American Standard HVAC 5A7A7036A1000A Manual

The American Standard 5A7A7036A1000A is a high-efficiency residential air conditioning unit designed for reliable cooling performance. This manual covers safety information, installation guidelines, operational procedures, maintenance schedules, and troubleshooting for this specific model. Key features include a scroll compressor, aluminum coil construction, compatibility with variable-speed air handlers, and a high SEER rating for energy savings.

1. Features at a Glance 2. Installation Guidelines 3. First-Time Startup 4. Specifications 5. Controls and Settings 6. Connecting to Thermostat & Ductwork 7. Operational Modes 8. Maintenance Procedures 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Outdoor condensing unit, Scroll compressor, Aluminum Spine Fin™ coil, Liquid and suction line service valves, High and low-pressure switches.

Feature	Description
Scroll Compressor	Provides quiet, reliable, and efficient operation
Aluminum Spine Fin™ Coil	Corrosion-resistant for enhanced durability and heat transfer
High SEER Rating	Meets energy efficiency standards for reduced operating costs
Sound Insulation	Reduced operational noise for quieter performance
Service Valves	Liquid and suction line valves for easy installation and service
Factory Charge	Pre-charged for a specific line length (see specifications)
Diagnostic LED	Integrated fault code indicator on control board
Low Ambient Control	Optional kit available for extended operation in cooler weather
R-410A Refrigerant	Environmentally responsible, non-ozone depleting refrigerant
WeatherGuard™ Fasteners	Durable top grille fasteners designed for all-weather conditions

Installation Guidelines

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

Site Preparation: Place on a level, stable pad (concrete or composite). Ensure adequate clearance for airflow and service (min 24" on sides, 48" front, 12" top).
Electrical Connection: Disconnect all power. Connect field-supplied power wiring to the unit's disconnect and terminal block per local codes and unit nameplate.
Refrigerant Lines: Connect insulated copper line sets to liquid and suction service valves. Brazing must be done with nitrogen purge to prevent contamination.
Condensate Drain: Ensure proper drainage from indoor coil unit to prevent water damage.
Final Check: Verify all connections are tight, panels are secured, and area is clear of debris.

WARNING! Installation and servicing of air conditioning equipment can be hazardous. Only qualified, trained personnel should perform these tasks. Follow all safety codes and wear appropriate PPE. Handle refrigerant responsibly.

First-Time Startup

After installation, perform these steps before placing unit into normal operation.

Pre-Start Check: Ensure electrical connections are correct and tight. Verify refrigerant line set is within specified length for factory charge.
Thermostat Setup: Set system mode to COOL and fan to AUTO. Set temperature below room temperature to initiate a cooling call.
Power On: Restore power at the disconnect and indoor air handler/furnace.
System Check: Listen for proper compressor and fan operation. Check for adequate airflow from indoor vents.
Measurements: A qualified technician should measure superheat/subcooling, system pressures, voltage, and amperage to confirm proper operation.

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

Specifications

Model Number: 5A7A7036A1000A
Cooling Capacity: 3 Tons (Approx. 36,000 BTU/H)
Refrigerant Type: R-410A
Factory Charge: Sufficient for 15 ft line set (Additional charge may be required)
Electrical Data: 208-230V, 1 Phase, 60 Hz (Refer to unit nameplate for min/max voltage and FLA)
SEER Rating: Up to 16 SEER (Depending on matched indoor components)
Operating Ambient: 55°F to 115°F (13°C to 46°C)
Sound Level: As low as 72 dB(A) (Outdoor unit)
Liquid Line Connection: 3/8" SAE Flare
Suction Line Connection: 3/4" SAE Flare
Net Weight: Approx. 210 lbs (95 kg)

Controls and Settings

Primary control is via the indoor thermostat. The outdoor unit has an integrated control board with diagnostic LED.

Thermostat Settings: MODE (COOL, OFF, HEAT* with matched system), FAN (AUTO, ON), Temperature Setpoint.

