Mitsubishi MLZ-KX09NL & SUZ-AA09NLHZ 9,000 BTU 16.7 SEER2 One-Way Ceiling Cassette Hyper Heating Heat Pump System (w/ Grille) - R454B - MLZKX09NL/MLP449WU/SUZAA09NLHZ
The Mitsubishi MLZ-KX09NL & SUZ-AA09NLHZ is a sleek, 9,000 BTU 1-way ceiling cassette heat pump system designed for discreet, high-performance comfort in homes and light commercial spaces. Featuring advanced Hyper-Heating INVERTER® (H2i®) technology, it delivers full-rated heating capacity at 5°F and reliable operation down to -13°F. The compact MLZ-KX09NL indoor unit fits between standard 16" ceiling joists for a flush, low-profile look, while the SUZ-AA09NLHZ outdoor unit offers durable inverter-driven efficiency and Blue Fin corrosion protection.
Ideal for small rooms up to ~350 sq ft, this single-zone system provides quiet comfort, customizable airflow, smart Wi-Fi control, and energy-saving performance in a space-saving ceiling-mounted form.
Features
Hyper-Heating INVERTER® (H2i®) Technology
Full-rated heating at 5°F; reliable performance down to -13°F outdoor temperatures.
EZ FIT Ceiling Installation
Slim cassette fits between standard 16" joists for flush, grille-only appearance.
Built-in Condensate Lift Pump
19.6" lift height simplifies drainage in ceiling-mounted setups.
Whisper-Quiet Operation
Indoor sound levels as low as 27 dB(A) for unobtrusive comfort.
Blue Fin Coating
Protects the outdoor coil against corrosion in humid or coastal environments.
Advanced Filtration
Washable antibacterial and deodorizing filters improve air quality.
Smart Comfort Control
Compatible with Mitsubishi Electric’s Comfort app, handheld remote, and wired wall controllers.
Auto Vane & Hot-Start Technology
Motorized airflow and draft-free heating start-up for enhanced comfort.
What Our Experts Think
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9,000 BTU one-way ceiling cassette ideal for single-zone residential or light-commercial spaces.
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Hyper-Heating INVERTER (H2i) provides full heating at 5°F and reliable operation down to –13°F.
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Compact, flush-mount design fits between standard 16" ceiling joists for a low-profile appearance.
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Blue Fin coil protection and inverter-driven efficiency ensure durability and long-term performance.
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Energy-efficient system delivers consistent year-round comfort.
Q&A
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Q: What size room is suitable for this system?
A: Ideal for small rooms or zones requiring up to 9,000 BTU.
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Q: Can it heat efficiently in cold climates?
A: Yes, Hyper-Heating technology maintains reliable heating down to –13°F.
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Q: Where can it be installed?
A: Ceiling-mounted, flush between standard joists for a discreet, low-profile look.
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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 levels and performance.
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Keep outdoor unit free of debris for optimal operation.
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Inspect ceiling unit and mounting periodically for stability.
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Ensure condensate drains remain unobstructed to prevent water damage.
