Mitsubishi PLA-AE18NL & PUZ-AK18NL 18,000 BTU 24.7 SEER2 Ceiling Cassette Heat Pump System - R454B

Mitsubishi PLA‑AE18NL & PUZ‑AK18NL – 18,000 BTU R‑454B Ceiling Cassette Heat Pump Mini‑Split System

The Mitsubishi PLA‑AE18NL & PUZ‑AK18NL ceiling cassette mini-split system delivers 18,000 BTU of high-efficiency heating and cooling for year-round comfort in commercial or large residential spaces (up to ~750 sq ft). This advanced P‑Series system features R‑454B refrigerant, ENERGY STAR® performance, and reliable cold-climate heating down to -13°F with wind baffles.

General Information

System Type: Ceiling cassette ductless heat pump system (indoor & outdoor)
Indoor Model: PLA‑AE18NL
Outdoor Model: PUZ‑AK18NL
Capacity: 18,000 BTU Cooling / 23,000 BTU Heating
Room Size: Ideal for up to ~750 sq ft
Operating Modes: Heating & Cooling
ENERGY STAR®: Yes
Refrigerant: R‑454B, pre‑charged for 100 ft line sets

Key Features

3D i‑see Sensor®: Detects temperature gradients and occupancy to adjust comfort settings and improve energy savings

Cold Climate Heating: Delivers 12,000 BTU at 17°F and up to 8,800 BTU at -4°F with optional wind baffles for heating down to -13°F

Blue Fin & Seacoast Protection: Durable anti-corrosion coatings extend life in coastal and industrial areas

Ultra-Quiet Operation: Operates at 28–32 dB(A) indoors and 44–46 dB(A) outdoors for unobtrusive performance

72 Airflow Settings: Individual vane and swing mode controls adapt to room layout and occupant preferences

Built-in Condensate Lift: Internal pump supports up to 33″ lift for versatile installation

Smart Controls: Works with wired/wireless remotes, third-party thermostats, and the Mitsubishi Comfort app

Compact Design: 33″ x 33″ x 10″ cassette fits standard ceiling grids with minimal visual impact

Inverter Technology: Advanced DC compressor ensures precise temperature control and superior efficiency

Specifications (Rated Conditions)

Cooling Capacity (Max/Min): 18,500 / 5,000 BTU
Heating Capacity (Max/Min): 24,000 / 4,200 BTU
Heating at 17°F: 12,000 BTU
Heating at -4°F: 8,800 BTU
SEER2 / EER2 / HSPF2: 24.7 / 13.7 / 9.8
COP at 47°F / 17°F / -4°F: 3.7 / 2.6 / 2.16
Airflow (Cooling/Heating): 460–600 CFM
Sound Pressure (Indoor): 28–32 dB(A)
Sound Pressure (Outdoor): 44 dB(A) cooling / 46 dB(A) heating
Electrical: 208/230 V • 1‑Phase • 60 Hz
Piping Size: Liquid ¼″ • Gas ½″ • Max Length: 100 ft • Max Height Diff: 100 ft
Indoor Unit Dimensions/Weight: 33‑1/16″ × 33‑1/16″ × 10‑3/16″ • 46 lb
Outdoor Unit Dimensions/Weight: 34‑19/64″ × 11‑13/16″ × 24‑13/16″ • 99 lb

Included Components

• PLA‑AE18NL ceiling cassette indoor unit

• PUZ‑AK18NL heat pump outdoor unit

• PLP‑41EAEU 3D i‑see Sensor® grille (required)

Ideal For

Contractors, business owners, and homeowners seeking efficient ceiling-mounted climate control in demanding environments. Ideal for classrooms, offices, lobbies, and other commercial or large residential applications.