Bryant R-22 service manual Basic Cabinet Designs, Electrical Aluminum Wire

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A94003

Fig. 8—Basic Cabinet Designs

ELECTRICAL

I. ALUMINUM WIRE

WARNING: Exercise extreme caution when working on any electrical components. Shut off all power to system prior to troubleshooting. Some troubleshooting tech- niques require power to remain on. In these instances, exercise extreme caution to avoid danger of electrical shock. ONLY TRAINED SERVICE PERSONNEL SHOULD PERFORM ELECTRICAL TROUBLE- SHOOTING.

Troubleshooting charts for air conditioning and heat pump units are provided in the back of this manual. They enable the service technician to use a systematic approach to locate the cause of a problem and correct system malfunctions.

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CAUTION: Aluminum wire may be used in the branch circuit (such as the circuit between the main and unit disconnect), but only copper wire may be used between the unit disconnect and the unit on Bryant systems.

Whenever aluminum wire is used in the branch-circuit wiring with this unit, adhere to the following recommendations.

Connections must be made in accordance with the National Electrical Code (NEC), using connectors approved for aluminum wire. The connectors must be UL-approved (marked Al/Cu with the UL symbol) for the application and wire size. The wire size selected must have a current capacity not less than that of the copper wire specified and must not create a voltage drop between the service panel and the unit in excess of 2 percent of the unit-rated voltage.

To prepare the wire before installing the connector, all aluminum wire must be ″ brush scratched″ and coated with a corrosion inhibiter such as Pentrox A. When it is suspected that the

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Contents Table of Contents Safety ConsiderationsII. ADD-ON Replacement Retrofit Accessory DescriptionsVIII. LOW-AMBIENT Pressure Switch III. Seacoast for AIR Conditioners onlyII. Interconnecting Tubing Sizing IX. Wind BaffleCoastal Filter XI. Support FeetMatl 18 GA Steel Matl 20 GA SteelUnit Size Unit Height SmallMedium Baffle LeftWind Baffle Dimensions for Cube Units Estimated Percentage of Nominal COOLING-CAPACITY LossesIII. Metering Device Sizing IV. LIQUID-LINE Solenoid and Tubing CONFIGU- Ration Fitting Losses in Equivalent FTExample Calculation of Indoor Piston noCommon Piston Sizes LIQUID-LINE Solenoid KIT Part NumbersCharging Information VI -SPEED ApplicationsII. Serial Number Identification Positions 6 through 10-Serial NumberII. Remove FAN-MOTOR ASSEMBLY-BEFORE 1/1/92 CabinetRemove TOP COVER-BEFORE 1/1/92 III. Information PLATE-RELIANT ProductsVI. Remove FAN-MOTOR ASSEMBLY-AFTER 1/1/92 Electrical Aluminum Wire Basic Cabinet DesignsInformation Plate II. ContactorsIII. Capacitors Start Capacitors and PTC DevicesTemporary Capacitance Boost IV. Cycle ProtectorVI. TIME-DELAY Relay Crankcase HeaterVII. Pressure Switches LOW-PRESSURE SwitchHIGH-PRESSURE Switch LIQUID-LINE Pressure SwitchVIII. Defrost Thermostats IX. DEFROST-CONTROL BoardCES0110063 Defrost Control CES0110063 CES0130024Defrost Control SPEED-UP Timing SE SPEED-UPParameter Minimum Maximum Defrost Timer Settings XI. Service Alarm Control BoardFAN Motors OF2 CESO130076-00 XII. Outdoor ThermostatsFAN Position Aeroquiet System and Aeromax TOPService Alarm Wiring Connections XIII. Compressor PlugXIV. LOW-VOLTAGE Terminals Reciprocating CompressorMechanical Failures II. Electrical Failures III. System Cleanup After Burnout IV. Compressor Removal and ReplacementCopeland Scroll Compressor Features II. TroubleshootingCompressor OIL Recharge III. Discharge ThermostatMillennium Scroll Compressor Features III. TroubleshootingIV. Scroll COMPRESSOR, 3-PHASE Monitor II. Compressor ProtectionIFR Indoor External Power Supply 24 Cont Equip GND CAP OFM LogicCESO130075 Cont HPS LPSAmbient Temperature for HIGH- LOW-SPEED Operation Function Light Code and Display Location III. Factory Defaults Factory DefaultsCompressor PTC Ranges IV. Major ComponentsVI. Troubleshooting TWO-SPEED Compressor Winding Resistance AT 70F ±LED FUNCTION/MALFUNCTION Lights Refrigeration System Refrigeration Cycle II. Leak DetectionLow-Speed Windings 24V PIN Connection Troubleshooting III. BrazingCooling Cycle AllService Valves IV. Service ValvesReliant Products Except 1992 Production Reliant and Cube Products ProducedVI. Reversing Valve Reversing Valve VII. THERMOSTATIC-EXPANSION Valves TXVTXV Superheat Setting AT Outlet of Evaporator Coil Installation TXV Type Product Usage Superheat SettingVIII. THERMOSTATIC-EXPANSION Valve BI-FLOW TXV IX. Coil RemovalTXV in Cooling Mode XI. Accumulator XII. Contaminant RemovalXIII. System Charging XIV. Checking ChargeRequired Vapor Temperature F Superheat Charging TableSuperheat Charging Method Subcooling Charging MethodCare and Maintenance Reliant AIR ConditionersReliant Heat Pumps Required LIQUID-LINE Temperature Page AIR Conditioner Troubleshooting Chart Heat Pump TROUBLESHOOTING-COOLING Cycle Heat Pump TROUBLESHOOTING-HEATING Cycle
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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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