Related Manuals for Scotsman Eclipse CME686
Summary of Contents for Scotsman Eclipse CME686
- Page 1 Eclipse Technical Training Eclipse Technical Training • CME686 • CME810 • CP686 • CP886 • CP1086...
- Page 2 In This Presentation In This Presentation • What Eclipse is • Components and their functions • Installation • Operation • Maintenance • Service Diagnosis...
- Page 3 The Eclipse System The Eclipse System • The remote system is made up of three parts: – Ice Making Section or Head Unit - 115 volt – Compressor Package - 208-230 volt – Condenser - 208-230 volt • Flexible Modular System –...
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Page 4: Ice Making Section
Ice Making Section Ice Making Section • CME686 or CME810 16.5 22” – Remote Low Side • 22” wide by 16.5” deep – Three evaporators – Three TXVs – Three check valves – CM technology • Water and Control Systems •... - Page 5 Ice Making Section Ice Making Section Vapor Liquid • Refrigerant Line Suction Connections – Vapor – Liquid – Suction • All on right side – Designed for Drive-Up Window Applications...
- Page 6 Ice Making Section Ice Making Section • Ice making compartment • Three evaporators – Circuited in parallel – No braze joints in freezing compartment – Access from the left side or top...
- Page 7 Vapor Inlet Valve Vapor Inlet Valve • Purpose: Opens during harvest to allow vapor to enter the evaporators • 24 volt coil • Different port size between CME686 and CME810...
- Page 8 Three TXVs Three TXVs • Three internally equalized valves • Purpose: Control individual evaporator superheats – One valve per plate – Promotes even plate-to-plate ice distribution...
- Page 9 Three Check Valves Three Check Valves • Check valves keep each TXV’s refrigeration flow directed to a single evaporator – Eliminates cross- flow during freeze cycle – Each TXV outlet must flow to one evaporator...
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Page 10: Water Pump
Water Pump Water Pump • 115 volt pump • Same for both CME686 and CME810 • Pedestal type • Pump motor separated from reservoir – Keeps motor drier – Motor cap keeps condensation off motor... - Page 11 Controller Controller ™ • AutoIQplus • Uses sensors for – ice harvest, – bin full indications – water reservoir temperature – water level • Controls freeze and harvest cycles...
- Page 12 CME Electrical Box CME Electrical Box • Transformer 115 to 24, 85 VA • Purge valve timer • Control wire connection nearby – Wire routes to compressor package – Controls contactor and solenoid valves Control Wire Connection...
- Page 13 Inspection Cover Inspection Cover • Provides access when left and right side access is limited • Access to: – cascading shield – water trough – ice sensors • Also covers cascading shield fastener...
- Page 14 Cascading Shield Cascading Shield • Removal begins with removal of the inspection cover • Then remove the one retaining screw Cascading Shield...
- Page 15 Cascading Shield Cascading Shield...
- Page 16 Evaporator Covers Evaporator Covers...
- Page 17 Freezing Compartment Freezing Compartment Water Trough Cascading Shield...
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Page 18: Temperature Sensors
Temperature Sensors Temperature Sensors Liquid Line Water Temp Sensor... -
Page 19: Inlet Water Valve
Inlet Water Valve Inlet Water Valve • Located in right front corner of unit • 1.25 GPM valve – Same one as on CME256, CME506 and many others • Opens to add water and fill reservoir – Adds water during harvest –... -
Page 20: Purge Valve
Purge Valve Purge Valve • Located in the front of the unit • 115 volt coil • Opens to drain the reservoir during harvest • Controlled by purge valve timer... - Page 21 Ice Sensors Ice Sensors • Sensing position 3” below base • Control position designed for dispenser 3” applications – Also works well on bins • Maximizes fill without overfilling...
- Page 22 Compressor Package Compressor Package • Three models – CP686 – CP886 – CP1086...
- Page 23 CP Unit CP Unit Condenser Bypass Valve Headmaster Low Side Access Valve Receiver CPR Valve High Pressure Cut Out - Auto Reset...
