MSZ-FX15NL & MUZ-FX15NLHZ: 15,000 BTU/H Hyper-Heating Inverter Air Conditioner
Mitsubishi Electric Wall-Mounted Indoor Unit & Outdoor Unit
Indoor Unit Features
3D i-see Sensor®
Advanced sensor scans the room to create a thermal profile, adjusting temperature and airflow based on user preference and occupancy for energy savings.
Dual Barrier Coating
Patented coating on the heat pump's inner surface reduces dust, fiber, smoke, and oil buildup, ensuring optimal airflow and easier maintenance.
Dual Barrier Fusion
Patented shielding fused into the indoor unit's horizontal and vertical vanes maintains cleanliness and reduces odors year-round.
Dual Vane
Independently adjustable vanes allow for customized airflow direction, covering wide areas, specific zones, or directing air to two different locations simultaneously.
Econo Cool
Temporarily and automatically adjusts airflow based on heat exchanger temperature, increasing the set temperature slightly for energy savings without compromising comfort.
Multiple Control Options
Includes a back-lit screen hand-held remote controller, comfort app, third-party interfaces, and wired/wireless controllers.
Multiple Fan Speeds
Options include Low, Medium, High, Powerful, and Auto fan speeds.
Powerful Mode
Temporarily adjusts set point and fan speed to quickly reach the desired room temperature.
Quiet Operation
Both indoor and outdoor units operate at very low sound levels, with outdoor units comparable to a typical conversation and indoor units described as whisper quiet.
Slim Design
The slim wall-mounted indoor units are designed for zone comfort control.
Smart Dry+
Intelligently manages humidity control with minimal over-cooling.
Triple Action Filtration
Features standard Microparticle and Electrostatic Enzyme Filters, with an optional Carbon-based Deodorizing Filter. Effectively removes particulate matter, neutralizes odors using nanotechnology, and attracts airborne particles via static electricity.
Wi-Fi Enabled
Units can pair with the Comfort app for comprehensive control of temperature, fan speeds, modes, and schedules.
Outdoor Unit Features
Blue Fin Coating
Anti-corrosion treatment on the heat exchanger's aluminum fins protects against salt, sulfur, and other airborne contaminants, particularly in coastal and industrial environments.
H2i SUMO™ Hyper-Heating Inverter
Provides 100% heating capacity at outdoor temperatures as low as -10°F, with guaranteed operation down to -22°F.
Hot-Start Technology
The fan only operates after the heat exchanger has warmed, preventing the circulation of cold air during startup.
Specifications
Cooling and Heating Performance
| Parameter | Unit | Cooling at 95°F | Heating at 47°F | Heating at 17°F | Heating at 5°F | Heating at -5°F | Heating at -10°F | Heating at -22°F |
| Maximum Capacity | Btu/h | 19,100 | 28,400 | 26,500 | 22,200 | 19,800 | 16,500 | 9,400 |
| Rated Capacity | Btu/h | 15,000 | 16,500 | 10,600 | - | - | - | - |
| Minimum Capacity | Btu/h | 3,700 | 5,150 | - | - | - | - | - |
| Maximum Power Input | W | 2,200 | 2,630 | 3,700 | 3,020 | - | - | - |
| Rated Power Input | W | 1,020 | 1,080 | 1,010 | - | - | - | - |
| Moisture Removal | Pints/h | 2.5 | - | - | - | - | - | - |
| Sensible Heat Factor | - | 0.81 | - | - | - | - | - | - |
| Power Factor [208V / 230V] | % | 100 / 100 | 97 / 97 | - | - | - | - | - |
Efficiency
| Parameter | Value |
| SEER2 | 25.9 |
| EER21 | 14.7 |
| HSPF2 [IV] | 11 |
| COP at 47°F | 4.47 |
| COP at 17°F at Maximum Capacity³ | 2.08 |
| COP at 5°F at Maximum Capacity⁴ | 2.14 |
| COP at -5°F at Maximum Capacity⁶ | 1.94 |
