Hi all,

A quick question i am currently charging a medium size dorin compressor for a cold stor application. The system was recently vacced. I am in the process of charging the system by weight to its full charge. Due to the fact that the system is R404a i am charging on the liquid side. However whilst i am charging (system is turned off) the suction side gauge on the manifold is going into retard.

Could somone expalin why this is happening and how i can overcome this?

Thanks in advance