Mitsubishi SEZ-AD09NL & SUZ-AA09NL 9,000 BTU 17.6 SEER2 Horizontal Ducted System - R454B

Mitsubishi SEZ‑AD09NL & SUZ‑AA09NL: 9,000 BTU Ducted Concealed Heat‑Pump System

The Mitsubishi SEZ‑AD09NL ducted concealed indoor unit paired with the SUZ‑AA09NL outdoor condenser creates a high-efficiency 9,000 BTU single-zone heat-pump system ideal for bedrooms, small offices, or discreet residential spaces. Featuring advanced INVERTER-driven technology and eco-friendly R-454B refrigerant, this system delivers precise temperature control with excellent part-load efficiency, while the Blue Fin anti-corrosion coating protects the outdoor coil for long-lasting durability.

Designed for tight installation spaces, the SEZ‑AD09NL boasts a slim 7-7/8" height, fitting neatly into ceiling cavities, soffits, or closets without sacrificing performance. The built-in condensate drain pump simplifies installation, ensuring reliable moisture management.

This system comfortably heats and cools spaces up to approximately 350 sq ft, providing quiet operation—indoor noise as low as 23 dB(A)—and energy-efficient performance with ENERGY STAR® certification.

Control options include Mitsubishi’s wired and wireless remotes, plus full smartphone access via the kumo cloud® app for remote monitoring and scheduling.

General Information

• System Type: Ducted concealed indoor unit + single-zone heat-pump condenser

• Models: Indoor – SEZ‑AD09NL | Outdoor – SUZ‑AA09NL

• Capacities: 9,000 BTU Cooling | Up to 12,000 BTU Heating

• Room Size: Ideal for ~350 sq ft

• Operating Modes: Heating & Cooling

• ENERGY STAR®: Yes

• Refrigerant / Factory Charge: R-454B, 2 lb

Key Features

• INVERTER-Driven Compressor: Ensures precise, energy-efficient operation.

• Compact, Low-Profile Design: Fits tight ceiling or closet spaces with ease.

• Quiet Operation: Indoor sound levels as low as 23 dB(A) for minimal disruption.

• Built-In Drain Pump: Simplifies condensate management in concealed installations.

• Blue Fin Anti-Corrosion Coating: Protects the outdoor unit from harsh environments.

• Advanced Controls: Compatible with kumo cloud® app, wired/wireless remotes, and thermostat interfaces.

• Smart Control Integration: Enables scheduling and remote system management.

Specifications (Rated Conditions)

• Cooling Capacity: 9,000 BTU

• Heating Capacity: Up to 12,000 BTU

• Electrical: 208/230 V 1-Ph 60 Hz

• Sound Pressure: Indoor 23 dB(A)

• Piping: Liquid 1/4 in. | Gas 3/8 in. | Max length 65 ft | Max height 40 ft

• Outdoor Dimensions / Weight: 31-1/2 × 11-1/4 × 21-3/4 in. | 81 lb

Included Components

• Indoor Unit: SEZ‑AD09NL ducted concealed unit

• Outdoor Unit: SUZ‑AA09NL heat-pump condenser

Ideal For

Homeowners and small-business owners seeking a quiet, energy-efficient, and discreet ducted solution to heat and cool small single zones such as bedrooms, home offices, or boutique retail areas. The system delivers advanced remote control, reliable performance, and durability backed by Mitsubishi’s trusted warranty.