LTHW pipe sizing & pressure drop calculations with effect of Ethylene Glycol Eythyle-Glycol and 60% being used.

Question

Hi all, i want to do LTHW pipe sizing & pressure drop calculations on Hevacomp based on following conditions : 
 Please note the flow and return temps are 80 &ndash; 60 degree C 
 
 Eythyle-Glycol and 60% being used. Is there any way I can input Ethylene Glycol 60 % into the software input ? Please respond ASAP. I am struggling to complete a model ASAP.

Puneet Chauhan · Answer

Thanks for reply I did the same but as soon as I am using the CHW program and adding values in chilled water system data it is showing unacceptable value entered permitted range is 0 to 40 please see screenshot below : 
 I 
 
 Is there any other way how to use Hevacomp to calculate the pressure drop & Sizing of LTHW pipe. I am thinking one way that in which can we do Pipe Size manually from the CIBSE Pipe sizing excel spread sheet V2.1 then we draw pipe circuit in the LTHW system of Hevacomp. then fix the pipe size manually as per CIBSE Pipe sizing excel spread sheet V2.1. but my problem is how to take care of friction due to increased viscosity of Glycol ? 
 can you suggest some percentage margin on overall pressure drop value from your past experience?