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Scotsman CU0415, Техническое учебное пособие


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Cleaning and Maintenance

Содержание CU0415

Страница 1: ...Technical Training CU0415 CU0715 CU0920 Essential Ice ...

Страница 2: ...Presentation Topics Introduction Installation Operation Cleaning Diagnostics Service ...

Страница 3: ...els Air cooled 15 inch wide 58 lb CU0415 Air cooled 15 inch wide 80 lb CU0715 Air cooled 20 inch wide 100 lb CU0920 Three electrical configurations 1 or 115 60 Hz 32 or 208 230 60 Hz 6 or 230 50 Hz Warranty 3 years parts and labor ...

Страница 4: ...Ice Type Medium cube full dice Inverted grid evaporator Dedicated spray jet per cube cell 45 cubes per cycle Cubes harvest as a unit ...

Страница 5: ...Evaporator Nickel Plated Copper Mounted inverted above spray platform ...

Страница 6: ...Refrigeration System R 134a Cap tube Air cooled only Air in the front and out the front Fan pressure control switch No access valves Common evaporator on all three ...

Страница 7: ...ter System Batch type single fill per cycle Inlet water solenoid valve 275 GPM On during harvest Standpipe in reservoir Water pump Off during harvest Spray platform Same parts on all models non electrical ...

Страница 8: ...Temperature initiated timed cycle Thermistor on suction line For freeze and harvest Controller Bin thermostat Opens on temperature fall Capillary tube in sensing tube in bin Thermistor in pump hose For anti slush mode ...

Страница 9: ...ble 02 4731 02 set of 4 Can be floor mounted Has bumpers on base to keep from damaging floor Kit available to make sealing to floor easier KUFM15 or KUFM20 Can fit under 34 high ADA counter 32 high w out legs including space for bumper or floor mounting kits ...

Страница 10: ...Kits Kits provide plastic glides and trim strips to attach to base in place of legs Fills in the half inch of space at the bottom Allow sealing to the floor Will fit under 34 inch ADA countertop height inch 31 inches ...

Страница 11: ......

Страница 12: ...n 1 8 inch at sides inch at top 4 inch minimum behind machine Will make ice at minimum but performance better with more clearance Electrical Supplied with power cord 115 60 NEMA 5 15 plug 208 230 60 14136 type cord and plug 230 50 cord w out plug ...

Страница 13: ...Installation Water and Drain all models Drain is FPT Must be vented ...

Страница 14: ...Installation Water Connection 115 60 inch OD plastic tubing routed out the back No fittings are supplied ...

Страница 15: ...Installation Water connection 208 230 60 or 230 50 Includes water supply hose Fitting supplied loose in bin Attaches to 3 8 male flare on back of unit Fitting ...

Страница 16: ...Component Location Water Pump Curtain Cube Deflector Hot Gas Valve Inlet Water Solenoid Valve Controller Water Inlet Evaporator Compressor Fan Motor and Blade Air Inlet ...

Страница 17: ...Pre Start Inspection Check freezing compartment Remove any shipping blocks and other materials Check Cube deflector snapped down Spray platform in place Curtain hanging free ...

Страница 18: ...Inspect Freezing Compartment Move curtain and check spray platform under cube deflector Jets point straight up Pull curtain down to its normal position Shown with cube deflector removed ...

Страница 19: ...Initial Start Up Turn water supply on MUST be on first Remove front panel Connect electrical power Switch master switch to ON ...

Страница 20: ...ermostat must be closed to supply power to controller Unit will start in Harvest mode Water flows in Compressor on Hot gas valve open Two minutes later freeze cycle begins Pump and fan ON Water and hot gas valves OFF ...

Страница 21: ...Controller Information Freeze Mode Light Timer Light Ice bridge and harvest time setting indicators ...

Страница 22: ...K1 K1 K1 K2 K2 ...

Страница 23: ... Free Standing CU0415 25 minutes at 70 50 38 minutes at 90 70 CU0715 17 minutes at 70 50 25 minutes at 90 70 CU0920 15 minutes at 70 50 18 minutes at 90 70 Note Cycle times will be longer when built into a cabinet ...

Страница 24: ...Time to initially fill bin 70 60 conditions to first shut off CU0415 13 hours CU0715 8 hours CU0920 9 hours Commonly restarts for more run hours after first shut off ...

Страница 25: ...Ice Bridge 3 16 ...

Страница 26: ...Adjustments Increase or Decrease Bridge Thickness Increase or Decrease Harvest Time ...

Страница 27: ...nd there will be a hollow part in the cube Harvest Time Must continue long enough to release the ice plus 10 to 20 seconds more Water fills during harvest short harvest may increase scale build up Add time if needed to reduce scale build up 90 seconds is suggested minimum time in typical water ...

Страница 28: ...Factory Settings Ice Bridge Lights on STEADY Ice Bridge Lights BLINKING Harvest Lights on STEADY Harvest Lights BLINKING CU0415 1 1 3 1 CU0715 2 0 3 1 CU0920 2 1 3 0 ...

Страница 29: ...e Settings 10 settings on 5 lights each 1 blinking is minimum 5 steady is maximum Steady light 2 Blinking light 1 Examples 3 lights on steady 6 3 lights steady 1 blinking 7 Adjust before timer light is on or wait till next cycle ...

Страница 30: ...minutes starts when evaporator thermistor temperature falls to preset point Harvest timer timer light on 20 seconds starts when evaporator thermistor temperature warms to preset point Minimum harvest time 35 seconds No maximum or minimum freeze time ...

