American Standard HVAC 4A6V0060A1000B Manual

The American Standard 4A6V0060A1000B is a high-efficiency residential air conditioner unit with a 5-ton cooling capacity, featuring a two-stage scroll compressor, R-410A refrigerant, durable WeatherGuard™ top, Spine Fin™ coil technology, and sound reduction features. Designed for compatibility with American Standard communicating thermostats for optimal performance. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Two-stage scroll compressor, Spine Fin™ coil, WeatherGuard™ top, sound insulation, liquid and suction line service valves, high and low-pressure switches.

Installation Requirements

Unpack and inspect unit for shipping damage. Place on a level, stable outdoor pad.

1. Location: Select a well-ventilated area away from windows, shrubs, and exhaust vents.
2. Pad: Use a level, concrete pad or approved composite stand.
3. Refrigerant Lines: Connect pre-charged linesets following brazing and evacuation procedures.
4. Electrical: Connect to a dedicated 208/230V circuit with proper disconnect and fusing as per local codes.
5. Condensate Drain: Ensure proper drainage away from the foundation.

WARNING! Installation must be performed by a qualified HVAC technician. Incorrect installation can cause property damage, personal injury, or death. Disconnect all power before servicing.

First-Time Setup & Commissioning

After mechanical installation, power on and commission the system.

1. System Check: Verify all electrical connections are tight and refrigerant lines are secured.
2. Thermostat Setup: If using a communicating thermostat, follow its setup wizard to register the outdoor unit.
3. Refrigerant Charge: Check and adjust refrigerant charge using subcooling method (for fixed orifice) or superheat method (for TXV) as specified.
4. Test Operation: Run system in cooling mode. Verify correct airflow, temperature drop (typically 15-20°F), and that both compressor stages engage.
5. Final Inspection: Ensure all access panels are secured and area is clean.

CAUTION! Never operate the unit without the service panels in place. Keep the area around the unit clear of debris.

Specifications

• Model Number: 4A6V0060A1000B
• Product Type: Air Conditioner (Outdoor Condensing Unit)
• Cooling Capacity: 60,000 BTU/h (5 Tons)
• SEER Rating: Up to 18 SEER (when matched with appropriate indoor unit)
• Refrigerant Type & Charge: R-410A, Factory charge indicated on unit label
• Electrical Data: 208/230V, 1 Phase, 60 Hz, Minimum Circuit Ampacity: 26.5, Max Fuse/Breaker: 40
• Operating Ambient Temp Range: 55°F to 115°F
• Sound Rating: As low as 72 dB
• Warranty: Limited 10-year parts warranty on compressor and covered components when registered.

Controls and Operation

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

Thermostat Operation: Set to COOL mode and desired temperature. The two-stage compressor will modulate based on cooling demand.

Outdoor Unit LED: Flashing patterns indicate system status (normal operation, fault codes). Refer to service manual for fault code interpretation.

Normal Cycle: Fan and compressor start. Low stage operates for moderate cooling; high stage engages for peak demand.

Connecting to Thermostat & System

This unit is designed to work with a matching American Standard indoor unit (air handler or furnace).

1. Conventional Thermostat: Connect standard 24V control wires (Y1, Y2, C, O/B, etc.) as per wiring diagram on unit panel.
2. Communicating Thermostat (AccuLink™): Uses proprietary data bus (typically 4 wires) for advanced diagnostics and control.
3. Power Wiring: Connect line voltage (L1, L2) and ground to the contactor inside the unit.

Tip: Always turn off power at the disconnect and indoor unit before making any electrical connections.

Maintenance Procedures

Regular maintenance ensures efficiency and longevity. DISCONNECT POWER FIRST.

1. Monthly: Visually inspect for debris around the unit. Clear leaves, grass, etc.
2. Seasonal (Spring):
   • Clean condenser coil: Use a garden hose (from the inside out) to remove dirt. Do not use a pressure washer.
   • Straighten any bent coil fins with a fin comb.
   • Check that the unit is level.
   • Inspect electrical connections for tightness (by a qualified technician).
3. Annual Professional Service: A qualified technician should check refrigerant charge, amperage draws, system pressures, and perform a full inspection.

WARNING! Do not attempt to service refrigerant components. Only EPA-certified technicians may handle refrigerant.

Safety Features

Integrated protection devices: High-pressure switch, low-pressure switch, compressor overload protector, internal time delays, and fuse on control board.

These features automatically shut down the unit to prevent damage from conditions like loss of refrigerant, blocked airflow, or electrical issues.

Care & Cleaning

Keep the exterior clean. Wash the coil gently with water. Ensure the top and sides are free of obstructions.

CAUTION! Do not use chemical cleaners or solvents on the coil or cabinet. Do not bend the delicate fins.

Regulatory Information

This product complies with applicable U.S. safety and performance standards. R-410A refrigerant is an HFC and does not deplete the ozone layer. Proper refrigerant recovery is required by law. The compressor contains oil. For recycling or disposal information, contact your local authorities or American Standard. For support, visit www.americanstandard.com or contact American Standard Customer Care.

Troubleshooting

Reset: Turn thermostat off, turn power disconnect off for 1 minute, then restore power and thermostat.

Service: Contact a qualified American Standard dealer. For warranty: 1-800-926-9662 or www.americanstandard.com.