Bryant 558D installation instructions Cooling Troubleshooting

Page 32

TROUBLESHOOTING

Refer to Tables 19-21 and Fig. 44 for Troubleshooting information.

Table 19 Ð Cooling Troubleshooting

PROBLEM

CAUSE

REMEDY

 

Power failure.

Call power company.

 

Fuse blown or circuit breaker tripped.

Replace fuse or reset circuit breaker.

Compressor and

Defective thermostat, contactor, transformer, or

Replace component.

control relay.

condenser fan

 

Insufficient line voltage.

Determine cause and correct.

will not start.

 

Incorrect or faulty wiring.

Check wiring diagram and rewire correctly.

 

Thermostat setting too high.

Lower thermostat setting below room

 

temperature.

 

 

 

Faulty wiring or loose connections in compressor

Check wiring and repair or replace.

 

circuit.

 

 

Compressor will not start

Compressor motor burned out, seized, or internal

Determine cause. Replace compressor.

overload open.

but condenser fan runs.

 

Defective run/start capacitor, overload, start relay.

Determine cause and replace.

 

 

One leg of of 3-phase power dead.

Replace fuse or reset circuit breaker.

 

Determine cause.

 

 

 

Refrigerant overcharge or undercharge.

Recover refrigerant, evacuate system, and

 

recharge to nameplate.

 

 

 

Defective compressor.

Replace and determine cause.

Compressor cycles

Insufficient line voltage.

Determine cause and correct.

Blocked condenser.

Determine cause and correct.

(other than normally

satisfying thermostat).

Defective run/start capacitor, overload, or start relay.

Determine cause and replace.

 

Defective thermostat.

Replace thermostat.

 

Faulty condenser-fan motor or capacitor.

Replace.

 

Restriction in refrigerant system.

Locate restriction and remove.

 

Dirty air ®lter.

Replace ®lter.

 

Unit undersized for load.

Decrease load or increase unit size.

 

Thermostat set too low.

Reset thermostat.

Compressor operates

Low refrigerant charge.

Locate leak; repair and recharge.

continuously.

 

 

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.

 

Dirty air ®lter.

Replace ®lter.

 

Dirty condenser coil.

Clean coil.

Excessive head pressure.

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.

 

Low refrigerant charge.

Check for leaks; repair and recharge.

Head pressure too low.

Compressor valves leaking.

Replace compressor.

 

Restriction in liquid tube.

Remove restriction.

Excessive suction

High heat load.

Check for source and eliminate.

Compressor valves leaking.

Replace compressor.

pressure.

Refrigerant overcharged.

Recover excess refrigerant.

 

 

Dirty air ®lter.

Replace ®lter.

 

Low refrigerant charge.

Check for leaks; repair and recharge.

 

Metering device or low side restricted.

Remove source of restriction.

Suction pressure too low.

Insufficient evaporator air¯ow.

Increase air quantity. Check ®lter 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 ®nished.

Wait for 30-second off delay.

(Sizes 036-060 only.)

 

 

Compressor makes excessive

Compressor rotating in wring direction.

Reverse the 3-phase power leads as

noise (558D072 scroll only).

described in Start-Up section, page 17.

 

