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Mitsubishi 18,000 BTU SEZ-AD-Series 17.5 SEER2 Single Zone Ceiling Cassette Mini Split Hyper Heat Pump System – R454B | 230V

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Model

SUZ-AA18NLHZ / SLZ-AF18NL

ID

199214

Was $6,286.87
Your Low Price $5,526.38
 
Customize Mitsubishi 18,000 BTU SEZ-AD-Series 17.5 SEER2 Single Zone Ceiling Cassette Mini Split Hyper Heat Pump System – R454B | 230V
18,000 BTU Mitsubishi Single Zone Condenser - R454B
18,000 BTU Mitsubishi Single Zone Condenser - R454B   + $3,404.78
18,000 BTU Mitsubishi P-Series Ceiling Cassette Mini Split Air Handler - R454B
18,000 BTU Mitsubishi P-Series Ceiling Cassette Mini Split Air Handler - R454B   + $1,805.10
Mitsubishi SLP-18FAU Grille for KF Cassettes
Mitsubishi SLP-18FAU Grille for KF Cassettes   + $316.50
 15 feet - 1/4" and 1/2" Line Set & Control Wire
Equipment Pad and Risers Kit
Installation Kit for Condensers
Mitsubishi 18,000 BTU SEZ-AD-Series 17.5 SEER2 Single Zone Ceiling Cassette Mini Split Hyper Heat Pump System – R454B | 230V

$5,526.38

Get Premium Comfort for up to 35% Less.

Efficient mini split heat pump system designed to deliver quiet year-round comfort for medium spaces with dependable cold-climate ceiling cassette performance.

The Mitsubishi P-Series 18,000 BTU single-zone ceiling cassette Hyper Heat mini split system provides reliable heating and cooling for medium spaces, including bedrooms, offices, living rooms, kitchens, and other living areas. Featuring Hyper-Heating INVERTER® technology and a low-profile cassette indoor unit, it delivers dependable comfort, efficient operation, and reliable cold-weather performance with a discreet ceiling-mounted installation design.

Mitsubishi P-Series Single Zone Ceiling Cassette Hyper Heat Features and Benefits

  • 17.5 SEER2 Efficiency – Delivers efficient heating and cooling performance with strong energy savings.
  • Hyper-Heating INVERTER® Technology – Provides reliable heating performance in colder outdoor temperatures.
  • Ceiling Cassette Design – Fits neatly into the ceiling for a clean and streamlined appearance.
  • Four-Way Airflow – Helps provide balanced air distribution throughout the space.
  • Low-Profile Installation – Preserves wall space while maintaining a discreet interior design.
  • R454B Refrigerant – Uses a lower-GWP refrigerant for a more eco-conscious footprint.

Cold Climate Comfort

Hyper-Heating INVERTER® technology is designed to maintain dependable heating output in colder weather, helping support comfort throughout winter.

Low-Profile Cassette Design

The compact ceiling cassette installs discreetly above the ceiling while providing clean, unobtrusive airflow. Its four-way air distribution helps maintain comfort while preserving the room’s visual appearance.

Right-Sized Performance

With 18,000 BTU of capacity, this system is a practical choice for medium spaces requiring efficient and reliable climate control throughout the year.

What’s Included

  • Mitsubishi Single Zone Hyper Heat Mini Split Heat Pump Condenser — 18,000 BTU cooling / 18,000 BTU heating
  • Mitsubishi 18,000 BTU Ceiling Cassette Indoor Unit — SLZ-AF18NL
  • Owner's Manual, Guides, and Other Documents

Recommended Accessories

  • 21" Wall Mount Bracket for Mini Split Systems – 230-B2L
  • 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 – 201814 / CW-144-15 • 25 ft – 366400 / CW-144-25 • 30 ft – 216741 / CW-144-30 • 35 ft – 366401 / CW-144-35 • 50 ft – 366402 / CW-144-50

Warranty

10-year limited warranty with online registration.

18,000 BTU Mitsubishi Single Zone Condenser - R454B

Create efficient heating and cooling with a compact outdoor condenser designed to simplify climate upgrades and pair seamlessly with a compatible indoor air handler.

Upgrade your comfort with the Mitsubishi SUZ-AA18NLHZ Outdoor Condenser—a hyper-heating inverter-driven outdoor unit designed to deliver efficient heating and cooling for single-zone systems. Built for residential and light commercial applications that demand dependable performance, quiet operation, and easier installation, this condenser pairs effortlessly with a compatible Mitsubishi indoor unit for reliable, year-round comfort.

Key Features

  • Hyper-Heating Performance — Helps maintain strong heating output in cold weather for added comfort through the winter.
  • Inverter-Driven Performance — Helps maintain consistent temperatures while optimizing energy use.
  • Quiet Outdoor Operation — Engineered for low-noise performance to help preserve a comfortable 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.

18,000 BTU Mitsubishi P-Series Ceiling Cassette Mini Split Air Handler - R454B

Enjoy efficient, quiet comfort with the Mitsubishi Electric SLZ-AF18NL ceiling-concealed ducted indoor unit.

