American Standard HVAC 5A7A5030A Manual

The American Standard 5A7A5030A is a high-efficiency residential air conditioner unit with a 2.5-ton capacity, featuring R-410A refrigerant, a scroll compressor, durable corrosion-resistant cabinet, and compatibility with American Standard communicating thermostats for optimized performance. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Outdoor condenser unit with scroll compressor, corrosion-resistant coil, high and low pressure service ports, liquid and suction line connections, and control panel.

Installation

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

1. Select Location: Choose level area with adequate clearance (min 24 inches on all sides).
2. Set Pad: Place on concrete pad or approved mounting system.
3. Connect Refrigerant Lines: Connect pre-charged linesets to liquid and suction ports; torque to specification.
4. Connect Electrical: Run 208/230V power to disconnect box; connect to unit terminals (L1, L2, Ground).
5. Connect Control Wiring: Run low-voltage thermostat wires to control board.
6. Evacuate and Charge: Evacuate system, check for leaks, charge per manufacturer specifications.

WARNING! Installation must be performed by a qualified HVAC technician. Follow all local codes and safety procedures.

First-Time Setup

After installation, perform initial startup and system check.

1. Power On: Ensure disconnect switch and indoor unit are powered.
2. Thermostat Setup: Configure compatible thermostat (set mode to COOL, desired temperature).
3. System Check: Listen for normal compressor startup; check airflow at indoor registers.
4. Verify Operation: Allow unit to run for 15 minutes; check temperature drop across coil.
5. Set Fan Speed: Adjust blower speed at indoor air handler if necessary for proper airflow.

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

Specifications

• Model: 5A7A5030A
• Cooling Capacity: 2.5 Tons (30,000 BTU/h)
• SEER Rating: Up to 16 SEER (depending on matched system)
• Refrigerant Type: R-410A
• Operating Voltage: 208/230V, 1 Phase, 60 Hz
• Compressor: Scroll type
• Fan Motor: Permanent split capacitor (PSC)
• Maximum Fuse/Circuit Breaker: 25 Amps
• Liquid Line Size: 3/8"
• Suction Line Size: 3/4"
• Operating Ambient Temp Range: 55°F to 115°F
• Sound Level: 72 dB(A) at 3 feet

Controls and Settings

Primary control via compatible thermostat. Unit includes internal control board with LED status indicator.

Thermostat Settings: MODE (COOL, OFF, FAN), FAN (AUTO, ON), TEMPERATURE setpoint.

Unit Control Board: Provides system monitoring, fault codes via LED flash patterns.

LED Status Indicator: Steady on = normal operation. Flash patterns indicate specific faults (see troubleshooting).

Dip Switch Settings: May be present for optional configurations (fan delay, etc.).

Connecting System Components

This outdoor unit must be connected to a matching indoor air handler or furnace coil.

1. Turn off all power at disconnect and indoor unit.
2. Connect Refrigerant Lines: Braze or flare connections per code. Use nitrogen purge during brazing.
3. Connect Electrical: Run line voltage from disconnect to unit terminals. Connect low-voltage thermostat wires (Y, C, O/B, etc.) to control board.
4. Connect Condensate Drain: Ensure indoor unit drain line is properly installed and routed.
5. Leak Test and Evacuate: Pressure test with nitrogen, evacuate to 500 microns or less.
6. Charge System: Weigh in correct refrigerant charge per unit data plate and line length.

Tip: Label all wires before disconnecting. Use proper torque on electrical terminals.

Operating Modes

Unit operates in cooling mode when signaled by thermostat.

1. Cooling Mode: Thermostat calls for cooling, engages compressor and outdoor fan.
2. Fan Mode: Indoor fan can run continuously (FAN ON) or cycle with cooling (FAN AUTO).
3. Off Mode: System idle, compressor and fan off.
4. Defrost Cycle (if heat pump variant): Not applicable to straight cool model.

Normal Operation Signs: Steady hum from compressor, airflow from outdoor fan, cool air from indoor vents, condensate drain dripping.

WARNING! Do not switch thermostat between HEAT and COOL rapidly. Allow 5-minute delay between cycles.

Maintenance Procedures

Regular maintenance ensures efficiency and longevity. Perform at least annually.

1. Turn off power at disconnect.
2. Clean Outdoor Coil: Remove debris, gently clean fins with coil cleaner and water spray (from inside out).
3. Straighten Fins: Use fin comb if bent.
4. Check Electrical Connections: Tighten any loose terminals.
5. Inspect Refrigerant Lines: Look for insulation damage, oil stains indicating leaks.
6. Check Mounting Pad: Ensure unit is level, clear of vegetation.
7. Lubrication: Fan motor may have sealed bearings; check manufacturer instructions.

Professional Service Recommended: Annual inspection by qualified technician for refrigerant charge check, amp draw, and system performance.

Care & Cleaning

Keep unit clear of debris, leaves, and snow. Clean outdoor coil annually.

CAUTION! Always disconnect power before cleaning. Do not use high-pressure water spray directly on electrical components or fan motor. Do not bend fins excessively.

Regulatory Information

This product complies with applicable U.S. safety and performance standards. Contains refrigerant R-410A. Proper recovery and recycling required by EPA Section 608. Manufactured by American Standard Heating & Air Conditioning. For support, visit www.americanstandardair.com or contact customer service at 1-800-228-4974.

Troubleshooting

Reset: Turn thermostat to OFF, turn off power at disconnect for 30 seconds, restore power, set thermostat to COOL.

Service: For technical support or warranty: 1-800-228-4974; www.americanstandardair.com