Manitowoc Ice QC0700 Electrical System, Section, Wiring Diagram Sequence of L1 Operation, 6-10

Page 72
Wiring Diagram Sequence of L1 Operation

Electrical System

Section 6

 

 

Wiring Diagram Sequence of L1 Operation

QC700/QF800

Initial Start-Up or Start-Up After Automatic Shut-Off

1A. WATER FLUSH

Immediately after placing the toggle switch in “ICE”, the dump valve solenoid, and gearbox are energized. After 45 seconds the dump valve de- energizes.

GROUND

 

 

 

 

 

 

 

 

 

 

L2 (N)

 

 

 

 

 

 

 

 

 

 

 

(21)

 

 

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

K2

 

 

 

 

 

 

 

 

 

 

 

 

RELAY

 

HIGH

CONTACTOR

 

 

 

 

 

PRESSURE

 

 

 

 

K1

(90)

CUT-OUT

(95)

COIL

(65)

C4

 

 

 

 

 

 

 

 

 

 

 

POTENTIAL

 

10 AMP

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

GEARMOTOR

 

(25)

FUSE

 

 

 

 

 

 

 

 

 

 

 

(46)

 

 

(21)

 

(43)

RUN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

(22)

 

 

CAPACITOR

 

RELAY K4

 

 

 

 

 

 

 

K3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WATER FLOAT

 

 

 

 

 

 

 

 

 

VALVE COIL

 

 

 

 

 

 

(52)

 

 

 

 

 

 

 

(56)

 

 

 

 

 

 

 

 

 

 

 

 

C4

(22)

 

 

 

 

 

 

 

 

 

 

POTENTIAL

 

 

 

 

 

 

 

 

 

 

 

RELAY

(51)

 

 

 

 

(55)

 

 

 

 

 

 

 

 

 

 

 

 

FAN MOTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

DUMP VALVE COIL

(AIR-COOLED ONLY)

CONTACTOR

 

 

 

 

 

 

 

 

 

 

FAN CYCLE

 

 

 

 

 

COIL

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

 

RUN CAPACITOR

 

 

 

 

 

 

 

 

 

 

(41)

 

L1

T1

 

 

 

 

 

 

 

 

 

 

 

 

 

C

COMPRESSOR

 

 

 

 

 

 

 

 

 

C4

 

 

CONTACTOR

 

OVERLOAD

 

 

 

 

 

R

(45)

POTENTIAL

 

 

CONTACTS

 

 

 

S

 

 

(49)

C5

C2

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(61)

C4

 

 

 

 

 

 

 

C1

RUN

 

 

POTENTIAL

 

 

 

 

 

 

(31)

CAPACITOR

(62)

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

START

 

 

SV3123

 

 

 

 

 

 

 

CAPACITOR

 

 

 

1A. Water Flush (45 Seconds)

 

 

 

Toggle Switch

 

ICE

 

 

 

Bin Level Probe

 

Open (No Ice Contact)

 

 

 

Control Board Relays

 

 

 

 

 

 

#1

Contactor Coil

 

Open / OFF

 

 

 

 

 

Compressor

 

OFF

 

 

 

 

 

Condenser Fan Motor

 

OFF

 

 

 

 

#2

Dump Valve

 

ON

 

 

 

 

#3

Gear Motor

 

ON

 

 

 

 

#4

Water Float Valve Solenoid Coil

 

OFF

 

 

 

 

6-10

Revised 8/2003

Part No. 80-1214-3

 

 

