Mitsubishi – Mr. Slim GX Series Wall Mount Standard Heat Pump | R-454B | Toronto & GTA Installation Included
Mitsubishi – Mr. Slim GX Series Wall Mount Standard Heat Pump | R-454B | Toronto & GTA Installation Included
The Mitsubishi Mr. Slim GX Series Wall Mount Heat Pump delivers reliable year-round heating and cooling for residential and light commercial applications across the Toronto and GTA region. Using next-generation R-454B low-GWP refrigerant, this inverter-driven single-zone ductless system reaches up to 28.4 SEER2 cooling efficiency and 10.7 HSPF2 heating efficiency, with heating operation down to -25°C (-14°F) — making it a dependable choice for Canadian winters. Available in seven sizes from 9,000 to 33,200 BTU. All prices include standard professional installation with up to 20 ft of lineset.
What's Included — System Components
- Mitsubishi MSZ-GX Series wall mount indoor air handler
- Mitsubishi MUZ-GX Series inverter heat pump 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
- R-454B Refrigerant — Low global warming potential, next-generation refrigerant meeting future environmental standards
- Inverter-Driven Compressor — Continuously adjusts output to maintain precise temperature without energy-wasting on/off cycling
- Heats to -25°C (-14°F) — Reliable heating performance through Canadian winters without auxiliary heat
- Up to 28.4 SEER2 — Among the highest cooling efficiency ratings in its class
- Up to 10.7 HSPF2 — High heating efficiency for lower operating costs year-round
- 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.
- Dual Barrier Coating — Patented indoor coil coating that resists dust, oil, and smoke buildup, maintaining airflow and making maintenance easier
- Blue Fin Coating — Anti-corrosion treatment on outdoor unit heat exchanger fins, ideal for coastal and urban environments
- Built-in Base Pan Heater — Prevents condensate from freezing at the outdoor unit during cold weather operation
- Hot-Start Technology — Fan delays until the heat exchanger is warm, preventing cold air blasts at startup
- Dual Anti-Allergy Filter — Electrostatic enzyme filter captures and breaks down airborne particles and 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 when needed
- Smart Dry Mode — Removes excess humidity with minimal overcooling for improved indoor comfort
- Whisper-Quiet Operation — Indoor units operate as low as 19 dB(A), suitable for bedrooms and offices
- 208-230V / 1-Phase / 60Hz — Standard North American electrical supply
Technical Specifications
| Specification | 9K BTU | 12K BTU | 15K BTU | 18K BTU | 24K BTU | 30K BTU | 36K BTU |
|---|---|---|---|---|---|---|---|
| Indoor Unit Model | MSZ-GX09NL-CA1 | MSZ-GX12NL-CA1 | MSZ-GX15NL-CA1 | MSZ-GX18NL-CA1 | MSZ-GX24NL-CA1 | MSZ-GX30NL-CA1 | MSZ-GX36NL-CA1 |
| Outdoor Unit Model | MUZ-GX09NLH2-CA1 | MUZ-GX12NLH2-CA1 | MUZ-GX15NLH2-CA1 | MUZ-GX18NLH2-CA1 | MUZ-GX24NLH2-CA1 | MUZ-GX30NLH2-CA1 | MUZ-GX36NLH2-CA1 |
| Cooling Capacity (BTU/h) | 9,000 | 12,000 | 14,000 | 18,000 | 22,400 | 30,600 | 33,200 |
| Heating Capacity (BTU/h) | 10,900 | 14,400 | 18,000 | 21,600 | 27,600 | 32,600 | 35,200 |
| SEER2 | 28.4 | 25.6 | 22.2 | 22.5 | 21.5 | 19.2 | 18.5 |
| EER2 | 15.4 | 13.35 | 13.0 | 14.05 | 13.0 | 9.05 | 8.4 |
| HSPF2 | 10.7 | 10.0 | 10.4 | 9.8 | 9.7 | 8.6 | 8.3 |
| Min. Heating Temp | -25°C (-14°F) | ||||||
| Refrigerant | R-454B | ||||||
| Electrical | 208-230V / 1-Phase / 60Hz | ||||||
| Line Set Size | 1/4" × 3/8" | 1/4" × 3/8" | 1/4" × 1/2" | 1/4" × 1/2" | 1/4" × 5/8" | 1/4" × 5/8" | 1/4" × 5/8" |
| Compressor Type | Inverter-driven rotary | ||||||
| Wi-Fi | Built-in (Mitsubishi Comfort App) | ||||||
Indoor Unit Dimensions
The MSZ-GX Series comes in two cabinet sizes depending on BTU capacity. Verify wall space and clearance requirements before installation.
| BTU Sizes | Width | Depth | Height |
|---|---|---|---|
| 9K, 12K, 15K BTU | 31-13/32" (798 mm) | 9-21/32" (245 mm) | 11-25/32" (299 mm) |
| 18K, 24K, 30K, 36K BTU | 43" (1,092 mm) | 13" (330 mm) | 17-25/32" (452 mm) |
Minimum clearances required: 4" on sides, 14" below unit, 4" above unit. Always refer to installation manual for complete requirements.
Optional Controls & Upgrades
The GX Series supports a range of optional control upgrades depending on your application. 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
- Thermostat Interface Module — RMF-CA200-V2 + VPL24-210 Transformer — connects to any North American 24V thermostat (Honeywell, Ecobee, Nest, etc.), thermostat not included
Recommended Room Size by BTU
| BTU Size | Recommended Application |
|---|---|
| 9K BTU | Small rooms, bedrooms, home 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) |
| 30K BTU | Large open-concept areas (~1,400–1,700 sq ft) |
| 36K BTU | Very large areas, light commercial (~1,700–2,000 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.
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 — not included if panel work is 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 & labour 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
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- 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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