MRCOOL DIY Select 1st Gen - R454B - 24K BTU 230V Black Wall Mount Air handler + Condenser

MRCOOL DIY Select 1st Gen - R454B - 24K BTU 230V Black Wall Mount Air handler + Condenser.

What this system is

• DIYS-24-HP-C-230A11-O — DIY Select 1st Gen - R454B - 24K BTU 230V Condenser w/ 11ft Install Kit
• DIYS-24-HP-B-WMAH-230A13-O — DIY Select 1st Gen - R454B - 24K BTU 230V Black Wall Mounted Air Handler - with 13' Communication Cable

Outdoor condenser — DIYS-24-HP-C-230A11-O

Installing your own HVAC system is easy with the MRCOOL® DIY® Select 24K BTU 230V Ductless Heat Pump Single Zone Mini-Split Condenser, designed specifically for homeowners. Built for true do-it-yourself installation, it requires no specialized tools, HVAC certifications, or prior experience. Ideal for living rooms, open-concept spaces, large basements, and bonus rooms, it delivers reliable heating and cooling for areas up to 1,050 square feet.

The system combines strong performance with energy efficiency, offering a 16.5 SEER2 cooling rating and an 8.3 HSPF2-4 heating rating for consistent, year-round comfort while helping reduce energy costs.

Installation is simplified with an 11.5-foot Quick Connect® line set that arrives factory pre-charged with environmentally friendly R-454B refrigerant, eliminating vacuum pumps and refrigerant handling. Most components are included, making setup fast and approachable—even for first-time installers.

Comfort control is simple using the included wireless remote or the MRCOOL® Comfort app, which allows temperature adjustments, scheduling, and energy monitoring from anywhere. Compatibility with Amazon Alexa and Google Assistant adds hands-free convenience.

Features like Sleep Mode, Dry Mode, Auto, and a Gold Fin® condenser coating enhance comfort and durability, even in humid or coastal environments.

For added peace of mind, the MRCOOL® DIY® Select system comes with a 2-year compressor warranty and a 1-year parts warranty. This strong, industry-leading coverage demonstrates the pride and confidence MRCOOL has in the craftsmanship and performance of every unit they produce.

Indoor unit — DIYS-24-HP-B-WMAH-230A13-O

The MRCOOL® DIY® Select 24K BTU 230V Ductless Mini-Split Heat Pump Air Handler in black delivers powerful, energy-efficient heating and cooling for spaces up to 1,050 square feet. Its sleek, modern design makes it an excellent choice for living rooms, open-concept spaces, large basements, and bonus rooms. Built for year-round performance, it maintains consistent indoor comfort while helping reduce energy consumption and overall operating costs.

As part of the MRCOOL® DIY® lineup, this system is engineered for true do-it-yourself installation. It works with Quick Connect® line sets that come factory pre-charged with R-454B refrigerant, eliminating the need for vacuum pumps, gauges, or specialized HVAC tools to streamline installation.

The included 13-foot DIYPRO® cable further enhances installation by eliminating the need for electrical conduit while protecting wiring from moisture, pests, and outdoor exposure. This added durability helps ensure long-term reliability and a clean, professional-looking installation.

Comfort control is intuitive and flexible. The included wireless remote allows for quick adjustments, while the MRCOOL® Comfort app provides full system control from virtually anywhere. Users can adjust temperatures, monitor energy usage, and create customized schedules, with added convenience through Amazon Alexa and Google Assistant voice control.

Features like Dry Mode, Sleep Mode, Auto Mode, and programmable scheduling help maintain a balanced indoor environment while improving efficiency. Backed by a 2-year compressor and 1-year parts warranty, this system offers a reliable, cost-effective comfort solution without the need for professional installation.

Documents

• Installation manual (DIYS-24-HP-C-230A11-O) (PDF)
• Service manual (DIYS-24-HP-C-230A11-O) (PDF)
• Remote manual (DIYS-24-HP-C-230A11-O) (PDF)
• Brochure (DIYS-24-HP-C-230A11-O) (PDF)
• Warranty (DIYS-24-HP-C-230A11-O) (PDF)
• AHRI certificate (DIYS-24-HP-C-230A11-O) (PDF)
• EnergyGuide label (DIYS-24-HP-C-230A11-O) (PDF)

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.