Mitsubishi – 8-Zone 60,000 BTU Multi-Zone Standard Heat Pump Outdoor Unit | R-454B | Toronto & GTA Installation Included
Mitsubishi – 8-Zone 60,000 BTU Multi-Zone Standard Heat Pump Outdoor Unit | R-454B | Toronto & GTA Installation Included
The Mitsubishi PUMY-L60NKMU is the largest and most powerful unit in the Mitsubishi multi-zone standard heat pump lineup — a commercial-grade 8-zone inverter heat pump outdoor unit delivering 60,000 BTU of cooling and 66,000 BTU of heating across up to 8 independent indoor zones. Built for large residential properties, multi-unit buildings, and light commercial spaces requiring high total capacity and flexible zone distribution. Using next-generation R-454B low-GWP refrigerant. This page is for the outdoor unit and installation only. Indoor units and branch boxes are sold separately. Price includes standard professional installation with up to 20 ft of lineset per indoor head.
⚠️ Important — How PUMY Multi-Zone Systems Work
The PUMY series requires a branch box for indoor unit distribution. A complete system requires:
- This page — Outdoor unit (PUMY-L60NKMU) + installation
- Branch boxes — PAC-LMC30BC (up to 3 indoor units) or PAC-LMC50BC (up to 5 indoor units) — indoor installation only, sold separately. Maximum 2 branch boxes per outdoor unit
- Indoor unit pages — One compatible indoor unit per zone, each sold and installed separately
This outdoor unit supports up to 8 indoor units. A minimum of 2 indoor units is required. Contact Bison Air before purchasing to confirm your system design, branch box configuration, and indoor unit selection. This unit is sized for larger projects and requires a proper load calculation before ordering.
What's Included — Outdoor Unit & Installation
- Mitsubishi PUMY-L60NKMU multi-zone inverter heat pump outdoor unit
- Standard professional installation by TSSA Certified technicians
- Up to 20 ft of lineset per indoor head included — longer runs quoted separately
- System startup, testing and commissioning
- Mitsubishi product registration (required for warranty)
Key Features
- 8-Zone Operation — Connect up to 8 indoor units for independent temperature control across 8 separate zones — the maximum zone count in the Mitsubishi multi-zone standard lineup
- 60,000 BTU Cooling / 66,000 BTU Heating — The highest total capacity in the PUMY lineup, designed for large homes, multi-unit buildings, and light commercial spaces
- 20 SEER2 Cooling Efficiency — Efficient inverter operation across all connected zones
- 8.65 HSPF2 Heating Efficiency — Strong heating performance for year-round comfort
- R-454B Refrigerant — Low global warming potential, next-generation refrigerant meeting future environmental standards
- Branch Box Distribution System — Uses PAC-LMC branch boxes for precise refrigerant distribution to each indoor unit, enabling flexible multi-floor and multi-wing piping configurations
- Inverter-Driven Compressor — Continuously modulates output based on combined demand of all connected indoor units
- Independent Zone Control — Each indoor unit operates independently with its own temperature setting, fan speed, and mode
- Wide Indoor Unit Compatibility — Compatible with multiple indoor unit types including wall mount, floor standing, cassette, ducted, and multi-position air handler
- Blue Fin Coating — Anti-corrosion treatment on outdoor heat exchanger fins
- 208-230V / 1-Phase / 60Hz — Standard North American electrical supply
Technical Specifications
| Specification | PUMY-L60NKMU |
|---|---|
| Outdoor Unit Model | PUMY-L60NKMU |
| Total Cooling Capacity (BTU/h) | 60,000 |
| Total Heating Capacity (BTU/h) | 66,000 |
| Maximum Number of Indoor Units | 8 |
| SEER2 | 20.0 |
| EER2 | 12.0 |
| HSPF2 | 8.65 |
| Refrigerant | R-454B |
| Electrical | 208-230V / 1-Phase / 60Hz |
| Line Set Size | 3/8" × 3/4" |
| Branch Box Required | Yes — PAC-LMC30BC or PAC-LMC50BC (sold separately) |
| Max Branch Boxes per ODU | 2 |
| Compressor Type | Inverter-driven |
Required Accessories — Branch Boxes
The PUMY series requires at least one branch box for indoor unit distribution. Branch boxes must be installed indoors. Contact Bison Air to confirm the correct branch box configuration for your system.
- PAC-LMC30BC — Branch box, up to 3 indoor units (indoor installation only)
- PAC-LMC50BC — Branch box, up to 5 indoor units (indoor installation only)
Note: If using 2 branch boxes, the following additional connection parts are required:
- MSDD-50AR2-E — Flared connection adapter
- MSDD-50BR-E — Brazing connection adapter
Communication wiring: 16-2C GWA shielded cable must be used between branch box and outdoor unit.
Compatible Indoor Units
This outdoor unit is compatible with the following Mitsubishi M-Series indoor unit types. Each indoor unit is sold and installed separately — visit the individual indoor unit pages to complete your system.
| Indoor Unit Type | Models | BTU Range | Best For |
|---|---|---|---|
| Wall Mount — GX Series | MSZ-GX06/09/12/15/18/24NL-CA1 | 6K–22.4K BTU | Bedrooms, living areas, offices |
| Wall Mount — FX Cold Climate Series | MSZ-FX06/09/12/15/18NL-CA1 | 6K–17.2K BTU | Rooms requiring maximum cold climate performance |
| 1-Way Ceiling Cassette — MLZ Series | MLZ-KX06/09/12/18NL-CA1 | 6K–18K BTU | Rooms with drop ceilings or joist space (fits 16" joist) |
| Floor Standing — MFZ Series | MFZ-KX09/12/15/18NL-CA1 | 9K–17K BTU | Rooms where wall mounting is not possible |
| Ducted Low Static — SEZ Series | SEZ-AD09/12/15/18NL-U1 | 9K–17.2K BTU | Concealed ceiling installation with minimal ductwork |
| Ducted Medium Static — PEAD Series | PEAD-AA09/12/15/18/24/30/36NL-U1 | 9K–36K BTU | Larger ducted zones requiring higher static pressure |
| 4-Way Ceiling Cassette — SLZ Series | SLZ-AF09/12/15/18NL-U1 | 8.4K–17.7K BTU | Flush ceiling installation with 360° airflow distribution |
| Multi-Position Air Handler — SVZ Series | SVZ-AP12/18/24/30/36NL-U1 | 12K–36K BTU | Whole-home ducted air handler replacement (max 1 per system) |
| Cased Coil Zuba-Hybrid — PAA Series | PAA-AA/BA/CA 18/24/30/36NL-U1 | 18K–36K BTU | Hybrid heat pump + furnace installations |
Not sure which indoor units or branch box configuration to choose? Contact Bison Air — we will design your complete system based on your building layout, zone requirements, and heating and cooling loads.
Professional Installation — What's Included
- Site assessment and system design for optimal outdoor unit, branch box, and indoor unit placement
- Mounting and connection of outdoor unit
- Up to 20 ft of lineset per indoor head included — additional length quoted separately
- Electrical connection (dedicated circuit required — panel work quoted separately if needed)
- Vacuum, leak test, and full system commissioning
- Walkthrough of system operation with homeowner or building manager
- Mitsubishi product registration for 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 Per Head with Every Multi-Zone 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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- 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 multi-zone project, confirm indoor unit selection, and schedule installation.
👉 Send us a message via our Contact Form
Documents:
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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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