Bryant 581A - Manual (Page 19)

FAN RPM AT MOTOR PULLEY SETTINGS*
UNIT
581A MOTOR PULLEY TURNS OPEN
0 1 ⁄ 2 1 1 1 ⁄ 2 2 2 1 ⁄ 2 3 3 1 ⁄ 2 4 4 1 ⁄ 2 5 5 1 ⁄ 2 6
155 1526 1492 1459 1426 1393 1360 1326 1293 1260 1227 1194 — —
180 1494 1472 1451 1430 1408 1387 1366 1345 1323 1302 1281 1259 1238
240 † † 1536 1515 1493 1472 1451 1430 1408 1387 1366 1344 1323
*Approximate fan rpm shown.
†Do not run this fan at less than 1 turn open, as it will exceed the maximum
allowable rpm of 1550.
ELECTRICAL DATA
UNIT
581A
NOMINAL
VOLTAGE
(3 Ph,
60 Hz)
VOLTAGE
RANGE
COMPRESSOR
OFM IFM
POWER
EXHAUST
COMBUSTION
FAN MOTOR
POWER SUPPLY
DISCONNECT
SIZE No. 1 No. 2
Min Max RLA LRA RLA LRA Qty
FLA
(ea)
LRA
(ea)
Hp FLA LRA FLA LRA FLA MCA MOCP* FLA LRA
155
208/230 187 254 39.7 228 — — 3 1.7 3.8 3.7 10.5/10.5 84.5/84.5
— — 0.57 65/65 100/100 64/64 324/324
4.6 18.8 0.57 70/70 100/100 70/70 343/343
460 414 508 19.9 114 — — 3 0.8 1.9 3.7 4.8 42.3
— — 0.30 32 50 32 162
2.3 6.0 0.30 34 50 34 168
180
208/230 187 254 28.2 160 28.2 160 3 1.7 24.8 5 15.8/15.8 105/91
— — 0.57 84/84 110/100 90/90 499/485
4.6 18.8 0.57 89/89 110/110 95/95 518/504
460 414 508 14.1 80 14.1 80 3 0.8 10.8 5 7.9 46
— — 0.30 42 50 45 238
2.3 6.0 0.30 44 50 47 244
240
208/230 187 254 35.6 198 35.6 198 2 5.5 24.8 10 28.0/28.0 193/168
— — 0.57 119/119 150/150 127/127 639/614
4.6 18.8 0.57 124/124 150/150 133/133 657/632
460 414 508 17.8 99 17.8 99 2 2.8 10.8 10 14.6 84
— — 0.30 60 70 65 304
2.3 6.0 0.30 63 80 67 310
LEGEND
FLA — Full Load Amps
HACR — Heating, Air Conditioning and Refrigeration
IFM — Indoor (Evaporator) Fan Motor
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
NEC
— National Electrical Code
OFM — Outdoor (Condenser) Fan Motor
RLA — Rated Load Amps
*This is the maximum size permissible; smaller fuse size may be used where con-
ditions permit.
NOTES: In compliance with NEC requirements for multimotor and combination
load equipment (refer to NEC Articles 430 and 440), the overcurrent protective de-
vice for the unit shall be fuse or HACR breaker. The Canadian units may be fuse
or circuit breaker.
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