Mitsubishi – Mr. Slim FX Series Wall Mount Cold Climate Hyper Heat Plus | R-454B | Toronto & GTA Installation Included
Mitsubishi – Mr. Slim FX Series Wall Mount Cold Climate Hyper Heat Plus | R-454B | Toronto & GTA Installation Included
The Mitsubishi Mr. Slim FX Series is the most advanced wall mount heat pump in the Mr. Slim lineup — engineered for Canadian winters and built for homeowners who refuse to compromise on comfort or efficiency. Using next-generation R-454B low-GWP refrigerant and Mitsubishi's H2i SUMO™ Hyper-Heating Inverter technology, the FX Series delivers exceptional heating performance with outdoor unit operation down to -36.7°C (-34°F) — the deepest cold climate rating in the residential ductless category. Available in six sizes from 6,000 to 20,800 BTU. All prices include standard professional installation with up to 20 ft of lineset.
FX Series vs GX Series — Which Is Right For You?
Both are premium Mitsubishi R-454B heat pumps. Here is exactly how they differ so you can make the right choice:
| Feature | FX Series (This Page) | GX Series |
|---|---|---|
| Cold Climate Rating | Operates to -36.7°C (-34°F) | Operates to -25°C (-13°F) |
| Max SEER2 (Cooling Efficiency) | Up to 35 SEER2 | Up to 28.4 SEER2 |
| Max HSPF2 (Heating Efficiency) | Up to 12.1 HSPF2 | Up to 10.7 HSPF2 |
| 3D i-see Sensor | ✅ Included — scans room, detects occupants, adjusts airflow automatically | ❌ Not included |
| Dual Barrier Fusion | ✅ Included — anti-contaminant coating on vanes + heat exchanger | Dual Barrier Coating on heat exchanger only |
| Design | Matte finish, modern premium aesthetic | Standard gloss finish |
| Available BTU Range | 6K – 24K BTU | 9K – 36K BTU |
| Best For | Maximum cold climate performance, energy savings, smart comfort | Reliable everyday heating and cooling at a lower price point |
Bottom line: If you want the best cold weather performance, highest efficiency, and the smartest indoor unit available in the Mr. Slim lineup — the FX Series is your system. If your priority is reliable heating and cooling at a lower price point, the GX Series delivers excellent value. Contact Bison Air and we will help you choose the right fit for your home.
What's Included — System Components
- Mitsubishi MSZ-FX Series wall mount indoor air handler
- Mitsubishi MUZ-FX Series H2i SUMO™ Hyper-Heating inverter outdoor unit
- Wireless remote controller
- Standard professional installation by TSSA Certified technicians
- Up to 20 ft of lineset included — longer runs quoted separately
- System startup, testing and commissioning
- Mitsubishi product registration (required for 10-year warranty)
Key Features
- H2i SUMO™ Hyper-Heating Inverter Technology — Mitsubishi's most powerful cold climate compressor, maintaining strong heating output at extreme low temperatures down to -36.7°C (-34°F)
- R-454B Refrigerant — Low global warming potential, next-generation refrigerant meeting future environmental standards
- Up to 35 SEER2 Cooling Efficiency — Among the highest SEER2 ratings available in the residential ductless category
- Up to 12.1 HSPF2 Heating Efficiency — Exceptional year-round operating cost savings
- 3D i-see Sensor® (Built-in) — Advanced infrared sensor scans the entire room, creating a complete thermal profile based on occupant size, temperature, and movement. Automatically adjusts temperature and airflow for personalized comfort, and reduces energy consumption when the room is unoccupied
