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Mitsubishi 24,000 BTU GX-Series 21.5 SEER2 Single Zone Wall Mount Mini Split Cooling Only System – R454B | 230V

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Model

MUY-GX24NL / MSY-GX24NL

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199313

Was $4,474.69
Your Low Price $3,937.73
 
Customize Mitsubishi 24,000 BTU GX-Series 21.5 SEER2 Single Zone Wall Mount Mini Split Cooling Only System – R454B | 230V
24,000 BTU Mitsubishi Single Zone Condenser - R454B
24,000 BTU Mitsubishi Single Zone Condenser - R454B   + $2,612.78
24,000 BTU Mitsubishi GX-Series Wall Mount Air Handler - R454B
24,000 BTU Mitsubishi GX-Series Wall Mount Air Handler - R454B   + $1,324.95
 15 feet - 1/4" and 5/8" Line Set & Control Wire
Equipment Pad and Risers Kit
Installation Kit for Condensers
Mitsubishi MHK2 Wireless Remote Controller
27

$3,937.73

Get Premium Comfort for up to 35% Less.

Efficient cooling-only mini split system designed to deliver quiet comfort for medium to large spaces with dependable wall-mounted performance.

The Mitsubishi GX-Series 24,000 BTU single-zone wall-mounted mini split cooling system provides reliable air conditioning for medium to large residential and light commercial spaces. With a sleek wall-mounted indoor unit and inverter-driven technology, it delivers efficient cooling performance, quiet operation, and a space-saving design ideal for bedrooms, offices, living areas, and commercial applications.

Mitsubishi GX-Series Single Zone Cooling Wall Mount Features and Benefits

  • 21.5 SEER2 Efficiency – Delivers strong energy savings with efficient cooling performance.
  • Cooling-Only Operation – Provides dependable air conditioning without heating functionality.
  • Wall-Mounted Design – Saves floor space while providing effective airflow distribution.
  • Quiet Operation – Helps maintain a comfortable indoor environment.
  • Medium to Large Space Coverage – Designed for spaces up to about 1,200 sq. ft., depending on conditions.
  • R454B Refrigerant – Uses a lower-GWP refrigerant for a more eco-conscious footprint.

Quiet Comfort

Both indoor and outdoor components are engineered for quiet operation, making this system a strong fit for living spaces, offices, retail areas, and other environments where sound levels matter.

Compact Wall-Mounted Design

The wall-mounted indoor unit provides efficient cooling while preserving floor space and maintaining a clean, modern appearance.

Right-Sized Performance

With 24,000 BTU of cooling capacity, this system is designed for medium to large spaces that require reliable and efficient air conditioning.

What’s Included

  • Mitsubishi Single Zone Cooling Condenser — MUY-GX24NL, 24,000 BTU cooling
  • Mitsubishi 24,000 BTU Wall-Mounted Indoor Air Handler — MSY-GX24NL
  • Wireless remote control
  • Owner's Manual, Guides, and Other Documents

Recommended Accessories

  • 21" Wall Mount Bracket for Mini Split Systems – 230-B2L
  • Mitsubishi Wireless Remote Controller – MHK2
  • E Lite Equipment Pad and Risers Kit – 87762 / EL1838-3
  • Installation Kit – MSK001
  • • 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
  • Additional line set options
  • • 15 ft – 218863 / CW-144-15 • 25 ft – 366406 / CW-144-25 • 30 ft – 219066 / CW-144-30 • 35 ft – 366407 / CW-144-35 • 50 ft – 366408 / CW-144-50

Warranty

10-year limited warranty with online registration.

24,000 BTU Mitsubishi Single Zone Condenser - R454B

Create efficient, year-round comfort with an easy-to-install outdoor condenser unit designed to simplify home climate upgrades and pair seamlessly with a compatible indoor air handler.

Upgrade your comfort with the Mitsubishi MUY-GX24NL Outdoor Condenser—an inverter-driven outdoor unit designed to deliver efficient cooling performance for medium to large spaces. Built for homeowners who want dependable comfort, quiet operation, and easier installation, this condenser pairs effortlessly with a compatible Mitsubishi indoor unit for reliable, year-round performance.

Key Features

  • Designed for Efficient Comfort — Delivers dependable cooling performance for larger living areas, open layouts, offices, and other medium to large spaces.
  • Inverter-Driven Performance — Helps maintain consistent temperatures while optimizing energy use.
  • Quiet Outdoor Operation — Engineered for low-noise performance to help preserve a comfortable home environment.
  • Built for Durability — Features a corrosion-resistant outdoor coil coating for added protection in challenging environments.

Warranty

Mitsubishi offers a limited warranty of 10-Year Compressor / 10-Year Parts Warranty when installed according to manufacturer guidelines and registered properly.

24,000 BTU Mitsubishi GX-Series Wall Mount Air Handler - R454B

Enjoy efficient, quiet cooling with the Mitsubishi Electric MSY-GX24NL wall-mounted air handler.

Transform the comfort of your space with the Mitsubishi Electric MSY-GX24NL Wall-Mounted Mini Split Air Handler. Designed to deliver reliable cooling for larger rooms, this indoor unit combines a sleek wall-mounted design with quiet performance for living rooms, offices, bedrooms, and other everyday spaces.

Key Features

  • Efficient Cooling Performance — When paired with a compatible Mitsubishi condenser, it helps maximize comfort while supporting efficient energy use.
  • Right-Sized Comfort for Larger Spaces — The 24,000 BTU capacity is well suited for bigger rooms and open residential areas.
  • Ultra-Quiet Operation — Helps create a comfortable environment with low-noise performance.
  • Advanced Filtration — Nano Platinum Filter helps capture airborne particles and reduce odors for cleaner indoor air.

Warranty

10-year limited parts warranty with online registration.

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!

15 feet - 1/4" and 5/8" 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 5/8" 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
  • 5/8" 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
Mitsubishi MHK2 Wireless Remote Controller

The Mitsubishi MHK2 is the second revision of Mitsubishi's most popular wireless controller set, now available for M & P Series residential and light commercial units. This controller offers in-depth 7-day scheduling and an easy to read, backlit display.

The updated MHK2 can now be used in tandem with the Kumo Cloud wi-fi adapter, sold separately. No longer do you have to choose between internet and wireless control: you can use both!

The MRCH2 is the main body of the thermostat. This can be placed anywhere within 200 feet of the indoor unit and does not require line of sight. The ;MRC2 cable will connect to the CN105 connector on the indoor unit's control board. The other end of this cable will connect to the MIFH2 receiver. The MIFH2 should be placed on the right side of a wall mounted unit, in the pocket of a MLZ-KP cassette, or anywhere near the control side of a ducted or square cassette unit.

Features:

  • Includes MRCH2 thermostat, MIFH2 wireless receiver, and MRC2 cable
  • Backlit display
  • Can sense temperature at indoor unit (default) or at controller
  • Fahrenheit °F / Celsius °C
  • No batteries required
  • Single zone compatible
  • Multi zone compatible
  • English, French, Spanish

Compatible Indoor Units:

Wall Mounted

  • GL Series: MSZ-GL06NA-U1, MSZ-GL09NA-U1, MSZ-GL12NA-U1, MSZ-GL15NA-U1, MSZ-GL18NA-U1, MSZ-GL24NA-U1, MSY-GL09NA-U1, MSY-GL12NA-U1, MSY-GL15NA-U1, MSY-GL18NA-U1, MSY-GL24NA-U1
  • FH Series: MSZ-FH06NA, MSZ-FH09NA, MSZ-FH12NA, MSZ-FH15NA, MSZ-FH18NA2
  • EF Series: MSZ-EF09NAB-U1, MSZ-EF09NAS-U1, MSZ-EF09NAW-U1, MSZ-EF12NAB-U1, MSZ-EF12NAS-U1, MSZ-EF12NAW-U1, MSZ-EF15NAB-U1, MSZ-EF15NAS-U1, MSZ-EF15NAW-U1, MSZ-EF18NAB-U1, MSZ-EF18NAS-U1, MSZ-EF18NAW-U1
  • JP Series: MSZ-JP09WA-U1, MSZ-JP12WA-U1
  • WR Series: MSZ-WR09NA-U1, MSZ-WR12NA-U1, MSZ-WR18NA-U1, MSZ-WR24NA-U1
  • D Series: MSZ-D30NA-8, MSZ-D36NA-8, MSY-D30NA-8, MSY-D36NA-8
  • P Series: PKA-A12HA7, PKA-A18HA7,PKA-A24KA7, PKA-A30KA7, PKA-A36KA7

Ducted

  • KD Series: SEZ-KD09NA4R1.TH, SEZ-KD12NA4R1.TH, SEZ-KD15NA4R1.TH, SEZ-KD18NA4R1.TH
  • P Series: PEAD-A09AA7, PEAD-A12AA7, PEAD-A15AA7, PEAD-A18AA7, PEAD-A24AA7, PEAD-A30AA7, PEAD-A36AA7, PEAD-A42AA7

Ceiling Cassette

  • KF Series: SLZ-KF09NA, SLZ-KF12NA, SLZ-KF15NA, SLZ-KF18NA
  • KP Series: MLZ-KP09NA, MLZ-KP12NA, MLZ-KP18NA
  • P Series: PLA-A12EA7, PLA-A18EA7, PLA-A24EA7, PLA-A30EA7, PLA-A36EA7, PLA-A42EA7

Floor Mounted

  • MFZ-KJ09NA-U1, MFZ-KJ12NA-U1, MFZ-KJ15NA-U1, MFZ-KJ18NA-U1

Multi Position Air Handler

  • KP: SVZ-KP12NA, SVZ-KP18NA, SVZ-KP24NA, SVZ-KP30NA, SVZ-KP36NA
  • P Series: PVA-A12AA7, PVA-A18AA7, PVA-A24AA7, PVA-A30AA7, PVA-A36AA7, PVA-A42AA7

Ceiling Suspended

  • P Series: PCA-A24KA7, PCA-A30KA7, PCA-A36KA7, PCA-A42KA7
25 feet - 1/4" and 5/8" 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 5/8" 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
  • 5/8" 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
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.

