MRCOOL 48K DIY Multi‑Zone 2‑Zone System (24K + 24K) with 25 ft Quick‑Connect Line Sets

MRCOOL 48K DIY Multi‑Zone 2‑Zone System (24K + 24K) with 25 ft Quick‑Connect Line Sets

The MRCOOL 48K DIY Multi‑Zone 2‑Zone System is engineered for homeowners seeking powerful, flexible heating and cooling without the need for professional HVAC installation. At its core is a robust 48,000 BTU 6‑zone‑capable condenser paired with two 24,000 BTU wall‑mount air handlers — delivering comfort to large living areas, master suites, finished basements, or open floor plans. The system’s high‑efficiency inverter technology and R‑454B refrigerant ensure year‑round comfort while keeping energy costs low.

Installation is truly DIY‑friendly thanks to MRCOOL’s patented Quick‑Connect pre‑charged line sets that eliminate the need for vacuum pumps, gauges, or refrigerant handling. The bundle includes 25 ft Quick‑Connect line sets that are factory‑charged with R‑454B, along with all the accessories and hardware needed to complete your setup. Smart control options make managing comfort easy — adjust settings via the SmartHVAC app, Amazon Alexa, or Google Assistant.

The indoor air handlers are designed for whisper‑quiet operation and feature advanced airflow, “Follow Me” remote temperature sensing, auto restart, and dry mode for dehumidification. With the flexibility to expand up to six indoor units on the condenser, this system can grow as your comfort needs evolve over time.

Whether you’re upgrading an existing space or outfitting a new build, the MRCOOL DIY Multi‑Zone System balances professional performance with practical DIY installation, making high‑capacity cooling and heating accessible to more homeowners.

Features

• DIY Quick‑Connect Line Sets – Factory pre‑charged with R‑454B refrigerant, no vacuum pump or special tools required.

• Smart Control Compatibility – Works with SmartHVAC app, Amazon Alexa, and Google Assistant.

• Expandable Multi‑Zone Platform – Supports up to six indoor units.

• Whisper‑Quiet Indoor Operation – Low‑noise variable inverter fan and advanced airflow.

• Follow Me® Temperature Sensing – Remote sensor for personalized comfort.

• Automatic Modes – Auto restart, dry/humidity control, multi‑speed airflow.

• Durable & Efficient – High SEER2 performance, inverter technology, and energy‑saving operation.

Specifications

What’s Included 

✔ Outdoor Unit

• (1) DIY-MULTI6-48HP230D-O 48K 6-Zone Condenser 

✔ Indoor Units

• (2) DIY-24-HP-WMAH-230D25-O (24K Wall Air Handlers)

✔ Line Sets

• (2) DIY16-3858-O (25 ft, precharged) 

✔ Accessories

• Remotes
• Wall mounting hardware
• SmartHVAC module
• DIYPro® communication cables
• Manuals & installation supports

Frequently Asked Questions (FAQ's)

 Is this system fully DIY?

Yes — MRCOOL’s Quick-Connect system eliminates the need for professional refrigerant work.

How large of a space can this setup handle?

Two 24K units can cover 2,000–2,100 sq ft combined.

Can I expand this system?

Yes — up to six indoor units total.

Do the line sets include refrigerant?

Yes — they’re fully charged with R-454B and sealed at the factory.

Are both air handlers identical?

Yes — two 24K units to support evenly distributed large-zone coverage.