Upgrade your home comfort with the advanced 5th Generation MRCOOL DIY 18,000 BTU Single Zone Mini Split System, designed to efficiently heat and cool spaces between 500 and 750 square feet. Built for homeowners who want powerful performance without the cost of professional installation, this innovative ductless mini split includes a 25-foot QuickConnect® line set and DIYPRO® cable for a fast, hassle-free setup with no special tools or HVAC experience required.
Engineered for year-round comfort and energy-efficient operation, this MRCOOL DIY mini split system uses environmentally friendly R-454B refrigerant, helping reduce environmental impact while delivering reliable heating and cooling performance. Whether you're upgrading a bedroom, garage, office, addition, or small living space, this system offers customizable climate control through the included wireless remote, SmartHVAC app, Amazon Alexa, and Google Assistant compatibility.
Key Features & Benefits
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Easy DIY Installation – Install your mini split system without specialized tools, vacuum equipment, or professional assistance.
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25-Foot QuickConnect® Line Set – Pre-charged with R-454B refrigerant for a simplified, vacuum-free installation process.
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Energy-Efficient Heating & Cooling – Delivers reliable year-round comfort while helping reduce energy consumption and utility costs.
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Eco-Friendly R-454B Refrigerant – Lower Global Warming Potential (GWP) compared to traditional R-410A refrigerant.
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DIYPRO® Cable Included – Provides enhanced protection against outdoor weather conditions, UV exposure, and wildlife damage without requiring electrical conduit.
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Smart Control Compatibility – Easily manage temperatures and operating modes using the wireless remote, SmartHVAC app for Apple and Android devices, or voice control through Amazon Alexa and Google Assistant.
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Follow Me Technology – Automatically adjusts airflow and temperature based on the location of the remote for personalized comfort.
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Dry Mode Operation – Helps reduce indoor humidity levels for improved comfort and indoor air quality.
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Gold Fin® Condenser Protection – Corrosion-resistant coating enhances durability and long-term performance, especially in coastal and high-humidity environments.
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Industry-Leading Warranty Coverage – Includes a 7-year compressor coverage, and 5-year parts warranty for long-term peace of mind.
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Intertek Certified – Intertek-listed (5031495) to meet strict safety and performance standards.
The 5th Generation MRCOOL DIY 18K BTU Mini Split is the ideal solution for homeowners seeking an energy-efficient, easy-to-install ductless heating and cooling system with smart technology, dependable performance, and long-lasting durability. Perfect for residential applications where comfort, convenience, and efficiency matter most.
Specifications
| Dimensions & Weight |
| Condenser Dimensions |
35.04 W" x 13.46 D" x 26.50 H" |
| Air Handler Dimensions |
42.52 W" x 8.90 D" x 13.19 H" |
| Condenser Weight |
93.48 lbs / 42.4 kg |
| Air Handler Weight |
35.49 lbs / 16.1 kg |
| Capacity & Performance |
| Zone Capacity |
1 |
| Cooling Capacity |
18,000 BTU |
| EER2 |
13.7 |
| SEER2 |
22.5 |
| Heating Capacity |
18,000 BTU |
| HSPF2-4 |
11.5 |
| HSPF2-5 |
8.5 |
| Coverage Area |
500 to 750 sq ft. |
| Outdoor Noise Level |
58.5 dB(A) |
| Indoor Noise Level (Hi/Mi/Lo) |
54.5/44.5/40.5/30.5/19.0 dB(A) |
| Electrical Requirements |
| Voltage |
208-230V |
| Phase |
1 |
| Cycle |
60 Hz |
| Max Fuse Breaker |
20A |
| Min Circuit Ampacity |
18A |
| Refrigerant & Piping |
| Refrigerant Type |
R-454B |
| Refrigerant Volume |
44.80 oz |
| Liquid Line Size |
1/4" |
| Suction Line Size |
1/2" |
| Max Line Set Length |
98.4 ft. |
| Features |
| Inverter |
DC |
| Compressor Type |
Rotary |
| Fan Only Option |
Yes |
| Quiet Mode |
Yes |
| Auto Cool |
Yes |
| Wifi Compatibility |
Yes |
| App Compatibility |
Yes |
| Works with IOS |
Yes |
| Works with Android |
Yes |
| Remote Control Included |
Yes |
| Certifications & Warranty |
| Certifications |
UL Listed, ETL Listed, Energy Star Certified, AHRI Certified |
| Warranty |
7 Years Compressor
5 Years Parts |
Information & Manual
Installation Manual
Brochure
Service Manual
Remote Manual
Accessory Manual
Warranty Info
AHRI Certs
Energy Guide
