Bryant 581B installation instructions Cooling Service Analysis, Problem Cause Remedy

Page 47

Table 36 — Cooling Service Analysis

PROBLEM

CAUSE

REMEDY

Compressor and Condenser Fan

Power failure.

Call power company.

Will Not Start

 

 

Fuse blown or circuit breaker tripped.

Replace fuse or reset circuit breaker.

 

 

Defective thermostat, contactor, transformer,

Replace component.

 

or control relay.

 

 

Insufficient line voltage.

Determine cause and correct.

 

Incorrect or faulty wiring.

Check wiring diagram and rewire correctly.

 

Thermostat setting too high.

Lower thermostat setting below room temperature.

Compressor Will Not Start

Faulty wiring or loose connections in com-

Check wiring and repair or replace.

But Condenser Fan Runs

pressor circuit.

 

 

Compressor motor burned out, seized, or

Determine cause. Replace compressor.

 

internal overload open.

 

 

Defective run/start capacitor, overload, start

Determine cause and replace.

 

relay.

 

 

One leg of 3-phase power dead.

Replace fuse or reset circuit breaker. Determine

 

 

cause.

Compressor Cycles (Other Than

Refrigerant overcharge or undercharge.

Recover refrigerant, evacuate system, and recharge

Normally Satisfying Thermostat)

 

to nameplate.

 

Defective compressor.

Replace and determine cause.

 

Insufficient line voltage.

Determine cause and correct.

 

Blocked condenser.

Determine cause and correct.

 

Defective run/start capacitor, overload, or

Determine cause and replace.

 

start relay.

 

 

Defective thermostat.

Replace thermostat.

 

Faulty condenser-fan motor or capacitor.

Replace.

 

Restriction in refrigerant system.

Locate restriction and remove.

Compressor Operates Continuously

Dirty air filter.

Replace filter.

 

Unit undersized for load.

Decrease load or increase unit size.

 

Thermostat set too low.

Reset thermostat.

 

Low refrigerant charge.

Locate leak, repair, and recharge.

 

Leaking valves in compressor.

Replace compressor.

 

Air in system.

Recover refrigerant, evacuate system, and

 

 

recharge.

 

Condenser coil dirty or restricted.

Clean coil or remove restriction.

Excessive Head Pressure

Dirty air filter.

Replace filter.

 

Dirty condenser coil.

Clean coil.

 

Refrigerant overcharged.

Recover excess refrigerant.

 

Air in system.

Recover refrigerant, evacuate system, and

 

 

recharge.

 

Condenser air restricted or air short-cycling.

Determine cause and correct.

Head Pressure Too Low

Low refrigerant charge.

Check for leaks, repair, and recharge.

 

Compressor valves leaking.

Replace compressor.

 

Restriction in liquid tube.

Remove restriction.

Excessive Suction Pressure

High heat load.

Check for source and eliminate.

 

Compressor valves leaking.

Replace compressor.

 

Refrigerant overcharged.

Recover excess refrigerant.

Suction Pressure Too Low

Dirty air filter.

Replace filter.

 

Low refrigerant charge.

Check for leaks, repair, and recharge.

 

Metering device or low side restricted.

Remove source of restriction.

 

Insufficient evaporator airflow.

Increase air quantity. Check filter and replace if

 

 

necessary.

 

Temperature too low in conditioned area.

Reset thermostat.

 

Outdoor ambient below 25 F.

Install low-ambient kit.

Evaporator Fan Will Not Shut Off

Time off delay not finished.

Wait for 30-second off delay.

