User manual SCOTSMAN CS55

[. . . ] CS55 INTRODUCTION To the owner or user: The service manual you are reading is intended to provide you, and the maintenance or service technican, with the information needed to install, start up, clean and service this ice system. Table of Contents SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1 FOR THE INSTALLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2 FOR THE PLUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The refrigerant then temperature vapor, flows into the condenses into a high pressure liquid. accumulator, which traps excess liquid refrigerant. The vapor, now primarily a gas, goes through the suction line tube to the compressor where the cycle is repeated. EVAPORATOR ACCUMULATOR CAPILLARY TUBE SUCTION LINE DISCHARGE LINE CONDENSER LIQUID LINE FILTER-DRIER COMPRESSOR STRAINER December 1987 Page 9 CS55 HOW IT WORKS: REFRIGERATION HARVEST CYCLE the refrigerant gas follows the path of least (When the cubes are released) resistance and flows through the tubing The ice cubes have been formed in an from the hot gas valve to the evaporator, inverted mold that was refrigerated. Now the refrigeration system will change to At the evaporator, the high temperature warm the cube mold and release the cubes. gases are cooled by the cold temperatures The process begins at the compressor. of the cube mold, and condense into liquid, There, refrigerant vapor is compressed and transferring heat to the mold which warms flows from the compressor through the up and releases the cubes. discharge line as a high temperature, high The refrigerant, now a low pressure, low pressure gas. Before the gas gets to the temperature vapor, flows into the condenser, it goes through a strainer, the accumulator, which traps excess liquid strainer outlet is connected to two tubes, refrigerant. The vapor, now primarily a gas, one of which leads to an electric valve, the goes through the suction line tube to the hot gas solenoid. When this valve opens, compressor where the cycle is repeated. EVAPORATOR ACCUMULATOR CAPILLARY TUBE SUCTION LINE DISCHARGE LINE CONDENSER LIQUID LINE FILTER-DRIER COMPRESSOR STRAINER CS55 OPERATION & ADJUSTMENT: OPERATING CHARACTERISITCS The information shown below covers a wide range of air and water temperatures. It is intended as a guideline only, and is based on data compiled from NEW CLEAN units. Allow a variation from each end of the range given. Refrigeration system pressures: High Side (discharge) B. Freeze cycle time. . . . . . . . . . . . . . . 15-30 minutes End of Freeze cycle . . . . . . . . . . . Defrost cycle time . . . . . . . . . . . . . . 2- 3 minutes Harvest cycle (maximum) . . Compressor amps Low side (suction) Freeze cycle . . . . . . . . . . . . . . . . . . . . . . . 3. 3 to 3. 5 End of Freeze cycle . . . . . . . . . . . 3-5psig Harvest cycle . . . . . . . . . . . . . . . . . . . . . . 6. 3 to 6. 7 Harvest cycle (maximum) . . 60-75 psig ADJUSTMENT OF THE CUBE SIZE: Adjust only when cubes are too big or small. To increse the size, turn knob 1/8 turn clockwise. To make the cubes smaller, turn the knob 1/8 turn counterclockwise. Observe the size of the cubes in the next two harvest cycles, if more adjustment is needed, continue adjustments until the correct size is obtained. CORRECT SIZE ADJUSTMENT OF THE BIN THERMOSTAT CONTROL Adjust the bin thermostat when the ice maker turns off too soon (ice level low) or when it turns off too late (ice storage bin overfills. ) To increase the ice level in the storage bin: Rotate the bin thermostat adjustment screw (located under front panel on control box cover) clockwise one eight turn at a time until the ice level that the machine maintains is correct. To decrease the ice level in the storage bin: Rotate the bin thermostat adjustment screw counterclockwise one eight turn at a time until the ice level is correct. December, 1987 Page 11 TOO SMALL, LITTLE OR NO ICE IN THE CENTER OF THE CUBE. TOO BIG, THICK BULGE OF SOLID ICE ON THE END. CS55 MAINTENANCE AND CLEANING A Scotsman Ice System represents a sizable investment of time and money in any company's business. [. . . ] Insert capillary tube on new thermostat into tube holder, be sure that the end caps are in place. Reverse the removal procedures to reinstall the cube size control. Refrigeration System Any time the refrigeration system is CAP, SEAL WITH FOOD GRADE SEALANT EVAPORATOR CUBE SIZE CONTROL Cube Size Control 1. Unplug the icemaker to disconnect electrical power. [. . . ]