Bryant 581B036--072, 581C024--060 Low Charge Cooling, Perfect Humidity System Charging

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Low Charge Cooling

Using Cooling Charging Charts, Fig. 51-54 and 59-62, vary refrigerant until the conditions of the charts are met. Note the charging charts are different from type normally used. Charts are based on charging the units to the correct superheat for the various operating conditions. Accurate pressure gauge and temperature sensing device are required. Connect the pressure gauge to the service port on the suction line. Mount the temperature sensing device on the suction line and insulate it so that outdoor ambient temperature does not affect the reading. Indoor-air cfm must be within the normal operating range of the unit.

Perfect HumiditySystem Charging

The system charge for units with the Perfect Humidity adaptive dehumidification system is greater than that of the standard unit alone. The charge for units with this option is indicated on the unit nameplate drawing. Also refer to Fig. 55-58. To charge systems using the Perfect Humidity adaptive dehumidification system, fully evacuate, recover, and recharge the system to the nameplate specified charge level. To check or adjust refrigerant charge on systems using the Perfect Humidity adaptive dehumidification system, charge per Fig. 55-58.

C06139

Fig. 51 ---Cooling Charging Chart,

Standard 581B 036

C06140

Fig. 52 ---Cooling Charging Chart,

Standard 581B 048

C06141

Fig. 53 ---Cooling Charging Chart,

Standard 581B 060

581B,C

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Contents Installation Instructions Rig and Place Unit Install External Trap for Condensate DrainProvide Unit Support Field Fabricate DuctworkRoof Curb Details Install Gas Piping Install Flue HoodRoof Curb Alignment 581B 036-072 Base Unit Dimensions 581C 024-060 Base Unit Dimensions Make Electrical Connections Field Power SupplyField Control Wiring Heat Anticipator SettingsBase Unit 581B Physical Data 581BUnit Size 581B Base Unit 581C Physical Data 581CUnit Size 581C Power Wiring Connections 581C024---060 Electrical Data 581CElectrical Data 581B Manual Outdoor Damper Adjust Factory-Installed OptionsAssembly Perfect Humidity Adaptive Dehumidification SystemTypical Perfect Humidity t Adaptive Dehumidification System Outdoor-Air Damper With Hood Attached Outdoor Air Lockout Sensor Supply Air Temperature SAT SensorSupply Air Sensor Temperature Resistance Values Temperature FDifferential Dry Bulb Control Economi$er IV Control ModesOutdoor Dry Bulb Changeover Economi$er IV Sensor UsageEconoMi$er IV Wiring Minimum Position Control Exhaust Set Point AdjustmentDemand Controlled Ventilation DCV Damper MovementThermostats Enthalpy Changeover Set Points Belt Drive Motors Dehumidification of Fresh Air with DCV ControlBelt Drive Motor Mounting CO2Sensor Standard SettingsEvaporator-Fan Motor Data High-Static Motors 581B Fan Rpm at Motor Pulley Setting With High-Static MotorAccessory Static Pressure Evaporator-Fan Motor Data Standard MotorARI Octave Bands Unit Rating 581B Outdoor Sound Power Total Unit581C Outdoor Sound Power Total Unit ARI Octavebands Rating Unit Weighted1300 Rpm Bhp1100 1200Rpm Bhp Watts 1700 Rpm Bhp WattsWatts Rpm Bhp 1200 16001642 2333 1704 Rpm Bhp Watts 15002800 Watts Rpm Bhp 18002600 2700Bhp 600 Bhp Watts Rpm2700 2800 2900 3000 Watts Rpm Bhp 900 Bhp Watts 900Watts Rpm Bhp Watts 1700 1800 1900 20001900 2000 2100 2200 2300 2400 2500 800 350 904 438 999 535 1087 640 1169 753 913 569 913 569 1010 715 Gas Piping Internal WiringRefrigerant Service Ports Unit PreparationMain Burners Compressor RotationCooling Operating Sequence Safety ReliefHeating Ventilation Continuous FanHeating Units With Economi$er Subcooling ModeHot Gas Reheat Mode One-Row Coils CleaningEvaporator Coil Condenser CoilLoss-of-Charge Switch Condenser-Fan AdjustmentEconoMi$er IV Adjustment High Pressure SwitchPerfect Humidity System Charging Low Charge CoolingC06142 Flue Gas Passageways 581C 3 TON Charging Chart 581C 5 TON Charging Chart Combustion-Air Blower Limit SwitchLED Error Code Description Removal and Replacement of Gas Train SeeReplacement Parts OFM Economi$er IV Troubleshooting Unit TroubleshootingLED OFF Economi$er IV Troubleshooting CompletionLED Error Code Service Analysis Symptom Cause RemedyProblem Cause Remedy Heating Service AnalysisCooling Service Analysis Inputs Outputs EconoMi$er IV Input/Output LogicCatalog No. II581B---C---36---1 Preliminary Information