Manitowoc Ice QF2200, QF2300 Section, Gear Box Removal, Troubleshooting, QF400, QC700/QF800

Page 59

Gear Box Removal

Section 5	Troubleshooting

Gear Box Removal

QF400

The evaporator and motor / gearbox are separate assemblies. Warranty procedures require replacement of the entire evaporator or motor /gearbox assembly. Separate components are not available, and field rebuilding during the warranty period is not allowed.

1.Disconnect power to the ice machine.

2.Remove water level probes, water reservoir cover, float valve, water reservoir, ice chute, and drain tubing (refer to Component Removal).

3.Remove bolts securing foundation coupling to gear motor assembly.

4.Lift evaporator and rest on top of foundation coupling.

5.Disconnect line voltage wiring at motor Molex connector.

6.Remove two screws holding motor speed sensor and remove sensor.

7.Remove coupling, spline hub and keyway from gear motor.

8.Support motor / gearbox assembly and remove 4 bolts securing gear motor assembly to base.

9.Remove gear motor assembly from ice machine.

10.Apply anti-seize compound to the shaft and all bolts to ease future disassembly.

QC700/QF800

The evaporator and motor / gearbox are separate assemblies. Warranty procedures require replacement of the entire evaporator or motor /gearbox assembly. Separate components are not available, and field rebuilding during the warranty period is not allowed.

1.Disconnect power to the ice machine.

2.Remove water level probes, water reservoir cover, float valve, water reservoir, ice chute, and drain tubing (refer to Component Removal).

3.Remove bolts securing foundation coupling to gear motor assembly.

4.Lift evaporator and rest on top of foundation coupling.

5.Disconnect line voltage wiring at motor Molex connector.

6.Remove two screws holding motor speed sensor and remove sensor.

7.Remove bolts securing gear motor assembly mounting bracket to base.

8.Remove gear motor assembly from ice machine.

9.Remove coupling, spline hub, keyway, and mounting bracket from gear motor.

10.Apply anti-seize compound to the shaft and all bolts to ease future disassembly.

