SCN60
Service
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.
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.
5. Compare to the chart below:
90oF. Air, 70oF water | 59 lb / 24 hours |
70oF. Air, 50oF. water | 87 lb /24 hours |
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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.
May 2011
Page 12
