MRCOOL | DIY Mini Split - 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 and 50 ft. Install Kit | DIYM218HPC01C10

MRCOOL DIY Mini Split System — 4th Gen Multi-Zone 18K BTU

Overview

This 4th Generation MRCOOL DIY Mini Split system is a comprehensive solution for effectively cooling and heating your home, office, or other spaces. The package includes an 18K BTU Multi-Zone Condenser, 9K and 12K BTU Ceiling Cassette Air Handlers, each with its own remote, linesets, and communication wire. The standout feature of this system is its DIY installation, allowing you to install it without the need for a professional HVAC technician or specialized tools.

Note: when all air handlers are operated simultaneously, their combined BTU output will not exceed the 18K BTU capacity of the condenser.

Benefits

• DIY installation saves time and money. No professional HVAC tech needed.
• Two indoor air handlers (9K and 12K) plus one 18K condenser for flexible multi-zone cooling/heating.
• Pre-charged linesets reduce on-site refrigerant handling and setup costs.
• Each air handler comes with its own remote, lineset, and communication wire.
• Energy efficient with 21.2 SEER2 for the condenser.
• Operates in extreme conditions down to -13°F for year-round comfort.
• Comprehensive warranty options: 7-year compressor, 5-year parts; MRCOOL Care lifetime compressor available.

Features

• 4th Gen MRCOOL DIY Multi-Zone system with 18K BTU condenser and 9K/12K ceiling cassette air handlers.
• Each component ships with its own remote, lineset, and communication wire.
• Pre-charged 25 ft lineset for the 9K/12K indoor units (DIY25-1412) and 50 ft lineset for longer runs (DIY50-1412C).
• DIY installation designed to avoid the need for a certified HVAC technician.
• Air handlers are sized for discreet, low-profile installation between joists with 16" center spacing, including pre-manufactured I-joists.
• Elevated filter access: the Elevation function lowers the filter panel for easy maintenance.
• Multiple operation modes on each air handler: COOL, HEAT, AUTO, DRY, and SLEEP.
• Ceiling cassette design blends into the room for a clean look.

Specifications

Condenser

Air Handler 9K BTU

Air Handler 12K BTU

Line Set

Line Set

Information and Guides

Installation Manual
Product Brochure
Performance Specifications
Warranty
Energy Guide
AHRI Certificate