Bryant 580F Power Exhaust Electrical Data MCA Mocp, Unbalanced 3-Phase Supply Voltage

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LEGEND AND NOTES FOR TABLES 2A AND 2B

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

*The values listed in this table do not include power exhaust. See table below for power exhaust requirements.

†Used to determine minimum disconnect per NEC. **Fuse or HACR circuit breaker.

††Fuse only.

***Compressor no. 1 data indicated in table.

208/230-3-60: Compressor no. 2 RLA is 14.1 amps and LRA is 105 amps.

460-3-60: Compressor no. 2 RLA is 7.1 amps and LRA is 55 amps.

575-3-60: Compressor no. 2 RLA is 6.4 amps and LRA is 40 amps.

POWER EXHAUST ELECTRICAL DATA

POWER EXHAUST

MCA

MCA

MCA

MOCP

(for separate

PART NO.

(230 v)

(460 v)

(575 v)

power source)

CRPWREXH021A00

N/A

0.9

N/A

15

CRPWREXH022A00

3.3

N/A

1.32

15

CRPWREXH023A00

N/A

1.8

N/A

15

CRPWREXH024A00

1.6

N/A

0.64

15

CRPWREXH025A00

N/A

0.9

N/A

15

CRPWREXH026A00

3.3

N/A

1.32

15

CRPWREXH027A00

N/A

1.8

N/A

15

CRPWREXH028A00

1.7

N/A

0.68

15

CRPWREXH029A00

N/A

1.0

N/A

15

CRPWREXH030A00

1.6

N/A

0.64

15

N/A — Not available

NOTE: If a single power source is to be used, size wire to include power exhaust MCA and MOCP. Must be in accordance with NEC or local codes.

Check MCA and MOCP when power exhaust is powered through the unit. Determine the new MCA including the power exhaust using the fol- lowing formula:

MCA New = MCA unit only + MCA of Power Exhaust

For example, using a 580FPV090 unit with MCA = 40.1 and MOCP

=45, with CRPWREXH030A00 power exhaust. MCA New = 40.1 amps + 1.6 amps = 41.7 amps

If the new MCA does not exceed the published MOCP, then MOCP would not change. The MOCP in this example is 45 amps and the MCA New is below 45; therefore the MOCP is acceptable. If “MCA New” is larger than the published MOCP, raise the MOCP to the next larger size. For separate power, the MOCP for the power exhaust will be 15 amps per NEC.

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. 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

= 100 x

max voltage deviation from average voltage

average voltage

 

Example: Supply voltage is 460-3-60.

AB = 452 v BC = 464 v AC = 455 v

Average Voltage = 452 + 464 + 455 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 maximum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately.

