Mitsubishi SLZ-AF12NL & SUZ-AA12NLHZ 12,000 BTU 16.8 SEER2 Four-Way Ceiling Cassette Hyper Heating Heat Pump System (w/ Standard Grille) - R454B - SLZAF12NL/SLP18FAU/SUZAA12NLHZ
The Mitsubishi SLZ‑AF12NL 4‑way ceiling cassette, combined with the cold‑climate SUZ‑AA12NLHZ Hyper‑Heating outdoor condenser, forms a 12 k BTU single‑zone system designed for efficient year‑round performance in colder regions. It features R454B refrigerant, INVERTER-driven operation, and Pulse-Amplitude Modulation (PAM) control to deliver responsive heating and cooling even in subfreezing temperatures.
Ideal for spaces around 500 sq ft, the system includes the required SLP‑18FAU decorative grille, offers ultra-quiet operation, and comes Wi‑Fi ready for seamless app-based control via the Mitsubishi Comfort Cloud. The 4‑way airflow design ensures even temperature distribution, while built‑in features like a 33" condensate lift pump and Blue Fin coating increase reliability and installation flexibility.
Features
Hyper‑Heating INVERTERTechnology – Delivers reliable heating at outdoor temps as low as –13°F.
4‑Way Vane Control – Even air distribution in all directions.
Built‑In 33" Lift Pump – Enables flexible drain line placement above ceiling level.
Wi‑Fi Built‑In – Remote control and scheduling through the Mitsubishi Comfort Cloud app.
Ultra‑Quiet Operation – Indoor sound as low as 25 dB(A), outdoor max 52 dB(A).
Blue Fin Anti‑Corrosion Coating – Protects outdoor coil from environmental damage.
Fresh‑Air Intake Option – For enhanced air quality and ventilation.
3D i‑see SensorCompatibility – Optional occupancy and thermal sensing for smarter comfort.
Hot‑Start Technology – Prevents cold air drafts on heat startup.
High‑Efficiency Heat Exchanger – Boosts seasonal performance in variable climates.
What Our Experts Think
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12,000 BTU four-way ceiling cassette ideal for single-zone spaces up to ~500 sq ft.
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Hyper-Heating INVERTER technology ensures reliable year-round heating and cooling in subfreezing temperatures.
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Compact ceiling cassette provides discreet, low-profile installation with standard grille.
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Pulse-Amplitude Modulation (PAM) allows precise temperature control and energy efficiency.
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Uses eco-friendly R454B refrigerant with Blue Fin-coated coil for durability.
Q&A
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Q: What size area is suitable for this system?
A: Ideal for single-zone spaces up to ~500 sq ft.
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Q: Can it handle cold climates?
A: Yes, Hyper-Heating technology maintains performance even in subfreezing conditions.
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Q: Where can it be installed?
A: Ceiling-mounted cassette for low-profile, discreet installation.
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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 free of debris for optimal performance.
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Inspect indoor unit mounting and grille periodically for stability.
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Ensure condensate lines remain clear to prevent water damage.
