American Standard HVAC 4TXM2130A14N0A Manual

The American Standard 4TXM2130A14N0A is a high-efficiency, 2.5-ton, 13 SEER residential air conditioner condenser unit designed for reliable cooling performance. It features a durable, weather-resistant cabinet, a scroll compressor for quiet operation, and is compatible with a wide range of American Standard indoor coils and furnaces. This manual covers safety, installation, operation, maintenance, and troubleshooting for homeowners and qualified technicians.

Features at a Glance

Key components: Weather-resistant galvanized steel cabinet, Scroll compressor, Copper tube/aluminum fin coil, High and low-pressure service valves, Electrical disconnect box location.

Installation Guidelines

Installation must be performed by a qualified HVAC technician in accordance with all local codes and the National Electrical Code (NEC).

1. Site Selection: Place on a stable, level concrete pad or approved mounting system with adequate clearance (min 24" on all sides, 48" above).
2. Electrical Connection: Install a properly sized fused disconnect within sight of the unit. Connect power leads to the contactor in the control box.
3. Refrigerant Lines: Connect field-supplied, insulated copper linesets to the high and low-pressure service valves. Brazing must be done with nitrogen purge.
4. Indoor Unit Connection: Connect to a compatible American Standard indoor coil or air handler.
5. Final Check: Evacuate the system to a deep vacuum, charge with R-410A to the specified subcooling level, and check for leaks.

WARNING! Risk of electric shock and personal injury. Disconnect all power before servicing. Only trained personnel should handle refrigerant.

First-Time Startup

After installation, perform the following startup procedure:

1. Ensure all electrical connections are tight and the disconnect is OFF.
2. Fully open the refrigerant service valves (using a hex wrench).
3. Set the indoor thermostat to OFF and set the fan to AUTO.
4. Turn ON power at the disconnect switch.
5. Set the thermostat to COOL and a temperature below room temperature. The compressor and fan should start.
6. Verify correct operation: Check amp draw, system pressures, temperature drop across the indoor coil (typically 15-20°F), and listen for abnormal noises.

CAUTION! Do not operate the unit without the proper refrigerant charge or with blocked airflow. This can cause severe compressor damage.

Specifications

• Model: 4TXM2130A14N0A
• Cooling Capacity: 30,000 BTU/h (2.5 Tons)
• Efficiency: 13 SEER
• Refrigerant: R-410A (Charge: See unit rating plate)
• Electrical Data: 208/230V, 1 Phase, 60 Hz. Min Circuit Ampacity: 15.0, Max Fuse/Breaker: 25A.
• Operating Ambient Temp Range: 55°F to 115°F
• Sound Level: Approximately 74 dB(A)
• Liquid Line Connection: 3/8" SAE Flare
• Suction Line Connection: 3/4" SAE Flare
• Net Weight: Approx. 150 lbs

Controls and Operation

Primary control is via the indoor thermostat. The outdoor unit contains a control board with protective devices.

Internal Components & Controls: Contactor, Capacitor (dual-run for fan and compressor), Overload Protector, High/Low Pressure Switches, Control Board with LED status light.

Thermostat Operation: Set to COOL, AUTO fan, and desired temperature. The system will cycle automatically. Use OFF position to stop cooling.

LED Status Light: Located on the control board. A steady blink indicates normal operation. Specific blink codes indicate faults (see Troubleshooting).

Connecting to Indoor Unit

This condenser is designed to work with matching American Standard indoor coils (e.g., 4TXCB003DS3HCA) or air handlers.

1. Ensure the indoor unit is properly installed and the drain line is clear.
2. Run the correct size refrigerant lineset between units. Insulate the suction line.
3. Connect the low-voltage control wires (typically 18- gauge) from the indoor unit's control board to the outdoor unit's contactor and control board terminals (Y, C, etc.).
4. Follow the indoor unit's wiring diagram precisely.

Tip: A properly sized and installed lineset is critical for system efficiency and longevity. Avoid sharp bends.

Maintenance Procedures

Regular maintenance by a qualified technician is recommended annually.

1. Turn Off Power: Disconnect at the service switch.
2. Clean the Coil: Gently brush debris from the exterior coil fins. Use a coil cleaner and rinse with low-pressure water from the inside out.
3. Straighten Fins: Use a fin comb to straighten any bent coil fins.
4. Check Electrical: Inspect wiring for damage or corrosion. Tighten connections. Check capacitor ratings.
5. Check Refrigerant Charge: Measure subcooling/superheat and adjust if necessary.
6. Check Fan Motor & Blades: Ensure blades are secure and spin freely. Lubricate motor if required (check specifications).

WARNING! Do not use a pressure washer or harsh chemicals on the coil. Do not operate the unit without the fan guard in place.

Safety Features

Built-in protection devices: High-pressure switch, Low-pressure switch, Compressor overload protector, Internal time delay (typically 5 minutes). These features automatically shut down the system to prevent damage under fault conditions.

Care & Cleaning

Homeowner care: Keep the area around the unit clear of leaves, grass clippings, shrubs, and debris (at least 24 inches). Gently hose off the exterior coil fins at the beginning of the cooling season if visibly dirty.

CAUTION! Always turn off power at the disconnect before cleaning near the unit. Do not insert sticks or tools into the fan blades or coil.

Regulatory Information

This product complies with applicable U.S. safety and performance standards. R-410A refrigerant is non-ozone depleting. Proper refrigerant recovery and recycling is required by EPA Section 608 regulations. The unit contains materials that may be recyclable. For warranty service or technical support, contact your local American Standard dealer or visit www.americanstandardair.com.

Troubleshooting

LED Blink Codes (Typical): 1 Blink = Normal, 2 Blinks = Low Pressure Lockout, 3 Blinks = High Pressure Lockout, 4 Blinks = Compressor Overload. Consult service manual for exact codes.

Service: Contact your local American Standard dealer. For product information: www.americanstandardair.com.