| COP at -10°F at Maximum Capacity⁷ | 1.82 |
| ENERGY STAR® Certified | Yes |
Electrical
| Parameter | Value |
| Voltage, Phase, Frequency | 208 / 230 VAC, 1Ø, 60 Hz |
| Guaranteed Voltage Range | 187 - 253 VAC |
| Voltage: Indoor - Outdoor, S1-S2 | 208/230 VAC |
| Voltage: Indoor - Outdoor, S2-S3 | 24 V DC |
| Short-circuit Current Rating [SCCR] | 5 kA |
| Recommended Fuse/Breaker Size (Outdoor) | 20 A |
| Recommended Wire Size [Indoor - Outdoor] | 14 AWG |
| MCA | 1 A |
Indoor Unit
| Parameter | Value |
| Fan Motor Output | 40 W |
| Airflow Rate at Cooling, Dry | 272, 339, 392, 456, 593 CFM |
| Airflow Rate at Cooling, Wet | 231, 288, 333, 387, 504 CFM |
| Airflow Rate at Heating, Dry | 272, 311, 378, 456, 614 CFM |
| Sound Pressure Level [Cooling] | 27, 31, 35, 39, 45 dB(A) |
| Sound Pressure Level [Heating] | 26, 29, 34, 39, 46 dB(A) |
| Dual Barrier Coating on Heat Exchanger | Yes |
| External Finish Color | Munsell 1.0Y 9.2/0.2 |
| Unit Dimensions (W x D x H) | 39-9/32 x 9-3/4 x 12 [998 x 247 x 305] inches [mm] |
| Package Dimensions (W x D x H) | 43-5/16 x 12-3/4 x 15-3/4 [1,100 x 330 x 400] inches [mm] |
| Unit Weight | 31.40 [14.20] lbs [kg] |
| Package Weight | 36.40 [16.50] lbs [kg] |
| Fan Motor Type | DC Motor |
| IDU Operating Temp. Range (Cooling Intake Air Temp) | 90, 73/67, 57 °FDB, °FWB / °FDB, °FWB |
| IDU Operating Temp. Range (Heating Intake Air Temp) | 80 / 70 °FDB |
Outdoor Unit
| Parameter | Value |
| MCA | 23 A |
| MOCP | 40 A |
| Fan Motor Output | 55 W |
| Airflow Rate Cooling | 2,204 CFM |
| Airflow Rate Heating | 2,440 CFM |
| Defrost Method | Reverse Cycle |
| Coating on Heat Exchanger (Bluefin, Sea Coast) | Yes, No |
| Sound Pressure Level, Cooling¹ | 51 dB(A) |
| Sound Pressure Level, Heating² | 55 dB(A) |
| Compressor Type | Twin Rotary |
| Compressor Model | SRB172FQHMT |
| Compressor Oil [Type // Charge] | RM68EH // 14.50 oz |
| External Finish Color | Munsell 3Y 7.8/1.1 |
| Base Pan Heater | Built-in |
| Unit Dimensions (W x D x H) | 33-1/16 x 13 x 34-5/8 [840 x 330 x 880] inches [mm] |
| Package Dimensions (W x D x H) | 38-3/4 x 16-3/4 x 40-3/4 [980 x 420 x 1,030] inches [mm] |
| Unit Weight | 119 [54] lbs [kg] |
| Package Weight | 138.70 [62.90] lbs [kg] |
| Cooling Intake Air Temp [Maximum / Minimum*] | 115 / 14 °FDB |
| ODU Operating Temp. Range (Cooling Thermal Lock-out / Re-start Temperatures**) | -4 / 0 °FDB |
| ODU Operating Temp. Range (Heating Intake Air Temp [Maximum / Minimum]) | 75, 65 / -22, -23.8 °FDB, °FWB / °FDB, °FWB |
| ODU Operating Temp. Range (Heating Thermal Lock-out / Re-start Temperatures**) | -34 / -23 °FDB |
| Refrigerant | R454B |
| Pre-Charged Refrigerant Amount | 3.7 lbs, oz |
| Maximum Pre-Charged Piping Length | 50 [15] ft [m] |
| Additional Refrigerant Charge Per Additional Piping Length | 0.22 oz/ft |
| Gas Pipe Size O.D. [Flared] | 1/2 [12.70] inch [mm] |
| Liquid Pipe Size O.D. [Flared] | 1/4 [6.35] inch [mm] |
| Maximum Piping Length | 100 [30] ft [m] |
| Maximum Height Difference | 50 [15] ft [m] |
| Maximum Number of Bends | 10 |
Indoor Unit Accessories
| Accessory | Part Number |
| Airzone Wired Blueface Controller Black | AZZBSBLUEZEROCN |
| Airzone Wired Blueface Controller White | AZZBSBLUEZEROCB |
| Airzone Wireless Lite Controller Black | AZZBSLITERN |
| Airzone Wireless Lite Controller White | AZZBSLITERB |
| Airzone Wireless Think Controller Black | AZZBSTHINKRN |
| Airzone Wireless Think Controller White | AZZBSTHINKRB |
| IT Extender for kumo station | PAC-WHS01IE-E |
| kumo station for the Comfort app | PAC-WHS01HC-E |
