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Manitowoc SD0672C, Technician'S Handbook, Page: 144 / 298

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Manitowoc SD0672C Technician'S Handbook Download Page 144

144

Part N

u

mber 80-

1505-

3 6/11

Safety Limits

Refer to “Analyzing 
Safety Limits” page 125 to 
eliminate all non-refrigeration 
problems.

Stops on 

safety limit:

1 or 2

Stops on 

safety limit:

1 or 2

Stops on 

safety limit:

1 or 2

Stops on 

safety limit:

1

Freeze Cycle 
Discharge Pressure

 ________

   

             

        

________                  ________

  1 minute      Middle        End

If discharge pressure is High or Low, refer to Freeze cycle high or low discharge 

pressure problem checklist page 157 & page 158 to eliminate problems and/or components not listed on 

this table before proceeding.

Freeze Cycle 
Suction Pressure

 ________

   

             

        

________                  ________

  1 minute      Middle        End

If suction pressure is High or Low, refer to Freeze cycle high or low suction pressure problem checklist 

page 160 & page 161 to eliminate problems and/or components not listed on this table before 

proceeding.

Suction pressure is

High

Suction pressure is

Low or Normal

Suction pressure is

High or Normal

Suction pressure is

High

Twin Expansion Valve – S1470C/S1870C/S2070C/S2170C

Operational Analysis

1

2

3

4

Summary of Contents for SD0672C

Page 1: ...c This manual is updated as new information and models are released Visit our website for the latest manual www manitowocice com America s 1 Selling Ice Machine S Model Ice Beverage QuietQube Ice Machines Part Number 80 1505 3 6 11 ...

Page 2: ......

Page 3: ...st you as you work Throughout this handbook you will see the following types of procedural notices Warning Text in a Warning box alerts you to a potential personal injury situation Be sure to read the Warning statement before proceeding and work carefully Caution Text in a Caution box alerts you to a situation in which you could damage the equipment Be sure to read the Caution statement before pro...

Page 4: ...ered by this handbook do not proceed contact Manitowoc Foodservice Group We will be happy to provide assistance Important Routine adjustments and maintenance procedures outlined in this handbook are not covered by the warranty Warning PERSONAL INJURY POTENTIAL Do not operate equipment that has been misused abused neglected damaged or altered modified from that of original manufactured specificatio...

Page 5: ...d Section Clearance Requirements 24 Stacking Two Ice Machines on a Single Storage Bin 25 Ice Deflector 25 Removing the Front Panels 26 Location of CVD Condensing Unit 27 Condensing Unit Clearance Requirements 28 Bin Installation 29 S1470C S1870C S2070C S2170C Installation on a Manitowoc Bin 31 Ice Machine on a Dispenser Installation 33 Ice Machine Head Section Water Supply and Drains 36 Water Cool...

Page 6: ...g Sanitizing Procedure 74 Cleaning Procedure 74 Parts Removal for Cleaning Sanitizing 76 Sanitizing Procedure 83 Procedure to Clean Heavily Scaled Ice Machines 85 General 85 Cleaning Procedure 85 Parts Removal for Cleaning Sanitizing 88 Sanitizing Procedure 102 Additional Component Removal 104 Removal from Service Winterization 109 General 109 CVD1486 Water Cooled Condensing Unit 110 Sequence of O...

Page 7: ... Run 133 Diagnosing a Condensing Unit That Will Not Run 134 Compressor Electrical Diagnostics 135 Symptom 2 Low Production Long Freeze Cycle 138 Symptom 2 Refrigeration System Opera tional Analysis Tables 140 Symptom 2 Freeze Cycle Refrigeration System Operational Analysis Table Proce dures 149 Symptom 3 Ice Will Not Harvest 166 Ice Machine will Not Harvest Diagnostics 166 Harvest Problems 167 Sym...

Page 8: ... Refrigeration Components 204 Refrigerant Charge Verification 204 Suction Accumulator Operation 206 Headmaster Control Valve 207 Headmaster Valve Water Cooled Condens ing Unit CVD1476 212 Water Regulating Valve CVD1476 214 Fan Cycle Control 215 High Pressure Cutout HPCO Control 216 Low Pressure Cutout LPCO Control 217 Refrigerant Recovery Evacuation 218 Connections 219 Recovery Evacuation Procedur...

Page 9: ...39 S0600C CVD0675 Series Remote Air Cooled 240 SD0682C CVD0685 Series Remote Air Cooled 241 SY0684C CVD0685 Series Remote Air Cooled 242 IB0600C CVD675 Series Remote Air Cooled 243 IB0682DC CVD685 Series Remote Air Cooled 244 IB0684YC CVD685 Series Remote Air Cooled 245 SD0872C SY0874C CVD0885 Series Remote Air Cooled Machines Before Serial Number 110682385 246 SD0872C CVD0885 Series Remote Air Co...

Page 10: ...22DC IB1024YC CVD1075 CVD1085 CVD1285 Series Remote Air Cooled Machines Before Serial Number 110697294 255 IB1022DC CVD1185 Series Remote Air Cooled Machines After Serial Number 110697294 256 IB1024YC CVD1185 Series Remote Air Cooled Machines After Serial Number 110697294 257 SD1272C SY1274C CVD1285 Series Re mote Air Cooled Machines Before Serial Number 110706336 258 SD1272C CVD1285 Series Remote...

Page 11: ...0C 1000C S1200C 272 S600C S680C S850C 1000C S1200C 273 S1470C S1870C S2070C S2170C 274 S3070C 115 60 1 275 S3070C 230V 50Hz 1Ph 276 IB0600C IB0800C IB1000C with S Control Board and Electronic Bin Thermostat 277 IB0600C IB0680C IB0800C IB1000C with Air Assist S Control Board Electronic Bin Thermostat 278 CVD675 CVD685 CVD885 CVD1075 CVD1085 CVD1185 CVD1285 CVD1485 CVD1486 CVD1885 CVD2075 CVD3085 1 ...

Page 12: ...ng Schematics 287 S600C S680C S850C S1000C S1200C 287 S600C S680C S850C S1000C S1200C 288 Ice Beverage IB0600C IB0680C IB0800C IB1000C 289 Ice Beverage IB0600C IB0680C IB0800C IB1000C 290 S1470C S1870C S2070C S2170C 291 S1470C S1870C S2070C S2170C 292 S1476C Water Cooled Condenser 293 S3070C Without Check Valve 294 S3070C With Check Valve 295 ...

Page 13: ...5 SD0682C SY0684C IB0684YC IB0682DC CVD0685 SD0872C SY0874C IB0824YC IB0822DC CVD0885 SD1072C SY1074C CVD1085 IB1024YC IB1022DC CVD1185 CVD1285 CVD1085 CVD1075 SD1272C SY1274C CVD1285 SD1472C SY1474C CVD1485 CVD1486 SD1872C SY1874C CVD1885 SD2072C SY2074C CVD2075 SD2172C SY2174C CVD2085 SD3072C SY3074C CVD3085 For 3 phase electrical option add the number 3 to end of model number CVD10853 ...

Page 14: ...R COOLED WATER COOLED AIR COOLED WATER COOLED AY Y SELF CONTAINED AIR COOLED WY Y SELF CONTAINED WATER COOLED CY Y CVD REMOTE AIR or WATER COOLED DC CVD REMOTE AIR COOLED DICE YC CVD REMOTE AIR COOLED HALF DICE 7 CVD REMOTE AIR COOLED CONDENSER TYPE ICE MACHINE SERIES ADDITIONAL SPECS 3 3 PHASE SI INCLUDES AuCS SI BUILT IN CVD 1485 3 CONDENSING UNIT MODEL 3 PHASE CONDENSING UNIT SERIES 5 AIR COOLE...

Page 15: ...by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision concerning use of the appliance by a person responsible for their safety Warning All Manitowoc ice machines require the ice storage system bin dispenser etc to incorporate an ice deflector Prior to using a non Manitowoc ice storage system wi...

Page 16: ...TION CARD They are also listed on the MODEL SERIAL NUMBER DECAL affixed to the ice machine ENERGY EFFICIENT ICE MACHINE SERIAL BREAKS Some specifications have changed since our release of Energy Efficient machines The following machines have a serial break to indicate when they became Energy Efficient Series Ice Machine Serial Break for Energy Efficient Machines S850C 110682385 S1000C 110697654 S1...

Page 17: ...the ice machine is installed If the OWNER WARRANTY REGISTRATION CARD is not returned Manitowoc will use the date of sale to the Manitowoc Distributor as the first day of warranty coverage for your new ice machine Important Complete and mail the OWNER WARRANTY REGISTRATION CARD as soon as possible to validate the installation date ...

Page 18: ... against defects in materials and workmanship under normal use and service for three 3 years from the date of original installation 2 The evaporator and compressor are covered by an additional two 2 year five years total warranty beginning on the date of the original installation LABOR 1 Labor required to repair or replace defective components is covered for three 3 years from the date of original...

Page 19: ...ayment schedule Additional labor charges resulting from the inaccessibility of equipment are also excluded 5 Parts or assemblies subjected to misuse abuse neglect or accidents 6 Damage or problems caused by installation cleaning and or maintenance procedures inconsistent with the technical instructions provided in this manual AUTHORIZED WARRANTY SERVICE To comply with the provisions of the warrant...

Page 20: ...ect arises and Manitowoc receives a valid warranty claim prior to the expiration of the warranty period Manitowoc shall at its option 1 repair the Product at Manitowoc s cost including standard straight time labor charges 2 replace the Product with one that is new or at least as functionally equivalent as the original or 3 refund the purchase price for the Product Replacement parts are warranted f...

Page 21: ...m improper or unauthorized alterations modifications or changes and 5 defects or damage to any Product that has not been installed and or maintained in accordance with the instruction manual or technical instructions provided by Manitowoc To the extent that warranty exclusions are not permitted under some state laws these exclusions may not apply to you EXCEPT AS STATED IN THE FOLLOWING SENTENCE T...

Page 22: ...NTRACT TORT OR ANY OTHER THEORY OF LIABILITY Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you HOW STATE LAW APPLIES This limited warranty gives you specific legal rights and you may also have rights that vary from state to state or from one jurisdiction to another REGISTRATION CARD To secure prompt...

Page 23: ...1000C Ice Beverage Ice Machines require the installation of a thermostat to maintain dispenser ice level The thermostat ships with the ice machine The ice machine head is installed with the electrical inlet water supply inlet refrigeration tubing and water drain entering from the back of the ice machine The ice machine head section contains a service loop that must remain installed between the ice...

Page 24: ...7 cm is recommended for efficient operation and servicing There is no minimum clearance required Back 3 7 6 cm required when routing electrical inlet water inlet and refrigeration tubing out of the top of the unit 5 12 7 cm required when routing all connections out the back IB0600CIB0680C IB0680C IB0800C IB1000C Top 2 5 1 cm required clearance for cleaning procedures and servicing Back 5 12 7 cm r...

Page 25: ... required for all ice machines installed on a bin Caution The ice machine head section must be protected if it will be subjected to temperatures below 32 F 0 C Failure caused by exposure to freezing temperatures is not covered by the warranty See Removal from Service Winterization page 109 Warning S1470C S1870C S2170C ice machines are not approved for use on Manitowoc B570 bins Warning 30 large ca...

Page 26: ...hine 2 Loosen screws Do not remove they are retained by o rings to prevent loss 3 To remove right front door lift up and remove Door Removal 4 Open left front door to 45 degrees 5 Support with left hand depress top pin tilt top of door forward and lift out of bottom pin to remove 3 2 5 ...

Page 27: ...re must be at least 20 F 28 9 C but must not exceed 130 F 54 4 C CVD675 CVD685 CVD1185 CVD2075 CVD3085 Only The air temperature must be at least 20 F 28 9 C but must not exceed 120 F 48 9 C CVD1486 Only The air temperature must be at least 50 F 10 C but must not exceed 110 F 43 C The location must not allow exhaust fan heat and or grease to enter the condenser The location must not obstruct airflo...

Page 28: ...85 CVD1885 Top Sides There is no minimum clearance required although 6 15 2 cm is recommended for efficient operation and servicing only Front 24 61 cm Back 48 122 cm CVD1486 ONLY Top 5 12 7 cm is required for efficient operation and servicing Front Back Sides 12 30 5 cm CVD3085 Top Sides There is no minimum clearance required although 8 20 3 cm is recommended for efficient operation and servicing...

Page 29: ...or kit Bin adapters or custom bin tops are available to allow installation of a 30 ice machine on a 48 or 60 bin Refer to ice machine price list for options http www manitowocice com sales price asp Warning Manitowoc QuietQube ice machines require the ice storage bin to incorporate an ice deflector Prior to using a non Manitowoc ice storage system with other Manitowoc ice machines contact the manu...

Page 30: ...sible 3 Move the bin into its final position 4 Level the bin to assure that the bin door closes and seals properly Use a level on top of the bin Turn each foot as necessary to level the bin Leveling Leg and Foot Caution The legs must be screwed in tightly to prevent them from bending THREAD LEVELING LEG INTO BASE AS FAR AS POSSIBLE ADJUST LEGS TO LEVEL BIN ...

Page 31: ... Remove the stock ice deflector A Remove the left and right side cover screws B Remove the cover to expose four screws which secure the plastic deflector C Remove fours screws and plastic deflector D Install polymer spacer on each side and secure with the four screws E Reinstall cover and screws RE INSTALL TOP COVER REMOVE 1 SCREW ON EACH SIDE REMOVE DEFLECTOR REMOVE 2 SCREWS ON EACH SIDE ...

