Mitsubishi – Mr. Slim GX Series Wall Mount Indoor Unit | R-454B | Toronto & GTA Installation Included
The Mitsubishi Mr. Slim MSZ-GX Series is a wall mount indoor unit for multi-zone ductless heat pump systems. With a slim, low-profile design and built-in Wi-Fi with the Mitsubishi Comfort App — no external adapter required — it's the cleanest and most connected wall mount indoor unit in the M-Series lineup. Available in 6,000 to 24,000 BTU. Compatible with Mitsubishi MXZ standard multi-zone and PUMY commercial multi-zone outdoor units. Price includes installation of the indoor unit and up to 20 ft of lineset per head. Outdoor unit sold separately.
If the 3D i-see Sensor and enhanced filtration matter for your zone, choose the FX Series. If you need 24K BTU coverage or want a lower-cost wall mount with built-in Wi-Fi, the GX is the right choice. Contact Bison Air if you are unsure.
- ✓Mitsubishi MSZ-GX Series wall mount indoor unit — as selected
- ✓Wireless remote controller (model varies by BTU size — included)
- ✓Built-in Wi-Fi — Mitsubishi Comfort App ready, no adapter required
- ✓Professional installation of indoor unit by TSSA Certified technicians
- ✓Up to 20 ft of lineset per head included — longer runs quoted separately
- ✓System startup, testing, and commissioning (performed when full system is complete)
- ✓Built-In Wi-Fi — Comfort App Ready — Full smartphone control via the Mitsubishi Comfort App. No external Wi-Fi adapter needed — unique to the GX Series among standard M-Series wall mounts
- ✓Wireless Remote Included — Full-function wireless remote controller included with every unit
- ✓Wide BTU Range — 6,000 to 24,000 BTU covering small bedrooms through large open-concept spaces
- ✓Multi-Zone Compatible — Connects directly to Mitsubishi MXZ standard multi-zone outdoor units. Also compatible with PUMY commercial multi-zone outdoor units via branch box
- ✓R-454B Refrigerant — Low global warming potential, next-generation refrigerant
- ✓Auto Vane Control — Motorized louvers automatically direct airflow for even room coverage
- ✓Self-Clean Mode — Dries the indoor heat exchanger after use to prevent moisture buildup and odours
- ✓Quiet Operation — Low fan speed noise levels as low as 19 dB(A) for undisturbed sleeping
- ✓208-230V / 1-Phase / 60Hz — Standard North American electrical supply
Sizing is a guideline. Contact Bison Air for a proper load calculation and full multi-zone system design.
All BTU sizes share the same slim wall mount profile. Depth and width vary slightly by size — verify with your installer before finalizing placement.
- ✓Wi-Fi Comfort App — Built-in, no adapter needed — download the Mitsubishi Comfort App to your smartphone
- ✓Mitsubishi Hard Wired Controller — PAR-42MAACAB + MAC-497IF-E Interface
- ✓Aidoo Wi-Fi Controller — AZAI6WSCMEL — third-party smart home integration
- ✓Auxiliary Heat Source Control — MAC-3341F-E Interface + PAM-4 Relay + P55R-A12 Power Supply
- ✓Thermostat Interface Module — RMF-CA200-V2 + VPL24-210 Transformer — connects to any North American 24V thermostat, thermostat not included
- ✓Auxiliary Heat Connector Cable — MAC-1710RA-U
- ✓Wall mounting of indoor unit at optimal height and location
- ✓Up to 20 ft of lineset per head included — additional length quoted separately
- ✓Connection to multi-zone outdoor unit (outdoor unit must be purchased separately)
- ✓Condensate drain connection and testing
- ✓Wi-Fi setup and Comfort App connection
- ✓System startup and commissioning (when all zones are complete)
- ✓Mitsubishi product registration for 10-year warranty
- ✓10-Year Parts Warranty — Mitsubishi manufacturer warranty on registered equipment
- ✓10-Year Compressor Warranty — Mitsubishi manufacturer warranty on registered equipment
- ✓1-Year Bison Air Labour Warranty — Covers installation workmanship
Product registration with Mitsubishi is required to activate the 10-year warranty. Bison Air handles registration at the time of installation.
- ✓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 Per Head Included
- ✓Professional Multi-Zone System Design
- ✓Clean, Organized Installations
- ✓Financing Available — Pre-qualify in seconds
This indoor unit, when installed as part of a qualifying multi-zone heat pump system, may be eligible for Ontario government rebate programs. Bison Air is a Registered HRSP Rebate Contractor.
- ✓Up to $7,500 in available rebates
- ✓Financing available — pre-qualify in seconds
👉 Heat Pump Rebates — Toronto & GTA
👉 Step-by-Step Ontario Rebate Guide
👉 HVAC Financing Options
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