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LG 12,000 BTU Mega 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R32 | 115V

LG 12000 BTU Mega 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R32 | 115V - KNSAC121B / KUSAC121B
LG 12000 BTU Mega 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R32 | 115V - KNSAC121B / KUSAC121B KUSAC121B KNSAC121B 201813 / CW-144-15 366390 / CW-144-25 366395 / CW-144-35 216740 / CW-144-30 366396 / CW-144-50 87762 / EL1838-3 87762 / EL1838-3 87762 / EL1838-3 HW-600 MSK001 PREMTC200 PREMTB101 PREMTAB31
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By

LG

In stock

Model

KSSAC121B

ID

226352

Was $1,575.00
Your Low Price $1,259.00
 
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 | 115V
12k BTU Mega Single Zone Condenser
12k BTU Mega Single Zone Condenser
12k BTU Mega Single Zone Condenser   + $826.00
12k BTU Mega Wall Mount
12k BTU Mega Wall Mount
12k BTU Mega Wall Mount   + $433.00
15 feet - 1/4" and 3/8" Line Set & Control Wire
Equipment Pad and Risers Kit
Installation Kit for Condensers
LG Simple Remote Controller
LG 12000 BTU Mega 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R32 | 115V - KNSAC121B / KUSAC121B

$1,259.00

LG 12,000 BTU Mega 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System – R32 | 115V

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 high-efficiency performance, it delivers dependable heating and cooling all year long.

Key Features

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

Feature Highlights

Efficiency (20 SEER2)
With a 20 SEER2 rating, this LG Mega Series system helps reduce energy use while maintaining consistent indoor temperatures. The inverter compressor adjusts output smoothly based on the room’s needs, minimizing energy waste and supporting lower operating costs. This makes it an excellent choice for homeowners seeking strong performance with improved efficiency.

Quiet Operation
Engineered for comfort, the indoor unit delivers low-noise airflow that fits seamlessly into bedrooms, home offices, and shared living spaces. Its optimized fan and airflow design help maintain a relaxing environment without disruptive sound. The outdoor condenser also runs quietly, making it suitable for residential areas with close neighbors.

Right-Sized Power
The 12,000 BTU output is ideal for spaces up to 550 sq ft, providing balanced, reliable heating and cooling for medium-sized rooms. It effectively eliminates hot and cold spots while maintaining steady, comfortable temperatures throughout the day. This makes it a great all-around solution for high-use living areas.

What’s Included

  • Outdoor condenser — 12,000 BTU, 20 SEER2
  • Indoor wall-mount air handler — designed for quiet, efficient airflow
  • 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

Ensure 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.

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!

12k BTU Mega Single Zone Condenser

LG 12,000 BTU Mega Single Zone Mini Split Heat Pump Condenser - R32 | 115V

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 550 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 outdoor operation
  • 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.

12k BTU Mega Wall Mount

LG 12,000 BTU Mega Single Zone Wall Mount Mini Split Air Handler – R32 | 115V

This wall‑mount air handler delivers quiet, efficient airflow for medium‑sized bedrooms, home offices, and living spaces up to 550 sq ft. It provides reliable 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 areas
  • Pairs with compatible LG Mega Series condensers
15 feet - 1/4" and 3/8" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 15-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 15-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 15 ft. insulated refrigerant line set
  • 15 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 3/8" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
25 feet - 1/4" and 3/8" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 25-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 25-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 25 ft. insulated refrigerant line set
  • 25 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 3/8" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
LG Simple Remote Controller

Description

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

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 35-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 35-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 35 ft. insulated refrigerant line set
  • 35 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 3/8" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
LG - Wired Remote Controller

LG Standard III Wired Remote Controller PREMTB101

30 feet - 1/4" and 3/8" Line Set & Control Wire

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 30-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 30-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 30 ft. insulated refrigerant line set
  • 30 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 3/8" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
LG Deluxe Wired Remote Controller

OVERVIEW

The LG Deluxe Wired Remote Controller (PREMTAB31) provides intuitive touchscreen control for compatible LG HVAC systems, making it easy to manage comfort and energy use. With built-in Wi-Fi and LG ThinQ® compatibility, users can conveniently adjust operation modes, temperature settings, scheduling, and energy management functions while viewing real-time room temperature, humidity, and date/time information. Designed for seamless system control, it offers an advanced and user-friendly interface for residential and light commercial applications.

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.

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

Complete your mini-split installation with this convenient Line Set & Control Wire Bundle, designed to provide both the refrigerant lines and communication wire needed for reliable system performance. This bundle includes a heavy-duty 50-foot refrigerant line set with 1/4" liquid line and 3/8" suction line featuring durable flared ends for secure connections, along with a matching 50-foot 14/4 stranded copper control wire for dependable communication between indoor and outdoor mini-split components.

The insulated refrigerant lines help improve efficiency and durability, while the flexible control wire is built to withstand demanding HVAC installation environments. Ideal for ductless mini-split air conditioning and heat pump systems, this bundle helps simplify installation by combining two essential components into one convenient package.