Page 32: ...nter is 11 from left edge of ice machine to left edge of bracket B Cut and remove foam tape on the front and the back of the bin where the deflector will be located C Remove any residual adhesive areas must be clean and dry D Remove protective covering from double sided tape on bottom of deflector bracket E Install deflector bracket Distribute equally to the front and back and locate pin to the re...

Page 33: ...ed to the dispenser to prevent tipping Two holes are located in the front bottom rail of the ice machine to allow attachment to the adapter plate The adapter cover must be secured to the dispenser to prevent ice from dislodging the cover during agitation Important Manitowoc Ice Beverage Ice Machines require an adapter for mounting Adapters are not included with the ice machine dispenser or bin and...

Page 34: ... be moved towards the back of the dispenser 3 Using the slotted holes in the adapter as a template drill four 4 9 64 diameter holes at the bottom of the slots Note Do not drill deeper than 1 4 past the sheet metal Use a drill stop 4 Fasten the adaptor to dispenser using the four 4 8 screws supplied with the adaptor kit 5 Set the ice machine on top of the adapter Align holes in ice machine front an...

Page 35: ... the bin cover on the adapter move backwards until the cover hits the stop and lower the plastic cover insuring that the latch locks 8 To remove the bin cover twist the knob lift up and pull forward PLACE A LARGE FILLET OF FOOD GRADE RTV INSIDE EDGE ALONG BOTH SIDES WHERE ADAPTER TOUCHES BIN DEFLECTOR MUST STAY IN PLACE ...

Page 36: ...for other equipment are working Check valves on sink faucets dishwashers etc If water pressure exceeds the maximum recommended pressure obtain a water pressure regulator from your Manitowoc Distributor Maximum water pressure 80 psi 551 6 kPA Install a water shut off valve for ice making potable water Insulate water inlet lines to prevent condensation A 3 service loop or disconnect union must be in...

Page 37: ... drain connection 1 FPT Cooling Tower Application Water Cooled Models A water cooling tower installation does not require modification of the ice machine The water regulator valve for the condenser continues to control the refrigeration discharge pressure It is necessary to know the amount of heat rejection and the pressure drop through the condenser and water valves inlet and outlet when using a ...

Page 38: ...er flow through the condenser must not exceed 5 gallons 19 liters per minute Allow for a pressure drop of 8 psig 55 kPA between the condenser water inlet and outlet Water exiting the condenser must not exceed 110 F 43 3 C Do not connect to the potable water filter system Condensing Unit Drain Connections The condensing unit drain is provided to remove any condensate produced by the suction accumul...

Page 39: ...it Breaker Total Amps S0600C S0680C 115 1 60 208 230 1 60 230 1 50 15 amp 15 amp 15 amp 1 1 0 6 0 6 S0850C 115 1 60 230 1 50 15 amp 15 amp 1 1 1 5 IB0620C IB0680C IB0820C IB1020C 115 1 60 230 1 50 15 amp 15 amp 1 4 0 8 S1000C S1200C 115 1 60 230 1 50 15 amp 15 amp 2 5 1 5 S1470C S1870C S2070C S2170C 115 1 60 208 230 1 60 230 1 50 15 amp 15 amp 15 amp 1 1 0 6 0 6 S3070C 115 1 60 230 50 1 15 amp 10 ...

Page 40: ...3 60 230 1 50 25 amp 15 amp 20 amp 15 7 10 8 11 2 CVD1285 208 230 1 60 208 230 3 60 230 1 50 25 amp 20 amp 20 amp 14 7 10 6 11 7 CVD1485 208 230 1 60 208 230 3 60 230 1 50 20 amp 15 amp 30 amp 20 0 15 0 20 0 CVD1486 208 230 1 60 208 230 3 60 230 1 50 20 amp 15 amp 20 amp 20 0 15 0 20 0 CVD1885 208 230 1 60 208 230 3 60 230 1 50 40 amp 25 amp 30 amp 25 0 20 0 20 0 CVD2085 208 230 1 60 208 230 3 60 ...

Page 41: ... CVD675 RC 21 RC 31 RC 51 S0680C IB0680C CVD685 S0850C IB0820C CVD885 S1000C IB1020C CVD1085 S1200C CVD1285 RC 20 RC 30 RC 50 IB1020C CVD1185 CVD1285 CVD1075 S1470C CVD1485 CVD1486 S1870C CVD1885 S2070C CVD2075 S2170C CVD2085 RC 23 RC 33 RC 53 S3070C CVD3085 RC 24 RC 34 RC 54 Line Set Suction Line Liquid Line Insulation Thickness RC 21 31 51 5 8 in 15 9 mm 3 8 in 9 5 mm Suction Line 1 2 13mm Liqui...

Page 42: ...4 4 C With line set lengths of up to 100 feet 30 5 m CVD685 CVD1185 CVD2085 CVD3085 20 F to 120 F 29 C to 49 C CVD1486 50 F to 110 F 10 C to 43 C Important Manitowoc remote systems are only approved and warranted as a complete new package Warranty on the refrigeration system will be void if a new ice machine head section is connected to pre existing used tubing or condensing units or vice versa Ca...

Page 43: ...ed with atmospheric pressure Warning Potential Personal Injury Situation The ice machine head section contains the refrigerant charge Installation and brazing of the line sets must be performed by a properly trained and EPA certified refrigeration technician aware of the dangers of dealing with refrigerant charged equipment Warning Installation of a QuietQube Condensing Unit may require the use of...

Page 44: ...or to installation of the ice machine and CVD Condensing Unit be sure that the distance between them is within the line set routing guidelines outlined in this manual Roof Wall Penetration If required cut a 3 inch 76 2 mm circular hole in the wall or roof for routing of refrigeration tubing A qualified person must perform all roof penetrations ROUTE REFRIGERATION TUBING Properly route refrigeratio...

Page 45: ...5 CVD3085 20 F to 120 F 29 C to 49 C CVD1486 50 F to 110 F 10 C to 43 C The maximum amount of lineset which can be exposed on the rooftop is 25 of the total length of the lineset Caution QuietQube Ice Machines will not function with line sets greater than 100 ft 30 5 m Do not attempt to go beyond this distance and add refrigerant charge to compensate Important QuietQube ice machines will not funct...

Page 46: ...35 ft 10 7 m Rise The maximum distance the CVD Condensing Unit can be above the ice machine 15 ft 4 5 m Drop The maximum distance the CVD Condensing Unit can be below the ice machine SV1751 35 FT 10 7 M MAXIMUM DISTANCE SV1750 15 FT 4 5 M MAXIMUM DISTANCE ...

Page 47: ...e trap as close as possible to midpoint between the ice machine head section and CVD Condensing Unit S Trap Kits are available from Manitowoc refer to chart MANITOWOC S TRAP KIT Caution Do not form unwanted traps in refrigeration lines Never coil excess refrigeration tubing Model S Trap Kit Number Tubing Size S600C IB600C S680C IB680C S850C IB800C S1000C K00172 5 8 inch 15 9 mm IB1000C S1200C S147...

Page 48: ...o so before connecting the line set to the ice machine head section or the CVD Condensing Unit Step 5 Connecting the line set To prevent oxidation of the copper purge line set and condensing unit with dry nitrogen while brazing Caution If a line set has a rise followed by a drop another rise cannot be made Likewise if a line set has a drop followed by a rise another drop cannot be made Caution Do ...

Page 49: ...ting requires the use of the supplied 90 elbows The line set shut off valves at the back of the ice machine must remain closed and be protected from heat during the brazing process Wrap the valves in a wet rag or other type of heat sink prior to brazing Cool braze joint with water immediately after brazing to prevent heat migration to the valve VALVES MUST REMAIN CLOSED AND BE PROTECTED FROM HEAT ...

Page 50: ...t supplied plastic bushings in knockout holes to prevent tubing from contacting sheet metal Use the supplied 90 elbows to route tubing Cut the tubing ends of the suction and liquid lines and braze line sets to the condensing unit S3070C Only use the provided tee to connect the 2 suction lines from the head section to the suction line on the condensing unit Warning The condensing unit ships from th...

Page 51: ...Part Number 80 1505 3 6 11 51 LIQUID LINE SUCTION LINE SUCTION LINE FROM HEAD SECTION SUCTION LINE FROM HEAD SECTION SUCTION LINE ON CONDENSING UNIT S3070C TUBING MUST BE CONNECTED TO TEE AS SHOWN ...

Page 52: ... set shut off valves closed front seated All CVD condensing units manufactured after December 2009 contain a check valve in the compressor discharge line The check valve requires an additional connection on the condensing unit during evacuation and recovery procedures Connections are required at five points Ice Machine Head Section 1 Receiver Service Valve 2 Low Side Access Valve 3 High Side Acces...

Page 53: ...e sets and CVD Condensing Unit with 150 psig of dry nitrogen Add nitrogen at the line set shut off valves located at the back of the ice machine head section or from the schrader valves located in the CVD Condensing Unit Complete the pressure test verify no leaks are present and remove the nitrogen from the system before connecting the vacuum pump CHECK VALVE CONNECT MANIFOLD GAUGE SET OR HOSE WIT...

Page 54: ... valve core removal tools that allow for putting the cores back in without removing vacuum pump hoses will greatly decrease evacuation time Evacuate to 500 microns or less at the CVD condensing unit Isolate the vacuum pump from the line set shut off valves and or condensing unit access ports prior to proceeding CONNECT VACUUM PUMP TO LINE SET SHUT OFF VALVES ALTERNATE CONNECTIONS AT CONDENSING UNI...

Page 55: ...the liquid line shut off valve C Slowly backseat open turn counterclockwise the receiver service valve NOTE You will not hear refrigerant flow when the valves are opened Refrigerant will not flow until the toggle switch is placed in the ice position and the solenoid valve opens USE ALLEN WRENCH TO OPEN TURN COUNTERCLOCKWISE LIQUID AND SUCTION LINE SHUT OFF VALVES USE ALLEN WRENCH TO OPEN TURN COUN...

Page 56: ...56 Part Number 80 1505 3 6 11 USE ALLEN WRENCH TO OPEN TURN COUNTERCLOCKWISE LIQUID AND SUCTION LINE SHUT OFF VALVES OPEN SUCTION AND LIQUID LINE SHUT OFF VALVES S1470C S1870C S2070C S2170C ...

Page 57: ...frigerant pressure will not be detected until the toggle switch is placed in the ice position and the harvest valve energizes Important All refrigeration valve caps must be reinstalled to prevent future refrigeration leaks USE ALLEN WRENCH TO OPEN TURN COUNTERCLOCKWISE LIQUID AND SUCTION LINE SHUT OFF VALVES ...

Page 58: ...E position this will allow refrigerant to enter the line set and condensing unit LEAK CHECK THE REFRIGERATION SYSTEM Leak check the new line set connections at the ice machine head section condensing unit and S trap as well as all factory joints throughout the entire system Disconnect power to the CVD Condensing Unit Place the ICE OFF CLEAN toggle switch in the ICE position This allows the low sid...

Page 59: ...e suction service valve located on the back of the ice machine requires Suction Line Liquid Line Min Insulation Thickness 3 4 inch 19 1 mm 1 2 inch 12 7 mm 1 2 13mm Suction Line 1 4 7mm Liquid Line 5 8 inch 15 9 mm 3 8 inch 9 5 mm 3 4 inch 19 1 mm 5 8 inch 15 9 mm Important To prevent condensation the entire suction line including the shut off valve must be insulated All insulation must be airtigh...

Page 60: ...tion over schrader valve cap and left side of valve Position the tab between the mounting bracket and rear panel C Fold insulation and hold against right hand side of valve while securing with electrical tape Seal the line set insulation to the shut off valve insulation with electrical tape PREFORMED INSULATION TIGHTEN VALVE CAPS TO SPECIFICATIONS PLACE TAB BETWEEN VALVE BODY AND PANEL FOLD INSULA...

Page 61: ...ing the ice machine For the First Time After a Prolonged Out of Service Period After Cleaning and Sanitizing Routine adjustments and maintenance procedures outlined in this manual are not covered by the warranty WATER LEVEL The water level sensor is set to maintain the proper water level above the water pump housing The water level is not adjustable If the water level is incorrect check the water ...

Page 62: ...e cubes It should be about 1 8 3 2 mm thick 2 If adjustment is necessary turn the ice thickness probe adjustment screw clockwise to increase bridge thickness counterclockwise to decrease bridge thickness Set at 1 4 gap between ice machine and evaporator as starting point then adjust to achieve a 1 8 bridge thickness NOTE Turning the adjustment 1 3 of a turn will change the ice thickness about 1 16...

Page 63: ...ce water purge the water fill valve energizes and de energizes by time The water purge must be at the factory setting of 45 seconds for the water fill valve to energize during the last 15 seconds of the water purge If it is set to 0 seconds the water fill valve will not energize during the water purge Warning Disconnect electric power to the ice machine at the electrical disconnect before proceedi...

Page 64: ...nt screw tighten D Tighten rear screw 3 Re install water trough 4 Remove slack from sensor probe wire and verify wire does not contact or obstruct the water curtain or water level probe 5 The control is preset and does not require programming For control specifications refer to page page 193 Bin Thermostat Location Control Location Final Position A Loosen Rear Screw B Remove Front Screw Rotate Pro...

Page 65: ...Part Number 80 1505 3 6 11 65 This Page Intentionally Left Blank ...

Page 66: ...66 Part Number 80 1505 3 6 11 This Page Intentionally Left Blank ...

Page 67: ...600C S680C S850C S1000C S1200C WATER CURTAIN CONTROL BOX WATER DISTRIBUTION TUBE TOGGLE SWITCH WATER TROUGH REFRIGERATION ACCESS VALVES ICE THICKNESS CONTROL EVAPORATOR WATER LEVEL PROBE WATER PUMP WATER INLET LOCATION THE WATER INLET VALVE IS LOCATED IN THE REFRIGERATION COMPARTMENT ...

