Mitsubishi SEZ-AD18NL 18,000 BTU Horizontal Ducted Indoor Unit - R454B

Mitsubishi SEZ‑AD18NL – 18,000 BTU Ducted Concealed Indoor Unit
Deliver powerful, efficient climate control with the Mitsubishi SEZ‑AD18NL, a compact ducted indoor unit designed for seamless integration in tight ceilings and concealed spaces.

Slim, Space-Saving Design
With a height of just 7-7/8", this unit fits easily into ceiling cavities, closets, or soffits, making it ideal for residential and light commercial installations requiring discreet comfort.

Quiet & Efficient Operation
Provides 17,200 BTU of cooling and heating using advanced INVERTER technology. Operates quietly at levels as low as 23 dB(A), ensuring comfort without distraction.

Flexible Ducted Air Distribution
Supports short-run ducting to multiple rooms or focused airflow in one area. Features external static pressure adjustment and built-in drain pump for versatile installation.

Smart Control Compatibility
Works with Mitsubishi wired and wireless controllers, plus the kumo cloud® app for remote monitoring, scheduling, and control via smartphone.

Pairs with Mitsubishi Outdoor Units
Optimized to work with outdoor units such as the SUZ‑AA18NL and SUZ‑AA18NLHZ, delivering high performance and energy efficiency in single- or multi-zone systems.

Trusted Mitsubishi Warranty
Backed by Mitsubishi’s comprehensive warranty when installed by licensed professionals, ensuring long-lasting, reliable comfort.