Troubleshooting, Section, 5-10 | Manitowoc Ice QC0700, QF2300

5-10

Troubleshooting	Section 5

QF2200/QF2300

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 and water supply to the ice machine and drain all water from the reservoir and evaporator.

2.Remove reservoir retaining pin, water reservoir, ice chute, and drain tubing (refer to Component Removal).

3.Recover refrigerant and disconnect refrigeration tubing from evaporator.

4.Remove foundation-coupling bolts.

5.Lift evaporator out of foundation coupling and remove from ice machine.

6.Remove spline hub and keyway from evaporator (8 mm hex wrench for coupling set screw).

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

8.After reinstallation of evaporator, torque foundation bolts to 195-205 inch lbs.

REMOVE

FOUNDATIONSV3017

BOLTS

5-10	Revised 8/2003	Part No. 80-1214-3
	Revised 8/2003

Image 62

Manitowoc Ice QC0700, QF0800, QF0400 service manual Troubleshooting, Section, 5-10, QF2200/QF2300

Contents

Service Manual Flake Models QF0400/QF0800 QF2200/QF2300Chiplet Models QC0700 Flake / Chiplet Model Ice Machines Read These Before Proceeding Safety NoticesProcedural Notices PERSONAL INJURY POTENTIAL Accessories Table of ContentsSection Installation Instructions Manitowoc Cleaner and Sanitizer Exterior Cleaning Table of Contents continuedSection Maintenance Preventative Maintenance Cleaning Procedure Reset Procedure Table of Contents continued SectionSection Troubleshooting SafeGuard Indicator Lights Section Refrigeration System ICE/OFF/CLEAN Toggle SwitchCompressor Electrical Diagnostics 6-46 Table of Contents continued Table of Contents continued Accessories Section General InformationHow to Read a Model Number MANITOWOC CLEANER AND SANITIZER Model/Serial Number Location General InformationSection Model/Serial Number Location GENERAL Owner Warranty Registration CardWarranty Coverage PARTS THIS PAGE INTENTIONALLY LEFT BLANK QF400 AIR COOLED ICE MACHINE Section Installation InstructionsIce Machine Dimensions QC700/QF800 AIR COOLED ICE MACHINE Installation Instructions Ice Machine Heat of Rejection Location of Ice MachineIce Machine Head Section Clearance Requirements Location of Remote Condensing Unit QC700/QF800 Air-CooledIce Machines Only Leveling the Ice Storage BinCondenser Air Baffle Air Baffle FUSE/CIRCUIT BREAKER Electrical ServiceVOLTAGE MINIMUM CIRCUIT AMPACITY Ice Machine Head Section Electrical RequirementsFor United Kingdom Only Remote Condensing Unit 115/60/1 QF2200 ICE MACHINE HEAD SECTION 115/60/1QF2300 ICE MACHINE HEAD SECTION 230/1/50 RFC2085 REMOTE CONDENSING UNIT 208-230/1/60 Remote Electrical Wiring ConnectionsRFC2385 REMOTE CONDENSING UNIT 208-230/1/60 POTABLE WATER SUPPLY Ice Machine Head Section Water Supply and DrainsCooling Tower Applications Water-CooledModels POTABLE WATER INLET LINES WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS Typical Water Supply Drain Installation2-10 QF2200/RFC2085 AND QF2300/RFC2385 ONLY Refrigeration System Installation2-11 USAGE WITH NON-MANITOWOC CONDENSING UNITS Step 1 Verify Ice Machine and Remote Condensing Refrigeration Line Set Installation2-12 Unit Locations Are Within Guidelines C. SUCTION LINE OIL TRAPS Service Loop2-13 Manitowoc S-TrapKit Step 4 Connecting the line set 2-14 2-15 Torque Value’s Open Receiver Service Valve2-16 Step 7 Leak Check The Refrigeration System 2-17 Suction Shut Off Valve Insulation 2-18 ICE MACHINE HEAD SECTION QC700/QF800 Section Ice Machine OperationComponent Identification QF400 QF2300 Ice Machine OperationSection RFC2385 Remote Condensing Unit WATER LEVEL CHECK Operational ChecksGENERAL Heavily Scaled Cleaning Procedure Interior Cleaning and SanitizingCleaning/Sanitizing Procedure EXTERIOR CLEANING Self-Contained Air-CooledFilter CLEANING THE CONDENSERAir-CooledCondenser Straighten Bent Condenser Fins MANITOWOC’S CLEANING TECHNOLOGY PREVENTATIVE MAINTENANCE CLEANING PROCEDURE QF400 CLEANING/SANITIZING PROCEDURE QC700/QF800/QF2300 