Mr. Cool Advantage 18,000 BTU 19.2 SEER2 Wall Mounted Heat Pump System (230V) - R454B

MRCOOL® A-18-HP-WMAH-230D-O & A-18-HP-C-230D-O Advantage 5th Gen 18,000 BTU 230V – R-454B Ductless Mini-Split Heat Pump System (Air Handler + Condenser)
The MRCOOL® A-18-HP-WMAH-230D-O & A-18-HP-C-230D-O Advantage 18k BTU 230V ductless mini-split delivers efficient, reliable heating and cooling for rooms up to ~800 sq ft. Featuring the eco-friendly R-454B refrigerant with ~80% lower Global Warming Potential (GWP) than R-410A, this system provides sustainable performance and reduced environmental impact. Designed for quiet operation, it ensures year-round comfort while saving energy and lowering utility costs.

The system offers modern convenience with built-in Wi-Fi, enabling smartphone control and compatibility with Amazon Alexa and Google Assistant for hands-free comfort management. Its ductless design allows for a faster, more affordable installation compared to central HVAC systems, while still delivering robust coverage for medium-to-large spaces.

Rated up to 19.2 SEER2 and 9.3 HSPF2-4, the Advantage achieves high energy efficiency, lowering long-term operating costs without compromising comfort. Backed by MRCOOL®’s warranty (1 year parts, 2 years compressor, 1 year remote with registration) and eligible for the MRCOOL® Care Program with Limited Lifetime coverage, homeowners enjoy reliable protection and peace of mind.

General Information
System Type: Ductless mini-split heat pump (indoor air handler + outdoor condenser)
Indoor Model: 5th Gen 18k BTU 230V Advantage Air Handler A-18-HP-WMAH-230D-O
Outdoor Model: 5th Gen 18k BTU 230V Advantage Condenser

A-18-HP-C-230D-O
Capacity: 18,000 BTU Cooling / Heating
Room Size: Up to ~800 sq ft
Operating Modes: Heating & Cooling
Refrigerant: R-454B (low GWP, eco-friendly)
Voltage: 230V

Key Features

• Eco-Friendly Refrigerant : R-454B lowers carbon footprint

• High Efficiency : Up to 19.2 SEER2, 9.3 HSPF2-4

• Quiet Comfort : Engineered for smooth, low-noise performance

• Smart Control : Built-in Wi-Fi, Alexa & Google Assistant integration

• Simplified Installation : Faster and less expensive than central HVAC

• Room Coverage : Ideal for spaces up to ~800 sq ft

• Warranty : 1-year parts, 2-year compressor, 1-year remote (with registration); Limited Lifetime via MRCOOL® Care Program

Specifications (Rated Conditions)
Cooling Capacity: 18,000 BTU
Heating Capacity: 18,000 BTU
SEER2: Up to 19.2
HSPF2-4: 9.3
Voltage: 230V
Coverage Area: Up to ~800 sq ft
Refrigerant: R-454B

Included Components

• Indoor air handler (18k BTU, 230V),

  A-18-HP-WMAH-230D-O

• Outdoor condenser (18k BTU, 230V),

  A-18-HP-C-230D-O

• Wireless remote control
  (Professional installation required)

Ideal For
Homeowners seeking a quiet, energy-efficient, eco-friendly ductless solution for medium-to-large rooms, combining reliable performance, smart technology, and long-term warranty protection.