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Service Manual - Scotsman Ice Systems

1. Roof Pipe Curb or Pitch Pocket To avoid potential kinking of the refrigeration tubing avoid small tight radius types of covers on pitch pockets Suggestions In most cases a mechanical lift boom truck or crane will be required to hoist the condensing unit Mount unit to roof rails or curbs and secure with lag screws or similar field supplied fasteners Orient the assembled unit so that the unit s mounts are parallel to the pitch of the roof to allow water to drain freely Do NOT place the unit directly onto roof rock July 2013 Page 12 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Tubing The line set must be routed between the condensing unit and the ice maker s location During the transition from quick connects to braze connections the ice maker condensing unit and line set may or may not have quick connects use this chart as a guideline for the proper action based on what is available at the site ooo Condensing unit has sweat connections Condensing unit has quick connects Ice making head has If line set does not have quick connects Compressor packs C1200CP sweat connections route and use as is C1410CP and C1800CP may be connected to this head and will have quick connects If line set has quick connects recover refrigerant from line set and cut one end of quick connects off If line set has quick connects recover refrigerant from line set and cut all qu
2. May 2015 Page 27 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Critical Maintenance Water Level Sensor us Ing pints In 3 Pull down then lift up to remove probe 4 Clean all dirty and scale from the housing x 4444 4 INI NUNG i pu Md aie in ty aS the ara HONO Mn et hy T ie M NUN x 4742 l IN DEN ue de 5 Clean entire probe be sure circled area is clean May 2015 Page 28 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Operational Characteristics 1200 Ib system ECC1200 EH330 Cycle Times Condenser Temp Cabinet Temp Water Temp in degrees F I 70 70 50 90 90 70 120 110 100 9 to 11 minutes 12 to 13 minutes 17 to 19 minutes 1 to 1 5 minutes 5 to 1 minute System Pressures Condenser Temp Cabinet Temp Water Temp in degrees F 2 0 70 50 90 90 70 120 110 100 Suction at head end of Freeze 29 to 31 PSIG 28 to 32 PSIG 36 to 38 PSIG Suction at head Harvest Peak 92 to 98 PSIG 165 PSIG 170 PSIG Discharge at Condensing Unit 230 to 250 PSIG 250 to 285 PSIG 350 PSIG Freeze 5 minutes in Operational Characteristics 1400 Ib system ECC1410 EH430 Cycle Times Condenser Temp Cabinet Temp Water Temp in degrees F Fd 0 70 50 90 90 70 120 110 100 16 to 17 minutes 25 to 27 minutes 1 to 1 5 minutes System Pressures Condenser Temp Cabinet Temp W
3. a Hemy HgnToS To set 1 Switch the machine OFF by holding the Off button in until a number or the letter A shows on the display 2 Press and release the On button repeatedly until the number on the display corresponds to the desired setting 3 Press and release the Off switch again to return to the normal control state 1 8 to 3 16 Bridge gt BI Bridge Thickness Adjustment Mechanism 2015 31 xV EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Controller Information Machine Indicator Lights Power Status Water Clean Code Display Main codes automatically displayed F F H H C3 Freeze Cycle flashes Freeze Cycle is Pending Harvest Cycle flashes Manual Harvest Bin is Full Clean Cycle Board Locked Test Mode Off Self Test Failed flashes Max Freeze Retrying Max Freeze Time Shut Down flashes Max Harvest Retrying Max Harvest Time Shut Down Slow Water Fill High Discharge Temp Sump Temp Sensor Failure Discharge Temp Sensor Failure flashes Short Freeze Retrying Short Freeze Thin ice Setting Codes requires push button sequence for access Water Purge Settings A 1 2 3 4 5 De scale Interval Settings 6 5 3 3 July 2013 32 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Operation
4. 5 Rotate CCW to decrease bridge thickness Caution Do not make the bridge too thin or the machine will not harvest properly Bridge thickness adjustments are not covered by warranty 6 Return curtain and evaporator cover to their normal positions 7 Push and release the On button Check next harvest of ice Repeat steps 1 6 if needed Water Purge Setting The water purge is factory set to the automatic position suitable for most water conditions The setting can be changed to one of 5 manual settings or left on automatic 4 Heavy High TDS Maximum Very high TDS Automatic Factory setting To set 1 Switch the machine OFF by holding the Off button in until a number or the letter A shows on the display 2 Press and release the On button repeatedly until the number on the display corresponds to the desired setting 3 Press and release the Off switch again to return to the normal control state Small Depression 1 8 3 16 Bridge de July 2013 Page 21 TOO SMALL W EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Cleaning Sanitation and Maintenance C Series This ice system requires three types of maintenance Sanitize the ice machine s water system and the e Remove the build up of mineral scale from the ice ice storage bin or dispenser machine s water s
5. Call Physician immediately Keep out of the reach of children Note If unit has not been de scaled for an extended period of time and significant mineral scale remains repeat steps 6 8 8 Remove curtain from unit 9 Locate ice thickness sensor Squeeze mounting legs together to release sensor 10 Remove water distributor from ice machine by disconnecting its hose squeezing the retaining snaps together and pushing the distributor to the right as far as possible Lift up to remove Inspect distributor for restricted orifice holes Be sure all holes are full open 11 Locate water level sensor Squeeze catches together and pull up to remove sensor Separate probes from housing and wash all surfaces with ice machine scale remover solution Return probes to holder 12 Wash the metal surfaces of the ice thickness sensor and the adjustment screw with ice machine cleaner solution Also wash the water distributor water level sensor probes and curtain with the ice Step 13 Release probes by pushing in on white buttons and pulling probe down out of holder May 2015 Page 24 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual gt x lb SS Inspect Orifice Holes machine cleaner solution 13 Create a solution of sanitizer Mix 8 ounces of NuCalgon IMS Il and 5 gallons of 105 115 degree F potable water to create a 200 ppm
6. Once started the ice machine will automatically make ice until the bin or dispenser is full of ice When ice level drops the ice machine will resume making ice Caution Do not place anything on top of the ice machine including the ice scoop Debris and moisture from objects on top of the machine can work their way into the cabinet and cause serious damage Damage caused by foreign material is not covered by warranty There are four indicator lights at the front of the machine that provide information on the condition of the machine Indicator Lights Power Status Water De scale amp Sanitize Indicator Lights amp Their Meanings Power Status 7 Scale amp Sanitize Steady Green Normal Normal bin full or making ice Blinking Green Self Test Failure Switching on or off M Blinking Red Diagnostic Lack of water shutdown or if making ice temperature sensor failure T m and Blinking Yelow __ Si in Cleaning mode If the Water light is on the machine has sensed a lack of water Check the water supply to the machine The water could have been shut off or the water filter cartridges might need to be changed If the De Scale light is on the machine has determined that it needs to be cleaned Contact an authorized Scotsman service agent and have the machine cleaned de scaled and sanitized July 2013 Page 33 EH330 EH430 and ECC Condensing Unit Remote L
7. System Page Refrigeration Page Freeze Cycle Sequence of Operation Page Harvest Cycle Sequence of Operation Page Control Page Controller Operation Service Diagnosis Page Service Diagnosis Page Service Diagnosis Page Refrigeration Page Refrigeration Data 1800 Page Refrigerant Recovery Page System Isolation Condenser EH330 C EH430 C Schematic Diagram Page EH330 C or EH430 C Wiring Diagram Page Initial Start Page 20 EH330 D or EH430 D Schematic Diagram Page Ice Thickness and Water Purge Adjustment Page 21 EH330 D or EH430 D Wiring Diagram Page Cleaning Sanitation and Maintenance Page 22 ECC 3 Phase Schematic Diagram Page Operational Characteristics 1200 Ib system ECC 1200 ECC 3 Phase Wiring Diagram Page EH330 siii des ror hx ehe Page 29 ECC 1 Phase Schematic Diagram Page Operational Characteristics 1400 Ib system ECC 1410 RO Page 29 ECC 1 Phase Wiring Diagram Page Operational Characteristics 1800 Ib system ECC1800 May
