Description
MRCOOL DIY 5th Gen E Star 12,000 BTU Single Zone Mini Split Complete System with 25 Ft. Line Set, 115V – DIY-12-HP-WM-115D25-O
Introducing the 5th Gen MRCOOL® DIY® 12K BTU Single Zone Mini-Split Air Handler for year-round heating and cooling in spaces 350 to 500 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
| Dimensions & Weight | |
|---|---|
| Condenser Dimensions | 30.12 W“ x 11.93 D“ x 21.85 H“ |
| Air Handler Dimensions | 31.57 W“ x 7.44 D“ x 11.69 H“ |
| Condenser Weight | 65.48 lbs / 29.7 kg |
| Air Handler Weight | 24.91 lbs / 11.3 kg |
| Capacity & Performance | |
| Zone Capacity | 1 |
| Cooling Capacity | 12,000 BTU |
| EER2 | 12.5 |
| SEER2 | 23.5 |
| Heating Capacity | 12,000 BTU |
| HSPF2-4 | 10.2 |
| HSPF2-5 | 7.6 |
| Coverage Area | 350 to 500 sq ft. |
| Outdoor Noise Level | 54 dB(A) |
| Indoor Noise Level (Hi/Mi/Lo) | 43.0/39.5/33.5/24.0/18.0 dB(A) |
| Electrical Requirements | |
| Voltage | 115V |
| Phase | 1 |
| Cycle | 60 Hz |
| Max Fuse Breaker | 20A |
| Min Circuit Ampacity | 18A |
| Refrigerant & Piping | |
| Refrigerant Type | R-454B |
| Refrigerant Volume | 30.34 oz |
| Liquid Line Size | 1/4″ |
| Suction Line Size | 3/8″ |
| Max Line Set Length | 82 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 |
What our Experts Think
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True DIY-Friendly — Pre-charged 25 ft QuickConnect® line set makes installation easy without special tools or vacuum pumps.
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High Efficiency — Impressive 23.5 SEER2 rating saves energy while cooling/heating rooms up to 550 sq. ft.
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Smart Control — Compatible with SmartHVAC app, Amazon Alexa, and Google Assistant for remote and voice operation.
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Built to Last — Gold Fin® condenser resists corrosion; durable DIYPRO® cable protects against weather and pests.
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Eco-Friendly Refrigerant — Uses low-GWP R-454B refrigerant to minimize environmental impact.
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Strong Warranty — Offers 7-year compressor and 5-year parts limited warranty for reliable long-term use.
Q&A
Q: What is the cooling capacity?
A: 12,000 BTU (1 Ton).
Q: Is this system easy to install?
A: Yes, designed for DIY with a complete kit included.
Q: What voltage does it use?
A: Operates on standard 115V power.
Q: What is included in the package?
A: Complete system with indoor/outdoor units and a 25 ft. line set.
Maintenance Tips
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Clean or replace air filters every 1–3 months to ensure efficient airflow
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Keep the outdoor unit clear of debris, leaves, and dirt for optimal performance
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Inspect evaporator and condenser coils annually and clean as needed
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Check electrical connections and refrigerant lines regularly for damage or leaks
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Clear condensate drain lines to prevent water buildup and mold
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Avoid obstructing airflow around indoor and outdoor units
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Schedule annual professional maintenance to extend system lifespan
Reviews
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