Outdoor Unit Diagnostics: The control board LED will flash a code sequence in the event of a fault. Refer to the service label on the unit panel or technical guide for code interpretation (e.g., 1 flash = Low Pressure Lockout, 2 flashes = High Pressure Lockout).

Safety Controls: Unit includes automatic high-pressure and low-pressure switches, compressor overload protection, and a time-delay for compressor restart (typically 5 minutes).

Connecting to Thermostat & Ductwork

This unit is designed to be paired with a compatible American Standard indoor air handler or furnace.

Indoor Unit: Install and connect the indoor coil and blower assembly per its manual.
Thermostat Wires: Run low-voltage (24V) control wires (typically 18 AWG) from the indoor unit to the thermostat location (R, C, Y, G, O/B* for heat pump, W* for heat).
Outdoor Connection: Connect the control wires from the indoor unit to the terminal block on the outdoor unit's control panel.
Ductwork: Ensure indoor ductwork is properly sized, sealed, and insulated to maximize efficiency and airflow.

Tip: Use a programmable or smart thermostat for optimal comfort and energy savings. Ensure the thermostat is compatible with single-stage cooling systems.

Operational Modes

As a single-stage air conditioner, the primary mode is cooling.

Cooling Mode: Activated when thermostat mode is set to COOL and room temperature exceeds setpoint. Compressor and outdoor fan cycle on.
Fan Mode: With thermostat FAN set to ON, the indoor blower runs continuously to circulate air without cooling.
Off Mode: System is inactive. Thermostat display remains on if powered.
Automatic Cycle: In COOL mode with FAN set to AUTO, the indoor blower runs only when the compressor is active.

WARNING! Do not switch the thermostat system mode between COOL and HEAT rapidly. Allow the system to complete its cycle and observe the minimum 5-minute off-time delay.

Maintenance Procedures

Regular maintenance is essential for efficiency, longevity, and warranty compliance. Disconnect all power before servicing.

Air Filter: Replace or clean the indoor air filter monthly during peak season. Restricted airflow is a common cause of system failure.
Outdoor Coil: Keep the outdoor coil clean. Gently rinse with a garden hose (from the inside out) to remove dirt, pollen, and debris. Do not use a high-pressure washer.
Clear Area: Maintain a 2-foot clear area around the outdoor unit. Remove leaves, grass clippings, and shrubbery.
Annual Professional Service: A qualified technician should annually inspect refrigerant charge, electrical connections, motor amperage, and system controls.

CAUTION! The outdoor unit contains high-voltage components and a pressurized refrigerant system. Do not attempt to open electrical panels or service refrigerant lines.

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. Proper recovery and reclamation procedures are required by certified technicians. This equipment is designed for residential use. For warranty registration and information, visit www.americanstandardair.com. Manufactured by American Standard Heating & Air Conditioning.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit does not start	Power loss, thermostat setting, time delay	Check disconnect switch and circuit breaker. Verify thermostat is set to COOL below room temp. Wait 5 minutes for reset.
Insufficient cooling	Dirty filter, blocked coils, low refrigerant	Replace air filter. Clean outdoor coil. Contact a technician to check charge.
Unit cycles on/off frequently (short cycling)	Dirty filter, oversized unit, faulty sensor	Replace filter. This may require a professional diagnosis of sizing or controls.
Ice on refrigerant lines or outdoor unit	Low airflow, low refrigerant charge	Turn system OFF. Check/replace air filter. Contact technician to diagnose and repair.
Unusual noise	Loose parts, debris in fan, failing motor	Turn unit OFF. Check for and remove debris. Tighten any accessible panels. If noise persists, call for service.
Diagnostic LED flashing	System fault (pressure, sensor, etc.)	Count the flash sequence and refer to the fault code chart on the unit panel. Call a qualified technician.

Reset: Turning the thermostat OFF or switching power at the disconnect for 30 seconds may reset some lockout conditions.

Service: For warranty service or technical support, contact an authorized American Standard dealer or visit www.americanstandardair.com.