
MRCOOL Advantage 5th Gen 12,000 BTU Single Zone Mini Split Complete System with 16 Ft. Line Set, 230V, Wall Mounted (A-12-HP-230D-O)
The MRCOOL® 5th Generation 9K BTU Advantage Mini-Split delivers powerful, energy-efficient heating and cooling for spaces up to 400 sq. ft. Ideal for larger rooms, open layouts, or multi-use areas, this system includes a sleek, WiFi-enabled indoor air handler and a high-performance outdoor condenser. With eco-friendly R-454B refrigerant, smart controls, and quiet operation, the Advantage Bundle offers reliable year-round comfort with a professional-grade finish.
Features:
- Powerful Coverage: Effectively heats and cools areas up to 400 sq. ft.—great for bedrooms, home offices, or nurseries
- Smart Home Ready: Built-in Wi-Fi connectivity allows control via the MRCOOL® Smart HVAC Controller® app, Amazon Alexa, or Google Assistant for hands-free operation.
- Efficient & Eco-Friendly: Operates with R-454B refrigerant, which offers ~80% lower Global Warming Potential (GWP) than previous generations, helping reduce environmental impact.
- High Efficiency Ratings: Achieves a SEER2 rating of 21.2 and an HSPF2-4 rating of 9.1 for efficient year-round climate control with lower utility costs.
- Quiet Comfort: Designed for low-noise operation to ensure a peaceful environment, even in large living areas or shared spaces.
- Gold Fin® Protection: Outdoor condenser is coated with corrosion-resistant Gold Fin®—ideal for coastal regions or harsh weather conditions,
- Follow Me® Technology: The included remote features MRCOOL’s Follow Me® function, which senses temperature at your location for more personalized comfort.
- Built-In Safety & Diagnostics: Features advanced functions like refrigerant leakage detection and timer mode for added protection and convenience.
- Low Ambient Cooling: Reliable operation even in temperatures as low as 5°F, making it suitable for year-round use, including server rooms or greenhouses.
- Certified Performance: AHRI certified, NEEP ccASHP listed, and CEE Tier 1 - North qualified to meet high standards of performance and efficiency.
- Complete Installation Kit: Includes a 16 ft. line set for a streamlined setup by professionals.
- Warranty Coverage: Comes with a 1-year warranty on parts and remote, a 2-year compressor warranty, and eligibility for the MRCOOL® Care Program, which includes a Limited Lifetime warranty upon enrollment.
- HVAC Pro Installation Required: This is not a DIY unit—must be installed by a licensed HVAC technician for optimal safety and warranty eligibility.
Air Handler Model | A-12-HP-WMAH-230D-O |
Air Handler Net Dimension (WxDxH) | 31.57 x 7.44 x 11.69 inch |
Air Handler noise level (Turbo/Hi/Mi/Lo/Si) | 44.0/38.0/32.0/22.5/21 |
Air Handler Condenser Minimum Circuit (Disconnect) | 3.0 A |
Air Handler Maximum Fuse (Breaker) | 15.0 A |
Air Handler Net/Gross Weight | 19.40/25.13 Lbs |
Condenser Model | A-12-HP-C-230D-O |
Condenser Net Dimension (WxDxH) | 30.12 x 11.93 x 21.85 inch |
Condenser noise level (Hi) | 54 dB (A) |
Condenser Minimum Circuit (Disconnect) | 13.0 A |
Condenser Maximum Fuse (Breaker) | 15.0 A |
Condenser Net/Gross Weight | 59.08/64.37 Lbs |
Cooling Capacity | 12000 BTU/h |
SEER2 | 21.3 BTU/w |
EER2 | 10.8 BTU/w |
Heating Capacity | 12000 BTU/h |
HSPF2-4 | 9.1 BTU/h |
HSPF2-5 | 7.0 BTU/h |
Max Coverage Area* | Up to 550 |
Power Supply | 208-230V-60Hz. 1Ph |
†Refrigerant R-454B | 24.69 |
Piping Size Liquid side/Gas side | 1/4”-3/8” |
Brochure |
Install Manual |
Performance Data |
Remote Manual |
Service Manual |
Warranty |
Accessory Manual |
30-Day Returns
We want you to be completely satisfied with your purchases. If something isn’t quite right, you can return your items within 30 days of delivery. For more details visit our return and refund policy page.