8. connection and vapor line connection 7 Shorten tubing to correct length clean ends and insert them into valve stubs Note Be sure tube and stubs are round dress with swage tool if needed 8 Add heat sink material to ball valve body 9 Opennitrogen and flow 1 psi nitrogen into liquid line and vapor line tubes and braze the liquid line vapor line and suction line tubes to the valve stubs At Head 1 With nitrogen flowing from condensing unit braze the liquid vapor and suction line connections 2 Remove refrigeration hose from head Be sure valve cap is on tight At Condensing Unit 1 Remove nitrogen supply 2 Return valve cores to access valves 3 Connect vacuum pump to all three access valves and evacuate the tubing and head to at least a 300 micron level 4 Remove vacuum pump and add R 404A vapor to all three tubes to provide a positive pressure 5 Leak check the braze connections and repair any leaks 6 Open all three valves to full open Note The full refrigerant charge is contained in the receiver of the condensing unit Refrigeration Connections July 2013 Page 17 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Complete the Installation After the utilities and refrigeration connections have been made secure the unit to the dispenser or bin top Secure ice making section to dispenser or bin adapter Use strap clips to secure unit On some bins o
9. 8 51 ij 3823 July 2013 Page 5 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Cabinet Drawings EH330D Ice Making Head 762 30 00 393 70 15 50 MINIMUM BIN TOP OPENING 244 60 9 63 k Iv 2 464 82 2 18 30 o i 14173 609 60 8 5 58 2400 9 a 11046 435 s e 19472 i 373 50 80 22860 ELECTRICAL CORD 3 4 SUCTION LINE 2 00 PLAN VIEW 9 00 ACCESS HOLE 3 8 FPT 1 2 COOL VAPOR LINE WATER m 779 88 5 INLET 3 8 LIQUID LINE 30 70 1 530 86 20 90 448 56 17 66 381 76 432 56 15 03 17 03 H 12 35 Y 1 3823 56 64 151 _ k 60960 N 762 UTILITY 24 00 m 703 20 N CASE 27 69 INFERFACE CABLE gt BACK VIEW ACCESS HOLE LEFT SIDE VIEW FRONT VIEW May 2015 Page 6 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Cabinet Drawings EH430D Ice Making Head 762 25 30 00 39370 15 50 MINUMUM TOP OPENING 24460 _ 963 y f 141 73 5 58 u 108 46 2 427 464 82 6 18 30 93 98 lt 3 70 609 60 24 00 85 06 335 i 3 4 SUCTION LINE ELECTRICAL 1 ACCESS HOLE 22860 1 2 50 80 be yg PT _ 1 2 COOL VAPOR LINE I PLAN VIEW 9 00 INLET _3 8 LIQUID LINE 1779 88 2 30 70 1 1 1 68174 2684 600 71 23 65 533 62 21 01 736 60 i 228 60 29 00 2
10. active quaternary solution 14 Thoroughly wash all surfaces of the ice thickness sensor water level sensor curtain and water distributor with the sanitizer solution 15 Wash all interior surfaces of the freezing compartment including evaporator cover and right side panel liner with the sanitizer solution 16 Return water level sensor ice thickness sensor water distributor and curtain to their normal positions Be sure water level sensor and ice thickness sensor are completely dry 17 Push and release the Clean button The yellow Clean light will blink and the display will show C The machine will go through a harvest cycle drain the reservoir and begin to refill it 18 Observe code display when it blinks the characters Ad1 immediately go to the next step 19 Pour the sanitizing solution into the reservoir until itis full The unit will circulate the sanitizer then drain and flush it This will take 35 minutes then the machine will stop and the display will show O 20 Return the evaporator cover and front panel to their normal position and secure with the original fasteners 21 Push and release the On button to resume ice making Other Maintenance The remote air cooled condenser coil must be cleaned occasionally to keep the system operating at high efficiency Remove any large debris from the outside of the coil Vacuum accumulated dust Wash out the coils with water Caution Do NOT use exce
11. and switch panel Push and release the ON button on that panel The code display will begin to blink F The purge valve opens the water pump starts and the inlet water valve opens to add water to the reservoir In a few seconds the purge valve closes and the water pump stops Water will flow into the machine until the reservoir is full The vapor valves and harvest assist devices will activate then the compressor and water pump will start The will be on steady Note Because the condensing unit is external to the ice making section no visible signs of operation will be noticeable until the water begins to cool and frost forms on the evaporator tubing 7T Goto the condensing unit and confirm that the compressor and fan motor are operating Warm air will be discharged from the condenser Observe the Ready for Harvest indicator light It may blink early in the cycle that is normal The control will ignore that signal for the first 6 minutes of freeze During the Freeze cycle move the curtains and observe that the SW1 or SW2 light on the control board blinks On when the curtain moves away from the evaporator and Off when returned to its normal position Note Moving a curtain during the Freeze cycle has no affect on control function but will cause water to flow into the cube chute When enough ice has frozen the Ready for Harvest indicator light will be on steady After it s been on steady for a few seconds Harvest will be
12. e Broken bent or dismounted ice thickness sensor Sagging water distributor mounting bracket See Service Bulletin PS 9 2012 May 2015 Page 26 EH330 430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Critical Maintenance Ice Thickness Sensor The freeze cycle on a Prodigy cuber is controlled by an ice thickness sensor positioned in front of the ice making surface It is triggered by water contact Water contacts the sensor when the ice is at the proper size During use the Ice Thickness Sensor will become coated with mineral scale from the water which if left untreated can cause changes in bridge thickness To correct the Ice Thickness Sensor must have the mineral scale removed 1 2 4 Remove the thickness sensor from the water distributor bracket Separate the metal sensor from the plastic insulator bracket Wipe the sensor with diluted ice machine scale remover Scrub the white or dark gray plastic insulator bracket with diluted ice machine scale remover and remove all traces of mineral build up Wipe the wire to the bulkhead with diluted ice machine scale remover Wash all ice thickness sensor parts off with clean water Blow air thru metal sensor and insulator bracket to dry them Reassemble and remount to water distributor bracket Separate these two parts Clean them with diluted ice machine scale remover Rinse with clean water Blow dry and reassemble
13. fill the first 30 seconds of the test If the sump is full it will overflow into the bin At 30 seconds the Water Inlet Valve will shut off and the Water Pump will turn on You will be able to see and hear the water running over the plates After 10 seconds the Purge and Vapor Inlet Valves will turn on Water will be purging from the machine After 10 more seconds the compressor will start 5 seconds later the VIV will close The compressor will run for a total of 20 seconds After which everything will turn off for 5 seconds After that time the VIV will open and you ll be able to hear the hissing as the pressure is equalized After 10 seconds all will be off and the output test will be complete Change De Scale Notification Interval Like the others this feature is accessible only from standby Status Light Off Press and hold harvest button for seconds This will allow control to enter Time to Clean Adjustment State Display current time to clean months on 7 segment display Pressing clean button repeatedly will cycle through one of 4 possible settings 6 months 4380 hours default 5 months 3650 hrs 4 months 2920 hrs 3 months 2190 hrs July 2013 Page 39 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Service Service Diagnosis eee Problem or Symptom Possible Probable Correction No ice user why it was shut off Power to both sections controller reset but conden
14. pounds of refrigerant to check If low on charge locate leak Recover refrigerant repair leak replace drier evacuate to 300 microns and weigh in the name plate charge Whistling noise at condensing unit By pass and liquid inlet valve coils Check harness during harvest not getting power July 2013 Page 42 EH330 430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Refrigeration Data ECC1200 with EH330 90 90 70 Freeze Cycle Low Side Pressure in PSIG Discharge pressure at 90 70 will peak at 280 290 PSIG and drop to 160 during harvest Typical cycle time is 12 to 13 minutes including 1 minute for harvest CC1410 with EH430 90 90 70 Freeze Cycle Low Side Pressure in PSIG Discharge pressure at 90 70 will peak at 280 290 PSIG and drop to 160 during harvest Typical cycle time is 12 to 13 minutes including 1 minute for harvest July 2013 Page 43 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Refrigeration Data 1800 ECC1800 with EH430 90 90 70 Freeze Cycle Low Side Pressure in PSIG Discharge pressure at 90 70 will peak at 240 250 PSIG operate between 230 and 240 and drop to 170 during harvest Typical cycle time is 13 14 minutes including 1 30 for harvest July 2013 Page 44 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Refrigerant Recovery Recover the refrigerant from the ball valve access valves i
