User manual SCOTSMAN CME650R

[. . . ] CME650R INTRODUCTION To the owner or user: This service manual is intended to provide you and the maintenance or service technician with the information needed to install, start up, clean, maintain and service this ice system. The CME650R uses HP62 as the refrigerant, and polyolester oil for compressor lubrication. Table of Contents INTRODUCTION . 5 FOR THE INSTALLER: Coupling Instructions . 12 COMPONENT DESCRIPTION: FREEZING CYCLE OPERATION . [. . . ] Tubing will become frosted at the top of the evaporator plate. Freezing time will range between 13 and 16 minutes. Longer time for temperatures above 70 degrees F. and shorter time required when temperatures are below 70-degrees F. Average complete cycle time is about 16 minutes. Cube Size Control FREEZE PORTION HARVEST PORTION FRONT VIEW OF TIMER MICROSWITCH ACTUATOR BUTTON CAM CONTROL BOX Master Switch Compressor Switch Timer Bin Thermostat April 1995 Page 15 CME650R INITIAL START UP 10. Check Cube Size To produce SMALLER sized ice cube: Locate cube size control knob, in the front of the control box. Rotate one eighth of a turn COUNTER Clockwise. Observe size of the ice in the next ice cube harvest and adjust in one eighth turn or less increments, until correct ice cube is achieved. To produce LARGER ice cube: Locate cube size control on the front of the control box Rotate the adjusting knob one eighth of a turn Clockwise. Observe size of ice cubes in the next cube harvest and adjust in one eighth turn or less increments, until correct ice cube size is achieved. The machine will have to harvest all of the cubes before it goes back into the freeze cycle. Increase the Harvest Time if there is less than 15 seconds of harvest time after the last cube has fallen into the bin. Decrease the Harvest Time if there is much more than 15 seconds of harvest time after the last cube has fallen into the bin. Note: Harvest time is dependent upon the water and air temperatures at the ice machine. Colder air and water will result in faster ice making, but longer harvest cycles. Do NOT adjust harvest time too short, as this will cause a freeze up of the evaporators. CONTROL BOX TOO SMALL JUST RIGHT CUBE SIZE DIAGRAM When the cubes are the correct size, they will be connected together vertically, and drop off in strips. Typical batch weight is 5. 5 lb. To Adjust Harvest Time: A. Loosen set screw holding the two halves of the cam together, and rotate the front half to increase or decrease the harvest portion of the cam (low part). Reconnect power and check the cube size after the next cycle (cube size may need adjustment). Replace control box cover and all cabinet panels and screws. CUBE SIZE 13. Check operation of the bin control by holding CONTROL ice on the bin control tube in the bin. The machine should shut off at the end of the harvest cycle. [. . . ] Use conservation minded service procedures: Close the valve and replace the caps when the · Refrain from checking refrigeration job is finished. The valve must be closed and pressures without reason. There are many the caps must be on or the valve will leak. ways to determine the proper operation of a Scotsman ice machine without using refrigerant gauges. [. . . ]