System Highlights
- OuttaSight™ Architectural Design: Flush-mount ceiling cassette profile sits discreetly between standard ceiling joists, preserving wall space and interior aesthetics while delivering high-performance climate control.
- 1-Way Directional Airflow: Precision louver control directs conditioned air across the room for even thermal distribution without direct drafts, operating at a sleek, low profile of 50.31" W x 13.19" D.
- Compact Mixed-Capacity Zoning: Tailored output combining two 6,000 BTU cassettes for smaller rooms up to 150 sq. ft. alongside one versatile 9,000 BTU cassette to manage spaces up to 350 sq. ft.
- Expandable 27K Condenser Chassis: Deploys out of the box as a compact tri-zone system, leaving ample reserve headroom to hook up one additional handler as your property scales.
- True DIY Installation Workflow: Patented pre-charged Quick Connect® lines completely eliminate conventional line evacuation, vacuuming, and professional trade labor requirements.
Engineered for homeowners and business owners who demand architectural, low-profile ceiling cassette integration across smaller zone footprints, offering maximum long-term expansion flexibility from a single centralized 27K condenser framework.
Technical Specifications
| Total Connected Capacity | 21,000 BTU (6K + 6K + 9K Ceiling Cassettes) |
|---|---|
| Condenser Model | DIY-MULTI4-27HP230D-O (4-Zone Capable) |
| SEER2 / EER2 Rating | SEER2 21.8 | EER2 12.0 |
| Heating Efficiency (HSPF2) | HSPF2-4: 10.0 | HSPF2-5: 7.8 |
| Electrical Interface Requirements | 208–230V, 1 Phase, 60 Hz |
| Refrigerant Type | R-454B (Pre-Charged Eco-Friendly) |
| Industry Compliance Certifications | UL Listed, ETL Listed, ENERGY STAR, AHRI Certified |
Zone Configuration & Performance Metrics
| Specification / Feature | Zone 1: 6K Cassette | Zone 2: 6K Cassette | Zone 3: 9K Cassette |
|---|---|---|---|
| Cooling / Heating Output | 6,000 BTU | 6,000 BTU | 9,000 BTU |
| Coverage Area | 100 to 150 sq. ft. | 100 to 150 sq. ft. | 151 to 350 sq. ft. |
| Lineset Interconnect Size | 1/4" Liquid • 3/8" Suction | 1/4" Liquid • 3/8" Suction | 1/4" Liquid • 3/8" Suction |
| Lineset Length Options | 16 ft, 25 ft, 35 ft, or 50 ft | 16 ft, 25 ft, 35 ft, or 50 ft | 16 ft, 25 ft, 35 ft, or 50 ft |
| Unit Dimensions & Weight | 50.31"W x 13.19"D x 8.98"H (45 lbs) | 50.31"W x 13.19"D x 8.98"H (45 lbs) | 50.31"W x 13.19"D x 8.98"H (45 lbs) |
Advanced Engineering & Warranty
- Gold Fin® Corrosion Protection: Advanced clear-coat protective barrier shields the exterior condenser coil against extreme humidity and harsh coastal climates.
- DC Inverter Drive Architecture: The continuous variable-speed rotary inverter compressor scales its operating frequency down precisely to match ambient thermal loads, completely avoiding costly current draw spikes.
- Smart Ecosystem Control: Full out-of-the-box integration via Amazon Alexa, Google Assistant, and the dedicated SmartHVAC mobile app for remote multi-zone scheduling and mode adjustments.
- 7-Year Compressor Warranty: Commercial-grade structural factory backing ensuring the heart of your outdoor condenser system remains protected against manufacturing defects.
- 5-Year Parts Protection Framework: Comprehensive hardware replacement coverage across internal circuit boards and critical operational components.
Download the MRCOOL Brochure
Get the full official MRCOOL DIY 5th Generation Brochure PDF — specs, lineup, and details.
