So after all my endless product research and YouTube watching, I've come to learn that under NO circumstances are you supposed to open the red dial while recharging the system. Interesting. Wait a minute! That manifold set in the above picture doesn't have a red dial!
Originally Posted By: Merkava_4
So after all my endless product research and YouTube watching, I've come to learn that under NO circumstances are you supposed to open the red dial while recharging the system. Interesting. Wait a minute! That manifold set in the above picture doesn't have a red dial!
I reckon you need your eyes checked. It clearly has a "red dial". What it doesn't have is red knob controlling a valve that you can see in the photo (rest assured the high side knob has a red insert). If you don't know which knob is the high side valve then let someone who has half a clue do it for you.