0% Financing for 24 Months* Available - Buy Now and Pay later!

LG 12,000 BTU Mega 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R32 | 230V

Required Fields *

By

LG

In stock

Model

KUSAC121A / KNSAC121A

ID

226354

In Stock - Ready to Ship
Was $1,693.43
Your Low Price $1,411.19
 
Free Shipping
Product Features
  • Ideal For Up To 600 Sq Ft
  • High-Efficiency 20 SEER2 Performance
  • 10-year warranty. Restrictions apply.
  • Includes Remote Control
  • Consistent Temperature Performance
  • Ideal For Home Additions
Customize LG 12,000 BTU Mega 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R32 | 230V
LG 12,000 BTU Mega Single Zone Condenser - R32
LG 12,000 BTU Mega Single Zone Condenser - R32   + $910.23
LG 12,000 BTU Single Zone Air Handler – R32
LG 12,000 BTU Single Zone Air Handler – R32   + $500.96
15 feet - 1/4" and 3/8" Line Set
Equipment Pad
Installation Kit for Condensers
Cielo Breez Max Mini Split Thermostat with WiFi
RoughinBox Rough-In Box with Cover Plate for Wall-Mounted Mini Split Systems
LG 12000 BTU Mega 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R32 | 208‑230V - KNSAC121A / KUSAC121A

$1,411.19

LG 12,000 BTU Mega 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R32 | 208‑230V

Designed for efficient, everyday comfort, this 12,000 BTU single zone mini split system is ideal for medium-sized bedrooms, home offices, living areas, and additions up to 600 sq ft. With quiet operation and reliable year‑round performance, it delivers dependable heating and cooling for a wide range of home comfort needs.

Key Features

  • Covers up to 550 sq ft
  • 20 SEER2 high-efficiency performance
  • Quiet, comfortable airflow ideal for bedrooms and shared living spaces
  • Flexible, compact design suitable for a variety of home layouts

Feature Highlights

Efficiency (20 SEER2) - Featuring a 20 SEER2 efficiency rating, this system helps reduce energy usage while maintaining consistent indoor temperatures. The inverter-driven compressor adjusts automatically to match the room’s demand, reducing unnecessary energy consumption. This makes it an excellent choice for homeowners looking to improve comfort while managing energy costs.

Quiet Operation - The indoor unit is engineered to run quietly, making it ideal for bedrooms, offices, and living spaces where minimal noise is important. Its refined airflow design helps reduce sound output while maintaining comfortable, even airflow. The outdoor condenser also operates at reduced noise levels, supporting a peaceful environment inside and outside the home.

Right-Sized Power - The 12,000 BTU capacity provides balanced heating and cooling for rooms up to 550 sq ft, preventing the discomfort of hot and cold spots. Its output is well-suited for medium-sized spaces, ensuring stable temperature control throughout the day. This makes it a practical choice for frequently used areas that require reliable climate management.

What’s Included

  • Outdoor condenser — 12,000 BTU, 20 SEER2
  • Indoor wall-mount air handler — designed for efficient, quiet performance
  • Wireless remote control
  • Installation manual

Recommended Accessories

  • Refrigerant line set
  • Wall bracket or condenser pad
  • Drain hose and insulation kit

Warranty

  • LG products include a 10-year warranty with the requirement that installation is completed by a licensed contractor and that the product is registered at https://lg-dfs-warranty.com/ within 60 days of installation.
Installation Kit for Condensers

4Ensure a professional and secure installation for your condenser with this comprehensive installation kit. Designed to provide all the essential components needed for a smooth setup, this kit helps protect your system while ensuring proper electrical and refrigerant connections.

Key Features:

All-in-One Kit: Includes key accessories for a professional-grade installation.
Enhanced System Protection: Features a surge protector and disconnect safety switch for added safety.
Reliable Electrical Connections: Comes with a whip and charging adapter to ensure proper power supply.
Secure Wall Penetration: Telescoping wall sleeve protects and stabilizes refrigerant and electrical lines.
HVAC Professional Recommended: Ideal for new installations and system replacements.

