General operation – Ice-O-Matic EMF Series User Manual
Page 14

Flake Ice Machines
General Information
Page
A12
 
General Operation 
A general description of the flake ice machine operation is given below. The remainder of the 
manual provides more detail about the components and systems. 
 
Water enters a reservoir through the float valve and is gravity fed into the evaporator barrel 
through an opening in the bottom of the barrel. Water fills the evaporator to the same level 
as the water in the reservoir. A float valve, which stops the flow of water into the reservoir 
when the reservoir becomes full, maintains this water level. 
 
When the ON/OFF switch is turned on or when the bin control closes, the auger motor 
energizes. The compressor is delayed for 2 to 4 minutes. After the compressor delay period, 
the condenser fan motor (air cooled machines only) and compressor start and the 
temperature of the evaporator barrel drops. The water in the evaporator freezes to the inner 
walls of the evaporator 
barrel. 
A belt driven gear reducer 
continuously turns the 
auger inside the 
evaporator. As the auger 
turns, it pushes the ice 
upward and forces it out of 
the top of the barrel, 
through the delivery chute, 
and into the storage bin. 
As ice is pushed out 
through to top of the 
evaporator, make-up 
water enters the bottom of 
the evaporator. 
Evaporator
Gear Reducer
Float
V-Belt
Auger Motor
