Manitowoc Ice QF2300, QF0800, QC0700, QF0400 Section, Electrical System, 6-13, Automatic Shut-Off

Page 75
6-13

Section 6

Electrical System

 

 

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 compressor de-energizes. To allow excess ice to run out, the gear motor and the water float valve solenoid remain energized for an additional 45 seconds, then de-energize.

L2 (N)

GROUND

 

 

 

 

 

 

 

 

 

 

 

(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

 

 

SV3126

 

 

 

 

 

 

 

CAPACITOR

 

 

 

3A. Ice Run Out (45 Seconds)

 

 

 

Toggle Switch

 

ICE

 

 

 

Bin Level Probe

 

Closed (Ice Contacting Probe)

 

 

 

Control Board Relays

 

 

 

 

 

 

#1

Contactor Coil

 

Open / OFF

 

 

 

 

 

Compressor

 

OFF

 

 

 

 

 

Condenser Fan Motor

 

OFF

 

 

 

 

#2

Dump Valve

 

OFF

 

 

 

 

#3

Gear Motor

 

ON

 

 

 

 

#4

Water Float Valve Solenoid Coil

 

ON

 

 

 

 

Part No. 80-1214-3

Revised 8/2003

6-13

 

 

Page 74 Page 76
Image 75
Page 74 Page 76
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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