15. time in the ice making section the vapor inlet valves open Discharge gas combined with some vapor from the receiver s outlet then flows through the vapor line to the evaporator inlet The gas vapor combination when entering the relatively cold evaporator condenses transferring latent heat to the evaporator which warms it Ice releases and falls into the bin La The low pressure refrigerant then flows out of the evaporator and into the suction line The suction line brings the refrigerant now consisting of a vapor liquid combination to the accumulator From the accumulator the vapor liquid combination now more vapor than liquid goes to the Crankcase Pressure Regulator valve which limits the amount of dome pressure in the compressor where the cycle continues Head Pressure yaive CPR Valve Interconnecting Tubing Ice Making Head Accumulator Vapor Valve Ball Valves July 2013 Page 35 EH330 430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Freeze Cycle Sequence of Operation This sequence begins with a restart after the unit has shut off with the bin full Ice has been consumed causing the ice sensors to become un blocked 1 The controller four minutes has to have passed since the machine shut off on bin full for the machine to restart 2 The purge valve is opened and the pump started 3 After the purge valve closes the inlet water valve opens and fills the reservo
16. 10200 or ID250 KBT44 Bin Adapter Kits B948S 22 Tubing Kits 20 foot 3BRTE20 EH 35 foot 3BRTE35 EH 50 foot 3BRTE50 EH 75 foot 3BRTE75 EH Note Line set may have quick connects See refrigeration system detailed instructions connection details ltems required for installation Ice making head Condensing unit includes interconnecting control system wire Tubing kit 20 35 50 or 75 triple line set liquid vapor and suction Bin or dispenser adapter Special Considerations The ice making section s footprint is 30 wide by 24 deep plus another 1 5 for a utility chase on the back panel The refrigeration connections can be made to go up or out the back by bending the line set tubing The electrical power cord and the water inlet line can also be routed through either of those areas The drain may be routed out the back or to the left side Water Pure water does not exist All water supplies contain some amounts of impurities although potable water is by definition fit for human consumption Because the contents of the water to an ice machine directly impact its performance consideration should be given to improving the water s quality There are two ways water can contain impurities in suspension or in solution Suspended solids can be filtered out of the water In solution or dissolved solids must be diluted or treated Water filters are recommended to remove the
17. 16 15 1 8 51 1 t i 3 4 DRAIN 88 62 _ 56 64 t 1 1 349 223 N 38 23 I 762 L 703 58 151 609 60 30 00 27 70 INFERFACE CABLE UTILITY 24 00 ACCESS HOLE CASE BACK VIEW LEFT SIDE VIEW FRONT VIEW May 2015 Page 7 EH330 430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Cabinet Drawings ECC Condensing Unit TOP VIEW 992 81 39 09 FRONT VIEW I Ja 814 22 32 06 887 73 34 95 88 ELECTRICAL INLET 3 4 SUCTION LINE 1009 65 39 75 1 2 COOL VAPOR LINE 3 8 LIQUID LINE 83 67 3 29 74 12 2 92 July 2013 Page 8 SIDE VIEW LINE SET AND ELECTRICAL ATTACHMENT SIDE 330 86 13 03 750 06 29 53 N N N 63 50 2 50 tep J Q INTERFACE HARNESS 2203 ACCESS HOLE 642 248 87 9 80 491 69 19 36 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Pre Installation Details Note The ice making head cannot be stacked vertically Accessories such as bin adapters and tubing kits are required to complete the installation Dispenser Adapter Kits Scotsman
18. 2015 Page 1 30 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 EH330 430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Configuration A remote low side cuber system includes two sub systems an ice head section and a remote condensing unit Additionally there are several models of each sub system and this manual covers all of them The ice making sections are designed for use indoors in a controlled environment The remote condensing units are designed to operate outdoors Each sub system has limits for power water and temperature Operational Limitations PY Minimum Air Temp IH 100 F Air Temp CU 120 F Water Temp 100 F Voltage IH IH 7 Ice Head CU Condensing Unit Do Not operate the machine in conditions beyond these limitations Doing so will void the warranty Scotsman ice systems are designed and manufactured with the highest regard for safety and performance They meet or exceed the standards of UL and NSF Scotsman assumes no liability of responsibility of any kind for products manufactured by Scotsman that have been altered in any way including the use of any part and or other components not specifically approved by Scotsman Scotsman reserves the right to make design changes and or improvements at any time Specifications and design are subject to change without notice System Information Condensing Unit
19. C Condensing Unit Remote Low Side Cuber Service Manual Reference for Start Up Controller Operation he controller and remote switch panel have four indicator lights and the On and Off buttons Power Status Water De scale 101516 VO Sanitize On Manual Clean Harvest Code Display Technician Section Control Operation See Manual Lower light and switch panel Indicator Lights Power on when there is power to the controller Status on in ice making mode Water on and blinking when there is no water De scale amp Sanitize on when it is time to clean the machine Code Display e Displays status and diagnostic codes Push Buttons e On Off e Manual Harvest e Clean N COMPRESSOR TP21 CURTAIN SWIT TP12 124 e 77 z 2 9 FAN Z AUX PURGE WATER SOLENOID READY TO HARVEST 5 lt HOT GAS Component indicator lights Fan not used on this model Water Pump on when the pump is Purge Valve on when the purge valve is e Water Solenoid on when the inlet water solenoid valve is Hot Gas on when the vapor inlet valve and harvest assist solenoid mechanism have power Compressor on when the compressor contactor is energized Ready to Harvest on when the ice thickness sensor has water touching it e Sump Empty on when there is no water touching the mid length probe Sump Full on when water is to
20. CU Model Electrical volts Hz phase Warranty Refer to the warranty coverage in effect when the equipment was sold Warranty statements are included with each product Systems Each sub system is a separate entity that carries its own model and serial number They must be combined to create a remote cuber low side system Notes Voltage Codes are at the end of the model number Codes read Voltage Hertz Phase Those related to these products include 1 115 60 1 3 208 230 60 3 32 208 230 60 1 Tubing kits are required to interconnect the head to the CU 20 foot 3BRTE20 EH 35 foot 3BRTE35 EH 50 foot 3BRTE50 EH 75 foot 3BRTE75 EH Interconnecting 24 volt control wire ships in the condensing unit Ice Making Head IH Model Electrical volts Hz phase May 2015 Page 2 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Technical Specifications Minimum Circuit MS Electrical volts Hz phase Maximum Fuse Size System Cabinet Size Approx Charge oz of w xd xh Unit Weight R 404A EH330SL 1C or D 115 60 1 3 5 30x24x23 EH430SL 1C or D 115 60 1 3 I 30 x 24 x 29 ccs us T 2 30 x 393075 j Ecoma 208 2301608 m za 32x39x3975 fEcct410 32 208 2301601 o sexsexsezs Ecc18003 208 2301606 30 232 32 393976 See Cabinet Drawings for exact dimensions Location
21. EMBRANE ELECTRONIC CONTROL CURTAIN ICE SWITCH 2 DISCHARGE THICKNESS TEMP CURTAIN SWITCH 1 July 2013 Page 50 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual EH330 D or EH430 D Wiring Diagram PROPER VOLTAGE REQUIREMENTS AN MAXIMUM FUSE SIZE SEE NAMEPLATE FOR E EARTH HOT GAS USE COPPER CONDUCTORS ONLY BNW ELECTRONIC CONTROL 3812 0 CURTAIN SWITCH July 2013 Page 51 L DISCHARGE TEMP SENSOR USER TEMP SENSOR INTERFACE MEMA ANE EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual ECC 3 Phase Schematic Diagram CONTROL WIRE FROM 24 VOLT ICE MAKING SECTION 77 FROM ICE MAKING SECTION LOAD 24V TRANSFORMER CONDENSER BYPASS VALVE N C COMPRESSOR SWITCH HIGH CONTACTOR COIL PRESSURE CONTROL LIQUID INLET VALVE N O CRANKCASE HEATER LINE TRANSFORMER CONTACTOR Tl T3 COMPRESSOR FAN MOTOR July 2013 Page 52 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual ECC 3 Phase Wiring Diagram 17 3460 01 USE COPPER CONDUCTORS N Y COMPRESSO eer _ _ SEE NAMEPLATE FOR HT A PROPER VOLTAGE REQUIREMENTS Y POWER SUPPLY SWITCH AND MAXIMUM FUSE SIZE AN HIGH PRESSURE CONTROL MAKING DASHED LINES INDICATE FIELD WIRING WHICH MUST BE INSTALLEO
