MRCOOL
DIY Select 1st Gen - R454B - 24K BTU 230V White Wall Mounted Air Handler - with 13' Communication Cable
Product Overview
The MRCOOL® DIY® Select 24K BTU 230V Ductless Mini-Split Heat Pump Air Handler provides efficient, dependable heating and cooling for spaces up to 1,050 square feet. Ideal for living rooms, open-concept areas, large basements, and bonus rooms, it delivers consistent year-round comfort while helping reduce energy usage and operating costs. Engineered as part of the MRCOOL® DIY® lineup, this unit is designed for true do-it-yourself installation. The compatible Quick Connect® line set is factory pre-charged with environmentally friendly R-454B, eliminating the need for vacuum pumps or refrigerant handling. Additionally, the DIYPRO® cable replaces traditional electrical conduit, simplifying installation while protecting wiring from moisture, pests, and everyday wear. Comfort control is simple and flexible using the included wireless remote or the MRCOOL® Comfort app, which allows you to adjust temperatures, set schedules, and monitor energy usage from anywhere. Voice-control compatibility with Amazon Alexa and Google Assistant adds hands-free convenience. Features like Dry Mode, Sleep Mode, Auto Mode, and programmable scheduling enhance comfort while improving efficiency. A Gold Fin® condenser coating provides added corrosion resistance for long-term durability, even in humid or coastal environments. The MRCOOL® DIY® Select 24K includes a 2-year compressor warranty and 1-year parts warranty.
Shipping & Delivery
Installation video
Published by MRCOOL. Watch the full walkthrough before you start, and follow the installation manual for this model — the video is a guide, not a substitute for it.
Manufacturer Warranty
Covered by MRCOOL's limited warranty. Warranty terms are set by MRCOOL and differ by product line — whether registration is required, and whether the installation has to be performed by a state-licensed HVAC contractor, is not the same across the range. In every case coverage depends on the unit being installed according to MRCOOL's instructions and all applicable codes and permits. MRCOOL's warranty document for this model is the controlling source; ask us and we'll send you the one that applies.
Professional Installation Recommended
Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.
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