American Standard HVAC TXA024C4 Manual

The American Standard TXA024C4 is a 2-ton air conditioning condenser unit designed for residential use, featuring high-efficiency operation, durable construction, compatibility with American Standard matched indoor units, R-410A refrigerant, weather-resistant cabinet, and quiet operation. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Durable galvanized steel cabinet, Copper tube/aluminum fin coil, High-efficiency scroll compressor, Low-sound fan motor, Electrical disconnect box, Refrigerant service valves.

Installation Requirements

Installation must be performed by a qualified HVAC technician in accordance with local codes and manufacturer instructions.

1. Select location: Level, stable pad (concrete or composite) with adequate clearance (min 24" on all sides, 48" above).
2. Electrical connection: Install dedicated circuit with proper disconnect within sight of unit.
3. Refrigerant lines: Connect to matched indoor unit using proper size copper lines.
4. Condensate drain: Ensure proper drainage from indoor unit.
5. Final check: Verify all connections, charge with R-410A, test operation.

WARNING! High voltage present. Disconnect all power before servicing. Refrigerant handling requires EPA certification.

First-Time Setup

After installation, perform initial startup and system check.

1. Power on: Ensure disconnect switch and indoor unit breaker are ON.
2. Thermostat setup: Set to COOL mode, temperature below room temp.
3. System check: Listen for normal compressor and fan operation.
4. Temperature verification: Check supply air temperature drop (typically 15-20°F).
5. Airflow check: Ensure adequate airflow at indoor registers.

CAUTION! Do not operate without proper refrigerant charge. Allow unit to stabilize for 10-15 minutes after startup.

Specifications

• Model: TXA024C4
• Cooling Capacity: 24,000 BTU/h
• Voltage: 208/230V, 1 Phase
• Minimum Circuit Ampacity: 15 amps
• Maximum Overcurrent Protection: 25 amps
• Refrigerant Type: R-410A
• Refrigerant Charge (Factory): See unit rating plate
• Operating Ambient Range: 55°F to 115°F
• Sound Level: ≤ 74 dB(A) at 3 feet
• Net Weight: Approx. 165 lbs
• Shipping Weight: Approx. 180 lbs

Controls and Settings

Primary control via thermostat. Unit has no user-accessible internal controls.

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

Unit Components: Compressor contactor, fan relay, capacitor(s), overload protection.

Safety Controls: High-pressure switch, low-pressure switch, compressor thermal overload, time delay relay (prevents short cycling).

LED Status Light (if equipped): Green = normal operation, flashing = fault condition (refer to service manual).

Connecting to Indoor Unit

Must be matched with approved American Standard indoor unit (air handler or furnace coil).

1. Refrigerant lines: Connect liquid and vapor lines using brazing with nitrogen purge.
2. Electrical: Connect low-voltage control wires (typically 24V) between indoor unit and condenser.
3. Line set: Properly size (typically 3/8" liquid, 3/4" vapor for 25' run).
4. Insulation: Insulate suction line completely.

Tip: Always evacuate system to 500 microns or less before charging with R-410A.

Operation Guidelines

For normal residential cooling operation.

1. Set thermostat to desired temperature in COOL mode.
2. Allow system to cycle normally (minimum 5-minute off delay between cycles).
3. Do not set thermostat below 70°F for extended periods.
4. Use FAN AUTO setting for efficiency, ON for continuous filtration.
5. During extreme heat (above 95°F), expect reduced capacity.
6. In winter, cover unit with breathable cover (optional) to protect from debris.

WARNING! Never operate without proper airflow. Keep condenser coil clean and unobstructed.

Maintenance Procedures

Annual maintenance by qualified technician recommended.

Care & Cleaning

Homeowner maintenance (power OFF at disconnect).

1. Clear area: Keep 24" minimum clearance around unit.
2. Remove debris: Leaves, grass clippings, etc. from top and sides.
3. Clean fins: Gently spray with garden hose from inside out (do not use pressure washer).
4. Straighten fins: Carefully use fin comb if accessible.

CAUTION! Do not use sharp objects on coil. Never operate with damaged fins or coil.

Regulatory Information

UL listed. Complies with DOE energy efficiency standards. Contains refrigerant subject to EPA Section 608 regulations. Manufactured to comply with applicable safety standards. For technical support, contact American Standard Heating & Air Conditioning at 1-800-428-4328 or visit www.americanstandardair.com.

Troubleshooting

Reset: Turn off at thermostat and disconnect for 5 minutes, then restart.

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