Mitsubishi PLFY-L18NFMU-A 18,000 BTU Four-Way Ceiling Cassette Indoor Unit - R454B

Mitsubishi PLFY-L18NFMU-A – 18,000 BTU/H Ceiling Cassette Indoor Unit

Deliver discreet, high-capacity comfort with the Mitsubishi PLFY-L18NFMU-A, an 18,000 BTU/H ceiling cassette indoor unit engineered for uniform airflow distribution, advanced sensing technology, and flexible installation. Designed for residential and light commercial applications, this compact ceiling-recessed unit provides dependable zoned comfort while maintaining a clean, unobtrusive ceiling appearance.

High-Capacity & Efficient Performance
The PLFY-L18NFMU-A delivers 18,000 BTU/H of nominal cooling capacity and 20,000 BTU/H of nominal heating capacity for reliable year-round comfort in medium to large spaces. With power consumption of approximately 0.04 kW in both cooling and heating, the unit is designed for efficient operation.

Four-Speed Airflow with 3D Turbo Fan Technology
Equipped with a DC motor and advanced 3D turbo fan, the unit provides airflow settings of 315, 390, and 460 CFM with additional auto-fan capability. This enhanced airflow performance supports even air distribution across larger areas.

Quiet Operation with Ceiling-Mounted Design
Operating at sound pressure levels as low as 33 dB(A) and up to 43 dB(A), the PLFY-L18NFMU-A balances strong airflow performance with acceptable sound levels for residential and commercial environments.

Compact 2' x 2' Ceiling Cassette Design
The unit is designed to fit within standard ceiling tile grids, measuring approximately 22-7/16" W × 22-7/16" D × 8-3/16" H and weighing 31.3 lbs. Its square-edge, sleek panel design allows for seamless ceiling integration while preserving wall and floor space.

Advanced 3D i-see Sensor® with Occupancy Detection
Optional 3D i-see Sensor® technology scans the room to detect occupancy and adjust airflow and temperature accordingly. This intelligent feature enhances comfort while improving energy efficiency by reducing output when spaces are unoccupied.

Flexible Airflow Patterns & Independent Vane Control
The unit supports multiple airflow patterns—including two-way, three-way, and four-way discharge—to accommodate various room layouts. Independent vane angle settings allow precise airflow direction control for improved comfort and targeted conditioning.

Built-In Condensate Lift & Ventilation Support
A factory-integrated condensate lift pump provides up to 33 inches of lift, simplifying drainage installation and reducing the need for external pumps. The unit also supports ventilation air intake, enhancing indoor air quality options.

Reliable Refrigerant & Electrical Configuration
The system uses R-454B refrigerant with 1/4" liquid and 1/2" gas line connections for efficient system pairing. It operates on 208/230V single-phase power with an MCA of 0.36 and MOCP of 15 amps, ensuring safe and dependable electrical performance.

Engineered for Discreet, Intelligent Zoned Comfort
Purpose-built for ceiling cassette applications, the Mitsubishi PLFY-L18NFMU-A combines compact design, quiet operation, and advanced airflow control. Ideal for medium to large rooms or commercial spaces, this indoor unit delivers efficient, reliable comfort with intelligent sensing and flexible installation options.