Page 68: ...E THICKNESS PROBE EVAPORATOR SPLASH SHIELD BIN SWITCH WATER TROUGH SHIELD ICE DAMPER WATER TROUGH WATER PUMP DUMP VALVE RECEIVER LIQUID LINE SOLENOID VALVE DRIER ICE OFF CLEAN SWITCH WATER LEVEL PROBE LEFT SIDE HARVEST VALVE TXV SENSING BULB BOOT AIR PUMP EXPANSION VALVE WATER INLET VALVE ...

Page 69: ...WATER CURTAIN DUMP VALVE SHUT OFF VALVES ELECTRICAL COMPARTMENT ICE OFF CLEAN TOGGLE SWITCH ICE THICKNESS PROBE WATER TROUGH COOL VAPOR VALVE LIQUID LINE SOLENOID VALVE RECEIVERS LIQUID LINE DRIER WATER INLET VALVE RECEIVER SERVICE VALVE ELECTRICAL COMPARTMENT DISCHARGE LINE CHECK VALVE ...

Page 70: ...70 Part Number 80 1505 3 6 11 S3070C WATER PUMPS WATER LEVEL PROBE EVAPORATORS WATER TROUGH CONTROL BOX ICE DAMPERS ICE THICKNESS PROBE ICE THICKNESS PROBE ...

Page 71: ... MOTOR HEAD PRESSURE CONTROL VALVE AIR CONDENSER COMPRESSOR SUCTION ACCUMULATOR LIQUID LINE AND SUCTION LINE CONNECTION POINTS ELECTRICAL COMPARTMENT CHECK VALVE ACCESS VALVE LPCO HEAD PRESSURE CONTROL VALVE ELECTRICAL COMPARTMENT COMPRESSOR SUCTION ACCUMULATOR WATER REGULATING VALVE LIQUID LINE AND SUCTION LINE CONNECTION POINTS WATER COOLED CONDENSER ...

Page 72: ... CVD2075 CVD2085 CVD3085 SUCTION ACCUMULATOR COMPRESSOR LIQUID LINE AND SUCTION LINE CONNECTION POINTS AIR CONDENSER HEAD PRESSURE CONTROL VALVE CONDENSER FAN MOTOR CVD3085 HAS 2 FANS ACCESS VALVES ELECTRICAL COMP CHECK VALVE ACCESS VALVE ...

Page 73: ...ines This Manitowoc Ice Machine has two separate cleaning procedures Cleaning Sanitizing Procedure This procedure must be performed a minimum of once every six months The ice machine and bin must be disassembled cleaned and sanitized All ice produced during the cleaning and sanitizing procedures must be discarded Removes mineral deposits from areas or surfaces that are in direct contact with water...

Page 74: ... only Manitowoc approved Ice Machine Cleaner and Sanitizer for this application Manitowoc Cleaner part number 94 0546 3 and Manitowoc Sanitizer part number 94 0565 3 It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling Read and understand all labels printed on bottles before use Caution Do not mix Cleaner and Sanitizer solutions together It is a viol...

Page 75: ...tep 5 Wait until the clean cycle is complete approximately 35 minutes then place the toggle switch in the OFF position and disconnect power to the ice machine and dispenser when used NOTE S307C Only 80 minutes Step 6 Remove parts for cleaning Please refer to the proper parts removal for your ice machine S600C S680C S850C S1000C S1200C page 76 S1470C S1870C S2070C S2170C page 77 S3070C page 80 Caut...

Page 76: ...n the top of the ice thickness probe Pivot the ice thickness probe to disengage one pin then the other The ice thickness probe can be cleaned at this point without complete removal If complete removal is desired disconnect the ice thickness control wiring from the control board C Remove the water trough Depress tabs on right and left side of the water trough Allow front of water trough to drop as ...

Page 77: ...ut B Remove ice thickness probe Compress the hinge pin on the top of the ice thickness probe Pivot the ice thickness probe to disengage one pin then the other The ice thickness probe can be cleaned at this point without complete removal If complete removal is desired disconnect the ice thickness control wiring from the control board ...

Page 78: ...d in the center and pull the left end forward until clear of the side wall Repeat for the right end Pull water trough shield forward to remove D Remove the water trough Depress the two tabs on the top of the water trough Turn left and right ice dampers down to clear water trough Pull forward on the water trough to remove NOTE Proceed to page 82 Step 7 ...

Page 79: ...Part Number 80 1505 3 6 11 79 A B C D ...

Page 80: ...thickness probe to disengage one pin then the other The ice thickness probe can be cleaned at this point without complete removal If complete removal is desired disconnect the ice thickness control wiring from the control board D Remove the water pump assembly Disconnect the vinyl distribution tube from both water pumps Disconnect the water pump and water level probe electrical connections After t...

Page 81: ...Part Number 80 1505 3 6 11 81 A B C D E I ...

Page 82: ...t bristle nylon brush sponge or cloth NOT a wire brush to carefully clean the parts Soak parts for 5 minutes 15 20 minutes for heavily scaled parts Rinse all components with clean water Step 9 While components are soaking use 1 2 of the cleaner water solution to clean all food zone surfaces of the ice machine and bin or dispenser Use a nylon brush or cloth to thoroughly clean the following ice mac...

Page 83: ... parts after sanitizing Step 12 Use 1 2 of the sanitizer water solution to sanitize all food zone surfaces of the ice machine and bin or dispenser Use a spray bottle to liberally apply the solution When sanitizing pay particular attention to the following areas Side walls Base area above water trough Evaporator plastic parts including top bottom and sides Bin or dispenser Do not rinse the sanitize...

Page 84: ...ce Machine Sanitizer to the water trough by pouring between the water curtain splash shields and evaporator Step 17 Move the toggle switch to the ICE position and replace the front panel The ice machine will automatically start ice making after the sanitize cycle is complete approximately 35 minutes S3070C 80 minutes Model Amount of Sanitizer S0600C S0680C S0800C S1000C S1200C 3 ounces 90 ml S1470...

Page 85: ...ust be taken apart for cleaning and sanitizing CLEANING PROCEDURE Caution Use only Manitowoc approved Ice Machine Cleaner and Sanitizer for this application Manitowoc Cleaner part number 94 0546 3 and Manitowoc Sanitizer part number 94 0565 3 It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling Read and understand all labels printed on bottles before...

Page 86: ...he OFF position and allow the ice to melt off the evaporator Step 3 Remove all ice from the bin dispenser Step 4 Place the toggle switch in the CLEAN position The water will flow through the water dump valve and down the drain Wait until the water trough refills and water flows over the evaporator then add the proper amount of ice machine cleaner Caution Never use anything to force ice from the ev...

Page 87: ...the ice machine and dispenser when used NOTE S3070C Only 80 minutes Step 6 Remove parts for cleaning Please refer to the proper parts removal for your ice machine S600C S680C S850C S1000C S1200C page 88 IB620C IB680C IB820C IB1020C page 91 S1470C S1870C S2170C page 95 S3070C page 98 Warning Disconnect the electric power to the ice machine at the electric service switch box ...

Page 88: ... disconnect the ice thickness control wiring from the control board C Remove the water distribution tube NOTE Distribution tube thumbscrews are retained to prevent loss Loosen thumbscrews but do not pull thumbscrews out of distribution tube Loosen the two outer screws do not remove screws completely they are retained to prevent loss and pull forward on the distribution tube to release from slip jo...

Page 89: ...straight down on pump assembly until water pump disengages and electrical connector is visible Disconnect the electrical connector Remove the water pump assembly from ice machine Do not soak the water pump motor in cleaner or sanitizer solution G Remove the evaporator tray or water diverter from the bottom of the evaporator Loosen thumbscrew on left side of tray Allow left side of tray to drop as ...

Page 90: ...90 Part Number 80 1505 3 6 11 A B C D E F G ...

Page 91: ...ot the ice thickness probe to disengage one pin then the other The ice thickness probe can be cleaned at this point without complete removal If complete removal is desired disconnect the ice thickness control wiring from the control board D Remove the water level probe Loosen the screw that holds the water level probe in place The probe can easily be cleaned at this point without complete removal ...

Page 92: ...ion tube Remove the clamp from the vinyl water hose on the right side of the distribution tube Loosen the two thumbscrews which secure the distribution tube Lift the right side of the distribution tube up and then rotate it backward and to the right until the left side of the distribution tube disengages the thumbscrew Pull the vinyl hose off the distribution tube Disassemble for cleaning Twist bo...

Page 93: ...ater pump assembly 1 4 turn counterclockwise Lower the pump assembly into the evaporator compartment Disconnect the water pump power cord Remove water pump assembly from ice machine Do not soak the water pump motor in cleaner or sanitizer solution H Remove the bin thermostat probe Loosen the 2 screws that holds the probe in place The probe can easily be cleaned at this point without complete remov...

Page 94: ...94 Part Number 80 1505 3 6 11 A B C E F D G H ...

Page 95: ...e control board C Remove distribution tubes Distribution tubes thumbscrews are retained to prevent loss Loosen thumbscrews but do not pull thumbscrews out of distribution tube Loosen the two outer screws and pull forward on the distribution tube to release from slip joint Disassemble distribution tube by loosening the two 2 middle thumbscrews and dividing the distribution tube into two pieces D Re...

Page 96: ...istribution tube from the water pump Disconnect the water pump and water level probe electrical connections After the wires are disconnected squeeze the two tabs and lift the water pump assembly out of the ice machine Do not immerse the water pump motor in cleaner or sanitizer solutions G Remove the water trough Depress the two tabs on the top of the water trough Turn left and right ice dampers do...

Page 97: ...Part Number 80 1505 3 6 11 97 A B C D F G E ...

Page 98: ...lash Shields NOTE Each evaporator has a splash shield that must be removed total of four splash shields Grasp the top center of splash shields Lift up and then out D Remove ice thickness probe Compress the hinge pin on the top of the ice thickness probe Pivot the ice thickness probe to disengage one pin then the other The ice thickness probe can be cleaned at this point without complete removal If...

Page 99: ...our ice dampers Grasp ice damper and apply pressure toward the back mounting bracket Apply pressure to the front mounting bracket with thumb Pull ice damper downward when the front ice damper pin disengages G Remove the water pump assembly Disconnect the vinyl distribution tube from both water pumps Disconnect the water pump and water level probe electrical connections After the wires are disconne...

Page 100: ...100 Part Number 80 1505 3 6 11 A B C D E F G H ...

Page 101: ...t bristle nylon brush sponge or cloth NOT a wire brush to carefully clean the parts Soak parts for 5 minutes 15 20 minutes for heavily scaled parts Rinse all components with clean water Step 9 While components are soaking use 1 2 of the cleaner water solution to clean all food zone surfaces of the ice machine and bin or dispenser Use a nylon brush or cloth to thoroughly clean the following ice mac...

Page 102: ...following areas Side walls Base area above water trough Evaporator plastic parts including top bottom and sides Bin or dispenser Do not rinse the sanitized areas Step 13 Replace all removed components Step 14 Reapply power to the ice machine and place the toggle switch in the CLEAN position Step 15 Wait about two minutes or until water starts to flow over the evaporator Add the proper amount of Ma...

Page 103: ...soak the removed parts in the sanitizer water solution Do not rinse parts after sanitizing Step 20 Use 1 2 of the sanitizer water solution to sanitize all food zone surfaces of the ice machine and bin or dispenser Use a cloth or sponge to liberally apply the solution When sanitizing pay particular attention to the following areas Side walls Base area above water trough Evaporator plastic parts inc...

Page 104: ...the toggle switch to ICE and start a Freeze cycle 3 Observe the drain outlet for leakage A If the dump valve is leaking remove disassemble and clean it B If the dump valve is not leaking do not remove it Instead refer to cleaning and sanitizing procedure page 74 Follow the procedure below to remove the dump valve 4 Leaving the wires attached press down and twist the coil 1 8 turn then lift the coi...

Page 105: ...Part Number 80 1505 3 6 11 105 Dump Valve Disassembly MOUNTING BRACKET NYLON WASHER SPRING PLUNGER DIAPHRAM VALVE BODY COIL ...

Page 106: ...ne Watch for water flow If water flows remove disassemble and clean the valve 3 When the ice machine is on the water inlet valve must allow the proper water flow through it Set the toggle switch to ON Watch for water flow into the ice machine If the water flow is slow or only trickles into the ice machine remove disassemble and clean the valve Follow the procedure below to remove the water inlet v...

Page 107: ... sump trough will indicate removal and cleaning are required 1 Remove check valve and tube assembly A Tip assembly to right until tubing disengages B Lift up on assembly to remove 2 Remove insulation from check valve assembly 3 Remove vinyl tubing from top of check valve 4 Soak in cleaner solution 10 minutes and then flush with water to remove debris CHECK VALVE ASSEMBLY CHECK VALVE SV3154 ...

Page 108: ...r Tray 1 Remove the water trough 2 Directly below the evaporator remove the thumbscrew on left side of tray 3 Allow left side of tray to drop as you pull the tray to the left side Continue until the outlet tube disengages from the right side ...

Page 109: ... machine 5 Blow compressed air in the drain openings in the rear of the ice machine until no more water comes out of the drain 6 Place the toggle switch in the ICE position then wait 45 seconds for the water fill solenoid valve to energize Blow compressed air through the incoming water supply in the rear of the ice machine until no more water comes out of the inlet water line 7 Make sure water is ...

Page 110: ...the receiver service valve Hang a tag on the switch as a reminder to open the valve before restarting 2 Perform steps 1 6 on previous page 3 Insert a large screwdriver between the bottom spring coils of the water regulating valve Pry upward to open the valve 4 Hold the valve open and blow compressed air through the condenser until no water remains ...

