MRCOOL 48K DIY Multi-Zone Bundle With Two 18K Air Handlers & 16ft Line Sets 48,000 BTU Multi-Zone Ductless Mini-Split System DIYM248HPW05D00

MRCOOL 48K DIY Multi-Zone Bundle With Two 18K Air Handlers & 16ft Line Sets 48,000 BTU Multi-Zone Ductless Mini-Split System DIYM248HPW05D00

The MRCOOL 48K DIY Multi-Zone Bundle With Two 18K Air Handlers & 16ft Line Sets 48,000 BTU Multi-Zone Ductless Mini-Split System (model DIYM248HPW05D00) is engineered to provide powerful, customizable climate control for larger spaces — all without the need for expensive HVAC labor. Designed with serious heating and cooling needs in mind, this high-capacity system delivers up to 48,000 BTU of performance, making it ideal for master bedrooms, living areas, workshops, basements, and high-ceiling rooms that demand robust comfort solutions.

This bundle brings together a top-tier 48K double-stack condenser paired with two 18,000 BTU indoor wall-mounted air handlers, offering significant capacity for oversized areas while still supporting smaller zones independently. With MRCOOL’s SmartHVAC Wi-Fi controller and DIYPro® cable technology included, you can manage settings easily with your smartphone or voice assistants like Amazon Alexa and Google Home without complicated installation tools or refrigerant handling.

Featuring patented DIY® Quick-Connect® pre-charged line sets, this system eliminates the need for vacuum pumps, gauges, or HVAC training — simply tighten and lock the fittings and you’re ready to go. Pre-charged with eco-friendly R-454B refrigerant and equipped with corrosion-resistant Gold-Fin® coating, the bundle is built for long-lasting durability and year-round comfort across two large rooms.

Whether you’re upgrading your home comfort or outfitting a large living space, this MRCOOL bundle combines high-end performance with true DIY convenience — giving you professional-grade heating and cooling capability without the professional installation cost.

Features

• True DIY installation with patented Quick-Connect® pre-charged line sets — no vacuum pumps or refrigerant work required.

• Powerful 48,000 BTU double-stack condenser supports up to six zones (expandable beyond the included two zones).

• SmartHVAC Wi-Fi control via smartphone, Alexa, or Google Home included.

• Gold-Fin® anti-corrosion coating for enhanced durability.

• Whisper-quiet indoor operation with Follow-Me® temperature sensing.

• Energy-efficient inverter compressor with 21.8 SEER2 cooling efficiency.

• Built-in Dry Mode for humidity control.

Specifications

What’s Included

✔ Outdoor Unit

• DIY-MULTI6-48HP230D-O (48K multi-zone condenser)

✔ Indoor Units

• (2) × DIY-18-HP-WMAH-230D25-O
  18K wall-mount air handlers

✔ Line Sets

• (2) × DIY16-1412-O
  16ft 1/4 × 1/2 pre-charged R-454B line sets 

✔ Accessories

• SmartHVAC WiFi controller
• DIYPro® communication cables
• Mounting plates, hardware, wall sleeves
• Remote controls
• Installation manuals

Frequently Asked Questions (FAQ's)

Do the 18K units heat well in winter?

Yes — they provide reliable heating using inverter technology.

Can the 48K condenser run six zones later?

Absolutely. You can expand as your needs grow.

Is the installation really DIY?

Yes — Quick-Connect line sets eliminate vacuum pumps and gauges.

What’s the room size coverage for each 18K unit?

Typically 700–800 sq. ft. depending on layout and insulation.

Is this system WiFi-ready?

Yes — full SmartHVAC control out of the box.