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Table 8 — Fan Rpm at Motor Pulley Settings*
*Approximate fan rpm shown.
†Indicates standard motor and drive package.
**Indicates alternate motor and drive package.
††Indicates high-static motor and drive package.
Table 9 — Evaporator-Fan Motor Efficiency
NOTE: All indoor-fan motors 5 hp and larger meet the minimum effi-
ciency requirements as established by the Energy Policy Act of 1992
(EPACT) effective October 24, 1997.
UNIT 580F
MOTOR PULLEY TURNS OPEN
0
1
/
2
11
1
/
2
22
1
/
2
33
1
/
2
44
1
/
2
55
1
/
2
6
090,091† 840 815 790 765 740 715 690 665 635 615 590 — —
090,091** 935 910 885 860 835 810 785 760 735 710 685 — —
090,091†† 1080 1025 1007 988 970 952 933 915 897 878 860 — —
102,103† 935 910 885 860 835 810 785 760 735 710 685 — —
102,103†† 1080 1025 1007 988 970 952 933 915 897 878 860 — —
120,121† 935 910 885 860 835 810 785 760 735 710 685 — —
120,121** 1085 1060 1035 1010 985 960 935 910 885 860 835 — —
120,121†† 1130 1112 1087 1062 1037 1012 987 962 937 912 887 862 830
150,151† 1080 1060 1035 1015 990 970 950 925 905 880 860 — —
150,151** 1130 1112 1087 1062 1037 1012 987 962 937 912 887 862 830
UNIT
580F
MOTOR EFFICIENCY
(%)
090-121 80
150,151 87
Fig. 34 — Typical Belt-Drive Motor Mounting
for Sizes 120-151
Fig. 35 — Evaporator-Fan Pulley Adjustment