MRCOOL DIY Mini-Split Series 5th Generation 27,000 BTU 2-Zone Wall Mounted 9K+12K Heat Pump System

MRCOOL SKU: DIY-MULTI4-27HP230D-O,DIY-09-HP-WMAH-230D25-O,DIY-12-HP-WMAH-230D25-O,2xDIY25-1412-O

MRCOOL DIY 27,000 BTU 2-Zone Wall-Mounted 9K+12K Mini-Split Heat Pump Complete System

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MRCOOL DIY Mini-Split Series 5th Generation 27,000 BTU 2-Zone Wall Mounted 9K+12K Heat Pump System

Delivers up to 23 cooling and 9.5 heating efficiency.
Includes a 27000 BTU outdoor unit, two wall-mounted indoor units, two wireless remote controls, and two 25' pre-charged linesets.
Designed to heat and cool two separate rooms up to 400 sq. ft. and 550 sq. ft.
Pre-charged linesets allow customers to install this ductless system without special tools, equipment, or training.

Save $999.60

MRCOOLSKU: DIY-MULTI4-27HP230D-O,DIY-09-HP-WMAH-230D25-O,DIY-12-HP-WMAH-230D25-O,2xDIY25-1412-O

PRE-SALE! Be the first to receive the new A2L Model upon release in the Summer of 2025

Retail price:

$4,998.00 USD $5,997.60 USD

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Description

Take control of your comfort with the MRCOOL® DIY 5th Generation 27,000 BTU 2-Zone Mini-Split System, built for straightforward installation and powerful year-round performance. With one 9K and one 12K BTU indoor air handler, this setup is ideal for efficiently heating and cooling two separate zones—like a bedroom and living room—without the need for professional HVAC service.

This 5th Generation system includes:

(1) 27k BTU Multi-Zone DIY® Condenser (DIY-MULTI4-27HP230D-O)
(1) 9k BTU Wall-Mounted Air Handler (DIY-09-HP-WMAH-230D25-O)
(1) 12k BTU Wall-Mounted Air Handler (DIY-12-HP-WMAH-230D25-O)
(2) 25 ft DIY® Quick Connect® Line Sets (2xDIY25-1412-O)

Together, this system provides efficient, zoned climate control for up to 1,250 sq. ft., making it perfect for small homes, offices, or apartments.

✅ UL Listed, ETL Listed, and AHRI Certified

🛠️ True DIY Installation

No HVAC license? No problem. The MRCOOL® DIY® system is designed so homeowners can install it themselves. Each Quick Connect® line set comes pre-charged with R-454B refrigerant, eliminating the need for vacuuming or handling refrigerants—just connect, tighten, and power on.

🌿 High Efficiency & Eco-Friendly

The 27k BTU condenser delivers impressive efficiency with 20.5 SEER2 and HSPF2-4 of 9, helping you save on utility bills. The use of R-454B refrigerant supports a lower environmental impact without compromising performance.

📱 Smart Comfort, Anywhere

You’re in control with multiple ways to manage your system:

SmartHVAC app for iOS & Android devices
Amazon Alexa & Google Assistant integration
Wireless remotes for manual adjustments
Follow Me® function targets temperature where the remote is located

💧 Enhanced Humidity Control

Both indoor units feature Dry Mode, which helps remove excess moisture in the air—improving comfort and reducing the risk of mold and mildew in damp environments.

🛡️ Durable & Reliable

The Gold Fin® condenser coating protects the outdoor unit from corrosion, especially in coastal or harsh weather areas. The included DIYPRO® cable provides durable, conduit-free electrical protection against outdoor elements and wildlife.