Mitsubishi SLZ-AF18NL 18,000 BTU Four Way Ceiling Cassette Indoor Unit (w/ 3D Sensor Grille) - R454B - SLZAF18NL/SLP18FAEU
Enjoy powerful, energy-efficient comfort with the Mitsubishi SLZ‑AF18NL ceiling cassette paired with the sleek SLP‑18FAEU grille panel—designed for quiet, flush-mounted installation in larger residential and commercial spaces.
High-Performance Heating & Cooling
Delivers 17,700 cooling and 19,700 heating with advanced INVERTER technology and eco-friendly R‑454B refrigerant for year-round, efficient performance.
Sleek, Flush-Mounted Grille Panel
The SLP‑18FAEU grille fits seamlessly into a 2’ × 2’ ceiling grid, providing a modern, low-profile finish that blends with any décor.
360° Four-Way Airflow with Adjustable Vanes
Ensures even air distribution with independently adjustable vanes, allowing for customized comfort throughout the space.
Quiet Operation & Efficient Drainage
Operates quietly (25–31 dB(A)) with a built-in 33" condensate lift for clean drainage and uninterrupted comfort.
Smart Controls & System Integration
Compatible with Mitsubishi outdoor units like SUZ‑AA18NL and supports wired/wireless controllers plus the Mitsubishi Comfort App for intuitive smart home control.
Trusted Mitsubishi Warranty
Backed by a 10-year limited warranty when installed by a licensed contractor and registered within 90 days—providing lasting reliability and peace of mind.
What Our Experts Think
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18,000 BTU four-way ceiling cassette ideal for single-zone spaces in large residential or commercial areas.
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Sleek, flush-mounted design with 3D Sensor grille ensures discreet, unobtrusive installation.
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Energy-efficient system provides reliable year-round comfort.
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Quiet operation suitable for offices, classrooms, or living spaces.
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Uses low-GWP R454B refrigerant for environmentally responsible performance.
Q&A
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Q: What room size is suitable for this unit?
A: Ideal for medium to large spaces requiring up to 18,000 BTU.
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Q: Can it operate quietly?
A: Yes, designed for whisper-quiet operation in residential and commercial settings.
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Q: Where can it be installed?
A: Ceiling-mounted, flush with 3D Sensor grille for discreet appearance.
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Q: What refrigerant does it use?
A: R454B, a low-GWP, environmentally friendly refrigerant.
Maintenance Tips
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Clean or replace filters monthly to maintain airflow and efficiency.
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Schedule annual professional maintenance for refrigerant and system performance.
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Keep ceiling unit vents clear of obstructions.
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Inspect mounting and connections periodically for stability.
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Ensure condensate drains remain unobstructed to prevent water damage.