Page 111: ... energize the harvest valve s and air compressor when used during the water purge and they remain energized during refrigeration start up CVD Condensing Unit When the refrigerant pressure is high enough to close the low pressure control the contactor coil energizes and the compressor starts The compressor and fan cycling control are supplied with power throughout the entire Freeze and Harvest Sequ...

Page 112: ...ssor and fan cycling control are supplied with power throughout the entire Freeze and Harvest Sequences When the refrigerant pressure is high enough to close the fan cycling pressure control the condenser fan motor starts The IB0680C S0680C ice machines do not use a fan cycling control The compressor and the condenser fan motor are wired through the contactor Any time the contactor coil is energiz...

Page 113: ...e more time The freeze cycle continues until the six minute freeze lock expires and enough ice has formed to allow water to contact the ice thickness probe After approximately 10 seconds of continual water contact the harvest sequence is initiated NOTE Freeze lock is bypassed after moving the toggle switch from OFF to ICE position for the first cycle only Energized Control Board Lights Single Evap...

Page 114: ...for the last 15 seconds of the water purge cycle CVD Condensing Unit When the refrigerant pressure is low enough to open the fan cycling pressure control the condenser fan motor stops The IB0680C S0680C ice machines do not use a fan cycle control therefore the condenser fan motor will continue to run in the harvest cycle Energized Control Board Lights Single Evaporators Left Bin green Harvest red ...

Page 115: ...s the water curtain and bin switch The momentary opening and re closing of the bin switch will terminate the harvest sequence and return to the freeze sequence Step 3 4 Twin Quad evaporator models The sliding sheet of cubes opens the ice damper and bin switch The momentary opening and re closing of the bin switch de energizes the harvest valve for the evaporator When all of the bin switches have o...

Page 116: ...inutes into a Harvest sequence The water fill valve will energize to fill the trough with water until reaching the water level probe 5 minutes into a Harvest sequence The water pump will energize and flow water over the evaporators The water fill valve remains on until water reaches the water level probe the water pump remains on until all bin switches have been activated or until the 7 minute Har...

Page 117: ...nt pressure is low enough to open the low pressure control the contactor coil is de energized and the compressor stops The ice machine remains off until enough ice has been removed from the storage bin to allow the ice to fall clear of the water curtain or ice damper As the water curtain or ice damper swings back to the operating position the bin switch re closes and the ice machine restarts steps...

Page 118: ...rt Up Initial or After Auto Shut Off 1 Water Purge On On On Off On Off Off 45 Seconds 2 Refrigeration System Start up Off On Off On Off On On 5 Seconds Freeze Sequence 3 Pre chill Off Off Off On Cycles Off then On Off one more time Off On On Initial Start Up is 60 Seconds 30 Seconds thereafter 4 Freeze On Off Off Off On On Until 10 sec water contact with ice thickness probe Harvest Sequence 5 Wate...

Page 119: ...Off Off Off Off Off Until all bin switches re close 3 min delay expires Single Twin Evaporator Energized Parts Chart Continued Ice Making Sequence of Operation Water Pump Harvest Valve s Air Pumps Water Inlet Valve Water Dump Valve Liquid Line Solenoid Valve Refrigeration Compressor Condenser Fan Motor Length of Time ...

Page 120: ...ser Fan Motor Length of Time Start Up Initial or After Auto Shut Off 1 Water Purge On Off Off Off On Off Off 45 Seconds 2 Refrigeration System Start up Off Off Off On Off On On 5 Seconds Freeze Sequence 3 Pre chill Off Off Off On Cycles Off then On Off one more time Off On On 30 Seconds 4 Freeze On Off Off Off On On Until 10 sec water contact with ice thickness probe Harvest Sequence 5 Water Purge...

Page 121: ...ff Off Off Off Off Off Until all bin switches re close 3 min delay expires Quad Evaporator Energized Parts Chart Continued Ice Making Sequence of Operation Water Pump Harvest Valve s Air Pumps Water Inlet Valve Water Dump Valve Liquid Line Solenoid Valve Refrigeration Compressor Condenser Fan Motor Length of Time ...

Page 122: ...ater 5 minutes into a Harvest sequence The water pump will energize and flow water over the evaporators The water fill valve and water pump remain on until all bin switches have been activated or until the 7 minute Harvest sequence time limit is reached Warm Water Rinse Cycle Single Twin Evaporators Only Closing the back of the evaporator allows ice to build up on the rear of the evaporator and th...

Page 123: ...chine varies for each safety limit Safety Limit 1 all models If the freeze time reaches 60 minutes the control board automatically initiates a harvest cycle If 6 consecutive 60 minute freeze cycles occur the ice machine stops Safety Limit 2 single twin evaporator models If the harvest time reaches 3 5 minutes the control board automatically returns the ice machine to the freeze cycle If three 500 ...

Page 124: ...tinues to run Use the following procedure to determine if the control board contains a safety limit indication 1 Move the toggle switch to OFF 2 Move the toggle switch back to ICE 3 Watch the harvest light It will flash one or two times corresponding to safety limits 1 and 2 to indicate which safety limit stopped the ice machine When a safety limit condition is exceeded 6 consecutive cycles for sa...

Page 125: ... machine prior to major component failures most often a minor problem or something external to the ice machine This may be difficult to diagnose as many external problems occur intermittently Example An ice machine stops intermittently on safety limit 1 long freeze times The problem could be a low ambient temperature at night a water pressure drop the water is turned off one night a week etc Refri...

Page 126: ...e water pump Loss of water from sump area Electrical System Low incoming voltage Ice thickness probe out of adjustment Harvest cycle not initiated electrically Contactor not energizing Compressor electrically non operational Defective fan cycling control Defective fan motor Miscellaneous Non Manitowoc components Improper refrigerant charge Defective head pressure control Defective harvest valve De...

Page 127: ...behind evaporator Plastic extrusions and gaskets not securely mounted to the evaporator Low water pressure 20 psig min Loss of water from sump area Clogged water distribution tube Dirty defective water fill valve Defective water pump Electrical System Ice thickness probe out of adjustment Ice thickness probe dirty Bin switch closed defective Premature harvest Refrigeration System Non Manitowoc com...

Page 128: ...rrupted Water leaking down the drain during freeze dump valve Water tracking into bin Uneven water flow over evaporator Water pump not pumping Electrical System Water level probe prematurely satisfied Water inlet valve failure Water pump failure Refrigeration System Low on Refrigerant Starving TXV ...

Page 129: ...ry default settings C Calibration is cleared for ice thickness water level probe 4 The control board relays close at 1 second intervals and energize the corresponding control board light 5 The relays remain closed and the lights remain energized for 3 5 minutes to allow time to test voltage at components 6 After 3 5 minutes the ice machine automatically exits the test cycle 7 An ice making cycle w...

Page 130: ...y of Shutting Down Refer to Ice Machine Stops Running Flow Chart page 131 Symptom 2 Ice Machine has a Long Freeze Cycle Ice Formation is Thick or Thin Ice Fill on Top or Bottom of Evaporator or Low Production Safety Limit 1 possible Refer to Freeze Cycle Refrigeration System Operational Analysis Table page 138 Symptom 3 Ice Machine Will Not Harvest Freeze Cycle is Normal and Ice Cubes are Not Melt...

Page 131: ...ot Run Ice Machine stops running or has history of shutting down Ice Machine starts when Toggle Switch is moved to ICE Does Ice Machine run in Clean NO NO YES YES YES NO Control board has energized lights Refer to Ice Machine will not run Continued on Next Page ...

Page 132: ...ched YES NO YES Which light flashed Immediately after resetting the toggle switch YES SL1 SL2 Refer to Safety Limit 1 Long Freeze Cycle Refer to Safety Limit 2 Long Harvest Cycle Refer to Bin Switch Diagnostics Replace The Water Curtain Install Water Curtain Run and Check for Normal Operation ...

Page 133: ...of ice 4 Verify ICE OFF CLEAN toggle switch functions properly A defective toggle switch may keep the ice machine in the OFF mode 5 Verify low DC voltage is properly grounded Loose DC wire connections may intermittently stop the ice machine 6 Replace the control board Be sure steps 1 6 were followed thoroughly Intermittent problems are not usually related to the control board Warning High line vol...

Page 134: ...supplied to ice machine condensing unit and the fuse circuit breaker is closed 2 Verify the high pressure cutout and low pressure cutouts are closed The HPCO and LPCO are closed if primary line voltage is present at the contactor coil terminals 3 Verify line voltage is present at the contactor coil 4 Verify the contactor contacts are closed and line voltage is present across all lines 5 Refer to c...

Page 135: ... from the compressor terminals 2 The resistance values between C and S and between C and R when added together should equal the resistance value between S and R 3 If the overload is open there will be a resistance reading between S and R and open readings between C and S and between C and R Allow the compressor to cool then check the readings again Three Phase Compressors 1 Disconnect power and re...

Page 136: ...ctive starting component and a mechanically seized compressor To determine which you have Install high and low side gauges Try to start the compressor Watch the pressures closely If the pressures do not move the compressor is seized Replace the compressor If the pressures move the compressor is turning slowly and is not seized Check the capacitors and relay Compressor Drawing High Amps The continu...

Page 137: ...replacing the compressor Visual evidence of capacitor failure can include a bulged terminal end or a ruptured membrane Do not assume a capacitor is good if no visual evidence is present A good test is to install a known good substitute capacitor Use a capacitor tester when checking a suspect capacitor Clip the bleed resistor off the capacitor terminals before testing ...

Page 138: ...ists and other references to eliminate refrigeration components not listed on the tables and external items and problems which can cause good refrigeration components to appear defective The tables list five different defects that may affect the ice machine s operation NOTE A low on charge ice machine and a starving expansion valve have very similar characteristics and are listed under the same co...

Page 139: ... found it is not necessary to complete the remaining procedures Step 2 Enter check marks Each time the actual findings of an item in the Operational Analysis column matches the published findings on the table enter a check mark Example Freeze cycle suction pressure is determined to be low Enter a check mark in the low column Step 3 Add the check marks listed under each of the four columns Note the...

Page 140: ...ithin 10 of charted capacity Installation and Water System All installation and water related problems must be corrected before proceeding with chart Ice Formation Pattern Ice formation is extremely thin on outlet of evaporator or No ice formation on the entire evaporator Ice formation normal or Ice formation is extremely thin on outlet of evaporator or No ice formation on entire evaporator Ice fo...

Page 141: ...Suction Pressure _______ ______ _____ 1 minute Middle End If suction pressure is High or Low refer to freeze cycle high or low suction pressure problem checklist page 160 page 161 to eliminate problems and or components not listed on this table before proceeding Suction pressure is High Suction pressure is Low or Normal Suction pressure is Normal or High Suction pressure is High Harvest Valve Audi...

Page 142: ...ction shut off valve is greater than 10 F 12 2 C at the end of the freeze cycle Suction line temp at the suction shut off valve is less than 10 F 12 2 C at the end of the freeze cycle Suction line temp at the suction shut off valve is greater than 10 F 12 2 C at the end of the freeze cycle Final Analysis Enter total number of boxes checked in each column Harvest Valve Leaking Low On Charge Or TXV ...

Page 143: ...tallation and water related problems must be corrected before proceeding with chart Ice Formation Pattern Left _______________ Right ______________ Ice formation is extremely thin on outlet of one evaporator or No ice formation on top of one evaporator Ice formation is normal or Ice formation is extremely thin on outlet of one or both evaporators or No ice formation on one or both evaporators Ice ...

Page 144: ...ressure problem checklist page 157 page 158 to eliminate problems and or components not listed on this table before proceeding Freeze Cycle Suction Pressure ________ ________ ________ 1 minute Middle End If suction pressure is High or Low refer to Freeze cycle high or low suction pressure problem checklist page 160 page 161 to eliminate problems and or components not listed on this table before pr...

Page 145: ...uction line temperature at the suction shut off valve is greater than 10 F 12 2 C at the end of the Freeze cycle Suction line temperature at the suction shut off valve is greater than 10 F 12 2 C at the end of the Freeze cycle Suction line temperature at the suction shut off valve is less than 10 F 12 2 C at the end of the Freeze cycle Suction line temperature at the suction shut off valve is grea...

Page 146: ...duction is within 10 of charted capacity Installation and Water System All installation and water related problems must be corrected before proceeding with chart Ice Formation Pattern Evaporators are numbered left to right viewed from the front of the ice machine Evaporator 1______________ Evaporator 2______________ Evaporator 3______________ Evaporator 4______________ Ice formation is normal Ice ...

Page 147: ...ressure problem checklist page 157 page 158 to eliminate problems and or components not listed on this table before proceeding Freeze Cycle Suction Pressure ________ ________ ________ 1 minute Middle End If suction pressure is High or Low refer to freeze cycle high or low suction pressure problem checklist page 160 page 161 to eliminate problems and or components not listed on this table before pr...

Page 148: ...ve A leaking harvest valve gives an audible indication before ice fill pattern or machine performance is affected Audible flow of refrigerant through any harvest valve during the freeze cycle No Audible flow of refrigerant through any harvest valve during the freeze cycle No Audible flow of refrigerant through any harvest valve during the freeze cycle No Audible flow of refrigerant through any har...

Page 149: ...le it is being serviced but malfunctions later Information provided by the user can help the technician start in the right direction and may be a determining factor in the final diagnosis Ask these questions before beginning service When does the ice machine malfunction night day all the time only during the Freeze cycle etc When do you notice low ice production one day a week every day on weekend...