6

3

SV2046

83

7

SV2011

Part No. 80-1214-3	Revised 8/2003	5-7
	Revised 8/2003

Image 59

Contents Flake / Chiplet Model Ice Machines Flake Models QF0400/QF0800 QF2200/QF2300Chiplet Models QC0700 Service ManualPERSONAL INJURY POTENTIAL Safety NoticesProcedural Notices Read These Before ProceedingManitowoc Cleaner and Sanitizer Table of ContentsSection Installation Instructions AccessoriesPreventative Maintenance Cleaning Procedure Table of Contents continuedSection Maintenance Exterior CleaningSafeGuard Indicator Lights Table of Contents continued SectionSection Troubleshooting Reset Procedure6-46 ICE/OFF/CLEAN Toggle SwitchCompressor Electrical Diagnostics Section Refrigeration SystemTable of Contents continued Revised 8/2003 MANITOWOC CLEANER AND SANITIZER Section General InformationHow to Read a Model Number AccessoriesModel/Serial Number Location General InformationSection Model/Serial Number LocationPARTS Owner Warranty Registration CardWarranty Coverage GENERALTHIS PAGE INTENTIONALLY LEFT BLANK QC700/QF800 AIR COOLED ICE MACHINE Section Installation InstructionsIce Machine Dimensions QF400 AIR COOLED ICE MACHINEInstallation Instructions Location of Remote Condensing Unit Location of Ice MachineIce Machine Head Section Clearance Requirements Ice Machine Heat of RejectionAir Baffle Leveling the Ice Storage BinCondenser Air Baffle QC700/QF800 Air-CooledIce Machines OnlyMINIMUM CIRCUIT AMPACITY Electrical ServiceVOLTAGE FUSE/CIRCUIT BREAKERRemote Condensing Unit Electrical RequirementsFor United Kingdom Only Ice Machine Head Section230/1/50 QF2200 ICE MACHINE HEAD SECTION 115/60/1QF2300 ICE MACHINE HEAD SECTION 115/60/1RFC2085 REMOTE CONDENSING UNIT 208-230/1/60 Remote Electrical Wiring ConnectionsRFC2385 REMOTE CONDENSING UNIT 208-230/1/60 POTABLE WATER INLET LINES Ice Machine Head Section Water Supply and DrainsCooling Tower Applications Water-CooledModels POTABLE WATER SUPPLYWATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS Typical Water Supply Drain Installation2-10 USAGE WITH NON-MANITOWOC CONDENSING UNITS Refrigeration System Installation2-11 QF2200/RFC2085 AND QF2300/RFC2385 ONLYUnit Locations Are Within Guidelines Refrigeration Line Set Installation2-12 Step 1 Verify Ice Machine and Remote CondensingManitowoc S-TrapKit Service Loop2-13 C. SUCTION LINE OIL TRAPS2-14 Step 4 Connecting the line set2-15 Step 7 Leak Check The Refrigeration System Open Receiver Service Valve2-16 Torque Value’sSuction Shut Off Valve Insulation 2-172-18 QF400 Section Ice Machine OperationComponent Identification ICE MACHINE HEAD SECTION QC700/QF800RFC2385 Remote Condensing Unit Ice Machine OperationSection QF2300WATER LEVEL CHECK Operational ChecksGENERAL EXTERIOR CLEANING Interior Cleaning and SanitizingCleaning/Sanitizing Procedure Heavily Scaled Cleaning ProcedureStraighten Bent Condenser Fins CLEANING THE CONDENSERAir-CooledCondenser Self-Contained Air-CooledFilterMANITOWOC’S CLEANING TECHNOLOGY PREVENTATIVE MAINTENANCE CLEANING PROCEDURE QF400 CLEANING/SANITIZING PROCEDURE QC700/QF800/QF2300 CLEANING/SANITIZING PROCEDURE QF400 only 3-10part number 3-11 REMOVAL OF PARTS FOR CLEANING/SANITIZINGWater Reservoir Cover Removal 3-12Water Level Probe Removal QC700/QF800Float Valve Removal 3-13QF2300 Shown Ice Diverter Removal 3-14Water Reservoir Removal Ice Chute Removal 3-15Cabinet Removal 3-16Bin Door Removal Water Dump Valve Dump Valve Disassembly3-17 Pry Open the Water Regulating Valve Removal from Service/Winterization3-18 WATER COOLED CONDENSING UNITINITIAL START-UP1A. Flush Section Ice Machine Sequence of OperationQF400/QC700/QF800 PRIOR TO START-UPRemote Condensing Unit 3. Automatic Shut-Off Ice Machine Sequence of OperationQF2200 Remote Condensing Unit 2. FreezeQF2300 THIS PAGE INTENTIONALLY LEFT BLANK Checklist Section TroubleshootingSAFEGUARD INDICATOR LIGHTS TroubleshootingSafeguard Feature RESET PROCEDURENo Water Checklist TroubleshootingAnalyzing Why SafeGuards May Stop the