Page 71 Page 73
Image 72
Page 71 Page 73
Contents Flake Models QF0400/QF0800 QF2200/QF2300 Chiplet Models QC0700Service Manual Flake / Chiplet Model Ice MachinesSafety Notices Procedural NoticesRead These Before Proceeding PERSONAL INJURY POTENTIALTable of Contents Section Installation InstructionsAccessories Manitowoc Cleaner and SanitizerTable of Contents continued Section MaintenanceExterior Cleaning Preventative Maintenance Cleaning ProcedureTable of Contents continued Section Section TroubleshootingReset Procedure SafeGuard Indicator LightsICE/OFF/CLEAN Toggle Switch Compressor Electrical DiagnosticsSection Refrigeration System 6-46Table of Contents continued Table of Contents continued Section General Information How to Read a Model NumberAccessories MANITOWOC CLEANER AND SANITIZERGeneral Information SectionModel/Serial Number Location Model/Serial Number LocationOwner Warranty Registration Card Warranty CoverageGENERAL PARTSTHIS PAGE INTENTIONALLY LEFT BLANK Section Installation Instructions Ice Machine DimensionsQF400 AIR COOLED ICE MACHINE QC700/QF800 AIR COOLED ICE MACHINEInstallation Instructions Location of Ice Machine Ice Machine Head Section Clearance RequirementsIce Machine Heat of Rejection Location of Remote Condensing UnitLeveling the Ice Storage Bin Condenser Air BaffleQC700/QF800 Air-CooledIce Machines Only Air BaffleElectrical Service VOLTAGEFUSE/CIRCUIT BREAKER MINIMUM CIRCUIT AMPACITYElectrical Requirements For United Kingdom OnlyIce Machine Head Section Remote Condensing UnitQF2200 ICE MACHINE HEAD SECTION 115/60/1 QF2300 ICE MACHINE HEAD SECTION115/60/1 230/1/50Remote Electrical Wiring Connections RFC2385 REMOTE CONDENSING UNIT 208-230/1/60RFC2085 REMOTE CONDENSING UNIT 208-230/1/60 Ice Machine Head Section Water Supply and Drains Cooling Tower Applications Water-CooledModelsPOTABLE WATER SUPPLY POTABLE WATER INLET LINESTypical Water Supply Drain Installation 2-10WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS Refrigeration System Installation 2-11QF2200/RFC2085 AND QF2300/RFC2385 ONLY USAGE WITH NON-MANITOWOC CONDENSING UNITSRefrigeration Line Set Installation 2-12Step 1 Verify Ice Machine and Remote Condensing Unit Locations Are Within GuidelinesService Loop 2-13C. SUCTION LINE OIL TRAPS Manitowoc S-TrapKitStep 4 Connecting the line set 2-142-15 Open Receiver Service Valve 2-16Torque Value’s Step 7 Leak Check The Refrigeration System2-17 Suction Shut Off Valve Insulation2-18 Section Ice Machine Operation Component IdentificationICE MACHINE HEAD SECTION QC700/QF800 QF400Ice Machine Operation SectionQF2300 RFC2385 Remote Condensing UnitOperational Checks GENERALWATER LEVEL CHECK Interior Cleaning and Sanitizing Cleaning/Sanitizing ProcedureHeavily Scaled Cleaning Procedure EXTERIOR CLEANINGCLEANING THE CONDENSER Air-CooledCondenserSelf-Contained Air-CooledFilter Straighten Bent Condenser FinsMANITOWOC’S CLEANING TECHNOLOGY PREVENTATIVE MAINTENANCE CLEANING PROCEDURE QF400 CLEANING/SANITIZING PROCEDURE QC700/QF800/QF2300 CLEANING/SANITIZING PROCEDURE QF400 3-10 part numberonly REMOVAL OF PARTS FOR CLEANING/SANITIZING 3-113-12 Water Level Probe RemovalQC700/QF800 Water Reservoir Cover Removal3-13 QF2300 ShownFloat Valve Removal 3-14 Water Reservoir RemovalIce Diverter Removal 3-15 Ice Chute Removal3-16 Bin Door RemovalCabinet Removal Dump Valve Disassembly 3-17Water Dump Valve Removal from Service/Winterization 3-18WATER COOLED CONDENSING UNIT Pry Open the Water Regulating ValveSection Ice Machine Sequence of Operation QF400/QC700/QF800PRIOR TO START-UP INITIAL START-UP1A. FlushIce Machine Sequence of Operation QF2200Remote Condensing Unit 2. Freeze Remote Condensing Unit 3. Automatic Shut-OffQF2300 THIS PAGE INTENTIONALLY LEFT BLANK Section Troubleshooting ChecklistTroubleshooting Safeguard FeatureRESET PROCEDURE SAFEGUARD INDICATOR LIGHTSTroubleshooting Analyzing Why SafeGuards May Stop the Ice MachineSAFEGUARD MODES No Water 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 Energized Parts Charts Wiring Diagram Sequence of OperationL1 1B. WATER FILL Freeze Cycle Automatic Shut-Off 3B. DRAIN EVAPORATOR Section 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 Diagrams WIRING DIAGRAM LEGEND6-36 6-37 ICE MACHINE HEAD SECTION QF400115V/60Hz/1Ph - 230V/50Hz/1Ph 6-38 QC700/QF800 115V/60Hz/1Ph - 230V/50Hz/1Ph6-39 COMPRESSOR SECTION QC700/QF800115/60/1 - 230/50/1 6-40 ICE MACHINE HEAD SECTION QF22006-41 RFC2085 230V/60HZ/1PH - 230/50/16-42 RFC2085 208-230V/60HZ/3PHDiagram Shown During Freeze Cycle 6-43ICE MACHINE HEAD SECTION 6-44 RFC2385 230V/60HZ/1PH - 230/50/16-45 RFC2385 208-230V/60HZ/3PHControl Board 6-46Component Specifications and Diagnostics ICE/OFF/CLEAN TOGGLE SWITCH FunctionSpecifications Check Procedure6-48 6-49 MOTOR SPEED SENSOR FunctionFailure Modes 6-50 WATER LEVEL PROBES Function6-51 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 6-56 FAN CYCLE CONTROL FunctionCOMPRESSOR ELECTRICAL DIAGNOSTICS 6-57Check Resistance Ohm Values Check Motor Windings to Ground6-58 Diagnosing Start ComponentsRelay Operation Check Diagnosing An Ice Machine That Will Not Run Diagnosing A Condensing Unit That Will Not Run6-59 QF400/QC700/QF800/QF2200/QF23006-60 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 EQUALIZATION VALVE QF2300 General Normal OperationAnalysis WATER REGULATING VALVE WATER-COOLEDMODELS ONLY7-10 HEADMASTER CONTROL VALVE FunctionFREEZE CYCLE OPERATION Air-CooledIce Machines Air-CooledCondensing Units7-11 QF400 SELF-CONTAINEDAIR COOLED24 Hour Ice Production Operating Pressures7-12 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 Refrigerant Recovery/Evacuation and Recharging REFRIGERANT RECOVERY/EVACUATIONNormal Self-ContainedModel Procedures Recovery/Evacuation ConnectionsRecovery/Evacuation QF2200/QF2300 7-16Connections Self-ContainedModel Charging Procedures 7-17Charging Connections Remote Charging Procedures QF2200/QF2300 7-18SYSTEM 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 SUCTION CLEAN-UPFILTER/DRIER QF400/QC700/QF800 7-23FILTER-DRIERS Liquid Line Filter Drier Remote ModelsREFRIGERANT DEFINITIONS Recover New Product Specifications7-24 RecycleRevised 8/2003 Attend A Manitowoc Factory Service School 3.Recovered or Recycled Refrigerant 7-25REFRIGERANT RE-USEPOLICY 1.New Refrigerant7-26
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