American Standard HVAC 5A6H7024A1000A Manual

The American Standard 5A6H7024A1000A is a high-efficiency residential air conditioner unit designed for reliable cooling performance. This manual covers essential information for the safe installation, operation, maintenance, and troubleshooting of this model. Key sections include specifications, installation guidelines, electrical wiring, start-up procedures, maintenance schedules, and error code diagnostics.

1. Features at a Glance 2. Installation Guidelines 3. First-Time Start-Up 4. Specifications 5. Controls and Operation 6. Electrical Connections 7. Maintenance Procedures 8. Safety Features 10. Regulatory Information 11. Troubleshooting & Error Codes

Features at a Glance

Key components: High-efficiency scroll compressor, corrosion-resistant coil, sound-reducing fan, weatherproof cabinet, and integrated control board.

Feature	Description
Compressor Type	High-Efficiency Scroll Compressor
Refrigerant	R-410A
Coil Construction	Corrosion-Resistant Copper Tubing with Aluminum Fins
Fan Motor	Permanent Split Capacitor (PSC) with Sound Insulation
Cabinet	Galvanized Steel with Powder Coat Paint
Electrical Disconnect	Field Supplied (Required within sight of unit)
Control Board	Integrated with LED Status Indicator
Operating Range	Designed for outdoor ambient temperatures up to 115°F
Sound Rating	Reduced sound levels for quiet operation
Warranty	Limited 10-Year Compressor Warranty, 5-Year Parts Warranty*

Installation Guidelines

Unpack and inspect unit for shipping damage. Select a suitable outdoor location.

Location: Place on a level, stable pad (concrete or composite) with adequate clearance for airflow (min 24" on all sides, 48" above).
Lifting: Use appropriate lifting straps or a forklift. Do not lift by refrigerant lines or electrical conduit.
Refrigerant Lines: Connect pre-charged linesets using proper brazing techniques under dry nitrogen purge. Ensure lines are insulated.
Condensate Drain: Connect drain line per local code, ensuring proper slope away from unit.
Electrical: Install a properly sized, weatherproof electrical disconnect within sight of the unit.

WARNING! Installation must be performed by a qualified HVAC technician in accordance with all national and local codes. Incorrect installation can cause property damage, personal injury, or death.

First-Time Start-Up

After installation is complete, perform the following start-up procedure.

Pre-Start Check: Verify all electrical connections are tight and correct. Ensure refrigerant lines are connected and service valves are open.
Power On: Turn on power at the disconnect and indoor air handler/furnace.
System Check: Set indoor thermostat to "Cool" mode and a temperature below room temperature. The compressor and fan should engage.
Measurements: Using proper gauges, measure superheat/subcooling to verify correct refrigerant charge. Measure voltage and amperage at the compressor and fan.
Final Inspection: Listen for unusual noises, check for vibrations, and verify condensate is draining properly.

CAUTION! Do not attempt start-up without proper HVAC training and tools. High voltage and refrigerant under pressure are present.

Specifications

Model Number: 5A6H7024A1000A
Cooling Capacity: 2 Tons (24,000 BTU/H)
SEER Rating: Up to 16 SEER
Refrigerant Type & Charge: R-410A, Factory Pre-Charged*
Electrical Data: 208/230V, 1 Phase, 60 Hz
Minimum Circuit Ampacity (MCA): 15.0 Amps
Maximum Overcurrent Protection (MOP): 25 Amps
Compressor Rated Load Amps (RLA):12.5 Amps
Fan Motor Rated Load Amps (RLA):1.0 Amps
Operating Ambient Temperature Range: 55°F to 115°F

Sound Level: 72 dB(A) at 3 ft

Net Weight: 156 lbs (70.8 kg)

*Additional field charging may be required based on lineset length.

Controls and Operation

Unit operation is controlled by the indoor thermostat. The outdoor unit contains an integrated control board for system protection and diagnostics.

Normal Operation: When the thermostat calls for cooling, it sends a 24V signal to the outdoor unit. The control board engages the fan motor and, after a short delay, the compressor contactor.

LED Status Indicator: Located on the control board. A steady light indicates normal operation. Flashing patterns indicate specific fault conditions (see Troubleshooting).

Safety Controls: The unit includes high-pressure switch, low-pressure switch, compressor overload, and anti-short cycle timer (typically 5 minutes).

Electrical Connections

All wiring must comply with NEC (NFPA 70) and local codes.

Disconnect all power before servicing.

Run appropriate gauge copper conductors from the disconnect to the unit's terminal block (see specs for MCA/MOP).

