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11
Table 9 — Fan Performance — 50A2,A3,A6,A7020 Units
Table 10 — Fan Performance — 50A2,A3,A6,A7025-030 Units
LEGEND
Bhp —
Brake Horsepower
edb —
Entering Dry Bulb
ewb —
Entering Wet Bulb
NOTES:
1. Fan performance is based on wet coils, economizer, roof curb, cabinet losses,
and clean 2-in. filters.
2. Conversion — Bhp to watts:
3. Variable air volume units will operate down to 70 cfm/ton. Performance at 70
cfm/ton is limited to unloaded operation and may be additionally limited by edb
and ewb conditions and Humidi-MiZer operation.
AIRFLOW
(CFM)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
4,000
311
0.54
390
0.71
457
0.88
515
1.05
567
1.21
613
1.38
656
1.55
696
1.71
733
1.88
768
2.04
5,000
347
0.84
417
1.02
480
1.21
536
1.40
587
1.59
633
1.78
676
1.97
716
2.16
753
2.34
788
2.52
6,000
387
1.25
450
1.43
507
1.63
560
1.84
609
2.05
654
2.26
696
2.47
735
2.68
773
2.88
808
3.09
7,000
430
1.77
488
1.96
540
2.17
588
2.38
634
2.61
677
2.83
718
3.06
756
3.29
793
3.51
828
3.74
7,500
452
2.07
507
2.27
557
2.48
604
2.70
648
2.93
690
3.16
730
3.40
768
3.63
804
3.87
839
4.10
8,000
474
2.41
528
2.61
576
2.82
620
3.04
663
3.28
704
3.52
743
3.76
780
4.00
816
4.24
850
4.48
9,000
519
3.19
570
3.39
614
3.60
656
3.83
696
4.07
734
4.32
771
4.57
806
4.82
840
5.08
873
5.34
10,000
565
4.10
613
4.31
655
4.53
694
4.76
731
5.00
767
5.26
802
5.51
835
5.78
868
6.04
900
6.31
11,000
611
5.17
657
5.37
697
5.60
734
5.84
769
6.08
803
6.34
836
6.60
868
6.87
899
7.15
929
7.42
12,000
658
6.39
702
6.60
741
6.83
776
7.07
809
7.32
841
7.58
872
7.85
902
8.12
932
8.40
960
8.68
12,500
681
7.06
725
7.27
763
7.50
797
7.74
830
8.00
861
8.26
891
8.53
920
8.80
949
9.08
977
9.37
13,000
705
7.77
748
7.98
785
8.21
819
8.46
850
8.71
881
8.98
910
9.25
939
9.53
967
9.81
994
10.10
AIRFLOW
(CFM)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
4,000
802
2.21
833
2.38
864
2.55
893
2.71
921
2.88
949
3.06
975
3.23
1001
3.40
1026
3.58
1050
3.75
5,000
822
2.71
854
2.89
885
3.08
914
3.26
943
3.45
970
3.64
997
3.82
1023
4.01
1048
4.20
1072
4.39
6,000
842
3.29
874
3.50
905
3.70
934
3.90
963
4.10
991
4.31
1017
4.51
1043
4.71
1069
4.91
1093
5.12
7,000
862
3.96
894
4.19
924
4.41
954
4.63
983
4.85
1010
5.07
1037
5.29
1063
5.51
1089
5.72
1113
5.94
7,500
872
4.33
904
4.56
934
4.79
964
5.02
993
5.25
1020
5.48
1047
5.71
1073
5.94
1099
6.16
1123
6.39
8,000
883
4.73
914
4.97
945
5.21
974
5.45
1003
5.68
1030
5.92
1057
6.16
1083
6.39
1108
6.63
1133
6.87
9,000
905
5.60
936
5.85
966
6.11
995
6.37
1023
6.62
1051
6.88
1077
7.13
1103
7.38
1129
7.64
1153
7.89
10,000
931
6.58
961
6.85
990
7.13
1018
7.40
1046
7.67
1073
7.94
1099
8.21
1124
8.48
1149
8.75
1174
9.02
11,000
958
7.70
987
7.99
1015
8.27
1043
8.55
1070
8.84
1096
9.12
1122
9.41
1147
9.69
1171
9.98
1195
10.26
12,000
989
8.97
1016
9.26
1043
9.55
1070
9.85
1096
10.14
1121
10.44
1146
10.73
1171
11.03
1195
11.33
—
—
12,500
1005
9.66
1032
9.95
1058
10.25
1084
10.55
1110
10.85
1135
11.15
1159
11.45
1183
11.75
—
—
—
—
13,000
1021
10.39
1048
10.69
1074
10.99
1099
11.29
1124
11.59
1149
11.90
1173
12.20
1197
12.51
—
—
—
—
AIRFLOW
(CFM)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
4,000
314
0.54
394
0.72
460
0.89
517
1.05
569
1.22
615
1.39
658
1.55
697
1.72
734
1.88
769
2.05
5,000
352
0.85
422
1.03
484
1.22
540
1.42
590
1.61
636
1.79
678
1.98
718
2.17
755
2.35
791
2.54
6,000
394
1.26
456
