Bryant 580J*08--14D Return-Air Filters, Outdoor-Air Inlet Screens, Compressor Mounting, Cooling

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!WARNING

UNIT OPERATION AND SAFETY HAZARD

Failure to follow this warning could result in personal injury or death.

Disconnect gas piping from unit when leak testing at pressure greater than 1/2 psig. Pressures greater than 1/2 psig will cause gas valve damage resulting in hazardous condition. If gas valve is subjected to pressure greater than 1/2 psig, it must be replaced before use. When pressure testing field-supplied gas piping at pressures of 1/2 psig or less, a unit connected to such piping must be isolated by manually closing the gas valve.

Return-Air Filters

Make sure correct filters are installed in unit (see Appendix II - Physical Data). Do not operate unit without return-air filters.

Outdoor-Air Inlet Screens

Outdoor-air inlet screen must be in place before operating unit.

Compressor Mounting

Compressors are internally spring mounted. Do not loosen or remove compressor hold down bolts.

Internal Wiring

Check all factory and field electrical connections for tightness. Tighten as required.

Refrigerant Service Ports

Each unit system has two 1/4” SAE flare (with check valves) service ports: one on the suction line, and one on the compressor discharge line. Be sure that caps on the ports are tight.

Compressor Rotation

On 3-phase units with scroll compressors, it is important to be certain compressor is rotating in the proper direction. To determine whether or not compressor is rotating in the proper direction:

1.Connect service gauges to suction and discharge pressure fittings.

2.Energize the compressor.

3.The suction pressure should drop and the discharge pressure should rise, as is normal on any start-up.

If the suction pressure does not drop and the discharge pressure does not rise to normal levels:

1.Note that the evaporator fan is probably also rotating in the wrong direction.

2.Turn off power to the unit and install lockout tag.

3.Reverse any two of the unit power leads.

4.Re-energize to the compressor. Check pressures.

The suction and discharge pressure levels should now move to their normal start-up levels.

NOTE: When the compressor is rotating in the wrong direction, the unit will make an elevated level of noise and will not provide cooling.

Cooling

Set space thermostat to OFF position. To start unit, turn on main power supply. Set system selector switch at COOL position and fan switch at AUTO. position. Adjust thermostat to a setting approximately 5_F (3_C) below room temperature. Both compressors start on closure of contactors.

Check unit charge. Refer to Refrigerant Charge section.

Reset thermostat at a position above room temperature. Both compressors will shut off. Evaporator fan will shut off immediately.

To shut off unit, set system selector switch at OFF position. Resetting thermostat at a position above room temperature shuts unit off temporarily until space temperature exceeds thermostat setting.

Main Burners

Main burners are factory set and should require no adjustment.

To check ignition of main burners and heating controls, move thermostat setpoint above room temperature and verify that the burners light and evaporator fan is energized. Check heating effect, then lower the thermostat setting below the room temperature and verify that the burners and evaporator fan turn off.

Refer to Table 11 for the correct orifice to use at high altitudes.

Heating

1.Purge gas supply line of air by opening union ahead of the gas valve. If gas odor is detected, tighten union and wait 5 minutes before proceeding.

2.Turn on electrical supply and manual gas valve.

3.Set system switch selector at HEAT position and fan switch at AUTO. or ON position. Set heating temperature lever above room temperature.

4.The induced-draft motor will start.

5.After a call for heating, the main burners should light within 5 seconds. If the burner does not light, then there is a 22-second delay before another 5-second try. If the burner still does not light, the time delay is repeated. If the burner does not light within 15 minutes, there is a lockout. To reset the control, break the 24 v power to W1.

6.The evaporator-fan motor will turn on 45 seconds after burner ignition.

7.The evaporator-fan motor will turn off in 45 seconds after the thermostat temperature is satisfied.

8.Adjust airflow to obtain a temperature rise within the range specified on the unit nameplate.

