Page 1 Manitowoc S Model & Ice Beverage QuietQube ® Ice Machines Technician’s Handbook 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 Part Number 80-1505-3 6/11...
Page 3: Safety Notices
Safety Notices As you work on Manitowoc equipment, be sure to pay close attention to the safety notices in this handbook. Disregarding the notices may lead to serious injury and/or damage to the equipment. Throughout this handbook, you will see the following...
Page 4 ! Caution Proper installation, care and maintenance are essential for maximum performance and trouble- free operation of your Manitowoc equipment. If you encounter problems not covered by this handbook, do not proceed, contact Manitowoc Foodservice Group. We will be happy to provide assistance.
Page 5: Table Of Contents
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 .
Page 6 Operational Checks ....61 General ......61 Water Level .
Page 7 Troubleshooting Safety Limits ..... . . 123 Safety Limit Analysis ....125 Safety Limit#1 .
Page 8 Component Check Procedures Electrical Components ....175 Main Fuse ..... . 175 Bin Switch .
Page 9 Component Specifications Main Fuse ..... . 233 Bin Switch ..... . 233 Harvest Assist Air Pump .
Page 10 IB0822DC/CVD885 Series Remote Air Cooled Machines After Serial Number 110682385 ..... 250 IB0824YC/CVD885 Series Remote Air Cooled Machines After Serial Number 110682385 .
Page 11 SY1874C/CVD1885 Series Remote Air Cooled ......264 SD2072C/CVD2075 Series Remote Air Cooled ......265 SY2074C/CVD2075 Series Remote Air Cooled .
Page 12 Electronic Control Board ... . 284 Single and Twin Evaporator Models . . 284 Quad Evaporator Models ..286 Refrigeration Tubing Schematics ..287 S600C/S680C/S850C/S1000C/S1200C .
Page 13: General Information
General Information MODEL NUMBERS This manual covers the following models: Ice Machine Head CVD Condensing Unit* Section SD0672C SY0674C CVD0675 IB0624YC IB0622DC SD0682C SY0684C CVD0685 IB0684YC IB0682DC SD0872C SY0874C CVD0885 IB0824YC IB0822DC SD1072C CVD1085 SY1074C CVD1185 IB1024YC CVD1285 IB1022DC CVD1085 CVD1075 SD1272C CVD1285...
Page 14: How To Read A Model Number
HOW TO READ A MODEL NUMBER Head Section # CUBE SIZE CONDENSER TYPE 7 CVD REMOTE 2 DICE AIR-COOLED AIR-COOLED 3 DICE WATER-COOLED 4 HALF-DICE AIR-COOLED 5 HALF-DICE WATER-COOLED S Y 1074 C 3 ADDITIONAL SPECS 3 PHASE ICE MACHINE SI INCLUDES ICE MACHINE MODEL...
Page 15: Ice Cube Sizes
Warning All Manitowoc ice machines require the ice storage system (bin, dispenser, etc.) incorporate an ice deflector.
Page 16: Model/Serial Number Location
MODEL/SERIAL NUMBER LOCATION These numbers are required when requesting information from your local Manitowoc Distributor, service representative, or Manitowoc Ice, Inc. The model and serial number are listed on the OWNER WARRANTY REGISTRATION CARD. They are also listed on the MODEL/SERIAL NUMBER DECAL affixed to the ice machine.
Page 17: Ice Machine Warranty Information
REGISTRATION CARD as soon as possible to validate the installation date. 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.
Page 18 The following Warranty outline is provided for your convenience. For a detailed explanation, read the warranty bond shipped with each product. Contact your local Manitowoc representative or Manitowoc Ice if you need further warranty information. PARTS 1. Manitowoc warrants the ice machine against...
Page 19 AUTHORIZED WARRANTY SERVICE To comply with the provisions of the warranty, a refrigeration service company qualified and authorized by your Manitowoc Distributor, or a Contracted Service Representative must perform the warranty repair. SERVICE CALLS Normal maintenance, adjustments and cleaning as outlined in this manual are not covered by the warranty.
Page 20 Subject to the exclusions and limitations below, Manitowoc Ice (“Manitowoc”) warrants to the original consumer that any new ice machine manufactured by Manitowoc (the “Product”) shall be free of defects in material or workmanship for the warranty period outlined below under normal use and maintenance,...
Page 21 (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.
Page 22 REGISTRATION CARD To secure prompt and continuing warranty service, this warranty registration card must be completed and sent to Manitowoc within thirty (30) days from the sale date. Complete the registration card and send it to Manitowoc. Part Number 80-1505-3 6/11...
Page 23: Installation
Installation LOCATION OF ICE MACHINE S600C/S680C/S850C/S1000C/S1200C/S1470C/ S1870C/S2070C/S2170C/S3070C The location selected for the ice machine head section must meet the following criteria. If any of these criteria are not met, select another location. • The location must be free of airborne and other contaminants.
Page 24: Ice Machine Head Section Clearance Requirements
• The location must be free of airborne and other contaminants. • The air temperature must be at least 35°F (1.6°C), but must not exceed 110°F (43.4°C). • The location must not be near heat-generating equipment or in direct sunlight. •...
Page 25: Stacking Two Ice Machines On Asingle Storage Bin
S QuietQube ice machines cannot be stacked. However an adapter is available that allows two S QuietQube ice machines to be placed side by side on 60” Manitowoc F & B style bins. ICE DEFLECTOR An ice deflector is required for all ice machines installed on a bin.
Page 26: Removing The Front Panels
REMOVING THE FRONT PANELS 1. Disconnect power to ice machine. 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.
Page 27: Location Of Cvd Condensing Unit
LOCATION OF CVD CONDENSING UNIT ® The location selected for the CVD Condensing Unit must meet the following criteria. If any of these criteria are not met, select another location. • CVD885/CVD1075/CVD1085/CVD1485/ CVD1885/CVD2085 Only - The air temperature must be at least -20°F (-28.9°C) but must not exceed 130°F (54.4°C).
Page 28: Condensing Unit Clearance Requirements
CONDENSING UNIT CLEARANCE REQUIREMENTS CVD675/CVD685/CVD885/CVD1075/CVD1085/ CVD1185/ CVD2075/CVD2085 Top/Sides - There is no minimum clearance required, although 6” (15.2 cm) is recommended for efficient operation and servicing only. Front/Back - 48” (122 cm) CVD1285/CVD1485/CVD1885 Top/Sides - There is no minimum clearance required, although 6”...
Page 29: Bin Installation
BIN INSTALLATION All ice machines installed on a bin require an ice deflector. Manitowoc bins have a built in deflector that requires no modifications when used with a forward facing evaporator. Ice machines with multiple evaporators require a deflector kit.
Page 30 Leveling the Ice Storage Bin 1. Screw the leveling legs onto the bottom of the bin. 2. Screw the foot of each leg in as far as possible. ! Caution The legs must be screwed in tightly to prevent them from bending. 3.
Page 31: S1470C/S1870C/S2070C/S2170C Installation On A Manitowoc Bin
S1470C/S1870C/S2070C/S2170C INSTALLATION ON A MANITOWOC BIN An ice deflector kit is required for installation. Order appropriate kit (30” or 48”) for your bin. Step 1 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.
Page 32 Step 2 Install front support and filler panels. A. Remove foam tape from front support location. B. Set front support in place and install foam tape. C. Position filler panels (align with front support), drill and secure. D. Install foam tape on front and back. Seal all foam tape edges.
Page 33: Ice Machine On A Dispenser Installation
Adapters are not included with the ice machine, dispenser or bin and must be ordered separately. When a non- Manitowoc adapter is used, verify the adapter is compatible with Manitowoc Ice/Beverage Ice Machines prior to installation.
Page 34 Typical Ice Beverage on a Dispenser 1. Install bin level thermostat bracket. 2. Set adapter on dispenser. Position the adapter so that the front flange of the adapter will be up against the front lip of the dispenser. Adapter may have to be moved towards the back of the dispenser.
Page 35 6. Secure the ice machine to the adaptor with two (2) #8-32 screws supplied with the kit. 7. Set 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.
Page 36: Ice Machine Head Section Water Supply And Drains
Important If you are installing a Manitowoc water filter system, refer to the Installation Instructions supplied with the filter system for ice making water inlet connections. Potable Water Inlet Lines Follow these guidelines to install water inlet lines: •...
Page 37 Drain Connections Follow these guidelines when installing drain lines to prevent drain water from flowing back into the ice machine and storage bin: • Drain lines must have a 1.5 in. drop per 5 ft. of run (2.5 cm per meter), and must not create traps. •...
Page 38: Water Cooled Condenser Water Supply And Drains
WATER COOLED CONDENSER WATER SUPPLY AND DRAINS Water Cooled Condenser Lines Follow these guidelines to install water lines: • Contact your distributor if your water pressure is greater than 150 psig (1034 kPA). A special order condensing unit is available that allows water pressure up to 350 psig (2413 kPA).
Page 39: Electrical Requirements
ELECTRICAL REQUIREMENTS Local or state electrical code, length of wire run or materials used, can increase the minimum wire or breaker size requirement. A qualified electrician must determine the wire and breaker size, although the minimum wire size must meet or exceed the specifications in these charts.
Page 40: Condensing Units
Condensing Units ® Condensing Unit Max. Fuse/ Voltage Min. Phase Circuit Circuit Cycle Amps Breaker 208-230/1/60 15 amp CVD0675 208-230/3/60 15 amp 230/1/50 15 amp 208-230/1/60 15 amp 11.0 CVD0685 208-230/3/60 15 amp 208-230/1/60 20 amp 11.8 CVD0885 208-230/3/60 15 amp 230/1/50 20 amp 10.0...
Page 41: Refrigeration System Installation
REFRIGERATION SYSTEM INSTALLATION Remote Single QuietQube® Circuit Line Set* Ice Machine Condenser S0600C CVD675 IB0620C S0680C CVD685 RC-21 IB0680C RC-31 S0850C RC-51 CVD885 IB0820C S1000C CVD1085 IB1020C S1200C CVD1285 CVD1185 IB1020C CVD1285 RC-20 CVD1075 RC-30 CVD1485 S1470C RC-50 CVD1486 S1870C CVD1885 S2070C CVD2075...
