Bryant 604D--A installation instructions Troubleshooting Chart, Symptom Cause Remedy

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604D-- -- A

Table 9 – Troubleshooting Chart

SYMPTOM

CAUSE

REMEDY

 

 

 

 

Power failure

Call power company

 

Fuse blown or circuit breaker tripped

Replace fuse or reset circuit breaker

 

Defective contactor, transformer, or high--pressure,

Replace component

Compressor and condenser fan will not start.

loss--of--charge or low--pressure switch

 

 

 

 

 

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 tempera-

 

ture

 

 

 

 

 

 

Faulty wiring or loose connections in compressor cir-

Check wiring and repair or replace

 

cuit

 

 

 

 

 

Compressor will not start but condenser fan

Compressor motor burned out, seized, or

Determine cause

internal overload open

Replace compressor

runs

 

 

Defective run/start capacitor, overload, start relay

Determine cause and replace

 

 

One leg of 3--phase power dead

Replace fuse or reset circuit breaker

 

Determine cause

 

 

 

 

 

Three-phase scroll compressor

 

Correct the direction of rotation by reversing the

makes excessive noise, and there may be a

Scroll compressor is rotating in the wrong direction

3--phase power leads to the unit.

low pressure differential.

 

 

 

 

 

 

 

Refrigerant overcharge or undercharge

Recover refrigerant, evacuate system, and re-

 

charge to capacities shown on rating plate

 

 

 

 

 

 

Defective compressor

Replace and determine cause

Compressor cycles (other than normally sat-

Insufficient line voltage

Determine cause and correct

Blocked condenser

Determine cause and correct

isfying 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 filter

Replace filter

 

Unit undersized for load

Decrease load or increase unit size

 

Thermostat set too low

Reset thermostat

Compressor operates continuously

Low refrigerant charge

Locate leak, repair, and recharge

Mechanical damage in compressor

Replace compressor

 

 

Air in system

Recover refrigerant, evacuate system, and re-

 

charge

 

 

 

 

 

 

Condenser coil dirty or restricted

Clean coil or remove restriction

 

Dirty air filter

Replace filter

 

Dirty condenser coil

Clean coil

Excessive head pressure

Refrigerant overcharged

Recover excess refrigerant

Air in system

Recover refrigerant, evacuate system, and re-

 

 

charge

 

 

 

 

 

 

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 IPR leaking

Replace compressor

 

Restriction in liquid tube

Remove restriction

 

High heat load

Check for source and eliminate

Excessive suction pressure

Compressor IPR leaking

Replace compressor

 

Refrigerant overcharged

Recover excess refrigerant

 

Dirty air filter

Replace filter

 

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 airflow

Increase air quantity

Check filter–replace if necessary

 

 

 

 

 

 

Temperature too low in conditioned area

Reset thermostat

 

Outdoor ambient below 55°F (12.7°C)

Install low--ambient kit

 

