Draining

Robinair Smart Cart and Robinair 17234 draining station
1 Connect the blue low-pressure hose to the low-pressure side of the compressor.
2 Connect the red high-pressure hose to the high-pressure side of the compressor.
3 Using the yellow hose, connect the pressure gauge stand's middle outlet to the draining station.
4 Open the cocks on the blue low-pressure hose and the red high-pressure hose and the cock on the yellow hose connected to the pressure gauge stand's middle outlet.
5 Open the blue cock ("Liquid") for liquid refrigerant and the red cock ("Gas") for gaseous refrigerant on the draining station's container.
6 Start the draining station. When draining is completed, the draining station automatically switches off or the pressure gauge shows 0.
7 Close the cocks on the blue low-pressure hose, the red high-pressure hose and the yellow hose connected to the pressure gauge stand's middle outlet.
8 Remove the yellow hose from the draining station. Draining is now completed and work on the A/C system can commence.