LG KUSXA481A LGRED Single Zone Mini Split Outdoor Condenser Unit with 48000 BTU Cooling Capacity, 52000 BTU Heating Capacity and Gold Fin Protection in White

LG continues to demonstrate global leadership in innovation and technology with their advancements in home comfort solutions. The LGRED° Heat ductless heat pump system boasts superior heating performance in extreme cold weather climates. The KUSXA481A is a single zone mini split outdoor condenser capable of supplying ductless heating and cooling to any room in your home. With inverter technology and quiet operation this well-rounded mini split outdoor condenser is an easy choice for any system.

• Gold Fin Condenser
• Inverter Technology

Enhanced Connectivity

LG's new R-32 mini split units require a 5-conductor cable (Not Included) instead of the standard 4-conductor, improving communication reliability and enabling a new leak detection feature.

Low Ambient Operations

This outdoor unit supports cooling operations down to 5 degrees Fahrenheit and heating operations down to -13 degrees Fahrenheit. There is also a defrost feature, which removes frost from the condenser coil in frigid conditions.

Integrated Base Pan Heater

Base pan heaters come factory installed on all LGRED° outdoor condensers in order to mitigate the risk of damage caused by freezing condensate.

Quiet Design

Thanks to a brushless direct current motor and a twin rotary compressor, the unit is significantly quieter than traditional air conditioning systems. These components reduce mechanical sound, electrical sound, and vibrations within the unit.

*Note: Indoor Unit Required to Operate

Matching Products

• Matching 4-Way Cassette Indoor Unit KNSCB481A
• Matching Mid Static Duct Indoor Unit KNSJB481A

Why Buy LG KUSXA481A LGRED Single Zone Mini Split Outdoor Condenser Unit

• LGRED° Heat Technology: Engineered for superior cold-climate performance, this system delivers strong, reliable heating even in extreme winter conditions.
• Low Ambient Heating: Capable of maintaining warmth in freezing temperatures, the unit operates efficiently in outdoor conditions as low as -13°F.
• Built-In Base Pan Heater: A factory-installed base pan heater prevents condensate from freezing within the unit, protecting against cold-weather damage and ensuring consistent operation.
• Inverter Technology: Featuring a variable-speed compressor and electronic expansion valve, the system precisely controls refrigerant flow to reduce energy use and maintain stable indoor temperatures.
• Quiet Design: With a brushless direct current motor and twin rotary compressor, the unit minimizes operational noise, running as quietly as 52 dB—ideal for residential comfort.
• Gold Fin Protection: The heat exchanger is coated with LG’s anti-corrosive Gold Fin finish, enhancing durability by resisting damage from moisture, salt, and pollutants.
• Improved Communication: The unit utilizes a 5-conductor communication cable (sold separately) for greater system reliability and includes a built-in refrigerant leak detection feature.
• Trusted Certifications: This model is Energy Star listed, CSA-listed, and AHRI certified—assuring that it meets rigorous standards for energy efficiency, safety, and performance.

Frequently Asked Questions

Q: What are the operating temperature ranges?

A: The unit operates in:

• Cooling Mode: Operates between 5°F and 118°F
• Heating Mode: Operates between -13°F and 64°F

Q: What are the key features of the LGRED Single Zone Mini Split Outdoor Condenser Unit?

A: Notable features include:

• High efficiency with inverter technology, a variable-speed compressor, and an electronic expansion valve for precise refrigerant control.
• Quiet operation, using a brushless DC motor and twin rotary compressor to reduce sound and vibration.
• Enhanced durability via a corrosion-resistant Gold Fin™ coating on the heat exchanger.
• Cold climate readiness, including a factory-installed base pan heater to prevent freezing and damage.
• Smart connectivity, requiring a 5-conductor cable for stable communication with the indoor unit and featuring built-in leak detection.

Q: What accessories are required for installation?

A: The following components are typically needed:

• Line set: Double-insulated tubing for refrigerant flow
• Drain tubing: For removing condensate
• Disconnect box and whip kit: For electrical connection to your home’s fuse box
• Connecting wire: To deliver power and signals from the condenser to the indoor unit
• Outdoor condenser pad or wall bracket: To keep the unit off the ground and ensure stable mounting

Q: What are the electrical requirements for this unit?

A: Electrical requirements are:

• Voltage: 208–230V
• Phase: Single-phase
• Frequency: 60Hz
• Wiring for Outdoor Unit (ODU): 3 x 12 AWG cable required

Q: How does inverter technology improve performance?

A: Inverter technology uses a variable-speed compressor to continuously adjust refrigerant flow, maintaining consistent temperatures and eliminating energy-wasting on/off cycles. This provides better comfort and energy efficiency than traditional systems.

Q: What is the purpose of the Gold Fin™ protection?

A: The Gold Fin™ coating on the heat exchanger prevents corrosion, extending the lifespan of the unit—especially beneficial in coastal or high-humidity environments.

Q: How does the base pan heater function in cold climates?

A: The factory-installed base pan heater prevents water from freezing in the drain pan. This helps protect the unit and ensures reliable operation in sub-freezing temperatures.

Pros

1. Strong Capacity
   With 48,000 BTU cooling and 52,000 BTU heating, this unit can comfortably serve large spaces or high-load conditions (big windows, sun exposure, etc.).
2. Cold-Climate Performance
   The ability to heat at −13°F means it’s suited for colder climates; useful if winters are harsh where you are.
3. High Efficiency
   Good SEER2 / EER2 / HSPF2 figures help reduce running cost, especially over time. Inverter tech also helps in saving energy during partial loads.
4. Durability Features
   Gold Fin coating helps resist corrosion; base pan heater helps protect internal components; good build for rugged use.
5. Flexible Installation
   The long maximum line set (piping) allows more flexibility in placing indoor units relative to the outdoor condenser, helpful in complex layouts.

Cons

1. Noise Level
   56 dB is reasonable for a unit of this size, but it can be noticeable especially if placed close to living areas, bedrooms, or outdoor patio areas.
2. High Installation Costs
   Because of its capacity and requirements (breaker size, wiring, possibly stronger outdoor pad, more piping), installation will be more costly.
3. Size & Weight
   Large outdoor unit; heavy to transport and mount. Needs good outdoor pad or mounting support and clearance.
4. Performance Drop in Extreme Cold
   Even though rated for low temps, output reduces as outside temperature drops below those minimums. If you frequently get much colder than −13°F, you may need auxiliary heating.
5. Upfront Cost vs. Needs
   If your space doesn’t require such high capacity, you may pay more than needed. Oversizing can lead to inefficiencies, short cycling, etc.

Conclusion

The LG KUSXA481A is a high-end outdoor condenser well suited for larger spaces or households where both strong cooling and strong heating are needed, especially in varied or colder climates. Its efficiency, durability, and feature-set make it a solid investment if you need the capacity.