Page 42 ! Caution The 60-month compressor warranty (including the 36-month labor replacement warranty) will not apply if the Manitowoc Ice Machine and Manitowoc CVD ® Condensing Unit are not installed according to specifications. This warranty also will not apply if the...
Page 43 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.
Page 44 Refrigeration Line Set Installation Refrigeration line set installation consists of vertical and horizontal line set distances between the ice machine and the condensing unit. The following guidelines, drawings and calculation methods must be followed to assure proper oil return and CVD ®...
Page 45 A. LINE SET LENGTH ! 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! 100 feet (30.5 m) Length: The maximum measured length the line set can be.
Page 46 B. Line Set Rise or Drop 35 FT. (10.7 M) MAXIMUM DISTANCE SV1751 35 ft. (10.7 m) Rise: The maximum distance the CVD ® Condensing Unit can be above the ice machine. 15 FT. (4.5 M) MAXIMUM DISTANCE SV1750 15 ft. (4.5 m) Drop: The maximum distance the CVD ®...
Page 47 (“S” type) to be installed. Install the 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). 21 FT. OR MORE RISE ADDITIONAL TRAP KIT REQUIRED.
Page 48 SERVICE LOOP • The supplied service loop (on Ice Beverage ice machines) is an installation requirement. Excess tubing length must be sufficient to allow 180° rotation of the ice machine. • A service loop is not considered an oil trap. •...
Page 49 CONNECT THE LINE SET TO THE ICE MACHINE HEAD SECTION The line set can be routed for entry through the top or rear of the ice machine head section. • Top routing requires the cover to be trimmed. • Rear routing requires the use of the supplied 90° elbows.
Page 50 CONNECT THE LINE SET TO THE CVD ® CONDENSING UNIT Warning The condensing unit ships from the factory pressurized with a 50/50 mixture of nitrogen/helium. Bleed off pressure from both suction and liquid line access ports prior to cutting into refrigeration lines. The compressor oil rapidly absorbs moisture.
Page 51 LIQUID LINE SUCTION LINE S3070C TUBING SUCTION LINE ON MUST BE CONDENSING UNIT CONNECTED TO TEE AS SHOWN SUCTION SUCTION LINE LINE FROM FROM HEAD HEAD SECTION SECTION Part Number 80-1505-3 6/11...
Page 52 PRESSURE TEST AND EVACUATE THE LINE SET AND CVD CONDENSING UNIT Schrader valve core removal tools that allow for removal and installation of the valve cores without removing manifold gauge set hoses are recommended to decrease the evacuation time. Leave the line set shut-off valves closed (front seated). All CVD condensing units manufactured after December 2009 contain a check valve in the compressor discharge line.
Page 53 Connection of a manifold gauge set (or a hose with core depressors on both ends) between the suction filter access port and the compressor access valve (located between the compressor and discharge line check valve) is required. CONNECT MANIFOLD GAUGE SET OR CHECK VALVE HOSE WITH CORE DEPRESSORS ON BOTH ENDS LINESET...
Page 54 Connect a vacuum pump to both of the line set shut-off valves located at the back of the ice machine head section or from the schrader valves located in the Condensing Unit. Schrader valve core removal ® tools (that allow for putting the cores back in without removing vacuum pump hoses) will greatly decrease evacuation time.
Page 55 OPEN REFRIGERATION SERVICE VALVES The suction line, liquid line and receiver service valves are closed during shipment and installation. Open the valves prior to starting the ice machine. A. Slowly backseat (open – turn counterclockwise) the suction line shut-off valve. B.
Page 56 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 Part Number 80-1505-3 6/11...
Page 57 USE ALLEN WRENCH TO OPEN (TURN COUNTERCLOCKWISE) LIQUID AND SUCTION LINE SHUT OFF VALVES S3070C ! Caution After opening suction, discharge and receiver service valves, refrigerant pressure will not be detected until the toggle switch is placed in the ice position and the harvest valve energizes.
Page 58 TURN COUNTERCLOCKWISE TO OPEN. RECEIVER SERVICE VALVE CAP (TURN COUNTERCLOCKWISE SV1756 TO REMOVE.) RECEIVER SERVICE VALVE Verify O-rings in schrader valve caps are intact and reinstall on shut-off valves to prevent refrigerant leakage. Replace shut-off valve access caps and torque to the following specifications. Torque Values Stem 18-20 ft.
Page 59 INSULATION REQUIREMENTS To prevent condensation, the entire suction line including the shut-off valve must be insulated. All insulation must be airtight and sealed at both ends. The following insulation requirements prevent condensation at 90°F (32.2°C) ambient 90% Relative Humidity. If higher humidity is expected, increase insulation thickness.
Page 60 Suction Shut-off Valve Insulation The preformed suction shut-off valve insulation is located in the plastic bag taped to the water curtain. PREFORMED INSULATION TIGHTEN VALVE CAPS TO SPECIFICATIONS. A. Verify valve and schrader caps are tightened to specifications (see step 6). PLACE TAB BETWEEN VALVE BODY AND PANEL.
Page 61: Operational Checks
Operational Checks GENERAL Your Manitowoc ice machine was factory-operated and adjusted before shipment. Normally, a newly installed ice machine does not require any adjustment. To ensure proper operation, always perform these Operational Checks when starting the ice machine: • For the First Time •...
Page 62: Ice Thickness Check
ICE THICKNESS CHECK After a harvest cycle, inspect the ice cubes in the ice storage bin. The ice thickness probe is factory-set to maintain the ice bridge thickness at 1/8” (3.2 mm). NOTE: Make sure the water curtain is in place when performing this check.
Page 63: Harvest Sequence Water Purge
HARVEST SEQUENCE WATER PURGE The Harvest sequence water purge adjustment may only be used when the ice machine is hooked up to special water systems, such as a reverse osmosis or de-ionized water treatment system. Warning Disconnect electric power to the ice machine at the electrical disconnect before proceeding.
Page 64: Electronic Bin Thermostat Instructions Ib600C/Ib680C/Ib800C/Ib1000C Only Positioning
Electronic Bin Thermostat Instructions IB600C/IB680C/IB800C/IB1000C Only POSITIONING 1. Remove water trough. 2. Refer illustration below. A. Loosen rear screw. B. Remove front screw & rotate probe/bracket. C. Re-install front screw & tighten. D. Tighten rear screw. 3. Re-install water trough. 4.
Page 65 This Page Intentionally Left Blank Part Number 80-1505-3 6/11...
Page 66 This Page Intentionally Left Blank Part Number 80-1505-3 6/11...
Page 67: Component Identification
Component Identification ICE MACHINE HEAD SECTIONS S600C/S680C/S850C/S1000C/S1200C REFRIGERATION EVAPORATOR ACCESS VALVES WATER TOGGLE THICKNESS DISTRIBUTION SWITCH CONTROL TUBE WATER CURTAIN WATER CONTROL BOX TROUGH WATER INLET LOCATION, THE WATER INLET VALVE IS LOCATED IN THE REFRIGERATION COMPARTMENT WATER LEVEL PROBE WATER PUMP Part Number 80-1505-3 6/11...
Page 68 S1470C/S1870C/S2070C/S2170C DISTRIBUTION TUBE THICKNESS EVAPORATOR PROBE PUMP SPLASH SHIELD DRIER SWITCH LIQUID LINE WATER SOLENOID TROUGH VALVE SHIELD RECEIVER DUMP WATER VALVE WATER DAMPER TROUGH PUMP WATER LEVEL ICE/OFF/ PROBE CLEAN SWITCH LEFT SIDE PUMP TXV SENSING BULB BOOT HARVEST VALVE WATER EXPANSION...
Page 69 IB0600C/IB0680C/IB0800C/IB1000C ELECTRICAL WATER COMPARTMENT DISTRIBUTION ICE/OFF/CLEAN TUBE TOGGLE SHUT OFF SWITCH VALVES THICKNESS PROBE DUMP WATER VALVE CURTAIN WATER TROUGH ELECTRICAL COMPARTMENT RECEIVER SERVICE VALVE DISCHARGE LINE WATER CHECK INLET VALVE VALVE LIQUID LINE DRIER LIQUID LINE SOLENOID COOL VALVE VAPOR RECEIVERS VALVE...
Page 70 S3070C Part Number 80-1505-3 6/11...
Page 71: Condensing Units
CONDENSING UNITS ® CVD675/CVD685/CVD875/CVD885/CVD1075/CVD1085/ CVD1185/CVD1285/CVD1485 HEAD PRESSURE CONDENSER CONTROL VALVE FAN MOTOR ACCESS VALVE ELECTRICAL COMPARTMENT CONDENSER LPCO COMPRESSOR CHECK VALVE LIQUID LINE AND SUCTION LINE CONNECTION SUCTION ACCESS VALVE POINTS ACCUMULATOR CVD1486 LIQUID LINE AND SUCTION LINE HEAD PRESSURE CONNECTION CONTROL VALVE POINTS...
Page 72 CVD1885/CVD2075/CVD2085/CVD3085 ACCESS VALVES CONDENSER FAN MOTOR (CVD3085 HAS 2 FANS) ELECTRICAL CONDENSER COMP. HEAD PRESSURE CONTROL VALVE LIQUID LINE SUCTION LINE CONNECTION POINTS CHECK VALVE SUCTION ACCESS VALVE ACCUMULATOR COMPRESSOR Part Number 80-1505-3 6/11...
Page 73: Maintenance
An extremely dirty ice machine must be taken apart for cleaning and sanitizing. Manitowoc Ice Machine Cleaner and Sanitizer are the only products approved for use in Manitowoc ice machines. This Manitowoc Ice Machine has two separate cleaning procedures.
Page 74: Cleaning / Sanitizing Procedure
Sanitizer 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.
Page 75 Step 2 Set the toggle switch to the OFF position after ice falls from the evaporator at the end of a Harvest cycle. Or, set the switch to the OFF position and allow the ice to melt off the evaporator. ! Caution Never use anything to force ice from the evaporator.
Page 76: Parts Removal For Cleaning/Sanitizing
PARTS REMOVAL FOR CLEANING/ SANITIZING S600C/S680C/S850C/S1000C/S1200C A. Remove the water curtain • Gently flex the curtain in the center and remove it from the right side. • Slide the left pin out. B. Remove the ice thickness probe • Compress the hinge pin on the top of the ice thickness probe.
Page 77 S1470C/S1870C/S2170C A. Remove Splash Shields. • Grasp the top center of splash shields. • Lift up and then out. 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.
Page 78 C. Remove the water trough shield. • Grasp the water trough shield in the center and the left end. • Flex the water trough shield in the center and pull the left end forward until clear of the side wall. Repeat for the right end. •...
Page 79 Part Number 80-1505-3 6/11...
Page 80 S3070C A.Remove front evaporator shield. • Remove four quarter turn connectors • Remove splash shield B.Remove Splash Shields. NOTE: Each evaporator has a splash shield that must be removed - total of four splash shields. • Grasp the top center of splash shields. •...
Page 81 Part Number 80-1505-3 6/11...
