MRCOOL DIY 4th Gen Multi-Zone 3-Zone 48,000 BTU 21 SEER (12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump

DIY 4th Gen Multi-Zone 3-Zone 48,000 BTU 21 SEER (12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump

The MRCOOL DIY Multi-Zone 48,000 BTU 21 SEER 3 Zone Ductless Heat Pump Split System (12K + 12K + 18K) offers powerful, energy-efficient heating and cooling for up to three rooms. Designed for simple, tool-free installation, this system allows homeowners to enjoy professional-grade climate control without the high cost of professional installation. With a 48,000 BTU condenser, the system includes two 12,000 BTU air handlers (each covering up to 550 sq. ft.) and one 18,000 BTU air handler (covering up to 800 sq. ft.), ensuring even, customizable comfort throughout your home.

This ductless HVAC solution functions as both an air conditioner and a heat pump, capable of cooling in the summer, heating in the winter, and dehumidifying during humid seasons. When in heating mode, it pulls in warmth from the outdoor air, making it an efficient alternative to traditional heating systems. The MRCOOL DIY 4th Gen Multi-Zone system supports up to five indoor units, allowing for future expansion if additional zones are needed.

Say goodbye to expensive HVAC technicians—the MRCOOL DIY system features Quick Connect line sets that come pre-charged with eco-friendly R-410A refrigerant, making installation fast, simple, and stress-free. No vacuum pump or special tools are required, and easy-to-follow video tutorials guide you through the process step by step.

Enjoy full control over your indoor climate with the MRCOOL Smart Controller app, available on Apple and Android devices. Adjust temperature settings, switch between modes, and monitor system performance from anywhere. For hands-free convenience, the system also integrates seamlessly with Amazon Alexa and Google Home, allowing voice-activated control. Each air handler includes a wireless remote for easy operation, and the digital display provides clear temperature readings, mode indicators, and real-time system alerts.

Each indoor unit features directional airflow control, ensuring even distribution of heated or cooled air so every corner of the room stays comfortable. Auto mode allows the system to adjust output based on the room’s temperature, while the drying function keeps humidity levels in check.

For energy-conscious users, the timer function and sleep mode help optimize power usage, reducing electricity bills while maintaining comfort. Sleep mode operates within an 8-hour window, gradually adjusting temperature settings for a more energy-efficient nighttime experience.

Keeping your system running smoothly is effortless. The digital display provides automatic alerts for air filter cleaning and low refrigerant levels, so you’ll always know when maintenance is needed. Troubleshooting codes appear directly on the front display, and the user manual provides a quick-reference guide for resolving common issues.

For added convenience, you can mute the system to eliminate alert sounds and turn off the LED display—perfect for bedrooms and quiet spaces. In the event of a power outage, the MRCOOL system will automatically resume operation with the same settings once power is restored.

This system is an excellent choice for homeowners looking to upgrade their heating and cooling solution without breaking the bank—providing high performance, smart technology, and DIY-friendly installation all in one package.

• Easy DIY® Installation
• "Pre-charged DIY®
• Quick Connect Line Set
• Simple to Use
• Multi-room Comfort
• Energy Efficient DC Inverter
• 100% Sealed System
• Gold Fin® Condenser
• Eco Safe R-410A Refrigerant
• Smartphone App Controls
• Lifetime Technical Support
• Follow Me® Feature
• Low Ambient Cooling
• 16 Ft Line Set For Each Air Handler

Your Satisfaction with MRCOOL is Guaranteed:

• 5 Year Parts Warranty, 7 Year Compressor Warranty
• Lowest Price Guarantee