- Dual Barrier Fusion — Patented anti-contaminant treatment fused directly into the material of the horizontal and vertical vanes, in addition to the heat exchanger — keeping the entire indoor unit cleaner for longer with less maintenance
- Dual Barrier Coating on Heat Exchanger — Reduces buildup of dust, fibers, smoke, and oil on the indoor coil for optimal airflow and easier cleaning
- Built-in Wi-Fi — Factory-installed Wi-Fi pairs directly with the Mitsubishi Comfort App for full control of temperature, fan speed, mode, and schedules from any smartphone or tablet. No external adapter required for app control
- Matte Finish Premium Design — Award-winning modern aesthetic that blends seamlessly with contemporary interiors
- Blue Fin Coating on Outdoor Unit — Anti-corrosion treatment on heat exchanger fins, ideal for coastal and urban GTA environments
- Built-in Base Pan Heater — Prevents condensate from freezing at the outdoor unit during cold weather operation and defrost cycles
- Hot-Start Technology — Fan delays until the heat exchanger is warm, eliminating cold air blasts at startup or after defrost
- Triple-Action Filtration — Nano Platinum filter, deodorizing filter, and electrostatic anti-allergy enzyme filter work together to capture particles, eliminate odours, and neutralize allergens
- Econo Cool Mode — Automatically adjusts airflow and set point to reduce energy consumption while maintaining comfort
- Smart Set — Save a preferred temperature, fan speed, and airflow direction profile for one-touch activation
- Powerful Mode — Temporarily boosts refrigerant flow and fan speed for rapid heating or cooling
- Smart Dry Mode — Removes excess humidity with minimal overcooling
- Inverter-Driven Compressor — Continuously modulates output to maintain precise temperature without energy-wasting on/off cycling
- Whisper-Quiet Operation — Indoor unit operates as low as 19 dB(A)
- 208-230V / 1-Phase / 60Hz — Standard North American electrical supply
Technical Specifications
| Specification | 6K BTU | 9K BTU | 12K BTU | 15K BTU | 18K BTU | 24K BTU |
|---|---|---|---|---|---|---|
| Indoor Unit Model | MSZ-FX06NL-CA1 | MSZ-FX09NL-CA1 | MSZ-FX12NL-CA1 | MSZ-FX15NL-CA1 | MSZ-FX18NL-CA1 | MSZ-FX24NL-CA1 |
| Outdoor Unit Model | MUZ-FX06NLHZ2-CA1 | MUZ-FX09NLHZ2-CA1 | MUZ-FX12NLHZ2-CA1 | MUZ-FX15NLHZ2-CA1 | MUZ-FX18NLHZ2-CA1 | MUZ-FX24NLHZ2-CA1 |
| Cooling Capacity (BTU/h) | 6,000 | 9,000 | 12,000 | 15,000 | 17,200 | 20,800 |
| Heating Capacity (BTU/h) | 9,000 | 12,000 | 13,200 | 16,500 | 17,000 | 19,800 |
| SEER2 | 35.0 | 33.1 | 29.9 | 25.9 | 25.5 | 23.5 |
| EER2 | 21.45 | 18.35 | 15.4 | 14.7 | 13.05 | 13.35 |
| HSPF2 | 11.0 | 12.1 | 12.0 | 10.1 | 10.6 | 10.4 |
| Min. Operating Temp (Heating) | -36.7°C (-34°F) cut-out — H2i SUMO™ Hyper-Heating | |||||
| Refrigerant | R-454B | |||||
| Electrical | 208-230V / 1-Phase / 60Hz | |||||
| Line Set Size | 1/4" × 3/8" | 1/4" × 3/8" | 1/4" × 3/8" | 1/4" × 1/2" | 1/4" × 1/2" | 1/4" × 5/8" |
| Compressor Type | H2i SUMO™ Inverter-driven rotary | |||||
| Wi-Fi | Built-in (Mitsubishi Comfort App) | |||||
| 3D i-see Sensor | Built-in | |||||
Indoor Unit Dimensions
All six FX Series sizes share the same indoor cabinet dimensions — no size variation to plan around.
| BTU Sizes | Width | Depth | Height |
|---|---|---|---|
| 6K, 9K, 12K, 15K, 18K, 24K BTU | 39-9/32" (998 mm) | 9-3/4" (248 mm) | 12" (305 mm) |
Minimum clearances required: 4" on sides, 14" below unit, 4" above unit. Always refer to installation manual for complete requirements.