22. H430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Condenser Coil The condenser s coil is micro channel aluminum and may be replaced in the field without changing the condensing unit The replacement coil ships with attached stainless steel stubs To replace it 1 Recover refrigerant Disconnect electrical power Remove top panel Remove fan blade fan motor and fan motor brackets Disconnect tubing to condenser coil Remove fasteners that secure coil to unit and remove coil from machine Place new coil in position and secure with original fasteners Attach dry nitrogen source to system and bleed nitrogen at 1 PSIG while brazing o o o b o mw Braze new coil stubs to unit tubing Be sure to NOT overheat the stubs Apply heat to the copper tubing first and move the flame toward the stub Heat the copper tubing for approximately 10 to 15 seconds then direct the heat to the stub Heat the stub for 2 to 5 seconds and apply 15 silver solder to joint do not use flux Do not attempt to fill the joint with solder solder will draw into joint 10 Shut off and remove nitrogen source 11 Install new dryer evacuate system and recharge with nameplate charge 12 Return fan motor blade brackets and top panel to unit reconnect power restart machine check operation July 2013 Page 47 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual EH330 C or EH430 C Schematic Diagram HAR
23. ICE SYSTEMS 775 Corporate Woods Parkway Vernon Hills IL 60061 www scotsman ice com 800 726 8762 800 533 6006
24. IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE AND ALL STATE AND LOCAL CODES TERMINAL BOX CAUT UN COMPRESSOR THIS UNIT MUST MORE THAN DNE DISCONNECT MEANS MAY BE BE GROUNDED REQUIRED TU DISCONNECT ALL POWER TU THIS UNIT July 2013 Page 53 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual ECC 1 Phase Schematic Diagram CONTROL WIRE FROM 24 VOLT ICE MAKING SECTION FROM ICE MAKING SECTION LDAD 24V TRANSFORMER CONDENSER BYPASS VALVE N C COMPRESSOR SWITCH HIGH CONTACTOR COIL PRESSURE CONTROL LIQUID INLET VALVE L1 CRANKCASE HEATER LINE TRANSFORMER CONTACTOR TI POTENTIAL RELAY COIL RELAY C FAN MOTOR July 2013 Page 54 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual ECC 1 Phase Wiring Diagram 17 3461 01 USE COPPER CONDUCTORS ONLY a N TREE SEE NAMEPLATE FDR POWER SUPPLY VOLTAGE REQUIREMENTS COMPRESSOR AND MAXIMUM FUSE SIZE SWITCH CONDENSER BYPASS VALVE LIQUID IINLET VALVE E 24 VOLT HIGH PRESSURE FROM ICE CONTROL MAKING SECTION A DASHED LINES INDICATE FIELD WIRING WHICH MUST BE INSTALLED IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE AND ALL STATE AND LOCAL CODES anni ION 3 COMPRESSOR THIS UNIT MUST MORE THAN ONE DISCONNECT MEANS MAY BE BE GROUNDED REQUIRED TO DISCONNECT ALL POWER TO THIS UNIT July 2013 Page 55 SCOTSMAN
25. Limitations Maximum Distance between Head and Condensing Unit Limited to the length of the longest available single tubing kit 75 feet Maximum Condensing Unit Elevation over Ice Making Head 35 feet Note Elevations greater than 20 feet require installation of a suction line trap at the 20 foot mark Maximum Ice Making Head Elevation over Condensing Unit 15 feet Line Routing Allowed One rise after a drop Allowed One drop after a rise Not Allowed More than one rise after a drop Not Allowed More than one drop after a rise Model Number Locations Ice Making Head The dataplate on the back of the ice machine contains the model number serial number and electrical data A second plate located behind the front panel at the lower right front also lists the model and serial numbers Condensing unit The dataplate on the condensing unit contains the model number serial number electrical data and system refrigerant charge A second plate located behind the front panel in front of the compressor also lists the model number serial number and refrigerant charge July 2013 Page 3 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Cabinet Drawings EH330C Ice Making Head ELECTRICAL CORD ACCESS HOLE 3 8 FPT WATER INLET 43256 Y 1703 e x 9 3 4 FPT 6932 DRAIN 273 88 62 703 20 349 27 69 BACK
26. Scotsman Ice Systems service Manual for Prodigy Eclipse Cubers models EH330 C and EH430 C with ECC Condensing Unit ECC1200 ECC1410 ECC1800 Includes Prodigy Plus D Models EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Introduction This manual covers the assembly installation start up operation and maintenance of the 1200 1400 and 1800 remote low side cuber systems Contents Technical Specifications Page Cabinet Drawings EH330C Ice Making Head Page Cabinet Drawings EH330D Ice Making Head Page Cabinet Drawings EH430D Ice Making Head Page 2 3 4 Cabinet Drawings EH430C Ice Making Head Page 5 6 7 Cabinet Drawings ECC Condensing Unit Page 8 9 Pre Installation Details Page Create the System Page 10 System Page 11 Place Remote System Page 12 TUBING aa 13 Place Ice Making Page 14 Condensing Unit Electrical Page 15 Water and Drain Page 16 Connect Refrigeration Page 17 Complete the Installation Page 18 Reference for Start Up Controller Operation Page 19 ERSO i eee a eC e e Page Controller Information Page Operatloriz inge RR RR Page
27. VEST ASSIST MOTOR 2 HOT GAS TRANSFORMER VAER O HARVEST ASSIST MOTOR 1 HOT GAS O VALVE 1 saad I cc e 1 5 Ia i vo C ELECTRONIC CONTROL CURTAIN ICE SWITCH 2 DISCHARGE THICKNESS TEMP PROBE CURTAIN SWITCH 1 July 2013 Page 48 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual EH330 C or EH430 C Wiring Diagram USE COPPER CONDUCTORS ONLY BNW mugs 1 HAAS 1 BNW W WATER 71 Horcas 1 HARV ASSIST BNW SOLENOID momor _ o o BNW w _ IT _ wong w w SEE NAMEPLATE FOR PROPER VOLTAGE REQUIREMENTS 9 AND MAXIMUM FUSE SIZE E a R 558 TERMINAL BLOCK GNY LOAD i SUMP TEMP sw H ELECTRONIC CONTROL TRANSFORMER DISCHARGE E TEMP SENSOR EARTH GROUND GNY 7 2 AN piste LINES INDICATE FIELD WIRING WHICH MUST BE SAX SR INSTALLED IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE AND ALLSTATE AND LOCAL CODES CURTAN CURTAIN SWITCH 1 SWITCH 2 AUTION THIS UNIT MUST MORE THAN ONE DISCONNECT MEANS MAY BE BE GROUNDED REQUIRED TO DISCONNECT ALL POWER TO THIS UNIT July 2013 Page 49 EH330 430 and ECC Condensing Unit Remote Low Side Cuber Service Manual EH330 D or EH430 D Schematic Diagram HARVEST ASSIST MOTOR 2 HOT GAS TRANSFORMER VALVE 2 HARVEST ASSIST TO COMPRESSOR SECTION CONTACTOR ML MN USER INTERFACE M
28. VIEW 110 46 July 2013 Page 4 762 30 00 393 70 15 50 MINIMUM BIN TOP OPENING 244 60 9 63 9 464 82 z 1830 a a 141 73 609 60 5 5 58 2400 435 9472 373 50 80 228 60 PLAN VIEW 3 4 SUCTION LINE 2 00 9 00 1 2 COOL VAPOR LINE 784 55 3 8 LIQUID LINE 30 89 530 86 H 20 90 448 56 17 66 38176 58420 15 03 19050 23 00 313 69 750 12 35 N 153 16 6 03 i Y 1 i 38 23 762 5664 151 609 60 3000 223 UriLITY 24 00 lt CASE FRONT VIEW LEFTSIDEVIEW a INFERFACE CABLE ACCESS HOLE EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Cabinet Drawings EH430C Ice Making Head 141 73 5 58 108 46 4 27 93 98 3 70 85 06 3 35 ELECTRICAL CORD ACCESS HOLE 3 8 FPT WATER INLET 477 01 508 76 18 78 20 03 pae SS 3 4 3 4 SUCTION LINE 1 2 COOL VAPOR LINE 3 8 LIQUID LINE 533 62 21 01 600 71 23 65 681 74 26 84 762 30 00 393 70 15 50 MINUMUM TOP OPENING 244 60 9 63 2 46482 1830 609 60 2400 Ir iol PLAN VIEW 22860 2 00 nop i 30 89 1100 E 73660 228 60 2900 9 00 21615
29. aner scale remover to circulate in the water system for at least 10 minutes 8 Push and release the Clean button again The July 2013 Page 22 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Step 15 Release probes by pushing in on white buttons and pulling probe down out of holder 17 Create a solution of sanitizer Mix 8 ounces of NuCalgon IMS II and 5 gallons of 105 115 degree F potable water to create a 200 ppm active quaternary solution 18 Thoroughly wash all surfaces of the ice thickness sensor water level sensor curtain and water distributor with the sanitizer solution 19 Thoroughly wash all interior surfaces of the freezing compartment including evaporator frames evaporator cover and the part of the top panel covering the freezing compartment with the sanitizer solution 20 Return water level sensor ice thickness sensor water distributors and curtains to their normal positions Be sure hose is reattached to water distributors Be sure ice thickness sensor it dry 21 Push and hold the clean button to drain the reservoir Push and release the clean button again and when the purge valve indicator light goes out immediately pour the remaining cleaning solution into the reservoir 22 Circulate the sanitizer solution for 10 minutes then push and release the Clean button 23 Allow the water system to be flushed of sanitizer for at least 20 minutes then push and
30. ater Temp in degrees F Pos 70 70 50 90 90 70 120 110 100 Suction at head end of Freeze 35 to 37 PSIG 35 PSIG 41 to 44 PSIG Suction at head Harvest Peak 85 to 105 PSIG 100 to 120 PSIG 120 to 130 PSIG Discharge at Condensing Unit 220 to 230 PSIG 260 to 270 PSIG 350 to 380 PSIG Freeze 5 minutes in Below information applies to both size systems Headmaster maintains a minimum discharge pressure during freeze of 217 PSIG 25 15 PSIG CPR Valve Setting 55 60 PSIG Note CPR allows a maximum low side pressure at the compressor Maximum only occurs during harvest Refrigerant Charge e 1200 224 2 1400 224 oz Compressor Amps 1200 e Single Phase 10 to 14 Compressor Amps 1400 Single Phase 8 to 12 Three Phase 6 to 10 Batch Weight 1200 10 Ib Batch Weight 1400 14 15 Ib Discharge Pressure Cut Out Switch Cuts Out at 450 PSIG Resets at 350 PSIG July 2013 Page 29 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Operational Characteristics 1800 Ib system ECC1800 EH430 Cycle Times Condenser Temp Cabinet Temp Water Temp in degrees F I 70 70 50 90 90 70 120 110 100 System Pressures Condenser Temp Cabinet Temp Water Temp in degrees F 222 0 99070 120 10 00 i 1 Suction at head Harvest Peak 80 to 100 PSIG 90 to 110 PSIG 40 to 160 PSIG Discharge at Condensing Unit 240 to 260 PSIG 250 to 270 PSIG 370 to 380 PSIG Freeze 5 minut