Transform the comfort of your space with the Mitsubishi Electric SLZ-AF18NL Ceiling-Concealed Ducted Mini Split Indoor Unit. Designed to deliver reliable heating and cooling for larger rooms, this indoor unit combines a low-profile ceiling-concealed design with quiet performance for living rooms, bedrooms, home offices, and other everyday spaces.

Key Features

  • Efficient Year-Round Comfort — When paired with a compatible Mitsubishi condenser, it helps provide dependable heating and cooling while supporting efficient energy use.
  • Right-Sized Comfort for Larger Spaces — The 18,000 BTU capacity is well suited for bigger bedrooms, living areas, and other residential spaces.
  • Ultra-Quiet Operation — Helps create a comfortable environment with low-noise performance.
  • Advanced Filtration — Helps reduce airborne particles and 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!

Mitsubishi SLP-18FAU Grille for KF Cassettes

The Mitsubishi SLP-18FAU is the standard grille option required to complete a KF cassette installation.

Features:

  • Overlaps a 2' x 2' ceiling tile to hide indoor unit from view.

Compatible Indoor Units:

Ceiling Cassette

  • KF Series: SLZ-KF09NA, SLZ-KF12NA, SLZ-KF15NA, SLZ-KF18NA
15 feet - 1/4" and 1/2" 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 1/2" 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
  • 1/2" 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 1/2" 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 1/2" 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

  • 25 ft. insulated refrigerant line set
  • 25 ft. 14/4 mini-split control wire
  • 1/4" liquid line with flared ends
  • 1/2" 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 1/2" 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 1/2" 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
  • 1/2" 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 1/2" 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 1/2" 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
  • 1/2" 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 1/2" 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 1/2" 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
  • 1/2" 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 18,000 BTU SEZ-AD-Series Single Zone Mini Split Hyper Heat Pump Condenser R454B | 230V
FeatureSpec
SKUSUZ-AA18NLHZ
Refrigerant Charge3 lbs (Pre-charged for 25ft line set)
Weight (in lbs)115
Brand/ManufacturerMitsubishi
ReplacesSUZ-KA18NAHZ.TH
UPC605468095201
Cooling BTU18,000 BTU
Heating BTU20,000 BTU
Decibel Level (dBA)55 dBA
Electric HeatHeat Pump
Energy StarYes
RefrigerantR454B
HSPF29.9
SEER2 (Efficiency)17.2
EER212.4
Liquid Line1/4"
Suction Line1/2"
Electrical230V | 1 Phase | 60Hz
Max Breaker Size42 Amps
Min. Breaker Size25 Amps
BTU/Tonnage18,000 BTU/1.5 Ton
Min/Max Outdoor Temp for Heating −13 °F - 75 °F
Min/Max Outdoor Temp for Cooling14 °F - 115 °F
Zone CompatibilitySingle Zone
Height34.63"
Width33.06"
Depth13"
Warranty10 Years with Online Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
Mitsubishi 18,000 BTU SEZ-AD-Series Single or Multi Zone Ceiling Cassette Mini Split Air Handler R454B | 230V
FeatureSpec
SKUSLZ-AF18NL
Weight (in lbs)65
Brand/ManufacturerMitsubishi
ReplacesSEZ-KD18NA4R1.TH & SLZ-KF18NA1
UPC605468325940
Cooling BTU18,000 BTU
Heating BTU18,000 BTU
Maximum CFM475 Turbo / 475 Hi / 420 Med / 300 Lo
Decibel Level (dBA)38 dBA
RefrigerantR454B
Liquid Line1/4"
Suction Line1/2"
Electrical208/230V | 1 Phase | 60Hz
BTU/Tonnage18,000 BTU/1.5 Ton
Mini Split TypeConcealed Duct
Zone CompatibilityMulti Zone
Height8.25"
Width22.44"
Depth22.44"
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
Mitsubishi SLP-18FAU Grille for KF Cassettes
FeatureSpec
SKUSLP-18FAU
Weight (in lbs)5
Brand/ManufacturerMitsubishi
UPC613365387176
Electrical12v, supplied from indoor unit
Length24-19/32"
Height25/32"
Width24-19/32"
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 1/2" Line Ends & Control Wire - 50 feet
FeatureSpec
SKU366402 / 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 1/2" Line Ends & Control Wire - 35 feet
FeatureSpec
SKU366401 / CW-144-35
Weight (in lbs)35
Brand/ManufacturerOnline Supply
UPCna
Length15'
Height1/2"
Width1/2"
Safety InformationPROPOSITION 65 WARNING
Refrigerant Line Set with 1/4" and 1/2" Line Ends & Control Wire - 30 feet
FeatureSpec
SKU216741 / 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 1/2" Line Ends & Control Wire - 25 feet
FeatureSpec
SKU366400 / 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 1/2" Line Ends & Control Wire - 15 feet
FeatureSpec
SKU201814 / CW-144-15
Weight (in lbs)15
Brand/ManufacturerOnline Supply
UPCna
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.

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