Carrier WeatherMaster 50HC04 Service And Maintenance Instructions page 83

Single package rooftop electric cooling unit with puron (r-410a) refrigerant
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Table AO — Pulley Adjustment (Fan RPM at motor pulley settings)
MOTOR/DRIVE
UNIT
COMBO
Standard Static
04
Medium Static
Standard Static
05
1 PHASE
Medium Static
Standard Static
06
Medium Static
Standard Static*
Medium Static
04
3 PHASE
High Static
Standard Static*
Medium Static*
05
3 PHASE
Medium Static
High Static
Standard Static*
Medium Static
06
3 PHASE
High Static
Standard Static
Medium Static
07
3 PHASE
High Static
Standard Static
Medium Static
08
3 PHASE
High Static
Standard Static
Medium Static
09
3 PHASE
High Static
Standard Static
Medium Static
11
3 PHASE
High Static
Standard Static
Medium Static
12
3 PHASE
High Static
Standard Static
Medium Static
14
3 PHASE
High Static
— Factory settings
* Humidi-MiZer models only
General Fan Performance Notes:
1.
Interpolation is permissible. Do not extrapolate.
2.
External static pressure is the static pressure difference between the return duct and the supply duct plus the static pressure
caused by any FIOPs or accessories.
3.
Tabular data accounts for pressure loss due to clean filters, unit casing, and wet coils. Factory options and accessories can add
static pressure losses.
4.
The Fan Performance tables offer motor/drive recommendations. In cases when two motor/drive combinations would work,
Carrier recommends the lower horsepower option.
APPENDIX C — FAN PERFORMANCE
X13 MULTI-SPEED/TORQUE MOTOR
0
0.5
1
1.5
854
825
795
766
1175
1135
1094
1054
854
825
795
766
1175
1135
1094
1054
1175
1135
1094
1054
1466
1423
1380
1337
854
825
795
766
1175
1135
1094
1054
1466
1423
1380
1337
854
825
795
766
1175
1135
1094
1054
1303
1265
1226
1188
1550
1516
1482
1447
1175
1135
1094
1054
1466
1423
1380
1337
1550
1525
1501
1476
747
721
695
670
949
927
906
884
1102
1083
1063
1044
733
712
690
669
936
911
887
862
1084
1059
1035
1010
733
712
690
669
936
911
887
862
1084
1059
1035
1010
838
813
789
764
1084
1059
1035
1010
1240
1218
1196
1175
838
813
789
764
1084
1059
1035
1010
1240
1218
1196
1175
609
592
575
558
778
761
744
727
955
937
919
901
MOTOR PULLEY TURNS OPEN
2
2.5
3
736
707
678
1013
973
932
736
707
678
1013
973
932
1013
973
932
1294
1251
1207
736
707
678
1013
973
932
1294
1251
1207
736
707
678
1013
973
932
1150
1112
1073
1413
1379
1345
1013
973
932
1294
1251
1207
1451
1427
1402
644
618
592
863
841
819
1025
1006
986
647
626
604
838
813
788
986
961
936
647
626
604
838
813
788
986
961
936
739
715
690
986
961
936
1153
1131
1109
739
715
690
986
961
936
1153
1131
1109
541
525
508
710
694
677
883
866
848
83
3.5
4
4.5
648
619
589
560
892
851
811
770
648
619
589
560
892
851
811
770
892
851
811
770
1164
1121
1078
1035
648
619
589
560
892
851
811
770
1164
1121
1078
1035
648
619
589
560
892
851
811
770
1035
997
958
920
1311
1276
1242
1208
892
851
811
770
1164
1121
1078
1035
1377
1352
1328
1303
566
541
515
489
798
776
755
733
967
948
928
909
583
561
540
518
764
739
715
690
912
887
863
838
583
561
540
518
764
739
715
690
912
887
863
838
665
640
616
591
912
887
863
838
1087
1066
1044
1022
665
640
616
591
912
887
863
838
1087
1066
1044
1022
491
474
457
440
660
643
626
609
830
812
794
776
5

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