Manitowoc S model

Open the Valves Prior to Starting
Open The Valves Prior To Starting The Ice Machine.
A. Slowly backseat (open-turn counterclockwise)
the suction line shut off valve.
B. Slowly backseat (open-turn counterclockwise)
the liquid line shut off valve.
C. Slowly backseat (open-turn counterclockwise)
the receiver service valve.
NOTE: You will not hear refrigerant flow when the valves are opened.
Refrigerant will not flow until the toggle switch is placed in the ice
position and the solenoid valve opens.