31. d only cut off the quick connect at the system with the stub connections Tubing without quick connects Check head and condensing unit if neither have quick connects use as is If one or both do obtain kit KTE6 to add quick connects to the line set Excess tubing must be shortened at the job site Installations with greater than 20 feet of vertical lift between ice machine and the compressor require a suction line trap The suction line requires careful handling and large radius bends to prevent kinking Roof mounting Some installations will require the use of a hoist to lift the components to the roof Pad mounting The condensing unit may be located below the ice making section up to a limit of 15 feet Distance from unit Limited to the length of the available tubing Elevation Condensing unit limited to 35 feet above the ice making head Condensing Unit Electrical power must be supplied to the condensing unit it will be separate from the head The remote tubing connections are at the top of the machine and connections should not be made until the machine is nearly in its final installed position The 115 60 Hz ice making section is cord connected and requires an outlet within 6 feet of the installation Interconnecting wires A low voltage interconnecting wire harness is included with the condensing unit One end plugs into the ice making head and the other into the condensing unit The system will NOT ope
32. es in Headmaster maintains a minimum discharge pressure during freeze of 217 PSIG 25 15 PSIG CPR Valve Setting 55 60 PSIG Note CPR allows a maximum low side pressure at the compressor Maximum only occurs during harvest Refrigerant Charge e 1800 232 oz Compressor Amps 1800 Three Phase 10 to 14 Batch Weight 14 15 Ib Discharge Pressure Cut Out Switch Cuts Out at 450 PSIG Resets at 350 PSIG July 2013 Page 30 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Ice Thickness and Water Purge Adjustment Bridge Thickness For the Service Tech Only 1 Push and hold Off till the machine stops 2 Remove evaporator cover 3 Remove curtain 4 Use a hex wrench and rotate the bridge thickness adjustment screw in 1 16 turn increments CW to increase bridge thickness 5 Rotate CCW to decrease bridge thickness Caution Do not make the bridge too thin or the machine will not harvest properly Bridge thickness adjustments are not covered by warranty 6 Return curtain and evaporator cover to their normal positions 7 Push and release the On button Check next harvest of ice Repeat steps 1 6 if needed Water Purge Setting The water purge is factory set to the automatic position suitable for most water conditions The setting can be changed to one of 5 manual settings or left on automatic Setting Water Type Minimum RO water or equivalent Moderate Low TDS non RO
33. gin The display shows an 4 The vapor valve in the EH opens and the harvest assist mechanism activates In the CU the condenser bypass valve opens and the receiver inlet valve closes In the EH the purge valve opens to drain some water when it does the inlet water valve opens to refill the reservoir After a few seconds the purge valve closes but the inlet water valve continues to fill the reservoir Harvest continues until the ice is released as a unit and forces the curtain to open When the curtain opens it signals the controller that harvest is complete and it returns the unit to a freeze cycle 8 Check the ice harvested for proper bridge thickness The ice bridge is factory set at 1 8 inch If needed adjust bridge thickness Do NOT make it too thin 9 Return the front panel to its normal position and secure it to the machine 10 Instruct the user in the operation of the machine and its maintenance requirements 11 Fill out and mail the warranty registration form or register it on line at www scotsman ice com May 2015 Page 20 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Ice Thickness and Water Purge Adjustment Bridge Thickness For the Service Tech Only 1 Push and hold Off till the machine stops 2 Remove evaporator cover 3 Remove left curtain 4 Use a hex wrench and rotate the bridge thickness adjustment screw in 1 16 turn increments CW to increase bridge thickness
34. ick connects off If line set does not have quick connects must use KTE6 EH stub kit to add for condensing unit end Ice making head has If line set has quick connects recover If line set does not have quick quick connects prior refrigerant from line set and cut one end connects must use KTE6 EH stub kit models of EH330 and of quick connects off to add for ice machine end EH430 If line set does not have quick connects Use the quick connects to make the must use KTE6 EH stub kit to add for ice connection machine end In all cases the line set will need to be shortened to fit Do NOT leave excess line set exposed outdoors especially on a roof Refrigerant Recovery and System Evacuation Notice In the event the refrigerant must be recovered from this system and the system evacuated recover and evacuate from the three ball valve access valves July 2013 Page 13 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Place Ice Making Head Remove from carton Remove all panels Utility Connection Route Electrical The unit is supplied with a power cord There is also an interconnecting control wire that must be routed between the ice making head and the condensing unit Water Supply The water supply can be routed from the top or back Drain The drain must be routed out the back Refrigeration Tubing Field bending will allow the tubing to be routed up or towards the back Adap
35. ing drain Follow local codes for drain air gap Use rigid drain tubes and route them separately do not Tee into the bin s drain Vent the reservoir drain A vertical vent at the back of the drain extended about 8 10 will allow the gravity drain to empty and also keep any surges during draining from discharging water Horizontal runs of drain tubing need a per fall per foot of run for proper draining Follow all applicable codes Refrigeration Connections Reservoir Drain Fitting July 2013 Page 16 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Connect Refrigeration Requires brazing steps must be performed by an EPA certified type Il or higher technician At Head 1 Remove protective plugs from all three connections and vent the nitrogen from the ice machine 2 Route the each of the three tubes to its connection 3 Remove the top panel and attach a refrigeration hose with depressor to the 1 2 inch ID vapor line access valve so the valve is OPEN This is a vent for nitrogen purging 4 Clean tubing ends and position into the couplings At Condensing Unit 1 Confirm connection valves are fully closed 2 Remove protective plugs from all three connections Remove caps from access valve connections Remove cores from access valves Connect refrigeration hoses to access valves S DI dm Q Connect dry nitrogen source to liquid line
36. ir Note If the water reservoir does not fill within the time period expected the controller will shut off and switch on the water indicator light It will re try to fill the reservoir in 20 minutes If successful the freeze cycle will continue 4 The compressor and fan motor start and the freezing process begins Note The controller is connected to two external relays in the EH head one for the condensing units compressor contactor and the other for the its solenoid valves A separate 24 volt transformer is in the condensing unit supplying power to the contacts of these two line voltage relays through the interconnecting wire 5 The controller will shut the water pump off for a few seconds when the reservoir s water temperature reaches a pre set point 6 The freeze cycle continues until water makes continuous contact with the ice thickness sensor That signals the controller to terminate the freeze cycle and begin the harvest cycle The Ready to Harvest light will be ON July 2013 Page 36 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Harvest Cycle Sequence of Operation When harvest begins the controller connects power to the external relay for the condensing unit s solenoids It also connects power to the vapor inlet solenoid valves in the cabinet of the EH head The vapor inlet solenoid valves and the condenser bypass valve open The receiver inlet solenoid valve closes Vapor flow
