Bryant R-22 service manual Access Compressor Or Other Internal Cabinet Components

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Access Compressor Or Other Internal Cabinet Components

NOTE: It is not necessary to remove the top cover to gain access. Removing the top cover may cause grill panels, corner posts, louvers or coils to be damaged. It is recommended to protect the top cover from damage of tools, belt buckles, etc. while servicing from the top.

1.Should the unit height allow components to be accessed from the top of the unit, follow procedures for removing fan motor assembly. Access components through the top cap.

2.Large components may not be removed easily without having access from the top and side. Side access may allow procedures such as brazing, cutting, and removal easier. Follow procedures below:

a.Follow procedures to remove the fan motor assembly.

b.Air conditioning units only, remove the screws from the top of the electrical control panel. (Heat pumps will not have screws holding the electrical control panel in place at the top once the control box cover has been removed.)

c.Remove the base pan screws holding the control panel and lift off the unit.

Certain maintenance routines and repairs require removal of cabinet panels.

Remove Top Cover - Mid-Tier / Deluxe

1.Turn off all power to outdoor and indoor units.

2.Remove access panel.

3.Remove information plate.

4.Disconnect fan motor wires and cut wire ties. Remove wires from control box. Refer to unit wiring label.

5.Remove screws holding top cover to louver panels.

6.Lift top cover from unit.

7.Reverse sequence for reassembly.

Remove Fan Motor Assembly - Mid-Tier / Deluxe

1.Perform items 1 through 6 from above.

2.Remove nuts securing fan motor to top cover.

3.Remove motor and fan blade assembly.

4.Reverse sequence for reassembly.

5.Prior to applying power, check that fan rotates freely.

Control Box Cover—Legacy RNC Products

This panel contains much of the same information as the information plate mentioned previously, but is designed only to cover the control box.

Remove Top Cover—Legacy RNC Products

1.Turn off all power to outdoor an indoor units.

2.Remove 5 screws holding top cover to coil grille and coil tube sheet.

3.Remove 2 screws holding control box cover.

4.Remove 2 screws holding information plate.

5.Disconnect fan motor wires, cut any wire ties, and move wires out of control box and through tube clamp on back of control box.

6.Lift top cover from unit.

7.Reverse sequence for reassembly.

Remove Fan Motor Assembly—Legacy RNC Products

1.Perform items 1, 3, 4, and 5 above. (Note: item 2 is not required.)

2.Remove 4 screws holding wire basket to top cover.

3.Lift wire basket from unit.

4.Remove nuts holding fan motor to wire basket.

5.Remove motor and fan blade assembly.

6.Pull wires through wire raceway to change motor.

7.Reverse sequence for reassembly.

8.Prior to applying power, check that fan rotates freely.

