Section, Refrigeration System | Manitowoc Ice QF2300, QF0800, QC0700

Section 7		Refrigeration System
QF2300/RFC2385
	Condensing Unit
SUCTION LINE	COMPRESSOR
FILTER		CONDENSER
		CONDENSER
		HEAD
SUCTION		PRESSURE
SUCTION		CONTROL
ACCUMULATOR		CONTROL
ACCUMULATOR		VALVE

STRAP REQUIRED 21’ OR GREATER RISE

	Ice Machine Head Section
SUCTION	LIQUID LINE
SHUT-OFF	SHUT-OFF
VALVE	VALVE
	LLSV

TXV

EVAPORATOR

DRIER

EQUALIZATION

VALVE

RECEIVER	CHECK VALVE
SERVICE
VALVE
	RECEIVER

SV2105

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

Page 125

Image 125

Manitowoc Ice QF0800, QC0700, QF0400 Refrigeration System, QF2300/RFC2385, Condensing Unit, Ice Machine Head Section

Contents

Chiplet Models QC0700 Flake Models QF0400/QF0800 QF2200/QF2300Service Manual Flake / Chiplet Model Ice Machines Procedural Notices Safety NoticesRead These Before Proceeding PERSONAL INJURY POTENTIAL Section Installation Instructions Table of ContentsAccessories Manitowoc Cleaner and Sanitizer Section Maintenance Table of Contents continuedExterior Cleaning Preventative Maintenance Cleaning Procedure Section Troubleshooting Table of Contents continued SectionReset Procedure SafeGuard Indicator Lights Compressor Electrical Diagnostics ICE/OFF/CLEAN Toggle SwitchSection Refrigeration System 6-46 Table of Contents continued Revised 8/2003 How to Read a Model Number Section General InformationAccessories MANITOWOC CLEANER AND SANITIZER Section General InformationModel/Serial Number Location Model/Serial Number Location Warranty Coverage Owner Warranty Registration CardGENERAL PARTS THIS PAGE INTENTIONALLY LEFT BLANK Ice Machine Dimensions Section Installation InstructionsQF400 AIR COOLED ICE MACHINE QC700/QF800 AIR COOLED ICE MACHINE Installation Instructions Ice Machine Head Section Clearance Requirements Location of Ice MachineIce Machine Heat of Rejection Location of Remote Condensing Unit Condenser Air Baffle Leveling the Ice Storage BinQC700/QF800 Air-CooledIce Machines Only Air Baffle VOLTAGE Electrical ServiceFUSE/CIRCUIT BREAKER MINIMUM CIRCUIT AMPACITY For United Kingdom Only Electrical RequirementsIce Machine Head Section Remote Condensing Unit QF2300 ICE MACHINE HEAD SECTION QF2200 ICE MACHINE HEAD SECTION 115/60/1115/60/1 230/1/50 RFC2085 REMOTE CONDENSING UNIT 208-230/1/60 Remote Electrical Wiring ConnectionsRFC2385 REMOTE CONDENSING UNIT 208-230/1/60 Cooling Tower Applications Water-CooledModels Ice Machine Head Section Water Supply and DrainsPOTABLE WATER SUPPLY POTABLE WATER INLET LINES WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS Typical Water Supply Drain Installation2-10 2-11 Refrigeration System InstallationQF2200/RFC2085 AND QF2300/RFC2385 ONLY USAGE WITH NON-MANITOWOC CONDENSING UNITS 2-12 Refrigeration Line Set InstallationStep 1 Verify Ice Machine and Remote Condensing Unit Locations Are Within Guidelines 2-13 Service LoopC. SUCTION LINE OIL TRAPS Manitowoc S-TrapKit 2-14 Step 4 Connecting the line set 2-15 2-16 Open Receiver Service ValveTorque Value’s Step 7 Leak Check The Refrigeration System Suction Shut Off Valve Insulation 2-17 2-18 Component Identification Section Ice Machine OperationICE MACHINE HEAD SECTION QC700/QF800 QF400 Section Ice Machine OperationQF2300 RFC2385 Remote Condensing Unit WATER LEVEL CHECK Operational ChecksGENERAL Cleaning/Sanitizing Procedure Interior Cleaning and