580J

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Contents Safety Considerations Table of ContentsUnit Arrangement and Access GeneralWhat to do if you smell gas Seasonal Maintenance Routine MaintenanceSupply FAN Blower Section Supply Fan Belt-DriveManual Outside Air Hood Screen Supply-Fan Pulley Adjustment Bearings Adjustable-Pitch Pulley on MotorEvaporator Coil Coil Maintenance and Cleaning RecommendationCooling Condenser CoilRoutine Cleaning of Evaporator Coil Surfaces Routine Cleaning of Novation Condenser Coil SurfacesRefrigerant Charge Refrigerant System Pressure Access PortsPuronr R-410A Refrigerant Evaporator Coil Metering DevicesSeatcore Cooling Charging Charts 08D,F Both Circuits Cooling Charging ChartsCooling Charging Charts 12D,F Both Circuits TON Circuit TON Circuit Problem Cause Remedy Cooling Service AnalysisCompressors Condenser-Fan Adjustment 08D-12D,F sizeCondenser-Fan Adjustment 14D,F size Troubleshooting Cooling SystemConvenience Outlets Installing Weatherproof CoverNon-Powered Type Unit-Powered TypeSmoke Detectors Sensor Smoke Detector LocationsSupply Air All Units Completing Installation of Return Air Smoke SensorFiop Smoke Detector Wiring and Response Return Air Without EconomizerSensor and Controller Tests Dirty Sensor Test Procedure Controller Alarm TestController Alarm Test Procedure Dirty Controller Test ProcedureDirty Sensor Test Using an SD-TRK4 Detector CleaningSD-TRK4 Remote Alarm Test Procedure Remote Test/Reset Station Dirty Sensor TestTroubleshooting Compressor Protection Protective DevicesGAS Heating System Control CircuitFuel Types and Pressures Liquid Propane Supply Line Pressure Ranges Supply Pressure SwitchFlue Gas Passageways Combustion-Air BlowerBurners and Igniters Main BurnersOrifice Projection Cleaning and Adjustment Check Unit Operation and Make Necessary AdjustmentsLimit Switch LED Error Code Description LED Indication Error Code DescriptionBurner Ignition Gas Valve Orifice ReplacementRed LED-Status Orifice Sizes Altitude CompensationLP Orifice Troubleshooting Heating System Minimum Heating Entering Air TemperatureHeating Service Analysis IGC IGC Board LED Alarm CodesReplacing Novation Condenser Coil Condenser Coil ServiceRepairing Novation Condenser Tube Leaks RTU-MP Control SystemRTU-MP Multi-Protocol Control Board Typical RTU-MP System Control Wiring Diagram Outputs Supply Air Temperature SAT SensorOutdoor Air Temperature OAT Sensor RTU-MP Controller Inputs and OutputsSpace Temperature SPT Sensors EconoMi$erConnect T-55 Outdoor Air Enthalpy Control PNO HH57AC077 Economizer ControlsIndoor Air Quality CO2 Sensor Wiring the Indoor Air Quality SensorDifferential Enthalpy Control Return Air Enthalpy SensorFilter Status Connecting Discrete InputsOutdoor Air Quality Sensor PNO 33ZCSENCO2 plus Weatherproof EnclosureCommunication Wiring Protocols Power Exhaust outputBaud Rate DS2 DS1 RTU-MP TroubleshootingCommunication LEDs Protocol DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1LEDs on the RTU-MP show the status of certain functions LEDsTroubleshooting Alarms BACnet MS/TP AlarmsModule Status Report Modstat Example Code Name Meaning Basic Protocol TroubleshootingModbus Manufacture DateEconoMi$er IV Component Locations ECONOMI$ER SystemsEconoMi$er IV Wiring EconoMi$er IV Functional View EconoMi$er IV Input/Output LogicOutdoor Dry Bulb Changeover Supply Air Temperature SAT SensorOutdoor Air Lockout Sensor EconoMi$er IV Control ModesOutdoor Enthalpy Changeover Differential Dry Bulb ControlExhaust Setpoint Adjustment Indoor Air Quality IAQ Sensor InputMinimum Position Control Damper Movement ThermostatsDemand Control Ventilation DCV CO2 Sensor Configuration CO2 Sensor Standard SettingsAnalog CO2 Differential Enthalpy DCV Demand Controlled Ventilation and Power ExhaustEconoMi$er IV Sensor Usage EconoMi$er IV PreparationSupply-Air Sensor Input Wiring DiagramsEconoMi$er IV Troubleshooting Completion DCV Minimum and Maximum Position 580J Typical Unit Wiring Diagram Power 08D,F, 208/230-3-60 C09157 Gas Piping PRE-START-UPSTART-UP, General Unit PreparationOutdoor-Air Inlet Screens Internal WiringRefrigerant Service Ports Return-Air FiltersSTART-UP, RTU-MP Control Field Service TestConfiguration Unit Start DelayCompressor2 Service Hours Filter Service HoursSupply Fan Service Hours Compressor1 Service HoursInput 2 Function InputSpace Sensor Type Input 1 FunctionCooling, Unit With EconoMi$er Operating SequencesBase Unit Controls Cooling, Units Without Economizer Heating, Units Without EconomizerRTU-MP Sequence of Operation Heating With EconoMi$erDemand Controlled Ventilation Supplemental ControlsBACnet Schedule Always Occupied Default OccupancyScheduling Local SchedulePower Exhaust CoolingEconomizer Torque Values Fastener Torque ValuesIndoor Air Quality Demand LimitPosition Number Appendix I. Model Number SignificanceModel Number Nomenclature Serial Number FormatAppendix II. Physical Data Physical Data12.5TONS Natural Gas Heat, Liquid Propane Heat Heat Anticipator Setting AmpsPhysical Data Heating 12.5TONS 580J**08 580J**12 580J**14 Gas ConnectionAppendix III. FAN Performance 580J**08CFM RPM BHP 579 580J**12RPM BHP 580J**141260 General fan performance notesUnit MOTOR/DRIVE Motor Pulley Turns Open Combo Pulley AdjustmentElectrical Information Mocp Unit Combustion PowerNOM IFM FAN Motor Exhaust No P.E Type DISC. SizeWiring Diagrams Appendix IV. Wiring Diagram ListCatalog No.SM580J---02 Appendix V. Motormaster Sensor Locations580J Preliminary Information Unit START-UP Checklist
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