User manual SCOTSMAN CMS1202

[. . . ] CMS1202 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. Table of Contents Specifications . Location & Assembly Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 4 5 6 7 8 10 11 12 15 17 19 20 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . For the Electrician For the Plumber Final Check List Initial Start Up . [. . . ] The control is adjustable so that the ice machine will maintain a certain height of ice. When set at FULL it will not allow the machine to fill the bin any closer to the ice machine than about 8", and it will not work if the distance to the bottom of the bin is greater than 8 feet. ICE/OFF/WASH SWITCH Because it uses sound waves, a slight "ticking" sound can be heard coming from the bottom of the machine. There are two parts to the control, the circuit board, and the level control switch. BIN ICE LEVEL SELECTOR SWITCH THE USER CAN SELECT THE AMOUNT OF ICE TO BE MAINTAINED IN THE BIN. SOUND WAVES FULL PARTIAL September 1993 Page 13 CMS1202 COMPONENT DESCRIPTION Water Inlet Solenoid Valve The water inlet solenoid valve fills the sump assembly with water. Extra water overflows out the overflow standpipe of the sump. This action fills and rinses the sump during each harvest cycle. Water Regulator Valve - Water Cooled Model The water regulator valve maintains a constant compressor head pressure, by regulating the amount of inlet water flow through the condenser on water cooled models. The valve operates through the refrigerant system high side pressure. Rotating the adjusting screw, located on top of the valve, can INCREASE or DECREASE the water flow through the water cooled condenser, which in turn, will DECREASE or INCREASE the compressor operating head pressure. When installing a replacement water regulator valve, be sure the replacement valve is installed with the arrow positioned in the direction of the water flow. Water Distribution System The water distribution system functions to evenly supply water to all cells of the evaporator plates. The water pump pumps water from the sump up the vertical tygon tube to the tee. From there water is channeled through the water manifold to the water distributors, above each evaporator plate, and from six holes within each distributor, water flows to the cells of each side of the evaporator plates. Gravity flow returns the unfrozen excess portion of water to the sump reservoir for recirculation. Hot Gas Solenoid Valve The hot gas solenoid valve opens only during the harvest cycle, to divert the hot discharge gas from the compressor, by passing the condenser and capillary tube, for direct flow to the evaporator plates to release ice cubes from the ice cube molds. Fan Pressure Control - Air-Cooled Models only. ln both freeze and harvest cycles, the fan pressure WATER control functions to DISTRIBUTORS maintain a minimum discharge pressure by cycling the fan on and off. Strainer OPTIONAL WATER FILTER HAND VALVE SUMP STANDPIPE A water strainer is located in the potable inlet water line before the water inlet solenoid valve. Clean the water strainer frequently. SUMP PUMP COMPONENT LOCATION September 1993 Page 14 DRAIN CAP CMS1202 CLEANING ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// A Scotsman Ice System represents a sizable investment of time and money in any company's business. In order to receive the best return for that investment, it MUST receive periodic maintenance. Maintenance and Cleaning should be scheduled at a minimum of twice per year. ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// CLEANING: ICEMAKER 7. Pour the cleaning solution into the reservoir until full. [. . . ] BE SURE the notches in the water manifold tubes properly engage the alignment keys in the tee. BE SURE the water distributor tube is securely fastened at the notch at both sides of the evaporator plate. Check identical attachment for the left water distributor tube and notch; also, that the distributor/manifold connections at the top center of each evaporator plate is snug against the top of the plate. REMOVAL OF THE CUBE SIZE CONTROL CUBE SIZE CONTROL 6. Remove screws and pull the capillary tube through the notch in the back of the control box. [. . . ]