Cornelius CCM CCU manual How the CCM Ice Machine Works, How the Ice Machine Works, Page

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How the CCM Ice Machine Works

How the CCM Ice Machine Works

How the Ice Machine Works

A general description of how the CCM Series cubers works is given below. With the ICE/OFF/WASH switch in the ICE position, the compressor, water pump and condenser fan motor (when applicable) will energize starting the freeze cycle.

During the freeze cycle, water is circulated over the evaporator(s) where the ice cubes are formed. When the suction pressure has pulled down to the proper cut-in pressure of the timer initiate (pressure control), the contacts will close and energize the time delay module (timer). At this time, the cubes will be close to completion.

The remaining portion of the freeze cycle is determined by the timer setting. The timer is pre-set at the factory to achieve the proper ice bridge thickness but may need to be adjusted upon initial start-up, see Page 14 for timer adjustment.

Once the amount of time on the timer has passed, the control relay will be energized and the machine will enter harvest. Power is now supplied to the water purge valve, hot gas valve, and the harvest motor.

The water purge valve opens, and allows the water pump to purge the water remaining in the water trough, removing impurities and sediment. This allows the machine to produce clear ice cubes and keep mineral build up at a minimum.

The hot gas solenoid opens allowing hot gas to go directly to the evaporator, heating the evaporator and breaking the bond between the evaporator and the ice slab.

The harvest assist motor, which is also energized during harvest, turns a slip clutch, which pushes a probe against the back of the ice slab. Once the evaporator has reached approximately 40°F (4.5°F) in temperature, the slip clutch overcomes the bonding of the ice to the evaporator and pushes the slab of ice off of the evaporator and into the storage bin.

The clutch also actuates a switch that rides on the outer edge of the clutch. When the clutch completes one revolution, the switch is tripped and the machine enters the next freeze cycle.

When ice drops into a full bin during harvest, the splash curtain is held open which activates a bin switch shutting the machine off. When ice is removed from the bin, the splash curtain will close and the machine will come back on.

Note: The CCU Undercounter Series does not have a splash curtain. These models utilize a thermostatic bin control in place of a mechanical bin switch.

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Contents Installation, Start-upand Maintenance Manual Publication Number Revision Date SeptemberRevision A Nordic Ice MakerPage Keep this manual for future reference How To Use This ManualForward PageInstallation Guidelines Table of ContentsFreight Claim Procedure Start-UpProcedureVisible Loss or Damage Freight Claim ProcedureFreight Claims Important Inspect Promptly Concealed Loss or DamageModel Number Model and Serial Number FormatSample Data Plate Serial NumberAdjustments Installation Guidelines Installation GuidelinesElectrical Specifications Ambient Operating Temperaturesdispenser with the provided Installation GuidelinesAttach the ice machine to the bin or PageRemote Condenser Guidelines Remote Condenser InstallationAir Flow Installation GuidelinesRemote Condenser Guidelines PageElectrical and Plumbing Requirements ON-OFF-WASHSwitch is located in the control boxRemove the grill screws to access the control box PageElectrical and Plumbing Requirements ON-OFF-WASHSwitch is located in the control boxRemove the grill screws to access the control box PageElectrical and Plumbing Requirements Includes 50Hz. UnitsPage Includes 50Hz. And 3 Phase Units Electrical and Plumbing RequirementsPage Includes 50Hz. and 3 Phase Units Electrical and Plumbing RequirementsPage Electrical and Plumbing Requirements PageElectrical and Plumbing Requirements PageHow the CCM Ice Machine Works How the Ice Machine WorksPage Start-UpProcedure Start-UpProcedure Bridge Thickness and Timer AdjustmentPage Undercounter Models Start-UpProcedure Bin Control OperationBin Control Adjustment PageGeneral Maintenance General Maintenance ProcedurePage Cleaning Procedure Ice Machine Cleaning and Sanitizing InstructionsPage Cleaning Agent Cabinet Care Cleaning stainless steelCleaning Activity Method of ApplicationWinterizing Procedure Winterizing Procedures PageService History Service HistoryPage