What’s Included:

  • 3/4" x 6' Electrical Whip – SKU: 84138
  • 60A Non-Fused Disconnect – SKU: 83335
  • Surge Protector – SKU: ICM517
  • CPS Charging Adapter – SKU: 87-AD87
  • Telescoping Wall Sleeve – SKU: NFP-75

Equip your condenser with everything needed for a safe, durable, and professional installation. Order your Condenser Installation Kit today!

15 feet - 1/4" and 3/8" Line Set

Refrigerant line set (pair) for mini split systems, liquid line size 1/4 inch O.D. flared ends, suction line size 3/8 inch O.D. flared ends, length 15 feet, insulation thickness of 1/2 inch. For use with air conditioning and refrigeration systems, includes both the liquid line and the suction line.

Features:

  • One pair, heavy duty refrigerant lines
  • Flared line ends
Equipment Pad

E Liteis a plastic pad designed as a mounting base for air conditioning condensers. The rugged design provides uniform and generous ribbing for optimum, self-leveling ground support without inserts. E Lite is injection molded from polypropylene, resulting in a pad that is lightweight, but not too light. A subtle texture prevents unit slide and presents a classic appearance, which is enhanced by rounded edges and a concrete gray color. Each pad is molded with its size in raised letters.

  • High recycled plastic content
  • Subtle texture resists unit slide
  • Unaffected by UV or weather
  • Uniform ribbing transfers load evenly
  • Drillable for securing unit
  • Lightweight, yet rugged

No Return Policy

All sales of this product are final and are non-refundable.

LG 12,000 BTU Mega Single Zone Condenser - R32

LG 12,000 BTU Mega Single Zone Mini Split Heat Pump Condenser - R32 | 230V

This outdoor mini split condenser delivers efficient, reliable heating and cooling performance for single-zone applications. When paired with a compatible indoor air handler, it supports comfort for spaces up to 600 sq ft.

Key Features

  • High-efficiency inverter-driven heating and cooling
  • 12,000 BTU capacity designed for single-zone systems
  • Durable, compact outdoor design for flexible placement
  • Engineered for quiet, dependable outdoor performance
  • Pairs with compatible LG Mega Series indoor air handlers

Warranty

LG products include a 10-year warranty with the requirement that installation is completed by a licensed contractor and that the product is registered at https://lg-dfs-warranty.com/ within 60 days of installation.

LG 12,000 BTU Single Zone Air Handler – R32

LG 12,000 BTU Mega Single Zone Wall Mount Mini Split Air Handler – R32 | 230V

This wall‑mount air handler provides quiet, efficient airflow for medium‑sized bedrooms, home offices, and living areas up to 550 sq ft. It delivers dependable comfort when paired with a compatible LG outdoor condenser.

Key Features

  • Designed for high‑efficiency performance in paired systems
  • 12,000 BTU capacity for single‑zone applications
  • Slim wall‑mount design suitable for mid‑sized rooms
  • Quiet operation ideal for living and sleeping spaces
  • Pairs with compatible LG Mega Series condensers
Cielo Breez Max Mini Split Thermostat with WiFi

Introducing Cielo Breez Max, the ultimate smart thermostat for your mini-splits, designed to elevate your comfort with intelligent climate control. Transform your air conditioner into a smart powerhouse and manage your cooling or heating from anywhere using your phone. This award-winning device, available in black and white, prevents overheating or overcooling with AI-powered Comfy Max, while seamlessly detecting any mini-split brand for hassle-free setup.


Features:

  • Energy Savings
  • WiFi Connectivity
  • Weekly Schedule
  • Geofencing
  • Temperature Range Lock
  • Real-Time Notifications
  • HVAC Zoning

Weekly Schedule lets you set on and off periods throughout the week based on your needs.

