Mitsubishi PEFY-L12NMAU-A 12,000 BTU Mid Static Horizontal-Ducted Indoor Unit - R454B

Mitsubishi PEFY-L12NMAU-A – 12,000 BTU/H Horizontal-Ducted Indoor Unit
Deliver versatile, concealed comfort with the Mitsubishi PEFY-L12NMAU-A, a 12,000 BTU/H horizontal-ducted indoor unit engineered for flexible installation, quiet airflow performance, and enhanced static pressure capability. 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-L12NMAU-A delivers 12,000 BTU/H of nominal cooling capacity and 13,500 BTU/H of nominal heating capacity, ensuring reliable year-round comfort. Built with an 85W high-efficiency DC fan motor, the unit offers multiple airflow settings of 265, 318, and 371 CFM to match comfort demands and duct system requirements.

Enhanced Static Pressure for Flexible Duct Design
Unlike low static models, the PEFY-L12NMAU-A supports 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 pressure range provides exceptional flexibility for duct extension, branching, and customized air outlet configurations, making it ideal for more complex concealed duct applications.

Quiet Operation with Strong Airflow Control
With sound pressure levels as low as 26 dB(A), the PEFY-L12NMAU-A delivers quiet performance suitable for bedrooms, offices, and other sound-sensitive environments. Even at higher fan speeds, noise levels remain controlled, reaching only 34 dB(A), balancing comfort and acoustic efficiency.

Compact, Ceiling-Ready Design
Designed for concealed ceiling installations, the unit features a compact cabinet height of 9-7/8" for low-clearance applications. Measuring 27-9/16" W × 28-7/8" D × 9-7/8" H and weighing only 48 lbs, it offers an installation-friendly solution for both retrofit and new construction projects requiring hidden comfort delivery.

Built-In Condensate Management
The PEFY-L12NMAU-A includes an integrated condensate lift pump capable of lifting condensate up to 27-9/16", providing increased drain routing flexibility compared to standard ducted units. A 1-1/4" O.D. drain connection ensures reliable condensate removal for gravity or pumped drainage configurations.

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

Reliable Refrigerant & Electrical Configuration
Designed for use with R454B refrigerant systems, the unit connects via a 1/4" liquid line and 1/2" gas line for efficient pairing with compatible outdoor equipment. It operates on 208/230V single-phase power with an MCA of 1.88 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-L12NMAU-A combines efficient performance with enhanced static pressure flexibility. Ideal for applications requiring more advanced duct configurations, this horizontal-ducted indoor unit delivers reliable, quiet, and unobtrusive climate control for residential and light commercial environments.