Mitsubishi MFZ-KX15NL & SUZ-AA15NLHZ 15,000 BTU 17.3 SEER2 Hyper Heat Floor-Mounted System - R454B

Mitsubishi MFZ-KX15NL & SUZ-AA15NLHZ: 15,000 BTU Floor-Mounted Hyper-Heating Heat Pump System

The Mitsubishi MFZ-KX15NL & SUZ-AA15NLHZ is a high-efficiency, 15,000 BTU floor-mounted heat pump system designed to deliver powerful year-round comfort in residential and light commercial spaces. Equipped with advanced Hyper-Heating INVERTER® (H2i®) technology, this system ensures full heating performance down to 5°F and dependable operation as low as -13°F. The sleek MFZ-KX15NL indoor unit offers versatile mounting options—floor-standing, slightly elevated, or recessed—while the SUZ-AA15NLHZ outdoor unit features a durable, weather-resistant design with Blue Fin coating for longevity.

Perfect for medium to large rooms up to ~650 sq ft, this single-zone system offers ultra-quiet operation, adaptive airflow, and smart controls with Wi-Fi compatibility. Designed for performance in challenging climates, it delivers both efficient cooling and dependable heating in one compact package.

General Information

System Type: Floor-Mounted Indoor Unit + Hyper-Heating Outdoor Unit
Model Numbers: Indoor – MFZ-KX15NL / Outdoor – SUZ-AA15NLHZ
Capacity: 15,000 BTU Cooling / 18,000 BTU Hyper-Heating
Ideal Room Size: ~650 sq ft
Operating Mode: Heating & Cooling
Energy Star Certified: Yes
Refrigerant: R454B (2 lb, 4.7 oz)

Key Features

Hyper-Heating INVERTER® (H2i®) Technology
Delivers full-rated heat at 5°F and reliable operation down to -13°F.

Flexible Installation
Mount on the floor, elevated, or recessed into the wall.

Whisper-Quiet Performance
Indoor unit operates as low as 21 dB—ideal for bedrooms and offices.

Blue Fin Coating
Protects outdoor coil from corrosion, perfect for coastal and harsh environments.

Nano Platinum Filter
Captures allergens and odors for cleaner indoor air.

Smart Comfort Control
Supports Wi-Fi, handheld remote, and wall controllers for easy operation.

Econo Cool & Powerful Modes
Offers energy-saving cooling or fast temperature response.

Grooved Piping & Multi-Flow Vane
Enhances heat transfer and promotes wide, even airflow.

Hot-Start Technology
Prevents cold drafts by heating only when the exchanger is warm.

Specifications

Cooling Capacity: 15,000 BTU
Heating Capacity: 17,000 BTU 
EER2: 12.8
HSPF2: 10
COP @ 47°F: 3.9
COP @ 17°F: 2.5
Voltage: 208/230V, 1-Phase, 60Hz
Airflow Rate: 1,405 CFM (Cooling/Heating)
Piping: 3/8 in. (Gas) / 1/4 in. (Liquid)

Included Components

• Indoor Unit: MFZ-KX15NL

• Outdoor Unit: SUZ-AA15NLHZ

• Controller: Hand-held Remote

Optional Accessories

Indoor Unit: Wi-Fi Interface, Wired Controller, Enhanced Air Filter, Base Heater
Outdoor Unit: Drain Socket, Air Outlet Guide, Wall-Mount Bracket

Ideal For:
Homeowners and businesses in cold climates looking for a compact, quiet, and efficient floor-mounted heat pump system with advanced Hyper-Heating and smart control capabilities