Bryant R-22 service manual Safety Considerations, Introduction, Installation Guideline

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SAFETY CONSIDERATIONS

Installation, service, and repair of these units should be attempted only by trained service technicians familiar with standard service instruction and training material.

All equipment should be installed in accordance with accepted practices and unit Installation Instructions, and in compliance with all national and local codes. Power should be turned off when servicing or repairing electrical components. Extreme caution should be observed when troubleshooting electrical components with power on. Observe all warning notices posted on equipment and in instructions or manuals.

!WARNING

UNIT OPERATION AND SAFETY HAZARD

Failure to follow this warning could result in personal injury or equipment damage.

Puronr (R-410A) systems operate at higher pressures than standard R-22 systems. Do not use R-22 service equipment or components on Puronr equipment. Ensure service equipment is rated for Puronr.

Refrigeration systems contain refrigerant under pressure. Extreme caution should be observed when handling refrigerants. Wear safety glasses and gloves to prevent personal injury. During normal system operations, some components are hot and can cause burns. Rotating fan blades can cause personal injury. Appropriate safety considerations are posted throughout this manual where potentially dangerous techniques are addressed.

INTRODUCTION

This document provides required system information necessary to install, service, repair or maintain the family air conditioners and heat pumps using R22 or Puron refrigerant.

Refer to the unit Product Data for rating information, electrical data, required clearances, additional component part numbers and related pre-sale data. Installation Instructions are also available per specific models.

INSTALLATION GUIDELINE

Residential New Construction

Specifications for these units in the residential new construction market require the outdoor unit, indoor unit, refrigerant tubing sets, metering device, and filter drier listed in Product Data (PD). DO NOT DEVIATE FROM PD. Consult unit Installation Instructions for detailed information.

Add-On Replacement (Retrofit) - R22 to Puron

Specifications for these units in the add-on replacement/retrofit market require change-out of outdoor unit, metering device, and all capillary tube coils. Change-out of indoor coil is recommended. There can be no deviation.

1.If system is being replaced due to compressor electrical failure, assume acid is in system. If system is being replaced for any other reason, use approved acid test kit to determine acid level. If even low levels of acid are detected install factory approved, 100 percent activated alumina suction-line filter drier in addition to the factory supplied liquid-line filter drier. Remove the suction line filter drier as soon as possible, with a maximum of 72 hr.

2.Drain oil from low points or traps in suction-line and evaporator if they were not replaced.

3.Change out indoor coil or verify existing coil is listed in the Product Data Digest.

4.Unless indoor unit is equipped with a Puronr approved metering device, change out metering device to factory supplied or field-accessory device specifically designed for Puronr.

5.Replace outdoor unit with Puronr outdoor unit.

6.Install factory-supplied liquid-line filter drier.

!CAUTION

UNIT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation.

Never install suction-line filter drier in the liquid-line of a Puronr system.

7.If suction-line filter drier was installed for system clean up, operate system for 10 hr. Monitor pressure drop across drier. If pressure drop exceeds 3 psig, replace suction-line and liquid-line filter driers. Be sure to purge system with dry nitrogen and evacuate when replacing filter driers. Continue to monitor pressure drop across suction-line filter drier. After 10 hr of runtime, remove suction-line filter drier and replace liquid-line filter drier. Never leave suction-line filter drier in system longer than 72 hr (actual time).

8.Charge system. (See unit information plate.)

Seacoast

Coastal units are available in selected models and sizes of Air Conditioners and Heat Pumps. These units have protection to help resist the corrosive coastal environment. Features include:

SArmor plate fins and epoxy coated coils

SComplete baked-on paint coverage

(both sides of external sheet metal and grilles)

SPaint coated screws

Coastal environments are considered to be within 2 miles of the ocean. Salt water can be carried as far away as 2 miles from the coast by means of sea spray, mist or fog. Line-of-sight distance from the ocean, prevailing wind direction, relative humidity, wet/dry time, and coil temperatures will determine the severity of corrosion potential in the coastal environment.

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Contents Application Guideline Table of ContentsSerial Number Nomenclature Table of Contents TWO Stage NON-COMMUNICATINGTWO Stage Communicating AIR Conditioner and Heat Pump Model 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 LabelingCapacitor Aluminum WireElectrical ContactorTime-Delay Relay Crankcase HeaterCycle Protector Personal Injury Hazard Pressure SwitchesDefrost Control Board Defrost ThermostatIf defrost thermostat is stuck open Troubleshooting HK32EA001 If outdoor unit will not runDefrost Speedup If defrost thermostat is stuck closedHeating Five-Minute Compressor DelayQuiet Shift CoolingLow-Voltage Terminals Troubleshooting HK32EA003Fan Motor Compressor PlugRuns, Does Not Pump Compressor FailuresMechanical Failures Locked RotorSplit Post Grommet part number KA75UG100 Noisy CompressorSingle-Phase Motors Electrical FailuresUnit Personal Injury Hazard Refrigeration System RefrigerantCompressor Oil Oil Charging Synthetic Roof Precautionary ProcedureServicing Systems on Roofs With Synthetic Materials BrazingService 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 AccumulatorUnit Operation Hazard Install TXVThermostatic Expansion Valve TXV TXV OperationPersonal Injury and Environmental Hazard Make Piping ConnectionsReplacing TXV on an Indoor Coil pre-2006 Replacing TXV on Indoor Coil post-2006Fire Hazard Refrigeration System RepairLeak Detection Coil RemovalSystem Clean-Up After Burnout Compressor Removal and ReplacementCheck Charge EvacuationDeep Vacuum Method Low Superheat with High Suction Pressure Troubleshooting with SuperheatBasic Diagnostics Low Superheat with Normal or Low 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 Model Plug Information TWO-STAGEApplication Guidelines Model PlugAirflow Selection for 315AAV/355AAV Furnaces General InformationLow Ambient Cooling DefrostAll 286A units must be charged in high stage only Liquid-Line Solenoid AccessoryDefrost Hold Forced DefrostCompressor Operation on 286ANA/187ANA Models One Minute Stage Change Time Delay on 286ANA/187ANA ModelsCooling and Heating Operation Utility Interface With Evolution ControlOutdoor Fan Motor Operation ECM Fan Motor TroubleshootingTime Delays Muffler, Accumulator, Reversing Valve RVSThermistors Control BOX Troubleshooting Contactor Shorted Detection 230V Line Power Disconnect Detection230v Brown-Out Protection Defeated Compressor Voltage SensingThermistor Sensor Comparison Unloader Test ProcedureTemperature Thermistors Failed Thermistor Default OperationStatus 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 Contactor And Capacitor Incoming PowerTroubleshooting 187B & 286B Start Circuit Control BoxTroubleshooting 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 Airflow Selection for FV4C Fan Coils non-communicating TWO Stage NON-COMMUNICATING 127A/226AOperating Ambient Airflow Selections ECM FurnacesSystem 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 TWO-STAGE 286B/288B 180B/187B Index of TablesDescription Table # TWO-STAGE 286A/288A 180A/187ACatalog 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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