Mitsubishi MUZ-FX12NLHZ-U1 12,000 BTU Heat Pump Outdoor Unit - R454B - MUZFX12NLHZU1

Mitsubishi MUZ-FX12NLHZ-U1 12,000 BTU Heat Pump Outdoor Unit - R454B - MUZFX12NLHZU1

Engineered for energy-efficient, year-round comfort, the Mitsubishi MUZ‑FX12NLHZ is a compact FX-Series outdoor condenser with Hyper‑Heating INVERTER (H2i) technology—delivering reliable performance even in extreme cold.

Powerful Cold-Climate Heating & Cooling
With 12,000 BTU cooling and up to 14,000 BTU heating capacity, the MUZ‑FX12NLHZ ensures consistent indoor comfort in outdoor temperatures as low as -13°F. High SEER2 and HSPF2 ratings provide significant energy savings for spaces up to ~500 sq ft.

Compact & Quiet Design
Built with space-conscious installation in mind, this outdoor unit features a slim profile and quiet operation as low as 48 dB(A), making it ideal for residential areas, patios, and balconies.

Smart Control Ready
Compatible with the Mitsubishi Kumo Cloud® app (with optional Wi-Fi adapter), allowing remote temperature control, scheduling, and monitoring from your smartphone or tablet for added convenience.

Reliable Single-Zone Operation
Designed for exclusive pairing with MSZ‑FX indoor units, this system supports advanced comfort features such as INVERTER-driven performance, Smart Set modes, and automatic defrost for efficient operation in any season.

Proven Mitsubishi Quality
Backed by Mitsubishi’s industry-leading 10-year parts warranty (when installed and registered by a licensed contractor), the MUZ‑FX12NLHZ delivers dependable comfort, efficiency, and peace of mind.

What Our Experts Think

• High-performance 12,000 BTU heat pump outdoor unit designed to pair with Mitsubishi FX Series indoor units.

• Uses environmentally friendly R454B refrigerant for improved efficiency and compliance with modern standards.

• Delivers reliable heating and cooling year-round with precise temperature control.

• Compact, durable design ensures long-lasting operation even in harsh weather conditions.

• Ideal for residential or light commercial installations seeking energy efficiency and performance.

Q&A

• Q: What indoor units are compatible?
  A: Designed to work with Mitsubishi FX Series wall-mounted indoor units.

• Q: What refrigerant does it use?
  A: Environmentally friendly R454B.

• Q: Can it provide both heating and cooling?
  A: Yes, it functions as a full heat pump system.

• Q: Is professional installation required?
  A: Yes, installation by a certified HVAC technician is recommended for optimal performance.

Maintenance Tips

• Keep outdoor coils clean and free of debris for maximum efficiency.

• Ensure the unit is level and properly secured to prevent vibration.

• Schedule annual professional maintenance to maintain optimal performance.

• Check refrigerant levels periodically to ensure peak efficiency.