Section Refrigeration System, SV3082 | Manitowoc Ice QF0400, QF2300

Section 7

Section 7

Refrigeration System

Tubing Schematic

QF400/QC700/QF800

EXPANSION

VALVE

DRIER

EVAPORATOR

RECEIVER

(QF400)

CONDENSER

(AIR OR WATER)

COMPRESSOR

SV3082

Part No. 80-1214-3	Revised 8/2003	7-1
	Revised 8/2003

Image 123

Manitowoc Ice QF0400, QF2300, QF0800, QC0700 Section Refrigeration System, Tubing Schematic, QF400/QC700/QF800, SV3082

Contents

Flake / Chiplet Model Ice Machines Flake Models QF0400/QF0800 QF2200/QF2300Chiplet Models QC0700 Service Manual PERSONAL INJURY POTENTIAL Safety NoticesProcedural Notices Read These Before Proceeding Manitowoc Cleaner and Sanitizer Table of ContentsSection Installation Instructions Accessories Preventative Maintenance Cleaning Procedure Table of Contents continuedSection Maintenance Exterior Cleaning SafeGuard Indicator Lights Table of Contents continued SectionSection Troubleshooting Reset Procedure 6-46 ICE/OFF/CLEAN Toggle SwitchCompressor Electrical Diagnostics Section Refrigeration System Table of Contents continued Revised 8/2003 MANITOWOC CLEANER AND SANITIZER Section General InformationHow to Read a Model Number Accessories Model/Serial Number Location General InformationSection Model/Serial Number Location PARTS Owner Warranty Registration CardWarranty Coverage GENERAL THIS PAGE INTENTIONALLY LEFT BLANK QC700/QF800 AIR COOLED ICE MACHINE Section Installation InstructionsIce Machine Dimensions QF400 AIR COOLED ICE MACHINE Installation Instructions Location of Remote Condensing Unit Location of Ice MachineIce Machine Head Section Clearance Requirements Ice Machine Heat of Rejection Air Baffle Leveling the Ice Storage BinCondenser Air Baffle QC700/QF800 Air-CooledIce Machines Only MINIMUM CIRCUIT AMPACITY Electrical ServiceVOLTAGE FUSE/CIRCUIT BREAKER Remote Condensing Unit Electrical RequirementsFor United Kingdom Only Ice Machine Head Section 230/1/50 QF2200 ICE MACHINE HEAD SECTION 115/60/1QF2300 ICE MACHINE HEAD SECTION 115/60/1 Remote Electrical Wiring Connections RFC2385 REMOTE CONDENSING UNIT 208-230/1/60RFC2085 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 SUPPLY Typical Water Supply Drain Installation 2-10WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS USAGE WITH NON-MANITOWOC CONDENSING UNITS Refrigeration System Installation2-11 QF2200/RFC2085 AND QF2300/RFC2385 ONLY Unit Locations Are Within Guidelines Refrigeration Line Set Installation2-12 Step 1 Verify Ice Machine and Remote Condensing Manitowoc S-TrapKit Service Loop2-13 C. SUCTION LINE OIL TRAPS 2-14 Step 4 Connecting the line set 2-15 Step 7 Leak Check The Refrigeration System Open Receiver Service Valve2-16 Torque Value’s Suction Shut Off Valve Insulation 2-17 2-18 QF400 Section Ice Machine OperationComponent Identification ICE MACHINE HEAD SECTION QC700/QF800 RFC2385 Remote Condensing Unit Ice Machine OperationSection QF2300 Operational Checks GENERALWATER LEVEL CHECK EXTERIOR CLEANING Interior Cleaning and SanitizingCleaning/Sanitizing Procedure Heavily Scaled Cleaning Procedure Straighten Bent Condenser Fins CLEANING THE CONDENSERAir-CooledCondenser Self-Contained Air-CooledFilter MANITOWOC’S CLEANING TECHNOLOGY PREVENTATIVE MAINTENANCE CLEANING PROCEDURE QF400 CLEANING/SANITIZING PROCEDURE QC700/QF800/QF2300 CLEANING/SANITIZING PROCEDURE QF400 3-10 part numberonly 3-11 REMOVAL OF PARTS FOR CLEANING/SANITIZING Water Reservoir Cover Removal 3-12Water Level Probe Removal QC700/QF800 3-13 QF2300 ShownFloat Valve Removal 3-14 Water Reservoir RemovalIce Diverter Removal Ice Chute Removal 3-15 3-16 Bin Door RemovalCabinet Removal