American Standard HVAC 4A6V7X24A1000A Manual

The American Standard 4A6V7X24A1000A is a high-efficiency, single-stage, 2-ton residential air conditioner condenser unit. Designed for quiet operation and reliable performance, it features a durable compressor, weather-resistant cabinet, and compatibility with American Standard matched indoor units for optimal system efficiency. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup & Startup 4. Specifications 5. Controls and Settings 6. Connecting to Indoor Unit & Thermostat 7. Operation 8. Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Durable scroll compressor, Corrosion-resistant coil with Spine Fin™ technology, Sound insulation cabinet, Liquid and suction line service valves, High and low-pressure switches, and a Weather-resistant top.

Feature	Description
Compressor Type	Single-stage, high-efficiency scroll
Refrigerant	R-410A
Cooling Capacity	24,000 BTU/h (2 Tons)
SEER Rating	Up to 16 SEER (with matched indoor unit)
Sound Level	Reduced operational decibels for quiet performance
Cabinet	Galvanized steel, painted with weather-resistant finish
Coil	Aluminum Spine Fin™ for enhanced heat transfer and corrosion resistance
Electrical Requirements	208/230V, 1-phase, 60 Hz
Control Connection	Standard low-voltage terminal block for thermostat wiring
Safety Controls	High and low-pressure switches, internal overload protection

Installation

Unpack and inspect contents. Place on a level, stable pad away from obstructions.

Site Preparation: Install on a level concrete pad or approved support. Ensure minimum clearances (24" on all sides, 48" above).
Electrical Connection: Disconnect all power. Run properly sized copper wire from disconnect box to unit terminal block (L1, L2). Connect ground wire. Follow local codes and NEC.
Refrigerant Lines: Connect pre-charged, insulated refrigerant lineset from indoor unit to outdoor service valves. Brazing must be done with nitrogen purge to prevent oxidation.
Low-Voltage Connection: Connect thermostat control wires (typically R, C, Y, G, O/B) from indoor unit to the low-voltage terminal block in the condenser.
Condensate Drain: Ensure indoor evaporator coil condensate drain line is properly installed and unobstructed.

WARNING! Installation and servicing of refrigerant circuits must be performed by a qualified technician certified per EPA Section 608. Failure to do so can result in equipment damage, personal injury, or death. Electrical work must comply with all local and national codes.

First-Time Setup & Startup

After installation is complete, perform initial startup and system check.

Pre-Start Check: Verify all electrical connections are tight. Ensure refrigerant line service valves are fully open. Check that the indoor filter is clean.
Power On: Restore power at the disconnect and indoor air handler/furnace.
Thermostat Setup: Set thermostat to OFF. Then set to COOL mode and a temperature below room temperature. The outdoor fan and compressor should engage.
System Check: Listen for unusual noises. Verify adequate airflow from indoor vents. Check refrigerant pressures and superheat/subcooling per manufacturer specifications.
Final Inspection: Ensure condensate is draining properly. Verify unit is level and stable.

CAUTION! Do not operate the unit without the service panel securely in place. Allow the unit to run for at least 10 minutes to stabilize before taking pressure readings.

Specifications

Model Number: 4A6V7X24A1000A
Cooling Capacity: 24,000 BTU/h (2 Tons)
Refrigerant Type & Charge: R-410A, Factory Pre-charged (see data plate for exact amount)
Electrical Data: 208/230V, 1 Phase, 60 Hz, Minimum Circuit Ampacity: 15.0, Maximum Overcurrent Protection: 25A
Operating Ambient Temperature: 55°F to 115°F (13°C to 46°C)
Sound Level: Approximately 72 dB(A)
Unit Dimensions (LxWxH): Refer to unit data plate or installation guide.
Net Weight: Approximately 150 lbs (68 kg)
Compatible Indoor Units: American Standard matched air handlers or furnaces (consult compatibility guide).

Controls and Settings

Primary control is via the connected thermostat. Unit has internal safeties and no user-serviceable control boards outside of the low-voltage terminal connections.

Thermostat Settings: Use a compatible programmable or non-programmable thermostat. Standard modes: OFF, COOL, HEAT (if paired with heat pump or furnace), FAN (ON/AUTO).

Unit Components: - Compressor Contactor: Engages compressor on call from thermostat. - Fan Relay: Controls condenser fan motor. - Capacitors: Run capacitor for compressor and fan motor. - Safety Switches: High-pressure switch (opens on excessive pressure), Low-pressure switch (opens on loss of refrigerant).

