Matthew has been working with tools his entire life. Rebuilding his first engine at 15, he's spent years in the diesel mechanic industry, repaired complex conveyor systems, and mastered hands-on troubleshooting.
Having served as the sole Telebelt mechanic in the Midwest for three years, Matthew possesses deep, practical knowledge of heavy equipment and machinery.
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*Please Note: This timeline is an estimate. Certain products may require an additional 1 week for manufacturing. Please speak with your sales rep, Matthew, for official details and confirmation before placing your order.
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MRCOOL® DIY® 5th Gen 3-Zone Ceiling Cassette Mini Split (6K+9K+9K)
The MRCOOL® DIY® 5th Generation 24,000 BTU 3-Zone Ceiling Cassette Mini Split delivers flush-mount, architectural comfort by pairing a 5-zone capable 36K BTU condenser with three OuttaSight™ 1-way ceiling cassettes (6K, 9K, and 9K) for fast, vacuum-free installation and balanced climate control across one small and two medium residential spaces.
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.
Balanced Mixed-Capacity Zoning: Tailored output combining one 6,000 BTU cassette for a smaller room up to 150 sq. ft. alongside two versatile 9,000 BTU cassettes to manage medium-sized rooms up to 350 sq. ft. each.
Expandable 36K Condenser Chassis: Deploys out of the box as a versatile tri-zone system, leaving ample reserve headroom to hook up two additional handlers 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 who demand architectural, low-profile ceiling cassette integration across three mixed-capacity zones, offering maximum long-term expansion flexibility from a single centralized 36K condenser framework.
Technical Specifications
Total Connected Capacity
24,000 BTU (6K + 9K + 9K Ceiling Cassettes)
Condenser Model
DIY-MULTI5-36HP230D-O (5-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: 9K Cassette
Zone 3: 9K Cassette
Cooling / Heating Output
6,000 BTU
9,000 BTU
9,000 BTU
Coverage Area
100 to 150 sq. ft.
151 to 350 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.
Key Information
Order Cutoff Time: 2:00 PM EST
Order Handling Time: 1–3 business days (Monday–Friday)
Transit Time: 1–7 business days (Monday–Friday)
Total Estimated Delivery Time: 3–11 business days (Monday–Friday)
Shipping Availability: Free Shipping On Most Items In The Contiguous United States only
Run the exact engineering math you need to validate CFM, ROI, and OSHA compliance—before you spend a dime.
LAUNCH FREE TOOLSUITE
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Engineering Toolsuite
Industrial calculations for facility planning and financial justification.
1. Facility & Utility Sizing
Airflow, thermal load, and suction requirements.
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2. Safety & OSHA Compliance
Noise limits, combustible dust, and shop layout safety.
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3. CAPEX & Strategic Analysis
Section 179, Labor ROI, and downtime revenue loss.
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Facility & Utility Sizing
Airflow Sizer (CFM)
Calculate ventilation for cooling and air quality.
Dehumidification (PPD)
Determine moisture removal for curing or climate control.
Dust Collection (CFM)
Required suction for material extraction.
Machine Thermal Load
Size cooling based on machine BTU output.
Safety & OSHA Compliance
OSHA Noise Exposure
Calculate daily noise dose and legal limits.
Combustible Velocity
Required FPM to move materials safely through ducting.
Heat Stress Index
Workplace danger zones based on heat and humidity.
Safe Machine Spacing
Physical footprint including material handling clearance.
CAPEX & Strategic Analysis
Section 179 Savings
Immediate tax deduction for equipment purchase.
Cost of Inaction
Revenue bleed from legacy equipment downtime.
Labor ROI (Payback)
Months until machine labor savings covers the cost.
Material Waste Savings
Monthly profit increase from scrap reduction.
Airflow Sizer
Recommended Airflow:
0 CFM
Dehumidification
Moisture Removal:
0 PPD
Dust Collection
Min. Suction Needed:
0 CFM
Machine Thermal Load
Heat Output:
0 BTU/hr
Cooling: 0 Tons
OSHA Noise Dose
Daily OSHA Dose:
0%
Duct Velocity
Required Volume:
0 CFM
Heat Stress Index
Feels Like:
0 °F
Safe Footprint
Safe Shop Area:
0 Sq Ft
Section 179 Savings
Tax Savings:
$0
Net Cost: $0
Cost of Inaction
Monthly Loss:
$0
Labor ROI
Payback Period:
0 Months
Waste Reduction
Monthly Savings:
$0
Request Expert Consultation
Our tool specialists are ready to help you find the perfect solution for your specific application.
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Just what I needed
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Mark D. | Machine Shop ForemanField Verified
Heavy Duty & Precise
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