American Standard HVAC TXA025C4 Manual

The American Standard TXA025C4 is a high-efficiency air conditioning condenser unit designed for residential applications. This 2-ton unit features a scroll compressor, durable corrosion-resistant coating, and compatibility with American Standard matched indoor coils and furnaces for optimal performance. Below are key sections covering safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Scroll compressor, aluminum fins with Spine Fin™ technology, protective grille, liquid and suction line service valves, and weather-resistant cabinet.

Installation Requirements

Unpack and inspect unit for shipping damage. Select appropriate location.

1. Location: Place on level concrete pad or approved mounting system with adequate clearance (minimum 24 inches on all sides).
2. Electrical: Install weatherproof disconnect box within sight of unit per local codes.
3. Refrigerant Lines: Connect pre-charged lineset to indoor coil, ensuring proper insulation.
4. Condensate Drain: Ensure proper drainage from indoor unit to prevent water damage.

WARNING! Installation must be performed by qualified HVAC technician. Improper installation can cause injury or equipment failure.

First-Time Startup

After installation, perform system startup following proper sequence.

1. Electrical Check: Verify correct voltage at disconnect box (208/230V single phase).
2. Refrigerant Check: Ensure proper charge using superheat/subcooling method.
3. Thermostat Setup: Set to COOL mode with temperature below room temperature.
4. System Test: Start unit, check for proper airflow, cooling operation, and unusual noises.

CAUTION! Do not operate without proper refrigerant charge. Ensure all electrical connections are tight.

Specifications

• Model: TXA025C4
• Cooling Capacity: 24,000 BTU/h (2 tons)
• SEER Rating: Up to 16 SEER with matched system
• Refrigerant: R-410A
• Electrical Requirements: 208/230V, 1 phase, 60 Hz
• Maximum Fuse/Circuit Breaker: 20 amps
• Operating Ambient Temperature: 55°F to 115°F
• Sound Level: As low as 72 dB
• Net Weight: 145 lbs
• Dimensions (HxWxD): 28" x 31" x 31"

Controls and Operation

Primary control through thermostat. Unit includes high and low pressure switches for protection.

Thermostat Settings: COOL, FAN (ON/AUTO), temperature setting.

Unit Operation: Compressor and fan cycle based on thermostat demand. Compressor has built-in time delay to prevent short cycling. Fan operates during cooling cycle and for brief period after compressor shuts off.

Electrical Connections

Connect power supply to unit disconnect box following wiring diagram on unit panel.

1. Turn off all power at main breaker before making connections.
2. Run appropriate gauge wire from disconnect to unit (minimum 12 AWG for 20 amp circuit).
3. Connect ground wire to unit ground lug.
4. Verify proper voltage at unit before closing disconnect.

Tip: Use copper conductors only. Follow National Electrical Code and local regulations.

Refrigerant Charging

System comes pre-charged for 15 feet of lineset. Additional charge may be required.

1. Connect gauges to service ports (high side and low side).
2. Measure superheat (for fixed orifice) or subcooling (for TXV systems).
3. Add refrigerant slowly if needed, monitoring pressures and temperatures.
4. Never overcharge system; refer to charging chart in installation manual.

WARNING! Only EPA-certified technicians should handle refrigerant. Use proper recovery equipment.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

1. Monthly: Clean debris from around unit, check for unusual noises.
2. Seasonal: Clean condenser coil with fin comb or soft brush.
3. Annual: Professional inspection including electrical connections, refrigerant charge, and coil cleaning.
4. Winter: Use protective cover if unit will not be used during freezing temperatures.

Care & Cleaning

Turn off power at disconnect before cleaning. Use garden hose to gently rinse condenser coil from inside out. Straighten bent fins with fin comb.

CAUTION! Do not use pressure washer; it can damage fins. Keep vegetation at least 24 inches from unit.

Regulatory Information

UL listed. Complies with applicable DOE standards. Contains refrigerant R-410A. Installation must comply with local building codes. For technical support, contact American Standard at 1-800-926-9667 or visit www.americanstandardair.com. Register product for full warranty coverage.

Troubleshooting

Reset: Turn off power at disconnect for 5 minutes, then restore power.

Service: 1-800-926-9667; www.americanstandardair.com