Carrier DesertMaster 50TJM Operation And Maintenance page 22

Package rooftop units
Table of Contents

Advertisement

Fan Performance Table - 7 (cont)
Unit - 50TJM - 28 - 23 Tons - 50Hz (Standard Motor)
Air Flow Rate
0.2
(CFM)
RPM
KWI
5000
535
1.06
5500
564
1.30
6000
596
1.59
6500
625
1.92
7000
656
2.28
7500
686
2.70
8000
714
3.15
8500
743
3.64
Unit - 50TJM - 28 - 23 Tons - 50Hz (Standard Motor) (cont)
Air Flow Rate
1.2
(CFM)
RPM
KWI
5000
801
2.30
5500
813
2.60
6000
827
2.93
6500
843
3.30
7000
861
3.72
7500
880
4.19
8000
899
4.69
8500
919
5.23
Bold, Italics - Standard Motor and Drive Package
Unit - 50TJM - 28 - 23 Tons - 50Hz (High Efficiency Motor)
Air Flow Rate
0.2
(CFM)
RPM
KWI
5000
535
1.02
5500
564
1.25
6000
596
1.53
6500
625
1.85
7000
656
2.20
7500
686
2.60
8000
714
3.04
8500
743
3.51
Unit - 50TJM - 28 - 23 Tons - 50Hz (High Efficiency Motor) (cont)
Air Flow Rate
1.2
(CFM)
RPM
KWI
5000
801
2.22
5500
813
2.50
6000
827
2.83
6500
843
3.18
7000
861
3.58
7500
880
4.04
8000
899
4.52
8500
919
5.05
Bold , Italics - High Efficiency Motor and Drive Package
Legend:
RPM - Revolutions Per Minute
KWI - Kilo Watts Input to Motor
BHP - Brake Horsepower Input to Fan
CFM - Cubic Feet per Minute
Notes:
1. Do not adjust motor rpm such that motor maximum bhp and/or watts is exceeded at the maximum operatin cfm.
2. Static Pressure (i.e Filters) must be added to external static pressure before entering fan performance table.
3. Interpolation is permissible. Do not extrapolate.
4. Fan performance is based on wet coils, clean filters and casing loses.
5. Extensive motor and drive testing on these units ensures that the full brake horsepower and watts range of the motor can be utilized with confidence. Using
your fan motors up to the watts or bhp rating shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.
6. Bold data shows the range of air flow rate for unit management system, other rpms require field-supplied drive.
7. Use of field-supplied motor may affect wiring size. Contact your Carrier representative for details.
8. Conversion - Bhp to KWI
Bhp X 0.746
KWI=
Motor efficiency
Available External Static Pressure (in. wg)
0.4
BHP
RPM
KWI
BHP
1.21
592
1.27
1.45
1.49
618
1.53
1.75
1.82
643
1.82
2.09
2.19
671
2.16
2.47
2.61
698
2.54
2.91
3.09
726
2.97
3.40
3.61
753
3.43
3.93
4.17
779
3.94
4.51
Available External Static Pressure (in. wg)
1.4
BHP
RPM
KWI
BHP
2.64
849
2.61
2.98
2.97
859
2.90
3.32
3.36
870
3.23
3.70
3.77
884
3.62
4.15
4.25
900
4.05
4.64
4.79
917
4.52
5.18
5.37
935
5.04
5.76
5.99
952
5.59
6.40
Available External Static Pressure (in. wg)
0.4
BHP
RPM
KWI
BHP
1.21
592
1.22
1.45
1.49
618
1.47
1.75
1.82
643
1.76
2.08
2.19
671
2.08
2.47
2.61
698
2.45
2.91
3.09
726
2.87
3.40
3.61
753
3.31
3.93
4.17
779
3.79
4.50
Available External Static Pressure (in. wg)
1.4
BHP
RPM
KWI
BHP
2.64
849
2.51
2.98
2.97
859
2.80
3.32
3.35
870
3.12
3.70
3.77
884
3.49
4.15
4.25
900
3.91
4.64
4.79
917
4.36
5.18
5.37
935
4.85
5.76
5.99
952
5.39
6.40
0.6
RPM
KWI
BHP
RPM
647
1.50
1.71
700
669
1.77
2.03
718
692
2.07
2.37
738
715
2.43
2.78
759
740
2.82
3.22
781
766
3.26
3.73
804
790
3.74
4.28
827
815
4.25
4.87
849
1.6
RPM
KWI
BHP
RPM
898
2.93
3.36
944
904
3.23
3.70
948
913
3.57
4.09
955
924
3.96
4.53
964
939
4.39
5.02
976
954
4.87
5.57
989
969
5.39
6.17
1004
985
5.96
6.82
1017
0.6
RPM
KWI
BHP
RPM
647
1.44
1.71
700
669
1.71
2.02
718
692
2.00
2.37
738
715
2.34
2.78
759
740
2.71
3.22
781
766
3.14
3.73
804
790
3.60
4.28
827
815
4.10
4.86
849
1.6
RPM
KWI
BHP
RPM
898
2.83
3.35
944
904
3.12
3.70
948
913
3.44
4.09
955
924
3.81
4.53
964
939
4.23
5.02
976
954
4.69
5.57
989
969
5.20
6.17
1004
985
5.74
6.82
1017
Page 22
0.8
1.0
KWI
BHP
RPM
KWI
1.75
2.00
753
2.02
2.03
2.32
766
2.29
2.34
2.68
783
2.63
2.70
3.09
801
2.99
3.10
3.55
821
3.40
3.55
4.06
843
3.86
4.04
4.63
864
4.37
4.56
5.22
884
4.89
1.8
2.0
KWI
BHP
RPM
KWI
3.28
3.75
989
3.64
3.58
4.10
990
3.94
3.92
4.48
996
4.28
4.30
4.93
1002
4.67
4.74
5.43
1013
5.11
5.22
5.98
1025
5.60
5.76
6.59
1038
6.14
6.32
7.24
1051
6.71
0.8
1.0
KWI
BHP
RPM
KWI
1.69
2.00
753
1.95
1.96
2.32
766
2.21
2.26
2.68
783
2.53
2.60
3.09
801
2.89
2.99
3.55
821
3.28
3.42
4.06
843
3.72
3.90
4.62
864
4.21
4.40
5.22
884
4.71
1.8
2.0
KWI
BHP
RPM
KWI
3.16
3.75
989
3.51
3.45
4.10
990
3.79
3.77
4.48
996
4.13
4.15
4.92
1002
4.50
4.57
5.43
1013
4.92
5.04
5.98
1025
5.40
5.55
6.59
1038
5.92
6.10
7.24
1051
6.47
BHP
2.31
2.62
3.01
3.43
3.89
4.42
5.00
5.60
BHP
4.17
4.51
4.90
5.34
5.85
6.41
7.03
7.68
BHP
2.31
2.62
3.01
3.43
3.89
4.42
5.00
5.60
BHP
4.17
4.50
4.90
5.34
5.85
6.41
7.03
7.68

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents