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18,000 BTU Mitsubishi GX-Series 22.5 SEER2 Single Wall Mounted Mini Split Cooling Only System - R454B | MUY-GX18NL / MSY-GX18NL

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Mitsubishi

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Model

MUY-GX18NL / MSY-GX18NL

ID

199078

Expected Arrival - January 2026
Was $3,494.06
Your Low Price $2,795.25
 
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Customize 18,000 BTU Mitsubishi GX-Series 22.5 SEER2 Single Wall Mounted Mini Split Cooling Only System - R454B | MUY-GX18NL / MSY-GX18NL
18,000 BTU Mitsubishi Single Zone Condenser - R454B
18,000 BTU Mitsubishi Single Zone Condenser - R454B   + $1,839.00
18,000 BTU Mitsubishi GX-Series Wall Mount Air Handler - R454B
18,000 BTU Mitsubishi GX-Series Wall Mount Air Handler - R454B   + $956.25
Installation Kit for Condensers
Wall Mount Bracket for Condensers 30"
Cielo Breez Max Mini Split Thermostat with WiFi
Refrigerant Line Set with 1/4" and 1/2" Line Ends - 15 feet
22,200 BTU Mitsubishi M-Series Floor Mount Mini Split – 22.5 SEER2, R454B, Dual Airflow & Quiet Year-Round Comfort for Small Spaces

$2,795.25

18,000 BTU Mitsubishi GX-Series 22.5 SEER2 Single Wall Mounted Mini Split Cooling Only System - R454B | MUY-GX18NL / MSY-GX18NL

The 18,000 BTU Mitsubishi GX-Series Cooling Only Mini Split system is perfect for larger rooms needing efficient, quiet cooling. With 22.5 SEER2 and modern design, this system balances power and efficiency effortlessly.

Key Features:
  • 22.5 SEER2 Efficiency: Provides high-performance cooling while conserving energy.
  • Cooling Only Operation: Delivers dependable cooling only – no heat mode included.
  • Wall-Mounted Design: Space-efficient and stylish indoor unit for modern spaces.
  • Quiet Operation: Low operating noise levels for peaceful indoor comfort.
  • R454B Refrigerant: A sustainable, low-GWP refrigerant option for eco-conscious homes.
System Components:
  • Indoor Unit: MSY-GX18NL Wall-Mounted Air Handler
  • Outdoor Unit: MUY-GX18NL Condenser
Additional Benefits:
  • Perfect for large rooms or open living areas
  • High-efficiency cooling from a top-tier brand
  • Simple remote control operation
  • Reliable, energy-saving performance

Enjoy powerful, quiet cooling with the Mitsubishi GX-Series 18,000 BTU mini split system—ideal for larger home or business spaces.

18,000 BTU Mitsubishi GX-Series Single Zone Mini Split Cooling Only Condenser - R454B - MUY-GX18NL

*Please Note* This product is currently estimated to ship sometime in January 2026

MUY-GX18NL - Inverter Cooling Outdoor Unit

The MUY-GX18NL is a high-efficiency inverter-driven outdoor unit, providing reliable cooling performance for both residential and light commercial applications. It pairs with the MSY-GX18NL indoor unit for a seamless and energy-efficient cooling system. Below are the key features and specifications:

Key Features:

  • Inverter-Driven Compressor: The inverter compressor adjusts the capacity to match the cooling demand, ensuring energy savings while maintaining comfort.
  • Blue Fin Coating: The heat exchanger is coated with a Blue Fin coating, offering corrosion protection, particularly in coastal and industrial environments.
  • Quiet Operation: Designed for quiet operation, the unit produces a sound pressure level of 54 dB(A), making it ideal for environments where low noise is important.
  • Automatic Restart: The system automatically restarts after a power outage, ensuring minimal downtime and continuous operation.
  • Energy Efficiency: The MUY-GX18NL boasts a SEER2 rating of 22.5 and an EER21 rating of 14.05, ensuring high energy efficiency and reduced operating costs.
  • Cooling Capacity: With a rated cooling capacity of 18,000 BTU/h and a maximum cooling capacity of 22,000 BTU/h, this unit is ideal for medium-sized spaces.