Geofencing uses your smartphone's location to trigger actions in your system, such as turning the air conditioner on or off based on your proximity to home.

Temperature Range Lock ensures your air conditioner operates within a set temperature range for optimal comfort and efficiency.

Real-Time Notifications keep you informed with important updates, helping you manage your air conditioner better.

HVAC Zoning allows you to create customized temperature control zones by grouping multiple mini-split units.

The Cielo Breez Max offers innovative features and extraordinary performance, making it a perfect fit for any room air conditioner. Enjoy maximum energy savings and simplified home comfort with this advanced smart thermostat.

RoughinBox Rough-In Box with Cover Plate for Wall-Mounted Mini Split Systems

Do It Right Before The Wall Closes
Set up your mini split connections the clean way from the start—then finish it off with a clean, polished look.

This RoughinBox kit includes both the rough-in box and matching cover plate, giving you a complete solution for organizing and finishing your mini split installation. Instead of leaving lines, wiring, and drain connections exposed or loosely routed inside the wall, this system creates a dedicated space to keep everything protected and in place from the beginning.

During rough-in, the box helps organize and protect the lineset, wiring, and drain connections before drywall goes up. It supports both vertical and horizontal condensate drain configurations and fits standard 16-inch stud bays, making it ideal for new construction and open-wall remodel projects.

Once the installation is complete, the included cover plate hides the wall access opening behind the indoor unit, giving your install a cleaner, more finished appearance. It’s a simple way to avoid exposed cutouts and create a more professional look without extra effort.

With a durable, waterproof molded design, reversible installation options, and support for condensate pumps when needed, this kit helps you plan ahead, protect your install, and finish the job the right way.


Simplify Rough-In Installation and Protect Critical Components

Prepping a mini split installation is faster, cleaner, and more organized with a multi-position rough-in box. Designed to protect line sets, wiring, and drain connections during construction, it helps prevent damage from other trades and ensures everything is properly positioned before final installation.

With multi-drain flexibility and stud-mounted installation, this rough-in box adapts easily to different layouts while keeping your install consistent and professional. The result is a smoother final install, reduced callbacks, and a cleaner finish once the indoor unit is mounted. It also helps streamline installation for technicians by keeping all connections centralized and easy to access.

For applications requiring rear wall access, an optional rear cover plate is available and can be easily installed or removed with screws. This allows for convenient access to connections when needed while maintaining a clean, finished appearance once installation is complete.

35 feet - 1/4" and 3/8" Line Set

This insulated refrigerant line set for mini split systems comes as a pair, including both the liquid line and suction line. It is used to connect the indoor air handler to the outdoor condenser. The line set is 35’ feet long. The liquid line has 1/4 inch outside diameter flared ends. The suction line has 3/8 inch outside diameter flared ends.

Features:

  • Insulated
  • Flared Line Ends
  • Heavy Duty Refrigerant Lines
Wall Bracket

This wall mount bracket is perfect for outdoor mini split condensers. The length of the the wall bracket arms are 21" long. The condensing unit is mounted onto the L-shaped brackets and fastened using the bolts and anti-vibration washers provided.

Features:

  • 21" Arm Length
  • Weight capacity of 220 lbs per arm
  • Bolts and anti-vibration washers included

No Return Policy

All sales of this product are final and are non-refundable.

RoughinBox Multi-Drain Rough-In Box for Wall-Mounted Mini Split Systems

Do It Right Before The Wall Closes
Set up your mini split connections the clean way from the start—so you’re not fixing it later.

The RoughinBox Multi-Drain Rough-In Box is designed to simplify wall-mounted mini split installations in new construction and open-wall remodel applications. It helps protect the lineset, wiring, and drain outlet during rough-in and sheetrock stages, making final installation cleaner and easier.

