Mitsubishi – Mr. Slim MLZ Series 1-Way Ceiling Cassette Indoor Unit | R-454B | Toronto & GTA Installation Included
The Mitsubishi Mr. Slim MLZ Series 1-Way Ceiling Cassette is a sleek, low-profile ceiling-mounted indoor unit designed for multi-zone heat pump systems. Its compact design fits directly in the center of a standard 16" joist space — no bulky housing, no dropped ceiling required. Delivers single-direction airflow for rooms where a wall mount is not practical. Available in 6,000 to 18,000 BTU. This page is for the indoor unit and installation only. A compatible outdoor unit must be purchased separately. Price includes grille, wireless remote controller, and up to 20 ft of lineset with standard professional installation.
This page covers the MLZ Series indoor cassette unit and its installation only. To complete your multi-zone system you also need a compatible outdoor unit, purchased separately:
- MXZ Standard Series — 2 to 5-zone standard multi-zone outdoor units
- MXZ Hyper Heat Series — 2 to 3-zone cold climate Hyper Heat outdoor units
- PUMY Standard Series — 4 to 8-zone commercial-grade outdoor units (branch box required)
- PUMY-HL Hyper Heat Series — 4 to 8-zone Hyper Heat outdoor units (branch box required)
- ✓Mitsubishi MLZ-KX Series 1-way ceiling cassette indoor unit
- ✓Decorative grille included — MLP-448WCA (6K) or MLP-449WU (9K–18K) — shipped separately, installed by Bison Air
- ✓Wireless remote controller (MAC-FL117M-E)
- ✓Standard professional installation by TSSA Certified technicians
- ✓Up to 20 ft of lineset included — longer runs quoted separately
- ✓Connection to existing outdoor unit and full system commissioning
- ✓Mitsubishi product registration (required for warranty)
- ✓Fits in 16" Joist Space — Low-profile design installs directly in the center of a standard 16" joist bay with no dropped ceiling required. Ideal for rooms where wall space is unavailable
- ✓Single-Direction Airflow — Directional airflow distributes conditioned air along the ceiling in one direction for efficient zone coverage
- ✓R-454B Refrigerant — Low global warming potential, next-generation refrigerant meeting future environmental standards
- ✓Wi-Fi Enabled — Compatible with the Mitsubishi Comfort App via optional wireless adapter PAC-USWHS002-WF-2 (sold separately) for full remote control of temperature, fan speed, and schedules
- ✓Auto Vane Control — Motorized airflow vane adjusts automatically to distribute air evenly throughout the room
- ✓Self Clean Mode — Automatically dries internal components after use to prevent moisture buildup and odours
- ✓Econo Cool Mode — Reduces energy consumption while maintaining comfort
- ✓Whisper-Quiet Operation — Designed for bedrooms, offices, and living spaces where noise matters
- ✓208-230V / 1-Phase / 60Hz — Standard North American electrical supply
Sizing is a guideline. Actual requirements depend on insulation, ceiling height, windows, and local climate. Contact Bison Air for a proper load calculation.
All four BTU sizes share the same cabinet dimensions. Always verify clearance requirements with your installer before finalizing unit placement.
- ✓Wi-Fi Adapter for Comfort App — PAC-USWHS002-WF-2 — adds full smartphone control
- ✓Mitsubishi Hard Wired Controller — PAR-42MAACAB + MAC-497IF-E Interface — fixed wall controller for commercial applications
- ✓Aidoo Wi-Fi Controller — AZAI6WSCMEL — third-party smart home integration (Google Home, Amazon Alexa)
- ✓Auxiliary Heat Connector Cable — MAC-1710RA-U
- ✓Thermostat Interface Module — RMF-CA200-V2 + VPL24-210 Transformer — connects to any North American 24V thermostat (Honeywell, Ecobee, Nest), thermostat not included
- ✓Site assessment and optimal placement within ceiling joist space
- ✓Mounting of cassette unit and decorative grille
- ✓Up to 20 ft of lineset included — additional length quoted separately
- ✓Connection to compatible outdoor unit
- ✓Condensate drain connection and testing
- ✓System startup, leak test, and commissioning
- ✓Walkthrough of system operation with homeowner
- ✓Mitsubishi product registration for 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 on all Bison Air installations
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 — we handle rebate paperwork for eligible systems
- ✓Standard Installation Included — No Hidden Fees
- ✓Up to 20 ft Lineset Included with every indoor unit installation
- ✓Professional System Design & Equipment Selection
- ✓Clean, Organized Installations
- ✓Financing Available — Pre-qualify in seconds, no upfront payment required
Your complete Mitsubishi multi-zone system may qualify for government rebate programs available to Ontario homeowners. Bison Air is a Registered HRSP Rebate Contractor — we handle the paperwork so you don't have to.
- ✓Up to $7,500 in available rebates through Canada Greener Homes and HRSP programs
- ✓Financing available — pre-qualify in seconds, no upfront payment required
👉 Learn more about Heat Pump Rebates in Toronto & GTA
👉 Step-by-Step Ontario Rebate Guide
👉 HVAC Financing Options
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