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Page 24: Crankcase Pressure Regulator
Crankcase Pressure Regulator Crankcase Pressure Regulato • CPR valve restricts compressor dome pressure during harvest – 55 to 60 PSIG – Pre-set - don’t adjust • Low Side Access valve has evaporator pressure during freeze, but not during harvest... - Page 25 Condenser Bypass Valve Condenser Bypass Valve • Normally Closed, opens during harvest • Bypasses condenser coil and directs discharge gas to vapor line • Ported valve - same one as CME2006...
- Page 26 Headmaster Headmaster • Maintains discharge pressure during freeze • Active at any temp below 70 – Rated at 217 PSIG, freeze cycle pressure may be between 220 and 230 during cold ambient operation...
- Page 27 Liquid Inlet Valve Liquid Inlet Valve • Normally Open, closes during harvest • Controls liquid flow into receiver • Isolates refrigerant in condenser during harvest • Improves cycle time...
- Page 28 Receiver Receiver • Shipped with system charge • Three ports – Liquid inlet – Liquid outlet Liqui – Vapor outlet d Out Liquid Inlet Vapor...
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Page 29: Electrical Box
Electrical Box Electrical Box Toggle Switch • Toggle switch controls condensing unit • Control Wire connection from Ice Making Section to control the system • Electrical power connected at contactor • Remote condenser fan connects at contactor Control Wire Connection... - Page 30 Condensers Condensers • Three models - ONLY for Eclipse – ERC680 - used with CP686 and CP886 – ERC1086 - only used with CP1086 – and a two circuit model, ERC6810 • can be used with any CP unit • No headmaster in condenser –...
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Page 31: System Installation
System Installation System Installation • Three systems, single and three phase for each – 600 – 800 – 1000 • Must match components to create system... - Page 32 System Installation System Installation • 600 - – CME686, CP686, ERC680 • 800 - – CME810, CP886, ERC680 • 1000 - – CME810, CP1086, ERC1086 • CP units may also be connected to approved central condenser coil using tubing kit RTE10 –...
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Page 33: Equipment Location
Equipment Location Equipment Location • CME can be above or below condensing unit – If above, limit is 15 feet • Pre-charged lines are used – 3 tubes per set – 20, 50 and 75 foot only – No extra refrigerant charge required –... -
Page 34: Other Configurations
Other Configurations Other Configurations Approved Central Condenser Two Circuit Condenser - ER2C6810, use with 600, 800, 1000 or a mix of any two... -
Page 35: Condensing Unit
Condensing Unit Condensing Unit – Modular system - connect CP to ERC – Assemble on roof or ground – ERC has back legs and two braces • Assemble legs and braces to condenser – Connect wires to junction – Place ERC on back of CP - lip on CP holds ERC up... - Page 36 Condensing Unit Condensing Unit • Fasten CP to ERC • Connect liquid and discharge line connections • Route wire to CP control box and connect to contactor...
- Page 37 Line Set Line Set • Three tubes • Reversible • CME routing determines which end goes to CME – Out the top - use double-bend ends at Ends for out the Ends for – Out the back - use CME top out the single 90 degree ends at CME...
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Page 38: Line Set Installation
Line Set Installation Line Set Installation • Route lines in two groups – Liquid and Vapor – Suction separately for ease of routing • 3/4” tube requires careful handling – Check for holding charge before installation – Route control wire with line set –... - Page 39 Two Circuit Condenser Installs Two Circuit Condenser Installs • Mark Lines, Wires and CP Units • Example: – Mark one unit “A” – Mark line set “A” and control wire “A” – Unit A’s pre-charged lines route to Unit A –...
- Page 40 Install CME Install CME • Flush against wall capability Water Inlet Fitting • Drains left, right or back • Water inlet and power inlet from the top or back • Refrigerant line connections back or top • 115 volt unit, cord Drain provided Fitting...
- Page 41 Flush Installations Flush Installations • Attach water inlet • Attach drain - 3/4” – Unit ships with left drain hose installed, • Right drain hose in plastic bag – No vent required, vent is internal – Secure drain with tape for ease of mounting Internal Vent...
- Page 42 Place on Adapter Place on Adapter • Many different Space for Drain at Back adapters – Use gasket tape at mounting area – Sealing area • 22” wide x 15” deep 15” • Remove all panels • Place unit • Connect control wire Top View...
- Page 43 Connect Pre Charged Lines Connect Pre Charged Lines • Add foam tape/cork tape to suction line • Secure unit at sides or back with provided strap-clips...
