Bryant R-22 service manual Heat Pump TROUBLESHOOTING-COOLING Cycle

Page 49

HEAT PUMP

TROUBLESHOOTING–COOLING CYCLE

NO COOLING OR

INSUFFICIENT

COOLING

COMPRESSOR WILL NOT RUN

COMPRESSOR

RUNS BUT

CYCLES ON

INTERNAL

OVERLOAD

COMPRESSOR

RUNS BUT

INSUFFICIENT

COOLING

OUTDOOR FAN

HIGH SUCTION

HIGH SUCTION

CONTACTOR

OPEN

POWER SUPPLY

DEFECTIVE

LOW-VOLTAGE TRANSFORMER

OPEN

THERMOSTAT

OPEN CONTROL

CIRCUIT

LOSS OF

CHARGE

CONTACTOR OR COIL DEFECTIVE

LOOSE

CONTACTOR

CLOSED

COMPRESSOR POWER SUPPLY OPEN

LOOSE LEADS AT

COMPRESSOR

FAULTY START

GEAR (1-PH)

OPEN SHORTED OR GROUNDED COMPRESSOR MOTOR WINDINGS

COMPRESSOR

STUCK

COMPRESSOR

INTERNAL

PROTECTION

OPEN

STOPPED OR CYCLING ON OVERLOAD

OUTDOOR AIR

RESTRICTED OR RECIRCULATING

DAMAGED OR

STUCK

REVERSING

VALVE

RESTRICTED DISCHARGE TUBE

OVERCHARGE

OR NON-

CONDENSABLES

IN SYSTEM

LOW

REFRIGERANT

CHARGE

LINE VOLTAGE TOO HIGH OR LOW

LOOSE LEAD

AT FAN MOTOR

DEFROST RELAY N.C. CONTACTS OPEN

MOTOR

DEFECTIVE

INCORRECT

OFM

CAPACITOR

DEFECTIVE

DEFROST

THERMOSTAT

LOW SUCTION

PRESSURE

DIRTY AIR

FILTERS

DUCT

RESTRICTED

DAMPERS

PARTLY CLOSED

INDOOR COIL

FROSTED

SLIGHTLY

LOW ON

REFRIGERANT

LIQUID LINE

SLIGHTLY

RESTRICTED

LOW HEAD

PRESSURE

REVERSING

VALVE HUNG UP

OR INTERNAL

LEAK

DEFECTIVE

COMPRESSOR

VALVES

INTERNAL

PRESSURE

RELIEF OPEN

LOW

SUPERHEAT

UNIT

OVERCHARGED

INCORRECT

SIZE

PISTON

ELECTRICAL CONNECTION

DEFECTIVE RUN

CAPACITOR

DEFECTIVE RUN

CAPACITOR

COMPRESSOR

BEARINGS

HIGH

SUPERHEAT

PISTON

RESTRICTED

INCORRECT

SIZE

PISTON

INDOOR COIL

STRAINER

RESTRICTED

INDOOR

BLOWER MOTOR

DEFECTIVE OR CYCLING ON OL

A90207

Fig. 53—Heat-Pump Troubleshooting Chart — Cooling Cycle

—49—

Image 49
Contents Safety Considerations Table of ContentsAccessory Descriptions II. ADD-ON Replacement RetrofitVIII. LOW-AMBIENT Pressure Switch III. Seacoast for AIR Conditioners onlyIX. Wind Baffle II. Interconnecting Tubing SizingCoastal Filter XI. Support FeetMatl 20 GA Steel Matl 18 GA SteelSmall Unit Size Unit HeightMedium Baffle LeftEstimated Percentage of Nominal COOLING-CAPACITY Losses Wind Baffle Dimensions for Cube UnitsIII. Metering Device Sizing Fitting Losses in Equivalent FT IV. LIQUID-LINE Solenoid and Tubing CONFIGU- RationExample Calculation of Indoor Piston noLIQUID-LINE Solenoid KIT Part Numbers Common Piston SizesCharging Information VI -SPEED ApplicationsPositions 6 through 10-Serial Number II. Serial Number IdentificationCabinet II. Remove FAN-MOTOR ASSEMBLY-BEFORE 1/1/92Remove TOP COVER-BEFORE 1/1/92 III. Information PLATE-RELIANT ProductsVI. Remove FAN-MOTOR ASSEMBLY-AFTER 1/1/92 Basic Cabinet Designs Electrical Aluminum WireII. Contactors Information PlateStart Capacitors and PTC Devices III. CapacitorsIV. Cycle Protector Temporary Capacitance BoostCrankcase Heater VI. TIME-DELAY RelayLOW-PRESSURE Switch VII. Pressure SwitchesLIQUID-LINE Pressure Switch HIGH-PRESSURE SwitchVIII. Defrost Thermostats IX. DEFROST-CONTROL BoardCES0110063 CES0130024 CES0110063 Defrost ControlSPEED-UP Defrost Control SPEED-UP Timing SEParameter Minimum Maximum XI. Service Alarm Control Board Defrost Timer SettingsFAN Motors XII. Outdoor Thermostats OF2 CESO130076-00Aeroquiet System and Aeromax TOP FAN PositionXIII. Compressor Plug Service Alarm Wiring ConnectionsReciprocating Compressor XIV. LOW-VOLTAGE TerminalsMechanical Failures II. Electrical Failures IV. Compressor Removal and Replacement III. System Cleanup After BurnoutII. Troubleshooting Copeland Scroll Compressor FeaturesCompressor OIL Recharge III. Discharge ThermostatIII. Troubleshooting Millennium Scroll Compressor FeaturesIV. Scroll COMPRESSOR, 3-PHASE Monitor II. Compressor ProtectionCont Equip GND CAP OFM Logic IFR Indoor External Power Supply 24CESO130075 Cont HPS LPSAmbient Temperature for HIGH- LOW-SPEED Operation Function Light Code and Display Location Factory Defaults III. Factory DefaultsCompressor PTC Ranges IV. Major ComponentsTWO-SPEED Compressor Winding Resistance AT 70F ± VI. TroubleshootingLED FUNCTION/MALFUNCTION Lights II. Leak Detection Refrigeration System Refrigeration CycleLow-Speed Windings III. Brazing 24V PIN Connection TroubleshootingCooling Cycle AllIV. Service Valves Service ValvesReliant and Cube Products Produced Reliant Products Except 1992 ProductionVI. Reversing Valve VII. THERMOSTATIC-EXPANSION Valves TXV Reversing ValveInstallation TXV Type Product Usage Superheat Setting TXV Superheat Setting AT Outlet of Evaporator CoilVIII. THERMOSTATIC-EXPANSION Valve BI-FLOW TXV IX. Coil RemovalTXV in Cooling Mode XII. Contaminant Removal XI. AccumulatorXIII. System Charging XIV. Checking ChargeSuperheat Charging Table Required Vapor Temperature FSuperheat Charging Method Subcooling Charging MethodReliant AIR Conditioners Care and MaintenanceReliant 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.