Note: All operational settings (timing delays, fan control) are managed by the indoor unit control board or thermostat. No field-adjustable DIP switches are present on this model.

Connecting to Indoor Unit & Thermostat

This unit must be connected to a matched American Standard indoor coil and air handler or furnace.

Turn off all power to indoor and outdoor units at the disconnect switches.
Run the 2-conductor high-voltage lines and the multi-conductor low-voltage thermostat cable through the conduit knockout in the condenser base.
Connect high-voltage lines (L1, L2) and ground to the terminal block. Connect low-voltage wires (typically Y, C from the indoor unit) to the corresponding terminals.
At the indoor unit, ensure the control board terminals match the outdoor connections (Y for cooling, C for common).
At the thermostat, connect R (power), C (common), Y (cooling), G (fan), and W or O/B if heat pump or furnace is used.

Tip: Use a wiring diagram specific to your matched indoor unit model. Incorrect wiring can damage control boards.

Operation

Normal operation is controlled entirely by the thermostat.

Cooling Cycle: When thermostat calls for cooling, it sends 24V signal to Y terminal. Outdoor fan and compressor engage. Indoor blower activates.
Cycle Completion: When set temperature is reached, thermostat breaks the Y signal. Compressor and outdoor fan shut off. Indoor blower may continue briefly (if set to AUTO).
Fan Operation: Set thermostat FAN to ON for continuous indoor fan operation, or AUTO to cycle with cooling demand.
Defrost Cycle (if heat pump): Not applicable for this straight-cool model. (If used with a heat pump indoor unit, refer to that manual).

WARNING! Do not switch the thermostat system mode from COOL to HEAT or OFF while the compressor is running. Wait 5 minutes to allow system pressures to equalize.

Maintenance

Homeowner (Monthly/Seasonal):

Keep unit clear of leaves, grass, snow, and debris (maintain 24-inch clearance).
Inspect and clean or replace indoor air filter monthly during cooling season.
Gently rinse condenser coil with a garden hose (from the inside out) at the start of the season if dirty. Turn power OFF first.

Professional Technician (Annual):

Inspect electrical connections for tightness and corrosion.
Check refrigerant charge and system pressures.
Check condenser fan motor and blades for wear/balance.
Inspect compressor amp draw.
Clean evaporator and condenser coils if necessary.
Check condensate drain for clogs.

CAUTION! Always disconnect all power before performing any maintenance. Do not use a pressure washer on the coil fins. Bent fins can be straightened with a fin comb.

Regulatory Information

This product complies with applicable U.S. safety and performance standards. It contains R-410A refrigerant, which must be recovered by EPA-certified technicians. The unit incorporates components protected by patents and trademarks owned by American Standard Heating & Air Conditioning. For support, visit www.americanstandardair.com or contact your local American Standard dealer. Installation must conform with local building codes and with the National Electrical Code (ANSI/NFPA 70).

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit does not start	Power off, blown fuse/circuit breaker, thermostat set incorrectly, safety lockout	Check disconnects and breakers. Verify thermostat is in COOL mode and set below room temp. Wait 5 minutes for compressor timeguard. If problem persists, call for service.
Unit runs but does not cool	Dirty filter, blocked condenser coil, low refrigerant, faulty compressor	Replace indoor filter. Clean outdoor coil. Check for ice on lines. System charge check required – call for service.
Unit cycles on/off frequently (short cycles)	Dirty filter/coil, overcharged/undercharged system, faulty thermostat	Clean filter and coils. Check thermostat location (not in direct sunlight). System charge check required – call for service.
Loud or unusual noise	Loose parts, debris in fan, failing motor or compressor	Turn unit off. Check for and remove debris. Tighten service panel and mounting bolts. If noise continues, call for service.
Ice on refrigerant lines or outdoor unit	Low airflow (dirty filter/coil), low refrigerant charge	Turn system OFF. Replace filter and thaw coil completely. Check for blocked return vents. Call for service to check refrigerant charge.

Reset: If unit locks out on safety, turn thermostat to OFF, turn off power at the disconnect for 30 seconds, then restore power and wait 5 minutes before turning thermostat back to COOL.

Service: For all technical and warranty service, contact your local authorized American Standard dealer. Do not attempt to repair refrigerant circuit or electrical components yourself.