This rough-in box is built for wood or metal studs at 16-inch centers and fits standard wall cavities with a compact profile. Its updated design includes an extra bottom lineset port and supports both vertical and horizontal condensate discharge, making it a strong fit for standard high-wall installations as well as tighter spaces such as applications above doors or windows.

Additional features include a one-piece waterproof molded construction, reversible left- or right-hand installation, direct evaporator drain hose connection with supplied adaptor, and a hinged faceplate for easier access and protection during rough-in. It can also accommodate a concealed reservoir and/or condensate pump when needed.


Simplify Rough-In Installation and Protect Critical Components

Prepping a mini split installation is faster, cleaner, and more organized with a multi-position rough-in box. Designed to protect line sets, wiring, and drain connections during construction, it helps prevent damage from other trades and ensures everything is properly positioned before final installation.

With multi-drain flexibility and stud-mounted installation, this rough-in box adapts easily to different layouts while keeping your install consistent and professional. The result is a smoother final install, reduced callbacks, and a cleaner finish once the indoor unit is mounted. It also helps streamline installation for technicians by keeping all connections centralized and easy to access.

For applications requiring rear wall access, an optional rear cover plate is available and can be easily installed or removed with screws. This allows for convenient access to connections when needed while maintaining a clean, finished appearance once installation is complete.

50 feet - 1/4" and 3/8" Line Set

Refrigerant line set (pair) for mini split systems, liquid line size 1/4 inch O.D. flared ends, suction line size 3/8 inch O.D. flared ends, length 50 feet, insulation thickness of 1/2 inch. For use with air conditioning and refrigeration systems, includes both the liquid line and the suction line.

Features:

  • One pair, heavy duty refrigerant lines
  • Flared line ends
17" Wall Mount Bracket for Mini Split Systems

This wall mount bracket is perfect for outdoor mini split condensers. The length of the the wall bracket arms are 17” long. The condensing unit is mounted onto the L-shaped brackets and fastened using the bolts and anti-vibration washers provided.

Features:
  • 17” Arm Length
  • Weight capacity of 220 lbs per arm
  • Bolts and anti-vibration washers included

No Return Policy

All sales of this product are final and are non-refundable.

RoughinBox Cover Plate

The RoughinBox Cover Plate is designed to provide a clean, finished look when access through the wall behind the indoor unit into the RoughinBox is needed. It helps conceal the access opening while maintaining a more polished installation appearance.

This accessory is compatible with select RoughinBox models, including RBX1-CD-NC, RBX2-SD-NC, and RBX3-MD-NC. The cover plate features a black finish to coordinate with the RoughinBox system and is designed for mini split installation applications.


Simplify Rough-In Installation and Protect Critical Components

Prepping a mini split installation is faster, cleaner, and more organized with a multi-position rough-in box. Designed to protect line sets, wiring, and drain connections during construction, it helps prevent damage from other trades and ensures everything is properly positioned before final installation.

With multi-drain flexibility and stud-mounted installation, this rough-in box adapts easily to different layouts while keeping your install consistent and professional. The result is a smoother final install, reduced callbacks, and a cleaner finish once the indoor unit is mounted. It also helps streamline installation for technicians by keeping all connections centralized and easy to access.

For applications requiring rear wall access, an optional rear cover plate is available and can be easily installed or removed with screws. This allows for convenient access to connections when needed while maintaining a clean, finished appearance once installation is complete.

25 feet - 1/4" and 3/8" Line Set

Refrigerant line set (pair) for mini split systems, liquid line size 1/4 inch O.D. flared ends, suction line size 3/8 inch O.D. flared ends, length 25 feet, insulation thickness of 1/2 inch. For use with air conditioning and refrigeration systems, includes both the liquid line and the suction line.

Features:

  • One pair, heavy duty refrigerant lines
  • Flared line ends
Condenser Risers - 4" x 18" - 2 Pack

Provides simple and secure mounting for small and large piping systems, ductwork runs, cable trays and smaller equipment such as condensers. Linear track offers adjustable mounting. Manufactured from exterior grade materials.