30 feet - 1/4" and 5/8" 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 5/8" 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
  • 5/8" 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
21" Wall Mount 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.

35 feet - 1/4" and 5/8" 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 5/8" 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
  • 5/8" 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
50 feet - 1/4" and 5/8" 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 5/8" 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
  • 5/8" 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
More Information
Mitsubishi 24,000 BTU GX-Series Single Zone Mini Split Cooling Only Condenser R454B | 230V
FeatureSpec
SKUMUY-GX24NL
Refrigerant Charge3.12 lbs (Pre-charged for 50ft line set)
Weight (in lbs)116
Brand/ManufacturerMitsubishi
ReplacesMUY-GS24NA-U1
UPC605468364642
Cooling BTU22,400 BTU
Decibel Level (dBA)55 dBA
Energy StarYes
RefrigerantR454B
SEER2 (Efficiency)21.5
EER213
Liquid Line1/4"
Suction Line5/8"
Electrical230V | 1 Phase | 60Hz
Max Breaker Size40 Amps
Min. Breaker Size23 Amps
BTU/Tonnage24,000 BTU/2 Ton
Min/Max Outdoor Temp for Cooling14°F to 115°F
Zone CompatibilitySingle Zone
Height34.62"
Width33.06"
Depth13"
Warranty10 Years with Online Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Mitsubishi 24,000 BTU GX-Series Single Zone Wall Mounted Mini Split Air Handler R454B | 230V
FeatureSpec
SKUMSY-GX24NL
Weight (in lbs)37
Brand/ManufacturerMitsubishi
ReplacesMSY-GS24NA-U1
UPC605468302880
ControllerIncluded
Cooling BTU22,400 BTU
Maximum CFM765 Turbo / 636 Hi / 454 Med / 392 Lo / 324 Quiet
Decibel Level (dBA)30-53 dBA
RefrigerantR454B
Liquid Line1/4"
Suction Line5/8"
Electrical230V | 1 Phase | 60Hz
BTU/Tonnage24,000 BTU/2 Ton
Mini Split TypeWall Mounted
Zone CompatibilitySingle Zone
Height12.81"
Width43.31"
Depth10.13"
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
21" Wall Mount Bracket for Mini Split Systems
FeatureSpec
SKU230-B2L
Weight (in lbs)9.2
Brand/ManufacturerOnline Supply
UPC0095247127436
Length40"
Height3"
Width6"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 5/8" Line Ends & Control Wire - 50 feet
FeatureSpec
SKU366408 / CW-144-50
Weight (in lbs)45
Brand/ManufacturerOnline Supply
UPCna
Length50'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 5/8" Line Ends & Control Wire - 35 feet
FeatureSpec
SKU366407 / CW-144-35
Weight (in lbs)35
Brand/ManufacturerOnline Supply
UPCna
Length30'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 5/8" Line Ends & Control Wire - 30 feet
FeatureSpec
SKU219066 / 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 5/8" Line Ends & Control Wire - 25 feet
FeatureSpec
SKU366406 / CW-144-25
Weight (in lbs)25
Brand/ManufacturerOnline Supply
UPCna
Length15'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 5/8" Line Ends & Control Wire - 15 feet
FeatureSpec
SKU218863 / CW-144-15
Weight (in lbs)15
Brand/ManufacturerOnline Supply
UPCna
Length15'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Mitsubishi MHK2 Wireless Remote Controller
FeatureSpec
SKUMHK2
Weight (in lbs)2
Brand/ManufacturerMitsubishi
ReplacesMHK3
UPC85267267533
LengthCable:39-23/64"
HeightThermostat: 4-5/64” | Receiver: 3-3/32”
WidthThermostat: 4-5/64” | Receiver: 1-3/4”
DepthThermostat: 1-1/16" | Receiver: 39/64”
Warranty5 Years Parts Warranty
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Top reviews
  1. Great purchase from trusted source
    Quality
    100%
    Service
    100%
    Price
    100%
    Purchased a mitsubishi ductless mini split to replace my old version of the same model. Loved the price, service and shipping. Thanks guys. Easy to talk to.

    Review by

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Why Choose Mitsubishi Mini Splits?
Why Choose Mitsubishi Mini Splits?

Mitsubishi mini split air conditioners and heat pumps provide exceptional comfort, energy efficiency, and ultra-quiet performance in any climate. Engineered for reliability and precision, these systems offer year-round heating and cooling while reducing energy costs and enhancing indoor air quality.

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