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312027000
THEORY OF OPERATION
(see applicable Figure 2 or 3)
WARNING: CO
2
displaces oxygen. Strict attention must be observed in the prevention of
CO
2
(carbon dioxide) gas leaks in the entire CO
2
and soft drink system. If a CO
2
gas leak is
suspected, particularly in a small area, immediately ventilate the contaminated area before
attempting to repair the leak. Personnel exposed to high concentration of CO
2
gas will experience
tremors which are followed rapidly by loss of consciousness and suffocation.
NOTE: The six-flavor (see Figure 3) Unit was set up at the factory to dispense a still (noncarbonated)
drink from No. 3 dispensing valve and carbonated drinks from the remaining dispensing valves.
A CO
2
cylinder delivers carbon dioxide (CO
2
) gas through adjustable CO
2
regulators to applicable syrup tanks
or bag-in-box syrup system syrup pumps and to a built-in carbonator located inside the Unit. Plain water is
pumped into the carbonator carbonated water tank by a water pump and is carbonated by regulated CO
2
gas
pressure also entering the tank. When a dispensing valve is opened, CO
2
gas pressure exerted upon the syrup
tank or on the bag-in-box system syrup pump, pushes syrup through the Unit syrup cooling coils, and on to the
dispensing valve. Carbonated water is pushed by CO
2
gas pressure from the carbonated water tank and
passes through the Unit carbonated water cooling coils, and on to the dispensing valve.
Syrup and carbonated water meet simultaneously at the dispensing valve resulting in a carbonated drink being
dispensed. On the six-flavor Unit, a still (noncarbonated) drink is dispensed from the No. 3 dispensing valve in
the same manner as the carbonated drink except plain water is substituted for carbonated water.
The carbonated water tank is replenished when the carbonated water level inside the tank drops, which in turn
automatically starts the carbonator water pump. When the carbonated water level inside the tank has been re-
plenished, the carbonated water pump will stop.