MRCOOL
MRCOOL® 27k DIY 5th Generation 4 Zone Multi-Zone Mini-Split Condenser 230v
2.25 Ton | SEER2 23 | R-454B | 208/230V
- 26000 BTU cooling capacity
- Up to 23 SEER2 rated efficiency
- Rotary compressor
- Uses R-454B refrigerant
Key Specifications
Product Overview
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.
Features
- 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.
Additional specifications
| UPC | 840255587457 |
|---|---|
| Series | DIY 5th gen Multi-Zone Mini-splits |
| Refrigerant charge (oz) | 84.66 |
| Heating capacity (BTU/h) | 26000 |
| HSPF2 (region V) | 7 |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 23 |
| Max fuse / breaker (A) | 25 |
| Inverter | DC |
| Line set included (ft) | 25 |
| Max line set length (ft) | 221.4 |
| Aux heater included | No |
| Aux heater available | No |
| Wi-Fi capable | Yes |
| AHRI certified | Yes |
| ENERGY STAR certified | Yes |
| UL listed | Yes |
| ETL listed | Yes |
| Parts warranty (years) | 5 |
| Compressor warranty (yrs) | 7 |
| Shipping W x H x D (in) | 42.91 x 34.84 x 19.69 |
| Shipping weight (lbs) | 151.02 |
Documents
- Installation manual (PDF)
- Service manual (PDF)
- Remote manual (PDF)
- Brochure (PDF)
- Warranty (PDF)
- AHRI certificate (PDF)
- EnergyGuide label (PDF)
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
Technical Specifications
Performance
| System Type | Mini Split Condenser |
|---|---|
| Capacity | 26000 BTU |
| Tonnage | 2.25 Ton |
| Compressor / Stages | Rotary |
| SEER2 | 23 |
| EER2 | 12 |
| HSPF2 | 9.5 |
| Sound Level | 61 dBA |
Electrical & Fuel
| Voltage | 208/230V |
|---|---|
| Phase | Single Phase |
| Refrigerant | R-454B |
| Connection Size | Liquid 1/4" / Suction 3/8" |
Physical & Certifications
| Dimensions (W x H x D) | 37.24 x 31.89 x 16.14 |
|---|---|
| Weight | 140.21 lb |
| Color / Finish | White |
Shipping & Delivery
Installation video
Published by MRCOOL. Watch the full walkthrough before you start, and follow the installation manual for this model — the video is a guide, not a substitute for it.
Manufacturer Warranty
Covered by MRCOOL's limited warranty. Warranty terms are set by MRCOOL and differ by product line — whether registration is required, and whether the installation has to be performed by a state-licensed HVAC contractor, is not the same across the range. In every case coverage depends on the unit being installed according to MRCOOL's instructions and all applicable codes and permits. MRCOOL's warranty document for this model is the controlling source; ask us and we'll send you the one that applies.
Professional Installation Recommended
Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.
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