MRCOOL DIY 5th Gen E Star 36,000 BTU Multi Zone Mini Split Air Handler 230V (DIY-36-HP-WMAH-230D25-O)

MRCOOL DIY 5th Gen E Star 36,000 BTU Multi Zone Mini Split Air Handler 230V (DIY-36-HP-WMAH-230D25-O)

The 5th Generation MRCOOL® DIY® 36K BTU Ductless Mini-Split Heat Pump is an efficient and versatile heating and cooling solution for spaces up to 1550 sq. ft. Designed for true do-it-yourself installation, it requires no special tools or professional help, making setup quick, straightforward, and cost-effective. A key feature of this system is the pre-charged 25-foot DIY® QuickConnect® line set, arriving to you already filled with R-454B refrigerant. 

This eliminates the need for vacuuming, reducing both installation time and expense. The included DIYPRO® cable further simplifies setup by removing the need for electrical conduit while enhancing durability against outdoor elements and wildlife. You can easily control the system using the included wireless remote, the SmartHVAC app on Apple and Android devices, or voice commands through Amazon Alexa and Google Assistant. For enhanced comfort, the Follow Me function ensures even temperature distribution by adjusting airflow based on the remote’s location. Dry Mode helps maintain a pleasant indoor environment by reducing excess humidity. Built for longevity, the Gold Fin® Condenser resists corrosion, making it ideal for coastal areas.

This system is backed by a robust warranty package, including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty. Experience effortless installation, smart features, and reliable year-round comfort with MRCOOL® DIY®.

Features

• NEEP ccASHP Listed
• Intertek listed 5031495
• Easy DIY installation
• Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
• Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
• The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.

Specifications

What our Experts Think

• Powerful Performance – 36,000 BTU capacity delivers strong cooling and heating for larger spaces.

• Energy Star Certified – High efficiency helps lower energy costs while maintaining comfort.

• DIY-Friendly Setup – Designed for hassle-free installation with MRCOOL pre-charged line sets.

• Multi-Zone Flexibility – Connects with multiple air handlers for customized whole-home comfort.

• Smart Control Ready – Wi-Fi enabled for operation via app, Alexa, or Google Assistant.

Q&A

Q: What is the capacity of the MRCOOL DIY 36K Multi Zone Air Handler?
A: It delivers 36,000 BTUs, making it powerful enough to heat and cool large areas or multiple connected zones.

Q: Is it energy efficient?
A: Yes, it’s Energy Star certified for high efficiency and lower energy bills.

Q: Can homeowners install this unit themselves?
A: Absolutely—it’s designed for DIY installation with MRCOOL’s pre-charged Quick Connect lines.

Q: Does it support both heating and cooling?
A: Yes, it’s a heat pump system that provides year-round comfort.

Q: Who is this air handler best suited for?
A: Perfect for homeowners needing a powerful, DIY-friendly solution for large spaces or multi-zone setups.

Maintenance Tips

• Clean air filters every 2–4 weeks to maintain airflow and energy efficiency.

• Wipe the unit’s exterior with a soft, damp cloth; avoid harsh chemicals.

• Inspect the condensate drain line periodically to prevent blockages and leaks.

• Keep vents and airflow paths clear of obstructions.

• Check electrical connections and line set periodically for wear or damage.

• Use the self-cleaning function (if available) to reduce mold and bacteria.

• Schedule annual professional servicing to ensure peak performance and longevity.