HOT ! Mitsubishi SLZ-AF09NL 9,000 BTU Four-Way Ceiling Cassette Indoor Unit (Unit Only) - R454B - SLZAF09NL

Mitsubishi SLZ-AF09NL 9,000 BTU Four-Way Ceiling Cassette Indoor Unit (Unit Only) - R454B - SLZAF09NL

Bring discreet, powerful comfort with the Mitsubishi SLZ‑AF09NL, a flush‑mounted ceiling cassette unit designed for efficient heating and cooling in single‑zone or multi‑zone systems.

Compact & Efficient PerformanceDelivers 9,000 BTU for cooling (11,000 BTU heating) using INVERTER-driven technology and R‑454B refrigerant—balanced efficiency and eco-friendly performance. 

Sleek, Ceiling‑Recessed DesignFits flush into a 2’ × 2’ ceiling grid with a low-profile appearance ideal for offices, retail, or living spaces.

360° & Multi‑Vane AirflowFour-way airflow with independent vane control ensures even, customizable coverage for complete room comfort. 

Quiet & Reliable OperationOperates at whisper‑quiet levels (25–31 dB(A)) with a built-in 33″ condensate lift—ensuring quiet comfort and spill-free drainage. 

Flexible System CompatibilityIdeal for pairing with outdoor units like SUZ‑AA09NL in efficient single-zone or multi-zone systems; compatible with wired/wireless controls and Comfort App.

Trusted Mitsubishi QualityBacked by Mitsubishi’s 10‑year warranty when installed by a licensed contractor and registered within 90 days—ensuring peace of mind and durability.

What Our Experts Think

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  Sleek 9,000 BTU four-way ceiling cassette designed for uniform airflow and quiet operation.

  
  


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  Provides discreet, ceiling-mounted comfort for offices, commercial spaces, and medium-sized rooms.

  
  


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  Compact, low-profile design fits between standard ceiling joists for easy installation.

  
  


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  Inverter technology ensures energy-efficient operation with precise temperature control.

  
  


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  R454B-compatible for next-generation multi-zone systems, offering long-term efficiency and compliance.

  
  

Q&A

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  Q: Does this include the outdoor unit?A: No—this is the indoor unit only and requires a compatible Mitsubishi outdoor unit.

  
  


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  Q: What size space is this suitable for?A: Ideal for medium-sized rooms around 300–450 sq. ft., depending on insulation.

  
  


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  Q: Is it noisy?A: No—engineered for whisper-quiet operation suitable for commercial or residential spaces.

  
  


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  Q: How many directions does it distribute airflow?A: Four-way airflow ensures even temperature distribution throughout the room.

  
  

Maintenance Tips

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  Clean air filters every 3–6 months for optimal airflow and efficiency.

  
  


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  Schedule annual professional maintenance to inspect coils, refrigerant lines, and electrical connections.

  
  


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  Keep ceiling area around the unit free of dust and debris.

  
  


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  Ensure the cassette remains level to prevent drainage issues.