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Case Studies > e3 Free Cooling Air Blast Coolers 
Overview 
One of Europe's largest and fastest growing manufacturers of plastic piping systems for the residential, commercial and infrastructure sectors approached TES to assist them in reducing their energy costs within their manufacturing facility. 
 
The Solution 
TES was asked to look specifically at the cooling requirements in the plant room and come up with a lower energy cost solution. TES proposed 2 off 40kW e3 Free Coolers to fit in alongside the existing chiller with an annual energy cost saving of £18K to the customer.  
General Features 
Easily retrofitted to existing pipework next to existing chiller 
Uses ambient air to cool throughout the year 
Available in a range of sizes 
Easy to install and modular in design 
Endorsed by Carbon Trust 
Below: Diagram to show how an e3 functions (click to enlarge) 
Technical Details 
2 off 40kW e3 units  
Nominal cooling capacity of 40kW at 10ºC delta T 
8 off axial fans diameter 946, 700 rpm and 2.2kW each output power 
2 off heat exchangers in copper tube and aluminium fins and galvanised case material 
Integral circulation pump, control panel and fan motor isolators 
Designed for water glycol (30% mix), fluid entry temp of 16.5°C, fluid flow of 25 litres per second 
Pump – single end suction circulation pump 
Electrical panel – contains motor starter for pump, temperature control system, PLC & fault indication 
 
Dimensions: 
Length: 4,790mm 
Width: 2,400mm 
Height: 2,415mm 
Dry Weight: 2,072Kg 
Operative Weight: 2,332Kg