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NU130

Nugget Ice Machine

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Содержание NU130

Страница 1: ...NU130 Nugget Ice Machine ...

Страница 2: ...NU130 Cabinet 15 inch wide cabinet Air cooled only Can be built in air in and out the front Service panel on side Stainless Steel Listed for outdoor use ...

Страница 3: ...mpared to cube ice machines No spray pump No spray jets No hot gas valve No inlet water solenoid valve No Freeze or Harvest Cycles But it does have Continuous flow steady state system Auger Gear reducer Float valve ...

Страница 4: ...In the Bin Ice Outlet Chute Bin Level Sensor Dataplate ...

Страница 5: ...In the Bin Drain Condensate Drain Hose Scoop Holder ...

Страница 6: ...Cabinet Air in and out the front Front Service Panel Kickplate Access to condenser ...

Страница 7: ...Side Service Panel Provides access to bin drain drain pump when used fan motor and compressor ...

Страница 8: ...Reverse Door Swing Remove top pin Lift door off bottom pin Remove hole plugs Switch hinges top to bottom side to side Install hole plugs Reattach door ...

Страница 9: ...Installation Power 115 volt model with power cord Water OD copper tube on back compression fitting ships in attached bag Drain Gravity model Pump model or kit A39462 021 ...

Страница 10: ...Electrical 115 volt 60 Hz power Unit must be on separate 15 amp circuit Outlet should be accessible or must use circuit breaker to shut off power during service No extension cords permitted ...

Страница 11: ...er Supply Connection Connection on back Compression fitting shipped with unit 20 to 80 lb pressure Coil inlet tubing to this fitting when unit built in Back flow prevention is by air gap at the float valve ...

Страница 12: ...must not trap water Vent and use rigid tubing outside of cabinet Route and slope to drain Maintain code air gap Drain Pump Hose pre connected Route to drain Maintain code air gaps Pump will activate when water backs up into inlet hose Conversion kit available ...

Страница 13: ...Control Panel Status Light Check Water Light Time to Clean Indictor Light Clean Reset On Off ...

Страница 14: ...Connect power Panel lights blink and go out Turn on water supply Push On Off button Ice making light switches ON Compressor Fan Motor and Auger Drive Motor operate In about 10 minutes ice will begin to fall into the bin ...

Страница 15: ...Control Panel Ice Making Mode Green Ice Making Light Indicates ready to make ice Does not indicate operation bin full or empty ...

Страница 16: ...Control Panel Check Water RedLight Indicates Lack of Water to Machine No ice will be made while light is on Restarts automatically when water restored ...

Страница 17: ...Control Panel Time to Clean Yellow Light On after 6 months of power up time Indicates the machine needs to be cleaned Scale removed Condenser cleaned Unit sanitized ...

Страница 18: ...Ice Making Components Evaporator Vertical stainless steel refrigerated tube Refrigeration coil wrapped on outside of tube 12 internal grooves Guide ice vertically ...

Страница 19: ...Ice Making Components Auger Double spiral solid stainless steel auger Water Seal ...

Страница 20: ...Ice Making Components Breaker Head Combination extruding head and bearing retainer ...

Страница 21: ...Ice Making Components Gear Reducer Auger drive motor drives auger at 11 RPM CCW Auger engaged by fitting into hollow output shaft Square Drive ...

Страница 22: ...Top of Gear Reducer Hollow shaft Water shed rotates with shaft Condensation relief slots Mounting shelf acts as drain pan No vent Water Shed ...

Страница 23: ...sformer 12 volt secondary Controller Operates auger motor and compressor fan motor Connected to water and ice sensors Control Panel has lights and switches Water Level Sensor water conductivity Ice Level Sensor ultrasonic ...

Страница 24: ...Control Box 12 v Transformer Bin Control Transducer Bin Control Connection 12 v Power Supply Connection High Voltage Connection Water Level Sensor Connection Control Panel Connection ...

Страница 25: ...Sensor Ultrasonic System Emits high frequency sound Controller measures time to return signal Time tells controller the distance from sensor to ice More time lower ice level Either on or off not adjustable ...