Recommended Room Size by BTU
| BTU Size | Recommended Application |
|---|---|
| 6K BTU | Very small rooms, dens, home offices (up to ~300 sq ft) |
| 9K BTU | Small bedrooms, offices (up to ~450 sq ft) |
| 12K BTU | Bedrooms, offices (~550–700 sq ft) |
| 15K BTU | Medium rooms, master bedrooms (~700–900 sq ft) |
| 18K BTU | Living areas, open-concept spaces (~800–1,000 sq ft) |
| 24K BTU | Large living areas, open-concept spaces (~1,100–1,400 sq ft) |
Room sizing is a guideline. Actual requirements depend on insulation, ceiling height, windows, and local climate. Contact Bison Air for a proper load calculation.
Optional Controls & Upgrades
The FX Series supports a range of optional control upgrades. Ask your Bison Air technician which option is right for your setup:
- Mitsubishi Hard Wired Controller — PAR-42MAACAB + MAC-497IF-E Interface — for commercial or multi-unit applications requiring a fixed wall controller
- Aidoo Wi-Fi Controller — AZAI6WSCMEL — third-party smart home integration (Google Home, Amazon Alexa, etc.)
- Auxiliary Heat Source Relay Kit — CN24RELAYKITCM3 — for controlling an external auxiliary heat source
- Auxiliary Heat Connector Cable — MAC-1710RA-U — for auxiliary heat source connection
- Thermostat Interface Module — RMF-CA200-V2 + VPL24-210 Transformer — connects to any North American 24V thermostat (Honeywell, Ecobee, Nest, etc.), thermostat not included
Professional Installation — What's Included
- Site assessment and optimal placement of indoor and outdoor units
- Mounting of indoor air handler and outdoor condenser
- Up to 20 ft of lineset included — additional length quoted separately
- Electrical connection (dedicated circuit required — panel work quoted separately if needed)
- Vacuum, leak test, and system commissioning
- Remote controller setup and Wi-Fi pairing
- Walkthrough of system operation with homeowner
- Mitsubishi product registration for 10-year parts & compressor warranty
Note: The outdoor unit must be elevated a minimum of 18" (457 mm) off grade or roof surface, or as required by local snowfall conditions, to ensure proper wintertime operation during defrost cycles.
Why Choose Bison Air
- ✅ TSSA Certified HVAC Contractor
- ✅ Fully Licensed & Insured HVAC Technicians
- ✅ Registered HRSP Heat Pump Rebate Contractor
- ✅ Standard Installation Included — No Hidden Fees
- ✅ Up to 20 ft Lineset Included with Every Ductless Installation
- ✅ Professional System Design & Equipment Selection
- ✅ Clean, Organized Installations
- ✅ Financing Available — Pre-qualify in Seconds
- ✅ Serving Toronto, York Region, Peel Region, Barrie & all GTA Communities
Financing & Rebates Available
Upgrading your heating and cooling system is an important investment. Bison Air offers flexible financing options to help homeowners install high-efficiency HVAC systems with manageable payment plans. Some energy-efficient systems may also qualify for available rebate programs in Ontario.
Learn more about available incentives on our Heat Pump Rebates page.
Our team can help you understand the available financing and rebate options.
Related Services
- Ductless mini split systems
- Heat pump heating and cooling systems
- Heat Pump Installation Toronto
- Heat pump services in Toronto
- HVAC Services in Toronto & GTA
- HVAC Installation Toronto & GTA
Areas We Serve
Bison Air installs Mitsubishi multi-zone heat pump systems across the Toronto and Greater Toronto Area, including: Toronto| North York | Scarborough | Etobicoke | Vaughan | Markham | Richmond Hill | Aurora | Newmarket | East Gwillimbury | King City | Stouffville | Mississauga | Brampton | Oakville | Milton | Burlington | Barrie | Innisfil | Bradford | Keswick | Orillia | Ajax | Pickering | Whitby | Oshawa | Orangeville
Ready to Install? Contact Bison Air Today
Call us at 416-652-4323 or toll-free at 1-833-833-3623 to discuss your project, confirm indoor unit selection, and schedule installation.
👉 Send us a message via our Contact Form
Documents:
: Warranty:
Parts: 10 Years
Labor: 1 Years
Extend labor warranty 10 years for $700.
The price includes complete installation and warranty and is based on standard installation. However, the price may vary depending on the location and any extra work required, such as high voltage wiring, duct modification, crawl space, or any other specific installation condition.
This information is general. Contact us for proper heat pump size, talk to an advisor, or request an in-home consultation.
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