Page 150: ...verts to 1 25 min 15 seconds 60 seconds 25 minutes Weights are in pounds Example 2 lb 6 oz converts to 2 375 lb 6 oz 16 oz 375 lb 3 Perform an ice production check using the formula below Weighing the ice is the only 100 accurate check However if the ice pattern is normal and the 1 8 in thickness is maintained the ice slab weights listed with the 24 Hour Ice Production Charts may be used 4 Compare...

Page 151: ...e machine is not level Level the ice machine Condenser is dirty Clean the condenser Water filtration is plugged if used Install a new water filter Water drains are not run separately and or are not vented Run and vent drains according to the Installation Manual Line set is improperly installed Reinstall according to the Installation Manual ...

Page 152: ...t check the hot water line check valves in other store equipment Water filtration is plugged if used Install a new water filter Water dump valve leaking during the Freeze cycle Clean replace dump valve as needed Vent tube is not installed on water outlet drain See Installation Instructions Hoses fittings etc are leaking water Repair replace as needed Water fill valve or float is stuck open or clos...

Page 153: ... formation Evaporator Tubing Routing Routing of the tubing on the back of the evaporator determines the ice fill pattern failure mode The evaporator outlet tubing does not exit directly at the top of the evaporator but exits several inches below the top of the evaporator Extremely Thin at the Evaporator Outlet will first be visible several inches below the top of the evaporator Extremely Thin at E...

Page 154: ...me as the other models and will first be visible several inches above the bottom of the evaporator Ice Formation Patterns 1 Normal Ice Formation Ice forms across the entire evaporator surface At the beginning of the Freeze cycle it may appear that more ice is forming at the evaporator inlet than on the evaporator outlet At the end of the Freeze cycle ice formation at the outlet will be close to or...

Page 155: ...the outlet half of the evaporator but ice forms on the inlet half of the evaporator Or the ice at the outlet of the evaporator reaches 1 8 in to initiate a harvest but the inlet of the evaporator already has 1 2 in to 1 in of ice formation 3 Extremely Thin at Evaporator Inlet There is no ice or a considerable lack of ice formation on the evaporator inlet Examples The ice at the outlet of the evapo...

Page 156: ...harge pressures Freeze Cycle______ Harvest Cycle______ 3 Perform an actual discharge pressure check 4 Compare the actual discharge pressure step 3 with the published discharge pressure step 2 The discharge pressure is normal when the actual pressure falls within the published pressure range for the ice machine s operating conditions It is normal for the discharge pressure to be higher at the begin...

Page 157: ...y condenser fins Defective fan cycling control Defective fan motor Improper Refrigerant Charge Overcharged Non condensable in system Wrong type of refrigerant Other Non Manitowoc components in system High side refrigerant lines component restricted before mid condenser Defective head pressure control valve Water Inlet Valve is incorrectly adjusted CVD1486 only NOTE Do not limit your diagnosis to o...

Page 158: ...er Refrigerant Charge Undercharged Wrong type of refrigerant Other Non Manitowoc components in system High side refrigerant lines component restricted before mid condenser Defective head pressure control valve Defective fan cycle control Water regulating valve incorrectly set CVD1486 only NOTE Do not limit your diagnosis to only the items listed in the checklists ...

Page 159: ...e published Freeze cycle time NOTE Analyze discharge pressure before analyzing suction pressure High or low discharge pressure may be causing high or low suction pressure Procedure Step 1 Determine the ice machine operating conditions Temperature of air entering the condenser Look up and determine the published suction pressure 2 Perform an actual suction pressure check at the beginning middle and...

Page 160: ... high and is affecting suction pressure refer to Freeze Cycle Discharge Pressure High Checklist page 157 Improper Refrigerant Charge Overcharged Wrong type of refrigerant Non condensable in system Other Non Manitowoc components in system Harvest valve leaking TXV flooding check bulb mounting Defective compressor NOTE Do not limit your diagnosis to only the items listed in the checklists ...

Page 161: ...re Low Checklist page 156 Improper Refrigerant Charge Undercharged Wrong type of refrigerant Other Non Manitowoc components in system Improper water supply over evaporator refer to Water System Checklist page 152 Loss of heat transfer from tubing on back side of evaporator Restricted plugged liquid line drier Restricted plugged tubing in suction side of refrigeration system TXV starving NOTE Do no...

Page 162: ...ed preventing refrigerant flow from the receiver into the evaporator 2 Allows refrigerant vapor to enter the evaporator in the Harvest cycle During the Harvest cycle the harvest valve is energized open allowing refrigerant gas from the top of the receiver to flow into the evaporator The refrigerant changes state from a vapor to a liquid and gives up latent heat This heat is absorbed by the evapora...

Page 163: ...ymptoms of a harvest valve remaining partially open during the Freeze cycle can be similar to symptoms of an expansion valve float valve or compressor problem Symptoms are dependent on the amount of leakage in the Freeze cycle A small amount of leakage will cause increased freeze times and an ice fill pattern that is normal As the amount of leakage increases the length of the Freeze cycle increase...

Page 164: ...e cycle 1 Use a quality temperature meter capable of taking temperature readings on curved copper lines 2 Attach the temperature meter thermocouple to the copper suction line within 6 of the shut off valves 3 Monitor the suction line temperature during the last three minutes of the freeze cycle and record the low event 4 Use this with other information gathered on the Refrigeration Component Analy...

Page 165: ...leak cannot be found proper refrigerant procedures must still be followed Change the liquid line drier Then evacuate and weigh in the proper charge COLUMN 3 REFRIGERANT OVERCHARGE OR TXV FLOODING A loose or improperly mounted expansion valve bulb causes the expansion valve to flood Check bulb mounting insulation etc before changing the valve Verify refrigerant amount is correct by weighing recover...

Page 166: ...e toggle switch in the OFF position then remove and inspect the sheet of ice If the cubes are well defined and show no signs of melting a refrigeration problem is indicated If the cubes are deformed and melted away sharks teeth a mechanical problem is indicated Something on the evaporator is causing the harvest problem Always clean the evaporator before diagnosing the refrigeration system The wate...

Page 167: ...shapen and melted This indicates something is on the evaporator preventing the ice slab from releasing A manual cleaning procedure must always be performed when this problem is encountered Normal sheet of cubes at the end of the harvest cycle Ice is difficult to remove from the evaporator by hand Once removed the back of the cubes are square and show no signs of melting This indicates a refrigerat...

Page 168: ...achine Will Not Harvest Freeze Cycle Is Normal and Ice Cubes Are Not Melted After Harvest Is the Harvest Valve s Energized Refer to Sequence of Operation Wiring Diagram Note All pressure readingas are taken from the Liquid Suction Shut off Valves at the ice machine head section Are the Harvest Pressures normal Is the ice machine installed correctly Correct the Installation YES YES YES NO NO NO ...

Page 169: ...l Feels Warm to Hot Cold Feel temperature of Receiver after 30 seconds into harvest cycle Is Head Pressure low Suction Pressure low in harvest Replace Harvest Valve Is Head Pressure high Suction Pressure low in harvest Not a refrigeration problem Clean Inspect Evaporator ...

Page 170: ...ng Unit Does the Condenser Fan Motor run below cut out setpoint in harvest Backseat Liquid Line Shut Off Valve or Replace Look for Restriction Correct Line Set Size Proper Insulation Refer to Fan Cycling Control Diagnostics Note Some CVD675 Condensing Units may not have a Fan Cycle Control Cold Cold Cold Feels Hot Feels Hot YES NO ...

Page 171: ...ster Diagnostics Headmaster is not in 100 Bypass Headmaster is in 100 Bypass Refrigerant Charge is Incorrect Evacuate System Recharge perform Production Check Refer to Symptom 2 Refrigeration Operational Analysis Table Refrigerant Charge is Correct IMPORTANT Weigh charge as you are recovering if incorrect evacuate recharge if correct then proceed ...

Page 172: ...Melted After Harvest Is Ice Machine level NO NO YES YES YES NO Is water flow over the evaporator at the end of harvest cycle YES NO Refer to Refrigeration Analysis Chart Ice remains frozen to the evaporator at the end of the harvest cycle Level Ice Machine Refer to Dump Valve Diagnostics Back of cubes are melted at end of harvest cycle Continued on Next Page ...

Page 173: ...Part Number 80 1505 3 6 11 173 Refer to Symptom 2 Freeze Cycle Operational Analysis Table Refer to Cleaning Procedures YES NO NO Is the evaporator dirty Dry evaporator first then check ...

Page 174: ...174 Part Number 80 1505 3 6 11 This Page Intentionally Left Blank ...

Page 175: ...h light is on with the water curtain closed the fuse is good 2 Remove the fuse Check the resistance across the fuse with an ohmmeter Warning High line voltage is applied to the control board terminals 55 and 56 at all times Removing the control board fuse or moving the toggle switch to OFF will not remove the power supplied to the control board Warning Disconnect electrical power to the entire ice...

Page 176: ...e machine remains off until enough ice is removed from the storage bin to allow the sheet of cubes to drop clear of the water curtain ice dampers As the water curtain ice dampers swing back to the operating position the bin switch closes and the ice machine restarts provide the 3 minute delay has expired SPECIFICATIONS The bin switch is a magnetically operated reed switch The magnet is attached to...

Page 177: ...s are affected by your test lead connection and VOM battery strength Verify you have solid connections and a correctly functioning VOM before testing bin switch Open the curtain ice dampers for 3 seconds then close the curtain ice dampers for 3 seconds This will allow your VOM display to settle With the bin switch closed your meter reading should be 0 0 to 10 is acceptable With the curtain ice dam...

Page 178: ...lectrical control sequence If the ice machine goes into Harvest sequence while the water curtain is removed one of the following will happen Water curtain remains off When the Harvest cycle time reaches 3 5 minutes and the bin switch is not closed the ice machine stops as though the bin were full Water curtain is put back on If the bin switch closes prior to reaching the 3 5 minute point the ice m...

Page 179: ...n the sequence of operation 2 If the compressor is not running when it should be check voltage at the control board 3 If there is no voltage present at the control board replace the control board 4 If there is voltage present at the control board check for voltage at the air pump connector 5 If there is no voltage present at the air pump connector replace wire 6 If there is voltage at the air pump...

Page 180: ...at a voltmeter be used to check toggle switch operation 1 Inspect the toggle switch for correct wiring 2 Isolate the toggle switch by disconnecting the Molex connector 3 Check across the toggle switch terminals Note where the wire numbers are connected to the switch terminals or refer to the wiring diagram to take proper readings 4 Replace the toggle switch if ohm readings do not match all three s...

Page 181: ... Inspect the toggle switch for correct wiring 2 Isolate the toggle switch by disconnecting all wires from the switch or by disconnecting the Molex connector and removing wire 69 from the toggle switch 3 Check across the toggle switch terminals using a calibrated ohmmeter Note where the wire numbers are connected to the switch terminals or refer to the wiring diagram to take proper readings 4 Repla...

Page 182: ...will flicker as water splashes on the probe FREEZE TIME LOCK IN FEATURE The ice machine control system incorporates a freeze time lock in feature This prevents the ice machine from short cycling in and out of harvest The control board locks the ice machine in the freeze cycle for six minutes If water contacts the ice thickness probe during these six minutes the harvest light will come on to indica...

Page 183: ... water trough 1 Inspect the bridge connecting the cubes It should be about 1 8 in 32 cm thick 2 If adjustment is necessary turn the ice thickness probe adjustment screw clockwise to increase bridge thickness or counterclockwise to decrease bridge thickness Set a 1 4 gap between the ice thickness probe and evaporator as a starting point Then adjust to achieve 1 8 ice thickness NOTE The starting poi...

Page 184: ... disassembling and cleaning water circuit components soak ice thickness probe for 10 minutes or longer 3 Clean all ice thickness probe surfaces including all plastic parts do not use abrasives Verify the ice thickness probe cavity is clean Thoroughly rinse ice thickness probe including cavity with clean water then dry completely Incomplete rinsing and drying of the ice thickness probe can cause pr...

Page 185: ...om the control board to any cabinet ground and monitor the ice probe light Ice Probe Light On The ice probe light comes on and 10 seconds later the ice machine cycles from Freeze to Harvest The ice thickness probe is causing the malfunction The ice probe light comes on but the ice machine stays in the Freeze sequence The control board is causing the malfunction Ice Probe Light Off The ice probe li...

Page 186: ...rol board Step 3 Wait until water starts to flow over the evaporator then monitor the ice probe light Ice Probe Light Off The ice probe light stays off and the ice machine remains in the Freeze sequence The ice thickness probe is causing the malfunction Verify that the ice thickness probe is adjusted correctly and clean Ice Probe Light On The ice probe light comes on and 10 seconds later the ice m...

Page 187: ...ter level probe is set to maintain the proper water level above the water pump housing The water level is not adjustable If the water level is incorrect check the water level probe position Reposition or replace the probe as necessary WATER INLET VALVE SAFETY SHUT OFF In the event of a water level probe failure this feature limits the water inlet valve to a 6 minute on time Regardless of the water...

Page 188: ...mes as needed to fill the water trough After 45 seconds into the Freeze cycle The water inlet valve will cycle ON and then OFF one more time to refill the water trough The water inlet valve is now OFF for the duration of the Freeze sequence HARVEST CYCLE CIRCUITRY The water level probe does not control the water inlet valve during the harvest cycle During the harvest cycle water purge the water in...

Page 189: ...d then connect a jumper from the control board terminal and any cabinet ground then refer to chart on next page Important This restart must be done prior to performing diagnostic procedures This assures the ice machine is not in a Freeze cycle water inlet valve safety shut off mode You must complete the entire diagnostic procedure within 6 minutes of starting Important For the test to work properl...

