Table 2A — Electrical Data (Units Without Optional Convenience Outlet)
UNIT | NOMINAL | VOLTAGE |
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| COMPRESSOR |
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| OFM |
| ELECTRIC |
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| IFM |
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| POWER | POWER |
| DISCONNECT | ||||||||||
SIZE | VOLTAGE | RANGE | No. 1 |
| No. 2 | No. 3 |
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| HEAT |
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| EXHAUST | SUPPLY |
| SIZE | |||||||||||
50HG | (3 Ph, 60 Hz) | Min | Max | RLA | LRA |
| RLA | LRA | RLA | LRA | Qty | Hp |
| FLA | kW | FLA | Hp | FLA | Qty |
| Hp | FLA | MCA | MOCP* | FLA | |||||
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| 3.7 | 10.6/ | 9.6 | — |
| — | — | 60/ 59 | 70/ 70 | 70/ 70 | |||
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| 2 |
| 1.0 | 5.9 | 72/ | 71 | 90/ | 80 | 80/ | 80 | |||
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| 5.0 | 16.7/15.2 | — |
| — | — | 66/ 64 | 80/ 80 | 80/ 70 | ||||||
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| 2 |
| 1.0 | 5.9 | 78/ | 76 | 90/ | 90 | 90/ | 90 | |||
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| 3.7 | 10.6/ | 9.6 | — |
| — | — | 60/ 60 | 70/ 70 | 70/ 70 | |||
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| 12/16 | 33/ | 38 | 2 |
| 1.0 | 5.9 | 72/ | 74 | 90/ | 80 | 80/ | 80 | |||
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| 5.0 | 16.7/15.2 | — |
| — | — | 66/ 67 | 80/ 80 | 80/ 70 | |||||||
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| 208/230 | 187 | 253 | 19.2 | 146.0 |
| 19.2 | 146.0 | — | — | 4.0 | 1/4 |
| 1.5 |
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| 1.0 | 5.9 | 78/ | 81 | 90/ | 90 | 90/ | 90 | |||
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| 3.7 | 10.6 /9.6 | — |
| — | — | 78/ 87 | 80/ 90 | 80/ 90 | ||||||||||||||||
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| 19/25 | 52/ | 60 | 2 |
| 1.0 | 5.9 | 93/102 | 100/110 | 90/100 | ||||||
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| 5.0 | 16.7/15.2 | — |
| — | — | 86/ 94 | 90/100 | 80/ 90 | |||||||
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| 2 |
| 1.0 | 5.9 | 101/109 | 110/110 | 100/110 | ||||||
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| 3.7 | 10.6/ | 9.6 | — |
| — | — | 143/132 | 150/150 | 150/150 | |||
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| 38/50 | 104/120 | 2 |
| 1.0 | 5.9 | 158/147 | 175/150 | 150/175 | |||||||
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| 5.0 | 16.7/15.2 | — |
| — | — | 151/139 | 175/150 | 150/175 | |||||||
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| 2 |
| 1.0 | 5.9 | 166/154 | 175/175 | 175/175 | ||||||
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| 3.7 | 4.8 |
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| 1.0 | 3.1 | 35 |
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| 5.0 | 7.6 |
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| 1.0 | 3.1 | 38 |
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| 3.7 | 4.8 |
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| 15 | 18 |
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| 1.0 | 3.1 | 36 |
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| 5.0 | 7.6 |
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014 | 460 | 414 | 506 | 9.5 | 73.0 |
| 9.5 | 73.0 | — | — | 4.0 | 1/4 |
| 0.7 |
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| 1.0 | 3.1 | 40 |
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| 3.7 | 4.8 |
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| 25 | 30 |
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| 1.0 | 3.1 | 51 |
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| 5.0 | 7.6 |
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| 1.0 | 3.1 | 55 |
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| 3.7 | 4.8 |
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| 50 | 60 |
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| 1.0 | 3.1 | 74 |
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| 5.0 | 7.6 |
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| 1.0 | 3.1 | 77 |
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| 3.0 | 3.9 |
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| 1.0 | 3.1 | 30 |
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| 5.0 | 6.1 |
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| 1.0 | 3.1 | 32 |
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| 3.0 | 3.9 |
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| 16 | 15 |
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| 1.0 | 3.1 | 31 |
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| 5.0 | 6.1 |
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| 575 | 518 | 633 | 7.6 | 58.4 |
| 7.6 | 58.4 | — | — | 4.0 | 1/4 |
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| 1.0 | 3.1 | 34 |
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| 3.0 | 3.9 |
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| 25 | 24 |
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| 5.0 | 6.1 |
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| 1.0 | 3.1 | 45 |
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| 3.0 | 3.9 |
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| 48 | 46 |
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| 1.0 | 3.1 | 70 |
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| 5.0 | 6.1 |
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| 1.0 | 3.1 | 73 |
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LEGEND AND NOTES FOR TABLES 2A AND 2B
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| LEGEND | |
FLA | — Full Load Amps | MCA | — Minimum Circuit Amps |
HACR — Heating, Air Conditioning and | MOCP — Maximum Overcurrent Protection | ||
| Refrigeration | NEC | — National Electrical Code |
IFM | — Indoor (Evaporator) Fan Motor | OFM | — Outdoor (Condenser) Fan Motor |
LRA | — Locked Rotor Amps | RLA | — Rated Load Amps |
*Fuse or HACR circuit breaker.
†208/230 v
NOTES:
1.In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. Canadian units may be fuse or circuit breaker.
2.Unbalanced 3-Phase Supply Voltage
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.
% Voltage Imbalance
max voltage deviation from average voltage
= 100 x
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. 7
%Voltage Imbalance = 100 x 457
=1.53%
This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately.
3.The
4.The convenience outlet full load amps (FLA) are 5, 3 and 3 for 208/230, 460,
5.The FLA load amps provided in the table for electric heaters are based on 208/240, 480 and 600 v.
6. MCA calculation for
10