Page 82 Step 7 Mix a solution of cleaner and warm water. Depending upon the amount of mineral buildup, a larger quantity of solution may be required. Use the ratio in the table below to mix enough solution to thoroughly clean all parts. Solution Type Water Mixed With...
Page 83: Sanitizing Procedure
SANITIZING PROCEDURE Step 10 Mix a solution of sanitizer and warm water. Solution Type Water Mixed With 4 oz (120 ml) Sanitizer 6 gal. (23 l) sanitizer Step 11 Use 1/2 of the sanitizer/water solution to sanitize all removed components. Use a spray bottle to liberally apply the solution to all surfaces of the removed parts or soak the removed parts in the sanitizer/water solution.
Page 84 CLEAN position. Step 16 Wait until the water trough refills and water flows over the evaporator (approximately 3 minutes). Add the proper amount of Manitowoc Ice Machine Sanitizer to the water trough by pouring between the water curtain/splash shields and evaporator.
Page 85: Procedure To Clean Heavily Scaled Ice Machines
Sanitizer 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.
Page 86 Ice machine cleaner is used to remove lime scale and mineral deposits. Ice machine sanitizer disinfects and removes algae and slime. Step 1 Remove front door and top cover. This will allow easiest access for adding cleaning and sanitizing solutions. Step 2 Set the toggle switch to the OFF position after ice falls from the evaporator at the end of a Harvest cycle.
Page 87 Step 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: *S3070C Only - 80 minutes. Warning Disconnect the electric power to the ice machine at the electric service switch box.
Page 88: Parts Removal For Cleaning/Sanitizing
PARTS REMOVAL FOR CLEANING/SANITIZING S600C/S680C/S850C/S1000C/S1200C A. Remove the water curtain • Gently flex the curtain in the center and remove it from the right side. • Slide the left pin out. B. Remove the ice thickness probe • Compress the hinge pin on the top of the ice thickness probe.
Page 89 E. Remove the water level probe • Pull the water level probe straight down to disengage. • Lower the water level probe until the wiring connector is visible. • Disconnect the wire lead from the water level probe. • Remove the water level probe from the ice machine.
Page 90 Part Number 80-1505-3 6/11...
Page 91 IB620C/IB680C/IB820C/IB1020C A. Remove the splash shield • Remove quarter turn connector from the right side of splash shield. • Gently bow the center of the splash shield and lift up and forward to remove. Important Splash Shield must be reinstalled to prevent water leakage.
Page 92 E. Remove the water trough • Remove the quarter turn fasteners (turn counterclockwise) securing the trough in place. • Pull forward on the water trough until the rear pins disengage from the water trough. • Lift up and forward on the front of the water trough while allowing the rear of the water trough to drop.
Page 93 G. Remove the water pump. • Note position of water pump outlet, and then disconnect vinyl hose from the pump outlet. • Rotate the thumbscrew that secures the pump to the bulkhead 1/4 turn clockwise. • Rotate the water pump assembly 1/4 turn counterclockwise.
Page 94 Part Number 80-1505-3 6/11...
Page 95 S1470C/S1870C/S2070C/S2170C A. Remove Splash Shields. • Grasp the top center of splash shields. • Lift up and then out. 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.
Page 96 E. Remove 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. F. Remove the water pump assembly. •...
Page 97 Part Number 80-1505-3 6/11...
Page 98 S3070C A.Remove front evaporator shield. • Remove four quarter turn connectors • Remove splash shield B.Remove left and right evaporator top covers. • Remove two thumbscrews from the front of each evaporator top cover. • Lift front of cover, pull forward to remove. C.Remove Splash Shields.
Page 99 E. Remove distribution tubes. NOTE: Each evaporator has a distribution that must be removed - total of four distribution tubes. • Distribution tube thumbscrews are retained to prevent loss. Loosen thumbscrews but do not pull thumbscrews out of distribution tube. •...
Page 100 Part Number 80-1505-3 6/11...
Page 101 Step 7 Mix a solution of cleaner and warm water. Depending upon the amount of mineral buildup, a larger quantity of solution may be required. Use the ratio in the table below to mix enough solution to thoroughly clean all parts. Solution Type Water Mixed With...
Page 102: Sanitizing Procedure
CLEAN position. Step 15 Wait about two minutes or until water starts to flow over the evaporator. Add the proper amount of Manitowoc Ice Machine Sanitizer to the water trough by pouring between the water curtain/splash shields and evaporator.
Page 103 Step 16 The ice machine will stop after the sanitize cycle (approximately *35 minutes). Place the toggle switch in the OFF position and disconnect power to the ice machine. *S3070C Only - 80 minutes. Warning Disconnect the electric power to the ice machine at the electric service switch box.
Page 104: Additional Component Removal
ADDITIONAL COMPONENT REMOVAL The following components may be removed for easier access in some installations or they may need to be removed and cleaned to correct an operational problem. Water Dump Valve The water dump valve normally does not require removal for cleaning.
Page 105 SPRING COIL NYLON WASHER PLUNGER DIAPHRAM MOUNTING BRACKET VALVE BODY Dump Valve Disassembly Part Number 80-1505-3 6/11...
Page 106 Water Inlet Valve The water inlet valve normally does not require removal for cleaning. Follow the instructions below to determine if removal is necessary. 1. Set the ICE/OFF/CLEAN switch to OFF. Locate the water inlet (in the water area of the ice machine).
Page 107 Drain Line Check Valve The drain line check valve (not used on all models) should be inspected and cleaned, whenever the ice machine is cleaned. Water loss from the sump trough will indicate removal and cleaning are required. CHECK VALVE CHECK VALVE ASSEMBLY SV3154...
Page 108 Evaporator 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: Removal From Service/Winterization
Removal from Service/Winterization GENERAL Special precautions must be taken if the ice machine is to be removed from service for an extended period of time or exposed to ambient temperatures of 32°F (0°C) or below. ! Caution If water is allowed to remain in the ice machine in freezing temperatures, severe damage to some components could result.
Page 110: Cvd1486 Water Cooled Condensing Unit
CVD1486 WATER COOLED CONDENSING UNIT Place the ice machine toggle switch into the OFF position. 1. "Front seat" (shut off) 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.
Page 111: Sequence Of Operation
Sequence of Operation NOTE: The toggle switch must be in the ice position and the water curtain/ice dampers must be in place on the evaporator before the ice machine will start. INITIAL START-UP OR START-UP AFTER AUTOMATIC SHUT-OFF Water Purge Before the compressor starts, the water pump and water dump solenoid are energized to purge the ice machine of old water.
Page 112 Refrigeration System Start-Up Ice Machine Head Section: The liquid line solenoid valve and water inlet valve energize. Five seconds later single and twin evaporator models de-energize the harvest valve(s) and air compressor (when used). CVD Condensing Unit: When the refrigerant pressure is high enough to close the low-pressure control the contactor coil energizes and the compressor starts.
Page 113: Freeze Sequence
FREEZE SEQUENCE Pre chill The compressor lowers the temperature of the evaporator(s) before the water pump(s) are energized. The water fill valve will remain energized until water contacts the water level probe. Energized Control Board Lights- Single Evaporators = Left Bin (green) Twin Evaporators = Left &...
Page 114: Harvest Sequence
HARVEST SEQUENCE Water Purge The air compressor (when used) and the harvest valve(s) open at the beginning of the water purge to divert hot refrigerant gas into the evaporator. The water pump continues to run, and the water dump valve energizes to purge the water in the water trough. Single and twin evaporator models energize the water fill valve for the last 15 seconds of the water purge cycle.
Page 115 Harvest The air compressor (when used) remains energized and the harvest valve(s) remains open. The refrigerant gas warms the evaporator causing the cubes to slide, as a sheet, off the evaporator and into the storage bin. Energized Control Board Lights- Single Evaporators = Left Bin (green), Harvest (red) Twin Evaporators = Left &...
Page 116 Quad &Twin Evaporator Models Only 6A. Water Assist Harvest Feature Typical duration of a Harvest sequence is less than 2.5 minutes. When the Harvest sequence time reaches 4 minutes, the following occurs: 4 minutes into a Harvest sequence: The water fill valve will energize to fill the trough with water until reaching the water level probe.
Page 117: Automatic Shut-Off
AUTOMATIC SHUT-OFF Automatic Shut-Off Ice Machine Section: Shuts off when: • The storage bin is full at the end of a harvest sequence. • The sheet of cubes fails to clear the water curtain and hold it open. • Ice contacts the bin level thermostat probe (when used).
Page 118 Single & Twin Evaporator Energized Parts Chart Ice Making Refrigeration Length of Water Liquid Line Water Harvest Water Inlet Compressor & Sequence of Air Pumps Dump Solenoid Pump Valve (s) Valve Condenser Fan Time Valve Valve Operation Motor Start-Up - Initial or After Auto Shut Off 45 Seconds 1.
Page 119 Single & Twin Evaporator Energized Parts Chart (Continued) Ice Making Refrigeration Length of Water Liquid Line Water Harvest Water Inlet Compressor & Sequence of Air Pumps Dump Solenoid Pump Valve (s) Valve Condenser Fan Time Valve Valve Operation Motor Bin switch 6.
Page 120 Quad Evaporator Energized Parts Chart Ice Making Refrigeration Length of Water Liquid Line Water Harvest Water Inlet Compressor & Sequence of Air Pumps Dump Solenoid Pump Valve (s) Valve Condenser Fan Time Valve Valve Operation Motor Start-Up - Initial or After Auto Shut Off 45 Seconds 1.
