21
Table 11 — 50RTP14 Blower Performance Data (cont)
LEGEND
NOTES:
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard
Motor, C = High RPM/Standard Motor, D = Standard RPM/
Large Motor, E = High RPM/Large Motor
2. Unit shipped with standard drive package with drive sheave 2.5
turns open unless otherwise requested. Field adjustment may
be required for specified CFM.
3. ISO/AHRI rating point with standard drive package and drive
sheave open 3.0 turns at .30 ESP.
4. Performance data does not include drive losses and is based
on sea level conditions.
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,
rated at 208 volts for 208-230 volt units.
AIRFLOW
(cfm)
ESP
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
6400
bhp
1.43
1.54
1.66
1.78
1.90
2.05
2.21
2.37
2.52
2.62
2.73
2.83
2.95
3.13
3.28
3.47
3.65
3.76
3.87
3.97
4.08
Sheave/Motor
B
B
B
B
A
A
A
A
A
A
A
C
C
E
E
E
E
E
E
E
E
rpm
571
604
636
664
696
724
752
780
808
832
856
880
904
928
948
972
996
1016 1036 1056 1076
Turns Open
5.5
4.5
3.5
2.5
5.5
4.5
4.0
3.0
2.5
1.5
1.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
6600
bhp
1.55
1.68
1.83
1.96
2.12
2.24
2.36
2.47
2.61
2.74
3.00
3.01
3.17
3.34
3.48
3.66
3.82
3.94
4.06
4.16
4.28
Sheave/Motor
B
B
B
A
A
A
A
A
A
A
D
E
E
E
E
E
E
E
E
E
E
rpm
583
616
648
676
708
736
764
788
816
840
864
888
912
936
956
980
1004 1024 1044 1060 1080
Turns Open
5.0
4.0
3.0
6.0
5.0
4.0
3.5
3.0
2.0
1.5
1.0
5.0
4.5
4.0
3.5
3.0
2.5
2.5
2.0
1.5
1.0
6800
bhp
1.68
1.80
1.94
2.08
2.23
2.37
2.52
2.68
2.79
3.00
3.07
3.10
3.28
3.47
3.63
3.82
3.97
4.11
4.25
4.38
4.52
Sheave/Motor
B
B
B
A
A
A
A
A
A
D
D
E
E
E
E
E
E
E
E
E
E
rpm
600
628
660
692
720
744
772
800
824
848
872
896
920
944
964
988
1008 1028 1048 1068 1088
Turns Open
4.5
3.5
2.5
5.5
4.5
4.0
3.0
2.5
2.0
1.0
1.0
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.5
1.0
7000
bhp
1.79
1.97
2.12
2.3
2.4
2.53
2.65
2.76
2.9
3.10
3.17
3.31
3.50
3.66
3.86
4.05
4.18
4.31
4.44
4.57
4.69
Sheave/Motor
B
B
A
A
A
A
A
A
A
D
E
E
E
E
E
E
E
E
E
E
E
rpm
612
644
672
704
728
756
784
808
832
856
880
904
928
948
972
996
1016 1036 1056 1076 1096
Turns Open
4.0
3.0
6.0
5.0
4.5
3.5
3.0
2.5
1.5
1.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
1.0
bhp —
Brake Horsepower
ESP —
External Static Pressure
