Designed with professionals in mind, the MRCOOL® Advantage 5th Generation 9,000 BTU Ductless Mini-Split delivers powerful, energy-efficient climate control for rooms up to 400 sq. ft. Ideal for bedrooms, offices, or multi-use spaces, this system features a sleek indoor air handler paired with a durable outdoor condenser—both engineered for quiet, high-performance operation.

Installation is required by licensed HVAC technicians and includes a 16-foot line set pre-filled with environmentally friendly R-454B refrigerant. This advanced refrigerant offers a significantly lower Global Warming Potential (GWP), aligning with modern energy and environmental standards.

Control is fully integrated and flexible. Adjust settings using the SmartHVAC app on iOS or Android, the included remote, or through voice control using Amazon Alexa or Google Assistant. The Follow Me® feature detects ambient temperature near the remote to maintain optimal comfort where you are.

The unit’s Gold Fin® condenser coating protects against corrosion from coastal air and harsh weather. With built-in diagnostics, leak detection, Auto Restart, and Low Ambient Cooling down to 5°F, this system is suitable for year-round use—even in server rooms or greenhouses.

The MRCOOL® Advantage is backed by a 2-year compressor warranty and 1-year parts warranty, with additional coverage available through the MRCOOL® Care Program upon registration.

Key Features

• Powerful Coverage – Effectively heats and cools rooms up to 400 sq. ft., perfect for bedrooms, offices, or multi-use spaces.

• Smart Control Integration – WiFi-enabled system supports the MRCOOL® SmartHVAC app, Amazon Alexa, and Google Assistant.

• Eco-Friendly Refrigerant – Pre-charged with R-454B refrigerant, offering approximately 80% lower GWP than previous-generation systems.

• High Efficiency Performance – Delivers up to 21.2 SEER2 and 9.1 HSPF2-4 for dependable, energy-saving comfort all year.

• Quiet Operation – Operates as low as 18.5 dB indoors and 53.5 dB outdoors for minimal disruption.

• Gold Fin® Corrosion Protection – Coated outdoor condenser extends durability, ideal for coastal and high-humidity locations.

• Follow Me® Function – Remote control senses temperature at your location for more accurate climate adjustment.

• Low Ambient Cooling – Maintains performance in temperatures as low as 5°F, ideal for server rooms or greenhouses.

• Built-In Safety Features – Includes refrigerant leak detection and system diagnostics for safer, worry-free operation.

• HVAC Pro Installation Required – Designed for licensed professionals. Not a DIY system.

Specifications

• Brand: MRCOOL®

• Series: Advantage 5th Generation

• Product Type: Single-Zone Ductless Mini-Split Heat Pump

• Air Handler Model: A-09-HP-WMAH-230D-O

• Air Handler Dimensions (WxDxH): 28.43” x 7.36” x 11.42”

• Air Handler Weight (Net/Gross): 16.98 lbs / 22.27 lbs

• Air Handler Noise Level (Turbo/Hi/Mi/Lo/Si): 40.5 / 35.5 / 31.5 / 23.0 / 18.5 dB(A)

• Air Handler Min Circuit Ampacity: 3.0 A

• Air Handler Max Fuse: 15.0 A

• Condenser Model: A-09-HP-C-230D-O

• Condenser Dimensions (WxDxH): 30.12” x 11.93” x 21.85”

• Condenser Weight (Net/Gross): 54.23 lbs / 59.74 lbs

• Condenser Noise Level: 53.5 dB(A)

• Condenser Min Circuit Ampacity: 12.0 A

• Condenser Max Fuse: 15.0 A

• Voltage: 208–230V, 1 Phase, 60 Hz

• Cooling Capacity: 9,000 BTU

• Heating Capacity: 10,000 BTU

• SEER2 Rating: 21.2

• EER2 Rating: 12.6

• HSPF2-4 Rating: 9.1

• HSPF2-5 Rating: 7.0

• Max Coverage Area: Up to 400 sq. ft.

• Refrigerant Type: R-454B (Pre-Charged)

• Refrigerant Charge Volume: 21.52 oz

• Liquid Line Size: 1/4"

• Suction Line Size: 3/8"

• Control Options: Remote, SmartHVAC App, Amazon Alexa, Google Assistant

• Low Ambient Cooling: Down to 5°F

• Certifications: AHRI Certified, NEEP ccASHP, CEE Tier 1 – North, UL Listed, CSA Listed, ETL Listed

• Warranty:
  

  • Parts: 1 Year

  • Compressor: 2 Years

• Extended Warranty: Available with MRCOOL® Care Program registration

• Environmentally Friendly: Yes – R-454B low-GWP refrigerant

• Auto Restart: Yes

• Timer Function: Yes

• Follow Me® Feature: Yes

• Warranty Registration Required: Yes

• DIY Installable: No – Professional Installation Required

BTU Size Chart

Which BTU rating should I choose?

• The appropriate BTU rating depends on the size of the space you need to heat or cool.
• A higher BTU indicates greater heating and cooling capacity, allowing the air handler to effectively condition larger areas.

*Ceiling height, insulation quality, and local climate can all affect the actual coverage area. For instance, an uninsulated space will need more BTUs to maintain comfort compared to a well-insulated room.

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