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General| Stages | Single |
|---|---|
| Refrigerant | R-410A |
| Voltage | 208/230V |
| Cooling Capacity (BTU/h) | 18, 000 - 60, 000 BTU/h |
| Heating Capacity (BTU/h) | 18, 000 - 60, 000 BTU/h |
| Warranty | 10-year parts limited warranty upon timely registration |
| Phase | Single |
| Product Type | Residential Air Conditioners and Heat Pumps |
Explains the nomenclature for model numbers of AC and heat pumps.
Explains the nomenclature for serial numbers.
Specifies requirements for residential new construction installations.
Details requirements for replacing R22 systems with Puron systems.
Lists accessories required for AC units in different applications.
Lists accessories required for Heat Pumps in different applications.
Electric heater to keep compressor oil warm during off cycles.
Safety switch to stop unit operation when evaporator freezes up.
SPDT relay to switch low-ambient controller out of circuit.
Controls condenser fan speed based on condensing temperature.
Enables thermostat to display outdoor temperature.
Modulating flow-control valve metering refrigerant flow.
Keeps indoor blower operating after compressor cycles off.
Prevents cross currents from causing abnormal control operation.
Alleviates nuisance opening of low-pressure switch.
Illustrates wind baffle construction and dimensions for various units.
Describes three basic cabinet designs for AC and heat pumps.
Procedures for accessing internal components by removing covers and fan motor.
Identifies components within the AC control box.
Identifies components within the Heat Pump control box.
Shows locations of various labels on Mid-Tier/Deluxe units.
Shows locations of various labels on Entry units.
Guidelines for using aluminum wire in branch circuits and connections.
Explains the function and troubleshooting of contactors.
Details capacitor testing procedures and safety precautions.
Protects against low suction pressures in AC systems.
Protects against excessive condenser coil pressure in AC & HP.
Detects loss of charge in heat pump systems.
Describes the HK32EA001 control board for defrost timing and operation.
Field-selectable defrost mode to eliminate noise during defrost.
Protects compressor from short cycling with a 5-minute delay.
Explains cooling and heating operation sequences for the HK32EA003 control.
Describes the time/temperature defrost cycle initiation and termination.
Procedure to initiate a forced defrost cycle.
Defrost mode to reduce noise during defrost initiation and restart.
Classifies compressor failures into mechanical and electrical types.
Discusses mechanical issues where the motor appears normal but compressor doesn't function.
Describes failure mode where motor draws locked rotor current and cycles off.
Describes failure where motor runs but compressor doesn't pump refrigerant.
Lists various internal and external factors that can cause abnormal compressor noise.
Explains how to identify terminals C, S, and R for single-phase motors.
Tests for breaks in internal motor winding wires.
Tests for shorts to ground in motor windings.
Tests for shorts between motor winding wires.
Discusses Puron refrigerant safety, handling, and system requirements.
Precautions for protecting synthetic roofing from compressor oil.
Basic points and techniques for brazing refrigeration system components.
Explains the function of service valves and the pumpdown procedure.
Procedures for installing a liquid-line filter drier in AC indoor coils.
Procedures for installing a liquid-line filter drier in HP indoor coils.
Discusses suction line filter driers for Puron systems and their usage.
Details TXV operation, mounting, and installation procedures.
Steps for replacing TXV on indoor coils for units manufactured before 2006.
Steps for replacing TXV on indoor coils for units manufactured after 2006.
Methods for detecting refrigerant leaks using electronic detectors and soap bubbles.
Steps for removing evaporator and condenser coils for servicing.
Method for removing non-condensables and moisture using a vacuum pump.
Method for evacuating systems with limited vacuum pump capabilities.
Initial checks for proper airflow and subcooling before superheat diagnosis.
Diagnosing and resolving low superheat conditions in TXV systems.
Diagnosing and resolving high superheat conditions in TXV systems.
Diagnosing and resolving hunting superheat, typically an application issue.
Selects proper airflow for 2-stage units with non-communicating thermostats.
Selects proper airflow for FV4C fan coils used with 2-stage units.
Provides general information, including low ambient operation.
Details low ambient cooling capabilities for Infinity controlled systems.
Explains defrost control options and operation cycles.
Explains defrost modes to reduce noise during transitions.
Initiates a defrost cycle manually.
Guidelines for checking and adjusting refrigerant charge.
Describes system operation in cooling and heating cycles.
Explains the operation of the modulated scroll compressor.
How a utility device interrupts compressor operation via Infinity control.
Details the operation of the fan motor and its ECM variable speed control.
Senses outdoor air temperature to activate system functions.
Senses coil temperature for defrost and operation monitoring.
Identifies control box components like contactors and capacitors.
Details how incoming power is attached and grounding requirements.
Addresses issues when communication with the User Interface is lost.
Explains the function and installation of the model plug.
Actions taken when the control board fails or is detected faulty.
System response to low line voltage conditions.
Detects loss of 230v power to the compressor contactor.
Monitors compressor motor run capacitor voltage status.
Detects if the contactor is stuck closed when no demand exists.
Detects thermal protector opening and system lockout.
Addresses issues with contactors being open or closed improperly.
Verifies proper switching between low and high compressor stages.
Procedure to test the compressor's internal unloader mechanism.
Compares sensors and checks for out-of-range conditions.
Explains default system operation when thermistors fail.
Details operating ambient limits for cooling and heating.
How to select proper airflow for ECM furnaces.
How to select proper airflow for variable speed furnaces.
How to select proper airflow for FV4C fan coils.
Describes system operation in cooling and heating cycles.
Explains compressor capacity modulation and operation.
Explains defrost modes to reduce noise during transitions.
Details defrost control functionality and forced defrost procedures.
Checks proper switching between low and high stages for 25HCB6 units.
Procedure to test the compressor's internal unloader mechanism.
Steps for cleaning the outdoor coil to maintain performance.
Procedures for cleaning the fan motor and blade.
