Quote Originally Posted by benjturla View Post
Hi Guys,

Please somebody help me on this, please help me to calculate the chiller efficieny based on ambient temp. for example the chiller is running at 75% with condenser water temp at 75oF Temp IN & 81.9oF Temp with a efficiency of 0.55 KW/Ton. If the chiller is running at 75% at 84oF Temp IN and 93oF Temp OUT what is the efficiency in KW/Ton?
Assuming GPM is constant and runningat 75% at the higher condensing temp you have 0.55KW/ton at a 7 degree cond.temp . difference or 0.55/7 = ~8. So what if we say at a 9 degree difference(84oF Temp IN and 93oF Temp OUT) say 8 x 9*= ~ 7.1KW/ton Does that make sense for you or you could take phase kW= kV*amps*power factor*1.73