Cornelius IDC 255 Installation Manual page 9

Apply a continuous bead of NSF International (NSF) silastic sealant (Dow 732 or equal) approximately
1/4-inch inside of the unit outline dimensions and around all openings. Then, position the unit on the
counter within the outline dimensions. All excess sealant must be wiped away immediately.
2. The beverage tubes, drain tube and power cord are routed through the large opening in the bottom
of the unit. See the MOUNTING TEMPLATE for locating the required clearance opening in the
counter for these utility lines.
DRIP TRAY DRAIN ASSEMBLY: Route the drain tube to an open drain with the end of the tube above
the "flood" level of the drain. Use the tubing, fittings, clamps, and insulation provided with the Dispenser
to assemble the drain. The completed drain line must pitch continuously downward and contain no
"traps" or improper drainage will result.
NOTE: IMI Cornelius Inc. recommends that a water shutoff valve and water filter be installed in
the plain water inlet supply line. A Cornelius Water Filter (P/N 313860000) and QUICK
DISCONNECT SET (P/N 313867000) are recommended.
CAUTION: Check the minimum flow rate and the maximum pressure of the plain water inlet supply
line. MINIMUM FLOW RATE MUST BE AT LEAST 125-GALLONS PER HOUR. If flow rate is less
than 125-gallons per hour, starving of the carbonator water pump will occur. Starving will overheat
the carbonator's water pump, causing the safety thermostat on the pump outlet to stop the water
pump motor. Overheating could occur if the plain water supply line flow rate drops below 125-
gallons per hour. INCOMING PLAIN WATER INLET SUPPLY LINE WATER TO PUMP PRESSURE
MUST REMAIN A MINIMUM OF 10 psi BELOW THE CARBONATED CO
PRESSURE. (Example: Carbonator CO
pressure can be no more than 65 psi, etc.). Static water pressure higher then the static CO
pressure can cause carbonator flooding, malfunction, and leakage through the carbonator relief
valve. If water is exceeding maximum pressure specifications, a Water Pressure Regulator Kit must
be installed in the plain water inlet supply line.
3. Cut power to the carbonator by turning off its power switch, the switch is located on the junction box
of the pump and motor assembly. Locate the carbonator pump assembly and connect to power cord
from the Ice/Drink Unit to the pump. The cord is connected to the unit's electrical box and has an
electrical connector on the end that plugs into a receptacle in the junction box at the carbonator
pump assembly. Connect inlet water to pump and pump outlet to Ice/Drink Unit using 3/8-inch food-
grade tubing.
© 2006, IMI Cornelius Inc.
HOSE CLAMP
DRAIN LINE
1" I.D. PLASTIC TUBING
(6') WITH INSULATION
FIGURE 3
operating pressure is 75 psi and the maximum water
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IDC 255 Progate Drive Thru Installation Manual
OPERATING
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Publication Number: 621057419INS
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