Page 190: ...ater Flowing into the Water Trough The Water Level Light Is The Water Inlet Valve Solenoid Coil Is Cause No On De energized The water level probe is causing the problem Ohm then clean or replace the water level probe Yes Off Energized The control board is causing the problem Yes On De energized The water fill valve is causing the problem ...

Page 191: ...CLEAN toggle switch to OFF then back to ICE Step 2 Wait until the freeze cycle starts approximately 45 seconds the freeze cycle starts when the compressor energizes Important This restart must be done prior to performing diagnostic procedures This assures the ice machine is not in a freeze cycle water inlet valve safety shut off mode You must complete the entire diagnostics within 6 minutes of sta...

Page 192: ...e water level probe restart the ice machine step 1 and then disconnect the water level probe after the compressor starts Step 3 Disconnect Probe from Control Board Is Water Flowing into the Water Trough The Water Level Light Is The Water Inlet Valve Solenoid Coil Is Cause Yes Off Energized The water level probe is causing the problem Clean or replace the water level probe No Off Energized The wate...

Page 193: ... Setpoint Range 30 to 212 F 34 100 C CONTROL SETTINGS Verify control is set properly before proceeding POSITIONING THE TOUCH PAD JUMPERS P5 Jumper The P5 jumper position determines if the touch pad is locked or unlocked The control is factory locked to unlock move the jumper from one pin to two pins Display Function Preset Settings SP Set Point 40 DIF Differential 1 ASD Anti Short Cycle Delay 1 OF...

Page 194: ...eating or cooling mode Jump 2 is used to establish Setpoint at either cut in or cutout 115V 240V COM NC NO C P5 P5 RED LEAD SENSOR PROBE BLACK LEAD SENSOR PROBE MATCH WIRING TO ICE MACHINE VOLTAGE BIN SWITCH WIRE WHITE BIN SWITCH WIRE RED KEYPAD JUMPER LOCATION P4 Jump 1 Jump 2 Cooling Mode Cut Out at Setpoint Jumpers on Left Pins Only ...

Page 195: ...ature Offset or Sensor Failure Operation use the following method Factory Preset Temperature Control Code Settings as follows 1 Press and hold MENU until the display changes to flashing SP 2 Press up and down arrows repeatedly until the desired function is displayed 3 Press MENU to display the function s current value 4 Press up and down arrows until the desired value is displayed 5 Press MENU to ...

Page 196: ...olts for 208 230V applications D If the voltage reading is not within the required range check the power source and input power wires for problems 2 Fault Codes If the LCD displays an alarm or fault code SF or EE 3 Check for proper operation Warning Line voltage is present inside control Contact with line voltage can cause serious injury or death Fault Code Definition Solution SF flashing alternat...

Page 197: ...ontrol C Replace the cover D Check the control settings for proper values E Press and hold MENU until SP appears F Press up and down arrows to change the setpoint temperature above and below the sensor temperature until the relay energizes and de energizes G If the output relay does not perform as indicated replace the control H If proper operation of the control is verified reconnect the load ...

Page 198: ...198 Part Number 80 1505 3 6 11 This Page Intentionally Left Blank ...

Page 199: ... from the compressor terminals 2 The resistance values between C and S and between C and R when added together should equal the resistance value between S and R 3 If the overload is open there will be a resistance reading between S and R and open readings between C and S and between C and R Allow the compressor to cool then check the readings again THREE PHASE COMPRESSORS 1 Disconnect power and re...

Page 200: ...raw while the compressor is trying to start The two likely causes of this are a defective starting component and a mechanically seized compressor To determine which you have 1 Install high and low side gauges 2 Try to start the compressor 3 Watch the pressures closely A If the pressures do not move the compressor is seized Replace the compressor B If the pressures move the compressor is turning sl...

Page 201: ...s before testing Relay The relay has a set of contacts that connect and disconnect the start capacitor from the compressor start winding The contacts on the relay are normally closed start capacitor in series with the start winding The relay senses the voltage generated by the start winding and opens the contacts as the compressor motor starts The contacts remain open until the compressor is de en...

Page 202: ...must be cooled before attempting to start the compressor otherwise the PTCR will heat up too quickly and stop current flow through the start winding before the compressor motor reaches full speed NOTE If a PTCR is dropped internal damage can occur to the ceramic PTCR discs The ceramic disc can chip and cause arcing which leads to PTCR failure Since there is no way to open the PTCR in order to dete...

Page 203: ...rature may reach 210 F 100 C while the compressor is running This is normal Do not change a PTCR just because it is hot 2 Wait at least 10 minutes for the PTCR to cool to room temperature 3 Remove the PTCR from the ice machine 4 Measure the resistance of the PTCR as shown At room temperature the resistance reading must be between 8 22 ohms ...

Page 204: ...er When the refrigerant charge and ambient temperature create an undercharge of refrigerant in the freeze cycle the receiver dip tube will lose it s liquid seal Without liquid refrigerant to the TXV the ice machine fails to make a full sheet of ice in 60 minutes and a safety limit 1 results When the refrigerant charge and ambient temperature create a marginal undercharge of refrigerant the ice mac...

Page 205: ... cycle Overcharge Symptoms Safety limit 2 in control board memory Harvest cycle suction pressure is low Harvest cycle discharge pressure is normal Freeze cycle time suction and discharge pressure are normal and the ice machine will not harvest The sheet of ice cubes show little or no sign of melting when removed from the evaporator after the harvest cycle has been completed If the cubes are melted...

Page 206: ...he suction accumulator empties within the first 5 minutes of the freeze cycle When the refrigeration affect ends liquid refrigerant has been removed the suction line between the accumulator and compressor will increase in temperature The suction line temperature increases 20 plus degrees within 2 minutes after the liquid has been removed The time needed to remove the liquid refrigerant will vary w...

Page 207: ... on CVD condensing units Hunting varies by model and ambient but generally settles out within the first 6 minutes of the freeze cycle At ambient temperatures of approximately 70 F 21 C or above refrigerant flows through the valve from the condenser to the receiver inlet At temperatures below this or at higher temperatures if it is raining the head pressure control starts to modulate closes the con...

Page 208: ...arvest cycle Without this additional heat the head pressure would continue to drop as liquid refrigerant boils off in the receiver Example A service technician removes refrigerant vapor from a cylinder by boiling off the liquid refrigerant A refrigeration effect is created as the refrigerant changes state from a liquid to a vapor The cylinder cools and the refrigerant pressure drops To maximize fl...

Page 209: ...warm body temperature 4 Using the information gathered refer to the list for diagnosis NOTE A headmaster that will not bypass will function properly with condenser air temperatures of approximately 70 F 21 1 C or above When the temperature drops below 70 F 21 1 C the headmaster fails to bypass and the ice machine malfunctions Rinsing the condenser with cool water during the Freeze cycle will simul...

Page 210: ...fails at temperatures below 32 F Harvest cycle suction pressure is low Harvest cycle discharge pressure is normal or slightly low Procedure 1 Freeze cycle operation must be normal before diagnosing the headmaster in the harvest cycle Refer to Cycle Times 24 hr Ice Production Refrigerant Pressure Chart 2 Allow the ice machine to run a normal freeze cycle do not initiate an early harvest cycle 3 At ...

Page 211: ...ver feel the same 30 seconds into the harvest cycle The headmaster is functioning correctly The compressor discharge line is noticeably warmer than the liquid line to the ice machine receiver Headmaster valve is not bypassing 100 Replace headmaster valve Refrigerant Flow No F lo w Step 3 Details Grasp Here with Hands to Compare Temperatures LIQUID LINE FROM CONDENSER ...

Page 212: ...ster control valve diverts the compressor discharge gas to the ice machine receiver in the harvest cycle All refrigerant flow through the condenser in the harvest cycle stops Symptoms of a headmaster valve that will not seat 100 closed in the harvest cycle completely bypass the condenser are Freeze cycle suction and discharge pressure are normal The control board indicates safety limit 2 Harvest c...

Page 213: ... Discharge Pressure Low Water regulating valve maintains freeze cycle discharge pressure Adjust or replace water regulating valve Discharge Pressure High Liquid Line Temperature Hot Verify water regulating valve is set and or operating correctly Headmaster valve is stuck in bypass if water regulating valve is OK Replace headmaster valve Discharge Pressure normal or high Liquid Line Temperature War...

Page 214: ...ge 212 before replacing valve 4 Determine the temperature of the liquid line entering the receiver by feeling it This line is normally warm body temperature 5 Using the information gathered refer to the list for diagnosis Problem Freeze Cycle Valve not maintaining discharge pressure Valve incorrectly set dirty or defective Adjust valve to 240 psig clean or replace valve Discharge pressure extremel...

Page 215: ...harge pressure CHECK PROCEDURE 1 Verify fan motor windings are not open or grounded and fan spins freely 2 Connect manifold gauges to ice machine 3 Hook voltmeter in parallel across the fan cycle control leaving wires attached 4 Refer to chart below Specifications Cut In Close Cut Out Open First Condenser Fan 250 psig 5 200 psig 5 Second Condenser Fan 275 psig 5 225 psig 5 FCC Setpoint Reading Sho...

Page 216: ...ched 5 Reconnect condensing unit 6 Set ICE OFF CLEAN switch to ICE block condensing unit with cardboard or similar object 7 No air flowing through the condenser will cause the HPCO control to open because of excessive pressure Watch the pressure gauge and record the cut out pressure Replace the HPCO control if it 1 Will not reset below 300 psig 2 Does not open at the specified cut out point Specif...

Page 217: ... will de energize and the suction pressure will begin to decrease The low pressure control will open at the listed specification 4 Use the manifold gauge set to increase suction pressure Feed refrigerant from the high side access valve to the low side access valve Add refrigerant in small increments to allow the low side pressure to be monitored The low pressure control will close at the listed sp...

Page 218: ...er to prevent voiding the warranty Warning Recovery evacuation of a QuietQube remote system requires connections at either three or five points for complete system recovery evacuation Check valves are located in the ice machine head section on all models and in the CVD condensing unit on models manufactured in 2010 and beyond Three point connections are receiver service valve suction line and liqu...

Page 219: ...on access valve 2 Discharge side of the compressor through the liquid line shut off valve or high side access valve 3 Receiver access valve both receiver service valves on S3070C fastest recovery time which evacuates the area between the check valve in the liquid line and the liquid line solenoid valve CVD Condensing Unit Started In 2010 4 Compressor discharge access valve 5 Suction filter access ...

Page 220: ... be accessed during refrigerant recovery to allow complete removal of the refrigerant charge CONNECTIONS MUST BE MADE AT THREE POINTS FOR COMPLETE REFRIGERANT RECOVERY ON ALL QUIETQUBE MODELS Refrigerant Recovery Connections Ice Machine Head CONNECTIONS MUST BE MADE AT TWO ADDITIONAL POINTS FOR COMPLETE REFRIGERANT RECOVERY ON ALL 2010 AND LATER CONDENSING UNITS ...

Page 221: ...scale and recovery unit or two stage vacuum pump 3 Open the receiver service valve halfway 4 Open high and low side on the manifold gauge set 5 Perform recovery or evacuation A Recovery Operate the recovery unit as directed by the manufacturer s instructions B Pressure test the system C Evacuation prior to recharging Evacuate to 500 microns Then allow the pump to run for an additional hour 6 Refer...

Page 222: ... the remaining charge through valves on back of ice making head or through valves on suction filter 5 Run the ice machine in the Freeze cycle 6 Close the receiver service valve in the ice machine head section 7 Disconnect the manifold gauge set from the liquid line shut off valve 8 Open the high and low side valves on the manifold gauge set Any refrigerant in the lines will be pulled into the low ...

Page 223: ...efrigerant eliminating the need to take an oil sample Follow the manufacturer s directions If a refrigerant test kit indicates harmful levels of contamination or if a test kit is not available inspect the compressor oil 1 Remove the refrigerant charge from the ice machine 2 Remove the compressor from the system 3 Check the odor and appearance of the oil 4 Inspect open suction and discharge lines a...

Page 224: ... acid oil test shows contamination No burnout deposits in open compressor lines Mild contamination cleanup procedure Mild Compressor Burnout symptoms Oil appears clean but smells acrid Refrigeration test kit or acid oil test shows harmful acid content No burnout deposits in open compressor lines Severe contamination cleanup procedure Severe Compressor Burnout symptoms Oil is discolored acidic and ...

Page 225: ...ollowing A Pull vacuum to 1000 microns Break the vacuum with dry nitrogen and sweep the system Pressurize to a minimum of 5 psig B Pull vacuum to 500 microns Break the vacuum with dry nitrogen and sweep the system Pressurize to a minimum of 5 psig C Change the vacuum pump oil D Pull vacuum to 250 microns Run the vacuum pump for 1 2 hour on self contained models 1 hour on remotes NOTE You may perfo...

Page 226: ...7 Replace existing suction line filter 8 Install a suction line filter drier 9 Install a new liquid line drier 10 Follow the normal evacuation procedure except replace the evacuation step with the following A Pull vacuum to 1000 microns Break the vacuum with dry nitrogen and sweep the system Pressurize to a minimum of 5 psig B Change the vacuum pump oil C Pull vacuum to 500 microns Break the vacuu...

Page 227: ...he pressure drop is less than 2 psig the filter drier should be adequate for complete cleanup B If the pressure drop exceeds 2 psig change the suction line filter drier and the liquid line drier Repeat until the pressure drop is acceptable 13 Operate the ice machine for 48 72 hours Then remove the suction line drier replace with suction filter and change the liquid line drier 14 Follow normal evac...

Page 228: ...the pressure control as feasible See the figure on next page Clamp down on the tubing until the pinch off is complete 3 Cut the tubing of the defective component with a small tubing cutter 4 Solder the replacement component in place Allow the solder joint to cool 5 Remove the pinch off tool 6 Re round the tubing Position the flattened tubing in the proper hole in the pinch off tool Tighten the win...

