Selected Water Components - Scotsman UC2024 Series Service Manual

UC2024 and UC2724 Service Manual

Selected Water Components

Ice sensing plate and flap.
The ice sensing plate or ice chute is positioned at the base of
the evaporator and over the sump. It is mounted at an angle
that, during freeze, directs water into the open sensing flap or,
during harvest, directs ice towards the ice storage bin.
The ice sensing flap is held open by a counter-balancing
weight. The flap has a magnet attached to an arm on the right
end. An ice sensing switch is near to the magnet but normally
not activated by it. When the flap is moved by the weight of
ice, the arm and magnet also move, bringing the magnet
close enough to activate the switch. The repositioned flap and
magnet can either trigger the end of harvest or shut down on
bin full.
Ice sensing pate switch
The sensing plate switch is on the right side of the upper
cabinet. It is triggered by the magnet in the ice sensing flap.
Spray bar
The spray bar, or water distributor, is located at the top of the
evaporator. It is held in by snap catches on each end. During
the freeze cycle the water pump forces water up to the back of
the water distributor, where is flows under pressure thru holes
in the distributor. Water from it flows down over the evaporator
plate.
Evaporator
The evaporator is a refrigerated surface that forms the ice into
a cube like shape. The evaporator is vertical, metal and framed
by injection molded plastic. It contains a metal grid that gives
the cubes their shape and size. Water flows over it during most
of the freeze cycle.
Sump
The sump contains the water charge for every batch of ice. It
fills one time per cycle. It also contains an overflow standpipe,
which limits the water level and drains excess water.
Inlet water solenoid valve
The inlet water solenoid valve, located at the back of the unit,
opens during harvest to refill the sump. It is a flow control
valve, limiting the gpm flow into the machine. Service of it
requires removal of the back panel.
Water pump
The water pump is located at the back of the machine. It is on
throughout the freeze cycle, except for a few seconds early in
the cycle. It is off during harvest. Service of it requires removal
of the back panel.
November 2019
Page 17