Mitsubishi 12,000 BTU Commercial Horizontal Ducted Unit (PEAD-A12AA9 & PUZ-A12NKA7) -R410A - PEAD-A12AA9 / PUZ-A12NKA7
The Mitsubishi 12,000 BTU horizontal ducted single zone heat pump (PEAD-A12AA9 & PUZ-KA12NKA7) is an extremely efficient heating and cooling option that can fit in a limited space while still providing amazing comfort. This quiet beast of a single zone is built for residential homes, retail shopping centers, larger classrooms, office complexes, conference rooms, ballrooms, fitness centers, and more.
This particular single zone system has a P-series outdoor that does provide cooling down to 0 F, and only provides heating down to 5 F. Although this single zone can be used in commercial applications, it is mainly for residential purposes due to its cooling limitations.
This single zone unit runs on a variable speed INVERTER-driven compressor to save you money while it runs. It is energy star certified and is built to be an efficient system for your home or business. This single zone unit is perfect for customers that have limited space but want a great system.
What Our Experts Think
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The PEAD-A12AA9 paired with the PUZ-A12NKA7 outdoor unit delivers 12,000 BTU of reliable heating and cooling in a single-zone horizontal-ducted configuration.
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Ideal for tight or concealed spaces, this system fits in ceilings, attics, or mechanical closets while still providing robust, quiet performance.
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Designed for commercial and larger residential applications, it works well in classrooms, office complexes, retail spaces, fitness centers, or multi-use areas requiring consistent year-round comfort.
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Features R-410A refrigerant and an inverter-driven compressor for high efficiency and energy savings.
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Its ducted design allows discreet integration with existing HVAC ductwork, giving uniform airflow without occupying wall space.
Q&A
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Q: Is this unit suitable for residential homes?
A: Yes. While it’s commercial-grade, it’s also ideal for large residential rooms, home offices, or basement/attic setups.
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Q: Can it operate in very cold climates?
A: It performs reliably in most moderate climates. For extremely cold regions, Mitsubishi Hyper-Heating (H2i) models are recommended instead.
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Q: How quiet is this ducted unit?
A: Designed for low-noise operation, suitable for classrooms, offices, or spaces where quiet is important.
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Q: Can this unit connect to existing ducts?
A: Yes. The horizontal-ducted design is compatible with standard ductwork, making it ideal for retrofit or new construction projects.
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Q: What’s the maximum coverage area?
A: Typically effective for small to medium single-zone spaces, around 400–600 sq ft, depending on insulation and layout.
Maintenance Tips
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Check and clean air filters every 2–4 weeks to maintain airflow and efficiency.
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Inspect the duct connections and seals annually to prevent leaks.
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Keep the indoor coil and blower wheel clean; a licensed technician should perform deep cleaning every 1–2 years.
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Verify that the condensate drain line is clear to avoid water damage.
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Schedule a professional system check before winter and summer peak seasons to ensure reliable performance.