Page 229: ...Part Number 80 1505 3 6 11 229 SV1406 USING PINCH OFF TOOL ...

Page 230: ...rant Must be of original nameplate type Must meet ARI Standard 700 latest edition specifications 3 Recovered or Recycled Refrigerant Must be recovered or recycled in accordance with current local state and federal laws Must be recovered from and reused in the same Manitowoc product Reuse of recovered or recycled refrigerant from other products is not approved Recycling equipment must be certified ...

Page 231: ...evacuated and recharged properly following failure s Whether the system has been contaminated by this failure Compressor motor burnouts and improper past service prevent refrigerant reuse Refer to System Contamination Cleanup page 223 to test for contamination 4 Substitute or Alternative Refrigerant Must use only Manitowoc approved alternative refrigerants Must follow Manitowoc published conversio...

Page 232: ...232 Part Number 80 1505 3 6 11 ...

Page 233: ... of a wide variation in D C voltage it is not recommended that a voltmeter be used to check bin switch operation HARVEST ASSIST AIR PUMP 115 Volt or 230 Volt matches the ice machine voltage ICE OFF CLEAN TOGGLE SWITCH S Model Ice Machines Single pole double throw switch The switch is connected into a varying low D C voltage circuit IB Model Ice Machines Double pole double throw switch The switch i...

Page 234: ...e Cut Out Open First Condenser Fan 250 psig 5 200 psig 5 Second Condenser Fan 275 psig 5 225 psig 5 Specifications Cut Out Cut In 450 psig 10 3103 kPa 69 31 bar 69 Automatic Reset Must be below 300 psig 2068 kPa 20 68 bar to reset Specifications Cut Out Cut In Original 7 psig 3 22 psig 3 Current Production Replacement Part 12 psig 3 35 psig 3 ...

Page 235: ...machines have a back flushing action that takes place during every Harvest cycle A Manitowoc filter drier has a very high moisture removal capability and a good acid removal capacity Listed below is the recommended OEM field replacement drier Liquid Line Driers Model Drier Size End Connection Size IB0600C IB0680C IB0800C IB1000C DML 052S 1 4 in S0600C S0850C S1000C S1200C S1470C S1870C S2070C S217...

Page 236: ...e has escaped and the refrigeration system has been exposed to the atmosphere 3 A compressor is replaced 4 Refrigeration system contains contaminants Listed below is the recommended OEM field replacement filter Suction Line Filter Model Drier Size End Connection Size Part Number CVD0675 CVD0685 CVD0885 ASF35S5 5 8 in 82 5053 9 CVD1075 CVD1085 CVD1185 CVD1285 CVD1485 CVD1486 ASF45S6 3 4 in 82 5054 ...

Page 237: ...15 M 12 lbs 5 44 kg 51 100 ft 15 30 M IB0800C CVD885 12 lbs 192 oz 0 100 ft 0 30 M S1000C CVD1085 11 lbs 5 kg 0 50 ft 0 15 M 12 lbs 5 44 kg 51 100 ft 15 30 M IB1000C CVD1185 CVD1285 CVD1085 CVD1075 12 lbs 192 oz 0 100 ft 0 30 M S1200C CVD1285 11 lbs 5 kg 0 50 ft 0 15 M 12 lbs 5 44 kg 51 100 ft 15 30 M S1470C CVD1485 12 75 lbs 5 44 kg 0 100 ft 0 30 M CVD1486 12 75 lbs 5 44 kg 0 100 ft 0 30 M S1870C...

Page 238: ...238 Part Number 80 1505 3 6 11 This Page Intentionally Left Blank ...

Page 239: ...machine head section Connect Manifold gauge set at the suction and liquid line shut off valves to obtain pressure readings Pressures taken at the condensing unit will vary with line set length ambient exposed line set etc and will not match the published pressures Do not use the receiver service valve to obtain high side pressures Discharge and suction pressure are highest at the beginning of the ...

Page 240: ...10 1 9 4 11 2 10 2 11 9 110 43 9 5 10 9 10 6 12 5 11 4 13 4 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 650 600 560 80 27 640 590 550 90 32 630 580 530 100 38 590 540 510 1Based on average ice slab weight of 4 1 4 75 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge P...

Page 241: ... 11 9 13 6 110 43 10 7 12 2 11 9 13 6 13 2 15 1 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 650 600 535 90 32 625 575 530 100 38 590 540 495 110 43 545 495 450 1Based on average ice slab weight of 4 6 5 2 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig...

Page 242: ...11 5 13 2 110 43 10 5 12 1 11 7 13 5 12 9 14 8 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 680 630 590 90 32 640 590 550 100 38 600 550 510 110 43 550 500 460 1Based on average ice slab weight of 4 6 5 2 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig ...

Page 243: ...6 12 5 100 38 9 7 11 4 11 0 12 9 12 0 14 0 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 635 575 540 80 27 625 570 530 90 32 585 525 490 100 38 530 475 440 1Based on average ice slab weight of 4 1 4 75 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suct...

Page 244: ...0 12 6 14 4 110 43 11 2 12 9 12 6 14 4 14 1 16 1 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 620 570 525 90 32 600 550 505 100 38 565 515 470 110 43 520 470 425 1Based on average ice slab weight of 4 6 5 2 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psi...

Page 245: ...0 12 6 14 4 110 43 11 2 12 9 12 6 14 4 14 1 16 1 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 620 570 525 90 32 600 550 505 100 38 565 515 470 110 43 520 470 425 1Based on average ice slab weight of 4 6 5 2 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psi...

Page 246: ... 12 1 11 2 12 9 100 38 10 0 11 5 11 0 12 7 13 6 15 5 110 43 11 2 12 9 12 5 14 4 13 6 15 5 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 770 710 670 80 27 760 700 660 90 32 750 690 650 100 38 720 660 620 1Based on average ice slab weight of 5 75 6 50 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Su...

Page 247: ... 10 9 12 5 11 7 13 5 12 8 14 6 110 43 11 9 13 6 12 7 14 5 13 6 15 5 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 815 745 680 90 32 720 705 615 100 38 670 625 580 110 43 620 585 550 1Based on average ice slab weight of 5 75 6 50 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig D...

Page 248: ... 10 9 12 5 11 7 13 5 12 8 14 6 110 43 11 9 13 6 12 7 14 5 13 6 15 5 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 815 745 680 90 32 720 705 615 100 38 670 625 580 110 43 620 585 550 1Based on average ice slab weight of 5 75 6 50 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig D...

Page 249: ...90 32 10 3 11 9 11 2 12 9 12 1 13 8 100 38 11 2 12 9 12 3 14 1 13 3 15 2 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 760 690 640 80 27 750 680 640 90 32 700 650 610 100 38 650 600 560 1Based on average ice slab weight of 5 75 6 50 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure ps...

Page 250: ... 12 2 14 0 13 0 14 9 14 1 16 2 100 38 13 0 14 9 14 0 16 0 14 9 17 0 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 715 665 615 90 32 645 630 560 100 38 605 570 530 110 43 570 535 505 1Based on average ice slab weight of 5 75 6 50 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig D...

Page 251: ...11 1 12 8 12 1 13 8 13 0 14 9 100 38 12 2 14 0 13 0 14 9 14 0 16 0 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 795 735 670 90 32 700 690 600 100 38 655 610 570 110 43 605 570 535 1Based on average ice slab weight of 5 75 6 50 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Di...

Page 252: ... 5 9 1 10 5 100 38 8 4 9 6 9 3 10 7 10 3 11 9 110 43 9 4 10 8 10 5 12 1 11 9 13 6 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 970 900 870 80 27 950 880 810 90 32 920 850 780 100 38 840 770 700 1Based on average ice slab weight of 5 75 6 5 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pre...

Page 253: ...ature F C 50 10 70 21 90 32 20 to 70 29 to 21 920 865 805 80 27 825 800 715 90 32 775 720 670 100 38 725 675 625 1Based on average ice slab weight of 5 75 6 5 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suction Pressure psig 20 to 50 29 to 10 200 250 40 30 170 210 70 85 70 21 230 255 50 30 185 220 70 90 80 27 2...

Page 254: ...ure F C 50 10 70 21 90 32 20 to 70 29 to 21 990 915 835 80 27 875 850 750 90 32 810 760 705 100 38 760 710 665 1Based on average ice slab weight of 5 75 6 5 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suction Pressure psig 20 to 50 29 to 10 200 250 40 30 170 210 70 85 70 21 230 255 50 30 185 220 70 90 80 27 235...

Page 255: ... F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 980 910 840 80 27 960 900 820 90 32 920 860 780 100 38 850 790 720 1Based on average ice slab weight of 7 75 8 25 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suction Pressure psig 20 to 50 29 to 10 215 260 40 22 140 185 70 95 70 21 220 270 42 24 150...

Page 256: ...Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 980 910 845 90 32 915 890 790 100 38 880 820 760 110 43 850 790 730 1Based on average ice slab weight of 7 5 8 5 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suction Pressure psig 20 to 50 29 to 10 200 250 40 25 140 170 65 75 70 21 220 270 40 25 150 185 65 85 8...

Page 257: ...emperature F C 50 10 70 21 90 32 20 to 70 29 to 21 1000 920 845 90 32 900 890 770 100 38 845 790 735 110 43 800 745 715 1Based on average ice slab weight of 7 5 8 5 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suction Pressure psig 20 to 50 29 to 10 200 250 40 25 140 170 65 75 70 21 220 270 40 25 150 185 65 85 8...

Page 258: ...10 4 11 6 100 38 10 0 11 1 9 8 10 9 10 5 11 7 110 43 10 2 11 4 10 8 12 0 12 0 13 4 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 1140 1030 950 80 27 1100 1010 940 90 32 1070 1000 910 100 38 1010 960 900 1Based on average ice slab weight of 7 5 8 25 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suc...

Page 259: ...9 8 10 9 10 6 11 8 11 6 12 9 110 43 10 4 11 6 11 3 12 6 12 3 13 6 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 1095 1020 940 90 32 1000 975 865 100 38 955 890 825 110 43 905 845 785 1Based on average ice slab weight of 7 5 8 25 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig D...

Page 260: ... 6 10 6 10 4 11 6 11 3 12 6 110 43 10 1 11 3 10 9 12 2 11 8 13 2 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 1100 1020 945 90 32 1015 1000 880 100 38 970 910 845 110 43 930 870 810 1Based on average ice slab weight of 7 5 8 25 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig D...

Page 261: ...9 7 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 1400 1300 1200 90 32 1250 1235 1075 100 38 1170 1090 1010 110 43 1100 1020 950 1 Based on average ice weight of one Harvest cycle 12 0 14 0 lb 6 0 7 0 lb per evaporator Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pres...

Page 262: ...nutes Air Temp Around the Condenser F C Water Temperature F C 50 10 70 21 90 32 35 to 70 2 to 21 1350 1235 1120 80 27 1350 1235 1115 90 32 1350 1230 1110 100 38 1350 1230 1110 1 Based on average ice weight of one Harvest cycle 12 0 14 0 lb 6 0 7 0 lb per evaporator Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Sucti...

Page 263: ...21 1770 1650 1530 90 32 1565 1500 1350 100 38 1460 1360 1260 110 43 1360 1260 1170 1 Based on average ice weight of one Harvest cycle 15 5 16 75 lb 7 75 8 38 lb per evaporator Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suction Pressure psig 20 to 70 29 to 21 215 250 60 30 140 155 65 90 80 27 215 260 60 33 140 155...

Page 264: ...21 1825 1690 1560 90 32 1625 1550 1375 100 38 1525 1405 1285 110 43 1420 1305 1195 1 Based on average ice weight of one Harvest cycle 15 5 16 75 lb 7 75 8 38 lb per evaporator Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suction Pressure psig 20 to 70 29 to 21 215 250 60 30 140 155 65 90 80 27 215 260 60 33 140 155...

Page 265: ... 21 2080 1905 1735 90 32 1925 1850 1610 100 38 1845 1700 1545 110 43 1770 1625 1485 1 Based on average ice weight of one Harvest cycle 15 5 16 75 lb 7 75 8 38 lb per evaporator Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suction Pressure psig 20 to 70 29 to 21 205 245 30 16 130 175 45 60 80 27 230 250 30 18 185 20...

Page 266: ...1 2170 1995 1810 90 32 1985 1945 1690 100 38 1890 1760 1625 110 43 1800 1680 1560 1 Based on average ice weight of one Harvest cycle 15 5 16 75 lb 7 75 8 38 lb per evaporator Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suction Pressure psig 20 to 70 29 to 21 205 245 30 16 130 175 45 60 80 27 230 250 30 18 185 200 ...

Page 267: ...21 1905 1706 1615 90 32 1705 1675 1460 100 38 1605 1495 1385 110 43 1505 1405 1305 1 Based on average ice weight of one Harvest cycle 15 5 16 75 lb 7 75 8 38 lb per evaporator Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suction Pressure psig 20 to 70 29 to 21 230 250 40 20 150 170 60 80 80 27 255 230 40 21 155 170...

Page 268: ...21 1990 1850 1715 90 32 1780 1755 1535 100 38 1675 1560 1440 110 43 1565 1460 1350 1 Based on average ice weight of one Harvest cycle 15 5 16 75 lb 7 75 8 38 lb per evaporator Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure psig Suction Pressure psig 20 to 70 29 to 21 230 250 40 20 150 170 60 80 80 27 255 230 40 21 155 170...

Page 269: ...17 8 110 43 14 5 16 5 16 1 18 3 17 6 19 9 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 2850 2650 2500 90 32 2550 2350 2200 100 38 2400 2200 2050 110 43 2200 2000 1850 1 Based on average ice weight of one Harvest cycle 24 5 27 5 lb 6 38 7 13 lb per evaporator Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure ...

