MRCOOL DIY® 5th Gen E Star 18,000 BTU Single Zone Mini Split Complete System with Ceiling Cassette Air Handler, 25 Ft. Line Set, 230V (DIY-18-HP-CM-230D25-O)

MRCOOL DIY® 5th Gen E Star 18,000 BTU Single Zone Mini Split Complete System with Ceiling Cassette Air Handler, 25 Ft. Line Set, 230V (DIY-18-HP-CM-230D25-O)

Introducing the 5th Gen MRCOOL® DIY® 18K BTU Single Zone Mini-Split with Ceiling Cassette Air Handler for year-round heating and cooling in spaces 500 to 750 sq. ft. Easy DIY installation with included 25 ft. QuickConnect® line set and DIYPRO® cable. Customize comfort with wireless remote, SmartHVAC app, or voice commands. Industry-leading warranty for reliable, energy-efficient performance.

Features

• DIY Installation: Easy, tool-free setup with no prior experience required.
• DIY® QuickConnect® Line Set: Pre-charged with R-454B refrigerant for quick and vacuum-free installation.
• Environmentally Friendly Refrigerant: R-454B refrigerant has a lower Global Warming Potential (GWP) than older refrigerants like R-410A, reducing environmental impact while improving energy efficiency.
• DIYPRO® Cable: Eliminates the need for electrical conduit, offering enhanced durability against outdoor elements and wildlife.
• Wireless Control Options: Use the included remote, SmartHVAC app (Apple and Android), or voice commands via Amazon Alexa and Google Assistant.
• Follow Me Function: Maintains consistent comfort by adjusting airflow based on the remote’s location.
• Dry Mode: Acts as a dehumidifier to reduce excess moisture and improve indoor air quality.
• Gold Fin® Condenser: Provides corrosion resistance for coastal homes, ensuring long-lasting performance.
• Industry-Leading Warranty: Limited lifetime warranty, 7-year compressor warranty, and 5-year parts warranty.
• Certified Quality: Intertek listed 5031495 for reliable performance and safety.
  

Specifications

What our Experts Think

• Perfect Mid-Size Solution – With 18,000 BTU, this single-zone system is ideal for bedrooms, offices, or medium living spaces.

• Energy Star Certified – High efficiency means lower utility bills and eco-friendly performance.

• Ceiling Cassette Comfort – Discreet design frees up wall space while delivering even air distribution.

• DIY-Friendly Install – Includes a 25 ft. pre-charged line set for quick, tool-free installation without special equipment.

• Year-Round Use – Heat pump design ensures reliable cooling in summer and efficient heating in winter.

Q&A

Q: What size room does this 18,000 BTU system cover?
A: It efficiently heats and cools areas up to 750 sq. ft..

Q: Does this model come with a pre-charged line set?
A: Yes, it includes a 25 ft. pre-charged No-Vac line set for hassle-free DIY installation.

Q: What type of air handler does it use?
A: This model features a slim ceiling cassette air handler for discreet, space-saving comfort.

Q: Is it Energy Star certified?
A: Yes, it is Energy Star rated, ensuring high efficiency and energy savings.

Q: Can it heat as well as cool?
A: Absolutely — it functions as a heat pump, providing year-round comfort.

Q: Who is this unit best for?
A: Homeowners wanting a DIY-friendly, efficient ceiling cassette mini split for single-zone climate control.

Maintenance Tips

• Clean or replace the air filters every 1–2 months for peak airflow and efficiency.

• Wipe ceiling cassette panels and vents to prevent dust buildup.

• Check the 25 ft. pre-charged line set for secure, leak-free connections.

• Inspect the condensate drain regularly to avoid clogs and water leaks.

• Keep the outdoor condenser free from debris, leaves, and obstructions.

• Test the remote or smart controls to ensure smooth operation.

• Schedule annual professional servicing to maintain SEER performance and extend system life.