Scotsman ACM 25 Service Manual page 7

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4) Plug the electric cable into the appropriate
socket. Make sure that the indicator on the control
knob is pointing to the "white dot". The machine
is now working and the first cooling cycle can
begin.
5) The first freezing cycle will last about 35
minutes. During this time, make sure that the
plastic curtain that covers the water spray system
hangs down loose and no excessive water is
passing through, make sure to eliminate
eventually noises and vibration sources.
6) After about 35 minutes of operation, the
first ice cubes harvest takes place.
7) During the harvest cycle, which lasts about
3 minutes, the hot gas, circulating through the
evaporator serpentine, defrosts the ice cubes up
to the point that they are released from their mold
cups and drop into the storage bin.
8) If the tem-
perature of the
room in which the
machine is place
is below 20°C, the
cubes will tend to
be partly hollo-
wed out (see fig.
on right).
If, on the other
hand, the room
temperature is
above 30°C the
cubes produced
will have a jagged
rim of ice around
the crown.
9) If it is thought necessary, the above
situations can be remedied by, in the first case,
turning the control knob indicator (as little or as
much as is required) to the left of the white
marker and, in the second case, turning the knob
to the right. It should, however, be remembered
that if the room temperature returns later to the
20 ÷ 30°C range, the knob indicator must once
again be turned to point to the white dot. (see fig.
below).
10) The ice maker will automatically stop when
the ice cubes in this storage bin compartment
cover the sensing bulb of the bin thermostat and
will automatically start when the same sensing
bulb will be cleared from the ice.
11) Remember to fill up the water reservoir
before the water level in it goes below the minimum
level line of the indicator.
In any case, if for some reason the machine is left
running for a short time without water, no serious
harm will be caused.
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