Dump Valve Disassembly 3-17Water Dump Valve Pry Open the Water Regulating Valve Removal from Service/Winterization3-18 WATER COOLED CONDENSING UNIT INITIAL START-UP1A. Flush Section Ice Machine Sequence of OperationQF400/QC700/QF800 PRIOR TO START-UP Remote Condensing Unit 3. Automatic Shut-Off Ice Machine Sequence of OperationQF2200 Remote Condensing Unit 2. Freeze QF2300 THIS PAGE INTENTIONALLY LEFT BLANK Checklist Section Troubleshooting SAFEGUARD INDICATOR LIGHTS TroubleshootingSafeguard Feature RESET PROCEDURE No Water Checklist TroubleshootingAnalyzing Why SafeGuards May Stop the Ice Machine SAFEGUARD MODES No Water Gear Motor Speed Gear Motor Speed Checklist Temperature is Too High or Low QF400/QC700/QF800 Temperature Sensor Checklist QF400/QC700/QF800 Temperature is Too High or Low QF2200 Only Temperature Sensor Checklist QF2200 Gear Box Removal QF2200/QF2300 Evaporator Removal 5-10 Energized Parts Charts Section Electrical System Electrical System QF2300 Wiring Diagram Sequence of OperationL1 1B. WATER FILL Freeze Cycle Automatic Shut-Off 3B. DRAIN EVAPORATOR Section 6-10 Wiring Diagram Sequence of L1 Operation 6-11 6-12 6-13 6-14 6-15 6-16 RFC2085 Initial Start-Up Remote Condensing Unit 6-17 Initial Start-Up 6-18 RFC2085 Initial Start-Up 6-19 6-20 RFC2085 Freeze Cycle 6-21 QF2200 Automatic Shut-Off 6-22 RFC2085 Automatic Shut-Off 6-23 6-24 8 Minute Lockout 6-25 6-26 Wiring Diagram Sequence of Operation RFC2385 6-27 6-28 6-29 6-30 6-31 6-32 6-33 QF2300 Automatic Shut-Off 6-34 6-35 Wiring Diagrams WIRING DIAGRAM LEGEND6-36 6-37 ICE MACHINE HEAD SECTION QF400115V/60Hz/1Ph - 230V/50Hz/1Ph QC700/QF800 115V/60Hz/1Ph - 230V/50Hz/1Ph 6-38 6-39 COMPRESSOR SECTION QC700/QF800115/60/1 - 230/50/1 ICE MACHINE HEAD SECTION QF2200 6-40 RFC2085 230V/60HZ/1PH - 230/50/1 6-41 RFC2085 208-230V/60HZ/3PH 6-42 Diagram Shown During Freeze Cycle 6-43ICE MACHINE HEAD SECTION RFC2385 230V/60HZ/1PH - 230/50/1 6-44 RFC2385 208-230V/60HZ/3PH 6-45 6-46 Control Board Check Procedure Component Specifications and DiagnosticsICE/OFF/CLEAN TOGGLE SWITCH Function Specifications 6-48 6-49 MOTOR SPEED SENSOR FunctionFailure Modes WATER LEVEL PROBES Function 6-50 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 FAN CYCLE CONTROL Function 6-56 Check Motor Windings to Ground COMPRESSOR ELECTRICAL DIAGNOSTICS6-57 Check Resistance Ohm Values 6-58 Diagnosing Start ComponentsRelay Operation Check QF400/QC700/QF800/QF2200/QF2300 Diagnosing An Ice Machine That Will Not RunDiagnosing A Condensing Unit That Will Not Run 6-59 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 WATER REGULATING VALVE WATER-COOLEDMODELS ONLY EQUALIZATION VALVE QF2300 GeneralNormal Operation Analysis Air-CooledCondensing Units 7-10HEADMASTER CONTROL VALVE Function FREEZE CYCLE OPERATION Air-CooledIce Machines Operating Pressures 7-11QF400 SELF-CONTAINEDAIR COOLED 24 Hour Ice Production 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 Recovery/Evacuation Connections Refrigerant Recovery/Evacuation and RechargingREFRIGERANT RECOVERY/EVACUATION Normal Self-ContainedModel Procedures Recovery/Evacuation QF2200/QF2300 7-16Connections Self-ContainedModel Charging Procedures 7-17Charging Connections 7-18 Remote Charging Procedures QF2200/QF2300 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 Remote Models SUCTION CLEAN-UPFILTER/DRIER QF400/QC700/QF8007-23 FILTER-DRIERS Liquid Line Filter Drier Recycle REFRIGERANT DEFINITIONS RecoverNew Product Specifications 7-24 Revised 8/2003 Attend A Manitowoc Factory Service School 1.New Refrigerant 3.Recovered or Recycled Refrigerant7-25 REFRIGERANT RE-USEPOLICY 7-26