System Highlights
- Near-Matched Zoning: A 9K handler for smaller rooms, plus two matched 12K handlers for larger, similarly sized spaces.
- Uniform Line Set Sizing: All three zones use the same 1/4" × 3/8" line set — no risk of mismatching fittings during install.
- Wall-Mount Simplicity: No ceiling joist work or cassette framing — handlers mount directly to an interior wall.
- Right-Sized Condenser: The 27K unit matches the connected load closely, keeping the system compact and efficient.
- 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.
- Follow Me® Technology: The remote senses ambient temperature at its location and adjusts airflow for more accurate comfort.
What's Included
- 1 × DIY-MULTI4-27HP230D-O — 27K BTU Multi-Zone Condenser, 230V (4-zone capable)
- 1 × DIY-09-HP-WMAH-230D25-O — 9K BTU Wall Mount Air Handler, 230V
- 2 × DIY-12-HP-WMAH-230D25-O — 12K BTU Wall Mount Air Handler, 230V
- 3 × Pre-charged 1/4" × 3/8" Quick Connect® line sets with DIYPro® cable — lengths selected above
- Wireless remotes, mounting hardware, and installation documentation
Condenser Specifications — DIY-MULTI4-27HP230D-O
| SEER2 / EER2 | 23 / 12 |
|---|---|
| HSPF2-4 / HSPF2-5 | 9.5 / 7.0 |
| Cooling / Heating Capacity | 26,000 BTU / 26,000 BTU |
| Tonnage | 2.25 |
| Zone Capacity | 4 (3 used in this kit) |
| Electrical | 208–230V, 1 Phase, 60 Hz |
| Max Fuse Breaker / MCA | 25A / 23A |
| Refrigerant | R-454B, 84.66 oz (pre-charged) |
| Compressor / Inverter | Rotary / DC |
| Sound Level | 61 dBA |
| Max Total Line Set Length | 221.4 ft |
| Net Dimensions (D×H×W) | 16.14" × 31.89" × 37.24" |
| Net Weight | 140.21 lbs |
Zone Configuration
| Zone | Model | Coverage |
|---|---|---|
| Zone 1 | DIY-09-HP-WMAH-230D25-O | Up to 400 sq. ft. |
| Zone 2 | DIY-12-HP-WMAH-230D25-O | Up to 550 sq. ft. |
| Zone 3 | DIY-12-HP-WMAH-230D25-O | Up to 550 sq. ft. |
All zones use 1/4" liquid and 3/8" suction lines. Each handler includes a wireless remote with Follow Me® sensing, reusable filtration, and Auto Cool and Fan Only modes. Voltage 208/230, Phase 1, Cycle 60.
Line Set Options
| Length | Model (all zones) |
|---|---|
| 25 ft | DIY25-1438C-O |
| 35 ft | DIY35-1438C-O |
| 50 ft | DIY50-1438C-O |
All line sets ship pre-charged with R-454B and include the DIYPro® cable.
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.



