Cornelius REMCOR R-134A User Manual download pdf (Page 8)

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FIGURE 1. SENTRY III-A COOLING UNIT

THEORY OF OPERATION

(see Figure 2)

A CO

cylinder delivers carbon dioxide gas (CO

) through adjustable CO

regulators to the soft drink tanks and

also to the built--in carbonator located inside the Cooling Unit. Plain water is pumped into the carbonated water

tank by the water pump and is carbonated by regulated CO

pressure also entering the tank. When dispensing

valve is opened, CO

pressure exerted upon the syrup in the soft drink tank pushes syrup from the tank,

through the Cooling Unit cooling coils, through the python and on to the dispensing valve. Carbonated water is

pushed by CO

pressure from the carbonated water tank, through the Cooling Unit cooling coils, through the

python and on to the dispensing valve. Syrup and carbonated water meet at the dispensing valve resulting in a

carbonated drink being dispensed. Plain water is also available at the dispensing station by passing through the

Cooling Unit cooling coils, through the python, and on to the dispensing station. Carbonated water is replen-

ished when carbonated water level inside the carbonator tank drops to a specified level which in turn automati-

cally starts the carbonator water pump motor. When carbonated water level inside the carbonated water tank

has been replenished, carbonator water pump motor will stop. Carbonated water is continuously being circu-

lated from the Cooling Unit, out through the insulated python to the dispensing station(s), and back to the cool-

ing unit which maintains liquids in the python at a cold temperature.

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Cornelius REMCOR R-134A User Manual Page 8