ALL-IN-ONE HYDRONIC HEATING, COOLING, AND DOMESTIC HOT WATER

The Mitsubishi Electric Ecodan WUZ Air‑to‑Water Heat Pump delivers hydronic heating, chilled water for cooling, and domestic hot water production. Proven across Europe since 2011, the Ecodan WUZ is now optimized for Canada’s coldest climates. Its refrigerant‑split R‑32 system delivers efficient heat pump performance and hydronic comfort. By keeping water circuits indoors, this design eliminates the need for glycol or heat trace and reduces installation and maintenance costs. Integrated components and flexible piping options further simplify installation.

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Refrigerant Split System
Low GWP R-32 Refrigerant
Available in 2, 3, and 4 tons Rated Capacity
Operates at Outdoor Temperatures as low as -30°C
Up to 70°C LWT

Features

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High efficiency with COP up to 5.05

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Integrated Hydronic Accessories: Backup Heater, Expansion Tank, Pump, and Flow Sensor

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Retrofit-friendly; Compatible with Existing Hydronic Systems

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Design & Integration Flexibility

The outdoor unit connects to the all‑in‑one Hydrobox, which houses the refrigerant to water heat exchanger and hydronic accessories for streamlined installation and simplified service access. The outdoor unit extracts thermal energy from ambient air through a refrigerant circuit. An inverter‑driven compressor circulates the refrigerant to the indoor hydrobox, where heat is transferred to water. The hydrobox’s internal pump then distributes heated or chilled water through the building’s hydronic emitters, including radiators, underfloor heating, fan coils, panel radiators, or baseboards. It maintains strong performance in low‑ambient conditions and is suitable for both new construction and boiler‑replacement retrofit applications.

New Construction: 

  • Supports modern low‑temperature hydronic heating design while still delivering high water temperatures where required.
  • Reduces reliance on fossil‑fuel infrastructure and simplifies mechanical system integration.

Retrofits & Boiler Replacements: 

  • Works with existing distribution systems when paired with appropriate supply temperatures.
  • Built‑in boiler integration supports hybrid configurations for staged electrification.

Multi‑Family & Light Commercial: 

  • Compact, all‑in‑one Hydrobox consolidates key system components into a single enclosure, simplifying installation and servicing while fitting into space‑constrained mechanical rooms.
  • Long piping allowances and a small footprint provide greater flexibility in outdoor placement.

Advanced Technology

COLD CLIMATE FLEXIBLE INSTALL DOMESTIC HOT WATER QUIET COMFORTSYSTEM CONTROL

  • Hyper Heating Inverter Technology delivers 100% heating capacity at -15 °C and operation down to –30 °C.

  •           Built-in back-up electric heater for ultimate comfort.

  • The all‑in‑one Hydrobox includes a pump, expansion vessel, magnetic filter, booster electric heater, plate heat exchanger, relief valve, and flow components—reducing onsite fabrication and installation hours.
  • Front-access serviceability simplifies maintenance.
  • Compatible with long piping runs: up to 164 ft total and 100 ft vertical, supporting multi family and even complex mechanical room layouts.
  • (Best for retrofits) Highest leaving water temperature of up to 70 °C/158 °F which enables compatibility with a wide range of legacy hydronic emitters. 

  •     Leaving Water Temperature up to 70°C
  •        COP up to 5.05

  • Outdoor units operate as low as 41–45 dB(A) using anti‑vibration design and multilayer sound insulation—ideal for urban infill and multi‑unit residential construction.

  •  A typical conversation is 60-70 dB(A)

  • The Flow Temperature Controller (FTC) manages the outdoor unit, indoor hydrobox and zone control, hydronic circuit, and system temperatures.
  • Supports onboard zone control and external zone relay integration. 
  •  Built‑in features include:
    - Eco Mode
    - Booster heater management
    - Mode changeover based on outdoor temperature available
    - Advanced diagnostic and commissioning options
    - SD card duplication for fast multi-site setup