Remcor Cornelius VANGUARD 245, Installation & Service Manual, Page: 10 / 71

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5
THEORY OF OPERATION
UNIT REQUIRING CONNECTION TO REMOTE CARBONATOR
(see applicable Figure 2, 3, or 4)
NOTE: The Unit was set up at the factory to dispense a still (noncarbonated) drink from No. 3
dispensing valve (six-flavor Unit) or No. 4 dispensing valve (eight-flavor Unit) and carbonated drinks
from remaining dispensing valves. The still (non-carbonated) drink dispensing valves may be
converted to also dispense a carbonated drinks. Refer to TABLE OF CONTENTS for converting still
(non-carbonated) drink dispensing valves to dispense carbonated drinks.
A CO
2
cylinder delivers carbon dioxide (CO
2
) gas through adjustable CO
2
regulators to the applicable syrup
tanks or bag-in-box syrup pumps and also the remote carbonator. Plain water enters the remote carbonator
water tank and is carbonated by CO
2
gas pressure also entering the water tank. When dispensing valve is
opened, CO
2
gas pressure exerted upon the applicable syrup tank contents or bag-in-box syrup pump pushes
syrup from the syrup supply, through the Unit cooling coils, and on to the dispensing valve. Carbonated water is
pushed from the remote carbonator by CO
2
gas head pressure and is pushed through the Unit cooling coils to
the dispensing valve. Syrup and carbonated water meet simultaneously at the dispensing valve resulting in a
carbonated drink being dispensed. A still (non-carbonated) drink is dispensed from the No. 3 dispensing valve
(six-flavor Unit) or No. 4 dispensing valve (eight-flavor) Unit in the same manner as the carbonated drink except
plain water is substituted for carbonated water.
The six-flavor Vanguard 245 Post-Mix Dispenser (P/N 497306660WS) is equipped with a plain water dispensing
spout located between No. 5 and No. 6 dispensing valves (see Figure 2 and9). A filtered plain water supply line
is connected to the plain water solenoid valve on top of the refrigeration deck. Pressing the plain water dispense
switch on side of the drip tray support opens the electrically operated plain water solenoid valve which permits
chilled plain water to be dispensed.
UNIT WITH INTEGRAL (BUILT–IN) CARBONATOR
(see applicable Figure 5 or 6 )
NOTE: The Unit was set up at the factory to dispense still (noncarbonated drinks) from No. 4 and No. 5
dispensing valves and carbonated drinks from the remaining dispensing valves. If the factory installed
option to convert No.4 or 5 or both No.4 and 5 to dispense a carbonated drink instead of a still
(non-carbonated) drink was installed on your Unit, refer to TABLE OF CONTENTS for the conversion
instructions.
A CO2 cylinder delivers carbon dioxide (CO2) gas through adjustable CO2 regulators to the applicable syrup
tanks or bag-in-box syrup pumps and also the integral (built-in) carbonator. Plain water enters the integral
carbonator carbonated water tank and is carbonated by CO2 gas pressure also entering the water tank. When
dispensing valve is opened, CO2 gas pressure exerted upon the applicable syrup tank contents or bag-in-box
syrup pump pushes syrup from the syrup supply, through the Unit syrup cooling coil, and on to the dispensing
valve. Carbonated water is pushed from the integral carbonator carbonated water tank by CO2 gas head
pressure and is pushed through the carbonated water manifold to the dispensing valve. Syrup and carbonated
water meet simultaneously at the dispensing valve resulting in a carbonated drink being dispensed. A still
(non-carbonated) drink is dispensed from No. 4 and No. 5 dispensing valves in the same manner as the
carbonated drink except plain water is substituted for carbonated water.