ELECTRICAL DATA (cont)
| NOMINAL | VOLTAGE | COMPRESSOR |
|
| COMBUSTION | POWER | MINIMUM UNIT | |||||||
UNIT | OFM | IFM | DISCONNECT | ||||||||||||
VOLTAGE | RANGE |
| (each) | FAN MOTOR | SUPPLY | ||||||||||
581B |
|
|
|
| SIZE* | ||||||||||
|
|
|
|
|
|
|
|
|
|
| |||||
| Min | Max | RLA |
| LRA | FLA | FLA | RLA | MCA | MOCP† | FLA |
| LRA | ||
|
|
|
| ||||||||||||
| 187 | 254 | 10.3 |
| 77.0 | 0.7 | 5.8 | 0.6 | 19.4/19.4 | 25/25 | 19/19 |
| 120/120 | ||
036 | 414 | 508 | 5.1 |
| 39.0 | 0.4 | 2.6 | 0.3 | 9.4 | 15 | 9 |
| 60 | ||
| 518 | 632 | 4.2 |
| 31.0 | 0.4 | 2.6 | 0.3 | 7.7 | 15 | 8 |
| 48 | ||
| 187 | 254 | 13.5 |
| 99.0 | 0.7 | 5.8 | 0.6 | 23.4/23.4 | 30/30 | 23/23 |
| 142/142 | ||
048 | 414 | 508 | 7.4 |
| 49.5 | 0.4 | 2.6 | 0.3 | 12.3 | 15 | 12 |
| 71 | ||
| 518 | 632 | 5.8 |
| 40.0 | 0.4 | 2.6 | 0.3 | 9.7 | 15 | 9 |
| 57 | ||
| 187 | 254 | 17.3 |
| 123.0 | 1.5 | 7.5 | 0.6 | 30.6/30.6 | 35/35 | 30/30 |
| 187/187 | ||
060 | 414 | 508 | 9.0 |
| 62.0 | 0.8 | 3.4 | 0.3 | 15.5 | 20 | 15 |
| 94 | ||
| 518 | 632 | 7.1 |
| 50.0 | 0.8 | 3.4 | 0.3 | 12.2 | 15 | 12 |
| 76 | ||
| 187 | 254 | 20.5 |
| 156.0 | 1.4 | 7.5 | 0.6 | 30.6/30.6 | 35/35 | 30/30 |
| 187/187 | ||
072 | 414 | 508 | 9.6 |
| 70.0 | 0.6 | 3.4 | 0.3 | 15.5 | 20 | 15 |
| 94 | ||
| 518 | 632 | 7.7 |
| 56.0 | 0.6 | 3.4 | 0.3 | 12.2 | 15 | 12 |
| 76 |
|
| NOMINAL | VOLTAGE | COMPRESSOR |
|
| COMBUSTION | POWER | MINIMUM UNIT | ||||||
UNIT | OFM | IFM | DISCONNECT | ||||||||||||
VOLTAGE | RANGE |
| (each) | FAN MOTOR | SUPPLY | ||||||||||
581B |
|
|
|
| SIZE* | ||||||||||
|
|
|
|
|
|
|
|
|
|
| |||||
|
| Min | Max | RLA |
| LRA | FLA | FLA | RLA | MCA | MOCP† | FLA | LRA | ||
|
|
|
| ||||||||||||
|
| 187 | 254 | 10.3 |
| 77.0 | 0.7 | 5.8 | 0.6 | 25.4/25.4 | 30/30 | 25 | 124/124 | ||
036 |
| 414 | 508 | 5.1 |
| 39.0 | 0.4 | 2.6 | 0.3 | 12.1 | 15 | 12 | 63 | ||
|
| 518 | 632 | 4.2 |
| 31.0 | 0.4 | 2.6 | 0.3 | 9.8 | 15 | 10 | 50 | ||
|
| 187 | 254 | 13.5 |
| 99.0 | 0.7 | 5.8 | 0.6 | 29.4/29.4 | 35/35 | 29 | 146/146 | ||
048 |
| 414 | 508 | 7.4 |
| 49.5 | 0.4 | 2.6 | 0.3 | 15.0 | 20 | 14 | 73 | ||
|
| 518 | 632 | 5.8 |
| 40.0 | 0.4 | 2.6 | 0.3 | 11.8 | 15 | 11 | 59 | ||
|
| 187 | 254 | 17.3 |
| 123.0 | 1.5 | 7.5 | 0.6 | 36.6/36.6 | 40/40 | 36 | 192/192 | ||
060 |
| 414 | 508 | 9.0 |
| 62.0 | 0.8 | 3.4 | 0.3 | 18.2 | 20 | 18 | 96 | ||
|
| 518 | 632 | 7.1 |
| 50.0 | 0.8 | 3.4 | 0.3 | 14.4 | 20 | 14 | 77 | ||
|
| 187 | 254 | 20.5 |
| 156.0 | 1.4 | 7.5 | 0.6 | 40.5/40.5 | 45/45 | 39 | 224/224 | ||
072 |
| 414 | 508 | 9.6 |
| 70.0 | 0.6 | 3.4 | 0.3 | 18.7 | 25 | 18 | 104 | ||
|
| 518 | 632 | 7.7 |
| 56.0 | 0.6 | 3.4 | 0.3 | 15.0 | 20 | 15 | 89 |
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
UL — Underwriters’ Laboratories
*Used to determine minimum disconnect per NEC.
†Fuse or HACR circuit breaker.
NOTES:
1.In compliance with NEC requirements for multimotor and combina- tion load equipment (refer to NEC Articles 430 and 440), the overcur- rent protective device for the unit shall be fuse or HACR breaker. UL, Canada units may be fuse or circuit breaker.
2.Unbalanced
Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percent of voltage imbalance.
= 100 x | max voltage deviation from average voltage | |
average voltage | ||
|
Example: Supply voltage is
AB = 452 v
BC = 464 v
AC = 455 v
452 + 464 + 455
Average Voltage =
3
1371
=
3
= 457
Determine maximum deviation from average voltage. (AB) 457 – 452 = 5 v
(BC) 464 – 457 = 7 v (AC) 457 – 455 = 2 v
Maximum deviation is 7 v.
Determine percent of voltage imbalance.
% Voltage Imbalance = 100 x |
| 7 | |
457 | |||
|
= 1.53%
This amount of phase imbalance is satisfactory as it is below the maxi- mum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately.
46