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Mitsubishi SLZ-AF18NL 18,000 BTU Four Way Ceiling Cassette Indoor Unit (Unit Only) - R454B - SLZAF18NLU1

Mitsubishi SLZ-AF18NL 18,000 BTU Four Way Ceiling Cassette Indoor Unit (Unit Only) - R454B - SLZAF18NLU1

$1,183.99 USD
$1,578.00 USD $1,183.99 USD
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Descripción

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

  • Balanced Comfort in Medium‑Large Spaces: The Mitsubishi SLZ‑AF18NL 18,000 BTU Four‑Way Ceiling Cassette Indoor Unit (R‑454B) delivers efficient year‑round heating and cooling for rooms up to ~750 sq ft, making it a strong choice for larger living areas, offices, or light commercial spaces.

  • Four‑Way Airflow for Even Temperature Distribution: Instant comfort with 360° multi‑directional airflow and adjustable vanes that provide uniform air circulation throughout the room — ideal for eliminating hot or cold spots.

  • Quiet, Low‑Profile Installation: Designed to recess into a standard 2′×2′ ceiling grid, the unit offers a modern, uncluttered ceiling look and operates quietly — perfect for residential or work environments.

  • Built‑In Condensate Lift & Practical Drainage: Comes with a built‑in drain condensate lift mechanism (up to ~33″), simplifying installation and keeping moisture managed without external pumps.

  • Flexible Controls & Smart Integration: Compatible with wired and wireless remotes, Mitsubishi Comfort app control, and third‑party thermostats, enabling easy scheduling and remote operation.

  • Efficient & Eco‑Friendly Refrigerant: Uses low‑GWP R‑454B refrigerant paired with inverter technology for improved energy efficiency and reduced environmental impact.

  • Durable, Reliable Indoor Performance: Long‑life air filters and options like optional 3D i‑see Sensor help maintain comfort and efficiency by sensing occupancy and adjusting airflow and temperature accordingly.

  • Expert Verdict: A versatile ceiling cassette head unit that blends uniform four‑way airflow, quiet operation, and flexible control options, making it ideal for modern homes and commercial spaces where discreet comfort and performance matter.


Q&A

Q: What type of indoor unit is the SLZ‑AF18NL?
A: It’s an 18,000 BTU four‑way ceiling cassette indoor unit designed to mount flush in a ceiling grid and pair with Mitsubishi outdoor heat pump units (indoor unit only).

Q: What cooling and heating capacities does it deliver?
A: It delivers approximately 18,000 BTU/h cooling and up to ~20,000 BTU/h heating when matched with the proper outdoor unit.

Q: What refrigerant type is used?
A: This model uses R454B refrigerant, a more eco‑friendly, low‑GWP refrigerant used in modern Mitsubishi mini‑split systems.

Q: How does airflow distribution work?
A: It features four‑way adjustable airflow with customizable vanes that deliver balanced air distribution for uniform comfort throughout the room.

Q: What comfort and control features are included?
A: Multiple operating modes (cooling, heating, dry/dehumidification), auto vane control, “Powerful Mode” for rapid temperature adjustment, and optional 3D i‑see Sensor® for occupancy‑based airflow and energy optimization.

Q: What about condensate management?
A: The unit has a built‑in condensate drain lift capable of up to ~33 inches, simplifying drainage and reducing risk of overflow.

Q: How quiet is the unit?
A: It operates quietly with indoor sound levels starting around ~32 dB(A) to moderate levels depending on fan speed.


Maintenance Tips

  • Clean or Wash Air Filters Monthly: Remove and clean the long‑life air filter to maintain airflow, efficiency, and indoor air quality; reinstall fully dry.

  • Dust Ceiling Grille & Vents: Keep the cassette’s grille and 4‑way discharge areas free of dust and debris so airflow isn’t restricted.

  • Inspect Condensate Drain: Ensure the built‑in condensate lift and drain lines are clear to prevent water buildup or leaks.

  • Maintain Clearance: Avoid blocking intake or discharge airflow around the unit for optimal performance.

  • Annual Professional Service: Have a licensed HVAC technician check refrigerant levels, coils, and electrical connections yearly.

  • Check Mounting Stability: Periodically inspect ceiling support and cassette mounting for secure installation.

  • Keep Outdoor Unit Clean: If paired with an outdoor condenser, ensure it (and associated drain areas) stay free of debris for effective system performance.

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