ECOi-W R32, the new range of sustainable chiller solutions

The optimal performance in any climatic condition.

High efficiency level
· High efficiency levels thanks to an efficient compressor’s performance, specially designed for R32 refrigerant

R32 Refrigerant
Thanks to a GWP (Global Warming Potential) of 675, this refrigerant is 3 times less polluting than the standard R410A.

High flexibility
· Capacity range from 50 to 170 kW

· Customisable design

· Operating range: -15 °C (heating) to 48 °C (cooling)

High quality
· Defrost limiting coil design

· Optimised design for service and maintenance

· Compact footprint

GWP - Measurement scale

Operating conditions
Panasonic ECOi-W provides a wide operating range from -15 °C in heating to 48 °C in cooling.

A water outlet temperature of -10 °C in cooling offers a uniqueness to the ECOi-W Series, which can ensure the operation temperature of the process equipment in factories.

Ambient temperature in cooling and heating

Water outlet temperature in cooling and heating

Cooling: Outside air temperature (°C (DB)). Heating: Outside air temperature (°C (WB)).
1) 47 °C (models 150 - 170).

Cooling: Outside air temperature (°C (DB)). Heating: Outside air temperature (°C (WB)).
 2) 53 °C (models 150 - 170)

Quality, efficiency and sustainability 

Offering a highly efficient and environmentally friendly solution; the combination of a 3 times less polluting refrigerant along with a new generation of outdoor heat exchangers helps to reduce the carbon footprint of each unit by 84%.

*Comparison made between equivalent units operating respectively with R410A and R32 refrigerants. Impact only considers the refrigerants and not the units as a whole.

Better for your buildings, therefore better for the planet.

1) U-150 R32 Cooling Only. 2) U-130 R32 Heat Pump Chiller.


· 10 sizes - 4 chassis
· Cooling only or Reversible units
· Low GWP R32 refrigerant
· High efficiency
· Wide operating limits
· Low footprint
· Advanced control system
· Easy maintenance
· Standard or Super low noise versions
· Remotely controllable with ECOi-W Cloud
· 100% factory tested


Compact units
Designed in a compact manner to ensure the smallest possible footprint. 

Scroll Compressors
The two Scroll compressors are optimized for the R32 refrigerant and are covered with sound jackets in “Super low noise” versions.

EC fans
For an even better efficiency level and improved acoustic performance, ECOi-W R32 units can be equipped with EC fans.

Removable panels
Great accessibility to internal components for easy service operations.

Super low noise versions
For the entire range, customers can choose between a standard unit or a super low noise version.

Outstanding water pump configuration
Units can be equipped with a variable speed pump that automatically adjusts its speed according to the required capacity.

Electronic expansion valve
This reliable and high-performance valve minimises overheating of the evaporator. 

Highly optimised external heat exchanger
New coil design enables a refrigerant charge reduction of 40%.

Simple user-friendly control for outdoor units

The ECOi-W R32 units are equipped with a user-friendly external control panel that displays the operating parameters and alarms.
Optimised for EC fans control and electronic expansion valve management.
The controller comes built-in with the following communication protocols: Modbus RTU, Modbus TCP/IP, Bacnet MSTP, Bacnet IP.

More information