Manitowoc Ice QF2300, QF0800, QC0700, QF0400, QF2200 Refrigeration System, Section, 7-18

Page 140
Remote Charging Procedures (QF2200/QF2300)

Refrigeration System

Section 7

 

 

Remote Charging Procedures (QF2200/QF2300)

1.Be sure the toggle switch is in the OFF position.

2.Close the vacuum pump valve and the low side manifold gauge valve.

3.Open the refrigerant cylinder and add the proper refrigerant charge (shown on nameplate) into the system high side (receiver service valve and discharge line quick-connect fitting).

4.If the high side does not take the entire charge, close the high side on the manifold gauge set. Start the ice machine and add the remaining charge through the suction filter low side service port. Compressor damage can result.

5.Ensure all vapor in charging hoses is drawn into the low side of the system, then disconnect the manifold gauges.

6.Run the ice machine in freeze cycle.

7.Close the receiver service valve in the ice machine head section.

8.Disconnect the manifold gauge set from the liquid line shut-off valve.

9.Open the high and low side valves on the manifold gauge set. Any refrigerant in the lines will be pulled into the low side of the system.

10.Allow the pressures to equalize while the ice machine is in the freeze cycle.

11.Disconnect the manifold gauge set from the suction line shut-off valve.

12.Remove the hoses from the ice machine and install the caps.

NOTE: Check for refrigerant leaks after all valve caps have been installed.

7-18

Revised 8/2003

Part No. 80-1214-3

 

 

Image 140
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 SECTION115/60/1 230/1/50RFC2085 REMOTE CONDENSING UNIT 208-230/1/60 Remote Electrical Wiring ConnectionsRFC2385 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 LINESWATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS Typical Water Supply Drain Installation2-10 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 UnitWATER LEVEL CHECK Operational ChecksGENERAL 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 only 3-10part number REMOVAL OF PARTS FOR CLEANING/SANITIZING 3-113-12 Water Level Probe RemovalQC700/QF800 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 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 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 6-46Component Specifications and Diagnostics ICE/OFF/CLEAN TOGGLE SWITCH FunctionSpecifications 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 FunctionCOMPRESSOR ELECTRICAL DIAGNOSTICS 6-57Check Resistance Ohm Values Check Motor Windings to GroundRelay Operation Check 6-58Diagnosing Start Components Diagnosing An Ice Machine That Will Not Run Diagnosing A Condensing Unit That Will Not Run6-59 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 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 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 Refrigerant Recovery/Evacuation and Recharging REFRIGERANT RECOVERY/EVACUATIONNormal Self-ContainedModel Procedures 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 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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