LG's devotion to providing efficient ductless solutions can be seen across their entire catalog. The KUSXB361A 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 -4 degrees Fahrenheit. There is also a defrost feature, which removes frost from the condenser coil in frigid conditions.
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 Air Handler Indoor Unit KNSLB361A
- Matching 4-Way Cassette Indoor Unit KNSCB361A
- Matching Mid Static Duct Indoor Unit KNUJB361A
Why Buy LG KUSXB361A Single Zone Mini Split Outdoor Condenser Unit
- Energy Efficiency: The unit’s variable-speed inverter compressor adapts its output to match your heating and cooling needs, avoiding constant start-stop cycles. This results in lower energy use and reduced utility bills over time.
- Quiet Operation: Equipped with a brushless direct current motor and a twin rotary compressor, the system minimizes noise, mechanical vibration, and sound—making it well-suited for quiet spaces like bedrooms, patios, or home offices.
- Corrosion Resistance: LG’s Gold Fin coating protects the condenser coil from environmental damage caused by pollutants, salt, and moisture, enhancing the unit’s durability and extending its service life.
- Reliable All-Season Performance: Designed for year-round comfort, the system operates in cooling mode down to 5°F and in heating mode down to -4°F. A built-in defrost function prevents ice buildup on the coil during cold conditions.
- Enhanced Connectivity: Using a 5-conductor communication cable with LG’s R-32 refrigerant units ensures more reliable communication between indoor and outdoor components, while enabling a new refrigerant leak detection feature for added protection.
- Dependable Warranty: LG backs its mini split systems with a 10-year warranty, provided the unit is installed by a licensed contractor and registered within the required timeframe.
Frequently Asked Questions
Q: What kind of unit is the LG KUSXB361A?
A: The LG KUSXB361A is a 36,000 BTU single-zone outdoor condenser designed for ductless mini-split heat pump systems. It operates with a compatible LG indoor unit to provide heating and cooling.
Q: What are the main features of the KUSXB361A?
A: Key features include:
- Inverter technology with a variable-speed compressor for improved energy efficiency.
- Quiet operation, thanks to a brushless DC motor and twin rotary compressor.
- Gold Fin™ anti-corrosion coating on the heat exchanger for enhanced durability.
- Environmentally friendly R-32 refrigerant.
- Low-temperature operation: down to 5°F for cooling and -4°F for heating.
- Defrost mode to prevent frost build-up on coils.
- Electronic expansion valve for precise refrigerant control.
Q: What is the Gold Fin coating, and how does it help?
A: Gold Fin is an anti-corrosion coating applied to the heat exchanger. It protects the unit from rust and corrosion, extending its lifespan—especially in coastal or humid climates.
Q: What accessories are needed for installation?
A: The following field-supplied components are typically required:
- Refrigerant lineset to connect indoor and outdoor units
- Drain tubing for condensate removal
- Disconnect box and electrical whip kit
- 14 AWG 5-conductor stranded communication wire
- Outdoor condenser pad or wall bracket to elevate the unit off the ground
Q: Why is my unit showing an "88" error?
A: The "88" error indicates a communication fault between the indoor and outdoor units. Common causes include:
- Loose or incorrect wiring at the CN105 connector
- Damaged or incorrect communication cable
- Faulty outdoor fan motor or capacitor
Q: What does the "CH 61" error code mean?
A: "CH 61" appears when the outdoor heat exchanger overheats. Likely causes:
- Poor ventilation due to installation in enclosed areas like balconies
- Obstructions around the outdoor unit blocking airflow
Q: My unit is making unusual sounds. What could be wrong?
A: While some operational noise is normal, unusual sounds could indicate issues with:
- The brushless DC motor
- The twin rotary compressor
- LG provides sound recordings on its support website to help diagnose the issue.
Q: How can I confirm that the communication wiring is correct?
A: For R-32 models like the KUSXB361A:
- Use a 5-conductor stranded communication cable
- Verify tight and accurate wiring connections
- Refer to the LG installation manual and local electrical codes for full compliance
Q: What should I check if the unit’s heating or cooling performance is poor?
A: Check the following:
- Proper refrigerant line length and elevation
- Compatibility with the paired LG indoor unit
- If issues persist, an HVAC technician should inspect for system-specific faults.
Pros
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Strong heating & cooling in a large-capacity outdoor unit — good for big rooms or multiple indoor heads if multi-zone.
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High efficiency (good SEER2/EER2) means better running cost than older systems.
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Durable build: likely includes corrosion resistance (Gold Fin or similar feature) in such LG units.
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Capability to work in moderately low ambient temperatures for heating and cooling, which helps in colder climates.
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Long piping distances allow flexible placement of indoor units relative to the outdoor unit.
Cons
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Noise: ~ 54 dB is not silent; in quiet areas or near sleeping spaces, you'll hear it.
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Heating capacity falls as external temperature drops below rated minimum (so performance drops in very cold weather).
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Installation cost and complexity high: large size, special wiring, proper foundation or mounting, compatible indoor units.
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If your actual unit is over-sized for the space, you might face inefficiencies (short cycling, etc.).
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Upfront cost and maintenance may be greater for such a high-capacity unit.
Conclusion
If your “KUSXB361A” is basically the same class as the KUMXB361A (36,000 BTU), then it’s a good match for large installations where strong heating + cooling are needed year-round. It seems more than adequate for most residential or moderate light commercial uses, especially where winters aren’t very extreme (since lowest heating ambient is ~-4°F).