Specifications:

  • Electrical Requirements: 208-230V, 1 phase, 60Hz with a maximum power input of 2,150W and a rated power input of 1,280W.
  • Airflow Rate: The unit provides an airflow rate of 2,202 CFM, ensuring efficient air distribution and cooling performance.
  • Refrigerant: Uses environmentally friendly R454B refrigerant, which reduces global warming potential compared to traditional refrigerants.
  • Dimensions: The outdoor unit measures 33-1/16 inches (W) x 13 inches (D) x 34-5/8 inches (H), with a weight of 116 lbs (52.30 kg).
  • Noise Level: The unit operates at a sound pressure level of 54 dB(A) during cooling, ensuring quiet operation in any environment.
  • Maximum Piping Length: The unit supports a maximum piping length of 100 feet with a maximum height difference of 50 feet, allowing flexible installation options.
  • Operating Temperature Range: The unit operates efficiently in cooling conditions from 14°F to 115°F, making it suitable for various climates.

The MUY-GX18NL outdoor unit is designed for durability, efficiency, and quiet operation, making it an excellent choice for cooling applications in residential and light commercial settings. Its advanced features, energy savings, and reliable performance ensure long-term comfort and value.

18,000 BTU Mitsubishi GX-Series Single Zone Wall Mounted Mini Split Air Handler - R454B

MSY-GX18NL Wall-Mounted Air Handler

The MSY-GX18NL is a high-performance, wall-mounted air handler designed to provide efficient cooling with advanced features for enhanced comfort and energy savings.

Key Features:

  • Dual Barrier Coating: Reduces dust and oil buildup on internal components to maintain efficiency and improve air quality.
  • Powerful Mode: Quickly cools a room by maximizing fan speed and compressor operation.
  • Nano Platinum Filter: Helps purify air by capturing airborne particles and reducing odors.
  • Econo Cool Mode: Optimizes airflow to enhance energy efficiency while maintaining comfort.
  • Smart Dry Mode: Provides better humidity control without overcooling.
  • Quiet Operation: Designed for low-noise performance, ensuring minimal disruption in any space.
  • Wi-Fi Compatibility: Enables remote operation via a smartphone app for added convenience.
  • Multiple Fan Speeds: Offers customizable airflow settings for personalized comfort.
  • Compact and Sleek Design: Allows for seamless integration into residential or commercial environments.

The MSY-GX18NL is an ideal cooling solution, providing reliable performance, energy efficiency, and user-friendly controls.

Installation Kit for Condensers - Accessory Set

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.

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:

  • 1/2" x 6' Electrical Whip – SKU: 84136
  • 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!

Wall Mount Bracket for Condensers 30"

This wall mount bracket is perfect for outdoor condensers. The length of the wall bracket arms are 30" long. The condensing unit is mounted onto the L-shaped brackets and fastened using bolts and anti-vibration washers (not included with brackets).

Features:

  • Steel: 10 GA
  • Powder-coated grey Finish
  • Load rating: 600 lbs per pair
  • Holes will accommodate anchors for installation
  • Warranty: 1 year
  • ACB line of wall brackets are approved by the Florida Building Commission and are High Velocity Hurricane Zone (HVHZ) approved. (See product certification documentation for complete details.)

No Return Policy

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

E Lite Equipment Pad 18" x 38" x 3"

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.

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
E Lite Equipment Pad and Risers Kit 18" x 38" x 3"

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.

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.

