Manitowoc Ice QF2200, QF0800, QC0700 Electrical System, Section, 6-32, QF2300, Automatic Shut-Off

Page 94
6-32

Electrical System

Section 6

 

 

QF2300

Automatic Shut-Off

L1

3A. ICE RUN OUT

Ice will build up in the bin until it contacts the bin level probe. After ice contacts the bin level probe for 30 continuous seconds the liquid line solenoid valve, equalization valve and compressor de-energize. To allow excess ice to run out, the gear motor and the water float valve solenoid remain energized for an additional 4 minutes, then de- energize.

GROUND

 

C1

C2

L2

 

 

 

 

 

 

LIQUID LINE

 

 

(54)

SOLENOID

(53)

RELAY

 

 

(91)

 

 

 

K2

 

EQUALIZATION

 

 

(58)

SOLENOID

(57)

 

RELAY

 

 

 

 

 

(25)

K1

 

 

 

7 AMP

 

CENTRIFUGAL

(22)

 

 

SWITCH

FUSE

 

INTERNAL

 

 

 

(65)

OVERLOAD

START

 

 

 

 

 

 

 

 

 

RELAY

 

RUN

 

RELAY K4

 

 

 

K3

 

 

 

 

GEARMOTOR

 

 

 

 

 

WATER FLOAT

 

 

 

(52)

VALVE

(56)

 

 

 

 

 

(22)

 

 

 

 

 

(55)

 

 

(51)

 

 

 

 

 

DUMP VALVE

 

 

 

SV2110

 

 

3A. ICE RUN OUT (45 Seconds)

Toggle Switch

ICE

Bin Level Probe

CLOSED ( Ice Contacting probe)

Control Board Relays

 

#1

Liquid Line Solenoid Valve

OFF

#2

Dump Valve

OFF

#3

Gear Motor

ON

#$

Water Float Valve Solenoid Coil

ON

6-32

Revised 8/2003

Part No. 80-1214-3

 

 

