Manitowoc Ice QF0400, QF2300, QF0800 Section, Electrical System, 6-31, RFC2385, Freeze Cycle

Page 93
6-31

Section 6

Electrical System

 

 

RFC2385

L1

Freeze Cycle

2. FREEZE

The compressor and condenser fan motor remain energized during the entire Freeze Cycle.

GROUND

COMPRESSOR

L2

 

 

CRANKCASE

 

(94)

HEATER

(95)

C1

 

C2

(96)

(85)

(74)

 

 

 

LOW PRESSURE

CONTACTOR

HIGH PRESSURE

COIL

CUT-OUT

CUT-OUT

 

CONTACTOR

FAN MOTOR

CONTACTOR

CONTACTS

CONTACTS

 

RUN

 

 

CAPACITOR

 

 

 

 

(49)

 

(50)

 

 

 

 

 

 

COMPRESSOR

 

 

RUN

 

 

 

CAPACITOR

 

C

S

(47)

 

 

 

 

 

 

(46)

 

R

 

 

 

(45)

OVERLOAD

 

 

 

 

(48)

 

 

 

(44)

 

 

 

 

 

 

 

5

2

1

 

(43)

 

RELAY

START

 

 

CAPACITOR

SV2122

2. Freeze (Until Ice Contacts Bin Level Probe for 30 Continuous Seconds)

High Pressure Control

Low Pressure Control

Contactor Coil

Compressor

Condenser Fan Motor

CLOSED

CLOSED

CLOSED / ON

ON

ON

Part No. 80-1214-3

Revised 8/2003

6-31

 

 

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Image 93
Page 92 Page 94
Contents Chiplet Models QC0700 Flake Models QF0400/QF0800 QF2200/QF2300Service Manual Flake / Chiplet Model Ice MachinesProcedural Notices Safety NoticesRead These Before Proceeding PERSONAL INJURY POTENTIALSection Installation Instructions Table of ContentsAccessories Manitowoc Cleaner and SanitizerSection Maintenance Table of Contents continuedExterior Cleaning Preventative Maintenance Cleaning ProcedureSection Troubleshooting Table of Contents continued SectionReset Procedure SafeGuard Indicator LightsCompressor Electrical Diagnostics ICE/OFF/CLEAN Toggle SwitchSection Refrigeration System 6-46Table of Contents continued Revised 8/2003 How to Read a Model Number Section General InformationAccessories MANITOWOC CLEANER AND SANITIZERSection General InformationModel/Serial Number Location Model/Serial Number LocationWarranty Coverage Owner Warranty Registration CardGENERAL PARTSTHIS PAGE INTENTIONALLY LEFT BLANK Ice Machine Dimensions Section Installation InstructionsQF400 AIR COOLED ICE MACHINE QC700/QF800 AIR COOLED ICE MACHINEInstallation Instructions Ice Machine Head Section Clearance Requirements Location of Ice MachineIce Machine Heat of Rejection Location of Remote Condensing UnitCondenser Air Baffle Leveling the Ice Storage BinQC700/QF800 Air-CooledIce Machines Only Air BaffleVOLTAGE Electrical ServiceFUSE/CIRCUIT BREAKER MINIMUM CIRCUIT AMPACITYFor United Kingdom Only Electrical RequirementsIce Machine Head Section Remote Condensing UnitQF2300 ICE MACHINE HEAD SECTION QF2200 ICE MACHINE HEAD SECTION 115/60/1115/60/1 230/1/50Remote Electrical Wiring Connections RFC2385 REMOTE CONDENSING UNIT 208-230/1/60RFC2085 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 LINESTypical Water Supply Drain Installation 2-10WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS 2-11 Refrigeration System InstallationQF2200/RFC2085 AND QF2300/RFC2385 ONLY USAGE WITH NON-MANITOWOC CONDENSING UNITS2-12 Refrigeration Line Set InstallationStep 1 Verify Ice Machine and Remote Condensing Unit Locations Are Within Guidelines2-13 Service LoopC. SUCTION LINE OIL TRAPS Manitowoc S-TrapKit2-14 Step 4 Connecting the line set2-15 2-16 Open Receiver Service ValveTorque Value’s Step 7 Leak Check The Refrigeration SystemSuction Shut Off Valve Insulation 2-172-18 Component Identification Section Ice Machine OperationICE MACHINE HEAD SECTION QC700/QF800 QF400Section Ice Machine OperationQF2300 RFC2385 Remote Condensing UnitOperational Checks GENERALWATER LEVEL CHECK Cleaning/Sanitizing Procedure Interior Cleaning and SanitizingHeavily Scaled Cleaning Procedure EXTERIOR CLEANINGAir-CooledCondenser CLEANING THE CONDENSERSelf-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 3-11 REMOVAL OF PARTS FOR CLEANING/SANITIZINGWater Level Probe Removal 3-12QC700/QF800 Water Reservoir Cover Removal3-13 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 3-18 Removal from Service/WinterizationWATER COOLED CONDENSING UNIT Pry Open the Water Regulating ValveQF400/QC700/QF800 Section Ice Machine Sequence of OperationPRIOR TO START-UP INITIAL START-UP1A. FlushQF2200 Ice Machine Sequence of OperationRemote Condensing Unit 2. Freeze Remote Condensing Unit 3. Automatic Shut-OffQF2300 THIS PAGE INTENTIONALLY LEFT BLANK Checklist Section TroubleshootingSafeguard Feature TroubleshootingRESET PROCEDURE SAFEGUARD INDICATOR LIGHTSAnalyzing Why SafeGuards May Stop the Ice Machine TroubleshootingSAFEGUARD MODES No Water No Water ChecklistGear 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 Section 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 BoardICE/OFF/CLEAN TOGGLE SWITCH Function Component Specifications and DiagnosticsSpecifications Check Procedure6-48 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 6-566-57 COMPRESSOR ELECTRICAL DIAGNOSTICSCheck Resistance Ohm Values Check Motor Windings to Ground6-58 Diagnosing Start ComponentsRelay Operation Check Diagnosing A Condensing Unit That Will Not Run Diagnosing An Ice Machine 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 Normal Operation EQUALIZATION VALVE QF2300 GeneralAnalysis WATER REGULATING VALVE WATER-COOLEDMODELS ONLYHEADMASTER CONTROL VALVE Function 7-10FREEZE CYCLE OPERATION Air-CooledIce Machines Air-CooledCondensing UnitsQF400 SELF-CONTAINEDAIR COOLED 7-1124 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 Refrigerant Recovery/Evacuation and RechargingNormal Self-ContainedModel Procedures Recovery/Evacuation ConnectionsRecovery/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 7-23 SUCTION CLEAN-UPFILTER/DRIER QF400/QC700/QF800FILTER-DRIERS Liquid Line Filter Drier Remote ModelsNew Product Specifications REFRIGERANT DEFINITIONS Recover7-24 RecycleRevised 8/2003 Attend A Manitowoc Factory Service School 7-25 3.Recovered or Recycled RefrigerantREFRIGERANT RE-USEPOLICY 1.New Refrigerant7-26
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