37. lean water system See page 27 Scrub evaporator spillway See page 26 May 2015 Page 41 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Service Diagnosis Problem or Symptom Possible Cause Probable Correction Low capacity Dirty condenser Air temperature intake to condens Re orient condenser to avoid hot er very high air intake Water temperature intake to ice Check for hot water supply to ice making section very high machine due to mal functioning or non existent hot water check valve at dishwashing sink Ice broken up and stuck between Ice thickness set too thin reservoir and curtain happens Ice very uneven check superheat almost every cycle Slow harvest check headmaster Storage bin or dispenser not hold Check drains for water flow from ing ice properly ice machine separate to correct or restriction High volume of drinks dispensed Suggest pre cooler for water sup cold plate melting ice ply to cold plate Vapor inlet valve leaks through Check valve body for similar slightly during the freeze cycle temperatures on inlet and outlet the outlet should be colder and frost develops on the tubes to the evaporators Exceeding maximum freeze time Check condenser bypass valve compressor unit trips on high dis charge temp Poor ice formation very cloudy Dirty water system Clean the water distributor to re and misshapen move built up mineral scale Low refrigerant charge Add several
38. ll blink and the display will show steady The machine will drain the reservoir and refill it Go onto the next step when the purge 12 Remove curtains from unit valve light goes out 11 Mix a cleaning solution of 1 oz of ice machine cleaner to 12 ounces of water 13 Locate ice thickness sensor Squeeze mounting 6 Pour 24 ounces of Scotsman Clear 1 nickel safe legs together to release sensor scale remover into the reservoir 14 Remove water distributors from ice machine by Ice machine scale remover disconnecting hoses squeezing the retaining contains acids Acids can snaps together and pulling each distributor cause burns forward until it stops Lift up to remove Inspect distributor for restricted orifice holes Be sure all If concentrated cleaner comes holes are full open in contact with skin flush with water If swallowed do NOT induce vomiting Give large amounts of water or milk Call Physician immediately Keep probes from housing and wash all surfaces with out of the reach of children ice machine scale remover solution Return probes to holder 15 Locate water level sensor Squeeze catches together and pull up to remove sensor Separate 16 Wash the metal surfaces of the ice thickness sensor and the adjustment screw with ice machine cleaner solution Also wash the water distributor water level sensor probes and curtain with the ice machine cleaner solution 7 Allow the ice machine cle
39. me expires Default harvest time is 3 minutes The machine will then return to a normal freeze cycle Water Interruption The controller will attempt to fill the reservoir every twenty minutes until it is successful July 2013 Page 38 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Controller Operation Control Button Use from standby status light off Set purge level 1 5 1 is minimum 5 is maximum or Automatic Hold off button in for 3 seconds Release Press and release the On button to cycle through and select one of the five purge settings or to use the automatic setting Recall diagnostic code e Hold off button in for 3 seconds Release Press and release the Harvest button to cycle through each of the last 10 error codes from most recent to oldest Clear diagnostic code Hold Clean and Harvest buttons in for 3 seconds to clear all prior codes Reset control e Depress and release Off then depress and release On Start Test Mode e Hold Off button in for 3 seconds Release e Hold Clean button in for 3 seconds Release Lock Unlock control Hold On button in for seconds keep holding then press and release Off twice Empty reservoir Hold Clean button in for 3 seconds Release Pump and purge valve will be ON for 30 seconds Repeat as needed Test Mode e Depress Off for 3 seconds release Then depress Clean for 3 seconds The sump will
40. n this condensing unit 1 Shut unit off Confirm ball valves are in the open position 2 To speed recovery use 3 Schrader valve removal access port tools and remove the valve cores from the ball valve access valves 3 Attach refrigeration manifold to all three ports use two manifolds or two extra hoses and a tee If only two connections are available connect to Liquid and Suction For single point recovery connect to liquid ball valve 4 Attach recovery system and recover refrigerant Core Removal amp Access Valve Example Suction July 2013 Page 45 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual System Isolation Note If the condensing unit is operable the head may be isolated from the condensing unit 1 Attach suction line gauge to condensing unit ball valve access valve 2 Unplug the liquid line solenoid valve receiver inlet coil 3 Shut the system off at the head push and hold the OFF button until it stops 4 Close the Liquid line and Vapor line ball valves 5 Push the head s manual harvest button or connect 115 volt power to head s vapor valve s and manually operate the compressor contactor 6 Close the suction line ball valve when suction pressure drops to zero PSIG 7 Shut the system off Refrigerant is isolated to the condensing unit Step 1 Attach Step 4 Close ep ach gage This Valve Step 4 Close This Valve July 2013 Page 46 EH330 E
41. ns If this occurs again in the next three cycles the machine will shut down and must be manually reset Max harvest time 3 5 minutes If the harvest cycle has continued for 3 5 minutes without the curtain opening the controller will shut the machine off for 50 minutes and then restart If there is another the machine will shut the machine off for another 50 minutes and then restart If it fails a third consecutive time the controller will shut the machine down and must be manually reset Time between resets 50 minutes Number of automatic resets 2 Max water fill time 5 minutes Machine will attempt a restart every 20 minutes Max discharge temp 250 degrees F Time interval between cleanings 6 months power on time adjustable in one month increments can be set at 6 5 4 or 3 months of power up time Manual harvest time 3 minutes Pump down interval remote only 12 hours Pump down is 30 seconds of compressor only on time e Minimum compressor off time 4 minutes e Continuous Run Time Maximum Cycles 25 Restarts Power Interruption The controller will automatically restart the ice machine after adequate voltage has been restored e Hblinks on code display Status indicator light blinks Reservoir is drained and refilled Default harvest is initiated The curtain switch does not have to open to terminate harvest harvest will continue until the default harvest ti
42. out of the condenser and through the normally open liquid line outlet valve on its way to the receiver inlet Under low ambient low pressure conditions the headmaster valve closes the liquid outlet of the condenser and opens a bypass route to direct refrigerant gas to the receiver inlet until discharge pressure builds back up to the headmaster s set point From the receiver liquid outlet liquid refrigerant flows into the liquid line and into the ice making section At the ice making section the refrigerant flows into the expansion valves where a pressure change takes place The liquid refrigerant moves from the expansion valves into a low pressure area the evaporators where it can rapidly evaporate and absorb heat Heat is absorbed from the copper evaporator tubing attached copper and the water flowing over the evaporator The low pressure refrigerant gas then flows into the suction line which carries it back to the condensing unit where it enters the accumulator In the accumulator most of any liquid carried with the suction gas is separated and Condenser only vapor flows out of the accumulator through the CPR valve and to the compressor where the cycle continues During harvest discharge gas flows through the open condenser by pass valve into the vapor line Power is also applied to the coil of the liquid inlet valve closing it At the same
43. ow Side Cuber Service Manual System Operation This section is intended for the technician Understanding it is not necessary for the normal operation and maintenance of this ice making system Major Components Ice making section sub system Controller e Water Level Sensor Transformer Evaporators Expansion Valves Vapor Inlet Valves Water Pump Inlet Water Valve Purge Valve Harvest Assist Solenoid Condensing Unit Compressor Contactor Condenser Bypass Valve e Liquid Inlet Valve Receiver Accumulator CPR Valve Headmaster Coils e Fan Motor Freeze In the air cooled condensing unit sub system the compressor is on the condenser by pass valve is closed the fan motor is rotating the fan blade Harvest During harvest the compressor and fan motor continue to operate The vapor inlet condenser bypass receiver inlet solenoid normally open and harvest assist solenoids are energized Ice releases and falls into the bin or dispenser July 2013 Page 34 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Refrigeration Details The compressor provides the force that circulates refrigerant in the refrigeration system During freeze when the vapor inlet and condenser by pass valves are closed discharge gas flows from the compressor into the condenser where its heat is discharged into the air stream Liquid refrigerant flows