| M-Net I/O Control Interface for M-Series 2 | MAC-334IF-E |
| Procon BACnet and Modbus Interface | PAC-UKPRC001-CN-1 |
| Thermostat Interface for 3rd Party Thermostats | PAC-US445CN-1 |
| Wireless Interface Adapter for the Comfort app | PAC-USWHS002-WF-2 |
| Blue Diamond Advanced Mini Condensate Pump w Reservoir Sensor 208230V recommended | X87-721 |
| Blue Diamond MaxiBlue Advanced Mini Condensate Pump w Reservoir Sensor 110V up to 48000 BTUH recommended | X87-711 |
| Blue Diamond MegaBlue Advanced Condensate Pump w Reservoir Sensor | X87-835 |
| Blue Diamond MicroBlue Mini Condensate Pump 110/208/230V up to 18000 BTUH | X86-003 |
| Blue Diamond Sensor Extension Cable 15 Ft | C13-103 |
| Drain Pan Level Sensor Control | SS610E |
| Refco Condensate Pump 100-240 VAC up to 120000 BTUH | COMBI |
| Refco Condensate Pump 100-240 VAC | GOBI-II |
| REFCO PUMP 100-240 VAC 50/60 HZ | X86-011 |
| Sauermann Condensate Pump | S130-230 |
| Deluxe Wired MA Remote Controller | PAR-42MAAUB |
| Simple Direct Wired Remote Controller | PAC-SDW01RC-1 |
| Simple MA Remote Controller 1 | PAC-YT53CRAU-J |
| Touch MA Wired Remote Controller 1 | PAR-CT01MAU-SB |
| 100 x 1/4 x 100 1/2 Lineset Twin-Tube Insulation | MLS141212T-100 |
| 15 x 1/4 x 15 1/2 Lineset Twin-Tube Insulation | MLS141212T-15 |
| 30 x 1/4 x 30 1/2 Lineset Twin-Tube Insulation | MLS141212T-30 |
| 50 x 1/4 x 50 1/2 Lineset Twin-Tube Insulation | MLS141212T-50 |
| 65 x 1/4 x 65 1/2 Lineset Twin-Tube Insulation | MLS141212T-65 |
| Flexible Mini-Split Drain Hose | DRX-16 |
| Electro Static Anti-allergy Enzyme Filter | MAC-2330FT-E |
| Microparticle Filter | MAC-EMF515FT-E |
| Platinum Deodorizing Filter | MAC-3010FT-E |
| Lockdown Bracket for Wireless Handheld Remote Controllers | RCMKP1CB |
| RedLINK Wireless Remote Controller | MHK2 |
| Backup Heat Relay Kit Adapter for CN24 or CN152 Connector | CN24RELAY-KIT-CM3 |
| 30A600VUL fits 2 X 4 utility box - Black | TAZ-MS303 |
| 30A600VUL fits 2 X 4 utility box - White | TAZ-MS303W |
| Remote Temperature Sensor for MFZ MLZ and MSZ models | M21EAA307 |
| Wireless temperature and humidity sensor for the Comfort app | PAC-USWHS003-TH-1 |
Outdoor Unit Accessories
| Accessory | Part Number |
| Condensing Unit Mounting Pad 16 x 36 x 3 | ULTRILITE1 |
| 14 Gauge 4 wire Armored MiniSplit Cable 250 ft roll | SW144-250 |
| 14 Gauge 4 wire Armored MiniSplit Cable 50 ft roll | SW144-50 |
| 14 Gauge 4 wire MiniSplit Cable 250 ft roll | S144-250 |
| 14 Gauge 4 wire MiniSplit Cable 50 ft roll | S144-50 |
| 16 Gauge 4 wire Armored MiniSplit Cable 250 ft roll | SW164-250 |
| 16 Gauge 4 wire Armored MiniSplit Cable 50 ft roll | SW164-50 |
| 16 Gauge 4 wire MiniSplit Cable 250 ft roll | S164-250 |
| 16 Gauge 4 wire MiniSplit Cable 50 ft roll | S164-50 |
| Snow/Rain Diverter | SRD-3 |
| 18 Single Fan Stand | QSMS1801M |
| 24 Single Fan Stand | QSMS2401M |
| Condenser Wall Bracket - Stainless Steel Finish | QSWBSS |
| Condenser Wall Bracket | QSWB2000M-1 |
| Outdoor Unit 3-14 inch Mounting Base Pair - Plastic | DSD-400P |
| Outdoor Unit Stand 12 High | QSMS1201M |
| M- & P-Series Maintenance Tool Cable Set | M21EC0397 |
| Maintenance Tool Interface | PAC-USCMS-MN-1 |
| Hail Guard | HG-A7 |
| Air Outlet Guide | MAC-890SG-E |
Dimensions
Detailed dimensional drawings are provided for both the indoor (MSZ-FX15NL) and outdoor (MUZ-FX15NLHZ) units. These diagrams illustrate the physical size, mounting requirements, and necessary installation clearances for proper unit placement and service access.
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