- Page 44 Condensing Unit Condensing Unit • Connect precharged lines – Use refrigerant oil – Use two wrenches to prevent quick- connect diaphragm damage from rotating tube • Connect control wire • Connect power, check voltage...
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Page 45: Initial Start-Up
Initial Start Up Initial Start Up • Check installation – Power – Water – Drain – Tube Routing • No soak out needed – Plug in CME unit – Check EEPROM code – Push Freeze to start... - Page 46 Start Up Start Up • CME unit – Opens & closes Purge Valve – Fills with water – Switches on Pump – Switches on Condensing Unit • Compressor and fan begin to operate • Adjustments – Purge is adjustable...
- Page 47 Operation Control System Operation Control System • control system – Water level sensor for • Reservoir water fill • Freeze cycle termination – Ice sensors to sense • Ice harvest • Bin full – Controller determines cycles and operates components •...
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Page 48: Control Details
Control Details Control Details • Water level sensor – Two photo-electric eyes in housing – Top eye blocked tells controller water level is – Bottom eye blocked tells controller water reservoir is full... - Page 49 Control Details Control Details • Ice sensors - photo- eyes – Located at bottom of ice drop zone – One side is an emitter, the other a detector – Creates a light curtain that can sense groups of cubes falling during harvest...
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Page 50: Operation
Operation Freeze Operation Freeze • Similar to conventional remote ice cubers – Condensing unit forces liquid refrigerant to the ice making section • Each TXV meters refrigerant to its own evaporator – At a pre-determined water temperature, the pump stops for 30 seconds –... - Page 51 Operation Harvest Operation Harvest • Eclipse features Cold Temperature Harvest – Condensing Unit may be located outside • Temperature Range between -20 and 120 F. • Receiver is with the condensing unit • Vapor line connects discharge gas and receiver vapor to vapor inlet line in ice making section •...
- Page 52 Operation Harvest Details Operation Harvest Details • Vapor inlet valve opens • Condenser bypass valve opens • Receiver inlet valve closes • Purge valve opens • Pump stops for a time then restarts to purge the reservoir of water • Purge valve closes after 40 seconds •...
- Page 53 Operation Harvest Control Operation Harvest Control • Controller begins timing harvest • Ice falling interrupts the signal from the ice sensor emitter to the receiver – The time of that interrupt is recorded by the controller – The last time the controller receives an interrupt signal is saved as the cube release time –...
- Page 54 Operation Operation • Freeze Cycle Time: – 1000 - between 12 and 19 minutes – 800 - between 14 and 22 minutes – 600 - between 16 and 25 minutes • 600’s cycle is longer in very high ambient • Harvest Cycle Time –...
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Page 55: Refrigeration Schematic
Refrigeration Schematic Refrigeration Schematic Condenser Compressor Package Ice Making Section... - Page 56 Condensing Unit Condensing Unit Condenser Bypass Valve Headmaster Liquid Inlet Valve (N.O.) Compressor...
- Page 57 Ice Making Section Ice Making Section Suction Vapor Liquid TXVs Vapor Inlet Valve Check Valves Evaporato...
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Page 58: System Pressures
System Pressures System Pressures • Freeze Cycle – Rapid Pull Down to between 80 and 60 PSIG – Gradual Pull Down to 28 - 30 PSIG just before Harvest – Pressures at CP unit or CME will be the same during Freeze... - Page 59 System Pressures System Pressures • Harvest Cycle – At the ice making section, low side pressure rapidly increases to 90 - 120 PSIG – At the CP unit compressor access valve, dome pressure is limited by the CPR valve to 55 - 60 PSIG during harvest...
- Page 60 System Pressures System Pressures • CP Unit – Discharge during low ambient freeze will be about 225 PSIG • Headmaster rated for 217, there is some variation unit to unit – Discharge during harvest will be about 100 PSIG – High Pressure Cut Out opens at 450, closes at 350 PSIG...
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Page 61: Maintenance
Maintenance Maintenance • De-lime with Scotsman Ice Machine Cleaner – Push & release clean button – Pour in 24 ounces of IM cleaner through handy fill-plug in sump cover – Clean for 10 minutes, then push and release clean button, wait 20 minutes and shut unit off •... - Page 62 Maintenance Maintenance Notch in Wall for Front Access Top Cover Lifts Up...
