Mitsubishi SLZ-AF18NL 18,000 BTU Four Way Ceiling Cassette Indoor Unit (Unit Only) - R454B - SLZAF18NLU1
Transform your space with the Mitsubishi SLZ‑AF18NL, a high-capacity, ceiling cassette unit ideal for efficient heating and cooling in medium to large rooms.
Powerful & Efficient Performance
Provides 17,700 cooling (20,000 BTU heating) using INVERTER-driven technology and eco-friendly R‑454B refrigerant for impressive year-round efficiency.
Flush Ceiling‑Recessed Installation
Fits seamlessly into a standard 2’×2’ suspended ceiling grid with a low-profile design—perfect for offices, retail spaces, or living areas.
360° Multi‑Vane Airflow
Equipped with four-directional airflow and customizable vane control providing 72 airflow patterns for uniform air distribution. Optional 3D i‑see Sensor available.
Quiet, Reliable Operation
Operates as low as 32 dB(A) with a built-in condensate lift (up to 33") and smart drain pan design for dependable, quiet performance.
Flexible Compatibility
Pairs easily with Mitsubishi outdoor units like SUZ‑AA18NL/SUZ‑AA18NLHZ and supports wired/wireless remotes, Comfort App, and third-party interfaces.
Trusted Mitsubishi Quality
Includes a 10-year warranty when installed by a licensed contractor and registered promptly, ensuring lasting peace of mind.
What Our Experts Think
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18,000 BTU four-way ceiling cassette ideal for medium to large single-zone spaces.
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Efficient design ensures reliable year-round heating and cooling.
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Ceiling cassette allows discreet, flush-mounted installation for minimal visual impact.
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Quiet operation maintains comfort without disturbance.
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Uses eco-friendly R454B refrigerant for energy-efficient, environmentally responsible performance.
Q&A
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Q: What size area is suitable for this unit?
A: Ideal for medium to large single-zone spaces.
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Q: Can it provide both heating and cooling?
A: Yes, designed for efficient year-round climate control.
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Q: Where can it be installed?
A: Ceiling-mounted cassette for a low-profile, space-saving setup.
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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 checks.
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Keep outdoor unit (if paired) free of debris for optimal performance.
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Inspect mounting periodically for stability.
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Ensure condensate lines remain clear to prevent water damage.