Features

  • Ideal for piping, duct runs, cable trays and condensers
  • Weather resistant PVC
  • Linear track holds 3/8" hex head bolts
  • Two 7/8" long bolts included
  • Weighs up to 397 Ib
30 feet - 1/4" and 3/8" Line Set

Refrigerant line set (pair) for mini split systems, liquid line size 1/4 inch O.D. flared ends, suction line size 3/8 inch O.D. flared ends, length 30 feet, insulation thickness of 1/2 inch. For use with air conditioning and refrigeration systems, includes both the liquid line and the suction line.

Features:

  • One pair, heavy duty refrigerant lines
  • Flared line ends
Equipment Pad and Risers Kit

E Lite Condenser Pad and Risers

E Lite Condenser Pad

E Lite Condenser Pad is designed to provide solid support for air conditioning condensers. It's made from sturdy polypropylene, striking a balance between lightness and stability. Its robust design ensures a level ground without the need for extra components.

Key Features:

  • Reliable Support: Abundance of ridges for stable ground support.
  • Durable and Lightweight: Tough yet not excessively heavy, thanks to polypropylene construction.
  • Anti-Slip: The surface prevents slipping, and rounded edges enhance safety.
  • Simple Appearance: Gray color with size labels.
  • Versatile Use: Suitable for condensers, pipes, ducts, cables, and more.

E Lite Risers

E Lite Risers complement the Condenser Pad, allowing you to adjust your setup as needed. They are constructed from weather-resistant PVC for outdoor use.

Key Features:

  • Weather Resistance: Made from tough PVC for long-lasting performance.
  • Secure Setup: The track securely holds bolts in place.
  • Bolts Included: Each set comes with two bolts.
  • Strong Support: Capable of handling loads of up to 397 pounds.

E Lite Condenser Pad and Risers offer reliable support without any complications. They are built to last and deliver efficient performance. Consider E Lite for your support needs – it's a practical solution for your projects.

No Return Policy

All sales of this product are final and are non-refundable.

