The Mitsubishi MSZ‑FX12NL & MUZ‑FX12NLHZ deliver efficient 12,000 BTU heating and cooling for rooms up to 500 sq ft. Featuring Hyper‑Heat technology, built-in Wi-Fi, and quiet operation, this compact ductless system ensures reliable, year-round comfort with smart control.

Unit Type: Single Zone
Product Line: FX Series
Operating Mode: Heating and Cooling
Low Ambient Heat: Yes
Number of Zones: 1
System Capacity: 12,000 BTU
Line Set Size: 1/4" x 3/8"
WiFi Enabled: Yes with Comfort App
WiFi Built In: Yes

Indoor Unit MSZ-FX12NL
Outdoor Unit MUZ-FX12NLHZ
Remote Controller Included

Cooling Capacity up to 16,100 BTU
Heating Capacity up to 23,500 BTU
SEER2 29.9
EER2 15.4
HSPF2 12.4
Heating Minimum Temp -34 F
Cooling Minimum Temp -4 F
Room Cooling/Heating Capacity up to 550 sq ft

INDOOR UNIT FEATURES
• 3D i-see Sensor® (Built-in): The advanced sensor scans each room to produce a complete thermal profile that includes heat signatures based upon size,
temperature and movement, then adjusts temperature and airflow based on user preference, and saves energy according to room occupancy.
• Dual Barrier Coating: The patented Dual Barrier Coating reduces the collection of contaminants like dust, fibers, smoke, and oil on the inner surface of
the heat pump, resulting in optimal airflow and easier maintenance.
• Dual Barrier Fusion: The patented Dual Barrier Fusion reduces the collection of contaminants like dust, fibers, smoke, and oil on the vanes of the indoor
unit, keeping it clean all year long. Dual Barrier Fusion’s shielding power is fused directly into the material of the horizontal and vertical vanes during
manufacturing to maintain effectiveness and longevity of the components, and to promote vane cleanliness and reduce odors.
• Dual Vane: Dual-Vane feature allows for airflow direction to be set independently using two vanes, which can then deliver airflow across wide areas of a
room, levels of a zone, or to two people in different locations at the same time.
• Econo Cool: Econo Cool temporarily and automatically adjusts the airflow based on heat exchanger temperature. The set temperature is increased
slightly, which saves energy, while maintaining comfort.
• Multiple control options including: Back-lit screen hand-held Remote Controller (provided with unit), comfort app, third-party interfaces and both wired
and wireless controllers
• Multiple fan speed options: Low, Medium, High, Powerful, Auto
• Powerful Mode: Temporarily drops or raises the set point and fan speed in order to quickly bring the room to the desired temperature.
• Quiet operation: Outdoor units are as quiet as a typical conversation, and most indoor units are whisper quiet.
• Slim Design: Slim wall-mounted indoor units provide zone comfort control
• Smart Dry +: The Smart Dry+ mode intelligently provides precise humidity control with minimal over-cooling of the space.
• Triple Action Filtration: Standard Microparticle and Electrostatic Enzyme Filters, along with an optional Carbon-based Deodorizing Filter. It effectively
removes non-living particulate matter like dust and smoke, utilizes nanotechnology to absorb and neutralize odors, and employs static electricity to
attract and filter charged airborne particles.
• Wi-Fi enabled units pair with the Comfort app for complete control over temperature, fan speeds, modes, schedules, and more.
OUTDOOR UNIT FEATURES
• Blue Fin Coating: An anti-corrosion treatment applied to the aluminum fins of the heat exchanger of the outdoor unit to protect against corrosion caused
by salt, sulfur, and other airborne contaminants, especially in coastal and industrial areas.
• H2i sumo™ Hyper-Heating INVERTER: 100% heating capacity at outdoor temperatures -10° F with guaranteed operation down to -22° F.
• Hot-start technology: The fan only blows air when the heat exchanger has warmed, preventing blasts of cold air at start-up.

Airflow Cooling CFM, Dry: 198-247-311-406-526
Airflow Cooling CFM, Wet: 168-210-264-345-447
Airflow Heating CFM, Dry: 177-247-311-406-477
Noise Level dB(A), Cooling: 20-24-29-36-44
Noise Level dB(A), Heating: 21-24-29-36-42
Size W x D x H: 39 -9/32" x 9-3/4" x 12"
Weight: 31.4 lbs
Electrical: 208 / 230V, 15 A