Page 93 Page 95
Image 94
Page 93 Page 95
Contents Service Manual Flake Models QF0400/QF0800 QF2200/QF2300Chiplet Models QC0700 Flake / Chiplet Model Ice MachinesRead These Before Proceeding Safety NoticesProcedural Notices PERSONAL INJURY POTENTIALAccessories Table of ContentsSection Installation Instructions Manitowoc Cleaner and SanitizerExterior Cleaning Table of Contents continuedSection Maintenance Preventative Maintenance Cleaning ProcedureReset Procedure Table of Contents continued SectionSection Troubleshooting SafeGuard Indicator LightsSection Refrigeration System ICE/OFF/CLEAN Toggle SwitchCompressor Electrical Diagnostics 6-46Table of Contents continued Table of Contents continued Accessories Section General InformationHow to Read a Model Number MANITOWOC CLEANER AND SANITIZERModel/Serial Number Location General InformationSection Model/Serial Number LocationGENERAL Owner Warranty Registration CardWarranty Coverage PARTSTHIS PAGE INTENTIONALLY LEFT BLANK QF400 AIR COOLED ICE MACHINE Section Installation InstructionsIce Machine Dimensions QC700/QF800 AIR COOLED ICE MACHINEInstallation Instructions Ice Machine Heat of Rejection Location of Ice MachineIce Machine Head Section Clearance Requirements Location of Remote Condensing UnitQC700/QF800 Air-CooledIce Machines Only Leveling the Ice Storage BinCondenser Air Baffle Air BaffleFUSE/CIRCUIT BREAKER Electrical ServiceVOLTAGE MINIMUM CIRCUIT AMPACITYIce Machine Head Section Electrical RequirementsFor United Kingdom Only Remote Condensing Unit115/60/1 QF2200 ICE MACHINE HEAD SECTION 115/60/1QF2300 ICE MACHINE HEAD SECTION 230/1/50RFC2385 REMOTE CONDENSING UNIT 208-230/1/60 Remote Electrical Wiring ConnectionsRFC2085 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 LINES2-10 Typical Water Supply Drain InstallationWATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS QF2200/RFC2085 AND QF2300/RFC2385 ONLY Refrigeration System Installation2-11 USAGE WITH NON-MANITOWOC CONDENSING UNITSStep 1 Verify Ice Machine and Remote Condensing Refrigeration Line Set Installation2-12 Unit Locations Are Within GuidelinesC. SUCTION LINE OIL TRAPS Service Loop2-13 Manitowoc S-TrapKitStep 4 Connecting the line set 2-142-15 Torque Value’s Open Receiver Service Valve2-16 Step 7 Leak Check The Refrigeration System2-17 Suction Shut Off Valve Insulation2-18 ICE MACHINE HEAD SECTION QC700/QF800 Section Ice Machine OperationComponent Identification QF400QF2300 Ice Machine OperationSection RFC2385 Remote Condensing UnitGENERAL Operational ChecksWATER LEVEL CHECK Heavily Scaled Cleaning Procedure Interior Cleaning and SanitizingCleaning/Sanitizing Procedure EXTERIOR CLEANINGSelf-Contained Air-CooledFilter CLEANING THE CONDENSERAir-CooledCondenser Straighten Bent Condenser FinsMANITOWOC’S CLEANING TECHNOLOGY PREVENTATIVE MAINTENANCE CLEANING PROCEDURE QF400 CLEANING/SANITIZING PROCEDURE QC700/QF800/QF2300 CLEANING/SANITIZING PROCEDURE QF400 part number 3-10only REMOVAL OF PARTS FOR CLEANING/SANITIZING 3-11QC700/QF800 3-12Water Level Probe Removal Water Reservoir Cover RemovalQF2300 Shown 3-13Float Valve Removal Water Reservoir Removal 3-14Ice Diverter Removal 3-15 Ice Chute RemovalBin Door Removal 3-16Cabinet Removal 3-17 Dump Valve DisassemblyWater Dump Valve WATER COOLED CONDENSING UNIT Removal from Service/Winterization3-18 Pry Open the Water Regulating ValvePRIOR TO START-UP Section Ice Machine Sequence of OperationQF400/QC700/QF800 INITIAL START-UP1A. FlushRemote Condensing Unit 2. Freeze Ice Machine Sequence of OperationQF2200 Remote Condensing Unit 3. Automatic Shut-OffQF2300 THIS PAGE INTENTIONALLY LEFT BLANK Section Troubleshooting ChecklistRESET PROCEDURE TroubleshootingSafeguard Feature SAFEGUARD INDICATOR LIGHTSSAFEGUARD MODES No Water TroubleshootingAnalyzing Why SafeGuards May Stop the Ice Machine No Water ChecklistGear Motor Speed Checklist Gear Motor SpeedTemperature Sensor Checklist QF400/QC700/QF800 Temperature is Too High or Low QF400/QC700/QF800Temperature Sensor Checklist QF2200 Temperature is Too High or Low QF2200 OnlyGear Box Removal QF2200/QF2300 Evaporator Removal 5-10 Section Electrical System Energized Parts ChartsElectrical System Electrical System Wiring Diagram Sequence of OperationL1 1B. WATER FILL Freeze Cycle Automatic Shut-Off 3B. DRAIN EVAPORATOR Electrical System Wiring Diagram Sequence of L1 Operation 6-106-11 6-12 6-13 6-14 6-15 6-16 6-17 RFC2085 Initial Start-Up Remote Condensing Unit6-18 Initial Start-Up6-19 RFC2085 Initial Start-Up6-20 6-21 RFC2085 Freeze Cycle6-22 QF2200 Automatic Shut-Off6-23 RFC2085 Automatic Shut-Off6-24 6-25 8 Minute LockoutWiring Diagram Sequence of Operation 6-266-27 RFC23856-28 6-29 6-30 6-31 6-32 6-33 6-34 QF2300 Automatic Shut-Off6-35 WIRING DIAGRAM LEGEND Wiring Diagrams6-36 ICE MACHINE HEAD SECTION QF400 6-37115V/60Hz/1Ph - 230V/50Hz/1Ph 6-38 QC700/QF800 115V/60Hz/1Ph - 230V/50Hz/1PhCOMPRESSOR SECTION QC700/QF800 6-39115/60/1 - 230/50/1 6-40 ICE MACHINE HEAD SECTION QF22006-41 RFC2085 230V/60HZ/1PH - 230/50/16-42 RFC2085 208-230V/60HZ/3PH6-43 Diagram Shown During Freeze CycleICE MACHINE HEAD SECTION 6-44 RFC2385 230V/60HZ/1PH - 230/50/16-45 RFC2385 208-230V/60HZ/3PHControl Board 6-46Specifications Component Specifications and DiagnosticsICE/OFF/CLEAN TOGGLE SWITCH Function Check Procedure6-48 MOTOR SPEED SENSOR Function 6-49Failure Modes 6-50 WATER LEVEL PROBES Function6-51 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 6-56 FAN CYCLE CONTROL FunctionCheck Resistance Ohm Values COMPRESSOR ELECTRICAL DIAGNOSTICS6-57 Check Motor Windings to GroundDiagnosing Start Components 6-58Relay Operation Check 6-59 Diagnosing An Ice Machine That Will Not RunDiagnosing A Condensing Unit That Will Not Run QF400/QC700/QF800/QF2200/QF23006-60 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 Analysis EQUALIZATION VALVE QF2300 GeneralNormal Operation WATER REGULATING VALVE WATER-COOLEDMODELS ONLYFREEZE CYCLE OPERATION Air-CooledIce Machines 7-10HEADMASTER CONTROL VALVE Function Air-CooledCondensing Units24 Hour Ice Production 7-11QF400 SELF-CONTAINEDAIR COOLED Operating PressuresQC700 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 Normal Self-ContainedModel Procedures Refrigerant Recovery/Evacuation and RechargingREFRIGERANT RECOVERY/EVACUATION Recovery/Evacuation Connections7-16 Recovery/Evacuation QF2200/QF2300Connections 7-17 Self-ContainedModel Charging ProceduresCharging Connections Remote Charging Procedures QF2200/QF2300 7-187-19 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 FILTER-DRIERS Liquid Line Filter Drier SUCTION CLEAN-UPFILTER/DRIER QF400/QC700/QF8007-23 Remote Models7-24 REFRIGERANT DEFINITIONS RecoverNew Product Specifications RecycleRevised 8/2003 Attend A Manitowoc Factory Service School REFRIGERANT RE-USEPOLICY 3.Recovered or Recycled Refrigerant7-25 1.New Refrigerant7-26
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