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MRCOOL DIY Mini Split - 42,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit, DIYM348HPC00C28

SKU DIYM348HPC00C28

by MRCOOL
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$7,084.00

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MRCOOL DIY Mini Split - 42,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit (DIYM348HPC00C28)

Unleash the power of advanced climate control with the MRCOOL DIY Mini Split 42,000 BTU 3 Zone Ceiling Cassette system — the perfect solution for business owners, contractors, and professionals who want to deliver tailored comfort with unmatched efficiency and ease. Imagine providing your clients with seamless heating and cooling across multiple rooms like offices, garages, workshops, or retail spaces — all with a sleek, low-profile design and hassle-free installation.

At the heart of this system is a robust 48,000 BTU condenser, engineered with a durable Gold Fin® coating that protects against corrosion and wear, making it ideal for demanding environments. With a high-efficiency rating of 20.5 SEER2 and 8.5 HSPF-5, it delivers outstanding energy savings, helping your customers reduce utility costs while enjoying consistent comfort. Designed to perform reliably even in temperatures as low as 5°F, this unit guarantees year-round warmth and peace of mind. Backed by a 7-year compressor warranty and 5-year parts warranty, it’s built to stand the test of time.

The system includes two ceiling cassette air handlers — a 12,000 BTU and an 18,000 BTU unit — both crafted to fit neatly between standard 16” ceiling joists. This ensures a clean, discreet installation that blends effortlessly into any space. The 12K BTU unit efficiently covers rooms between 376 and 500 square feet, while the 18K BTU handles larger areas from 501 to 750 square feet. Both units offer multi-zone compatibility, allowing you to customize comfort room-by-room without the need for ductwork.

Installation is simplified with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, pre-filled with refrigerant and designed for fast, tool-free setup. This means no expensive technicians, no vacuum pumps — just a straightforward, reliable installation process that saves you time and money. Need more reach? The included coupler kit lets you connect multiple line sets to extend coverage effortlessly.

Control is at your fingertips with the SmartHVAC app, enabling your customers to adjust temperature, fan speed, and modes remotely from their smartphone or tablet — perfect for modern living and working environments.

  • Powerful Multi-Zone System: 48,000 BTU condenser paired with 12K and 18K BTU ceiling cassette air handlers for flexible, zone-specific comfort
  • Energy Efficient: High-performance 20.5 SEER2 and 8.5 HSPF-5 ratings reduce operating costs
  • Durable Design: Gold Fin® coating for corrosion resistance and long-lasting reliability
  • Year-Round Heating: Reliable operation down to 5°F for consistent warmth in cold climates
  • Sleek Ceiling Installation: Low-profile air handlers fit between 16” joists for an unobtrusive look
  • Easy DIY Installation: Pre-Charged Quick Connect Line Sets simplify setup without professional tools
  • Smart Control: Manage your system remotely via the intuitive SmartHVAC app
  • Extended Flexibility: Coupler kit allows connection of multiple line sets for expanded reach

This MRCOOL DIY Mini Split system empowers you to deliver professional-grade, efficient multi-zone climate control with ease and confidence. Picture the satisfaction of your customers enjoying perfect comfort in every room, installed quickly and cost-effectively by you — the smart choice for growing your business and exceeding expectations.

Condenser (48K BTU)

  • Streamlined Installation: Take control with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, making installation a breeze without the need for professional assistance.
  • Resilient Protection: Stay safeguarded against wear with the Gold Fin® condenser coating.
  • Unmatched Efficiency: Enjoy remarkable energy savings with a 20.5 SEER2 and 8.5 HSPF-5 rating.
  • Winter-Ready: Generate warmth reliably, even when outdoor temperatures reach as low as 5°F.
  • Comprehensive Warranty: Benefit from a 7-year compressor warranty and a 5-year parts warranty.

Air Handler (12K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 12k BTU Ceiling Cassette fits easily between 16” ceiling joists for a modern, low-profile look.
  • Multi-Zone Compatibility: Operates smoothly with the DIY 4th gen MZ system to support multi-zone configurations and remove the need for ductwork.
  • Ideal Coverage Area: Designed to efficiently heat or cool spaces between 376 and 500 square feet.
  • Remote Control Access: Gain full control of your unit with the SmartHVAC app, providing convenience from virtually anywhere.
  • Effortless Installation: Installation is a breeze with MRCOOL’s Pre-Charged Quick Connect Line Set, allowing a fast and simple setup process.

Air Handler (18K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 18k BTU Ceiling Cassette fits neatly within 16” ceiling joists for a clean and unobtrusive appearance.
  • Multi-Zone Compatibility: Built to work with the DIY 4th gen MZ system for multi-zone functionality and ductless operation.
  • Ideal Coverage Area: Capable of managing heating and cooling needs in spaces of 501 to 750 square feet with ease.
  • Remote Control Access: Take full command using the SmartHVAC app, ensuring convenience whether at home or away.
  • Effortless Installation: With MRCOOL’s Pre-Charged Quick Connect Line Set, setting up the unit is fast and hassle-free—no professional tools required.

Line Set

  • Optimized System Performance: The advanced copper line set connects the MRCOOL Condenser to MRCOOL Air Handlers, enhancing performance for your Multi-Zone system. One line set per indoor unit ensures seamless operation.
  • Pre-Charged Convenience: Designed for simplicity, these line sets are pre-filled with R-410A refrigerant, making installation quick and hassle-free.
  • DIY and Cost Savings: Skip the expensive technician fees with our user-friendly design. Install confidently and save money without compromising quality.
  • Extended Flexibility: Need additional reach? Our coupler kit allows you to effortlessly connect two standard line sets, ensuring unlimited cooling and heating coverage.

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Frequently Asked Questions About MRCOOL DIY Mini Split - 42,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit, DIYM348HPC00C28

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Product Overview

  • Zone / ROOM:

    Zone / ROOM: 3 Zone

  • Air Handler BTU:

    Air Handler BTU: 12k + 12k + 18k

  • Coverage Area:

    Coverage Area: 1750 sq.ft

  • Condenser BTU:

    Condenser BTU: 48k

  • Outdoor Operating Temp (Cool/ heat):

    Outdoor Operating Temp (Cool/ heat): -13°F (-25°C) for heating | 115°F (46°C) for cooling

  • Warranty

    Warranty 7 Year Compressor & 5 Year Parts

MRCOOL DIY Mini Split - 42,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit, DIYM348HPC00C28 Reviews