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Contents Important Ð Read Before Installing ContentsSafety Considerations InstallationSTD Unit Economizer Weight Corner Weight Weight Durablade ParabladeLocate the Unit ClearanceSlab Mount Horizontal Units Only II. Unit Duct ConnectionsAccessory Roof CurbUnit Size CRRFCURB001A00Specications Maximum Allowable Difference IV. Field ConnectionsExternal Trap Condensate Drain Field Duct ConnectionsInternal Trap Condensate Drain Low-Voltage Connections Typical Component Location Electrical Data SizeType RLA LRA FLAHacr MocpNEC RLAAccessory Installation Optional Outdoor-Air Damper InstallationOptional Durablade Economizer Optional Parablade EconomizerHorizontal Durablade Economizer Installation Degree Rotation Outdoor-Air Thermostat Enthalpy Control Installation Control Control Point Approx Curve AT 50% RHSTART-UP Heating Section START-UP and Adjustments PRE-START-UPII. Cooling Section START-UP and Adjustments Direct Drive Motors III. Indoor Airflow and Airflow AdjustmentsFan Rpm at Motor Pulley Settings ESP Motor DataStandard Direct Drive Motor Airflow Alternate Belt Drive Motor Airflow Cfm Rpm Watts Watts Rpm 1200 542 168 616 221 678 278 739 3361300 576 210 644 263 704 326 764 389 1400 610 252 673 315 732 378 791 441Standard Belt Drive Motor Airflow Ð24Ð Watts Rpm 1200 514 158 590 210 657 263 723 315 828 441 1300 545 189 615 242 680 305 744 3681400 577 221 642 284 704 347 766 410 1500 609 273 670 326 729 394 788 462Cfm Rpm Watts 1500 658 276 722 337 840 470 1343 1615 1431 1829 1600 693 327 754 388 867 5311350 1645 1424 1921 1700 729 388 787 450 895 593 1364 1676 1432 1931 1800 765 460 821 521Belt Drive Motors Ventilation SequenceCare and Maintenance Service CleaningAIR Filter Evaporator CoilIII. CONDENSER-FAN Adjustment Fig II. LubricationCompressors Fan-Motor BearingsReplacement Parts IV. Refrigerant ChargeCooling Charging Chart 558D036 Troubleshooting Cooling TroubleshootingDurablade Economizer Troubleshooting Damper does notParablade Economizer Troubleshooting Enthalpy readingsAHA LSMMTR CAPPage Page Service Training Call for Free CatalogPage Temperatures Preliminary InformationIII. START-UP Electrical Pressures

558D specifications

The Bryant 558D represents a leading-edge model in the realm of advanced heating, ventilation, and air conditioning (HVAC) systems. Designed for both residential and light commercial applications, this unit brings together efficiency, performance, and reliability, making it a go-to choice for homeowners and contractors alike.

One of the standout features of the Bryant 558D is its high-efficiency rating. With SEER (Seasonal Energy Efficiency Ratio) ratings that can reach up to 18, it allows homeowners to enjoy significant savings on electricity bills while maintaining a comfortable indoor environment. The system is powered by advanced compressors that ensure optimal performance across various climate conditions, providing consistent cooling and heating as needed.

In terms of technology, the Bryant 558D incorporates a two-stage cooling system, which allows for better temperature control and humidity management. This technology enhances comfort by preventing the system from frequently starting and stopping, thus reducing wear and tear while extending the unit's lifespan. The variable-speed blower motor further contributes to this efficiency by adjusting its speed to meet the precise needs of the space, ensuring optimal air distribution and comfort.

Durability is another hallmark of the Bryant 558D. The unit is built with high-quality materials, including a galvanized steel cabinet coated with a sleek, weather-resistant finish that protects against rust and environmental wear. Its compact design makes installation seamless, allowing it to fit into various spaces without significant modifications.

The Bryant 558D also features smart technology compatibility, allowing users to integrate it with modern home automation systems. This connectivity provides homeowners with remote control capabilities, enabling them to regulate their home’s temperature via smartphone applications. This not only adds to convenience but also supports energy management strategies, as users can adjust settings based on occupancy and lifestyle patterns.

Finally, noise levels have been an important consideration in the design of the Bryant 558D. With innovative sound-dampening features, the unit operates quietly, making it an ideal choice for residential areas where noise sensitivity is paramount.

Overall, the Bryant 558D stands out as a sophisticated solution for heating and cooling needs, combining energy efficiency, advanced technology, durability, and user-friendly features. It is an excellent investment for those looking to enhance their home comfort while also being mindful of energy consumption.
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