MRCOOL DIY Hybrid 36K BTU 3-Ton Ducted Air Handler Multi-Position 208/230V DIY-36-HP-MUAH-230D25-O
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The 36K MRCOOL® DIY Hybrid Air Handler offers a powerful and adaptable solution for heating and cooling areas up to 1,500 square feet. Engineered for compatibility with MRCOOL® DIY condensers, this unit delivers the comfort of a central HVAC system with the installation simplicity of a DIY mini-split. Whether you are replacing an aging air handler or building out a new system, the DIY Hybrid brings central ducted performance together with multi-zone flexibility—all without requiring professional installation. Its rugged painted galvanized steel cabinet ensures long-term durability, while the onboard self-diagnostics panel streamlines maintenance and troubleshooting with clear error codes. Designed to support multiple installation positions, it fits seamlessly into upflow, downflow, or horizontal left or right configurations to match your home's layout.
Key Features
- Central ducted comfort with DIY mini-split installation simplicity
- Pairs with MRCOOL® DIY multi-zone condensers — treat it like a multi-zone indoor unit
- Multi-position installation: upflow, downflow, horizontal left or right
- Supports up to 3 additional satellite wall-mount or ceiling cassette air handlers on the same condenser
- Optional electric heat kit available: 5kW, 8kW, 10kW, 15kW, or 20kW
- Integrated self-diagnostics panel for fast error identification and reduced downtime
- R-454B eco-friendly refrigerant with lower Global Warming Potential than R-410A
- Electronic Expansion Valve (EEV) metering for precise efficiency control
- Includes MRCOOL® Smart Wi-Fi Thermostat for app and touchscreen control
- AHRI certified | ETL certified | UL listed | CSA certified
- 4-speed fan motor: 1189 / 1083 / 971 / 865 CFM
Technical Specifications
| SKU / Model | DIY-36-HP-MUAH-230D25-O |
| Series | DIY Hybridâ„¢ Air Handler |
| Unit Type | Split System Ducted DIY Air Handler |
| Cooling Capacity | 36,000 BTU |
| Heating Capacity | 37,000 BTU |
| Coverage Area | Up to 1,500 sq. ft. |
| Tonnage | 3 Ton |
| Voltage | 208/230V, 1-Phase, 60Hz |
| Max Fuse / Breaker | 15A |
| Min Circuit Ampacity | 6A |
| Refrigerant | R-454B |
| Lineset Included | No — sold separately |
| Max Lineset Length | 246 ft. |
| Liquid Line Size | 3/8 in. |
| Suction Line Size | 5/8 in. |
| CFM (4 speeds) | 1189 / 1083 / 971 / 865 |
| Sound Level (Low / High) | 31 / 48 dBA |
| Configuration | Multi-Position (Upflow, Downflow, Horizontal L/R) |
| Auxiliary Heater Available | Yes — 5kW, 8kW, 10kW, 15kW, 20kW |
| Drain Connection | 3/4 in. |
| Metering Device | EEV |
| Net Weight | 128.31 lbs. |
| Net Dimensions (D x H x W) | 21.02 in. x 49.02 in. x 21.02 in. |
| Gross Weight | 153.66 lbs. |
| GTIN / Barcode | 00840255588416 |
| Color | Gray |
Product Documentation
- MRCOOL DIY Hybrid Air Handler Product Brochure (PDF)
- MRCOOL DIY Hybrid Air Handler Installation and Owner Manual (PDF)
- MRCOOL DIY Hybrid Air Handler Service Manual (PDF)
- MRCOOL DIY Hybrid Air Handler Match-Up Guide (PDF)
- MRCOOL DIY 5th Gen Warranty Document (PDF)
- MRCOOL DIY Hybrid 36K AHRI Certificates (PDF)
- MRCOOL DIY Hybrid 36K EnergyGuide Certificate (PDF)