Page 121 Quad Evaporator Energized Parts Chart (Continued) Ice Making Refrigeration Length of Water Liquid Line Water Harvest Water Inlet Compressor & Sequence of Air Pumps Dump Solenoid Pump Valve (s) Valve Condenser Fan Time Valve Valve Operation Motor Bin switch 6. Harvest activation Until all bin 7.
Page 122: Safety Timers
Safety Timers The control board has the following non-adjustable safety timers: • The ice machine is locked into the freeze cycle for 6 minutes before a harvest cycle can be initiated. • The maximum freeze time is 60 minutes at which time the control board automatically initiates a harvest sequence (steps 5 &...
Page 123: Troubleshooting
Troubleshooting Safety Limits In addition to standard safety controls, the control board has built in safety limit controls which protect the ice machine from major component failures. Use the following procedures to determine if the control board contains a safety limit indication. 1.
Page 124 Quad Evaporator Machines Only When a safety limit condition causes the ice machine to stop, the harvest light on the control board continually flashes on and off. Use the following procedures to determine which safety limit has stopped the ice machine. 1.
Page 125: Safety Limit Analysis
Eliminate all electrical components and external causes first. If it appears that the refrigeration system is causing the problem, use Manitowoc’s Freeze Cycle Refrigeration System Operational Analysis Table, along with detailed charts, checklists, and other references to determine the cause.
Page 126: Safety Limit#1
• 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 • Defective compressor • TXV starving or flooding (check bulb mounting) •...
Page 127: Safety Limit #2
Ice thickness probe out of adjustment • Ice thickness probe dirty • Bin switch closed/defective • Premature harvest Refrigeration System • Non-Manitowoc components • Improper refrigerant charge • Defective head pressure control valve • Defective harvest valve • TXV flooding (check bulb mounting) •...
Page 128: Safety Limit #3
SAFETY LIMIT #3 Water System • Water supply to machine is being interrupted • Water leaking down the drain during freeze (dump valve) • Water tracking into bin • Uneven water flow over evaporator • Water pump not pumping Electrical System •...
Page 129: Control Board Testing
Control Board Testing All replacement S Model control boards and ice machines with serial numbers larger than 110924847 have a control board that includes a diagnostic test cycle. The control board can be identified by the blue printed circuit board and a push button switch on the bottom left corner labeled “service mode”.
Page 130: Troubleshooting By Symptom
Troubleshooting By Symptom The troubleshooting procedures follow flow charts. There are four symptoms, the symptom that you are experiencing will determine which flow chart to use. The flow chart asks yes and no questions to determine the problem. The flow chart will direct you to a procedure to correct the problem.
Page 131: Symptom #1 Ice Machine Will Not Run
Symptom #1 Ice Machine Will Not Run Ice Machine stops running or has history of shutting down Control board has energized lights? Does Ice Machine run in Clean? Ice Machine starts when Toggle Switch is moved to ICE? Refer to "Ice Machine will not run"...
Page 132 Which light flashed Immediately after Is Water Curtain in place? resetting the toggle switch? Install Water Curtain Refer to Safety Limit #1 Long Freeze Cycle Replace The Water Curtain Is Water Curtain magnet attached? Refer to Safety Limit #2 Long Harvest Cycle Run and Check for Normal Operation Refer to Bin...
Page 133: Diagnosing An Ice Machine Head Section That Will Not Run
DIAGNOSING AN ICE MACHINE HEAD SECTION THAT WILL NOT RUN Warning High (line) voltage is applied to the control board (terminals #55 and #56) at all times. Removing control board fuse or moving the toggle switch to OFF will not remove the power supplied to the control board.
Page 134: Diagnosing A Condensing Unit That Will Not Run
DIAGNOSING A CONDENSING UNIT THAT WILL NOT RUN If the ice machine water pump is not energized, refer to “Diagnosing an Ice Machine Head Section that Will Not Run page 133.” 1. Verify primary voltage is supplied to ice machine condensing unit and the fuse/circuit breaker is closed.
Page 135: Compressor Electrical Diagnostics
COMPRESSOR ELECTRICAL DIAGNOSTICS The compressor does not start or will trip repeatedly on overload. Check Resistance (Ohm) Values NOTE: Compressor windings can have very low ohm values. Use a properly calibrated meter. Perform the resistance test after the compressor cools. The compressor dome should be cool enough to touch (below 120°F/49°C) to assure that the overload is closed and the resistance readings will be accurate.
Page 136 Check Motor Windings to Ground Check continuity between all three terminals and the compressor shell or copper refrigeration line. Scrape metal surface to get good contact. If continuity is present, the compressor windings are grounded and the compressor should be replaced. Compressor Drawing Locked Rotor To determine if the compressor is seized, check the amp draw while the compressor is trying to start.
Page 137 DIAGNOSING CAPACITORS • If the compressor attempts to start, or hums and trips the overload protector, check the starting components before 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.
Page 138: Symptom #2 Low Production, Long Freeze Cycle
Symptom #2 Low Production, Long Freeze Cycle Ice Machine has a Long Freeze Cycle. Ice Formation is Thick Thin Ice Fill on Top or Bottom of Evaporator Low Production How to Use the Freeze Cycle Refrigeration System Operational Analysis Table GENERAL These tables must be used with charts, checklists and other references to eliminate refrigeration components...
Page 139 PROCEDURE Step 1 Complete the “Operation Analysis” column. Read down the left “Operational Analysis” column. Perform all procedures and check all information listed. Each item in this column has supporting reference material to help analyze each step. While analyzing each item separately, you may find an “external problem”...
Page 140: Symptom #2 - Refrigeration System Operational Analysis Tables
SYMPTOM #2 - REFRIGERATION SYSTEM OPERATIONAL ANALYSIS TABLES S QuietQube Models Single Expansion Valve Operational Analysis Published 24 hour ice production________________ Calculated (actual) ice production_______________ Ice Production NOTE: The ice machine is operating properly if the ice fill patterns is normal and ice production is within 10% of charted capacity.
Page 141 S QuietQube Models Single Expansion Valve Operational Analysis Safety Limits Refer to “Analyzing Safety Stops on safety limit: Stops on safety limit: Stops on safety limit: Stops on safety limit: Limits” page 125 to eliminate 1 or 2 1 or 2 1 or 2 all non-refrigeration problems.
Page 142 S QuietQube Models Single Expansion Valve Operational Analysis Suction Line Temperature Suction line temp. at Suction line temp. at Suction line temp. at Suction line temp. at the suction shut-off the suction shut-off the suction shut-off the suction shut-off Attach a temperature probe valve is greater than valve is greater than valve is less than...
Page 143 Twin Expansion Valve – S1470C/S1870C/S2070C/S2170C Operational Analysis Published 24-hour ice production __________ Calculated (actual) 24-hour ice production __________ Ice Production NOTE: The ice machine is operating properly if the ice fill pattern is normal and ice production is within 10% of charted capacity. Installation and Water System All installation and water-related problems must be corrected before proceeding with chart.
Page 144 Twin Expansion Valve – S1470C/S1870C/S2070C/S2170C Operational Analysis Safety Limits Refer to “Analyzing Stops on Stops on Stops on Stops on Safety Limits” page 125 to safety limit: safety limit: safety limit: safety limit: 1 or 2 1 or 2 1 or 2 eliminate all non-refrigeration problems.
Page 145 Twin Expansion Valve – S1470C/S1870C/S2070C/S2170C Operational Analysis No audible No audible No audible Audible refrigerant flow refrigerant flow through refrigerant flow through refrigerant flow through Harvest Valve through left or right left or right valve in left or right valve in left or right valve in valve in Freeze cycle Freeze cycle...
Page 146 Quad Expansion Valve – S3070C Operational Analysis Ice Production Air-Temperature Entering Condenser_____________ Water Temperature Entering Ice Machine_________ Published 24 hour ice production________________ Calculated (actual) ice production_______________ NOTE: The ice machine is operating properly if the ice fill patterns is normal and ice production is within 10% of charted capacity.
Page 147 Quad Expansion Valve – S3070C Operational Analysis Safety Limits Refer to “Analyzing Safety Stops on Safety Limit: Stops on Safety Limit: Stops on Safety Limit: Stops on Safety Limit: 1 or 2 Limits” page 125 to eliminate all non refrigeration problems Freeze Cycle Discharge Pressure If discharge pressure is High or Low refer to freeze cycle high or low discharge pressure problem...
Page 148 Quad Expansion Valve – S3070C Operational Analysis Evaporator Outlet Evaporator outlet temperatures are Temperature Comparison Evaporator outlet Evaporator outlet Evaporator outlet NOT within Attach and insulate temperature temperatures are temperatures are temperatures are 10°F of each other within 10°F of each NOT within within 10°F of each probes between evaporator...
Page 149: Symptom #2 - Freeze Cycle Refrigeration System Operational Analysis Table Procedures
SYMPTOM #2 - FREEZE CYCLE REFRIGERATION SYSTEM OPERATIONAL ANALYSIS TABLE PROCEDURES The following is the procedures for completing each step of the Symptom #2 - Freeze Cycle Refrigeration System Operational Analysis Tables. Each procedure must be performed exactly for the table to work correctly.
Page 150: Ice Production Check
Ice Production Check The amount of ice a machine produces directly relates to the operating water and air temperatures. This means a condensing unit with a 70°F (21.2°C) outdoor ambient temperature and 50°F (10.0°C) water produces more ice than the same model condensing unit with a 90°F (32.2°C) outdoor ambient temperature and 70°F (21.2°C) water.
