System Highlights
- Uniform Small-Room Zoning: Four matched 6K wall mount air handlers, each covering up to 200 sq. ft.
- Expansion Headroom: The 36K condenser supports up to five zones, leaving one port open for a future handler.
- True DIY Installation: Patented pre-charged Quick Connect® line sets eliminate vacuuming, charging, and professional trade labor. Every line set in this kit includes the DIYPro® cable.
- Smart Control: Wireless remotes, the SmartHVAC app for iOS and Android, plus Amazon Alexa and Google Assistant support out of the box.
What's Included
- 1 × DIY-MULTI5-36HP230D-O — 36K BTU Multi-Zone Condenser, 230V (5-zone capable)
- 4 × DIY-06-HP-WMAH-230D25-O — 6K BTU Wall Mount Air Handler, 230V
- 4 × Pre-charged 25 ft 1/4" × 3/8" Quick Connect® line sets with DIYPro® cable
- Wireless remotes, mounting hardware, and installation documentation
Condenser Specifications — DIY-MULTI5-36HP230D-O
| SEER2 / EER2 | 23 / 12 |
|---|---|
| HSPF2-4 / HSPF2-5 | 9.9 / 7.5 |
| Cooling / Heating Capacity | 34,000 BTU / 36,000 BTU |
| Tonnage | 3.0 |
| Zone Capacity | 5 (4 used in this kit) |
| Electrical | 208–230V, 1 Phase, 60 Hz |
| Max Fuse Breaker / MCA | 35A / 30.5A |
| Refrigerant | R-454B, 104.75 oz (pre-charged) |
| Compressor / Inverter | Rotary / DC |
| Sound Level | 64 dBA |
| Max Total Line Set Length | 221.4 ft |
| Net Dimensions (D×H×W) | 16.14" × 31.89" × 37.24" |
| Net Weight | 169.24 lbs |
Zone Configuration — DIY-06-HP-WMAH-230D25-O (×4)
| Capacity / Coverage | 6,000 BTU — up to 200 sq. ft. per zone |
|---|---|
| Line Set Size | 1/4" Liquid • 3/8" Suction |
Engineering & Warranty
- Gold Fin® Corrosion Protection against humidity and coastal salt exposure.
- DC Inverter Drive scales output to match thermal load.
- R-454B Refrigerant — more efficient and eco-friendly than R-410A.
- Certifications: Intertek listed 5031495, UL Listed, ETL Listed, ENERGY STAR® certified, AHRI certified.
- Warranty: 5-year parts and 7-year compressor coverage, eligible for the MRCOOL® Care Program.
Proposition 65 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.
Download the MRCOOL Brochure
Get the full official MRCOOL DIY 5th Generation Brochure PDF — specs, lineup, and details.



