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Upgrade your home's comfort with the 12k BTU 23.5 SEER2 MRCOOL DIY Ductless Heat Pump Condenser - 5th Generation - with 25 ft Line Set. Designed to efficiently regulate your indoor climate year-round, this condenser offers high performance and energy savings in a compact, user-friendly package. With both UL listing and AHRI certification, it meets rigorous third-party standards to ensure reliable and verified performance for lasting peace of mind.
Perfect for homeowners who prefer hands-on projects, the MRCOOL DIY condenser includes a 25-foot quick connect line set, making installation simple, safe, and fast—no vacuuming or special tools required. The included guide offers clear, step-by-step instructions to walk you through setup. Save on installation costs and get your new HVAC system up and running without waiting for professional service calls.
This 5th Generation MRCOOL condenser offers a host of smart and durable features, including Gold Fin anti-corrosion protection, auto-restart after power outages, and leak detection for added safety. When paired with a compatible indoor unit, you can take full control of your home's environment through the MRCOOL SmartHVAC app or Follow Me technology, which tracks the temperature around your remote. Together, these features ensure efficient, intuitive, and long-lasting climate control.
Specifications
| Model | DIY-12-HP-C-115D25-O |
| UPC | 840255586955 |
| AHRI Number | 216032544 |
| Product Height (in) | 21.85 |
| Product Length (in) | 11.93 |
| Product Width (in) | 30.12 |
| Avg Coverage Area | 500 - 600 Sq Ft |
| Compressor | Inverter |
| Cooling Capacity | 1 Ton |
| Electrical Phase | 1-Phase |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Suction Line Size | 3/8 inch |
| Max Overcurrent Protection | 20 amps |
| Weight (lbs) | 65.48 |
| Refrigerant | R-454B |
| Cooling Efficiency (SEER2) | 23.5 |
| Series | DIY |
| System Application Type | Ductless Split Systems |
| Voltage | 120 |
| Warranty | 5 Year Parts, 7 Year Compressor |
Resources
- DIY5 Quick Start Guide (PDF)
- DIY5 Single Zone Customer Brochure (PDF)
- DIY5 Single Zone Installation Manual (PDF)
- DIY5 Warranty Sheet (PDF)
What's Included
- MRCOOL DIY-12-HP-C-115D25-O
- Owner Manual
- Lifetime Tech Support
Warranty
- 5-Year Parts Warranty
- 7-Year Compressor Warranty
- Lifetime Warranty Available with Registration