More Information
LG 12,000 BTU Mega Single Zone Wall Mount Mini Split Air Handler – R32 | 230V
FeatureSpec
SKUKNSAC121A
Maximum CFM459
AHRI Certificate Number214931160
Depth7.44"
HSPF29
SEER2 (Efficiency)20
Width32.94"
Height12.13"
Weight (in lbs)19.200000
Decibel Level (dBA)42
Warranty10-year warranty. Restrictions apply
Resources You will need Adobe&reg: Acrobat&reg: Reader to view PDF documents.
Electrical230V | 1 Phase | 60Hz
BTU/Tonnage12,000 BTU/1 Ton
Cooling BTU11,000
Energy StarYes
Heating BTU12,000
Liquid Line1/4"
RefrigerantR32
Brand/ManufacturerLG
Suction Line3/8"
Mini Split TypeWall Mounted
Safety InformationPROPOSITION 65 WARNING
Zone CompatibilitySingle Zone
LG 12,000 BTU Mega Single Zone Mini Split Heat Pump Condenser - R32 | 230V
FeatureSpec
SKUKUSAC121A
Maximum CFM459
AHRI Certificate Number214931160
Depth9.06"
HSPF29
SEER2 (Efficiency)20
Width28.22"
Height19.50"
Weight (in lbs)55.300000
Decibel Level (dBA)42
Warranty10-year warranty. Restrictions apply
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Electrical230V | 1 Phase | 60Hz
BTU/Tonnage12,000 BTU/1 Ton
Cooling BTU11,000
Energy StarYes
Heating BTU12,000
Liquid Line1/4"
RefrigerantR32
Brand/ManufacturerLG
Suction Line3/8"
Max Breaker Size20A
Min. Breaker Size15A
Min/Max Outdoor Temp for Cooling14°F - 118°F
Min/Max Outdoor Temp for Heating5°F - 65°F
Safety InformationPROPOSITION 65 WARNING
Zone CompatibilitySingle Zone
17" Wall Mount Bracket for Mini Split Systems
FeatureSpec
SKUHW-600
Width6"
Height20"
Length17"
Weight (in lbs)9.200000
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Brand/ManufacturerOnline Supply
Safety InformationPROPOSITION 65 WARNING
RoughinBox Cover Plate for Mini Split Rough-In Boxes
FeatureSpec
SKURBXCP
Weight (in lbs)0.100000
Brand/ManufacturerMarketair Inc.
RoughinBox Multi-Drain Rough-In Box for Wall-Mounted Mini Split Systems
FeatureSpec
SKURBX3-MD-NC
Depth3.5 Inches
Width14 Inches
Height8 Inches
Weight (in lbs)6.800000
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Brand/ManufacturerMarketair Inc.
RoughinBox Rough-In Box with Cover Plate for Wall-Mounted Mini Split Systems
FeatureSpec
SKURBX3-MD-NC / RBXCP
Depth3.5 Inches
Width14 Inches
Height8 Inches
Weight (in lbs)12.000000
MaterialMetal
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Brand/ManufacturerMarketair Inc.
Cielo Breez Max Mini Split Thermostat with WiFi
FeatureSpec
SKUBM101WA
Depth1"
Width4.25"
Height4.25"
Weight (in lbs)1.000000
Warranty1 Year Full Replacement
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
ElectricalMicro USB with Standard Plug
Brand/ManufacturerCielo
Safety InformationPROPOSITION 65 WARNING
E Lite Equipment Pad and Risers Kit 18" x 38" x 3"
FeatureSpec
SKU87762 / EL1838-3
Depth38"
Width18"
Height3"
Weight (in lbs)25.000000
Brand/ManufacturerOnline Supply
Safety InformationPROPOSITION 65 WARNING
Condenser Risers - 4" x 18" - 2 Pack
FeatureSpec
SKU87762
Weight (in lbs)5.000000
Brand/ManufacturerOnline Supply
Installation Kit for Condensers - Accessory Set
FeatureSpec
SKUMSK001
Weight (in lbs)15.000000
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Brand/ManufacturerOnline Supply
Safety InformationPROPOSITION 65 WARNING
21" Wall Mount Bracket for Mini Split Systems
FeatureSpec
SKU230-B2L
Width6"
Height3"
Length40"
Weight (in lbs)9.200000
Brand/ManufacturerOnline Supply
Safety InformationPROPOSITION 65 WARNING
E Lite Equipment Pad 18" x 38" x 3"
FeatureSpec
SKUEL1838-3
Depth38"
Width18"
Height3"
Weight (in lbs)16.000000
Brand/ManufacturerOnline Supply
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends - 30 feet
FeatureSpec
SKU216740
Width1/2"
Height1/2"
Length30'
Weight (in lbs)30.000000
Brand/ManufacturerOnline Supply
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends - 25 feet
FeatureSpec
SKU366390
Width1/2"
Height1/2"
Length25'
Weight (in lbs)25.000000
Brand/ManufacturerOnline Supply
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends - 50 feet
FeatureSpec
SKU366396
Width1/2"
Height1/2"
Length50'
Weight (in lbs)45.000000
Brand/ManufacturerOnline Supply
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends - 35 feet
FeatureSpec
SKU366395
Width1/2"
Height1/2"
Length35'
Weight (in lbs)35.000000
Brand/ManufacturerOnline Supply
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends - 15 feet
FeatureSpec
SKU201813
Width1/2"
Height1/2"
Length15'
Weight (in lbs)15.000000
Brand/ManufacturerOnline Supply
Safety InformationPROPOSITION 65 WARNING
Write Your Own Review
You're reviewing:LG 12,000 BTU Mega 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R32 | 230V
Your Rating
Customer Questions
No Questions
Did you find what you were looking for?
blockboard tech