780
0.28
840
808
0.32
868
845
0.38
891
870
0.43
924
External Static Pressure (in. wg)
0.9
1.0
Rpm
Bhp
Rpm
989
0.38
1028
1020
0.44
1064
1052
0.49
1100
1136
1076
0.53
1094
0.61
1172
1108
0.67
1208
1117
0.70
1245
External Static Pressure (in. wg)
0.6
Bhp
Rpm
Bhp
0.22
875
0.27
0.26
895
0.31
0.29
914
0.35
0.32
938
0.40
0.37
963
0.45
0.42
983
0.51
0.48
1014
0.58
External Static Pressure (in. wg)
1.6
Bhp
Rpm
Bhp
0.59
1186
0.64
0.66
1255
0.71
0.71
1298
0.77
0.79
1341
0.86
0.87
1383
0.94
0.95
1427
1.03
1467
1.14
1.05
4. Maximum continuous bhp is 1.20 for standard motors; 2.40 for high-static
motors. Extensive motor and electrical testing on these units ensures that the
full range of the motor can be utilized with confidence. Using your fan motors
up to the ratings shown will not result in nuisance tripping or premature motor
failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data
tables on pages 47 and 48 for additional information.
5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier rep-
resentative to verify.
6. Interpolation is permissible. Do not extrapolate.
0.5
Bhp
Rpm
Bhp
0.22
818
0.25
0.26
848
0.29
0.29
863
0.32
0.32
889
0.36
0.37
916
0.41
0.42
937
0.47
0.48
969
0.53
1.1
Bhp
Rpm
Bhp
0.42
1074
0.45
0.48
1124
0.52
0.52
1163
0.56
0.59
1201
0.61
0.65
1239
0.69
0.70
1278
0.75
0.74
1315
0.80
0.8
Rpm
Bhp
Rpm
953
0.36
1028
977
0.39
1064
1005
0.43
1100
1038
0.50
1136
1061
0.56
1172
1071
0.60
1208
1097
0.68
1245
1.8
Rpm
Bhp
Rpm
1215
0.69
1240
1285
0.77
1312
1328
0.83
1357
1373
0.92
1402
1416
1.01
1446
1461
1.11
1492
1502
1.22
1534
0.6
Rpm
Bhp
875
0.27
895
0.31
914
0.35
938
0.40
963
0.45
983
0.51
1014
0.58
1.2
Rpm
Bhp
1120
0.50
1185
0.55
1225
0.60
1266
0.64
1306
0.72
1347
0.79
1385
0.85
1.0
Bhp
0.42
0.48
0.52
0.59
0.65
0.70
0.74
2.0
Bhp
0.73
0.82
0.88
0.98
1.07
1.18
1.30

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