Страница 31: ...nute harvest cycle adds water then freeze begins Fan off until discharge pressure builds to 150 PSIG Pump on until water temp falls to preset point then off one time that cycle for 30 seconds Freeze continues until a thermistor s resistance on suction line triggers controller timer timer light switches ON 7 minutes till harvest ...

Страница 32: ...le Pump off Fan off Hot gas valve on Inlet water solenoid valve on Cycle continues until suction line temperature warms to preset point triggers timer in controller to end the cycle Bin thermostat can shut unit off at any time ...

Страница 33: ...Cleaning and Maintenance ...

Страница 34: ...witch to OFF wait 1 minute then switch it to ON Manual harvest releases any ice on the evaporator Switch unit off discard all ice Drain reservoir by pulling the drain plug and then putting it back Mix 5 oz of Scotsman Clear 1 scale remover and 2 quarts of warm water ...

Страница 35: ...Reservoir Drain Plug ...

Страница 36: ...olution into the reservoir Move master switch to the Wash position Pump will be on Operate for 10 minutes or more then move switch to OFF Drain reservoir Remove spray platform inspect all jets clear any that are restricted ...

Страница 37: ...Spray Platform Inlet engages clip in reservoir pull forward to remove ...

Страница 38: ...Spray Platform Assembly ...

Страница 39: ... warm water Fill empty reservoir with sanitizer Move master switch to Wash for 2 minutes Drain reservoir into bin Thoroughly wash all interior surfaces of the bin bin door and freezing compartment with the sanitizer solution Fill reservoir with clean water switch to Wash for 1 minute drain reservoir ...

Страница 40: ...Maintenance and Cleaning Clean air cooled condenser Vacuum and brush dirt from fins ...

Страница 41: ...No water check inlet water solenoid valve Nothing operating check power to unit Nothing operating check bin thermostat Nothing operating check master switch position Nothing operating check transformer Nothing operating power to controller no lights on it Replace controller ...

Страница 42: ...pump not spraying water Check for water in reservoir Check drain plug for leaks Check for pump hose disconnected Check pump motor voltage If none and blue Freeze mode light is ON wait 30 seconds If still no voltage replace controller pump relay failure ...

Страница 43: ... and compressor are off Master switch in Wash position No ice pump spraying water compressor on fan motor not turning Fan motor open no power or stuck Fan pressure control open Should be closed at room temperatures over 70 F Opens at 100 closes at 150 PSIG ...

Страница 44: ...ing poor spray to evaporator Partial water fill in reservoir Spray platform leaking or jets restricted Check Clean spray platform No ice everything operating good spray to evaporator Too much water check inlet water solenoid valve for leak thru ...

Страница 45: ... leaks thru No ice everything operating No refrigeration check suction line temperature should begin to chill during freeze mode No ice in bin evaporator has ice on it No heat for harvest ice does not release Hot gas valve not opening Check inlet water solenoid valve if it is adding water there is power to the hot gas valve ...

Страница 46: ...e Very cold water supply increase harvest time Damaged evaporator check plating No ice compressor is off Compressor relay failure check current relay Compressor overload open Compressor overheated check refrigeration system for proper charge Compressor will not start check windings ...

Страница 47: ...d clean machine Lack of rinse water due to hot room temperature Adjust harvest time longer to drain more water Makes ice but they are blocks or shells Ice bridge wrong size Evaporator thermistor out of calibration Evaporator thermistor failure Poor contact of thermistor probe to suction line ...

Страница 48: ... degrees F 76 790 ohms If thermistor is out of range open or shorted controller operates on preset freeze and harvest times Signal of evaporator thermistor failure is all green lights on controller blink together Timed cycles may make ice too thick or too thin ...

Страница 49: ... off before bin is full check room temperature Adjust thermostat if room is below 60 degrees F Machine located over 2000 ft above sea level correct by making thermostat altitude adjustment Thermostat out of calibration replace Bin drain restricted Drain tubing vented Correct slope and size Flush or blow out bin drain ...

Страница 50: ...too long Air cooled condenser is dirty clean it Too much water inlet water valve leaks thru Air flow restricted Placed in closet or other very small room Room air too hot Capacity normally reduced in hot air temperatures or when built into a cabinet with minimal clearance ...

Страница 51: ...Replacement of Selected Components Curtain Remove top panel Remove evaporator cover Pull curtain up and out of its slot ...

Страница 52: ...Replacement of Selected Components Cube Deflector Lift up at reservoir edge twist slightly and pull out Snaps onto reservoir edge ...

Страница 53: ...Replacement of Selected Components Water Pump Disconnect power Remove top panel Remove pump cover Disconnect wires and pump hose Rotate pump CW and pull up and out ...

Страница 54: ... Components Bin Thermostat Disconnect power Remove front top and left side panels Pull capillary tube out of sensing tube Pull capillary tube into bottom of unit Disconnect wires at thermostat and remove thermostat from unit ...

Страница 55: ...er Solenoid Valve Shut water power off Remove top front back and right side panels Utility panel screws holding valve bracket to utility panel screws holding valve to bracket Push in collets to release tubing from valve Unplug wires remove valve ...

Страница 56: ...Cabinet Removal Remove front back side and top panels Remove door Drain water disconnect power and water Pull thermostat cap tube out Remove evaporator cover Remove ...

Страница 57: ...Cabinet Removal Remove screws holding evaporator to its frame Lift evaporator up and out of the way Support as needed ...

Страница 58: ...Cabinet Removal Disconnect wires from water pump Remove thermistor from pump hose Disconnect bin drain hose Disconnect water supply hose from evaporator platen ...

Страница 59: ...Cabinet Removal Lift bin with reservoir off the deck Remove deck cover Deck Cover ...

Страница 60: ...Cabinet Removed ...

Страница 61: ...Questions ...

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