What's Included

  • 50 ft. insulated refrigerant line set
  • 50 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 3/8" suction line with flared ends

Features

  • 1/2" thick insulation for improved efficiency
  • Heavy-duty refrigerant line construction
  • Stranded copper wire for reliable conductivity
  • Flexible and durable installation materials
  • Compatible with most mini-split systems
  • Ideal for HVAC installations and replacements
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.

More Information
LG 12,000 BTU Mega Single Zone Mini Split Heat Pump Condenser - R32 | 115V
FeatureSpec
SKUKUSAC121B
Refrigerant Charge1.54 lbs (Pre-charged for 24.6 ft line set)
Weight (in lbs)55.3
AHRI Certificate Number214931172
Brand/ManufacturerLG
UPC195174085899
Cooling BTU11,000 BTU
Heating BTU12,000 BTU
Decibel Level (dBA)50 dBA
Energy StarYes
RefrigerantR32
HSPF29
SEER2 (Efficiency)20
EER212.3
Liquid Line1/4"
Suction Line3/8"
Electrical115V | 1 Phase | 60Hz
Max Breaker Size20 Amps
Min. Breaker Size15 Amps
BTU/Tonnage12,000 BTU/1 Ton
Min/Max Outdoor Temp for Heating5°F - 65°F
Min/Max Outdoor Temp for Cooling14°F - 118°F
Zone CompatibilitySingle Zone
Height19.50"
Width28.22"
Depth9.06"
Warranty10-year warranty. Restrictions apply
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
LG 12,000 BTU Mega Single Zone Wall Mount Mini Split Air Handler – R32 | 115V
FeatureSpec
SKUKNSAC121B
Weight (in lbs)19.2
Brand/ManufacturerLG
UPC195174085509
ControllerWireless Included
Cooling BTU11,000 BTU
Heating BTU12,000 BTU
Maximum CFM459 Turbo / 353 Hi / 264 Med / 148 Lo CFM (Airflow)
Decibel Level (dBA)21 - 42 dBA
RefrigerantR32
Liquid Line1/4"
Suction Line3/8"
Electrical115V | 1 Phase | 60Hz
BTU/Tonnage12,000 BTU/1 Ton
Mini Split TypeWall Mounted
Zone CompatibilitySingle Zone
Height12.13"
Width32.94"
Depth7.44"
Warranty10 Year Compressor / 7 Years Parts Warranty with Online Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Installation Kit for Condensers - Accessory Set
FeatureSpec
SKUMSK001
Weight (in lbs)15
Brand/ManufacturerOnline Supply
UPCna
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
E Lite Equipment Pad and Risers Kit 18" x 38" x 3"
FeatureSpec
SKU87762 / EL1838-3
Weight (in lbs)25
Brand/ManufacturerOnline Supply
UPCna
Height3"
Width18"
Depth38"
Safety InformationPROPOSITION 65 WARNING
17" Wall Mount Bracket for Mini Split Systems
FeatureSpec
SKUHW-600
Weight (in lbs)9.2
Brand/ManufacturerOnline Supply
Length17"
Height20"
Width6"
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends & Control Wire - 15 feet
FeatureSpec
SKU201813 / CW-144-15
Weight (in lbs)15
Brand/ManufacturerOnline Supply
UPCna
Liquid Line1/4"
Suction Line3/8"
Length15'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends & Control Wire - 25 feet
FeatureSpec
SKU366390 / CW-144-25
Weight (in lbs)25
Brand/ManufacturerOnline Supply
UPCna
Length25'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends & Control Wire - 35 feet
FeatureSpec
SKU366395 / CW-144-35
Weight (in lbs)35
Brand/ManufacturerOnline Supply
UPCna
Length35'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends & Control Wire - 30 feet
FeatureSpec
SKU216740 / CW-144-30
Weight (in lbs)30
Brand/ManufacturerOnline Supply
UPCna
Length30'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 3/8" Line Ends & Control Wire - 50 feet
FeatureSpec
SKU366396 / CW-144-50
Weight (in lbs)45
Brand/ManufacturerOnline Supply
UPCna
Length50'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
LG - PREMTC200 - Simple Wired Remote Controller
FeatureSpec
SKUPREMTC200
Weight (in lbs)5
Brand/ManufacturerLG
UPC195174128145
RefrigerantR32
Electrical208/230v 1 Phase 60 Hz
Max Breaker Size15 Amps
Safety InformationPROPOSITION 65 WARNING
LG - PREMTB101 - Wired Remote Controller
FeatureSpec
SKUPREMTB101
Weight (in lbs)1.18
Brand/ManufacturerLG
UPC195174067062
Height2.48
Width10.51
Depth6.22
Safety InformationPROPOSITION 65 WARNING
LG Deluxe Wired Remote Controller
FeatureSpec
SKUPREMTAB31
Weight (in lbs)1.13
Brand/ManufacturerLG
ReplacesSKU: PREMTA201
UPC8806091933034
Electrical12VDC Power From Indoor Unit
Height4.34"
Width4.34"
Depth0.91"
Operating Temperature32°F ~104°F
ResourcesSubmittal
Safety InformationPROPOSITION 65 WARNING
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