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General| Refrigerant | R-410A |
|---|---|
| Voltage | 208/230V |
| Maximum Operating Ambient Temperature (Cooling) | 115°F |
| Series | ASXC18**1AA |
| Type | Air Source Heat Pump |
| Warranty | 10-Year Limited Parts Warranty |
| Cooling Capacity (BTUh) | 18, 000 BTUh |
| Heating Capacity (BTUh) | 18, 000 BTUh |
| Compressor Type | Scroll Compressor |
| Cabinet Construction | Galvanized Steel |
| Coil Material | Aluminum/Copper |
General warnings and notices for users and technicians regarding safety and service procedures.
Explanation of the cooling cycle and its principles.
Diagram and explanation of the cooling cycle operation.
Explanation of the heating cycle and its operation.
Diagram and explanation of the heating cycle operation.
Chart for diagnosing cooling and heat pump issues.
Procedure for checking unit voltage.
Codes and descriptions for the 7-segment LED display.
Codes and descriptions for the 7-segment LED display.
Procedure to check the high-pressure control.
Using the diagnostic tool for ECM motors.
Electrical checks for low voltage control circuits.
Testing compressor operation.
Troubleshooting motor control circuits.
Procedure for checking compressor efficiency.
Checking expansion valve operation.
Procedure to check compressor efficiency.
Procedure for inspecting and checking wiring.
Checking UC control compressor contactor/relay contacts.
Checking voltage for pressure switches.
Electrical checks for high voltage power circuits.
Checks for motor control and end bell integrity.
Steps to take when a compressor burns out.
UC control diagnostics for Copeland units.
Checking the run capacitor.
Checking the reversing valve and solenoid.
Troubleshooting data line voltage and bias switches.
Testing capacitor resistance with a multimeter.
Testing the defrost control.
Explanation and checking of superheat.
Explanation and checking of subcooling.
Testing capacitor capacitance with a multimeter.
Testing temperature sensors.
Detailed explanation of cooling operation.
Accessing and interpreting diagnostic information.
Checking Emerson Ultratech ECM motors.
Troubleshooting the ComfortNet system network.
General procedure for checking the compressor.
Procedure to test the unloader function.
Methods for leak testing the system.
Chart for troubleshooting network communications.
Testing compressor winding resistance.
Procedure for evacuating the system.
Procedure for testing compressor grounding.
Procedure for charging the system with refrigerant.
Diagnostic codes for specific air handler control boards.
Diagnostic codes for PCBJA104 air handler control.
Codes related to unitary system diagnostics.
Procedure for checking bias voltage.