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Contents Application Guideline Table of ContentsTWO Stage Communicating Table of Contents TWO Stage NON-COMMUNICATINGAIR Conditioner and Heat Pump Model Number Nomenclature Serial Number NomenclatureSafety Considerations Installation GuidelineIntroduction Accessories Required Field-Installed Accessories for Air ConditionersRequired Field-Installed Accessories for Heat Pumps Accessory Descriptions LOW-AMBIENT Cooling Guideline Base / Mid-Tier / Deluxe 4-sided Baffle AssemblyDeluxe 3-sided Baffle Assembly and Dimensions Cabinet Assembly Long Line GuidelineBasic Cabinet Designs Access Compressor Or Other Internal Cabinet Components Legacy RNC and Legacy Line Control Box Identification Figure Labels LabelingElectrical Aluminum WireContactor CapacitorTime-Delay Relay Crankcase HeaterCycle Protector Personal Injury Hazard Pressure SwitchesDefrost Control Board Defrost ThermostatDefrost Speedup Troubleshooting HK32EA001 If outdoor unit will not runIf defrost thermostat is stuck closed If defrost thermostat is stuck openQuiet Shift Five-Minute Compressor DelayCooling HeatingFan Motor Troubleshooting HK32EA003Compressor Plug Low-Voltage TerminalsMechanical Failures Compressor FailuresLocked Rotor Runs, Does Not PumpSplit Post Grommet part number KA75UG100 Noisy CompressorSingle-Phase Motors Electrical FailuresUnit Personal Injury Hazard Refrigeration System RefrigerantCompressor Oil Servicing Systems on Roofs With Synthetic Materials Synthetic Roof Precautionary ProcedureBrazing Oil ChargingService Valves and Pumpdown Pumpdown ProcedurePersonal Injury and Unit Damage Hazard AccuRaterr Components Used in R-22 Heat Pumps Heating Piston AccuRaterr Heat Pumps OnlyReversing Valve Heating Mode, Solenoid De-Energized Reversing ValveInstall Liquid-line Filter Drier Indoor AC Liquid Line Filter DrierSuction Line Filter Drier Accumulator AccumulatorThermostatic Expansion Valve TXV Install TXVTXV Operation Unit Operation HazardReplacing TXV on an Indoor Coil pre-2006 Make Piping ConnectionsReplacing TXV on Indoor Coil post-2006 Personal Injury and Environmental HazardLeak Detection Refrigeration System RepairCoil Removal Fire HazardSystem Clean-Up After Burnout Compressor Removal and ReplacementCheck Charge EvacuationDeep Vacuum Method Basic Diagnostics Troubleshooting with SuperheatLow Superheat with Normal or Low Suction Pressure Low Superheat with High Suction PressureHigh Superheat with Normal or High Suction Pressure Hunting SuperheatPseudo Evaporator Superheat Instructions Example Puron System Suction Pressure Drop22 System Suction Pressure Drop Psig PuronrRefrigerant Pressure Temperature ChartPsig 22 Refrigerant Pressure Temperature RelationshipLiquid Line Temperature F Liq Press Subcooling F Psig Puron Subcooling ChartSuperheat F Psig Puron Superheat ChartLiquid Line Temperature F PT F Subcooling F Pres Psig 22 Subcooling Chart22 Superheat Chart Application Guidelines TWO-STAGEModel Plug Model Plug InformationLow Ambient Cooling General InformationDefrost Airflow Selection for 315AAV/355AAV FurnacesDefrost Hold Liquid-Line Solenoid AccessoryForced Defrost All 286A units must be charged in high stage onlyCooling and Heating Operation One Minute Stage Change Time Delay on 286ANA/187ANA ModelsUtility Interface With Evolution Control Compressor Operation on 286ANA/187ANA ModelsOutdoor Fan Motor Operation ECM Fan Motor TroubleshootingTime Delays Muffler, Accumulator, Reversing Valve RVSThermistors Control BOX Troubleshooting 230v Brown-Out Protection Defeated 230V Line Power Disconnect DetectionCompressor Voltage Sensing Contactor Shorted DetectionTemperature Thermistors Unloader Test ProcedureFailed Thermistor Default Operation Thermistor Sensor ComparisonStatus Codes TroubleshootingEdge Thermidistat Models T6-PRH-01 or T6-NRH-01 TWO-STAGE 286B/289B/180B/187B General Information All 286B units must be charged in high stage only Heating Check Chart ProcedureCompressor Operation on 289B/180B Models Low Stage High Stage Low & High Model Troubleshooting 187B & 286B Start Circuit Incoming PowerControl Box Contactor And CapacitorTroubleshooting HK38EA015 circuit board 289B Compressor Thermal Cutout 286B Models Compressor Thermal CutoutOutdoor Coil Thermistor OCT Attachment Status Codes Single Stage Furnace with 2-Stage Air Conditioner Operating Ambient TWO Stage NON-COMMUNICATING 127A/226AAirflow Selections ECM Furnaces Airflow Selection for FV4C Fan Coils non-communicatingSystem Function and Sequence of Operation Compressor OperationDefrost Speedup Check Charge TWO Stage Communicating 167A/266A Airflow Selections for ECM Furnaces non communicatingIndoor Thermostat Control Options Defrost Hold Evolution Controlled Low Ambient CoolingMajor Components Communication and Status Function Lights Outdoor Fan Motor OperationFor Evolution Control only, Green communications Comm Light 2230V Brown-Out Protection Defeated Thermistor Curve No 230V at Compressor ContactorOutdoor Coil Thermistor OCT Attachment Status Codes 167A / 266A TroubleshootingCare and Maintenance Puronr R-410A Refrigerant Quick Reference Guide Final Check-OutAIR Conditioner Troubleshooting Chart Heat Pump Troubleshooting Heating Cycle Heat Pump Troubleshooting Cooling Cycle Description Table # Index of TablesTWO-STAGE 286A/288A 180A/187A TWO-STAGE 286B/288B 180B/187BCatalog No. SM01---6
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R-22 specifications

The Bryant R-22 stands out in the landscape of residential heating and cooling systems with its combination of efficiency, durability, and modern technology. Designed primarily for homeowners seeking comfortable climate control solutions, the R-22 model delivers consistent performance throughout varying seasonal extremes.

One of the main features of the Bryant R-22 is its high energy efficiency. Rated with a SEER (Seasonal Energy Efficiency Ratio) that meets or exceeds industry standards, this air conditioning unit is designed to reduce energy consumption while providing optimal cooling. This not only helps in lowering monthly utility bills but also promotes environmentally responsible usage.

Another notable characteristic is the unit's durability. Constructed with a robust cabinet and high-quality components, the R-22 is built to withstand the rigors of daily use, with protective features that enhance its longevity. The cabinet comes with a powder-coated finish that resists corrosion and harsh weather conditions, ensuring that the unit stays functional and aesthetically pleasing for years.

The Bryant R-22 also incorporates advanced technology to improve user experience. One such innovation is the SmartSet technology, which allows homeowners to program their unit to optimize comfort levels according to their specific needs. This programmable capability enhances energy savings and ensures that the home remains at the desired temperature when residents are present.

Moreover, the unit features a Quiet Operating System that significantly reduces noise levels, making it suitable for residential areas where noise might be a concern. The design minimizes vibrations and optimizes airflow, creating a comfortable environment without disruptive sounds.

For added convenience, the Bryant R-22 is compatible with various thermostat options, including Wi-Fi-enabled models. This allows users to control their home's climate from anywhere using a smartphone app, facilitating effortless adjustments and monitoring of energy usage.

Finally, the Bryant R-22 is backed by a solid warranty, providing peace of mind for homeowners. This commitment to quality and customer satisfaction is a testament to Bryant’s dedication to producing reliable and efficient HVAC solutions. Overall, the Bryant R-22 is an exemplary choice for those looking to enhance their home comfort with the latest in HVAC technology.
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