Mitsubishi MSZ-EX09NLW & SUZ-AA09NLHZ 9,000 BTU 17.4 SEER2 Wall Mounted Hyper Heat Pump System – R454B

Mitsubishi MSZ‑EX09NLW & SUZ‑AA09NLHZ: 9,000 BTU Wall‑Mounted Hyper‑Heat Pump System

The Mitsubishi MSZ‑EX09NLW indoor unit paired with the SUZ‑AA09NLHZ outdoor condenser delivers efficient 9,000 BTU cooling and a robust 12,000 BTU Hyper‑Heating output. Designed for single‑zone applications—but with an EX‑series head that can also be used in future multi‑zone builds—this inverter‑driven mini‑split provides reliable, whisper‑quiet comfort for rooms up to 350 sq ft, even when outdoor temperatures plunge to ‑13 °F. The system uses eco‑friendly R‑454B refrigerant and includes a factory base‑pan heater for cold‑climate dependability.
Note: this package is not compatible with Mitsubishi “smart” outdoor platforms.

General Information

System Type: Wall‑mounted ductless air handler + single‑zone Hyper‑Heat pump condenser
Models: Indoor – MSZ‑EX09NLW | Outdoor – SUZ‑AA09NLHZ
Capacities: 9,000 BTU Cooling | 12,000 BTU Heating
Room Size: Ideal for up to  350 sq ft
Operating Modes: Heating & Cooling
ENERGY STAR®: Yes
Refrigerant / Factory Charge: R‑454B, pre‑charged

Key Features

• INVERTER Technology: Variable‑speed compressor for precise, energy‑saving operation

• Hyper‑Heating Performance: Maintains 100 % heating capacity at 5 °F; heats reliably down to ‑13 °F

• Single‑ or Multi‑Zone Flexibility: EX indoor unit works in both single‑ and multi‑zone designs

• Base‑Pan Heater: Factory‑installed to prevent ice buildup in severe cold

• Dual Barrier Coating & Advanced Filtration: Helps keep the coil clean while improving air quality

• Quiet Operation: Indoor sound as low as 21 dB(A) for near‑silent comfort

• Smart Control Ready: Compatible with wired/wireless remotes and the Mitsubishi Comfort app

• Smart‑Outdoor Compatibility Notice: Not compatible with “smart” condensers

Specifications (Rated Conditions)

Cooling Capacity: 9,000 BTU | EER2: 12.6| SEER2: 17.4
Heating Capacity @ 47 °F: 12,000 BTU | HSPF2:10| COP (47 °F): 3.9
Heating Capacity @ 5 °F: 12,000 BTU (100 %)
Electrical: 208/230 V | 1‑Ph | 60 Hz | MCA: 13 A | MOCP: 15 A
Airflow (Dry): 143 – 448 CFM
Sound Pressure: Indoor 21 – 45 dB(A) | Outdoor 54 – 55 dB(A)
Piping: Liquid ¼ in. | Gas ⅜ in. | Max line length 100 ft | Max height 50 ft
Outdoor Dimensions / Weight: 33‑1/16 × 13 × 34‑5/8 in. | 115 lb
Drain Connection: ⅝ in. O.D.

Included Components

• Indoor Unit: MSZ‑EX09NLW wall‑mounted air handler

• Outdoor Unit: SUZ‑AA09NLHZ Hyper‑Heat condenser

• Hand‑held IR Remote Controller

Ideal For

Homeowners and contractors seeking a compact, cold‑climate heat‑pump solution for small‑to‑medium rooms. This package delivers year‑round comfort with Hyper‑Heating performance today, while the EX‑series head keeps future multi‑zone expansion options open—without the complexity of Mitsubishi’s smart outdoor systems.