Service manual

Ice Capacity
The rate of ice making is relatively fixed, it depends
upon the heat load and the ambient temperature
the machine is operating in. As either increase the
amount of ice made will decrease.
The machine will work to keep the ice bin full. A full
bin of ice is when the ice level is even with the top
of the front of the bin. When the ice level drops an
inch or more the machine will restart.
A capacity check will provide some idea of how
much ice is being made.
1. Operate the machine for 10 minutes until it is
stabilized.
2. Catch the ice as it is made for 15 minutes.
3. Weigh the ice and any melted water.
4. Multiply the weight from step 3 by 96 to get 24
hour capacity.
5. Compare to the chart below:
Note: Mineral scale build up inside the evaporator
will reduce the ice making rate, as will any lint or
dirt on the air cooled condenser or fan blade. All ice
making capacities listed by Scotsman are for clean,
new machines.
The ice storage bin is not refrigerated; it is an
insulated ice chest, so there is meltage. A
restricted drain or poorly operating drain pump will
allow water to puddle in the bin, increasing the ice
melt rate. A stopped up drain will cause the bin to
fill with water.
Refrigerant charge.
The charge is very small. Any leak will immediately
result in a loss of ice making capacity and
continued leaking will result in no ice being made.
The system is sealed, access must be by clamp on
valves, which must be removed after the repair is
completed.
Noise
Normal ice making produces very little noise; there
will be sound from the compressor, fan and auger
drive motor. If there is a drain pump it will cycle
occasionally too. If the machine is making an
unusual noise that might be a sign that it needs to
be cleaned of mineral build up.
May 2011
Page 12
SCN60
Service
90
o
F. Air, 70
o
F water 59 lb / 24 hours
70
o
F. Air, 50
o
F. water 87 lb /24 hours