Heat or cool five rooms with efficient zoning, quiet comfort, and an easy install that skips costly HVAC labor.

The MRCOOL DIY Multi-Zone 48,000 BTU Mini Split gives you flexible heating and cooling across five zones—without needing an HVAC contractor. With four 9K units (400 sq ft each) and one 12K unit (550 sq ft), this system is ideal for homes, rentals, or office setups that need total room-by-room control. With built-in smart control, high efficiency, and powerful zone coverage, this setup does the job right.

Note: Pricing doesn't include the Line Sets. Available to purchase separately. 

Coverage Area

Please refer to this coverage chart to determine the required BTUs for the area you wish to cool or heat.

• Square Feet: Up to 400 | BTU = 9K
• Square Feet: Up to 550 | BTU = 12K
• Square Feet: Up to 800 | BTU = 18K
• Square Feet: Up to 1050 | BTU = 24K
• Square Feet: Up to 1550 | BTU = 36K

Note about condenser sizes versus total air handler capacity: The total capacity of the combined air handlers may exceed the capacity of the condenser in certain configurations. While this provides more flexibility in your setup, you will need to either shut off one of your air handlers (zones) or reduce the output of all zones.

Features

• Easy DIY Installation
  
• Simple to Use
• Multi-room Comfort
• Energy Efficient DC Inverter
• 100% Sealed System
• Gold Fin Condenser
• Eco Safe R-454B Refrigerant
• Smartphone App Controls
• Lifetime Technical Support
• Follow Me Feature
• Low Ambient Cooling

What's Included?

• 1 x MRCOOL 48k DIY 5th Generation 6 Zone Multi-Zone Mini-Split Condenser 230v
• 4 x MRCOOL 9k DIY 5th Generation Mini-Split Air Handler 230v
• 1 x MRCOOL 12k DIY 5th Generation Mini-Split Air Handler 230v

Download Resources

• MRCOOL 5th Gen DIY Quick Start Guide
• MRCOOL Mini-Split Remote Control Owner’s Manual
• MRCOOL 5th Gen DIY Single Zone Varied CFM Coil Performance