Страница 26: ...Water Reservoir Water Level Sensor Valve Lever Valve Float Bulb ...

Страница 27: ...Refrigeration System R 134a 4 5 oz charge Cap tube metering device Steady state operation System pressures steady while making ice No access valves do not attach long hoses ...

Страница 28: ...How It Works Refrigeration Schematic Condenser Compressor Capillary Tube Evaporator Gear Reducer Liquid Line Suction Line Heat Exchanger ...

Страница 29: ...How it Works Water Schematic Water Level Water Inlet Outlet to Evaporator Drain Water Level Sensor ...

Страница 30: ...Components Assembled Mounting Shelf ...

Страница 31: ...Evaporator to Gear Reducer Adapter Gear Reducer Evaporator to Gear Reducer Fasteners Condensation Relief Slot ...

Страница 32: ...Output Shaft Area Water Shed Output Shaft ...

Страница 33: ...Auger Engagement Shown without adapter Adapter ...

Страница 34: ...Normal Full Bin Ice Level ...

Страница 35: ...Maintenance Air cooled condenser Remove service panel Remove kickplate Vacuum condenser ...

Страница 36: ...ce Scale Removal Hard water scale will form on the ice making surfaces Reduces capacity Increases loads Increases noise Scale is commonly limestone Must be dissolved by food grade acid Ice machine scale remover ...

Страница 37: ...Scale Removal Begin Shut machine off Remove ice Remove back panel of bin Two thumbscrews ...

Страница 38: ...Scale Removal 2 Locate water reservoir Push tab and remove cover ...

Страница 39: ...Scale Removal 3 Push Blue Float Valve On Off Lever Up Shuts water off ...

Страница 40: ...Scale Removal 4 Pull drain plug and drain water system Return drain plug ...

Страница 41: ...scale remover solution Need 16 ounces of solution Will need squirt bottle for built in situations Squirt bottle available premixed 19 0664 01 Or Mix Scotsman Clear 1 Scale remover with water Ratio 2 5 ounces to 32 ounces water ...

Страница 42: ...Scale Removal 6 Add scale remover solution to water reservoir until it is full About 8 ounces ...

Страница 43: ...Scale Removal 7 Push and Hold BOTH On Off and Clean buttons for 5 seconds ...

Страница 44: ...es for 10 minutes Compressor turns on ice is made for 40 minutes Must be present to add scale remover solution while unit is making ice After all 16 ounces of solution is used up push the Float Valve On Off lever Down to switch the water back on ...

Страница 45: ...sh After machine shuts off Shut water off Drain water system Re plug drain Switch water back on Rinse bin drain Wipe up loose scale from gear reducer Return bin back panel Push in at bottom to snap in Switch unit back on ...

Страница 46: ...Top Bearing Check Check for Gap 015 Pin Gage Pin must not slide between auger shaft and inside of bearing ...

Страница 47: ...Diagnostics Simple to Complex No Ice no response at control panel Check power to transformer primary ...

Страница 48: ...No Power to Transformer Power Disconnected Pump model open safety pressure switch Water in bin pump or drain failure No water in bin switch failure ...

Страница 49: ...mer OK Check secondary for 12 volts AC If OK check control panel Unplug ribbon cable at J6 and check switches Dot is pin 1 Pin 2 3 On Off Switch Pin 4 3 Clean Reset Switch About 10 ohms when activating a button and Open when not pressing a button Pin 1 ...

Страница 50: ...No Ice no control panel response Control Panel OK Check power to controller 12 volts to connection If OK switch power on and off if still no response replace controller ...

Страница 51: ...No Ice no water light is ON Check water supply Check float valve Check water level sensor ...

Страница 52: ...No Ice Water Check Is float down and no water If yes and water is not flowing in valve is plugged or not working If no is shut off lever up If float is up and shut off lever is down valve is not working ...

Страница 53: ...No Ice Water Check Check Water Light is On but the reservoir has water Water is too clean Must be 10 microSiemens cm or more of conductivity Water sensor wire disconnected Controller cannot read sensor ...

Страница 54: ...No Ice No Water Light is ON Water Sensor Check Unplug sensor at J7 Short center and right pins together Light should go out ...

