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Cornelius Ice Makers Training Manual

POPULAR APPLICATIONS

Because of their unique form of ice and their extremely compact size, the Cornelius/Wilshire ice maker

has a wide range of popular applications. The IMD model line has found wide acceptance in the conve-

nience store market, where it provides a compact package with no need for the counter person to refill

the ice bin. The U.S. Navy has found the IMD to be an excellent choice for its on board food service

requirements and other applications including hospitals, cafeterias, and nursing stations.

The WCC/WCF series is also being used in restaurants and the meat packing industry. The WCF series

has met with success because of the particularly high quality of the flake ice it produces.

Because of the chewable nature of the Chunklet ice produced by the IMD and WCC ice makers, the ice

has been very popular with consumers wherever it is available.

PRINCIPLES OF EXTRUDED ICE MAKING

The Wilshire ice maker creates ice in a process called extrusion. The ice is frozen to an evaporator wall

until it grows thick enough to harvest. At that point the ice is shaved from the wall by an auger and carried

upward toward the extruding head. The extruding head is a finned device that forms or compresses the

ice into its familiar chunklet shape. As the ice is compressed by the head, whatever remaining water

there is on the surface of the ice will be squeezed away leaving a uniformly shaped chunk of ice. The ice

made in this process is soft and edible, yet resists bridging in ice bins. Automatic agitation circuits in cold

plate units or other dispensers should be disabled to prevent the breakdown of the ice.

FLAKE VS CHUNKLET

The WCC and WCF ice makers are virtually the same machine except for the extruding head and bin

control bracket. The primary difference is the amount of compression exerted by the extruding head on

the ice. This is comparable to going outside on a snowy day and scooping up a handful of snow. If the

snow is tossed into the air without compacting it, it will break apart quickly. If the snow is packed into a

ball, it will retain its shape even after striking the ground. The chunklet extruding head in the WCC has a

sharp bend at the top of the channel where the ice is formed. As the ice comes to the top of the head it

must make a sharp turn outward from the head. This bend causes just enough resistance to the upward

flow of the ice to be compacted into a chunklet of ice.

The WCF head bend is very gradual and very little ice compacting occurs. Just enough pressure is

applied for any excess water to be extracted to create a fluffy dry form of true flake ice.

Users of the Cornelius Wilshire bin top ice maker are pleased to know that any WCC can be converted

into a WCF, or the reverse, in just a few minutes. Simply turn off the ice maker and its water supply,

remove the top panel and the top of the auger assembly dispense tray. Pull the auger from the evapora-

tor and disassemble it. Replace the head with the opposite head and restore the parts, power and water

supply and manufacture the preferred type of ice.

NOTE: The IMD Ice Maker/Dispenser cannot be equipped with a flake head. Flake ice will not work

in any dispenser.

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Cornelius 500-Series Informations techniques Page 6