System Highlights
- Exact-Capacity Match: The 18K condenser is sized specifically for three 6K zones — no oversized compressor cycling on partial load.
- Balanced Symmetrical Zoning: Three matched 6K cassettes, each covering up to 200 sq. ft., for even comfort across three similarly sized rooms.
- Flush Ceiling Integration: Low-profile cassettes fit between 16" joists for a clean architectural finish — no ductwork, no wall penetrations.
- 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, so no electrical conduit is required.
- Elevation Filter Access: The panel lowers on demand so filters can be cleaned without dismantling the unit.
- Smart Control: Wireless remotes, the SmartHVAC app for iOS and Android, plus Amazon Alexa and Google Assistant support out of the box.
Built for three matched rooms with no expansion planned — a condenser sized to the job rather than to future zones.
What’s Included
- 1 × DIY-MULTI3-18HP230D-O — 18K BTU Multi-Zone Condenser, 230V (3-zone capable)
- 3 × DIYCASSETTE06HP-230D25-O — 6K BTU OuttaSight® One-Way Ceiling Cassette, 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 / 7.8 |
| Cooling / Heating Capacity | 18,000 BTU / 18,000 BTU |
| Tonnage | 1.5 |
| Zone Capacity | 3 (3 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 — DIYCASSETTE06HP-230D25-O (×3)
| Capacity / Coverage | 6,000 BTU — up to 200 sq. ft. per zone |
|---|---|
| Air Flow Direction | 1-Way |
| CFM | 341 / 294 / 259 / 235 / 235 |
| Sound Level | 35.5 dBA (23.5 low / 46.5 high) |
| Blower Motor RPM | 1024 / 944 / 784 |
| Rated Load | 0.8 |
| Line Set Sizes | 1/4" Liquid • 3/8" Suction |
| Electrical | 208–230V, 1 Phase, 60 Hz — 15A breaker, 3A MCA |
| Filter | Reusable, Elevation-function access |
| Net Dimensions (D×H×W) | 13.19" × 8.98" × 50.31" |
| Net Weight | 45 lbs each |
Line Set Options
All three zones use the 1/4" × 3/8" family. Every option is pre-charged with R-454B and includes the DIYPro® cable.
| Length | Model |
|---|---|
| 25 ft | DIY25-1438C-O |
| 35 ft | DIY35-1438C-O |
| 50 ft | DIY50-1438C-O |
Engineering & Warranty
- Gold Fin® Corrosion Protection: Protective coating shields the condenser coil against humidity and coastal salt exposure.
- DC Inverter Drive: The variable-speed rotary compressor scales output to match thermal load, avoiding hard current-draw spikes.
- R-454B Refrigerant: Next-generation refrigerant with improved efficiency and lower environmental impact than R-410A.
- Advanced Filtration: Reusable filters with Elevation-function access improve indoor air quality without complicating maintenance.
- Certifications: Intertek listed 5031495, UL Listed, ETL Listed, ENERGY STAR® certified, AHRI certified.
- Warranty: 5-year parts and 7-year compressor coverage, with eligibility for the MRCOOL® Care Program.
Shipping restrictions: Ceiling cassettes cannot be shipped to Guam, Puerto Rico, or the U.S. Virgin Islands.
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.
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.
