MRCOOL 48K DIY Multi‑Zone Bundle with 18K + 24K Wall Units + 25ft Line Sets — R‑454B DIYM248HPW06D07

MRCOOL 48K DIY Multi‑Zone Bundle with 18K + 24K Wall Units + 25ft Line Sets — R‑454B DIYM248HPW06D07 

The MRCOOL 48K DIY Multi‑Zone Bundle with 18K + 24K Wall Units + 25ft Line Sets — R‑454B DIYM248HPW06D07 brings powerful, customizable climate control into your home with an advanced 48,000 BTU condenser and high‑capacity indoor units. Designed for homeowners who want to condition large spaces — such as oversized living rooms, master bedrooms, finished basements, dens, workshops, or offices — this dual‑zone mini‑split system delivers efficient heating and cooling without the need for professional HVAC installation. Everything you need for true DIY setup is included, from pre‑charged Quick‑Connect line sets to intuitive smart controls.

Built on MRCOOL’s robust 48K 6‑zone condenser platform, this bundle supports expansion up to six indoor units, which makes it ideal for future upgrades or multi‑area comfort needs. Featuring R‑454B refrigerant, this system offers next‑generation efficiency with a whisper‑quiet DC inverter compressor and corrosion‑resistant Gold Fin® coating for lasting performance.

The included 18K and 24K wall‑mounted air handlers ensure balanced comfort across two large zones with advanced features such as Follow‑Me® temperature sensing, Dry Mode humidity control, and seamless app or voice‑enabled control via SmartHVAC™, Alexa, or Google Home. All connections are designed for a true DIY experience — no vacuum pump, gauges, or refrigerant handling required.

With its comprehensive accessories, user‑friendly installation, and powerful climate‑management capabilities, the MRCOOL DIYM248HPW06D07 bundle is an excellent choice for homeowners looking to enhance comfort and control across larger spaces while maintaining flexibility for future expansion.

Features

• 21.8 SEER2 efficiency
• Efficient heating in cold climates
• Up to 2,000 sq. ft. total capacity
• Supports up to 6 indoor units
• SmartHVAC™ WiFi for app control & voice control
• Quick-Connect ports = NO vacuum pump needed
• Quiet DC inverter compressor
• Gold Fin® corrosion-resistant coating
• 5-year parts + 7-year compressor warranty
• Optional MRCOOL Care program = Limited Lifetime warranty

Specifications

What’s Included 

✔ Outdoor Condenser

• 1 × DIY-MULTI6-48HP230D-O (48K, 6-zone)

✔ Indoor Air Handlers

• 1 × DIY-18-HP-WMAH-230D25-O (18K)
• 1 × DIY-24-HP-WMAH-230D25-O (24K)

✔ Line Sets (25 ft each)

• 1 × DIY25-1412-O
• 1 × DIY25-3858-O

✔ Accessories

• Remote controllers
• SmartHVAC module
• DIYPro® cables
• Wall sleeves
• Hardware & manuals

Frequently Asked Questions (FAQ's)

Is this system fully DIY?

Yes — no special tools, pumps, or gauges required.

Can I add more indoor units later?

Yes — up to 6 total zones.

Are these line sets pre-charged with refrigerant?

Yes, both 25ft line sets are factory-charged with R-454B.

What size rooms will the 18K and 24K units cover?

• 18K: 700–800 sq. ft.
• 24K: 1,000–1,050 sq. ft