Connect Line 1 (L1), Line 2 (L2), and Ground (GND) to the corresponding terminals.

Connect the 24V control wires from the indoor unit (typically Y for cooling, C for common) to the low-voltage terminal block.

Ensure all connections are tight and the wiring diagram (located on the unit's access panel) is followed precisely.

Tip: Use a torque screwdriver on terminal block connections to manufacturer's specification.

Maintenance Procedures

Regular maintenance is essential for efficiency and longevity. Perform these tasks at least annually, preferably before the cooling season.

Power Off: Turn off power at the disconnect.

Clean Condenser Coil: Remove debris (leaves, grass). Gently clean the coil fins from the inside out using a soft brush and coil cleaner. Rinse with low-pressure water. Do not bend fins.

Straighten Fins: Use a fin comb to straighten any bent coil fins.

Check Fan Motor & Blades: Inspect for cracks or damage. Ensure the fan spins freely. Lubricate motor per manufacturer instructions if applicable (many are permanently lubricated).

Inspect Electrical: Check for loose connections, corrosion, or signs of overheating at the contactor and terminal block.

Clear Area: Maintain a 24-inch minimum clearance around the unit, free of vegetation and obstructions.

WARNING! Always disconnect power before performing any maintenance. The fan can start automatically.

Safety Features

This unit incorporates multiple safety devices to protect the system and property.

High-Pressure Switch: Opens electrical circuit if discharge pressure becomes excessive.

Low-Pressure Switch: Opens electrical circuit if suction pressure drops too low (indicative of low charge or restriction).

Compressor Overload: Internal protector in the compressor windings.

Anti-Short Cycle Timer: Prevents compressor from restarting for approximately 5 minutes after shutdown to protect it.

Fused Disconnect: Required field-installed component for overcurrent protection.

Regulatory Information

This product complies with applicable U.S. safety and performance standards. The refrigerant used (R-410A) is regulated by the EPA under Section 608 of the Clean Air Act. Only EPA-certified technicians may service or dispose of this equipment. Proper recovery and recycling of refrigerant is mandatory. For technical support or warranty registration, visit www.americanstandardair.com or contact American Standard at 1-800-526-2200.

Troubleshooting & Error Codes

Refer to the LED flash pattern on the control board for diagnostics.

Symptom / LED Code Possible Cause Corrective Action

Unit will not start (No LED) No power Check disconnect, breaker, and indoor unit power. Verify 24V signal at Y terminal.

LED Flashing 1 Time Loss of charge / Low pressure Check for refrigerant leaks. Verify pressures with gauges.

LED Flashing 2 Times High pressure Check for dirty condenser coil, restricted airflow, or overcharge.

LED Flashing 3 Times Compressor overload/open Check compressor windings. Allow unit to cool. Check for proper voltage.

LED Flashing 4 Times Reverse polarity or low voltage Check L1 and L2 connections at disconnect and unit. Measure supply voltage.

LED Flashing 5 Times Control board fault Check all board connections. May require board replacement.

Unit runs but does not cool Low refrigerant, restricted filter, dirty coils Check air filter, evaporator/condenser coils, and system pressures.

Fan runs, compressor does not Contactor failure, compressor overload, low pressure switch open Check for 24V at contactor coil. Check pressures and compressor windings.

Reset: Most faults will auto-reset after the condition is corrected and the anti-short cycle timer expires. Turning power off and on may also reset some faults.

Service: For complex issues, contact a qualified American Standard dealer. 1-800-526-2200; www.americanstandardair.com

American Standard HVAC 5A6H7024A1000A Manual © - All Rights Reserved 2025

Symptom / LED Code	Possible Cause	Corrective Action
Unit will not start (No LED)	No power	Check disconnect, breaker, and indoor unit power. Verify 24V signal at Y terminal.
LED Flashing 1 Time	Loss of charge / Low pressure	Check for refrigerant leaks. Verify pressures with gauges.
LED Flashing 2 Times	High pressure	Check for dirty condenser coil, restricted airflow, or overcharge.
LED Flashing 3 Times	Compressor overload/open	Check compressor windings. Allow unit to cool. Check for proper voltage.
LED Flashing 4 Times	Reverse polarity or low voltage	Check L1 and L2 connections at disconnect and unit. Measure supply voltage.
LED Flashing 5 Times	Control board fault	Check all board connections. May require board replacement.
Unit runs but does not cool	Low refrigerant, restricted filter, dirty coils	Check air filter, evaporator/condenser coils, and system pressures.
Fan runs, compressor does not	Contactor failure, compressor overload, low pressure switch open	Check for 24V at contactor coil. Check pressures and compressor windings.