44. r dispensers it may be necessary to drill small holes and use field supplied sheet metal screws to secure the ice making head to that bin dispenser or adapter If the ice maker amp bin or dispenser is not yet in its final position gently move it there Note The refrigerant lines above the machine must be able to move freely while the machine is being moved into position Final Check List Before Initial Start Up 1 Confirm that the ice making section is installed indoors in a controlled environment 2 Confirm that all packing materials have been removed from all products 3 Confirm that the ice making section is level 4 Confirm that all the refrigerant connections have been made and checked for leaks 5 Confirm that the proper power supply has been turned on to the condensing unit 6 Confirm that cold potable water has been supplied to the ice making section and checked for leaks 7 Confirm that the water supply is adequate 8 Confirm that there is adequate water pressure and that any water filters have been checked to confirm that the cartridges do not need changing 9 Confirm that the proper size drain tubing has been installed and properly routed 10 Confirm that the ice making section has been connected to the proper power supply 11 Confirm that the interconnecting wire has been routed and connected between the ice making section and the condensing unit July 2013 Page 18 EH330 EH430 and EC
45. rate without this harness Exposed tubing Minimize the amount of tubing exposed outdoors July 2013 Page 10 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual System Example July 2013 Page 11 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Place Remote System Roof preparation Most installations of this system will place the condensing unit on the roof of a building The roof must be physically able to accept the load of the equipment and the roofing material must be prepared to prevent water leaks Follow local codes for the placement and attachment of the equipment Location The condensing unit requires unobstructed air flow to operate efficiently A four foot space between each intake side and a wall or other cabinet is recommended Do not place where it will pick up hot discharged air from an air conditioner or other refrigeration system condensing unit Space must also be reserved for service on the condensing unit Roof Piercing The roof or wall must have an opening large enough for the three refrigeration tubes and the control wire to pass through The minimum recommended size is 4 ID In most areas the power supply may also pass through the same passage If there isn t a passage one must be created In most cases this must be done by a licensed and bonded roofer in order to maintain the roof s integrity
46. release the Off button 24 Return the evaporator cover and front panel to their normal position and secure with the original fasteners 25 Push and release the On button to resume ice making Other Maintenance The remote air cooled condenser coil must be cleaned occasionally to keep the system operating at high efficiency Remove any large debris from the outside of the coil Vacuum accumulated dust Wash out the coils with water Caution Do NOT use excessive water pressure as that will bend the fins If the coils have become coated with grease a coil cleaner will have to be used to wash the coils Disconnect power to the condensing unit and remove the condenser top Inspect the fan blade to be sure it is not cracked and is clean Return the condenser top to its original position and reconnect the power supply July 2013 Page 23 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Cleaning Sanitation and Maintenance D Series This ice system requires three types of maintenance e Remove the build up of mineral scale from the ice machine s water system and sensors Sanitize the ice machine s water system and the ice storage bin or dispenser e Clean the remote air cooled condenser It is the User s responsibility to keep the ice machine and ice storage bin in a sanitary condition Without human intervention sanitation will not be maintained Ice machines also require occa
47. s from the condensing unit to the EH head evaporator inlets The water pump and purge valve will be on for a period of time during the first part of harvest to purge the water reservoir of a portion of the water The inlet water solenoid valve opens to fill the reservoir when the water level sensor indicates an empty sump It continues to fill when the pump and purge valve have shut off and will stop filling when the water level sensor senses a full sump Harvest will continue until both curtains have opened The curtain switch attached to the edge of each curtain will sense the curtain opening If the curtains both close harvest will terminate and the freeze cycle will resume If one or both of the curtains remains open for 30 seconds the machine will shut down July 2013 Page 37 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Control Safeties Max freeze time 45 minutes When exceeded the controller will attempt another freeze cycle If the condition is exceeded again the next cycle the control will again attempt another freeze cycle If the freeze cycle exceeds the maximum time in 3 consecutive cycles the controller will shut the machine off and it must be manually reset Min freeze time 6 minutes If the controller switches the machine into harvest within 20 seconds of the minimum freeze time the controller will harvest for a preset time and does not stop if the curtain switch ope
48. sing unit does not operate nected reconnect it check system pressures No power to compressor contactor coil Check toggle switch in condensing unit No water to ice making section controller Restore water supply check water blinking water light filters reset controller Check inlet water valve operation Check water level sensor Ice making section has exceeded Condenser coils may need cleaning maximum freeze time and controller has Check condenser fan blade and shut down the system motor Check for excessive air intake tem peratures at condenser coil Check compressor contactor Check compressor and starting components Check water pump Check purge valve for leak through Check vapor inlet valve for leak though Ice making section has exceeded maxi Check ice making section for lime mum harvest time and shut down the scale build up clean as needed system Check condenser by pass valve Check vapor inlet valve Check headmaster Check curtain switch Check inlet water valve for leak through Check for obstruction in ice delivery chute Check solenoid relay in EH head during harvest July 2013 Page 40 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Service Diagnosis Problem or Symptom Possible Cause Probable Correction No refrigeration unit shut down Check compressor refrigerant maximum freeze time code dis charge and liquid inlet valve Note played that if liquid inlet valve is not open compressor
49. sional cleaning of their water systems with a specifically designed chemical This chemical dissolves mineral build up that forms during the ice making process Sanitize the ice storage bin as frequently as local health codes require and every time the ice machine is cleaned and sanitized The ice machine s water system should be cleaned and sanitized a minimum of twice per year 1 Remove the front panel 2 Remove the evaporator cover 3 Remove all ice from the storage bin or dispenser 4 Push and release the Clean button The yellow Clean light will blink and the display will show C The machine will harvest any ice drain the reservoir and begin to refill it Remove all ice from the storage bin or dispenser 5 Observe code display when it blinks the characters A d 1 immediately go to the next step Observe code display when it blinks the characters A d 1 immediately go to the next step 6 Pour 24 ounces of Scotsman Clear 1 ice machine scale remover into the reservoir The unit will circulate the scale remover then drain and flush it This will take 35 minutes then the machine will stop and the display will show O 7T Mixa cleaning solution of 1 oz of ice machine cleaner to 12 ounces of water Ice machine scale remover A CAUTION acids Acids can cause burns If concentrated cleaner comes in contact with skin flush with water If swallowed do NOT induce vomiting Give large amounts of water or milk
