User manual SCOTSMAN CS60

[. . . ] CS60 INTRODUCTION This service manual covers the installation, operation, maintenance and service of this ice machine. Table of Contents INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 SPECIFICATIONS . FOR THE INSTALLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . FOR THE PLUMBER . INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INITIAL START UP . [. . . ] When moved to the ON position, it makes a circuit to the compressor. When moved to the OFF position, the other components will still operate. Water Pump The water pump operates during the freezing cycle only, pumping water through the spray nozzles into the inverted spray cups. Inlet Water Solenoid Valve The water solenoid valve, located in the back panel of the unit, is energized only during the harvest or cleaning cycles. When energized it allows a metered amount of water to flow into the machine (. 21 g. p. m. ) This water flows to the top of the evaporator and then down into the reservoir. Bin Thermostat Control The bin thermostat control body is located in front of the control box just beside the cube size control. The thermostat sensing tube is located in the ice storage bin on the left side wall where is automatically shuts the ice maker off when the bin is full and restarts when ice is removed. Factory settings are 1 degree C (36 degrees F) cut out and 4 degrees C (39 degrees F) cut in. It can be adjusted by turning the adjustment screw visible through the control box cover. Hot Gas Valve Assembly The hot gas valve assembly is comprised of two parts, the valve body and the coil. These parts are located on the discharge line of the compressor and are activated by the cube size control (harvest cycle). When the coil of the hot gas valve is energized, it magnetically lifts the plunger in the hot gas valve body. This allows hot refrigerant gas to by-pass the condenser and go directly to the evaporator. Spray Platform and Chute The spray system used on this unit is of the stationary type. The water is forced by the water pump into the platform chamber and sprayed into the inverted cup molds through a set of six spray nozzles. Fan Motor The fan motor is electrically connected through the cube size control and runs only during the freezing cycle. Hermetic Motor Compressor The compressor is a vapor pump, forcing refrigerant gas throughout the refrigeration system. January 1995 Page 7 CS60 COMPONENT LOCATION SPRAY PLATFORM EVAPORATOR RESERVOIR FILL TUBE WATER PUMP WATER RESERVOIR BIN LEVEL CONTROL TUBE BIN DRAIN BIN THERMOSTAT CONTROL BOX HOT GAS VALVE WATER INLET VALVE COMPRESSOR CUBE SIZE & ON/OFF CLEANING SWITCH January 1995 Page 8 CS60 HOW IT WORKS: WATER Freezing cycle The refrigeration process creates cold temperatures within the evaporator coils and removes heat from the water sprayed up into the inverted ice cube cups. When enough heat is removed, the water changes into ice, and forms where it is the coldest: in the ice cube cups. Because the solenoid valve is closed, the gas flows to the condenser, where heat is transferred from the refrigerant to the air passing through the condenser. The refrigerant then condenses into a high pressure liquid. From the condenser, the liquid refrigerant flows through the liquid line, and the liquid line filter-drier. After the filter drier, the liquid refrigerant enters the metering device, a capillary tube. [. . . ] Dismount bin thermostat from the control box 5. Pull bin thermostat capillary line from tube in ice storage bin. Remove complete control from ice machine. Replace with new control in reverse order of removal. Cube Size Control Tube. [. . . ]