Manitowoc Ice QC0700 Section, Electrical System, 6-25, QF2200 Automatic Shut-Off, Minute Lockout

Page 87
8 Minute Lockout

Section 6

Electrical System

 

 

QF2200

Automatic Shut-Off

L1

L2

GROUND

An 8 minute lockout starts when the compressor de-energizes. When the ice drops away from the bin level probe the ice machine will begin an initial start-up cycle, provided the “8 minute lockout” has expired.

8 Minute Lockout

The bin level light will flash until the 8 minute lockout expires. After the 8 minute lockout time can be overridden by moving the ON/OFF/ CLEAN toggle switch for ICE to OFF and back to ICE.

 

 

LIQUID LINE

 

RELAY

 

(54)

SOLENOID

(53)

K2

 

 

 

RELAY

CENTRIFUGAL

 

K1

 

 

SWITCH

 

(25)

 

 

 

 

 

 

 

7 AMP

 

INTERNAL

 

 

FUSE

 

 

 

 

(65)

OVERLOAD

START

 

 

 

 

 

 

 

 

 

RELAY

 

RUN

 

RELAY K4

 

 

 

K3

 

 

 

 

 

GEARMOTOR

 

(52)

WATER FLOAT

 

 

 

 

VALVE COIL

 

 

 

 

 

(56)

 

 

(22)

 

 

 

 

(51)

(55)

 

 

 

 

 

 

 

DUMP VALVE

 

 

 

 

COIL

 

 

 

 

 

 

 

SV3048

Automatic Shut-Off(Until Ice No Longer Contacts Bin Level Probe)

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

OFF

 

 

 

#$

Water Float Valve Solenoid Coil

OFF

 

 

 

Part No. 80-1214-3

Revised 8/2003

6-25

 

 