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Page 63: Service Diagnosis
Service Diagnosis Service Diagnosis • What happens if? • Vapor Inlet Valve Does Not Open – Vapor line hot – Discharge pressure increases – Low side pressure does not change – No ice release - large slabs of ice – 2 blink refrigeration light... - Page 64 Service Diagnosis Service Diagnosis • What happens if? • Control wire becomes unplugged – CP unit does not operate – Exceeds maximum freeze time • Controller shows continuous refrigeration diagnostic light...
- Page 65 Service Diagnosis Service Diagnosis • What happens if? • Condenser by pass valve does not open – High pressure cut out opens • Note: High discharge pressure during harvest will not be present at liquid connection – Ice may release, but slowly...
- Page 66 Service Diagnosis Service Diagnosis • What happens if? • Receiver inlet valve does not close during harvest – Very little change • If it sticks closed – Hi discharge pressure cut out opens – Controller shows continuous diagnostic light...
- Page 67 Service Diagnosis Service Diagnosis • What happens if? • Headmaster is stuck in bypass – Very little liquid flow to TXVs – Long freeze cycle – Controller shows continuous refrigeration diagnostic light...
- Page 68 Service Diagnosis Service Diagnosis • What happens if? • There is a refrigerant leak – No change until refrigerant level drops below the operational threshold for the ambient • Headmaster will try to maintain minimum discharge pressure - but will be hissing as gas flows through •...
- Page 69 Service Diagnosis Service Diagnosis • What happens if? • There is no water to the ice making section – Water is part of the recipe for ice! – Controller will stop unit operation but retry filling every 20 minutes until water is restored...
- Page 70 Service Diagnosis Service Diagnosis • What happens if? • The purge valve leaks through – May result in small cubes – Short freeze cycle – May have long harvest cycle...
- Page 71 Service Diagnosis Service Diagnosis • What happens if? • The inlet water valve leaks through – Keeps adding water (heat load) to reservoir – Result is a long freeze cycle...
- Page 72 Service Diagnosis Service Diagnosis • What happens if? • The condenser fan stops – CP unit’s hi pressure cut out will open – Maximum freeze time will be exceeded – CME unit will shut system off – Controller will display continuous refrigeration diagnostic light...
- Page 73 Service Diagnosis Service Diagnosis • What happens if? • Both the solenoid valves in the condensing unit do not work – Very, very unlikely, but • The discharge pressure during harvest will be about 150 PSIG • The low side pressure during harvest will be less than 90 PSIG •...
- Page 74 Service Diagnosis Service Diagnosis • What happens if? • The CPR valve fails – Pressure during harvest will not be at the pre-set point • 55 to 60 PSIG – Will not hold an adjustment – No external symptom • CPR setting should be checked if compressor is replaced...
- Page 75 Service Diagnosis Service Diagnosis • What happened if? • The controller is showing a one blink refrigeration diagnostic light – This indicates that the ice harvest was very slow and the controller timed-out on maximum harvest time – Ice was sensed by the control system –...
- Page 76 Service Diagnosis Service Diagnosis • What happened if? • The controller is showing a two blink refrigeration diagnostic light – This indicates that the ice harvest was very slow and the controller timed-out on maximum harvest time – Ice was NOT sensed by the control system –...
- Page 77 Service Diagnosis Service Diagnosis • What happened if? • The controller is showing a continuous refrigeration diagnostic light – Maximum freeze time exceeded – Dirty condenser coil – Fan motor inoperative...
- Page 78 Service Diagnosis Service Diagnosis • What happened if? • The controller is showing a two blink water diagnostic light – Slow or no water fill • Possible clogged water filters – Low water level - leaks out – Water level sensor not working or harness connection poor...
- Page 79 Service Diagnosis Service Diagnosis • What happened if? • The controller is showing both diagnostic lights on continuously – This indicates that the temperature sensors are not working or not plugged in. They need to be plugged back in or replaced. –...
- Page 80 Summary Summary • Eclipse is a three part ice making system • There are two ice making heads – Using CM Technology • There are three compressor packages • There are two single circuit condensers • There is one two circuit condenser •...