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MRCOOL® DIY 18K BTU Multi-Zone Condenser | 230V Outdoor Unit
Product Overview
The MRCOOL DIY 18K BTU Multi-Zone Condenser is a powerful 230V outdoor unit that can heat and cool up to three rooms (with a combined area of 750 sq. ft.). Engineered for true DIY installation, this 5th Generation system uses pre-charged QuickConnect® linesets (sold separately) for a vacuum-free, tool-simple setup—no HVAC professional needed.
Key Features & Benefits
✅ Three-Zone Flexibility – Connect up to three indoor air handlers (sold separately) to independently control the temperature in three different rooms.
✅ High-Efficiency Operation – Rated at 23.9 SEER2 for cooling and 10 HSPF2 for heating, delivering significant energy savings year-round.
✅ DIY QuickConnect® System – Uses pre-charged linesets with R-454B refrigerant (sold separately). No vacuum pump or refrigerant handling required.
✅ Smart Home Integration – Compatible with the Smart HVAC app for scheduling, remote control, and voice commands via Amazon Alexa and Google Home.
✅ All-in-One Control – Manage temperature, modes, and schedules for all three zones from a single app or with your voice.
✅ Robust Warranty Protection – Includes a 7-year compressor warranty, 5-year parts warranty, and a Limited Lifetime Replacement warranty with MRCOOL Care Program enrollment.
✅ 230V Power – Provides efficient, high-capacity performance for multi-room applications.
Technical Specifications
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Model Type: Multi-Zone Outdoor Condenser | 5th Generation
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Total System Capacity: 18,000 BTU (supports up to 3 zones)
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Voltage: 230V
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Max Combined Coverage: Up to 750 sq. ft.
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Cooling Efficiency: 23.9 SEER2
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Heating Efficiency: 10 HSPF2
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Refrigerant: R-454B (used in compatible pre-charged linesets)
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Compatible Indoor Units: Up to 3 MRCOOL DIY Air Handlers (sold separately)
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Control: Smart HVAC App, Voice Control (Alexa/Google)
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Warranty: 7-Year Compressor, 5-Year Parts, Limited Lifetime with enrollment
What’s Included
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MRCOOL DIY 18K BTU Multi-Zone Outdoor Condenser (230V)
Recommended for Complete System (Sold Separately)
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MRCOOL DIY Air Handlers (up to 3 units, e.g., 6K, 9K, or 12K BTU each)
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MRCOOL DIY QuickConnect® Pre-Charged Line Sets (one per indoor unit)
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DIYPro® Cables (one per indoor unit, often included with air handlers)
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Condenser pad or wall-mount bracket
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Line hide cover kits (recommended)
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Electrical disconnect box (per local code)
Why Choose This Multi-Zone Condenser?
This condenser is the heart of a customizable, multi-room DIY mini-split system. It allows you to create up to three independent climate zones—perfect for bedrooms, home offices, or living areas—all controlled from one efficient outdoor unit. With high SEER2/HSPF2 ratings, smart app control, and industry-leading warranties, it’s designed for homeowners who want professional comfort with DIY simplicity and savings.
Perfect For
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Cooling and heating 3 bedrooms
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Home office + living room + bedroom setups
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Multi-room rentals or apartment units
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Basement zones or floor-level additions
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Garage + workshop + studio configurations
Ready to heat and cool multiple rooms with one system?
This MRCOOL DIY 18K BTU Multi-Zone Condenser makes whole-home comfort achievable and affordable.
🛒 Add to Cart Today – Build Your Multi-Zone System This Weekend!
Need help choosing indoor units? Explore our full range of MRCOOL DIY Air Handlers in 6K, 9K, 12K, 18K, 24K and 36K BTU sizes.