Mitsubishi SLZ-AF18NL 18,000 BTU Four-Way Ceiling Cassette Indoor Unit (w/ Standard Grille) - R454B - SLZAF18NL/SLP18FAU
Experience robust, energy-efficient comfort with the Mitsubishi SLZ‑AF18NL ceiling cassette paired with the sleek SLP‑18FAU grille panel—designed for quiet, flush-mounted installation in larger residential and light commercial spaces.
High-Capacity Heating & Cooling
Provides 17,700 cooling and 19,700 heating using advanced INVERTER technology and eco-friendly R‑454B refrigerant for reliable, year-round performance.
Modern Flush-Mounted Grille Panel
The SLP‑18FAU grille fits perfectly into a 2’ × 2’ ceiling grid, delivering a clean, low-profile look that integrates seamlessly with any décor.
360° Four-Way Airflow with Adjustable Vanes
Ensures even air distribution and customizable comfort with independently adjustable vanes, keeping every corner of the room comfortable.
Quiet Operation & Efficient Drainage
Operates quietly at 25–31 dB(A) with a built-in 33" condensate lift for clean, efficient drainage and uninterrupted comfort.
Smart Controls & System Compatibility
Compatible with Mitsubishi outdoor units like SUZ‑AA18NL and supports wired/wireless controllers and the Mitsubishi Comfort App for seamless smart home integration.
Reliable Mitsubishi Warranty
Backed by a 10-year limited warranty when installed by a licensed contractor and registered within 90 days—providing lasting peace of mind.
What Our Experts Think
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18,000 BTU output delivers efficient heating and cooling for medium to large rooms.
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Four-way ceiling cassette ensures even air distribution.
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Quiet, flush-mounted design ideal for residential and light commercial spaces.
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Compatible with standard SLP‑18FAU grille for a sleek appearance.
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Uses eco-friendly R‑454B refrigerant for sustainable performance.
Q&A
Q: What spaces is this unit suitable for?
A: Perfect for larger residential areas and light commercial spaces.
Q: Does it provide even airflow?
A: Yes, four-way ceiling cassette ensures uniform air distribution.
Q: How quiet is the system?
A: Designed for minimal noise, ideal for offices, living areas, and conference rooms.
Q: What refrigerant does it use?
A: Low-GWP, eco-friendly R‑454B.
Maintenance Tips
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Clean or replace filters monthly to maintain airflow.
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Inspect ceiling unit and grille for dust or debris.
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Keep outdoor condenser free from obstructions.
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Schedule annual professional servicing to maintain inverter efficiency.
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Ensure proper clearance around the indoor unit for optimal performance.