SanitizingHeavily Scaled Cleaning Procedure EXTERIOR CLEANING Air-CooledCondenser CLEANING THE CONDENSERSelf-Contained Air-CooledFilter 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 3-11 REMOVAL OF PARTS FOR CLEANING/SANITIZING Water Level Probe Removal 3-12QC700/QF800 Water Reservoir Cover Removal Float Valve Removal 3-13QF2300 Shown Ice Diverter Removal 3-14Water Reservoir Removal Ice Chute Removal 3-15 Cabinet Removal 3-16Bin Door Removal Water Dump Valve Dump Valve Disassembly3-17 3-18 Removal from Service/WinterizationWATER COOLED CONDENSING UNIT Pry Open the Water Regulating Valve QF400/QC700/QF800 Section Ice Machine Sequence of OperationPRIOR TO START-UP INITIAL START-UP1A. Flush QF2200 Ice Machine Sequence of OperationRemote Condensing Unit 2. Freeze Remote Condensing Unit 3. Automatic Shut-Off QF2300 THIS PAGE INTENTIONALLY LEFT BLANK Checklist Section Troubleshooting Safeguard Feature TroubleshootingRESET PROCEDURE SAFEGUARD INDICATOR LIGHTS Analyzing Why SafeGuards May Stop the Ice Machine TroubleshootingSAFEGUARD MODES No Water No Water Checklist 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 Section 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 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 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 6-38 115/60/1 - 230/50/1 6-39COMPRESSOR SECTION QC700/QF800 ICE MACHINE HEAD SECTION QF2200 6-40 RFC2085 230V/60HZ/1PH - 230/50/1 6-41 RFC2085 208-230V/60HZ/3PH 6-42 ICE MACHINE HEAD SECTION Diagram Shown During Freeze Cycle6-43 RFC2385 230V/60HZ/1PH - 230/50/1 6-44 RFC2385 208-230V/60HZ/3PH 6-45 6-46 Control Board ICE/OFF/CLEAN TOGGLE SWITCH Function Component Specifications and DiagnosticsSpecifications Check Procedure 6-48 Failure Modes 6-49MOTOR SPEED SENSOR Function WATER LEVEL PROBES Function 6-50 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 FAN CYCLE CONTROL Function 6-56 6-57 COMPRESSOR ELECTRICAL DIAGNOSTICSCheck Resistance Ohm Values Check Motor Windings to Ground Relay Operation Check 6-58Diagnosing Start Components Diagnosing A Condensing Unit That Will Not Run Diagnosing An Ice Machine That Will Not Run6-59 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 Normal Operation EQUALIZATION VALVE QF2300 GeneralAnalysis WATER REGULATING VALVE WATER-COOLEDMODELS ONLY HEADMASTER CONTROL VALVE Function 7-10FREEZE CYCLE OPERATION Air-CooledIce Machines Air-CooledCondensing Units QF400 SELF-CONTAINEDAIR COOLED 7-1124 Hour Ice Production 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 REFRIGERANT RECOVERY/EVACUATION Refrigerant Recovery/Evacuation and RechargingNormal Self-ContainedModel Procedures Recovery/Evacuation Connections Connections Recovery/Evacuation QF2200/QF23007-16 Charging Connections Self-ContainedModel Charging Procedures7-17 7-18 Remote Charging Procedures QF2200/QF2300 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 7-23 SUCTION CLEAN-UPFILTER/DRIER QF400/QC700/QF800FILTER-DRIERS Liquid Line Filter Drier Remote Models New Product Specifications REFRIGERANT DEFINITIONS Recover7-24 Recycle Revised 8/2003 Attend A Manitowoc Factory Service School 7-25 3.Recovered or Recycled RefrigerantREFRIGERANT RE-USEPOLICY 1.New Refrigerant 7-26

Manitowoc Ice QF0800, QC0700 Section, Refrigeration System, QF2300/RFC2385, Condensing Unit

Models: QF2200 QF0400 QC0700 QF0800 QF2300

QF2300/RFC2385