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Discover unmatched efficiency and versatility with the MRCOOL DIY-MULTI4-36HP230C, a revolutionary solution for multi-zone heating and cooling. Designed to deliver precise comfort, this system supports up to four zones and achieves an impressive SEER efficiency rating of up to 21.5 when paired with compatible MRCOOL air handlers. Even in extreme temperatures as low as -5°F, this heat pump ensures consistent performance, making it an ideal choice for year-round climate control.
Engineered for durability, the Gold Fin® condenser coating offers superior corrosion resistance, making it especially suited for coastal or high-humidity areas. Backed by MRCOOL’s commitment to quality, this system includes an optional limited lifetime compressor warranty for long-term peace of mind.
The DIY-MULTI4-36HP230C empowers homeowners to install their own multi-zone HVAC system without professional help. Equipped with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, pre-filled with eco-friendly R-410A refrigerant, installation requires no vacuuming or specialized tools—just standard wrenches. This system is a game-changer for DIY enthusiasts, saving time and installation costs.
Exceptional Energy Efficiency
Enjoy up to 21.5 SEER, reducing energy bills while delivering unparalleled comfort.
Corrosion-Resistant Design
The Gold Fin® coating protects the condenser in harsh environments, ensuring long-lasting performance.
Energy-Saving DC Inverter Technology
Boosts efficiency and minimizes power consumption for sustainable operation.
Environmentally Friendly Refrigerant
Uses R-410A refrigerant, which is more eco-conscious and efficient.
Comprehensive Warranty Coverage
Includes a 7-year compressor warranty and 5-year parts warranty, with the option to register for a limited lifetime compressor warranty for added assurance.
The 4th Generation MRCOOL DIY 36K BTU 4-Zone Ductless Heat Pump sets the standard for innovative, user-friendly HVAC technology. Whether you're upgrading your home’s climate control or looking for a cost-effective multi-zone solution, this system delivers superior performance, eco-conscious design, and homeowner-focused ease of installation.
Transform your home’s comfort today with MRCOOL—where innovation meets convenience.
| Product Dimensions | 37.24"W x 16.14"D x 31.89"H |
| Product Weight | 170.42 lbs |
| SEER2 | 21.5 |
| EER2 | 10.5 |
| HSPF2 | 8.8 |
| SEER | 21.5 |
| EER | 10.5 |
| HSPF | hspf4/hspf5 : 11/8.5 |
| CFM | 2147.06 |
| Cooling Capacity | 36,000 BTU |
| Heating Capacity | 36,000 BTU |
| Voltage |
Requires a minimum of 208V-230V/60HZ/27-45A (please check your home meets this electrical requirement prior to purchase) |
| Phase | 1 |
| Cycle | 60 Hz |
| Max Fuse Breaker |
45 A |
| Min Circuit Ampacity | 27 A |
| Color | White |
| Zone Capacity | Up to 4 |
| Refrigerant Type | R-410A |
| Refrigerant Volume | 134.04 oz |
| Decibel Rating | 65 dBA |
| Inverter | Yes |
| Min Ambient Cool | 5°F ~ 122°F |
| Min Ambient Heat | -13°F ~ 75.2°F |
| Max Lineset Length | 221.5 ft TOTAL |
| Liquid Line Size | 1/4in |
| Suction Line Size | 3/8in+1/2in |
| Compressor Motor Type | Rotary |
| Condenser Fan Motor RPM | 1000/900/750 |
| Wifi Compatibility | Yes |
| App Compatibility | Yes |
| Compatible with | IOS Android |
| Warranty | 5-year Parts/7-year Compressor Registered Warranty - Limited Lifetime Warranty |
Running line sets and drain tubes in an interior wall is harder than just going outside directly and I recommend doing it with unfinished walls on the back as I had to cut out sheetrock, and then you need 6 inch studs to cut out a path for the lines, power, and drain tube which needs to run downhill until you reach the exterior wall. Given that, it went well and I was able to install 2 heads and wire everything up and get it working in a couple days. The one issue I had was connecting the power as the terminals are very small and if you run a 8 gauge wire it will never fit, and even 10 gauge is near impossible. That should be re-engineered to make for easier connections. The terminals are fine for the head wires, but I don’t know why they were covered with a soft plastic cover which i had to cut off to connect. Other than that, it saved me a lot of money and they are working well. I will connect my third head unit later in a work room that I’m not using much and is passively heated. I gave a 5 star but because of the issues above I would have preferred 4.5 stars. Dealing with MRCOOL DIY Direct was easy and they were helpful.
