User manual SCOTSMAN CME2006R

[. . . ] CME2006R Introduction This product manual contains the information needed for the setup, installation, initial start up, sanitation and maintenance of this ice machine. This machine incorporates advanced technology, including a scroll compressor. Be certain that the information applies to the model in question. If no model is listed, the information applies to all models. [. . . ] If it does not, the inlet water valve will open again to fill it. If, after restarting, the water level does not drop, it is assumed that there is a water pump problem and the machine Shuts Down on a Water Error. If the water level does "measure up" the water pump is restarted and the System Controller then measures how long it takes to lower the water level. If the water level does not fall, the machine Shuts Down on a Water Error. Once per freeze cycle the machine will shut off the water pump. It only does this when the water temperature reaches a preset minimum. The pump will only be off for a few seconds. · · · · · Water level = below harvest position Water inlet valve will be off Water pump will be ON Compressor will be ON Hot gas valve will be off At this point Harvest begins and the System Controller switches the Harvest indicator light ON. Restarts: If the machine is restarting after it has shut off because the bin was full, the first freeze cycle sequence is like this: 1. Water valve opens to fill the reservoir. Note: If there is a power interruption, after power is restored the machine will restart, go thru a brief Freeze cycle and go thru a 6 minute Harvest cycle. Error Restarts: The machine automatically attempts to restart 50 minutes after a shut down. If another problem occurs in the next cycle, the machine will attempt one more restart. If another problem occurs in the next cycle, the machine will shut off and must be manually reset. July 1998 Page 24 CME2006R Technicians Only: Harvest Cycle Sequence & Other Notes Harvest The Purge Valve will be open for 74 seconds. The water pump shuts off, it will restart before 74 seconds, the restart time is based on the Purge Level Setting. The pump restarts and pumps water out of the reservoir until the purge valve closes. The inlet water valve will stay on for about 30 seconds to add enough water to assist with harvest. The Hot Gas Valve will be open for the entire length of the Harvest Cycle. The Harvest Bypass Valve will open from 12 to 32 seconds at the start of the Harvest Cycle, the shorter time is for low discharge temperatures and longer time is for high discharge temperatures. During the Harvest Cycle, ice will be falling from the evaporators and between the ice sensor's photo-electric eyes. The System Controller monitors how long the ice falls and uses that time to determine the next harvest cycle's length. The first Harvest after a restart will take about 6 minutes to establish a base line, then the time it took to release that ice is used to determine the next harvest cycle's length. If no cubes fall (or are sensed) by the end of the Maximum Harvest Time, the machine senses a Refrigeration error. [. . . ] Open the cylinder's valve and purge the hose to the manifold. Close the low side service access valve. Open the discharge side manifold valve and weigh in the name plate charge. After the charge is weighed in, wait a few minutes and re-check the scale. [. . . ]