Page 151 Installation/Visual Inspection Checklist Inadequate Clearances • Check all clearances on sides, back and top. Ice 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 •...
Page 152 Water System Checklist A water-related problem often causes the same symptoms as a refrigeration system component malfunction. Water system problems must be identified and eliminated prior to replacing refrigeration components. Water area (evaporator) is dirty • Clean as needed Water inlet pressure not between 20 and 80 psig (1-5 Bar, 138-552 kPa).
Page 153 Analyzing the ice formation pattern alone cannot diagnose an ice machine malfunction. However, when this analysis is used along with Manitowoc’s Symptom #2 - Refrigeration System Operational Analysis Table, it can help diagnose an ice machine malfunction.
Page 154 ICE FORMATION PATTERN IB MODELS Tubing routing for Ice Beverage evaporators is different. The evaporator outlet is moved lower on the evaporator. • IB600 and IB800 evaporators outlets exit roughly 1/2 way down the evaporator. Extremely Thin at the Evaporator Outlet will first be visible near the middle of the evaporator •...
Page 155 The ice thickness probe must be set to maintain the ice bridge thickness at approximately 1/8 in. If ice forms uniformly across the evaporator surface, but does not reach 1/8 in. in the proper amount of time, this is still considered normal ice fill pattern. 2.
Page 156 Analyzing Discharge Pressure 1. Determine the ice machine operating conditions: Air temp. entering condenser______ Air temp. around ice machine______ Water temp. entering sump trough______ 2. Refer to Cycle Times/24-Hour Ice Production/ Refrigeration Pressure Chart for ice machine being checked. Use the operating conditions determined in step 1 to find the published normal discharge pressures.
Page 157 • 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 only the items listed in the checklists.
Page 158 Refer to “Installation/Visual Inspection Checklist” page 151 Improper 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 •...
Page 159 Analyzing Suction Pressure The suction pressure gradually drops throughout the Freeze cycle. The actual suction pressure (and drop rate) changes as the air and water temperature entering the ice machine changes. These variables also determine the Freeze cycle times. To analyze and identify the proper suction pressure drop throughout the Freeze cycle, compare the published suction pressure to the published Freeze cycle time.
Page 160 • 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 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 •...
Page 162 Harvest Valve The harvest valve is an electrically operated valve that opens when energized, and closes when de- energized. NORMAL OPERATION The valve is de-energized (closed) during the Freeze cycle and energized (open) during the Harvest cycle. The valve is positioned between the receiver and the evaporator and performs two functions: 1.
Page 163 Refer to the Parts Manual on our website (http://www.manitowocice.com/service/ partsmanuals.asp) for proper valve application. If replacement is necessary, use only “original” Manitowoc replacement parts. Part Number 80-1505-3 6/11...
Page 164 Analyzing Freeze Cycle Suction Line Temperature Suction line temperature cannot diagnose an ice machine. However, comparing this temperature during the freeze cycle, along with using Manitowoc’s Symptom #2 - Refrigeration System Operational Analysis Table, can help diagnose an ice machine malfunction.
Page 165 Final Analysis The column with the highest number of check marks identifies the refrigeration problem. COLUMN 1 - HARVEST VALVE LEAKING A leaking harvest valve must be replaced. COLUMN 2 - LOW CHARGE OR TXV STARVING Normally, a starving expansion valve only affects the freeze cycle pressures, not the harvest cycle pressures.
Page 166: Symptom #3 Ice Will Not Harvest
Symptom #3 Ice Will Not Harvest ICE MACHINE WILL NOT HARVEST DIAGNOSTICS Ice release issues fall into two main categories mechanical or refrigeration. The first step in solving an ice release issue is to determine which condition exists. At the end of the harvest cycle place the toggle switch in the OFF position, then remove and inspect the sheet of ice.
Page 167: Harvest Problems
HARVEST PROBLEMS Melted Out Ice Cube Normal Ice Cube Definition of a harvest problem; At the end of a 3.5 minute harvest cycle the slab of ice is still contacting the evaporator. The slab of ice may or may not be removable by hand.
Page 168: Symptom #3 Ice Will Not Harvest, Cubes Are Not Melted Flowchart
Symptom #3 Ice Will Not Harvest, Cubes Are Not Melted Flowchart Ice Machine Will Not Harvest Freeze Cycle is Normal and Ice Cubes Are Not Melted After Harvest Ice Machine Will Not Harvest - Freeze Cycle Is Normal and Ice Cubes Are Not Melted After Harvest Refer to Sequence of Operation Is the Harvest Valve(s) &...
Page 169 Replace Is Head Pressure high & Harvest Suction Pressure low Valve in harvest? Is Head Pressure low & Not a refrigeration problem, No; Harvest PSI Normal Suction Pressure low in harvest? Clean & Inspect Evaporator Feel temperature of Receiver after 30 seconds Feels Warm to Hot into harvest cycle Cold...
Page 170 Cold Feel temperature of Liquid Line Backseat Liquid Line Shut Feels Hot at rear of Head Section Off Valve or Replace Cold Look for Restriction, Feel temperature of Liquid Line Correct Line Set Size, Feels Hot at Condensing Unit & Proper Insulation Cold Refer to Fan Cycling Control Diagnostics...
Page 171 IMPORTANT Feel temperature of Discharge Line Headmaster is not Weigh charge as you are recovering, after 30 seconds into Harvest Cycle in 100% Bypass if incorrect evacuate & recharge, (refer to Harvest Headmaster Diagnostics) if correct then proceed Refrigerant Charge Refrigerant Charge is Correct is Incorrect...
Page 172: Symptom #4 Ice Will Not Harvest - Cubes Are Melted Flowchart
Symptom #4 Ice Will not Harvest - Cubes Are Melted Flowchart Ice Machine Will Not Harvest - Freeze Cycle Is Normal and Ice Cubes Are Melted After Harvest Back of cubes are melted Level Ice Is Ice Machine level? at end of harvest cycle? Machine Refer to Is water flow over the evaporator at...
Page 173 Is the evaporator dirty? (Dry evaporator first then check) Refer to Symptom #2 Refer to Cleaning Freeze Cycle Operational Procedures Analysis Table...
Page 174 This Page Intentionally Left Blank Part Number 80-1505-3 6/11...
Page 175: Component Check Procedures
Component Check Procedures Electrical Components MAIN FUSE FUNCTION The control board fuse stops ice machine operation if electrical components fail, causing high amp draw. SPECIFICATIONS The main fuse is 250 Volt, 7 amp. Warning High (line) voltage is applied to the control board (terminals #55 and #56) at all times.
Page 176: Bin Switch
BIN SWITCH FUNCTION Movement of the water curtain/ice dampers control bin switch operation. The bin switch has two main functions: 1. Terminating the Harvest cycle and returning the ice machine to the Freeze cycle. This occurs when the bin switch is opened and closed again within 30 seconds during the Harvest cycle.
Page 177 SYMPTOMS Bin Switch Fails Open • The ice machine will not start with the toggle switch in the ice position, but runs normally with the toggle switch in the clean position. Bin Switch Fails Closed • Safety limit 2 is recorded in the control board memory and the harvest cycle continues after the ice opens and closes the water curtain/ice dampers (harvest cycle is 3.5 minutes for single &...
Page 178 Water Curtain/Ice Damper Removal Notes The water curtain must be on (bin switch closed) to start ice making. While a Freeze cycle is in progress, the water curtain can be removed and installed at any time without interfering with the electrical control sequence.
Page 179: Harvest Assist Air Pump
HARVEST ASSIST AIR PUMP FUNCTION The air pump breaks the vacuum between the sheet of ice and the evaporator which results in shorter harvest cycles. SPECIFICATIONS 115 Volt or 230 Volt - matches the ice machine voltage. CHECK PROCEDURE 1. Verify when the air pump should be running in the sequence of operation.
Page 180: Ice/Off/Clean Toggle Switch
ICE/OFF/CLEAN TOGGLE SWITCH FUNCTION The switch is used to place the ice machine in ICE, OFF or CLEAN mode of operation. SPECIFICATIONS Single-pole, double-throw switch. The switch is connected into a varying low D.C. voltage circuit. CHECK PROCEDURE NOTE: Because of a wide variation in D.C. voltage, it is not recommended that a voltmeter be used to check toggle switch operation.
Page 181 IB Model Ice Machines Before Serial Number 050400000 FUNCTION The switch is used to place the ice machine in ICE, OFF or CLEAN mode of operation. SPECIFICATIONS Double-pole, double-throw switch. The switch is connected into a varying low D.C. voltage circuit. CHECK PROCEDURE NOTE: Because of a wide variation in D.C.
Page 182: Ice Thickness Probe (Harvest Initiation)
ICE THICKNESS PROBE (HARVEST INITIATION) HOW THE PROBE WORKS Manitowoc’s electronic sensing circuit does not rely on refrigerant pressure, evaporator temperature, water levels or timers to produce consistent ice formation. As ice forms on the evaporator, water (not ice) contacts the ice thickness probe. After the water completes this circuit across the probe continuously for 10 seconds, a Harvest cycle is initiated.
Page 183 MAXIMUM FREEZE TIME The control system includes a built-in safety which will automatically cycle the ice machine into harvest after 60 minutes in the freeze cycle. ICE THICKNESS CHECK The ice thickness probe is factory-set to maintain the ice bridge thickness at 1/8 in. (.32 cm). NOTE: Make sure the water curtain is in place when performing this check.
Page 184 Cleaning the Ice Thickness Probe Clean the ice thickness probe using the following procedure. 1. Mix a solution of Manitowoc ice machine cleaner and water (2 ounces of cleaner to 16 ounces of water) in a container. 2. Soak ice thickness probe in container of cleaner/...
