The American Standard 4A7L5048N1000A is a high-efficiency, single-stage, 4-ton residential air conditioner condensing unit. Designed for reliable cooling performance, it features a durable Copeland scroll compressor, aluminum spine fin coil, sound-reducing fan, and weather-resistant cabinet. Compatible with American Standard matched indoor units for optimal system performance. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.
Key components: Copeland scroll compressor, Aluminum spine fin coil, Sound-reducing fan with swept-wing blades, Weather-resistant galvanized steel cabinet with powder-coat paint, Liquid and suction line service valves, High and low-pressure switches.
| Feature | Description |
|---|---|
| Compressor Type | Copeland Scroll, single-stage |
| Refrigerant | R-410A |
| Cooling Capacity | 4 Tons (48,000 BTU/H) |
| SEER Rating | Up to 16 SEER (when matched with compatible indoor unit) |
| Coil | Aluminum spine fin for enhanced heat transfer and corrosion resistance |
| Fan Motor | Permanent split capacitor (PSC), weather-protected |
| Cabinet | Galvanized steel with louvered panels for protection and airflow |
| Electrical Requirements | 208/230V, 1-Phase, 60 Hz |
| Sound Rating | Reduced sound levels via optimized fan and compressor isolation |
| Warranty | Limited 10-year parts warranty on compressor and coil* |
Unpack and inspect unit for shipping damage. Select a suitable outdoor location.
WARNING! Installation and servicing of refrigerant circuits must be performed by a qualified, EPA-certified technician. High voltage present. Disconnect all power before servicing.
Power on system only after all connections are verified.
CAUTION! Incorrect refrigerant charge will reduce efficiency, capacity, and compressor life.
Primary control is via the indoor thermostat. Unit has internal safeties and control board.
Thermostat Operation: Set to COOL and desired temperature. Fan setting AUTO runs blower only during cooling cycle; ON runs continuously.
Unit Control Board: Manages compressor start-up, fan operation, and monitors safety switches (high pressure, low pressure, compressor overload). Includes LED diagnostic light (see Troubleshooting).
Normal Cycle: On a call for cooling, thermostat energizes contactor in outdoor unit. Compressor and condenser fan start after a brief time delay. System runs until setpoint is satisfied.
Safety Lockout: If a fault is detected (e.g., high pressure), control board may lock out compressor. LED will flash a code. Power must be cycled to reset after fault is corrected.
This is a split system; it requires a matched indoor coil and air handler or furnace.
Tip: Always use the wiring diagram provided with the specific indoor unit. Incorrect low-voltage wiring can damage controls.
Regular maintenance by a qualified technician is required for efficiency and warranty.
WARNING! Never attempt to clean coil with a pressure washer. Do not open electrical panels unless power is disconnected.
High-Pressure Switch: Opens circuit if discharge pressure exceeds safe limit. Low-Pressure Switch: Opens circuit if suction pressure is too low (indicative of low charge or restriction). Compressor Overload: Internal protector. Time Delay: Prevents short cycling; imposes a 5-minute delay between compressor off and on cycles. Fused Disconnect: Required external safety.
Keep unit free of debris. Before cooling season: Clear perimeter, inspect coil, ensure disconnect is on. After season: Consider covering top.
CAUTION! Do not run unit if coil is blocked or damaged. Store unused unit cover in a dry place.
This product contains fluorinated greenhouse gases. R-410A Global Warming Potential (GWP) = 2088. Do not vent to atmosphere. Recover during service. Complies with U.S. DOE energy conservation standards. Manufactured by American Standard Heating & Air Conditioning, a division of Trane Technologies. For support, contact your local American Standard Dealer or visit www.americanstandardair.com.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Unit does not start | Power off, thermostat setting, blown fuse/breaker, time delay | Check disconnect & breaker. Verify thermostat is in COOL, set below room temp. Wait 5 mins. Check fuses. |
| Unit runs but does not cool | Dirty filter/coil, low refrigerant, faulty compressor | Check/change indoor air filter. Clean outdoor coil. Have technician check charge and compressor operation. |
| Unit cycles on/off rapidly (short cycles) | Dirty coil, overcharge, restricted airflow, faulty pressure switch | Clean coils. Check filter and indoor blower. Technician must check charge and pressures. |
| Loud or unusual noise | Debris in fan, loose parts, failing motor or compressor | Turn power OFF. Remove debris from fan guard. Tighten cabinet panels. If internal, call for service. |
| Ice on refrigerant lines or outdoor coil | Low airflow (dirty filter/coil), low refrigerant charge | Turn system OFF. Let ice melt. Replace filter. Clean indoor/outdoor coils. Call technician to check charge. |
Diagnostic LED: Located on control board. Steady ON = normal. Flash codes: 1 flash = low pressure lockout, 2 flashes = high pressure lockout, 3 flashes = compressor overload/ open winding, etc. Refer to service manual for full code list.
Service: Contact a qualified American Standard Dealer. For warranty or product information: 1-877-467-4289; www.americanstandardair.com