Have a YCAL chiller that just took over, we are having a problem with it shutting down on low suction pressure in low ambient conditions. Have unit set up for low ambient operation and have condenser vfd setup as it says in the book that I have. I don't have very much info on chiller so if somebody has some I would love a copy to my email. Going tomarrow to check out. Another tech was there today that doesn't have much chiller experience but got it running. Going to check transducers and such. Any help would be appreciated.