Mitsubishi PEFY-L18NMAU-A 18,000 BTU Mid Static Horizontal-Ducted Indoor Unit - R454B

Mitsubishi PEFY-L18NMAU-A – 18,000 BTU/H Horizontal-Ducted Indoor Unit
Deliver powerful, concealed comfort with the Mitsubishi PEFY-L18NMAU-A, an 18,000 BTU/H horizontal-ducted indoor unit engineered for enhanced airflow performance, flexible static pressure control, and adaptable installation configurations. Designed for residential and light commercial applications, this ducted fan coil provides dependable zoned comfort while maintaining a clean, unobtrusive interior appearance.

Powerful & Efficient Performance
The PEFY-L18NMAU-A delivers 18,000 BTU/H of nominal cooling capacity and 20,000 BTU/H of nominal heating capacity for reliable year-round climate control. Powered by a high-efficiency 121W DC fan motor, the unit provides multiple airflow settings of 618, 742, and 883 CFM to accommodate a variety of duct layouts and comfort requirements.

Enhanced Static Pressure for Flexible Duct Design
Designed for more demanding duct applications, this model features five-stage external static pressure settings of 0.14, 0.20, 0.28, 0.40, and up to 0.60 in. WG. This expanded static range allows for extended duct runs, branching configurations, and customized air outlet designs, making it ideal for complex concealed installations.

Quiet Operation with High Airflow Output
Despite its high-capacity airflow, the PEFY-L18NMAU-A maintains controlled sound pressure levels ranging from 31 to 39 dB(A). This balance of strong airflow and quiet performance makes it suitable for offices, classrooms, conference areas, and residential living spaces where both comfort and acoustics are important.

Compact, Ceiling-Ready Design
With a cabinet height of just 9-7/8", the unit is engineered for low-clearance ceiling cavities while supporting higher static pressure capability. Measuring 43-5/16" W × 28-7/8" D × 9-7/8" H and weighing 67 lbs, it offers a robust yet installation-friendly solution for concealed ducted comfort delivery.

Built-In Condensate Management
The PEFY-L18NMAU-A includes an integrated condensate lift pump capable of lifting condensate up to 27-9/16", simplifying drain routing and expanding installation flexibility. A 1-1/4" O.D. drain connection supports reliable gravity or pumped condensate removal.

Smart Controls & System Compatibility
This indoor unit supports a wide range of advanced control solutions, including wired MA controllers, RedLINK® wireless remotes, third-party thermostat interfaces, and building automation integration via BACnet® or Modbus® with appropriate adapters. Optional kumo cloud® Comfort App compatibility enables remote monitoring and modern connected comfort management.

Reliable Refrigerant & Electrical Configuration
Designed for use with R454B refrigerant systems, the unit connects via 1/4" liquid and 1/2" gas lines for efficient system pairing. It operates on 208/230V single-phase power with an MCA of 2.5 and MOCP of 15 amps, ensuring safe and dependable electrical performance.

Engineered for Versatile Concealed Zoned Comfort
Purpose-built for horizontal concealed duct installations, the Mitsubishi PEFY-L18NMAU-A combines high-capacity performance with enhanced static pressure flexibility. Ideal for projects requiring extended ductwork and customized airflow distribution, this horizontal-ducted indoor unit delivers efficient, reliable, and unobtrusive climate control for demanding residential and light commercial environments.