Refrigeration System, Section, General

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Manitowoc Ice QF0800, QF2300, QC0700, QF0400, QF2200 service manual Section, Refrigeration System Diagnostics, General

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 Remote Electrical Wiring Connections RFC2385 REMOTE CONDENSING UNIT 208-230/1/60RFC2085 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 Typical Water Supply Drain Installation 2-10WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS 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 Operational Checks GENERALWATER LEVEL CHECK 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 3-10 part numberonly REMOVAL OF PARTS FOR CLEANING/SANITIZING 3-11 QC700/QF800 3-12Water Level Probe Removal Water Reservoir Cover Removal 3-13 QF2300 ShownFloat Valve Removal 3-14 Water Reservoir RemovalIce Diverter Removal 3-15 Ice Chute Removal 3-16 Bin Door RemovalCabinet Removal Dump Valve Disassembly 3-17Water Dump Valve 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 Section 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 Wiring Diagrams WIRING DIAGRAM LEGEND6-36 6-37 ICE MACHINE HEAD SECTION QF400115V/60Hz/1Ph - 230V/50Hz/1Ph 6-38 QC700/QF800 115V/60Hz/1Ph - 230V/50Hz/1Ph 6-39 COMPRESSOR SECTION QC700/QF800115/60/1 - 230/50/1 6-40 ICE MACHINE HEAD SECTION QF2200 6-41 RFC2085 230V/60HZ/1PH - 230/50/1 6-42 RFC2085 208-230V/60HZ/3PH Diagram Shown During Freeze Cycle 6-43ICE MACHINE HEAD SECTION 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 6-49 MOTOR SPEED SENSOR FunctionFailure Modes 6-50 WATER LEVEL PROBES Function 6-51 6-52 TEMPERATURE SENSOR FunctionTEMPERATURE/RESISTANCE CHART 6-53 CONTROL BOARD RELAYS FunctionMAIN FUSE Function 6-54 WATER FLOAT VALVE FunctionWATER LEVEL CHECK 6-55 HIGH PRESSURE CONTROL HPCO FunctionFunction 6-56 FAN CYCLE CONTROL Function Check Resistance Ohm Values COMPRESSOR ELECTRICAL DIAGNOSTICS6-57 Check Motor Windings to Ground 6-58 Diagnosing Start ComponentsRelay Operation Check 6-59 Diagnosing An Ice Machine That Will Not RunDiagnosing A Condensing Unit That Will Not Run QF400/QC700/QF800/QF2200/QF2300 6-60 Section Refrigeration System Tubing SchematicSV3082 Refrigeration System QF2200/RFC2085Condensing Unit QF2300/RFC2385 Refrigeration System Diagnostics BEFORE BEGINNING SERVICE ICE PRODUCTION/QUALITY CHECK Quality CheckIce Production Check INSTALLATION/VISUAL INSPECTION CHECKLIST WATER SYSTEM CHECKLISTSAFEGUARDS Procedure Discharge Pressure High ChecklistDischarge Pressure Low Checklist Suction Pressure High Checklist Suction Pressure Low ChecklistANALYZING SUCTION PRESSURE 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 7-12 QC700 SELF-CONTAINEDAIR COOLEDQC700 SELF-CONTAINEDWATER COOLED 7-13 QF800 SELF-CONTAINEDAIR COOLEDQF800 SELF-CONTAINEDWATER COOLED 7-14 QF2200/RFC2085 REMOTE AIR COOLEDQF2300/RFC2385 REMOTE AIR COOLED Normal Self-ContainedModel Procedures Refrigerant Recovery/Evacuation and RechargingREFRIGERANT RECOVERY/EVACUATION Recovery/Evacuation Connections Recovery/Evacuation QF2200/QF2300 7-16Connections Self-ContainedModel Charging Procedures 7-17Charging Connections Remote Charging Procedures QF2200/QF2300 7-18 SYSTEM CONTAMINATION CLEAN-UP General 7-19Determining Severity Of Contamination Mild System Contamination Cleanup Procedure Severe System Contamination Cleanup Procedure7-20 7-21 Using Pinch-OffTool 7-22SV1406 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

Manitowoc Ice QF0800, QF2300, QC0700, QF0400 Section, Refrigeration System Diagnostics, General

Models: QF2200 QF0400 QC0700 QF0800 QF2300