Refrigerant Line Set with 1/4" and 1/2" Line Ends - 15 feet

Refrigerant line set (pair) for mini split systems, liquid line size 1/4 inch O.D. flared ends, suction line size 1/2 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
Refrigerant Line Set with 1/4" and 1/2" Line Ends - 30 feet

Refrigerant line set (pair) for mini split systems, liquid line size 1/4 inch O.D. flared ends, suction line size 1/2 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
Refrigerant Line Set with 1/4" and 1/2" Line Ends - 50 feet

Refrigerant line set (pair) for mini split systems, liquid line size 1/4 inch O.D. flared ends, suction line size 1/2 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
Refrigerant Line Set with 1/4" and 1/2" Line Ends - 25 feet

Refrigerant line set (pair) for mini split systems, liquid line size 1/4 inch O.D. flared ends, suction line size 1/2 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
Refrigerant Line Set with 1/4" and 1/2" Line Ends - 35 feet

Refrigerant line set (pair) for mini split systems, liquid line size 1/4 inch O.D. flared ends, suction line size 1/2 inch O.D. flared ends, length 35 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
More Information
18,000 BTU Mitsubishi GX-Series Single Zone Mini Split Cooling Only Condenser - R454B - MUY-GX18NL
SKUMUY-GX18NL
Weight (in lbs)116.000000
Brand/ManufacturerMitsubishi
ReplacesMUY-GS18NA-U1
Cooling BTU22000
Decibel Level (dBA)54
RefrigerantR454B
SEER2 (Efficiency)22.5
Compressor TypeTwin Rotary
Liquid Valve Size 1/4
Suction Valve Size 1/2
Electrical208/230V 1 Phase 60 Hz
Max Breaker Size40
Min. Breaker Size23
BTU/Tonnage18,000 BTU/1.5 Ton
Zone CompatibilitySingle Zone
Height34.62"
Width33.06"
Depth13"
Warranty10 Years with Online Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
18,000 BTU Mitsubishi GX-Series Single Zone Wall Mounted Mini Split Air Handler - R454B
SKUMSY-GX18NL
Weight (in lbs)37.000000
Brand/ManufacturerMitsubishi
ReplacesMSY-GS18NA-U1
Decibel Level (dBA)28-49
RefrigerantR454B
Mini Split TypeWall Mounted
Zone CompatibilitySingle Zone
Height 12-13/16"
Width43-5/16"
Depth10-1/8"
Warranty10 Years with Online Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Installation Kit for Condensers - Accessory Set
SKUMSK001
Weight (in lbs)15.000000
Brand/ManufacturerOnline Supply
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Wall Mount Bracket for Condensers 30"
SKUACB-30
Weight (in lbs)9.200000
Brand/ManufacturerOnline Supply
Length30"
Height16"
Width2"
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
E Lite Equipment Pad 18" x 38" x 3"
SKUEL1838-3
Weight (in lbs)16.000000
Brand/ManufacturerOnline Supply
Height3"
Width18"
Depth38"
Safety InformationPROPOSITION 65 WARNING
Condenser Risers - 4" x 18" - 2 Pack
SKU87762
Weight (in lbs)5.000000
Brand/ManufacturerOnline Supply
E Lite Equipment Pad and Risers Kit 18" x 38" x 3"
SKU87762 / EL1838-3
Weight (in lbs)25.000000
Brand/ManufacturerOnline Supply
Height3"
Width18"
Depth38"
Safety InformationPROPOSITION 65 WARNING
Cielo Breez Max Mini Split Thermostat with WiFi
SKUBM101WA
Weight (in lbs)1.000000
Brand/ManufacturerCielo
ElectricalMicro USB with Standard Plug
Height4.25"
Width4.25"
Depth1"
Warranty1 Year Full Replacement
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 1/2" Line Ends - 15 feet
SKU201814
Weight (in lbs)15.000000
Brand/ManufacturerOnline Supply
Length15'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 1/2" Line Ends - 30 feet
SKU216741
Weight (in lbs)30.000000
Brand/ManufacturerOnline Supply
Length30'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 1/2" Line Ends - 50 feet
SKU366402
Weight (in lbs)45.000000
Brand/ManufacturerOnline Supply
Length50'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 1/2" Line Ends - 25 feet
SKU366400
Weight (in lbs)25.000000
Brand/ManufacturerOnline Supply
Length25'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 1/2" Line Ends - 35 feet
SKU366401
Weight (in lbs)35.000000
Brand/ManufacturerOnline Supply
Length15'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
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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.