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Mitsubishi 18,000 BTU 17.2 SEER2 Single Zone Concealed Duct Mini Split Heat Pump System - R454B | 230V

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4.6 out of 5
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Mitsubishi

In stock

Model

SUZ-AA18NL / SEZ-AD18NL

ID

216062

Was $5,312.82
Your Low Price $4,675.28
 
Customize Mitsubishi 18,000 BTU 17.2 SEER2 Single Zone Concealed Duct Mini Split Heat Pump System - R454B | 230V
18,000 BTU Mitsubishi Single Zone Condenser - R454B
18,000 BTU Mitsubishi Single Zone Condenser - R454B   + $2,776.13
18,000 BTU Mitsubishi KD-Series Concealed Duct Mini Split Air Handler - R454B
18,000 BTU Mitsubishi KD-Series Concealed Duct Mini Split Air Handler - R454B   + $1,899.15
 15 feet - 1/4" and 1/2" Line Set & Control Wire
21" Wall Mount Bracket
Installation Kit for Condensers
18,000 BTU Mitsubishi 16.5 SEER2 Single Zone Concealed Duct Mini Split Heat Pump System - R454B | 230V - SUZ-AA18NL / SEZ-AD18NL

$4,675.28

Get Premium Comfort for up to 35% Less.

Efficient mini split heat pump system designed to deliver quiet year-round comfort for medium to large spaces with dependable concealed duct performance.

The Mitsubishi SEZ-AD-Series 18,000 BTU single-zone concealed duct mini split heat pump system provides reliable heating and cooling for medium to large spaces, including living rooms, bedrooms, home offices, additions, and open layouts. Featuring a concealed duct indoor unit and efficient inverter technology, it delivers dependable comfort, quiet operation, and a clean traditional HVAC appearance with a discreet hidden installation design.

Mitsubishi SEZ-AD-Series Single Zone Concealed Duct Features and Benefits

  • 17.6 SEER2 Efficiency – Delivers efficient heating and cooling performance with strong energy savings.
  • Year-Round Comfort – Provides reliable heating and cooling in one complete system.
  • Concealed Duct Design – Keeps the indoor unit hidden for a clean and streamlined appearance.
  • Flexible Installation – Designed for ceiling, closet, or attic installations where a discreet solution is preferred.
  • Quiet Operation – Helps maintain a comfortable environment in bedrooms, offices, and living spaces.
  • R454B Refrigerant – Uses a lower-GWP refrigerant for a more eco-conscious footprint.

Quiet Operation

The indoor and outdoor components are engineered for low-noise performance, making this system an excellent choice for spaces where a quieter comfort solution matters.

Concealed Duct Design

The slim concealed duct indoor unit installs out of sight in ceilings, closets, or attic spaces while distributing conditioned air through ductwork for a clean, traditional HVAC appearance.

Right-Sized Performance

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

What’s Included

  • Mitsubishi Single Zone Mini Split Heat Pump Condenser — 18,000 BTU cooling / 18,000 BTU heating
  • Mitsubishi 18,000 BTU Concealed Duct Indoor Unit — SEZ-AD18NL
  • 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.

More Information
Mitsubishi 18,000 BTU KD-Series Concealed Duct Mini Split Air Handler R454B | 230V
FeatureSpec
SKUSEZ-AD18NL
Weight (in lbs)55
Brand/ManufacturerMitsubishi
ReplacesSEZ-KD18NA4R1.TH
UPC605468332429
Cooling BTU14,100 BTU
Heating BTU18,000 BTU
Maximum CFM529 Turbo / 471 Hi / 353 Med / 317 Lo
Decibel Level (dBA)37 dBA
RefrigerantR454B
Liquid Line1/4"
Suction Line1/2"
Electrical208/230V 1 Phase 60 Hz
BTU/Tonnage15,000 BTU/1.25 Ton
Mini Split TypeConcealed Duct
Zone CompatibilityMulti Zone
Height7.88"
Width46.88"
Depth27.56"
Warranty10 Year Compressor / 7 Years Parts Warranty with Online Registration
Resources
Safety InformationPROPOSITION 65 WARNING
Mitsubishi 18,000 BTU SEZ-AD-Series Single Zone Mini Split Heat Pump Condenser R454B | 230V
FeatureSpec
SKUSUZ-AA18NL
Refrigerant Charge3 lbs (Pre-charged for 25ft line set)
Weight (in lbs)115
Brand/ManufacturerMitsubishi
ReplacesSUZ-KA18NA2.TH
UPC605468317082
Cooling BTU18,000 BTU
Heating BTU20,000 BTU
Decibel Level (dBA)55 dBA
Electric HeatHeat Pump
Energy StarYes
RefrigerantR454B
HSPF210.3
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−4 °F - 75 °F
Min/Max Outdoor Temp for Cooling14 °F - 115 °F
Zone CompatibilitySingle Zone
Ambient Temperature Range14 °F - 115 °F
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
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
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
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
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
Top reviews
  1. Excellent.
    Quality
    100%
    Service
    100%
    Price
    80%
    The purchase was flawless. Everything was as described. The freight company (Dayton Freight) was outstanding. So far the unit is working great.

    Review by

    Posted on

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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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