Manitowoc Ice QF2300, QF0800 Electrical System, Section, 6-48, Bin Level Probe Closed or Shorted

Page 110
6-48

Electrical System

Section 6

 

 

2.Disconnect bin level probe from control board and check continuity (ohms) from the female connector to the bin level probe.

 

CHECK FOR CONTINUITY

 

CONNECTOR TO GROUND.

 

 

Continuity

Cause

 

 

No

Replace bin level probe.

 

 

Yes

Go to step 3.

 

 

3.Remove bin level probe from ice chute and clean with Manitowoc Ice Machine Cleaner and Sanitizer. Rinse well with fresh water, reinstall and monitor the Bin light.

Control Board

Cause

Bin Level Light

 

 

 

Off

Bin level probe

needed cleaning.

 

 

 

Flashes

Go to step 4.

 

 

4.Disconnect bin level probe wire from the control board and place a jumper from the bin level terminal to ground.

Control Board

Cause

Bin Level Light

 

 

 

On

Replace bin level probe.

 

 

 

Reconfirm control board is not

Flashes

in an 8-minute lockout. Repeat

steps 1 – 4, then replace

 

 

control board.

 

 

Bin Level Probe Closed or Shorted

The ice machine will not start and the Bin Level light is energized continuously.

1.Verify ice is not in contact with bin level probe.

2.Disconnect bin level probe wire from the control board.

 

DISCONNECT BIN LEVEL PROBE

 

FROM CONTROL BOARD.

 

 

Control Board

Cause

Bin Level Light

 

 

 

Off

Clean bin level probe.

 

 

On

Replace control board.

 

 

6-48

Revised 8/2003

Part No. 80-1214-3

 

 

Image 110
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 230/1/50RFC2085 REMOTE CONDENSING UNIT 208-230/1/60 Remote Electrical Wiring ConnectionsRFC2385 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 LINESWATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS Typical Water Supply Drain Installation2-10 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 UnitWATER LEVEL CHECK Operational ChecksGENERAL 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 only 3-10part number REMOVAL OF PARTS FOR CLEANING/SANITIZING 3-11QC700/QF800 3-12Water Level Probe Removal Water Reservoir Cover RemovalFloat Valve Removal 3-13QF2300 Shown Ice Diverter Removal 3-14Water Reservoir Removal 3-15 Ice Chute RemovalCabinet Removal 3-16Bin Door Removal Water Dump Valve Dump Valve Disassembly3-17 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 Automatic Shut-Off 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 6-36 Wiring DiagramsWIRING DIAGRAM LEGEND 115V/60Hz/1Ph - 230V/50Hz/1Ph 6-37ICE MACHINE HEAD SECTION QF400 6-38 QC700/QF800 115V/60Hz/1Ph - 230V/50Hz/1Ph115/60/1 - 230/50/1 6-39COMPRESSOR SECTION QC700/QF800 6-40 ICE MACHINE HEAD SECTION QF22006-41 RFC2085 230V/60HZ/1PH - 230/50/16-42 RFC2085 208-230V/60HZ/3PHICE MACHINE HEAD SECTION Diagram Shown During Freeze Cycle6-43 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 Failure Modes 6-49MOTOR SPEED SENSOR Function 6-50 WATER LEVEL PROBES Function6-51 TEMPERATURE/RESISTANCE CHART 6-52TEMPERATURE SENSOR Function MAIN FUSE Function 6-53CONTROL BOARD RELAYS Function WATER LEVEL CHECK 6-54WATER FLOAT VALVE Function Function 6-55HIGH PRESSURE CONTROL HPCO Function 6-56 FAN CYCLE CONTROL FunctionCheck Resistance Ohm Values COMPRESSOR ELECTRICAL DIAGNOSTICS6-57 Check Motor Windings to GroundRelay Operation Check 6-58Diagnosing Start Components 6-59 Diagnosing An Ice Machine That Will Not RunDiagnosing A Condensing Unit That Will Not Run QF400/QC700/QF800/QF2200/QF23006-60 SV3082 Section Refrigeration SystemTubing Schematic Condensing Unit Refrigeration SystemQF2200/RFC2085 QF2300/RFC2385 Refrigeration System Diagnostics Ice Production Check BEFORE BEGINNING SERVICEICE PRODUCTION/QUALITY CHECK Quality Check SAFEGUARDS INSTALLATION/VISUAL INSPECTION CHECKLISTWATER SYSTEM CHECKLIST Discharge Pressure Low Checklist ProcedureDischarge Pressure High Checklist ANALYZING SUCTION PRESSURE Suction Pressure High ChecklistSuction Pressure Low Checklist 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-CONTAINEDWATER COOLED 7-12QC700 SELF-CONTAINEDAIR COOLED QF800 SELF-CONTAINEDWATER COOLED 7-13QF800 SELF-CONTAINEDAIR COOLED QF2300/RFC2385 REMOTE AIR COOLED 7-14QF2200/RFC2085 REMOTE AIR COOLED Normal Self-ContainedModel Procedures Refrigerant Recovery/Evacuation and RechargingREFRIGERANT RECOVERY/EVACUATION Recovery/Evacuation ConnectionsConnections Recovery/Evacuation QF2200/QF23007-16 Charging Connections Self-ContainedModel Charging Procedures7-17 Remote Charging Procedures QF2200/QF2300 7-18Determining Severity Of Contamination SYSTEM CONTAMINATION CLEAN-UP General7-19 7-20 Mild System Contamination Cleanup ProcedureSevere System Contamination Cleanup Procedure 7-21 SV1406 Using Pinch-OffTool7-22 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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