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Contents Safety Considerations Important Read Before InstallingContents InstallationBase Unit Dimensions 580F090,102,120,150 Base Unit Dimensions 580F091,103,121,151 Slab Mount Horizontal Units Only III. Install External Trap for CONDEN- Sate DrainAlternate Unit Support II. Field Fabricate DuctworkCRBTMPWR004A01 CRBTMPWR002A01CRBTMPWR003A01 CRRFCURB003A01Unit Leveling Tolerances Operating Dimensions Unit Weight Physical Data 580F090, 102, 120, 150 Units MED Furnace SectionLOW High091 103 121 151 Nominal Capacity tons 091 103 121 151 Field Power Supply Install Flue HoodVI. Install GAS Piping Field Control WiringHeat Anticipator Settings Electrical Data Without Convenience OutletPower Exhaust Electrical Data MCA Mocp Unbalanced 3-Phase Supply VoltageRLA LRA Electrical Data With Convenience OutletVoltage Type FLA FAN Motor MCA Mocp LRAIFC NECWith Hood Attached VIII. Adjust FACTORY-INSTALLED OptionsManual Outdoor-Air Damper ScrewsBracket Optional EconoMi$er+Hood BOX ORH OATIAQ IarhThermostats EconoMi$er+ Controller WiringDamper Movement Supply Air Temperature SAT Sensor Provided EconoMi$er+ Field-Installed AccessoriesOutdoor Air Temperature OAT Sensor Provided Return Air Temperature RAT SensorVertical ECONOMI$ER+ 3 to 12 1/2 TON Units Outdoor Air Humidity SensorIndoor Air Humidity Sensor Temperature Resistance Range Resolution Low HighRemote Potentiometer Occupied Minimum Position Power ExhaustRemote EconoMi$er+ Enable Control CO2 Sensor Configuration Demand Ventilation ControlCO2 Sensor* Standard Settings IX. Adjust EVAPORATOR-FAN SpeedEvaporator-Fan Motor Efficiency Unit Motor EfficiencyUnit EVAPORATOR-FAN Maximum Acceptable Evaporator-Fan Motor PerformanceGeneral Notes for FAN Performance Data Tables Continuous BHP2400 535 584 2250 513 5052300 521 531 2500 551 642802 684 713 665 940741 671 972 8661293 802 1566 2500 551 642 1187 786 1453 2300 521 5311222 791 1489 2400 535 584 866 6964000 38003900 4100 4200 42503900 777 1974 3800 761 18422156 2296942 1323 993 1524 3300 962 1373 3100978 1447 3200 958 1400 1008 1604 34003200 766 773 829 947 3000 726 656 793 8223100 746 713 811 883 3300 786 836Airflow 3900 760 1460 819 1676 3700 728 1266 789 1473 8483800 744 1361 804 1572 4000 777 1563 834 17854100 793 1672 3700 728 1266 789 14734000 777 1563 1139 4208 52002300 513 509 2250 505 484681 2400 527 561766 674 993 681 657 901708 663 931 8941241 796 1508 2500 543 617 1142 782 1403 2300 513 5091174 787 1437 2400 527 561 828 6864200 4250 3900 770 1912 3800 753 17832074 22093100 568 686 3000 555 630765 825825 706 968 765 696 9041048 814 1198 3100 568 686 1115 823 1269 3200 582 7451026 739 1181 888 717 1035955 728 1106 1100 750 12593800 690 1185 3700 676 11061328 811 1414 8233900 705 1269 773 1503 3700 676 1106 747 1328 8113800 690 1185 760 1414 823 4000 719 1357 786 1597PRE-START-UP Internal WiringVII. Refrigerant Service Ports START-UP Unit PreparationXII. Heating CoolingXI. Main Burners XVI. ECONOMI$ER+ Controller XIV. Safety ReliefXIII. Integrated GAS Controller IGC Operation EconoMi$er+ Controller Board DS1 DS2 DS3 DS4Start-Up Mode Sequence EconoMi$er+ Inputs and OutputsValue Setting Configuration Variables Read and Setup ModesSetup Points Units Minimum Maximum Factory INC Comments Input/Output ChannelsSetup Mode Manual Mode Error ModeVentilation Air And Free Cooling XVII. ECONOMI$ER+ ConfigurationCompressor Configuration And Control Demand Ventilation Configuration Power Exhaust ConfigurationHeating, Units Without EconoMi$er+ XVIII. Operating SequenceCooling, Units Without EconoMi$er+ Cooling, Units With EconoMi$er+Service Cleaning VIII. HIGH-PRESSURE Switch IV. Blower Belt AdjustmentVI. Economizer Adjustment IX. LOSS-OF-CHARGE SwitchTo Use Cooling Charging Chart Cooling Charging Chart 580F090Cooling Charging Chart 580F120 Cooling Charging Chart 580F091 Cooling Charging Chart 580F121 XIII. COMBUSTION-AIR Blower XIV. Limit SwitchXII. Flue GAS Passageways XV. Burner IgnitionCleaning and Adjustment XVII. Replacement PartsTroubleshooting ECONOMI$ER+ Troubleshooting II. Unit Troubleshooting Cooling Service Troubleshooting Problem Cause RemedyHeating Service Troubleshooting Typical Unit Wiring Schematic 208/230-3-60 Unit Shown Startup Mode Appendix a ECONOMI$ER+ LabelAppendix a ECONOMI$ER+ Label Appendix B JOB Specific ECONOMI$ER+ Configuraiton Settings Index Service Training Call for Free CatalogPage Preliminary Information START-UP ChecklistRemove and Store in Job File III. START-UP Electrical
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580F specifications

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