Section Ice Machine Operation, QF400 | Manitowoc Ice QF0800, QF2300

Section 3

Section 3

Ice Machine Operation

Component Identification

ICE MACHINE HEAD SECTION

QC700/QF800

WATER LEVEL

PROBE

CLEANING

SOLUTION FILL

HOLE

DUMP VALVE

WATER FLOAT

VALVE COIL

CONDENSER FAN

MOTOR

ICECHUTE

ICE/OFF/CLEAN

TOGGLE SWITCHWATER INLET QUICK DISCONNECT

FITTING

SV2019

QF400

WATER LEVEL

WATER FLOAT PROBES VALVE COIL

WATER INLET QUICK

EVAPORATORDISCONNECT

CONTROL

BOXDUMP VALVE

	POTABLE
	WATER DRAIN
ICE/OFF/CLEAN	GEAR MOTOR /
ICE/OFF/CLEAN	GEAR BOX
TOGGLE SWITCH	ASSEMBLY
CONDESER
FAN/ MOTOR	SV2053

QUARTER TURN

THUMBSCREWS

CONDENSER

AIR FILTER

POTABLE

WATER

INLET

	GEARMOTOR	POTABLE WATER
	GEARMOTOR	DRAIN
		DRAIN

SV2022

ICE

CHUTE

AIR COOLED

CONDENSER

SV2044

Part Number 80-1214-3

3-1

Image 31

Manitowoc Ice QF0800 Section Ice Machine Operation, Component Identification, ICE MACHINE HEAD SECTION QC700/QF800, QF400

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 RFC2385 REMOTE CONDENSING UNIT 208-230/1/60 Remote Electrical Wiring ConnectionsRFC2085 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 2-10 Typical Water Supply Drain InstallationWATER 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 GENERAL Operational ChecksWATER 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 part number 3-10only 3-11 REMOVAL OF PARTS FOR CLEANING/SANITIZING Water Reservoir Cover Removal 3-12Water Level Probe Removal QC700/QF800 QF2300 Shown 3-13Float Valve Removal Water Reservoir Removal 3-14Ice Diverter Removal Ice Chute Removal 3-15 Bin Door Removal 3-16Cabinet Removal 3-17 Dump Valve DisassemblyWater 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 Electrical System 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 DIAGRAM LEGEND Wiring Diagrams6-36 ICE MACHINE HEAD SECTION QF400 6-37115V/60Hz/1Ph - 230V/50Hz/1Ph QC700/QF800 115V/60Hz/1Ph - 230V/50Hz/1Ph 6-38 COMPRESSOR SECTION QC700/QF800 6-39115/60/1 - 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 6-43 Diagram Shown During Freeze CycleICE 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 MOTOR SPEED SENSOR Function 6-49Failure Modes WATER LEVEL PROBES Function 6-50 6-51 TEMPERATURE SENSOR Function 6-52TEMPERATURE/RESISTANCE CHART CONTROL BOARD RELAYS Function 6-53MAIN FUSE Function WATER FLOAT VALVE Function 6-54WATER LEVEL CHECK HIGH PRESSURE CONTROL HPCO Function 6-55Function FAN CYCLE CONTROL Function 6-56 Check Motor Windings to Ground COMPRESSOR ELECTRICAL DIAGNOSTICS6-57 Check Resistance Ohm Values Diagnosing Start Components 6-58Relay 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 Tubing Schematic Section Refrigeration SystemSV3082 QF2200/RFC2085 Refrigeration SystemCondensing Unit QF2300/RFC2385 Refrigeration System Diagnostics ICE PRODUCTION/QUALITY CHECK Quality Check BEFORE BEGINNING SERVICEIce Production Check WATER SYSTEM CHECKLIST INSTALLATION/VISUAL INSPECTION CHECKLISTSAFEGUARDS Discharge Pressure High Checklist ProcedureDischarge Pressure Low Checklist Suction Pressure Low Checklist Suction Pressure High 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 QC700 SELF-CONTAINEDAIR COOLED 7-12QC700 SELF-CONTAINEDWATER COOLED QF800 SELF-CONTAINEDAIR COOLED 7-13QF800 SELF-CONTAINEDWATER COOLED QF2200/RFC2085 REMOTE AIR COOLED 7-14QF2300/RFC2385 REMOTE AIR COOLED Recovery/Evacuation Connections Refrigerant Recovery/Evacuation and RechargingREFRIGERANT RECOVERY/EVACUATION Normal Self-ContainedModel Procedures 7-16 Recovery/Evacuation QF2200/QF2300Connections 7-17 Self-ContainedModel Charging ProceduresCharging Connections 7-18 Remote Charging Procedures QF2200/QF2300 7-19 SYSTEM CONTAMINATION CLEAN-UP GeneralDetermining Severity Of Contamination Severe System Contamination Cleanup Procedure Mild System Contamination Cleanup Procedure7-20 7-21 7-22 Using Pinch-OffToolSV1406 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