Bryant DURAPAC PLUS 581A - Manual (Page 7)

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Table 2 — Fan Motor and Drive Data — Vertical Supply/Return
LEGEND
581A
210 240 300
208/230
and 460 v
575 v
208/230
and 460 v
575 v
208/230
and 460 v
575 v
LOW RANGE
Motor Hp 3.7 3 5 5 7.5 7.5
Motor Nominal Rpm 1725 1725 1745 1745 1745 1745
Maximum Continuous Bhp 4.25 3.45 5.75 5.75 8.63 8.63
Maximum Continuous Watts 3698 3149 4900 4900 7267 7267
Motor Frame Size 56HZ 56HZ S184T 184T S213T S213T
Motor Shaft Diameter (in.) 7 /
8
7 /
8
1 1 /
8
1 1 /
8
1 3 /
8
1 3 /
8
Fan Rpm Range 647-886 810-1072 949-1206 949-1206 941-1176 941-1176
Motor Pulley Min. Pitch Diameter (in.) 2.7 3.1 3.7 3.7 4.8 4.8
Motor Pulley Max. Pitch Diameter (in.) 3.7 4.1 4.7 4.7 6.0 6.0
Blower Pulley Pitch Diameter (in.) 7.2 6.6 6.8 6.8 8.9 8.9
Blower Pulley Shaft Diameter (in.) 1.1875 1.1875 1.1875 1.1875 1.1875 1.1875
Blower Pulley Type Fixed Fixed Fixed Fixed Fixed Fixed
Pulley Center Line Distance (in.) 11.293-13.544 11.286-14.475 9.81-13.055 9.81-13.055 9.025-12.179 9.025-12.179
Belt, Quantity...Type...Length (in.) 1...BX...38 1...BX...38 1...BX...38 1...BX...38 1...BX...42 1...BX...42
Speed Change Per Turn — Moveable Pulley (rpm) 48 52 51 51 47 47
Moveable Pulley Maximum Full Turns 6 6 6 6 6 6
Factory Speed Setting (rpm) 767 941 1078 1078 1059 1059
HIGH RANGE
Motor Hp
5 5 7.5 7.5 10 10
Motor Nominal Rpm 1745 1745 1745 1745 1745 1745
Maximum Continuous Bhp 5.75 5.75 8.63 8.63 11.5 11.5
Maximum Continuous Watts 4900 4900 7267 7267 9582 9582
Motor Frame Size S184T 184T S213T S213T S215T S215T
Motor Shaft Diameter (in.) 1 1 /
8
1 1 /
8
1 3 /
8
1 3 /
8
1 3 /
8
1 3 /
8
Fan Rpm Range 897-1139 873-1108 941-1176 941-1176 1014-1297 1014-1297
Motor Pulley Min. Pitch Diameter (in.) 3.7 3.7 4.8 4.8 4.3 4.3
Motor Pulley Max. Pitch Diameter (in.) 4.7 4.7 6.0 6.0 5.5 5.5
Blower Pulley Pitch Diameter (in.) 7.2 7.4 8.9 8.9 7.4 7.4
Blower Pulley Shaft Diameter (in.) 1.1875 1.1875 1.1875 1.1875 1.1875 1.1875
Blower Pulley Type Fixed Fixed Fixed Fixed Fixed Fixed
Pulley Center Line Distance (in.) 9.81-13.055 9.81-13.055 9.025-12.179 9.025-12.179 9.025- 2.179 9.025-12.179
Belt, Quantity...Type...Length (in.) 1...BX...38 1...BX...38 1...BX...42 1...BX...42 2...BX...38 2...BX...38
Speed Change per Turn — Moveable Pulley (rpm) 48 47 47 47 57 57
Moveable Pulley Maximum Full Turns 6 6 6 6 6 6
Factory Speed Setting (rpm) 1018 991 1059 1059 1156 1156
Bhp — Brake Horsepower