[TRNSYS-users] Type 655 problem with external files

[Santeri Siren <santeri.siren1@gmail.com>]

Dear all,

I think I have some major 
problems with air cooled chiller type 655. I created a simple example project where I 
change the ambient temperature over time and see how the COP reacts. But
 the COP doesnt change at all. It seems that the air cooled chiller 
doesnt read the external data file as it should. I used the example 
files provided with the TESS HVAC package as the external performance 
files. 

When I change the chilled water setpoint tepmerature over time then the 
COP changes but even then the chiller power doesnt change. Have you any idea why this is happening?

By the way, I do know that in the performance file the cop rating should be in the first column. However this doesnt change the fact that the ambient air temperature doesnt affect the COP. I have attached a picture of my simulation.

Thank you for advance!!

best regards. Santeri Siren

Attachment: test1.bmp
Description: Windows bitmap