MRCOOL DIY Select 1st Gen - R454B - 9K BTU 115V Black Wall Mount Air handler + Condenser

MRCOOL DIY Select 1st Gen - R454B - 9K BTU 115V Black Wall Mount Air handler + Condenser.

What this system is

• DIYS-09-HP-C-115A11-O — DIY Select 1st Gen - R454B - 9K BTU 115V Condenser w/ 11ft Install Kit
• DIYS-09-HP-B-WMAH-115A13-O — DIY Select 1st Gen - R454B - 9K BTU 115V Black Wall Mounted Air Handler - with 13' Communication Cable

Outdoor condenser — DIYS-09-HP-C-115A11-O

The MRCOOL® DIY® Select 9K BTU 115V Ductless Heat Pump Single Zone Mini-Split Condenser is engineered for true do-it-yourself installation, requiring no specialized tools, prior HVAC experience, or professional labor. Ideal for spare bedrooms, home offices, and other small spaces, it efficiently heats and cools areas up to 400 square feet.

In conjunction with its DIY®-friendly design, the system also delivers strong performance with a 17.5 SEER2 cooling rating and 8.8 HSPF2-4 heating efficiency, providing dependable, 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 the need for vacuum pumps or refrigerant handling. Most components are included, making setup faster, cleaner, and more accessible for first-time installers.

Comfort control is easy 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 convenient voice control.

On the inside, features like Sleep Mode, Dry Mode, Auto, and programmable scheduling enhance everyday comfort. Meanwhile, a Gold Fin® condenser coating on the outside increases durability, even in humid or coastal environments.

Offering powerful warranty protection, the MRCOOL® DIY® Select 9K BTU 115V Ductless Heat Pump Single Zone Mini-Split Condenser includes a 2-year compressor warranty and 1-year parts warranty for added peace of mind.

Indoor unit — DIYS-09-HP-B-WMAH-115A13-O

The MRCOOL® DIY® Select 9K BTU 115V Ductless Mini-Split Heat Pump Air Handler in black is designed to deliver efficient, dependable heating and cooling for spaces up to 400 square feet. Its sleek, modern finish and compact design make it a natural fit for bedrooms, home offices, studios, garages, and other small living areas. Whether enhancing an existing room or adding comfort to a new space, it provides consistent year-round performance while helping reduce energy usage and utility costs.

Engineered as part of the MRCOOL® DIY® lineup, this system is built for true do-it-yourself installation. It pairs with Quick Connect® line sets that come factory pre-charged with R-454B refrigerant, eliminating the need for vacuum pumps, specialized tools, or refrigerant handling. This significantly simplifies installation, saving time and reducing overall project costs.

The included 13-foot DIYPRO® cable further streamlines setup by removing the need for electrical conduit while protecting wiring from moisture, pests, and outdoor exposure. Control is simple and flexible with the included remote or the MRCOOL® Comfort app, allowing users to adjust settings, create schedules, and monitor energy use from anywhere. Voice control compatibility with Amazon Alexa and Google Assistant adds convenience.

Comfort features like Dry Mode, Sleep Mode, and Auto Mode help maintain a balanced indoor environment while optimizing efficiency. This system is made for long-term durability. Backed by a 2-year compressor and 1-year parts warranty, it offers a reliable, cost-effective comfort solution.

Documents

• Installation manual (DIYS-09-HP-C-115A11-O) (PDF)
• Service manual (DIYS-09-HP-C-115A11-O) (PDF)
• Remote manual (DIYS-09-HP-C-115A11-O) (PDF)
• Brochure (DIYS-09-HP-C-115A11-O) (PDF)
• Warranty (DIYS-09-HP-C-115A11-O) (PDF)
• AHRI certificate (DIYS-09-HP-C-115A11-O) (PDF)
• EnergyGuide label (DIYS-09-HP-C-115A11-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.