MHI Adds 6 Models to Inverter Built-in "ETI Series" Centrifugal Chillers,
Expanding Cooling Capacity Range up to 700 RT
- Move Aimed at Further Market Adoption of Inverter Built-in Models -

All models in the ETI Series achieve a rated COP (coefficient of performance)*2 of 6.1, IPLV (integrated part load value)*3 of 10.2 and a part load COP of 23.8 at maximum, the highest levels of energy-saving capability in their class. Use of ETI Series units reduces annual electricity consumption by 60% compared with earlier models*4. All models use HFC-134a, a chlorine-free and zero ozone depletion potential (ODP) refrigerant.

In the ETI Series, minimization of installation space has been achieved by integrating the chiller main unit and the inverter unit into one configuration. With the newly added 700 RT model, installation space has been reduced by 40% compared with the company's constant-speed-drive chillers*5.

MHI launched the ETI Series in 2008 with models featuring cooling capacities from 150 to 500 RT. In response to steady expansion of the market for chillers with built-in inverters - more than 60% of orders to MHI last year were for inverter models - MHI opted to extend the cooling capacity range to enable further expansion of its customer segment.

In the wake of the Great East Japan Earthquake in March, concerns have risen about long-term electricity shortages, especially in the area centered on Tokyo. As a result, awareness has heightened rapidly toward the need for higher efficiency in power consumption as well as for less consumption itself. With the latest expansion of the ETI Series lineup, MHI now plans to accelerate its marketing activities promoting the adoption of inverter built-in centrifugal chillers in applications involving air-conditioning of office buildings and factory plants, in addition to promoting replacements to machines that offer higher efficiency.