Mitsubishi PEAD-AA42NL & PUZ-AK42NLHZ 42,000 BTU 18.3 SEER2 Horizontal-Ducted Hyper Heat System - R454B - PEADAA42NL/PUZAK42NLHZ
The Mitsubishi PEAD-AA42NL paired with the PUZ-AK42NLHZ outdoor unit delivers efficient heating and cooling in a 42,000 BTU single-zone ducted system (heating up to 48,000 BTU). Designed for rooms up to ~1,750 sq ft, it’s ideal for homes, offices, or light-commercial spaces requiring discreet, year-round comfort.
Featuring an INVERTER-driven Hyper-Heating compressor, this system maintains heating performance down to –13°F, ensuring reliable warmth in cold climates. The slim 9-7/8″ height indoor unit includes a built-in condensate lift (up to 27-9/16″) for flexible drainage. Outdoor components are protected with Blue Fin and seacoast coatings for long-lasting corrosion resistance. Quiet operation starts at 37 dB(A) indoors. Controls include wired & wireless remotes, third-party thermostat interfaces, and smartphone access via the Comfort (kumo) app.
Features
INVERTER-driven Hyper-Heating Compressor: Maintains heating down to –13°F
Built-in Condensate Lift: Up to 27-9/16″ for flexible drainage
Compact Design: Slim 9-7/8″ height fits tight ceiling cavities
Wide External Static Pressure Range: Supports flexible ducting
Quiet Operation: Indoor 37–45 dB(A)
Base Pan Heater & Fast Start-Up: Ensures cold-climate reliability
Blue Fin & Seacoast Protection: Enhances outdoor durability
Smart Controls: Compatible with Comfort (kumo) app, wired/wireless remotes, third-party interfaces
Continuous Cooling: 24-hour operation supported
What Our Experts Think
-
42,000 BTU cooling and up to 48,000 BTU heating for rooms up to ~1,750 sq ft.
-
Horizontal-ducted design fits discreetly into ceilings or tight spaces.
-
Hyper-Heat technology ensures full heating even in cold climates.
-
Quiet, energy-efficient operation with inverter-driven performance.
-
Uses eco-friendly R‑454B refrigerant for year-round comfort.
Q&A
-
Q: What size spaces is this system suitable for?
A: Ideal for spaces up to ~1,750 sq ft.
-
Q: Can it maintain heating in cold weather?
A: Yes—Hyper-Heat delivers reliable heat even in low temperatures.
-
Q: Is it energy-efficient?
A: Yes, inverter technology and R‑454B refrigerant optimize energy use.
-
Q: Can it be used in commercial applications?
A: Yes, suitable for offices, light-commercial spaces, and large residential areas.
Maintenance Tips
-
Clean or replace air filters regularly for optimal airflow.
-
Ensure ductwork is free of dust and obstructions.
-
Inspect condensate lines to prevent buildup or clogs.
-
Schedule annual professional servicing for refrigerant and electrical checks.
-
Maintain clearance around the unit for efficient operation and airflow.