Page 86 Page 88
Image 87
Page 86 Page 88
Contents Flake / Chiplet Model Ice Machines Flake Models QF0400/QF0800 QF2200/QF2300Chiplet Models QC0700 Service ManualPERSONAL INJURY POTENTIAL Safety NoticesProcedural Notices Read These Before ProceedingManitowoc Cleaner and Sanitizer Table of ContentsSection Installation Instructions AccessoriesPreventative Maintenance Cleaning Procedure Table of Contents continuedSection Maintenance Exterior CleaningSafeGuard Indicator Lights Table of Contents continued SectionSection Troubleshooting Reset Procedure6-46 ICE/OFF/CLEAN Toggle SwitchCompressor Electrical Diagnostics Section Refrigeration SystemTable of Contents continued Revised 8/2003 MANITOWOC CLEANER AND SANITIZER Section General InformationHow to Read a Model Number AccessoriesModel/Serial Number Location General InformationSection Model/Serial Number LocationPARTS Owner Warranty Registration CardWarranty Coverage GENERALTHIS PAGE INTENTIONALLY LEFT BLANK QC700/QF800 AIR COOLED ICE MACHINE Section Installation InstructionsIce Machine Dimensions QF400 AIR COOLED ICE MACHINEInstallation Instructions Location of Remote Condensing Unit Location of Ice MachineIce Machine Head Section Clearance Requirements Ice Machine Heat of RejectionAir Baffle Leveling the Ice Storage BinCondenser Air Baffle QC700/QF800 Air-CooledIce Machines OnlyMINIMUM CIRCUIT AMPACITY Electrical ServiceVOLTAGE FUSE/CIRCUIT BREAKERRemote Condensing Unit Electrical RequirementsFor United Kingdom Only Ice Machine Head Section230/1/50 QF2200 ICE MACHINE HEAD SECTION 115/60/1QF2300 ICE MACHINE HEAD SECTION 115/60/1Remote 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 SUPPLYTypical 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 ONLYUnit Locations Are Within Guidelines Refrigeration Line Set Installation2-12 Step 1 Verify Ice Machine and Remote CondensingManitowoc S-TrapKit Service Loop2-13 C. SUCTION LINE OIL TRAPS2-14 Step 4 Connecting the line set2-15 Step 7 Leak Check The Refrigeration System Open Receiver Service Valve2-16 Torque Value’sSuction Shut Off Valve Insulation 2-172-18 QF400 Section Ice Machine OperationComponent Identification ICE MACHINE HEAD SECTION QC700/QF800RFC2385 Remote Condensing Unit Ice Machine OperationSection QF2300Operational Checks GENERALWATER LEVEL CHECK EXTERIOR CLEANING Interior Cleaning and SanitizingCleaning/Sanitizing Procedure Heavily Scaled Cleaning ProcedureStraighten Bent Condenser Fins CLEANING THE CONDENSERAir-CooledCondenser Self-Contained Air-CooledFilterMANITOWOC’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/SANITIZINGWater Reservoir Cover Removal 3-12Water Level Probe Removal QC700/QF8003-13 QF2300 ShownFloat Valve Removal 3-14 Water Reservoir RemovalIce Diverter Removal Ice Chute Removal 3-153-16 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 UNITINITIAL START-UP1A. Flush Section Ice Machine Sequence of OperationQF400/QC700/QF800 PRIOR TO START-UPRemote Condensing Unit 3. Automatic Shut-Off Ice Machine Sequence of OperationQF2200 Remote Condensing Unit 2. FreezeQF2300 THIS PAGE INTENTIONALLY LEFT BLANK Checklist Section TroubleshootingSAFEGUARD INDICATOR LIGHTS TroubleshootingSafeguard Feature RESET PROCEDURENo Water Checklist TroubleshootingAnalyzing Why SafeGuards May Stop the Ice Machine SAFEGUARD MODES No WaterGear Motor Speed Gear Motor Speed ChecklistTemperature is Too High or Low QF400/QC700/QF800 Temperature Sensor Checklist QF400/QC700/QF800Temperature is Too High or Low QF2200 Only Temperature Sensor Checklist QF2200Gear Box Removal QF2200/QF2300 Evaporator Removal 5-10 Energized Parts Charts Section Electrical SystemElectrical 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 Operation6-11 6-12 6-13 6-14 6-15 6-16 RFC2085 Initial Start-Up Remote Condensing Unit 6-17Initial Start-Up 6-18RFC2085 Initial Start-Up 6-196-20 RFC2085 Freeze Cycle 6-21QF2200 Automatic Shut-Off 6-22RFC2085 Automatic Shut-Off 6-236-24 8 Minute Lockout 6-256-26 Wiring Diagram Sequence of OperationRFC2385 6-276-28 6-29 6-30 6-31 6-32 6-33 QF2300 Automatic Shut-Off 6-346-35 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 6-386-39 COMPRESSOR SECTION QC700/QF800115/60/1 - 230/50/1 ICE MACHINE HEAD SECTION QF2200 6-40RFC2085 230V/60HZ/1PH - 230/50/1 6-41RFC2085 208-230V/60HZ/3PH 6-42Diagram Shown During Freeze Cycle 6-43ICE MACHINE HEAD SECTION RFC2385 230V/60HZ/1PH - 230/50/1 6-44RFC2385 208-230V/60HZ/3PH 6-456-46 Control BoardCheck Procedure Component Specifications and DiagnosticsICE/OFF/CLEAN TOGGLE SWITCH Function Specifications6-48 6-49 MOTOR SPEED SENSOR FunctionFailure Modes WATER LEVEL PROBES Function 6-506-51 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 6-56Check Motor Windings to Ground COMPRESSOR ELECTRICAL DIAGNOSTICS6-57 Check Resistance Ohm Values6-58 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 6-596-60 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 AnalysisAir-CooledCondensing Units 7-10HEADMASTER CONTROL VALVE Function FREEZE CYCLE OPERATION Air-CooledIce MachinesOperating Pressures 7-11QF400 SELF-CONTAINEDAIR COOLED 24 Hour Ice Production7-12 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 ProceduresRecovery/Evacuation QF2200/QF2300 7-16Connections Self-ContainedModel Charging Procedures 7-17Charging Connections 7-18 Remote Charging Procedures QF2200/QF2300SYSTEM 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 DrierRecycle REFRIGERANT DEFINITIONS RecoverNew Product Specifications 7-24Revised 8/2003 Attend A Manitowoc Factory Service School 1.New Refrigerant 3.Recovered or Recycled Refrigerant7-25 REFRIGERANT RE-USEPOLICY7-26
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