50. ssive water pressure as that will bend the fins If the coils have become coated with grease a coil cleaner will have to be used to wash the coils Disconnect power to the condensing unit and remove the condenser top Inspect the fan blade to be sure it is not cracked and is clean Return the condenser top to its original position and reconnect the power supply May 2015 Page 25 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Critical Maintenance Spillway The freeze cycle on a Prodigy cuber is controlled by an ice thickness sensor positioned in front of the ice making surface It is triggered by water contact Normally water only contacts the sensor when the ice is at the proper size However irregular water flow can cause premature contact resulting in a short freeze cycle small bridge long harvest and even a shut down on short freeze code 8 The primary procedure for correcting poor water flow is to scrub the spillway surface 1 Shut machine off 2 Remove right side panel liner and panel 3 Disconnect ice thickness sensor from its bracket and move out of the way 4 Scrub 4 to 6 strokes across the normal flow of water A clean nylon scrubbing pad is the recommended tool Spillway Surface 5 Reassemble all components and retest operation LET i r p Other short freeze causes include Mis adjustment of ice thickness sensor
51. suspended solids Some filters or filter systems have treatment chemicals in them for treating the suspended solids This ice machine has an adjustment for the amount of water rinsed or purged Water use adjustments are customer convenience adjustments they are not factory defects and are not covered by warranty July 2013 Page 9 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Create the System Plan the installation The system consists of three parts the ice making head the condensing unit and the interconnecting tubing Of these the biggest variable is the interconnecting tubing Tubing The tubing consists of three insulated and sealed soft copper tubes One tube the liquid line is 3 8 OD The vapor tube is gt OD and the suction tube is OD A site inspection will determine what length of tubing is required for the installation In 2013 Scotsman made a change to the Eclipse tubing kits Prior Tubing Kits They each contain a small holding charge of R 404A and have quick connects at the ends Current Tubing Kits The do not contain any refrigerant and do not have quick connects Either type can be used to connect the head and condensing unit Quick Connect type Check ice making head and condensing unit for quick connects If none recover refrigerant from tubing and cut the quick connects off If the head or condensing unit has a quick connect recover refrigerant an
52. ters In many cases an adapter kit will be required when placing the head unit on a bin or dispenser See sales information for the correct kit Place adapter kit onto bin or dispenser top If adapter does NOT have gasket tape install tape such as Scotsman part number 19 0503 04 Note External drain tubing must be supported to insure that it does not move and kink the internal rubber tube Communication Cable Plug the interconnecting communication cable into the harness at the back of the head unit s electrical box Connect Communication Cable Here July 2013 Page 14 EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Condensing Unit Electrical Route interconnecting control wire through proper hole in side of CU unit and plug into the connection on the side of the control box Route power conduit liquid tight and wires to the hole in the side of the CU unit Connect to wire leads or terminal strip if used with the proper type of connector Note The power supply wires must be the correct size and type per the National Electric Code Locate the nameplate on the CU unit for the Voltage Phase Minimum Circuit Ampacity and Maximum Fuse Size Either fuses or HACR type circuit breakers may be used Follow all Local State and National Codes Three Phase Notice Check voltage between legs at contactor If there is a wild leg in the three phase power supply move supply
53. uching the shortest probe SW2 on when the curtain is open SWl1 on when the curtain is open Cycle Definitions Freeze The refrigeration system is operating to remove heat from the evaporators The compressor fan motor and water pump are on Harvest The refrigeration system and water system are operating to harvest the ice and rinse the reservoir The compressor is on for the full cycle the pump is on until the purge valve closes The inlet water valve opens and refills the reservoir The vapor and condenser by pass valves are open during the entire harvest cycle as are the harvest assist mechanisms May 2015 Page 19 EH330 430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Initial Start Up Pre Start A soak out period of four hours is optional for this system If desired powering the compressor unit for four hours prior to start up allows the crankcase heater to warm up the oil in the compressor Start Up 1 Connect power to the condensing unit and move its toggle switch to Run or On 2 Open the water supply valve 3 Remove the head s front panel Check for any packing or wires rubbing moving parts Note location of control board in upper left corner of the machine s front 4 Remove any tape securing curtain to evaporator 5 Switch on the electrical power to the EH head Observe that some of the control s indicator lights glow and its display shows 8 6 Locate lower light
54. will pump down and suction pressure will be very low Check for welded contactor No water to ice making section Water level sensor working prop Clean or replace sensor erly Slow ice release during harvest Cubes are too large Check ice thickness sensor Check for water leak Condenser by pass valve does not Check coil of valve open Check power to valve during har vest No ice sensed during harvest Ice sensing system failure Check curtain switch No ice released to bin Ice outlet blocked check for ob struction No ice released vapor inlet valve Check coil for continuity if open does not open replace coil Check for 24 volts to coil during harvest if none check at relay in EH head Check low side pressure if pres sure does not rise during harvest and valve is electrically OK re place vapor inlet valve No ice Code 1 Displayed Freeze cycle too long Check for false sump full indication See page 28 Check condensing unit operation Check refrigeration including head pressure control valve vapor valve bypass valve Check water valve for leak thru Check purge valve for leak thru No ice Code 2 Displayed Harvest cycle too long Check harvest assist Check for false sump full Check curtain switch Check bypass and vapor valve operation No ice Code 3 Displayed Water supply inadequate Check water supply and inlet water solenoid valve No ice Code 8 Displayed Freeze cycle too short Check clean ice thickness sensor C
55. wires so the higher voltage is on L3 of the contactor which connects to the compressor motor only lt C y a Jf Bv gt 7 SN y Di Ls 9 li ar f y ju July 2013 Page 15 Electrical Junction Box Dataplate Location Communication s p Cable Y SS EH330 EH430 and ECC Condensing Unit Remote Low Side Cuber Service Manual Water and Drain All models require connection to cold potable water A hand actuated valve within sight of the machine is required There is a single 3 8 FPT inlet water connection Water Filters Install a new cartridge if the filters were used with a prior machine All models require drain tubing to be attached to them There is a single 74 drain fitting in the back of the cabinet Install new tubing when replacing a prior ice machine as the tubing will have been sized for the old model and might not be correct for this one 1 Connect water supply to water inlet fitting Note This NSF listed model has a 1 anti back flow air gap between the potable water inlet tube end and the highest possible reservoir water level no back flow device is required Water Inlet 2 Connect drain tubing to drain fitting 3 Route the drain tubing to build
56. ystem and sensors Clean the remote air cooled condenser It is the User s responsibility to keep the ice machine and ice storage bin in a sanitary condition Without human intervention sanitation will not be maintained Ice machines also require occasional cleaning of their water systems with a specifically designed chemical This chemical dissolves mineral build up that forms during the ice making process Sanitize the ice storage bin as frequently as local health codes require and every time the ice machine is cleaned and sanitized The ice machine s water system should be cleaned yellow Clean light will be on continuously and the and sanitized a minimum of twice per year machine will drain and refill the reservoir to flush out the ice machine cleaner and residue 1 Remove the front panel 9 Allow the drain and refill process to continue for at 2 Remove the evaporator cover least 20 minutes 3 If the machine is operating push and release the Harvest button When the machine completes the Harvest cycle it will stop If the bin is full 6 shows in display push and release the Off button Note If unit has not been de scaled for an extended period of time and significant mineral scale remains repeat steps 5 10 10 Push and release the Off button The clean cycle will stop and the display will show 4 Remove all ice from the storage bin or dispenser 5 Push and release the Clean button The yellow Clean light wi

Service Manual - Scotsman Ice Systems

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