1.45
513
1.65
565
1.86
613
2.07
658
2.28
700
2.49
739
2.70
776
2.90
811
3.11
7,000
438
1.79
495
1.98
546
2.19
594
2.41
640
2.64
682
2.86
723
3.09
761
3.32
798
3.54
833
3.77
8,000
483
2.44
536
2.64
583
2.85
628
3.08
670
3.32
710
3.55
749
3.80
786
4.04
821
4.28
855
4.52
9,000
530
3.23
579
3.43
623
3.65
664
3.88
704
4.12
741
4.37
778
4.62
813
4.88
847
5.13
880
5.39
10,000
577
4.15
624
4.36
665
4.58
703
4.82
740
5.06
776
5.32
810
5.58
843
5.84
876
6.11
907
6.38
11,000
625
5.22
669
5.44
708
5.67
744
5.91
779
6.16
813
6.41
845
6.68
877
6.95
907
7.22
937
7.50
12,000
674
6.45
715
6.67
753
6.90
787
7.15
820
7.40
851
7.67
882
7.93
912
8.21
941
8.49
970
8.78
13,000
722
7.85
762
8.07
798
8.30
831
8.55
862
8.81
892
9.08
921
9.35
950
9.63
977
9.92
1005
10.21
14,000
771
9.41
810
9.64
844
9.88
875
10.13
905
10.39
934
10.66
962
10.94
989
11.22
1015
11.51
1041
11.81
15,000
821
11.15
857
11.38
890
11.62
921
11.88
949
12.14
977
12.42
1004
12.70
1030
12.99
1055
13.28
1080
13.58
AIRFLOW
(CFM)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
4,000
803
2.22
835
2.38
865
2.55
894
2.72
923
2.89
950
3.06
976
3.24
1002
3.41
1027
3.58
1051
3.76
5,000
824
2.72
856
2.91
887
3.09
916
3.28
945
3.46
972
3.65
999
3.83
1024
4.02
1049
4.21
1074
4.40
6,000
845
3.31
877
3.52
908
3.72
937
3.92
966
4.12
993
4.32
1020
4.53
1046
4.73
1071
4.93
1096
5.14
7,000
866
3.99
898
4.21
928
4.43
958
4.66
986
4.88
1014
5.10
1041
5.31
1067
5.53
1092
5.75
1116
5.97
8,000
888
4.77
919
5.01
950
5.25
979
5.49
1007
5.72
1035
5.96
1061
6.20
1087
6.43
1113
6.67
1137
6.90
9,000
912
5.65
942
5.90
972
6.16
1001
6.42
1029
6.67
1056
6.93
1083
7.18
1108
7.43
1134
7.69
1158
7.94
10,000
938
6.65
968
6.92
997
7.19
1025
7.46
1052
7.73
1079
8.00
1105
8.27
1130
8.54
1155
8.81
1180
9.08
11,000
967
7.78
995
8.07
1023
8.35
1051
8.63
1077
8.92
1103
9.20
1129
9.49
1154
9.77
1178
10.06
—
—
12,000
998
9.07
1025
9.35
1052
9.65
1078
9.94
1104
10.24
1130
10.54
1154
10.83
1179
11.13
—
—
—
—
13,000
1031
10.50
1058
10.80
1083
11.10
1109
11.40
1133
11.71
1158
12.01
1182
12.32
—
—
—
—
—
—
14,000
1067
12.10
1092
12.41
1117
12.71
1141
13.02
1165
13.33
1188
13.65
—
—
—
—
—
—
—
—
15,000
1104
13.88
1128
14.19
1152
14.50
1175
14.81
1198
15.13
—
—
—
—
—
—
—
—
—
—
Watts =
Bhp x 746
Motor efficiency
Summary of Contents for WEATHERMAKER 48A2020
Page 112: ...112 Fig 20 Typical Main Control Box Wiring Schematic 48 50A Units ...
Page 113: ...113 Fig 21 Typical Auxiliary Control Box Wiring Schematic ...
Page 114: ...114 Fig 22 Typical 2 Stage Gas Heat Wiring Schematic Size 060 Units Shown ...
Page 115: ...115 Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown TO NEXT PAGE ...
Page 116: ...116 Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown cont ...
Page 117: ...117 Fig 24 Typical Electric Heat Control Schematic 50 Series Size 060 Units Shown ...
Page 118: ...118 Fig 25 Typical Controls Option Wiring Schematic SW1 SW2 OR DEHUMIDIFY SWITCH ...
Page 119: ...119 Fig 26 Typical Power Schematic 48 50A2 A3 A4 A5 060 Unit Shown ...
Page 120: ...120 Fig 27 Typical Power Schematic of Greenspeed Low Ambient Option 48 50A 060 Unit Shown ...
Page 121: ...121 Fig 28 Typical Small Chassis Component Location Size 020 035 Units ...
Page 122: ...122 Fig 29 Typical Large Chassis Component Locations Size 040 060 Units ...
Page 185: ...185 APPENDIX C VFD INFORMATION cont Fig F Internal Enclosure Fan Replacement A48 7716 ...