Ice Machine SAFEGUARD MODES No WaterGear Motor Speed Gear Motor Speed ChecklistTemperature is Too High or Low QF400/QC700/QF800 Temperature Sensor Checklist QF400/QC700/QF800Temperature is Too High or Low QF2200 Only Temperature Sensor Checklist QF2200Gear Box Removal QF2200/QF2300 Evaporator Removal 5-10 Energized Parts Charts Section Electrical SystemElectrical System QF2300 Wiring Diagram Sequence of OperationL1 1B. WATER FILL Freeze Cycle Automatic Shut-Off 3B. DRAIN EVAPORATOR Automatic Shut-Off 6-10 Wiring Diagram Sequence of L1 Operation6-11 6-12 6-13 6-14 6-15 6-16 RFC2085 Initial Start-Up Remote Condensing Unit 6-17Initial Start-Up 6-18RFC2085 Initial Start-Up 6-196-20 RFC2085 Freeze Cycle 6-21QF2200 Automatic Shut-Off 6-22RFC2085 Automatic Shut-Off 6-236-24 8 Minute Lockout 6-256-26 Wiring Diagram Sequence of OperationRFC2385 6-276-28 6-29 6-30 6-31 6-32 6-33 QF2300 Automatic Shut-Off 6-346-35 6-36 Wiring DiagramsWIRING DIAGRAM LEGEND 115V/60Hz/1Ph - 230V/50Hz/1Ph 6-37ICE MACHINE HEAD SECTION QF400 QC700/QF800 115V/60Hz/1Ph - 230V/50Hz/1Ph 6-38115/60/1 - 230/50/1 6-39COMPRESSOR SECTION QC700/QF800 ICE MACHINE HEAD SECTION QF2200 6-40RFC2085 230V/60HZ/1PH - 230/50/1 6-41RFC2085 208-230V/60HZ/3PH 6-42ICE MACHINE HEAD SECTION Diagram Shown During Freeze Cycle6-43 RFC2385 230V/60HZ/1PH - 230/50/1 6-44RFC2385 208-230V/60HZ/3PH 6-456-46 Control BoardCheck Procedure Component Specifications and DiagnosticsICE/OFF/CLEAN TOGGLE SWITCH Function Specifications6-48 Failure Modes 6-49MOTOR SPEED SENSOR Function WATER LEVEL PROBES Function 6-506-51 TEMPERATURE/RESISTANCE CHART 6-52TEMPERATURE SENSOR Function MAIN FUSE Function 6-53CONTROL BOARD RELAYS Function WATER LEVEL CHECK 6-54WATER FLOAT VALVE Function Function 6-55HIGH PRESSURE CONTROL HPCO Function FAN CYCLE CONTROL Function 6-56Check Motor Windings to Ground COMPRESSOR ELECTRICAL DIAGNOSTICS6-57 Check Resistance Ohm ValuesRelay Operation Check 6-58Diagnosing Start Components QF400/QC700/QF800/QF2200/QF2300 Diagnosing An Ice Machine That Will Not RunDiagnosing A Condensing Unit That Will Not Run 6-596-60 SV3082 Section Refrigeration SystemTubing Schematic Condensing Unit Refrigeration SystemQF2200/RFC2085 QF2300/RFC2385 Refrigeration System Diagnostics Ice Production Check BEFORE BEGINNING SERVICEICE PRODUCTION/QUALITY CHECK Quality Check SAFEGUARDS INSTALLATION/VISUAL INSPECTION CHECKLISTWATER SYSTEM CHECKLIST Discharge Pressure Low Checklist ProcedureDischarge Pressure High Checklist ANALYZING SUCTION PRESSURE Suction Pressure High ChecklistSuction Pressure Low Checklist WATER REGULATING VALVE WATER-COOLEDMODELS ONLY EQUALIZATION VALVE QF2300 GeneralNormal Operation AnalysisAir-CooledCondensing Units 7-10HEADMASTER CONTROL VALVE Function FREEZE CYCLE OPERATION Air-CooledIce MachinesOperating Pressures 7-11QF400 SELF-CONTAINEDAIR COOLED 24 Hour Ice ProductionQC700 SELF-CONTAINEDWATER COOLED 7-12QC700 SELF-CONTAINEDAIR COOLED QF800 SELF-CONTAINEDWATER COOLED 7-13QF800 SELF-CONTAINEDAIR COOLED QF2300/RFC2385 REMOTE AIR COOLED 7-14QF2200/RFC2085 REMOTE AIR COOLED Recovery/Evacuation Connections Refrigerant Recovery/Evacuation and RechargingREFRIGERANT RECOVERY/EVACUATION Normal Self-ContainedModel ProceduresConnections Recovery/Evacuation QF2200/QF23007-16 Charging Connections Self-ContainedModel Charging Procedures7-17 7-18 Remote Charging Procedures QF2200/QF2300Determining Severity Of Contamination SYSTEM CONTAMINATION CLEAN-UP General7-19 7-20 Mild System Contamination Cleanup ProcedureSevere System Contamination Cleanup Procedure 7-21 SV1406 Using Pinch-OffTool7-22 Remote Models SUCTION CLEAN-UPFILTER/DRIER QF400/QC700/QF8007-23 FILTER-DRIERS Liquid Line Filter DrierRecycle REFRIGERANT DEFINITIONS RecoverNew Product Specifications 7-24Revised 8/2003 Attend A Manitowoc Factory Service School 1.New Refrigerant 3.Recovered or Recycled Refrigerant7-25 REFRIGERANT RE-USEPOLICY7-26

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