Page 185 Diagnosing Ice Thickness Control Circuitry PROBLEM: ICE MACHINE DOES NOT CYCLE INTO HARVEST WHEN WATER CONTACTS THE ICE THICKNESS CONTROL PROBE Step 1 Bypass the freeze time lock-in feature by moving the ICE/OFF/CLEAN switch to OFF and back to ICE. Step 2 Wait until water starts to flow over the evaporator (freeze cycle).
Page 186 PROBLEM: ICE MACHINE CYCLES INTO HARVEST BEFORE WATER CONTACT WITH THE ICE THICKNESS PROBE Step 1 Bypass the freeze time lock-in feature by moving the ICE/OFF/CLEAN switch to OFF and back to ICE. Step 2 Disconnect the ice thickness probe from the control board Step 3 Wait until water starts to flow over the evaporator, then monitor the ice probe light:...
Page 187: Water Level Control Circuitry
WATER LEVEL CONTROL CIRCUITRY The water level probe circuit can be monitored by watching the water level light. The water level light is on when water contacts the probe, and off when no water is in contact with the probe. The water level light functions any time power is applied to the ice machine, regardless of toggle switch position.
Page 188 FREEZE CYCLE CIRCUITRY Manitowoc’s electronic sensing circuit does not rely on float switches or timers to maintain consistent water level control. During the Freeze cycle, the water inlet valve energizes and de-energizes in conjunction with the water level probe located in the water trough.
Page 189 Diagnosing Water Level Control Circuitry PROBLEM: WATER TROUGH OVERFILLING DURING THE FREEZE CYCLE Step 1 Start a new Freeze sequence by moving the ICE/OFF/CLEAN toggle switch to OFF and then back to ICE.(if water flows with the switch off, check the water inlet valve).
Page 190 WATER TROUGH OVERFILLING CONTINUED Step 3. Jumper Wire Connected from Control Board Terminal to Ground Is Water The Water Flowing Water Inlet Valve into the Cause Level Solenoid Water Light Is: Coil Is: Trough? The water level probe is causing the problem.
Page 191 Problem: Water Will Not Run into the Sump Trough During the Freeze Cycle Step 1 Verify water is supplied to the ice machine. Start a new Freeze sequence by moving the ICE/OFF/ CLEAN toggle switch to OFF, then back to ICE. Step 2 Wait until the freeze cycle starts (approximately 45 seconds, the freeze cycle starts...
Page 192 Step 3 Disconnect the water level probe from the water level probe terminal on the control board. Important For the test to work properly you must wait until the Freeze cycle starts, prior to disconnecting the water level probe. If you restart the test, you must reconnect the water level probe, restart the ice machine (step 1), and then disconnect the water level probe after the compressor starts.
Page 193: Electronic Bin Thermostat Control
ELECTRONIC BIN THERMOSTAT CONTROL The temperature control opens the bin switch circuit when ice contacts the sensor. When ice no longer contacts the sensor, the circuit closes and the ice machine starts. SPECIFICATIONS Setpoint Range: -30 to 212°F (-34 - 100°C) CONTROL SETTINGS Verify control is set properly before proceeding.
Page 194 KEYPAD JUMPER LOCATION RED LEAD SENSOR PROBE BLACK LEAD SENSOR PROBE MATCH BIN SWITCH WIRING WIRE TO ICE (RED) MACHINE VOLTAGE 240V COM 115V BIN SWITCH WIRE (WHITE) Inside of Bin Thermostat Control P4 Jumper The P4 jumper labeled Jump 1 is used to set the control for heating or cooling mode.
Page 195 SETTING CONTROL SETPOINT VALUE To view and adjust setpoint, follow these steps: 1. Press MENU until the display flashes SP. 2. Press MENU again to display the existing setpoint value. 3. Press Up or Down (arrows) to change the setpoint value.
Page 196 CHECK PROCEDURE Warning Line voltage is present inside control. Contact with line voltage can cause serious injury or death. If the control system does not function properly, verify that the control is wired and set up properly. If the problem persists use the following procedures to determine the cause of the problem.
Page 197 NOTE: Perform Steps 1 and 2 before performing this step. A. Disconnect the load from the output relay terminals. B. Reconnect the sensor leads and supply power to the control. C. Replace the cover. D. Check the control settings for proper values. E.
Page 198 This Page Intentionally Left Blank Part Number 80-1505-3 6/11...
Page 199: Compressor Electrical Diagnostics
COMPRESSOR ELECTRICAL DIAGNOSTICS The compressor does not start or will trip repeatedly on overload. Check Resistance (Ohm) Values NOTE: Compressor windings can have very low ohm values. Use a properly calibrated meter. Perform the resistance test after the compressor cools. The compressor dome should be cool enough to touch (below 120°F/49°C) to assure that the overload is closed and the resistance readings will be accurate.
Page 200 CHECK MOTOR WINDINGS TO GROUND Check continuity between all three terminals and the compressor shell or copper refrigeration line. Scrape metal surface to get good contact. If continuity is present, the compressor windings are grounded and the compressor should be replaced. COMPRESSOR DRAWING LOCKED ROTOR To determine if the compressor is seized, check the amp draw while the compressor is trying to start.
Page 201: Diagnosing Start Components
DIAGNOSING START COMPONENTS If the compressor attempts to start, or hums and trips the overload protector, check the start components before replacing the compressor. Capacitor 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.
Page 202 PTCR The PTCR allows current to flow through the start winding at compressor startup. Current flow heats the ceramic discs in the PTCR. The electrical resistance increases with temperature and stops all except a trickle of current flow through the start winding. The small flow of current keeps the PTCR hot (260°F/ 127°C) and the start winding out of the circuit.
Page 203 PTCR Operation Check 1. Visually inspect the PTCR. Check for signs of physical damage. NOTE: The PTCR case temperature 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.
Page 204: Refrigeration Components
Refrigeration Components REFRIGERANT CHARGE VERIFICATION QuietQube remote ice machines require the correct amount of refrigerant (name plate charge) to operate correctly at all ambient conditions. An ice machine with an overcharge or undercharge of refrigerant may function properly at higher ambient temperatures and fails at lower ambient temperatures.
Page 205 Undercharge Symptoms • Safety limit #1 or Safety limit #2 in control board memory. • Harvest cycle suction pressure is low. • Harvest cycle discharge pressure is low. • Liquid line entering receiver feels warm to hot in the freeze cycle. Overcharge Symptoms •...
Page 206: Suction Accumulator Operation
SUCTION ACCUMULATOR OPERATION Liquid refrigerant collects in the suction accumulator during the harvest cycle and is removed during the freeze cycle. The liquid refrigerant is returned to the compressor through a screen and orifice in the suction accumulator J tube. Passing the liquid through the orifice causes a pressure drop;...
Page 207: Headmaster Control Valve
® control valves with special settings. Replace defective headmaster control valves only with “original” Manitowoc replacement parts. Freeze Cycle Operation During low ambient conditions, it is normal for the head pressure control valve to hunt (head pressure may fluctuate up and down) on CVD condensing units.
Page 208 Harvest Cycle Operation During the Harvest cycle, the harvest valve opens and allows refrigerant from the top of the receiver tank to enter the evaporator. The refrigerants change of state (from vapor to liquid) releases the heat necessary for the Harvest cycle. Opening the harvest valve causes a drop in discharge pressure.
Page 209 Diagnosing Air-Cooled Condensing Units FREEZE CYCLE 1. Determine the air temperature entering the remote condenser. 2. Determine if the head pressure is high or low in relationship to the outside temperature. (Refer to the proper “Operational Pressure Charts page 239.”) If the air temperature is below 70°F (21.1°C), the head pressure control will modulate to maintain the correct liquid line temperature and head pressure.
Page 210 HARVEST CYCLE The headmaster 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 (completely bypass the condenser) in the harvest cycle are: •...
Page 211 Step 3 Details Grasp Here with Hands to Compare Temperatures LIQUID LINE FROM CONDENSER HARVEST CYCLE HEADMASTER CONTROL VALVE FAILURE LIST Temperature of the compressor discharge line and liquid line to the ice machine receiver feel the same 30 seconds into the harvest cycle. •...
Page 212: Headmaster Valve Water-Cooled Condensing Unit - Cvd1476
HEADMASTER VALVE WATER-COOLED CONDENSING UNIT - CVD1476 Freeze Cycle The water regulating valve setting is higher than the head pressure control valve set point. All refrigerant is directed through the condenser and the water regulating valve maintains the correct head pressure. Harvest Cycle The headmaster control valve diverts the compressor discharge gas to the ice machine receiver in the...
Page 213 CVD1476 Headmaster Control Valve Failure List Condition Probable Cause Corrective Measure Discharge Pressure - Low Ice Machine Low on Charge Low on Charge Verification Liquid Line Temperature - Hot Freeze Cycle Discharge Pressure - High Water regulating valve maintains freeze cycle Adjust or replace water discharge pressure regulating valve...
Page 214: Water Regulating Valve Cvd1476
WATER REGULATING VALVE CVD1476 FUNCTION The water regulating valve maintains the freeze cycle discharge pressure. The valve setting for the CVD1486 condensing unit is 240 psig. CHECK PROCEDURE 1. Determine if the head pressure is high or low (refer to “Operational Pressure Charts” beginning on page 239.
Page 215: Fan Cycle Control
FAN CYCLE CONTROL FUNCTION Energizes and de-energizes the condenser fan motor. The condenser fan motor typically will be on in the Freeze cycle and off in the Harvest cycle. The fan cycle control closes on an increase, and opens on a decrease in discharge pressure. Specifications Cut-In (Close) Cut-Out (Open)
Page 216: High Pressure Cutout (Hpco) Control