—47—

Page 46 Page 48
Image 47
Page 46 Page 48
Contents Provide Unit Support ContentsSafety Considerations InstallationIII. Determine Location of Drain Line and External Trap II. Field Fabricate DuctworkCRBTMPWR003A01 Roof Curb Unit Size Accessory CRRFCURB001A01CRBTMPWR001A01 CRBTMPWR002A01Positioning Install Flue HoodVI. Install GAS Piping IV. RIG and Place Unit060 Unit Operating Weight581B 036 048Physical Data 581B036-072 OUTDOOR-AIR Inlet Screens LOSS-OF-CHARGE SWITCH/LOW-PRESSUREFurnace Section Freeze Protection ThermostatBase Unit Dimensions 581B036-072 Steel Pipe Spacing of Supports Nominal Diameter Dimension Field Power SupplyField Control Wiring Heat Anticipator SettingsLow-Voltage Connections With or Without Economizer Power Wiring ConnectionsRLA LRA FLA MCA Mocp Power Exhaust MCA MocpFAN Motor Disconnect SIZE†FAN Motor Supply SIZE†LPS VIII. Adjust FACTORY-INSTALLED OptionsDisconnect Switch Perfect Humidity Dehumidification SystemManual Outdoor-Air Damper Damper Panel with Manual Outdoor-Air Damper InstalledOptional Manual Outdoor-Air Damper With Hood Attached EconoMi$er IV Standard Sensors Indoor Coil Access Panel RelocationBarometric Flow Capacity EconoMi$er IV Sensor Usage Supply Air Sensor Temperature/Resistance ValuesEconoMi$er IV Control Modes Return Air Temperature or Enthalpy Sensor Mounting Location Enthalpy Changeover Set Points Page 581B Fan Rpm at Motor Pulley Setting With High-Static Motor IX. Adjust EVAPORATOR-FAN Speed581B Fan Rpm at Motor Pulley Setting With Standard Motor AMP Draw Phase Continuous BHPUnit Maximum Unit Voltage 581BEvaporator-Fan Motor Data High-Static Motors Accessory/FIOP EconoMi$er IV Static Pressure* in. wgOutdoor Sound Power Total Unit 1292 1294 1175 1346 1275 1400 1147 9721265 1320 1310 1371 1419 1500 1175 1086760 666 257 778 367 871 471 952 572670 701 306 810 426 901 540 981 6511967 16491803 1470 17841049 731 967 5631008 643 805807 358 894 466 971 Rpm Bhp Watts 900 553 134782 316 870 417 948 1000 582 163740 382 643 234 762675 277 707 326919 561 800 350 904 438 999 535839 412 938 505 1030 605 879 483 974 580829 800 350 904 438 999 535 1087 640753 839 412 938 505 1030 605 1115 714General FAN Performance Notes START-UP Unit Preparation VI. Internal WiringVII. Refrigerant Service Ports PRE-START-UPXII. Heating CoolingXI. Main Burners XV. Operating Sequence XIII. Safety ReliefThermostat Input Economizer Function 581B Unit Operation Perfect Humidity Normal Design Cooling OperationVII. LOSS-OF-CHARGE Switch Service CleaningIV. ECONOMI$ER IV Adjustment VI. HIGH-PRESSURE SwitchUnit 581B To Use Cooling Charging Chart, Standard UnitLow Charge Cooling Perfect Humidity System ChargingCooling Charging Chart, Standard 581B036 Condenser FAN Must be Operating XI. COMBUSTION-AIR Blower XII. Limit SwitchXV. Replacement Parts Flue GAS PassagewaysMedium High Heat Units LOW Heat UnitsComp CAPOLR CLOLED OFF Troubleshooting Unit TroubleshootingLED Error Code Service Analysis Symptom Cause RemedyProblem Cause Remedy Heating Service AnalysisProblem Cause Remedy Cooling Service AnalysisII. ECONOMI$ER IV Troubleshooting Demand Control Enthalpy EconoMi$er IV Troubleshooting CompletionEconoMi$er IV Input/Output Logic Inputs OutputsIndex Page III. START-UP Electrical START-UP ChecklistTemperatures Preliminary Information
Related manuals
Manual 40 pages 47.12 Kb Manual 64 pages 44.36 Kb

581B specifications

The Bryant 581B is an innovative and highly efficient gas furnace that stands out in the HVAC market for its remarkable performance, reliability, and advanced features. Designed to provide optimal heating comfort, the Bryant 581B is perfect for homeowners seeking both quality and energy efficiency.

One of the main features of the Bryant 581B is its impressive Annual Fuel Utilization Efficiency (AFUE) rating. With an AFUE rating of up to 80%, this gas furnace maximizes energy usage, ensuring that a significant portion of the fuel is converted into heat for your home. This efficiency not only translates into lower energy bills but also reduces the carbon footprint, making it an environmentally friendly choice.

The furnace is equipped with a multi-speed blower motor that enhances comfort by providing consistent airflow throughout the home. This technology adjusts to different heating demands, ensuring that every room reaches the desired temperature without the discomfort of hot or cold spots. The quiet operation of the blower motor also adds to the overall comfort, creating a peaceful home environment.

Another notable characteristic of the Bryant 581B is its durable construction. It features a robust heat exchanger built from high-quality materials, designed to withstand the rigors of daily use. The compact design of the furnace allows it to fit seamlessly into various spaces, making it an ideal choice for both new installations and replacement projects.

The Bryant 581B also comes with advanced safety features, including a self-diagnostic control board that monitors the system's performance. This feature allows for easy troubleshooting and maintenance, prolonging the life of the furnace. Additionally, the furnace is equipped with an induced draft blower that enhances venting efficiency and safety by ensuring that combustion gases are safely expelled from the home.

For homeowners looking for enhanced control, the Bryant 581B is compatible with a range of smart thermostats, providing the ability to monitor and adjust heating settings remotely. This integration with smart technology ensures that homeowners can maintain their desired comfort levels while maximizing efficiency.

In conclusion, the Bryant 581B gas furnace is a top-tier option that combines efficiency, durability, and modern technology. With its high AFUE rating, multi-speed blower, and advanced safety features, it promises to deliver unparalleled comfort and peace of mind for years to come. Whether for a new build or an upgrade, the Bryant 581B is an investment that pays off in both comfort and savings.
Top Page Image Contents