MRCOOL 5th Gen DIY Mini Split - 39,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-348HP091218

MRCOOL DIY Mini Split - 39,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump (DIY-BC-348HP091218)

Experience advanced multi-zone climate control with the MRCOOL DIY 4th Generation Mini Split, designed for easy installation and reliable performance. This 39,000 BTU system is ideal for contractors and business owners seeking efficient, ductless heating and cooling solutions for homes, garages, workshops, and more—without the complexity of traditional HVAC setups.

Featuring MRCOOL’s patented Pre-Charged Quick Connect Line Sets, this system allows you to install the condenser and air handlers quickly without vacuum pumps or special tools, saving time and labor costs. The DIY-friendly design empowers you to confidently handle installations yourself, expanding your service capabilities and customer base.

• Capacity: 48,000 BTU condenser supporting multi-zone operation
• Efficiency: 20.5 SEER2 cooling and 8.5 HSPF-5 heating ratings deliver significant energy savings
• Protection: Gold Fin® coating guards against corrosion and wear for long-lasting durability
• Cold Climate Ready: Reliable heating performance down to outdoor temperatures of 5°F
• Warranty: 7-year compressor and 5-year parts warranty ensure peace of mind

This system includes three ceiling cassette air handlers designed to fit between standard 16” ceiling joists, providing flexible coverage across multiple rooms:

• 9,000 BTU Unit: Ideal for small rooms between 180 and 375 sq. ft., perfect for bedrooms or small offices
• 12,000 BTU Unit: Suitable for medium-sized spaces from 376 to 500 sq. ft., such as larger bedrooms or workspaces
• 18,000 BTU Unit: Covers larger areas between 501 and 750 sq. ft., fitting for living rooms or commercial zones

Each air handler integrates seamlessly with the DIY 4th Gen multi-zone system, eliminating ductwork and enabling precise temperature control in up to three zones.

Your customers can enjoy full remote control of their system via the SmartHVAC app, managing temperature settings, schedules, and system monitoring from anywhere using a smartphone or tablet. This modern convenience enhances user experience and satisfaction.

• Fast, DIY Installation: Pre-charged quick connect lines simplify setup without professional tools
• Multi-Zone Flexibility: Independently control three zones with one efficient system
• Energy Efficient: High SEER and HSPF ratings reduce energy consumption and costs
• Discreet Ceiling Cassette Design: Fits between joists for a clean, unobtrusive look
• Reliable Warranty: 7 years on compressor and 5 years on parts for lasting confidence

The MRCOOL DIY 39,000 BTU 3 Zone Mini Split offers a powerful, energy-efficient, and easy-to-install solution that meets the demands of modern comfort. Perfect for contractors and business owners seeking to provide high-quality HVAC solutions with reduced installation time and increased customer satisfaction, this system is a smart investment for growing your business and delivering exceptional comfort across multiple zones.

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 (9K BTU)

• Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 9k BTU Ceiling Cassette fits seamlessly between 16” ceiling joists, delivering a sleek and space-saving installation.
• Multi-Zone Compatibility: Designed to integrate with the DIY 4th gen MZ system, it enables multi-zone configurations and eliminates the need for ductwork.
• Ideal Coverage Area: Perfect for spaces ranging from 180 to 375 square feet, making it suitable for both small and medium-sized rooms.
• Remote Control Access: Enjoy effortless control with SmartHVAC app compatibility, enabling management from anywhere via a smartphone or tablet.
• Effortless Installation: Simplify setup with MRCOOL’s Pre-Charged Quick Connect Line Set—no vacuuming or special tools needed.

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.

ELECTRICAL REQUIREMENTS

SPECIFICATIONS & DIMENSIONS

INSTALLATION & GUIDES

Installation Manual
Product Brochure
Performance Specifications
Warranty
Energy Guide
AHRI Certificate