Filter drier restricted

Replace filter

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Contents Table of Contents Safety ConsiderationsCheck Equipment Receiving and InstallationIntroduction Provide Unit SupportRig and Place Unit Unit Falling HazardProperty Damage Hazard 604D--A24-36 Unit Dimensions 604D--A42-60 Unit Dimensions CPRFCURB012A00 SizeCPRFCURB010A00 CPRFCURB013A00Select and Install Ductwork Corner Weights Small Cabinet Corner Weights Large CabinetRigging/Lifting of Unit See Fig Supply and Return Duct Openings Personal Injury and Electrical Operation HazardHigh-Voltage Connections Install Electrical ConnectionsProvide for Condensate Disposal Unit Component Damage HazardControl Voltage Connections Special Procedures for 208-V OperationAccessory Electric Heaters Installation Standard ConnectionsPhysical Data Unit 604D--A Minimum Airflow for Reliable Electric Heater Operation CFM604D a Cont. Ladder Wiring Schematics 208/230-1-60 Connection Wiring Schematics 208/230-3-60 Cont. Ladder Wiring Schematics 208/230-3-60 Connection Wiring Diagram Cont. Ladder Wiring Diagram Check for Refrigerant Leaks Start-Up AdjustmentsSTART-UP Checking Cooling and Heating Control Operation604D--A Sequence of Operation Checking and Adjusting Refrigerant ChargeIndoor Airflow and Airflow Adjustments Unit Operation HazardContinuous Fan Operation Two Cooling Fan Speeds Set-up Dehumidification feature usedSingle Speed Cooling With Higher Electric Heat Speed Color Coding for Indoor Fan Motor LeadsTypical Heat Pump Operation, Cooling Mode Maintenance Defrost ControlAir Filter Outdoor Coil, Indoor Coil, and Condensate Drain Pan Outdoor FanA24-60 Series a 604D--A Wet Coil Pressure Drop IN. W.CFilter Pressure Drop Table IN. W.C Cooling Charging Table-Subcooling Electrical Controls and Wiring Refrigerant CircuitHigh-Pressure Switch Pressure SwitchesLoss of Charge Switch Copeland Scroll Compressor Puron RefrigerantTroubleshooting START-UP ChecklistSystem Information Puronr R-410A Quick Reference Guide Troubleshooting Chart Symptom Cause RemedyPreliminary Information Model no TemperaturesRemove and Store in Job Files III. START-UP Electrical Supply Voltage Compressor AmpsInstallation Vertical Economizer Factory Installed Option GeneralAccessories Small ChassisFilter Part Number Part NumberHood Divider Removed Economizer Hood Assembly Large Chassis Horizontal Return Duct Cover Panel and Hood Divider RemovalLeft Hood Side Hood Assembly Temperature ConfigurationSupply AIR Temperature SAT SENSOR-The supply Economizer Standard Sensors11.7C 12.8C 14.4C 17.2C 20C 22.8C 25.6C Economizer Controller 604D-- -- a Economizer Wiring Diagram A10200 Cont. Ladder Wiring Diagram A10199 604D-- -- a 604D-- -- a CO2 Sensor Standard Settings CO2 Sensor Standard Settings Economizer Input/Output LogicOperation Troubleshooting 604D--A 30-36 3 Phase with Economizer 604D--A 42-60 3 Phase with Economizer

604D--A specifications

The Bryant 604D--A is a remarkable heating and cooling unit designed for both efficiency and performance, making it an ideal choice for homeowners seeking optimal climate control solutions. Its impressive array of features, technologies, and characteristics sets it apart in the HVAC market.

One of the standout features of the Bryant 604D--A is its advanced two-stage cooling system. This design allows the unit to adjust its cooling output based on the current temperature and humidity levels, which ensures a comfortable indoor environment while optimizing energy consumption. This two-stage operation is particularly beneficial during transitional seasons when temperatures fluctuate, providing a quieter operation and increased efficiency.

The Bryant 604D--A incorporates high-efficiency compressor technology that maximizes cooling capability while minimizing energy usage. This energy-efficient operation is further enhanced by its excellent SEER (Seasonal Energy Efficiency Ratio) rating. By achieving a high SEER rating, the 604D--A not only promotes energy savings but also contributes to lower utility bills, making it an economically sound investment for homeowners.

Another key characteristic of the Bryant 604D--A is its durable construction. Built with quality materials, this unit is designed to withstand varying weather conditions, ensuring longevity and reliable performance over the years. Its robust design also minimizes vibrations and noise, making it a quieter option compared to many competing systems.

Smart technology integration is also a significant highlight of the Bryant 604D--A. It features wireless connectivity, allowing users to control their heating and cooling settings remotely through a smartphone app. This modern convenience enables homeowners to adjust their indoor climate on-the-go, enhancing user comfort and convenience.

Additionally, the Bryant 604D--A is equipped with an advanced filtration system that helps to improve indoor air quality. By capturing dust, pollen, and other particles, this filtration system ensures that the air circulating within the home remains clean and healthy.

In conclusion, the Bryant 604D--A is a high-performance HVAC unit that excels in energy efficiency, durability, and convenience. With its advanced technology, quiet operation, and user-friendly features, it stands as a premier choice for those looking to elevate their home comfort while maintaining cost-effectiveness and sustainability. Whether for new installations or as a replacement for an outdated system, the Bryant 604D--A is undoubtedly a leader in modern climate control solutions.
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