System Highlights
- Purpose-Built 3-Zone Condenser: No wasted capacity — this 18K unit is sized specifically for three zones, not a larger multi-zone platform scaled down.
- Compact Zoning: Two 6K handlers at 200 sq. ft. each, plus a 9K unit covering up to 400 sq. ft.
- 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.
- 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-MULTI3-18HP230D-O — 18K BTU Multi-Zone Condenser, 230V (3-zone capable)
- 2 × DIY-06-HP-WMAH-230D25-O — 6K BTU Wall Mount Air Handler, 230V
- 1 × DIY-09-HP-WMAH-230D25-O — 9K 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-MULTI3-18HP230D-O
| SEER2 / EER2 | 23.9 / 13 |
|---|---|
| HSPF2-4 / HSPF2-5 | 10.0 / 7.8 |
| Cooling / Heating Capacity | 18,000 BTU / 18,000 BTU |
| Tonnage | 1.5 |
| Zone Capacity | 3 (all used in this kit) |
| Electrical | 208–230V, 1 Phase, 60 Hz |
| Max Fuse Breaker / MCA | 20A / 16A |
| Refrigerant | R-454B, 61.73 oz (pre-charged) |
| Compressor / Inverter | Rotary / DC |
| Sound Level | 60 dBA |
| Max Total Line Set Length | 172.2 ft |
| Net Dimensions (D×H×W) | 13.46" × 26.5" × 35.04" |
| Net Weight | 101.63 lbs |
Zone Configuration
| Zone | Model | Coverage |
|---|---|---|
| Zone 1 | DIY-06-HP-WMAH-230D25-O | Up to 200 sq. ft. |
| Zone 2 | DIY-06-HP-WMAH-230D25-O | Up to 200 sq. ft. |
| Zone 3 | DIY-09-HP-WMAH-230D25-O | Up to 400 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.
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.
