HOT ! LG KUSAC121B Mega Single Zone Outdoor Condenser Unit with 11000 BTU Cooling Capacity, 12000 BTU Heating Capacity, 115 Volts and Gold Fin Protection in White

LG\'s devotion to providing efficient ductless solutions can be seen across their entire catalog. The KUSAC121B 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.

• Inverter Technology


• Gold Fin Protection

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 Indoor Unit KNSAC121B

Why Buy LG KUSAC121B Mega Single Zone Outdoor Condenser Unit

• Energy Efficiency: Advanced inverter technology precisely controls compressor speed and refrigerant flow, minimizing energy usage while maintaining stable and comfortable indoor temperatures.


• Durability: A protective Gold Fin coating on the heat exchanger resists corrosion, helping to extend the unit’s operational life in various weather conditions.


• Quiet Operation: Equipped with a brushless DC motor and twin rotary compressor, the system operates with reduced mechanical noise and vibrations for a quieter, more peaceful environment.


• Fast Comfort: Jet Cool and Jet Heat modes provide rapid temperature adjustments by increasing fan speed and temporarily modifying the set point for quick relief.


• Intelligent Comfort: Auto operation mode actively monitors room conditions and adjusts fan speed and output to maintain consistent comfort without manual input.


• System Longevity: The corrosion-resistant Gold Fin coating enhances the durability of the unit, promoting long-term performance and reducing maintenance needs.


• Refrigerant: Utilizes R-32 refrigerant, which offers better environmental performance and higher energy efficiency compared to older refrigerants.

• High Efficiency Ratings: Achieves impressive SEER2 and HSPF2 ratings, reflecting the system’s strong performance and energy-saving capabilities in both heating and cooling modes.

Frequently Asked Questions

Q: What is the LG KUSAC121B?

A: The LG KUSAC121B is a 12,000 BTU, 115V, single-zone inverter heat pump that provides both heating and cooling. It uses R-32 refrigerant, includes built-in Wi-Fi, and serves as an outdoor condenser that must be paired with a compatible indoor evaporator unit.

Q: What are the key features of the LG KUSAC121B?

A: Key features include:

• High Efficiency: 20 SEER2 rating thanks to inverter technology and R-32 refrigerant; Energy Star® certified.


• Durability: Gold Fin™ coating on the heat exchanger resists corrosion.


• Quiet Operation: Variable-speed compressor and fan motor minimize noise and vibration.


• Wi-Fi Enabled: Compatible with the LG ThinQ app for remote control and monitoring.


• Convenience: Features include a 24-hour timer, auto-changeover, auto-restart, and sleep mode.

Q: How is the KUSAC121B installed?

A: Installation must be performed by a licensed HVAC technician. The installer connects the outdoor condenser to indoor unit(s) and integrates it into the electrical system. Professional installation is required to ensure proper operation and preserve the manufacturer’s warranty.

Q: What are the electrical requirements for this unit?

A: Electrical requirements:

• Voltage: 115V


• Minimum circuit ampacity: 15 amps


• Recommended circuit breaker: 20 amps

Q: Why doesn’t the outdoor unit start immediately after being turned on?

A: The unit has a compressor protection delay. After being turned off and back on, the compressor waits approximately 3 minutes before restarting. This prevents system damage from short-cycling.

Q: What should I do if the air conditioner isn\'t cooling properly?

A: If the air conditioner isn\'t cooling properly:

• Check the indoor air filter: Clean or replace it if it\'s dirty.


• Inspect the outdoor unit: Make sure it’s free from debris or obstructions.


• Verify thermostat settings: Ensure it’s in the correct mode (Cool) and set to the desired temperature.

Q: What should I do if the unit is not turning on at all?

A: If the Unit doesn\'t turn on at all:

• Check the circuit breaker: Reset it if it has tripped.


• Inspect the power source: Make sure the unit is properly plugged in or connected.


• Reset the unit: Turn off the breaker or unplug the unit for 5 minutes, then restart it.


• Call a technician: If the issue persists, professional service may be needed due to a potential internal fault.