Mitsubishi PEAD-AA42NL & PUZ-AK42NLHZ 42,000 BTU 18.3 SEER2 Horizontal-Ducted Hyper Heat System - R454B

Mitsubishi PEAD-AA42NL & PUZ-AK42NLHZ: 42,000 BTU Ducted Concealed Hyper-Heat Pump System

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.

General Information

System Type: Ducted concealed indoor unit + single-zone hyper-heat pump outdoor unit
Models: Indoor – PEAD-AA42NL | Outdoor – PUZ-AK42NLHZ
Capacities: 42,000 BTU Cooling | 42,000 BTU Heating (Max 48,000)
Room Size: Ideal for ~1,750 sq ft
Operating Modes: Heating & Cooling (continuous cooling supported)
ENERGY STAR®: Yes
Refrigerant / Factory Charge: R-454B, pre-charged for 100 ft

Key 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

Specifications (Rated Conditions)

Indoor Airflow (Cooling/Dry): 1,042 / 1,148 / 1,254 / 1,483 CFM
Sound Pressure (Cooling/Heating): 37 / 39 / 41 / 45 dB(A)
External Static Pressure: 0.14, 0.20, 0.28, 0.40, 0.60 in. WG
Drain Connection: 1-1/4 in. O.D.
Electrical (Indoor Unit): MCA 4.25 A | Fan Motor 300 W
Outdoor Features: Blue Fin & seacoast coatings, base pan heater, fast start-up
Piping: Liquid 3/8 in. | Gas 5/8 in. | Max line length: 245 ft | Max height difference: 100 ft
Indoor Dimensions / Weight: 55-1/8 × 28-7/8 × 9-7/8 in. | 86 lb
Outdoor Dimensions / Weight: 41-11/32 × 14 × 52-43/64 in. | 231 lb

Included Components

Indoor Unit: PEAD-AA42NL ducted concealed unit
Outdoor Unit: PUZ-AK42NLHZ hyper-heat pump condenser

Ideal For

Homeowners, installers, and light-commercial professionals seeking a quiet, high-capacity ducted hyper-heat pump system. The PEAD-AA42NL & PUZ-AK42NLHZ provides efficient year-round heating and cooling, cold-climate reliability, durable outdoor protection, and flexible smart controls for large single-zone spaces.