American Standard HVAC 4A7L6036A1000A Manual

The American Standard 4A7L6036A1000A is a high-efficiency residential air conditioner unit designed for reliable cooling performance. This manual covers essential information for proper installation, operation, maintenance, and troubleshooting of the unit. Key sections include safety precautions, technical specifications, installation guidelines, wiring diagrams, startup procedures, maintenance schedules, and common troubleshooting steps.

Features at a Glance

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

Installation Guidelines

Unpack and inspect unit for shipping damage. Select a level, stable location with adequate clearance.

1. Position unit: Place on concrete pad or approved mounting system with minimum 24-inch clearance on all sides.
2. Connect refrigerant lines: Use clean, dehydrated copper tubing; braze with nitrogen purge.
3. Connect electrical: Run dedicated circuit from disconnect to unit terminals per local codes.
4. Connect condensate drain: Install proper drainage line with trap.
5. Evacuate and charge: Pull deep vacuum to 500 microns; charge with specified R-410A amount.

WARNING! Unit contains high voltage and pressurized refrigerant. Installation must be performed by qualified HVAC technician.

First-Time Startup

After installation, perform systematic startup procedure.

1. Verify electrical: Ensure power is off at disconnect; check all connections are tight.
2. Check refrigerant: Verify proper charge using subcooling method.
3. Start unit: Turn on power; set thermostat to cooling mode below room temperature.
4. Monitor operation: Check for proper airflow, refrigerant pressures, and temperature drop.
5. Test safety controls: Verify high-pressure and low-pressure switches function properly.

CAUTION! Do not bypass safety devices during startup. Wear appropriate personal protective equipment.

Technical Specifications

• Model: 4A7L6036A1000A
• Cooling Capacity: 3 Tons (36,000 BTU/H)
• SEER Rating: Up to 16 SEER
• Refrigerant: R-410A, 6.5 lbs factory charge
• Electrical: 208/230V, 1 Phase, 60 Hz
• Minimum Circuit Ampacity: 19.6 Amps
• Maximum Overcurrent Protection: 35 Amps
• Operating Temperature Range: 55°F to 115°F ambient
• Sound Rating: 74 dB(A) at 3 feet
• Dimensions: 35" L x 31" W x 31" H
• Shipping Weight: 215 lbs

Controls and Operation

Unit operates with compatible thermostat. No user controls on outdoor unit.

Thermostat Operation: Set to COOL mode with desired temperature. FAN setting can be AUTO or ON continuously.

LED Diagnostics: Control board has LED that flashes error codes: - 1 Flash: Normal operation - 2 Flashes: Low pressure fault - 3 Flashes: High pressure fault - 4 Flashes: Compressor overload - 5 Flashes: Communication error - Continuous Flash: Power issue

Compressor Protection: Built-in time delay prevents short cycling (minimum 5 minutes between cycles).

Electrical Connections

Electrical connections must comply with NEC and local codes.

1. Disconnect power at main panel before servicing.
2. Run proper gauge wire: 10 AWG copper minimum for 35 amp circuit.
3. Connect to terminal block: L1 and L2 for power, C for common.
4. Install properly sized disconnect within sight of unit.
5. Ground unit to grounding rod per local codes.

Tip: Use torque wrench on electrical connections to manufacturer specifications (typically 15-20 in-lbs).

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

1. Monthly: Clean area around unit; remove debris from coil fins.
2. Seasonal: Clean condenser coil with coil cleaner and gentle water spray.
3. Annual: Check refrigerant charge; inspect electrical connections; lubricate fan motor if required.
4. Check fan: Ensure blades are clean and balanced; replace if damaged.
5. Inspect cabinet: Check for corrosion or damage; touch up paint if needed.
6. Check mounting: Ensure unit remains level and secure.
7. Test operation: Verify proper cooling and safety switch operation.
8. Record maintenance: Keep log of all service performed.

WARNING! Always disconnect power before performing maintenance. Refrigerant handling requires EPA certification.

Safety Features

High-Pressure Switch: Cuts power to compressor if discharge pressure exceeds safe limit. Low-Pressure Switch: Protects compressor from operating with insufficient refrigerant. Compressor Overload: Internal thermal protection. Time Delay: Prevents short cycling. Fused Disconnect: Provides overcurrent protection.

Care & Cleaning

Keep unit clear of vegetation and debris. Clean condenser coil annually with approved coil cleaner. Use soft brush to straighten bent fins.

CAUTION! Do not use pressure washer on coil fins. Do not operate unit without fan guard in place.

Regulatory Information

UL Listed and complies with ANSI/ASHRAE standards. Contains refrigerant R-410A. Manufactured to meet DOE efficiency standards. For technical support, contact American Standard at 1-800-628-4516 or visit www.americanstandardair.com. This product may be covered by one or more U.S. patents.

Troubleshooting

Reset: Turn power off for 5 minutes to reset control board.

Service: 1-800-628-4516; www.americanstandardair.com