Cornelius PRO ED FAST GATE Training Manual page 22

FILTER-REGULATOR (FACTORY-SET
OUTLET PRESSURE TO 32-36 PSIG)
AIR/CO2 SUPPLY
50 PSIG MAX.
IMPORTANT: USE CO2 ONLY.
IMPORTANT: "WET" CO2 WILL CAUSE STICKING PROBLEMS
WITH ICE GATE MECHANISM.
PNEUMATIC GATE SOLENOID VALVE
MANUAL OVERIDE SOLENOID VALVE
3-WAY NORMALLY CLOSED
3-WAY NORMALLY CLOSED
ICE GATE CYLINDER REVERSE
SINGLE ACTING-SPRING EXTENDED