HIGH PRESSURE CUTOUT (HPCO) CONTROL FUNCTION Stops the ice machine if subjected to excessive high- side pressure. The HPCO control is normally closed, and opens on a rise in discharge pressure. Specifications Cut-Out Cut-In 450 psig ±10 Automatic Reset (Must be below 300 psig to reset) CHECK PROCEDURE 1.
Page 217: Low Pressure Cutout (Lpco) Control
LOW PRESSURE CUTOUT (LPCO) CONTROL FUNCTION Energizes and de-energizes the contactor coil when suction pressure rises above or falls below setpoint. The LPCO control is closed at pressures above setpoint and opens at pressures below setpoint. Specifications Cut-Out Cut-In Original 7 psig ±3 22 psig ±3 Current Production &...
Page 218: Refrigerant Recovery/Evacuation
Do not purge refrigerant to the atmosphere. Capture refrigerant using recovery equipment. Follow the manufacturer’s recommendations. Important Manitowoc Ice assumes no responsibility for the use of contaminated refrigerant. Damage resulting from the use of contaminated refrigerant is the sole responsibility of the servicing company.
Page 219: Connections
CONNECTIONS Manifold gauge sets must utilize low loss fittings to comply with U.S. Government rules and regulations. All CVD condensing units are now manufactured with a check valve in the compressor discharge line. The check valve requires an additional connection on the condensing unit during evacuation and recovery procedures.
Page 220 Warning The receiver access valve (located in the ice machine head section) must 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.
Page 221: Recovery/Evacuation Procedures
RECOVERY/EVACUATION PROCEDURES 1. Place the ICE/OFF/CLEAN toggle switch in the OFF position and disconnect all power to the ice machine and condensing unit. 2. Install manifold gauges, charging scale, and recovery unit or two-stage vacuum pump. 3. Open the receiver service valve halfway. 4.
Page 222: Charging Procedures
CHARGING PROCEDURES 1. Verify the ICE/OFF/CLEAN toggle switch is in the OFF position. 2. Close the vacuum pump valve and the low side manifold gauge valve. 3. Open the refrigerant cylinder and add the proper refrigerant charge (shown on nameplate) into the system high side (receiver service valve and discharge line shut-off valve).
Page 223: System Contamination Cleanup
This section describes the basic requirements for restoring contaminated systems to reliable service. Important Manitowoc Ice assumes no responsibility for the use of contaminated refrigerant. Damage resulting from the use of contaminated refrigerant is the sole responsibility of the servicing company.
Page 224 Contamination Cleanup Chart Required Cleanup Symptoms/Findings Procedure No symptoms or suspicion of Normal contamination evacuation/recharging procedure Moisture/Air Contamination symptoms Refrigeration system open to atmosphere for longer than Mild contamination 15 minutes cleanup procedure Refrigeration test kit and/or acid oil test shows contamination No burnout deposits in open compressor lines...
Page 225: Cleanup Procedure
CLEANUP PROCEDURE Mild System Contamination 1. Replace any failed components. 2. If the compressor is good, change the oil. 3. Replace the liquid line drier and suction filter. NOTE: If the contamination is from moisture, use heat lamps during evacuation. Position them at the compressor, condenser and evaporator prior to evacuation.
Page 226 Severe System Contamination 1. Remove the refrigerant charge. 2. Remove the compressor. 3. Cut copper tubing at the outlet of the harvest valve. If burnout deposits are found inside the tubing, replace the harvest valve, TXV and head pressure control valve. 4.
Page 227 11. Charge the system with the proper refrigerant to the nameplate charge. 12. Operate the ice machine for one hour. Then, check the pressure drop across the suction line filter-drier. A. If the pressure drop is less than 2 psig, the filter-drier should be adequate for complete cleanup.
Page 228 Replacing Pressure Controls Without Removing Refrigerant Charge This procedure reduces repair time and cost. Use it when any of the following components require replacement, and the refrigeration system is operational and leak-free. • Fan cycle control • High pressure cut-out control •...
Page 229 SV1406 USING PINCH-OFF TOOL Part Number 80-1505-3 6/11...
Page 230: Refrigerant Reuse Policy
Important Manitowoc Ice assumes no responsibility for use of contaminated refrigerant. Damage resulting from the use of contaminated, recovered, or recycled refrigerant is the sole responsibility of the servicing company.
Page 231 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 conversion procedures. Part Number 80-1505-3 6/11...
Page 232 Part Number 80-1505-3 6/11...
Page 233: Component Specifications
Component Specifications MAIN FUSE The main control board fuse is 250 Volt, 7 amp. BIN SWITCH The bin switch is a magnetically operated reed switch. The magnet is attached to the lower right corner of the water curtain. The switch is attached to the right bulkhead wall.
Page 234: Fan Cycle Control
FAN CYCLE CONTROL 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 HIGH PRESSURE CUTOUT (HPCO) CONTROL Specifications Cut-Out Cut-In 450 psig ±10 (3103 kPa ±69) Automatic Reset 31 bar ±.69 (Must be below 300 psig...
Page 235: Filter-Driers
Liquid Line Filter-Drier The filter-driers used on Manitowoc ice machines are manufactured to Manitowoc specifications. The difference between a Manitowoc drier and an off- the-shelf drier is in filtration. A Manitowoc drier has dirt-retaining filtration, with filters on both the inlet and outlet ends.
Page 236 Suction Line Filter The suction filter traps particulate only and does not contain a desiccant. The filter needs replacement when: 1. The pressure drop across the drier exceeds 2 psig. 2. The total system refrigerant charge has escaped and the refrigeration system has been exposed to the atmosphere.
Page 237: Total System Refrigerant Charge
TOTAL SYSTEM REFRIGERANT CHARGE Condensing Refrigerant Line Set Model Unit Charge Length S0600C/S0680C CVD0675/ 11 lbs. 0-100 ft. IB0600C/IB0680C CVD0685 5 kg. 0-30 M 11 lbs. 0-50 ft. 5 kg. 0-15 M S0850C CVD0885 12 lbs. 51-100 ft. 5.44 kg 15-30 M 12 lbs.
Page 238 This Page Intentionally Left Blank Part Number 80-1505-3 6/11...
Page 239: Cycle Times/24-Hour Ice Production/Refrigerant Pressure
Charts Cycle Times/24-Hour Ice Production/ Refrigerant Pressure These charts are used as guidelines to verify correct ice machine operation. Accurate collection of data is essential to obtain the correct diagnosis. • Ice production checks that are within 10% of the chart are considered normal.
Page 240: S0600C/Cvd0675 Series Remote Air Cooled
S0600C/CVD0675 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 -20 to 70/ 7.6-9.0 8.4-9.9 9.1-10.7...
Page 241: Sd0682C/Cvd0685 Series Remote Air Cooled
SD0682C/CVD0685 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 -20 to 70/ 8.7-10.0 9.5-11.0 10.9-12.5...
Page 242: Sy0684C/Cvd0685 Series Remote Air Cooled
SY0684C/CVD0685 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 -20 to 70/ 8.2-9.5 9.0-10.4 9.7-11.2...
Page 243: Ib0600C/Cvd675 Series Remote Air Cooled
IB0600C/CVD675 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 -20 to 70/ 7.8-9.3 8.8-10.4 9.5-11.2...
Page 244: Ib0682Dc/Cvd685 Series Remote Air Cooled
IB0682DC/CVD685 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 -20 to 70/ 9.2-10.6 10.1-11.6 11.1-12.8...
Page 245: Ib0684Yc/Cvd685 Series Remote Air Cooled
IB0684YC/CVD685 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 -20 to 70/ 9.2-10.6 10.1-11.6 11.1-12.8...
Page 246: Sd0872C/Sy0874C/Cvd0885 Series Remote Air Cooled Machines Before Serial Number 110682385
SD0872C/SY0874C/CVD0885 SERIES REMOTE AIR COOLED MACHINES BEFORE SERIAL NUMBER 110682385 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 247: Sd0872C/Cvd0885 Series Remote Air Cooled Machines After Serial Number 110682385
SD0872C/CVD0885 SERIES REMOTE AIR COOLED MACHINES AFTER SERIAL NUMBER 110682385 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 248: Sy0874C/Cvd0885 Series Remote Air Cooled Machines After Serial Number 110682385
SY0874C/CVD0885 SERIES REMOTE AIR COOLED MACHINES AFTER SERIAL NUMBER 110682385 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 249: Ib0822Dc/Ib0824Yc/Cvd885 Series Remote Air Cooled Machines Before Serial Number 110682385
IB0822DC/IB0824YC/CVD885 SERIES REMOTE AIR COOLED MACHINES BEFORE SERIAL NUMBER 110682385 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 250: Ib0822Dc/Cvd885 Series Remote Air Cooled Machines After Serial Number 110682385
IB0822DC/CVD885 SERIES REMOTE AIR COOLED MACHINES AFTER SERIAL NUMBER 110682385 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 251: Ib0824Yc/Cvd885 Series Remote Air Cooled Machines After Serial Number 110682385
IB0824YC/CVD885 SERIES REMOTE AIR COOLED MACHINES AFTER SERIAL NUMBER 110682385 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 252: Sd1072C/Sy1074C/Cvd1085 Series Remote Air Cooled Machines Before Serial Number 110697654
SD1072C/SY1074C/CVD1085 SERIES REMOTE AIR COOLED MACHINES BEFORE SERIAL NUMBER 110697654 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 253: Sd1072C/Cvd1085 Series Remote Air Cooled Machines After Serial Number 110697654
SD1072C/CVD1085 SERIES REMOTE AIR COOLED MACHINES AFTER SERIAL NUMBER 110697654 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 254: Sy1074C/Cvd1085 Series Remote Air Cooled Machines After Serial Number 110697654
SY1074C/CVD1085 SERIES REMOTE AIR COOLED MACHINES AFTER SERIAL NUMBER 110697654 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 255: Ib1022Dc/Ib1024Yc/Cvd1075/Cvd1085/Cvd1285 Series Remote Air Cooled Machines Before Serial Number 110697294
IB1022DC/IB1024YC/CVD1075/CVD1085/CVD1285 SERIES REMOTE AIR COOLED MACHINES BEFORE SERIAL NUMBER 110697294 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 256: Ib1022Dc/Cvd1185 Series Remote Air Cooled Machines After Serial Number 110697294
IB1022DC/CVD1185 SERIES REMOTE AIR COOLED MACHINES AFTER SERIAL NUMBER 110697294 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 257: Ib1024Yc/Cvd1185 Series Remote Air Cooled Machines After Serial Number 110697294