Page 270: ...18 1 110 43 13 4 15 3 15 1 17 2 17 5 19 8 1Times in minutes Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 2910 2770 2510 90 32 2660 2420 2160 100 38 2520 2280 2020 110 43 2360 2120 1860 1 Based on average ice weight of one Harvest cycle 24 5 27 5 lb 6 38 7 13 lb per evaporator Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure ...

Page 271: ...he following symbols are used on all of the wiring diagrams Internal Compressor Overload Some models have external compressor overloads Fan Motor Run Capacitor Some models do not incorporate fan motor run capacitor Wire Number Designation The number is marked at each end of the wire Multi Pin Connection Electrical Box Side Compressor Compartment Side Warning Always disconnect power before working ...

Page 272: ...7A Water Valve Harvest Valve Dump Valve Water Pump Liquid Line Solenoid N Air Pump not used on all Bin Switch Clean Off Ice Low DC Voltage Plug Water Level Probe Ice Thickness Probe Clean Left Bin Right Bin Remote Bin Water Probe Ice Probe Harvest SL 1 SL 2 L2 Air Comp 55 61 20 21 22 80 77 60 76 81 75 57 98 99 82 83 58 56 97 75 26 25 9 8 6 1 2 ...

Page 273: ...te for Voltage 2 6 5 1 7 4 Trans Fuse 7A Water Valve Harvest Valve Dump Valve Water Pump Liquid Line Solenoid N Bin Switch Clean Off Ice Low DC Voltage Plug Water Level Probe Ice Thickness Probe Clean Left Bin Right Bin Remote Bin Water Probe Ice Probe Harvest SL 1 SL 2 Air Comp 55 61 20 21 22 80 77 60 76 81 57 98 99 83 58 56 N 75 28 27 9 8 6 1 2 82 ...

Page 274: ...NNECT POWER BEFORE WORKING ON ELECTRICAL CIRCUITRY TRANS FUSE 2 3 6 5 1 7 4 55 CLEAN LEFT BIN RIGHT BIN RMT BIN WTR PROBE ICE PROBE HARV SL 1 SL 2 8 9 7 6 1 2 CLEAN OFF ICE BIN SWITCH 56 56 58 83 80 79 LIQUID LINE SOLENOID WATER PUMP DUMP SOLENOID 75 N 82 99 82 98 57 60 76 27 28 LH AIR PUMP WATER VALVE LH HARV SOL 91 L2 AIR COMP LOW D C VOLTAGE PLUG ICE THICKNESS PROBE WATER LEVEL PROBE ...

Page 275: ...ENOID WATER PUMP 1 WATER PUMP 2 LIQUID SOLENOID AIR PUMP 4 AIR PUMP 3 AIR PUMP 2 AIR PUMP 1 LOW PRESSURE SWITCH OPTIONAL BIN LEVEL THERMOSTAT SWITCH ICE THICKNESS PROBE WATER LEVEL PROBE GROUND SEE SERIAL PLATE FOR VOLTAGE L2 L1 55 CLEAN OFF ICE 20 19 23 24 75 22 1 2 3 4 61 62 63 64 CLN HARV WTR LEV WFS LIQ SOL DUMP PUMP CS2 HG2 CS1 HG1 2 1 3 4 5 6 60 56 57 20 58 98A 98B 76A 76B 73 34B 73 74A 21 7...

Page 276: ...276 Part Number 80 1505 3 6 11 S3070C 230V 50HZ 1PH ...

Page 277: ...CE THICKNESS PROBE WATER LEVEL PROBE BIN SWITCH THERM ISTOR 2 6 5 1 7 1 2 6 TRANS FUSE 7A LOW D C VOLTAGE PLUG 55 56 20 61 60 57 CLEAN OFF ICE CLEAN LIGHT LEFT BIN RIGHT BIN RMT BIN WTR PROBE ICE PROBE HARV SL 1 SL 2 C 230V 21 77 76 98 58 83 22 80 81 9 8 97 N 75 L2 LIQUID LINE SOLENOID WATER PUMP DUMP VALVE HARVEST VALVE WATER VALVE RED WHITE BLUE BROWN 4 99 82 115V C NC ...

Page 278: ...CE THICKNESS PROBE WATER LEVEL PROBE BIN SWITCH THERM ISTOR 2 6 5 1 7 1 2 6 TRANS FUSE 7A LOW D C VOLTAGE PLUG 55 56 20 61 60 57 CLEAN OFF ICE CLEAN LIGHT LEFT BIN RIGHT BIN RMT BIN WTR PROBE ICE PROBE HARV SL 1 SL 2 C 230V 21 77 76 98 58 83 22 80 81 9 8 97 N 75 L2 LIQUID LINE SOLENOID WATER PUMP DUMP VALVE HARVEST VALVE WATER VALVE RED WHITE BLUE BROWN 4 99 82 115V C NC AIR PUMP 27 28 ...

Page 279: ...ial Plate for Voltage Contactor Coil L2 N 95 97 85 94 49 96 74 43 46 48 47 44 45 Low Pressure Switch Contactor Contacts Fan Cycle Control Fan Cycle Control Fan Motor Run Capacitor Run Capacitor Fan Motor Contactor Contacts Run Capacitor Start Capacitor S R Relay 5 2 1 C S R Compressor Overload High Pressure Cutout Condensing Unit with Two Fans Only ...

Page 280: ...d See Serial Plate for Voltage Contactor Coil L2 N 95 85 94 49 96 74 50 48 47 Low Pressure Switch Contactor Contacts Fan Cycle Control Fan Motor Run Capacitor Contactor Contacts Run Capacitor R C S R Compressor Overload High Pressure Cutout R COMPRESSOR CRANKCASE HEATER ...

Page 281: ...ial Plate for Voltage Contactor Coil L2 N 95 85 94 49 96 74 50 48 47 Low Pressure Switch Contactor Contacts Fan Cycle Control Fan Motor Run Capacitor Contactor Contacts Run Capacitor R C S R Compressor Overload High Pressure Cutout R COMPRESSOR CRANKCASE HEATER PTCR 44 46 45 ...

Page 282: ... CVD2075 CVD2085 CVD3085 3 PHASE L1 Ground See Serial Plate for Voltage Contactor Coil L2 95 97 94 96 74 85 Low Pressure Switch Contactor Fan Cycle Control Fan Motor Run Capacitor Fan Motor Run Capacitor T2 T1 Compressor High Pressure Cutout Condensing Unit with Two Fans Only L3 Fan Cycle Control T3 L1 L2 L3 ...

Page 283: ...Part Number 80 1505 3 6 11 283 CVD3085 380V 50HZ 3PH ...

Page 284: ... NOT USED ON ALL MODELS WATER PURGE ADJUSTMENT CLEAN LIGHT YELLOW LEFT BIN LIGHT GREEN RIGHT BIN LIGHT GREEN REMOTE BIN LIGHT GREEN WATER PROBE LIGHT GREEN ICE PROBE LIGHT GREEN HARVEST LIGHT RED SAFETY LIMIT 1 LIGHT RED SAFETY LIMIT 2 LIGHT RED ICE THICKNESS PROBE 3 16 CONNECTION WATER LEVEL PROBE REMOTE BIN AUTOMATIC CLEANING SYSTEM PLUG AuCS DC LOW VOLTAGE ELECTRICAL PLUG BIN SWITCH ES TOGGLE S...

Page 285: ...DELS WATER PURGE ADJUSTMENT CLEAN LIGHT YELLOW LEFT BIN LIGHT GREEN RIGHT BIN LIGHT GREEN REMOTE BIN LIGHT GREEN WATER PROBE LIGHT GREEN ICE PROBE LIGHT GREEN HARVEST LIGHT RED SAFETY LIMIT 1 LIGHT RED SAFETY LIMIT 2 LIGHT RED ICE THICKNESS PROBE 3 16 CONNECTION WATER LEVEL PROBE AUTOMATIC CLEANING SYSTEM PLUG AuCS DC LOW VOLTAGE ELECTRICAL PLUG BIN SWITCH ES TOGGLE SWITCH 56 55 SERVICE MODE ...

Page 286: ... GREEN WATER SOLENOID RED LIQUID SOLENOID RED DUMP VALVE RED WATER PUMP RED CURTAIN SWITCH 4 GREEN CURTAIN SWITCH 3 GREEN CURTAIN SWITCH 2 GREEN CURTAIN SWITCH 1 GREEN HARVEST VALVE 1 RED HARVEST VALVE 2 RED HARVEST VALVE 3 RED HARVEST VALVE 4 RED CURTAIN SWITCHES TOGGLE SWITCH LOW PRESSURE SWITCH OPTIONAL BIN THERMOSTAT AC LINE VOLTAGE PLUG ...

Page 287: ...Valve RECEIVER RECEIVER SERVICE VALVE LLSV SUCTION SHUT OFF VALVE HEAT EXCHANGER CHECK VALVE HEAD PRESSURE CONTROL VALVE ACCUMULATOR TXV HARVEST VALVE COMPRESSOR EVAPORATOR LIQUID LINE SHUT OFF VALVE CONDENSER S TRAP REQUIRED 21 OR GREATER RISE DRIER SUCTION LINE FILTER Ice Machine Head Section Condensing Unit ...

Page 288: ...E VALVE LLSV SUCTION SHUT OFF VALVE HEAT EXCHANGER CHECK VALVE HEAD PRESSURE CONTROL VALVE ACCUMULATOR TXV HARVEST VALVE COMPRESSOR EVAPORATOR LIQUID LINE SHUT OFF VALVE CONDENSER S TRAP REQUIRED 21 OR GREATER RISE DRIER SUCTION LINE FILTER Ice Machine Head Section Condensing Unit ACCESS VALVE CHECK VALVE ...

Page 289: ...cumulator Suction Filter Condenser Head Pressure Control Valve S Trap Required 21 or Greater Rise Ice Machine Head Section Liquid Line Shut Off Valve Suction Line Shut Off Valve Heat Exchanger TXV Evaporator Harvest Valve Check Valve Receivers Receiver Service Valve Drier Liquid Line Solenoid Valve ...

Page 290: ...ion Filter Condenser Head Pressure Control Valve S Trap Required 21 or Greater Rise Ice Machine Head Section Liquid Line Shut Off Valve Suction Line Shut Off Valve Heat Exchanger TXV Evaporator Harvest Valve Check Valve Receivers Receiver Service Valve Drier Liquid Line Solenoid Valve Access Valve Check Valve ...

Page 291: ...IQUID LINE SHUT OFF VALVE LLSV EVAPORATOR HEAT EXCHANGER CONDENSER SUCTION FILTER CHECK VALVE RECEIVER DRIER HEAD PRESSURE CONTROL VALVE ACCUMULATOR HARVEST VALVE SUCTION SHUT OFF VALVE EVAPORATOR TXV HARVEST VALVE S Trap Required 21 or Greater Rise RECEIVER SERVICE VALVE ...

Page 292: ...MPRESSOR LIQUID LINE SHUT OFF VALVE LLSV EVAPORATOR HEAT EXCHANGER CONDENSER SUCTION FILTER CHECK VALVE RECEIVER DRIER HEAD PRESSURE CONTROL VALVE ACCUMULATOR HARVEST VALVE SUCTION SHUT OFF VALVE EVAPORATOR TXV HARVEST VALVE S Trap Required 21 or Greater Rise RECEIVER SERVICE VALVE ...

Page 293: ...LVE LLSV EVAPORATOR HEAT EXCHANGER CONDENSER SUCTION FILTER CHECK VALVE RECEIVER DRIER HEAD PRESSURE CONTROL VALVE ACCUMULATOR HARVEST VALVE SUCTION SHUT OFF VALVE EVAPORATOR TXV HARVEST VALVE S Trap Required 21 or Greater Rise RECEIVER SERVICE VALVE Water Regulating Valve Condenser Water Outlet ...

Page 294: ... VALVE EXPANSION VALVE EXPANSION VALVE HEAT EXCHANGER HEAT EXCHANGER DRIER RECEIVER CHECK VALVE SHUT OFF VALVES S TRAPS REQUIRED 21 OR GREATER RISE ACCUMULATOR SUCTION LINE FILTER SCROLL COMPRESSOR HEAD PRESSURE CONTROL VALVE CONDENSER TUBING MUST BE CONNECTED TO TEE AS SHOWN CVD CONDENSING UNIT ICE MACHINE HEAD SECTION RECEIVER SERVICE VALVE LIQUID LINE SOLENOID VALVE DRIER RECEIVER RECEIVER SERV...

Page 295: ...ONDENSING UNIT ICE MACHINE HEAD SECTION EVAPORATOR 1 EVAPORATOR 2 EVAPORATOR 3 EVAPORATOR 4 HARVEST SOLENOID VALVE HARVEST SOLENOID VALVE HARVEST SOLENOID VALVE HARVEST SOLENOID VALVE EXPANSION VALVE EXPANSION VALVE EXPANSION VALVE EXPANSION VALVE HEAT EXCHANGER HEAT EXCHANGER DRIER RECEIVER CHECK VALVE RECEIVER SERVICE VALVE LIQUID LINE SOLENOID VALVE DRIER RECEIVER RECEIVER SERVICE VALVE LIQUID ...

Page 296: ...296 Part Number 80 1505 3 6 11 This Page Intentionally Left Blank ...

Page 297: ......

Page 298: ...Manitowoc Ice 2110 South 26th Street P O Box 1720 Manitowoc WI 54221 1720 USA Ph 920 682 0161 Fax 920 683 7589 Visit us online at www manitowocice com 2009 Manitowoc Part Number 80 1505 3 6 11 ...

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