Mitsubishi PLA-AE48NL & PUZ-AK48NL 48,000 BTU 19.4 SEER2 Ceiling Cassette Heat Pump System (w/ Grille) - R454B

Mitsubishi PLA-AE48NL & PUZ-AK48NL: 48,000 BTU Ceiling Cassette Heat Pump System

The Mitsubishi PLA-AE48NL indoor cassette paired with the PUZ-AK48NL outdoor heat pump delivers powerful, high-volume heating and cooling performance with 48,000 BTU of rated capacity. Designed for large commercial and residential applications up to ~2,400 sq ft, this system is ideal for retail stores, office spaces, restaurants, classrooms, lobbies, and expansive living areas requiring strong airflow, year-round comfort, and quiet, efficient operation.

The indoor cassette features Mitsubishi’s advanced 3D i-see Sensor®, which scans the room for heat signatures, temperature variations, and movement to adjust airflow and output automatically for optimal comfort and energy savings. It supports individual vane settings, high/low ceiling airflow modes, and an up-and-down swing function for broad, balanced air circulation. A built-in condensate lift mechanism, knockouts for fresh-air intake and branch ducting, and a standard 33" × 33" ceiling footprint make installation flexible across light commercial environments. The washable filter and filter-change indicator simplify maintenance.

The PUZ-AK48NL outdoor unit incorporates an INVERTER-driven twin rotary compressor, delivering precise capacity control and excellent operational efficiency. It supports 24-hour continuous cooling operation, fast restart, and multiple system protections including high pressure, high temperature, and defrost safeguards. Low-ambient cooling down to 0°F ensures dependable performance even during extreme conditions. Its Blue Fin coating and full seacoast protection—featuring phosphate and acrylic enamel coatings, epoxy-coated components, and a corrosion-resistant coil—are rated for 2,000 hours of ASTM B117 salt spray durability, making the system suitable for coastal, industrial, and harsh outdoor installations.

Despite its large capacity, the system maintains quiet operation with indoor sound levels starting at 34 dB(A). It integrates seamlessly with Mitsubishi’s Comfort App, wired and wireless controllers, and third-party thermostat interfaces for full control flexibility. With robust heating output up to 60,000 BTU at 47°F and continuous cooling performance, this system offers reliable, efficient comfort year-round for large, high-demand spaces.

General Information

System Type: Ceiling cassette indoor unit + single-zone heat pump outdoor unit
Models: Indoor – PLA-AE48NL | Outdoor – PUZ-AK48NL
Capacities: 48,000 BTU Cooling (Max 49,000 | Min 17,000), 60,000 BTU Heating at 47°F
Room Size: Ideal for ~2,400 sq ft
Operating Modes: Cooling + Heating (24-hour continuous cooling mode)
ENERGY STAR®: No
Refrigerant / Factory Charge: R-454B, 11 lb 7 oz (pre-charged for 100 ft line length)

Key Features

3D i-see Sensor®: Intelligent thermal and occupancy detection
INVERTER-Driven Compressor: Precise and efficient performance
Low-Ambient Cooling: Operates down to 0°F for full-capacity cooling
Blue Fin & Seacoast Protection: Heavy-duty corrosion resistance
Quiet Operation: Indoor sound levels as low as 34 dB(A)
High Airflow Output: Up to 1,200 CFM for large-area coverage
Smart Controls: Comfort app, wired/wireless remotes, thermostat compatibility
Flexible Installation: Standard ceiling footprint, condensate lift, and airflow options

Specifications (Rated Conditions)

Cooling Capacity: 48,000 BTU (Max 49,000 | Min 17,000) | SEER2: 19.4 | EER2: 10.4
Heating Capacity: 60,000 BTU at 47°F | 33,400 BTU at 17°F | 23,000 BTU at 5°F | 26,700 BTU at –4°F
Electrical: 208/230 V, 1-Ph, 60 Hz | MCA: 38 A | MOCP: 67 A
Indoor Airflow: 740–1,200 CFM | Indoor Sound: 34–45 dB(A)
Outdoor Sound: 60–62 dB(A)
Piping: Liquid 3/8 in | Gas 5/8 in | Max line length: 245 ft | Max height: 100 ft
Outdoor Dimensions / Weight: 41-11/32 × 13-31/32 × 52-43/64 in | 265 lb
Indoor Dimensions / Weight: 33-1/16 × 33-1/16 × 11-3/4 in | 57 lb
Drain Connection: 1-1/4 in O.D.

Included Components

Indoor Unit: PLA-AE48NL ceiling cassette
Outdoor Unit: PUZ-AK48NL heat pump condenser

Ideal For

Large commercial or residential spaces requiring strong cooling and heating capacity, advanced comfort control, and reliable low-ambient operation. The Mitsubishi PLA-AE48NL & PUZ-AK48NL delivers efficient, durable climate performance ideal for demanding year-round applications.