CLEANING/SANITIZING PROCEDURE QF400 only 3-10part number REMOVAL OF PARTS FOR CLEANING/SANITIZING 3-11 QC700/QF800 3-12Water Level Probe Removal Water Reservoir Cover Removal Float Valve Removal 3-13QF2300 Shown Ice Diverter Removal 3-14Water Reservoir Removal 3-15 Ice Chute Removal Cabinet Removal 3-16Bin Door Removal Water Dump Valve Dump Valve Disassembly3-17 WATER COOLED CONDENSING UNIT Removal from Service/Winterization3-18 Pry Open the Water Regulating Valve PRIOR TO START-UP Section Ice Machine Sequence of OperationQF400/QC700/QF800 INITIAL START-UP1A. Flush Remote Condensing Unit 2. Freeze Ice Machine Sequence of OperationQF2200 Remote Condensing Unit 3. Automatic Shut-Off QF2300 THIS PAGE INTENTIONALLY LEFT BLANK Section Troubleshooting Checklist RESET PROCEDURE TroubleshootingSafeguard Feature SAFEGUARD INDICATOR LIGHTS SAFEGUARD MODES No Water TroubleshootingAnalyzing Why SafeGuards May Stop the Ice Machine No Water Checklist Gear Motor Speed Checklist Gear Motor Speed Temperature Sensor Checklist QF400/QC700/QF800 Temperature is Too High or Low QF400/QC700/QF800 Temperature Sensor Checklist QF2200 Temperature is Too High or Low QF2200 Only Gear Box Removal QF2200/QF2300 Evaporator Removal 5-10 Section Electrical System Energized Parts Charts Electrical System Electrical System Wiring Diagram Sequence of OperationL1 1B. WATER FILL Freeze Cycle Automatic Shut-Off 3B. DRAIN EVAPORATOR Automatic Shut-Off Wiring Diagram Sequence of L1 Operation 6-10 6-11 6-12 6-13 6-14 6-15 6-16 6-17 RFC2085 Initial Start-Up Remote Condensing Unit 6-18 Initial Start-Up 6-19 RFC2085 Initial Start-Up 6-20 6-21 RFC2085 Freeze Cycle 6-22 QF2200 Automatic Shut-Off 6-23 RFC2085 Automatic Shut-Off 6-24 6-25 8 Minute Lockout Wiring Diagram Sequence of Operation 6-26 6-27 RFC2385 6-28 6-29 6-30 6-31 6-32 6-33 6-34 QF2300 Automatic Shut-Off 6-35 6-36 Wiring DiagramsWIRING DIAGRAM LEGEND 115V/60Hz/1Ph - 230V/50Hz/1Ph 6-37ICE MACHINE HEAD SECTION QF400 6-38 QC700/QF800 115V/60Hz/1Ph - 230V/50Hz/1Ph 115/60/1 - 230/50/1 6-39COMPRESSOR SECTION QC700/QF800 6-40 ICE MACHINE HEAD SECTION QF2200 6-41 RFC2085 230V/60HZ/1PH - 230/50/1 6-42 RFC2085 208-230V/60HZ/3PH ICE MACHINE HEAD SECTION Diagram Shown During Freeze Cycle6-43 6-44 RFC2385 230V/60HZ/1PH - 230/50/1 6-45 RFC2385 208-230V/60HZ/3PH Control Board 6-46 Specifications Component Specifications and DiagnosticsICE/OFF/CLEAN TOGGLE SWITCH Function Check Procedure 6-48 Failure Modes 6-49MOTOR SPEED SENSOR Function 6-50 WATER LEVEL PROBES Function 6-51 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 6-56 FAN CYCLE CONTROL Function Check Resistance Ohm Values COMPRESSOR ELECTRICAL DIAGNOSTICS6-57 Check Motor Windings to Ground Relay Operation Check 6-58Diagnosing Start Components 6-59 Diagnosing An Ice Machine That Will Not RunDiagnosing A Condensing Unit That Will Not Run QF400/QC700/QF800/QF2200/QF2300 6-60 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 Analysis EQUALIZATION VALVE QF2300 GeneralNormal Operation WATER REGULATING VALVE WATER-COOLEDMODELS ONLY FREEZE CYCLE OPERATION Air-CooledIce Machines 7-10HEADMASTER CONTROL VALVE Function Air-CooledCondensing Units 24 Hour Ice Production 7-11QF400 SELF-CONTAINEDAIR COOLED Operating Pressures QC700 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 Normal Self-ContainedModel Procedures Refrigerant Recovery/Evacuation and RechargingREFRIGERANT RECOVERY/EVACUATION Recovery/Evacuation Connections Connections Recovery/Evacuation QF2200/QF23007-16 Charging Connections Self-ContainedModel Charging Procedures7-17 Remote Charging Procedures QF2200/QF2300 7-18 Determining 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 FILTER-DRIERS Liquid Line Filter Drier SUCTION CLEAN-UPFILTER/DRIER QF400/QC700/QF8007-23 Remote Models 7-24 REFRIGERANT DEFINITIONS RecoverNew Product Specifications Recycle Revised 8/2003 Attend A Manitowoc Factory Service School REFRIGERANT RE-USEPOLICY 3.Recovered or Recycled Refrigerant7-25 1.New Refrigerant 7-26