IB1024YC/CVD1185 SERIES REMOTE AIR COOLED MACHINES AFTER SERIAL NUMBER 110697294 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 258: Sd1272C/Sy1274C/Cvd1285 Series Remote Air Cooled Machines Before Serial Number 110706336
SD1272C/SY1274C/CVD1285 SERIES REMOTE AIR COOLED MACHINES BEFORE SERIAL NUMBER 110706336 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 259: Sd1272C/Cvd1285 Series Remote Air Cooled Machines After Serial Number 110706336
SD1272C/CVD1285 SERIES REMOTE AIR COOLED MACHINES AFTER SERIAL NUMBER 110706336 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 260: Sy1274C/Cvd1285 Series Remote Air Cooled Machines After Serial Number 110706336
SY1274C/CVD1285 SERIES REMOTE AIR COOLED MACHINES AFTER SERIAL NUMBER 110706336 NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21...
Page 261: S1470C/Cvd1485 Series Remote Air Cooled
S1470C/CVD1485 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20 to 70/ 10.8-12.9 11.8-14.0 12.9-15.3...
Page 262: S1470C/Cvd1486 Remote Water Cooled
S1470C/CVD1486 REMOTE WATER COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C 35 to 70/ 11.3-13.4 12.5-14.8 13.9-16.5...
Page 263: Sd1872C/Cvd1885 Series Remote Air Cooled
SD1872C/CVD1885 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20 to 70/ 11.1-13.1 12.0-13.1 13.1-14.3...
Page 264: Sy1874C/Cvd1885 Series Remote Air Cooled
SY1874C/CVD1885 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20 to 70/ 10.7-11.7 11.7-12.8 12.8-14.0...
Page 265: Sd2072C/Cvd2075 Series Remote Air Cooled
SD2072C/CVD2075 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20 to 70/ 9.2-10.1 10.2-11.2 11.4-12.4...
Page 266: Sy2074C/Cvd2075 Series Remote Air Cooled
SY2074C/CVD2075 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20 to 70/ 8.8-9.6 9.7-10.6 10.8-11.8...
Page 267: Sd2172C/Cvd2085 Series Remote Air Cooled
SD2172C/CVD2085 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20 to 70/ 10.2-11.2 11.2-12.2 12.3-13.4...
Page 268: Sy2174C/Cvd2085 Series Remote Air Cooled
SY2174C/CVD2085 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20 to 70/ 9.7-10.6 10.6-11.5 11.5-12.6...
Page 269: Sd3072C/Cvd3085 Series Remote Air Cooled
SD3072C/CVD3085 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20 to 70/ 10.9-12.4 11.8-13.4 12.6-14.3...
Page 270: Sy3074C/Cvd3085 Series Remote Air Cooled
SY3074C/CVD3085 SERIES REMOTE AIR COOLED NOTE: These characteristics may vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time 50/10 70/21 90/32 °F/°C -20 to 70/ 10.6-12.1 11.2-12.8 12.6-14.3...
Page 271: Wiring Diagrams
Diagrams Wiring Diagrams The following pages contain electrical wiring diagrams. Be sure you are referring to the correct diagram for the ice machine you are servicing. Warning Always disconnect power before working on electrical circuitry. WIRING DIAGRAM LEGEND The following symbols are used on all of the wiring diagrams: Internal Compressor Overload (Some models have external...
Page 272: S600C/S850C/1000C/S1200C
S600C/S850C/1000C/S1200C Ice Machine Head Section See Serial Plate for Voltage Water Ground Valve (20) (21) (61) (22) Harvest Valve (60) (77) (80) Dump Valve (81) (75) (76) Water Pump (57) (98) (99) Trans. Fuse 7A. (58) (82) (83) (55) Liquid Line Clean Solenoid Comp...
Page 273: S600C/S680C/S850C/1000C/S1200C
S600C/S680C/S850C/1000C/S1200C Ice Machine Head Section Air Pump wired with the Harvest Valve See Serial Plate for Voltage Water Valve Ground (20) (21) (22) Air Comp (61) (27) Harvest (28) Valve (80) (77) (60) Dump Valve (76) (99) (57) Water Pump (98) Trans.
Page 274: S1470C/S1870C/S2070C/S2170C
S1470C/S1870C/S2070C/S2170C Part Number 80-1505-3 6/11...
Page 275: S3070C 115/60/1
S3070C 115/60/1 Part Number 80-1505-3 6/11...
Page 276: S3070C 230V/50Hz/1Ph
S3070C 230V/50HZ/1PH Part Number 80-1505-3 6/11...
Page 277: Ib0600C/Ib0800C/Ib1000C With S Control Board And Electronic Bin Thermostat
IB0600C/IB0800C/IB1000C WITH S CONTROL BOARD AND ELECTRONIC BIN THERMOSTAT Ice Machine Head Section Part Number 80-1505-3 6/11...
Page 278: Ib0600C/Ib0680C/Ib0800C/Ib1000C With Air Assist/S Control Board/Electronic Bin Thermostat
IB0600C/IB0680C/IB0800C/IB1000C WITH AIR ASSIST/S CONTROL BOARD/ ELECTRONIC BIN THERMOSTAT Ice Machine Head Section Part Number 80-1505-3 6/11...
Page 279: Cvd675/Cvd685/Cvd885/Cvd1075
CVD675/CVD685/CVD885/CVD1075/CVD1085/ CVD1185/CVD1285/CVD1485/CVD1486/CVD1885/ CVD2075/CVD3085 - 1 PHASE Part Number 80-1505-3 6/11...
Page 280: Cvd2085 Without Ptcr- 1 Phase
CVD2085 WITHOUT PTCR- 1 PHASE Part Number 80-1505-3 6/11...
Page 281: Cvd2085 With Ptcr- 1 Phase
CVD2085 WITH PTCR- 1 PHASE Part Number 80-1505-3 6/11...
Page 282: Cvd675/Cvd685/Cvd885/Cvd1075/Cvd1085/ Cvd1185/Cvd1285/Cvd1485/Cvd1486/Cvd1885/ Cvd2075/Cvd2085/Cvd3085 - 3 Phase
CVD675/CVD685/CVD885/CVD1075/CVD1085/ CVD1185/CVD1285/CVD1485/CVD1486/CVD1885/ CVD2075/CVD2085/CVD3085 - 3 PHASE Part Number 80-1505-3 6/11...
Page 283: Cvd3085 380V/50Hz/3Ph
CVD3085 380V/50HZ/3PH Part Number 80-1505-3 6/11...
Page 284: Electronic Control Board
Electronic Control Board SINGLE AND TWIN EVAPORATOR MODELS Without Test Button N 115V L2 208-230V PRIMARY POWER SUPPLY AC LINE VOLTAGE (56) ELECTRICAL PLUG (55) AIR COMPRESSOR (NOT USED ON MAIN FUSE ALL MODELS) (7A) CLEAN LIGHT (YELLOW) WATER PURGE ADJUSTMENT LEFT BIN LIGHT (GREEN) RIGHT BIN LIGHT (GREEN)
Page 285 Single and Twin Evaporator With Test Button N 115V L2 208-230V PRIMARY POWER SUPPLY AC LINE VOLTAGE (56) ELECTRICAL PLUG (55) AIR COMPRESSOR (NOT USED ON MAIN FUSE ALL MODELS) (7A) CLEAN LIGHT (YELLOW) WATER PURGE ADJUSTMENT LEFT BIN LIGHT (GREEN) RIGHT BIN LIGHT (GREEN) REMOTE BIN LIGHT (GREEN) WATER PROBE LIGHT (GREEN)
Page 286: Quad Evaporator Models
QUAD EVAPORATOR MODELS AC LINE VOLTAGE PLUG FUSE 7A HARVEST VALVES CLEAN (YELLOW) HARVEST (RED) WATER LEVEL (GREEN) WATER SOLENOID (RED) LIQUID SOLENOID (RED) DUMP VALVE (RED) ICE PROBE WATER PUMP (RED) CURTAIN SWITCH 4 (GREEN) WATER LEVEL PROBE HARVEST VALVE 4 (RED) CURTAIN SWITCH 3 (GREEN) HARVEST VALVE 3 (RED) CURTAIN SWITCH 2 (GREEN)
Page 287: Refrigeration Tubing Schematics
Refrigeration Tubing Schematics S600C/S680C/S850C/S1000C/S1200C Without Check Valve Condensing Unit SUCTION COMPRESSOR LINE FILTER CONDENSER ACCUMULATOR HEAD PRESSURE CONTROL VALVE S TRAP REQUIRED 21’ OR GREATER RISE LIQUID LINE SUCTION SHUT-OFF SHUT-OFF VALVE VALVE Ice Machine Head Section EVAPORATOR HEAT EXCHANGER LLSV HARVEST VALVE DRIER...
Page 288: S600C/S680C/S850C/S1000C/S1200C
S600C/S680C/S850C/S1000C/S1200C With Check Valve Condensing Unit SUCTION COMPRESSOR ACCESS VALVE LINE FILTER CHECK VALVE CONDENSER ACCUMULATOR HEAD PRESSURE CONTROL VALVE S TRAP REQUIRED 21’ OR GREATER RISE LIQUID LINE SUCTION SHUT-OFF SHUT-OFF VALVE VALVE Ice Machine Head Section EVAPORATOR HEAT EXCHANGER LLSV HARVEST VALVE DRIER...
Page 289: Ice Beverage Ib0600C/Ib0680C/Ib0800C/ Ib1000C
ICE BEVERAGE IB0600C/IB0680C/IB0800C/ IB1000C Without Check Valve Suction Filter Condenser Accumulator Head Pressure Control Valve S Trap Required 21’ or Greater Rise Liquid Line Shut-Off Valve Ice Machine Head Section Suction Line Shut-Off Valve Heat Exchanger Evaporator Liquid Line Harvest Solenoid Valve Valve...
Page 290: Ice Beverage Ib0600C/Ib0680C/Ib0800C/ Ib1000C
ICE BEVERAGE IB0600C/IB0680C/IB0800C/ IB1000C With Check Valve Access Valve Suction Filter Check Valve Condenser Accumulator Head Pressure Control Valve S Trap Required 21’ or Greater Rise Liquid Line Ice Machine Head Section Shut-Off Valve Suction Line Shut-Off Valve Heat Exchanger Evaporator Liquid Line...
Page 291: S1470C/S1870C/S2070C/S2170C
S1470C/S1870C/S2070C/S2170C SUCTION COMPRESSOR FILTER CONDENSER ACCUMULATOR HEAD PRESSURE CONTROL VALVE S Trap Required 21’ or Greater Rise SUCTION LIQUID LINE SHUT-OFF SHUT-OFF VALVE VALVE HEAT EXCHANGER EVAPORATOR EVAPORATOR LLSV HARVEST HARVEST VALVE VALVE DRIER CHECK VALVE RECEIVER SERVICE VALVE RECEIVER Part Number 80-1505-3 6/11...
Page 292: S1470C/S1870C/S2070C/S2170C
S1470C/S1870C/S2070C/S2170C Without Check Valve SUCTION COMPRESSOR FILTER CONDENSER ACCUMULATOR HEAD PRESSURE CONTROL VALVE S Trap Required 21’ or Greater Rise SUCTION LIQUID LINE SHUT-OFF SHUT-OFF VALVE VALVE HEAT EXCHANGER EVAPORATOR EVAPORATOR LLSV HARVEST HARVEST VALVE VALVE DRIER CHECK VALVE RECEIVER SERVICE VALVE RECEIVER Part Number 80-1505-3 6/11...
Page 293: S1476C Water-Cooled Condenser
S1476C Water-Cooled Condenser SUCTION Water CONDENSER FILTER Regulating Valve Condenser ACCUMULATOR Water Outlet COMPRESSOR HEAD PRESSURE CONTROL VALVE S Trap Required 21’ or Greater Rise SUCTION LIQUID LINE SHUT-OFF SHUT-OFF VALVE VALVE HEAT EXCHANGER EVAPORATOR EVAPORATOR LLSV HARVEST HARVEST VALVE VALVE DRIER CHECK VALVE...
Page 294: S3070C Without Check Valve
S3070C Without Check Valve Part Number 80-1505-3 6/11...
Page 295: S3070C With Check Valve
S3070C WITH CHECK VALVE Part Number 80-1505-3 6/11...
Page 296 This Page Intentionally Left Blank Part Number 80-1505-3 6/11...
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...

This manual is also suitable for:

Quietqube sy0674c Quietqube cvd0675 Quietqube sd0682c Quietqube sy0684c Quietqube ib0624yc Quietqube ib0684yc ... Show all

Manitowoc QuietQube SD0672C Technician's Handbook

General Information

Installation

Operational Checks

Electronic bin Thermostat Instructions IB600C/IB680C/IB800C/IB1000C Only Positioning

Component Identification

Maintenance

General

Cleaning / Sanitizing Procedure

Removal from Service/Winterization

Troubleshooting

Safety Limits

Control Board Testing

Troubleshooting by Symptom

Symptom #1 Ice Machine will Not Run

Symptom #2 Low Production, Long Freeze Cycle

Not Melted Flowchart

Symptom #3 Ice will Not Harvest

Component Check Procedures

Electrical Components

Refrigeration Components

Refrigerant Recovery/Evacuation

Component Specifications

Charts

Cycle Times/24-Hour Ice Production/Refrigerant Pressure

Wiring Diagrams

Electronic Control Board

Refrigeration Tubing Schematics

Quick Links

Troubleshooting

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Summary of Contents for Manitowoc QuietQube SD0672C