Страница 55: ...aking Light is ON Two minute delay after power reset Or in restart window 60 second restart attempt time Wait or reset controller to check Press Off On to stop and again to start If does not start check bin control ...

Страница 56: ...No Ice Ice Making Light is ON Bin Control Check Locate J2 bin stat Short pins together Unit should start If yes replace bin control sensor If no replace controller ...

Страница 57: ...but Auger motor is operating Check for voltage Bk W at controller controller s compressor relay may have failed Fan blade not turning check for free action of fan blade check motor windings Compressor off may have overheated if fan not turning Check starting components and compressor windings ...

Страница 58: ... ice sweep is turning condenser is clean Possible refrigerant leak Possible compressor valve failure Add temporary access valve to process tube of compressor to check suction pressure MUST use short hose 6 or charge will be affected Suction pressure should be about 8 10 PSIG ...

Страница 59: ...rmal is 5 to 6 amps Lights will blink once every 2 seconds 4 minutes to restart Auger Motor Low or No Amp Draw Lights will blink twice every 2 seconds 20 minutes to restart motor cool down time Controller Failure Lights will blink once every 10 seconds ...

Страница 60: ... Top panel access is required for many components including Gear reducer auger breaker water seal reservoir controller transformer bin control Shut off and Drain water from evaporator prior to service of any part of it ...

Страница 61: ...Removal and Replacement Ice making components Begin with the ice sweep Rotate CCW to remove Ice Sweep ...

Страница 62: ...Removal and Replacement Remove back panel of bin Lift ice chute up and off evaporator Ice Chute ...

Страница 63: ...Removal and Replacement Remove 4 allen head bolts and lift breaker off evaporator ...

Страница 64: ...Removal and Replacement Breaker Bearing Bearing is non metallic and does not require any lubrication Bearing can be replaced by driving it out and pushing another in Bearing Breaker w out bearing ...

Страница 65: ...Removal and Replacement Lift auger out of evaporator Disconnect drain hose from evaporator ...

Страница 66: ...Removing Stuck Auger 5 16 18 Hex cap screw Flat Washer Shim with hex nuts Shim breaker tighten cap screw to lift auger Spacer ...

Страница 67: ...oval and Replacement Separate Evaporator from Gear Reducer Disconnect electrical harness from auger motor Remove 4 phillips screws holding gear reducer mounting plate to shelf Suggest using 16 Screwdriver ...

Страница 68: ...Removal and Replacement CAREFULLY lift gear reducer evaporator up Rest on back wall Remove 4 allen head screws holding evaporator to adapter ...

Страница 69: ...Removal and Replacement Separate Evaporator from Gear Reducer Remove water seal from evaporator Water Seal ...

Страница 70: ...Removal and Replacement Water Seal Stationary Half Rotating Half Mating Sealing Surfaces ...

Страница 71: ...Removal and Replacement Water Seal Rotating Half on Auger Remove seal ring Clean auger Add sealant to auger Install new seal Rubber side up Wet rubber Push onto auger Do NOT touch mating surfaces ...

Страница 72: ...Removal and Replacement Water Seal Stationary Half Wet outside edge Push into evaporator tube Stop when flush with end of tube Adapter will push seal to proper depth as shown ...

Страница 73: ...Removal and Replacement IF replacing gear reducer be sure not to overtighten mounting bolts ...

Страница 74: ...e evaporator tube onto gear reducer Adapter will position water seal to correct depth Secure with the original 4 allen head screws Reattach assembly to shelf Install auger into evaporator tube Reattach breaker to top of evaporator ...

Страница 75: ... Remove side service panel front service panel and kickplate Remove back panel Remove screws under side service panel Remove 2 screws at back bottom corners Loosen 2 screws at front bottom corners Tip cabinet forward Support with 11 inch prop ...

Страница 76: ...Compressor Support Prop ...

Страница 77: ...Summary NU130 is a continuous flow ice machine Ice form is chewable Nugget 15 inch cabinet Air cooled Pump or Gravity Drain R 134a ...

Страница 78: ......

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