Principle Of Operation (How It Works); Water Circuit - Scotsman 05566 Service Manual

WATER CIRCUIT

The water enter in the machine through the
water inlet fitting which incorporates a strainer -
located at the rear side of the cabinet - then it
goes to the water reservoir flowing through a
float valve.
NOTE. The presence of the water in the float
reservoir is detected by a system of two
sensors which operates in conjunction with
the P.C. Board. The two sensors use the
water as a conductor to maintain a low
voltage current flow between them. In case
the water used is very soft (de-mineralized)
or the float reservoir gets empty the current
flow between the sensors become so weak
or is no longer maintained that, as
consequence, the P.C. Board shutoff the
flaker operation with the simultaneous
glowing of the YELLOW LED signalling
"Shortage of water".
The float reservoir is positioned at the side of the
freezing at such an height to be able to maintain
a constant water level. The water flows from the
reservoir into the bottom inlet of the freezer to
sorround the stainless steel auger which is
vertically fitted in the center of the freezer.
In the freezer the incoming water gets chilled into
soft (slush) ice which is moved upward by the
rotating action of the auger. The auger rotates
counter-clockwise within the freezer powered by
a direct drive gear motor and carries the ice
upward along the refrigerated freezer inner walls
and by doing so the ice gets progressively thicker
and harder.
The ice, being costantly lifted up, meet the teeth
of the ice breaker which is fitted on the top end of
the auger, where it gets compacted, cracked and
forced to change from vertical into horizontal
motion to be discharged out, through the ice
spout and chute, into the storage bin.
MF 66
FLOAT TANK
FLOAT VALVE
FREEZER
WATER
FEED LINE
PRINCIPLE OF OPERATION
MF 26-36
MF 46-56
FLOAT TANK
FLOAT VALVE
FREEZER
FREEZER WATER
FEED LINE
FLOAT TANK ICE SPOUT
FLOAT VALVE
FREEZER
FREEZER
WATER
FEED LINE
ICE SPOUT
FREEZER
Page 21
ICE SPOUT