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 KUSXA301A 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
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KNUJB301A
Why Buy LG KUSXA301A 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
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Good Capacity for Medium-Large Spaces
The 30,000 BTU cooling / 34,000 BTU heating output is well suited to fairly large rooms or multiple zones with proper ducting or indoor units.
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Excellent Low-Ambient Performance
With operation down to −13°F in heating mode and 5°F in cooling, it works even in cold winters, which makes it useful for all-season climates.
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Gold Fin Protection
The coil is treated to resist corrosion and extend lifespan, especially in humid or salty environments.
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Efficient & Modern Tech
Inverter technology and electronic expansion valve help with energy efficiency and smoother output. The system includes features like base-pan heater to protect against freezing condensate.
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Quiet Relative to Capacity
Although 54 dB is not ultra-quiet, for its capacity it’s reasonably quiet, especially compared to older or less advanced units.
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Accessory Flexibility
Enables relatively long line runs (up to ~164 ft) giving flexibility in where you install the indoor vs outdoor unit. Also includes protections like leak detection support with newer wiring etc.
Cons
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Installation Complexity & Cost
Because of its power and features, you’ll need a proper electrical setup (breaker, wiring), level pad or bracket for mounting, and possibly longer tubing. These raise installation costs.
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Noise Can Be Noticeable
54 dB is fairly loud if placed close to bedrooms or quiet areas. Placement matters to avoid disturbance.
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Indoor Unit & Accessories Needed
This is only the outdoor condenser; you need to purchase compatible indoor heads, line sets, wiring, drain lines, etc. Total system is more expensive than just the condenser.
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Performance Drop in Extreme Conditions
As with most heat pumps, output diminishes as outside temperature drops well below the low-ambient limit.
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Size & Weight
It's heavy (~190 lbs); needs a strong pad or bracket. Handling and transporting require care.
Conclusion
The LG KUSXA301A is a strong choice for someone who needs a reliable, high-capacity outdoor condenser for a single-zone mini-split system. For climates with cold winters, its low-ambient heating capability is a major plus. The corrosion protection (Gold Fin) and modern inverter technology make it durable and relatively efficient over its operational life.
