Mitsubishi Electric wuz-sa36nmz 36K Btu Air to Water Heat Pump

Product Description

The MITSUBISHI ELECTRIC wuz-sa36nmz is a 36,000 BTU/h air-to-water outdoor heat pump unit designed for hydronic heating, cooling, and domestic hot water production in a single integrated system. Using R32 refrigerant in a split-system configuration, it delivers outlet water temperatures up to 158 degrees F even in low ambient conditions. The unit is engineered for Hyper Heating performance, maintaining 100% heating capacity down to 5 degrees F and guaranteed heating operation down to -22 degrees F. Licensed HVAC technicians working in residential and light commercial hydronic applications are the primary installers of this equipment.

The wuz-sa36nmz is suited for hydronic systems requiring a multi-function outdoor unit that handles space heating, space cooling, and domestic hot water from one piece of equipment. Its Auto Changeover feature automatically switches between heating and cooling modes to maintain the set point without manual intervention. Boiler Integration allows the system to automatically shift between heat pump and boiler operation based on ambient temperature or energy efficiency targets, making it a strong fit for hybrid hydronic installations where a fossil-fuel backup is already in place.

Key Features

• 3-in-1 operation: hydronic heating, cooling, and domestic hot water from a single outdoor unit
• Hyper Heating delivers 100% capacity at 5 degrees F with guaranteed operation to -22 degrees F
• High-flow outlet water temperature up to 158 degrees F in low ambient conditions
• Auto Changeover automatically manages heating and cooling mode transitions to hold set point
• Boiler Integration for hybrid operation — switches to boiler based on ambient temperature or efficiency logic
• Ultra-quiet operation rated as low as 41 to 45 dB(A) with three-stage low-noise mode and anti-vibration compressor insulation
• R32 refrigerant split-system design

Compatibility

Designed for use in R32 air-to-water split-system configurations compatible with the Ecodan hydronic platform, including systems requiring boiler integration for hybrid heating applications.

Installation Notes

Installation must be performed by a licensed HVAC technician familiar with hydronic systems and refrigerant handling for R32 systems. De-energize all electrical circuits and isolate the hydronic loop before connecting or servicing the unit. R32 is a mildly flammable refrigerant classified as A2L — follow all applicable local codes and manufacturer guidelines for safe handling, leak detection, and ventilation requirements. Verify that the hydronic system pressure rating, circulator sizing, and buffer tank configuration are appropriate for the unit before commissioning.

Technical Specifications

• Capacity: 36,000 BTU/h
• Refrigerant: R32
• System Type: Air-to-water split system
• Maximum Outlet Water Temperature: 158 degrees F
• Heating Operation Range: Guaranteed to -22 degrees F; 100% capacity to 5 degrees F
• Sound Level: 41 to 45 dB(A)
• Low-Noise Modes: Three-stage
• Functions: Hydronic heating, hydronic cooling, domestic hot water

Standard Information

• Brand: MITSUBISHI ELECTRIC
• Manufacturer Part Number: wuz-sa36nmz