MRCOOL
MRCOOL 27k DIY 5th Generation 4 Zone Multi-Zone Mini-Split Condenser 230v
DIY-MULTI4-27HP230D-O
26,000 BTU · up to 4 zones · 23 SEER2 · 208/230V · R-454B
Part of DIY 5th Gen – Multi-Zone Condensers
- Cooling capacity
- 26,000 BTU2.25 tons
- Room size
- Up to 1,125 sq ft
- Zones
- Up to 4
- Efficiency
- 23 SEER29.5 HSPF2
- Power
- 208/230V25A breaker
- Refrigerant
- R-454B25 ft line set
$2,100.00 eachList $4,835.00
Not sure about the size? Use the BTU sizing calculator, or call us and we'll size it with you. This is a DIY system: the pre-charged line set connects without a vacuum pump or gauges.
Build a multi-zone system with this condenser →
Distributor pricing and stock: call 678-467-5515 or email sales@discountkings.net.
About this product
Experience unmatched comfort and control with the new 5th Generation MRCOOL® DIY® 27k BTU Multi-Zone Ductless Mini-Split Condenser. As the name suggests, this unit is truly DIY—no HVAC professional required. With high efficiency ratings of SEER2 23 and HSPF2-4 9.5, this system helps you save on both installation and long-term energy costs. Designed to support up to four air handlers, this condenser can heat and cool multiple rooms—up to 1,200 square feet in total. It's the perfect solution for homeowners looking to bring comfort to several zones without running ductwork. This generation features our patented Quick Connect® line sets, pre-charged with R-454B refrigerant. R-454B is a next-generation, eco-friendly option that enhances efficiency and sustainability. These line sets simplify installation by connecting directly to the condenser and air handlers—no special tools or training needed. Once installed, the smart capabilities of this system truly shine. Use the SmartHVAC app to monitor and adjust your system from anywhere, or integrate it with Amazon Alexa or Google Home to control your comfort with voice commands. Set custom schedules, fine-tune temperatures, and track energy usage with ease. For added peace of mind, every unit is backed by one of the industry's strongest warranties: 5 years on parts, 7 years on the compressor, and eligibility for the MRCOOL® Care Program. With smart technology, eco-conscious design, and true DIY installation, the MRCOOL® DIY® 27k BTU Multi-Zone system is built to meet your comfort on your terms.
- Intertek listed 5031495
- Easy DIY installation
- Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
- Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
- The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.
Documents & manuals
Specifications
| Type | Condenser (outdoor unit) — heat pump (heats & cools) |
|---|---|
| Series | DIY 5th Gen |
| Cooling capacity | 26,000 BTU |
| Heating capacity | 26,000 BTU |
| Nominal size | 2.25 tons |
| Zones | Up to 4 |
| Coverage | Up to 1,125 sqft. |
| SEER2 | 23 |
| EER2 | 12 |
| HSPF2 | 9.5 |
| Sound level | 61 dBA |
| Voltage | 208/230V |
|---|---|
| Phase | 1-phase |
| Min. circuit ampacity (MCA) | 23 A |
| Max. breaker (MOP) | 25 A |
| Inverter compressor | Yes |
| Wi-Fi / app control | Yes |
| Refrigerant | R-454B |
|---|---|
| Factory charge | 84.66 oz |
| Line set | 25 ft included |
| Max. line length | 221.4 ft |
| Liquid line | 1/4" |
| Suction line | 3/8" |
| Installation | DIY — pre-charged quick-connect line set, no vacuum pump needed |
| Dimensions (in) | 37.24 W × 16.14 D × 31.89 H |
|---|---|
| Weight | 140.21 lb |
| Shipping weight | 151.02 lb |
| Color | White |
| ENERGY STAR | Yes |
|---|---|
| AHRI certified | Yes |
| Safety listing | UL, ETL |
| Compressor warranty | 7 years |
| Parts warranty | 5 years |
| UPC | 840255587457 |

