American Standard HVAC TXC025C4 Manual

The American Standard TXC025C4 is a high-efficiency air conditioning condenser unit designed for residential and light commercial applications. This unit features a durable WeatherGuard™ cabinet, Spine Fin™ coil technology for enhanced heat transfer, and compatibility with American Standard's AccuLink™ communicating system. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Components 7. Operation 8. Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: WeatherGuard™ cabinet, Spine Fin™ coil, Copeland scroll compressor, low ambient control, and AccuLink™ communication port.

FeatureDescription
WeatherGuard™ CabinetDurable, corrosion-resistant steel construction
Spine Fin™ CoilEnhanced heat transfer for improved efficiency
Copeland Scroll CompressorReliable and efficient operation with low sound levels
AccuLink™ CommunicationCompatible with communicating thermostats for advanced diagnostics
Low Ambient ControlEnsures proper operation in cooler outdoor temperatures
Service ValvesFront-access for easy installation and maintenance
Sound InsulationReduced operational noise
High-Efficiency Filter DrierProtects system from moisture and contaminants
Factory-Installed FilterPre-installed for quick setup
Drain PortFor condensate removal in certain configurations

Installation

Unpack and inspect contents. Place on a level, stable pad.

  1. Position unit: Ensure minimum clearance of 24 inches on all sides for airflow.
  2. Connect refrigerant lines: Use proper brazing techniques and nitrogen purge.
  3. Connect electrical: Follow local codes; connect to disconnect and thermostat.
  4. Connect condensate drain: If required for installation.
  5. Evacuate and charge system: Deep vacuum to 500 microns; charge per data plate.

WARNING! Installation must be performed by a qualified HVAC technician. Ensure power is disconnected before servicing.

First-Time Setup

After installation, perform initial startup and configuration.

  1. Power on system: Restore power at disconnect and indoor unit.
  2. Set thermostat: Configure for cooling mode and desired temperature.
  3. Check operation: Verify compressor and fan operation; listen for unusual noises.
  4. Measure performance: Check superheat/subcooling per manufacturer specifications.
  5. Configure AccuLink™: If using communicating thermostat, follow setup wizard.

CAUTION! Do not operate without proper refrigerant charge. Ensure all panels are securely fastened.

Specifications

Controls and Settings

Primary control via thermostat. Unit includes internal safeties and diagnostic LEDs.

Thermostat Settings: COOL, OFF, HEAT (if paired with furnace), FAN (AUTO/ON).

Diagnostic LEDs: Located on control board; flash codes indicate system status.

AccuLink™ Features (if equipped): Remote diagnostics, system monitoring, efficiency reports, fault alerts.

Low Ambient Control: Automatically adjusts fan speed for proper head pressure in cool weather.

Connecting Components

Connect to indoor coil (evaporator), thermostat, power supply, and optional accessories.

  1. Turn off all power before making connections.
  2. Refrigerant lines: Connect liquid and vapor lines to matching indoor coil ports.
  3. Thermostat: Connect R, Y, G, C, O/B (if heat pump) per wiring diagram.
  4. Power: Connect L1 and L2 from disconnect to unit terminals.
  5. AccuLink™: Connect communication wires to dedicated terminals.

Tip: Use copper refrigerant lines only. Properly insulate suction line.

Operation

Normal operation is controlled by the thermostat.

  1. Set thermostat to COOL and desired temperature.
  2. Fan will start, followed by compressor after short delay.
  3. Unit will cycle to maintain set temperature.
  4. For continuous fan, set thermostat FAN to ON.
  5. To shut off, set thermostat to OFF.

WARNING! Do not attempt to operate if unusual noises, smells, or ice formation occurs. Turn off and call for service.

Maintenance

Regular maintenance ensures efficiency and longevity.

  1. Clean condenser coil: Annually, remove debris with soft brush or low-pressure water.
  2. Check electrical connections: Tighten if loose (power off).
  3. Inspect refrigerant lines: Look for signs of wear or oil spots.
  4. Clear area: Maintain 24-inch clearance around unit.
  5. Professional service: Recommended every 1-2 years for full inspection.

CAUTION! Always disconnect power before performing any maintenance. Do not use high-pressure water on coils.

Regulatory Information

UL Listed. Complies with applicable DOE and AHRI standards. Refrigerant handling must comply with EPA Section 608. This product contains R-410A, a non-ozone-depleting HFC refrigerant. For technical support, contact American Standard at 1-800-428-4328 or visit www.americanstandardair.com.

Troubleshooting

SymptomPossible CauseCorrective Action
Unit not runningPower loss, thermostat setting, tripped breakerCheck disconnect and breaker; verify thermostat is in COOL mode below room temp.
Reduced coolingDirty filter/coil, low refrigerant, restricted airflowClean filter and outdoor coil; check for obstructions; call for service.
Unit cycles on/off rapidlyDirty coil, overcharge, faulty sensorClean coil; check charge; may require professional diagnosis.
Unusual noiseLoose parts, debris in fan, failing motorTurn off power; inspect for loose panels or debris; call for service.
Ice on refrigerant linesLow airflow, low refrigerant chargeCheck indoor filter and coil; ensure blower is running; call for service.
LED fault code flashingSystem fault (pressure, temperature, electrical)Refer to service manual for specific flash pattern; call qualified technician.

Reset: Turn thermostat OFF for 5 minutes, then back to COOL. If problem persists, call for service.

Service: 1-800-428-4328; www.americanstandardair.com

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