MRCOOL DIY® 5th Gen 12,000 BTU Multi-Zone Mini Split Air Handler – 230V

Model: DIY-12-HP-WMAH-230D25-O

Ideal Coverage: Up to 550 sq. ft. • Power: 230V • Refrigerant: R-454B

The MRCOOL® DIY 5th Generation 12K BTU Multi-Zone Wall Mount Air Handler is the perfect addition for your home comfort solution. Built for reliable heating and cooling all year round, it’s designed to pair with MRCOOL® 5th Gen DIY® Multi-Zone Condensers. This indoor unit is ideal for medium-to-large rooms like master bedrooms, living areas, home offices, and more.

🔥 Key Features

• DIY Installation: Simple, tool-free installation—no vacuum pump or special tools required
• QuickConnect® Line Set: Pre-charged with R-454B refrigerant for easy and fast connection
• Green Refrigerant: R-454B has a lower Global Warming Potential (GWP) than R-410A, making it more environmentally friendly
• DIYPRO® Cable: Rugged, armored cable eliminates the need for traditional electrical conduit
• Smart Controls: Operate with the included remote, SmartHVAC app, or voice commands via Alexa and Google Assistant
• Follow Me Function: Automatically adjusts comfort based on your remote's location
• Dry Mode: Reduces humidity to improve air quality

📏 Room Size Coverage

This unit is recommended for rooms up to 550 sq. ft., such as larger bedrooms, living rooms, or media areas.

🛡️ Industry-Leading Warranty

• Compressor: 7-Year Warranty
• Parts: 5-Year Warranty
• Optional Lifetime Replacement: Enroll in the MRCOOL® Care Program

✅ Certified Performance

ETL Listed: Intertek #5031495 ensures performance, safety, and reliability.

⚠️ Important Compatibility Note

This 5th Gen MRCOOL® air handler uses R-454B refrigerant and is not compatible with previous generation R-410A systems. Use only with matching MRCOOL® 5th Gen R-454B DIY® Multi-Zone Condensers and components.

Trust MRCOOL DIY Direct – America’s most reliable source for genuine MRCOOL® replacement HVAC systems, parts, and accessories.

Specifications & Dimensions