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6. Filling the Ice Water Bath
A. Remove the top panel and locate the filler hole in the top of the refrigeration deck.
B. Fill the water bath with cool water until it begins to trickle out of the overflow tube and into the drip tray.
Use tap water. DO NOT use distilled water as it's purity has very low electrical conductivity. This can
degrade performance of the electronic ice bank control.
C. Re-install the top panel.
7. Connecting Power Supply & Starting Refrigeration
A. Plug the power cord into a 115VAC 15 Amp grounded receptacle
B. Place the rocker switch and key switch, both located on the top panel, to the "on" position. Note that the
rocker switch controls power to the dispenser and the key switch controls the pumps and valves.
C. The Millennium forms an ice bank of approximately 25 lbs. (11.4 kg) in about 5 hours at a room
temperature of 75°F (24°C). Once the ice bank has grown to the proper size, the ice bank control will
shut down the refrigeration circuit.
D. The ice bank control operates the compressor and condenser fan motor to control the size of the ice
bank. The control board will not start or restart the compressor until after the compressor has been off
for at least 3 minutes to all refrigeration system pressure to equalize.
NOTE: It is normal to see water trickle from the overflow as the ice bank forms.
8. Electronic Control Board Function
An integrated circuit board and microprocessor are used to control the electrical functions of the
Millennium beverage dispenser. Functional features of the control board include:
• Ice bank control with compressor start-up protection
• LED diagnostics
Inputs to the control board include line power and the ice bank position sensor. Switched outputs from the
circuit board include the compressor, agitator motor and condenser fan motor (refer to electrical diagram in
reference section).
9. Ice Bank Control
The ice bank control operates the compressor and condenser fan motor to control the size of the ice bank.
The control board will not restart the compressor until after the compressor has been off for at least 3
minutes to allow the refrigeration system pressures to equalize.
10. LED Diagnostics
LED diagnostic lights are mounted on the control board to assist in troubleshooting. There is one green
LED and one red LED.
Green LED
© 2003-2013, IMI Cornelius Inc.
Figure 2.
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Millennium II 6000 Installation Manual
Red LED
Publication Number: 620919546INS
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