Manitowoc Ice QF0800, QF2300, QC0700, QF0400 manual Water Dump Valve, Dump Valve Disassembly

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Section 3

Ice Machine Operation

 

 

Water Dump Valve

The water dump valve normally does not require removal for cleaning. To determine if removal is necessary:

1.Locate the water dump valve.

2.Set the toggle switch to ICE.

3.While the ice machine is in the freeze mode, check the water trough to determine if the dump valve is leaking. If there is no or little water in the water trough (during the freeze cycle) the dump valve is leaking.

A.If the dump valve is leaking, remove, disassemble and clean it.

B.If the dump valve is not leaking, do not remove it. Instead, follow the “Ice Machine Cleaning Procedure”.

Follow the procedure below to remove the dump valve.

Important

The plunger and the inside of the enclosing tube must be completely dry before assembly.

NOTE: During cleaning, do not stretch or damage the spring.

6.Remove the tubing from the dump valve by twisting the clamps off.

7.Remove the valve body, twist off.

COIL

SPRING

!Warning

NYLON GASKET

PLUNGER

Disconnect the electric power to the ice machine at the electric service switch box and turn off the water supply before proceeding.

1.If so equipped, remove the water dump valve shield from its mounting bracket.

2.Leaving the wires attached, twist coil and rotate it counter-clockwise1/4 turn.

3.Lift the coil assembly off the valve body.

4.Remove the spring, plunger, and nylon gasket from the valve body.

5.

NOTE: At this point, the water dump valve can easily be cleaned. If complete removal is desired, continue with step 5.

DIAPHRAM

MOUNTING BRACKET

VALVE BODY

Dump Valve Disassembly

Part Number 000002688

3-17

Image 49
Contents Installation Use and Care Manual Personal Injury Potential Read These Before ProceedingTable of Contents Section Ice Machine Operation Table of ContentsSection Before Calling Service Table of Contents Section Ice Machine Sequence of OperationTable of Contents Accessories How to Read a Model NumberModel Numbers Remote Condensing UnitModel/Serial Number Location Ice Machine Model Number General Information Section Model/Serial Number LocationCommercial Warranty Coverage General Information Section QF400 AIR Cooled ICE Machine Ice Machine DimensionsQC700/QF800 Water Cooled ICE Machine QC700/QF800 AIR Cooled ICE MachineQF2300 Head Section and RFC2385 Remote Condensing Unit Inch 56 CM ICE Storage Bins Inch 130 CM ICE Storage Bins Bin Model Dimension a Dimension BInch 76 CM ICE Storage Bins B970Inch 76 CM Bin Model Dimension a Width Dimension B HeightIce Machine Head Section Clearance Requirements Section Installation Instructions Location of Ice MachineIce Machine Heat of Rejection Location of Remote Condensing UnitLeveling Leg and Foot Condenser Air BaffleQC700/QF800 Air-Cooled Ice Machines Only Air BaffleSection Installation Instructions Electrical Service For United Kingdom Only Installation Instructions Section Electrical RequirementsIce Machine Head Section QC700C/QF800C ICE Machine Head /1/50 QC700C/QF800C ICE Machine Head /1/60 or 208-230/1/60QF2300 ICE Machine Head /60/1 RFC2385 Remote Condensing Unit 208-230/1/60 Cooling Tower Applications Water-Cooled Models Section Installation Instructions Water Supply and DrainsPotable Water Supply Potable Water Inlet LinesTypical Water Supply Drain Installation Installation Instructions SectionWater Supply and Drain Line SIZING/CONNECTIONS Usage with NON-MANITOWOC Condensing Units QF2300/RFC2385 onlyFactory Equipment Refrigeration Amounts Line SET Rise or Drop Line SET LengthRoof/Wall Penetration Route Refrigeration TubingSupplied service loop is an installation requirement Service LoopSuction Line OIL Traps Manitowoc S-Trap KitConnect The Line Set To The Ice Machine Head Section Connecting the line setConnect The Line Set To The Remote Condensing Unit Torque Value’s Open The Valves Prior To Starting The Ice MachineLeak Check The Refrigeration System Open Receiver Service ValveInsulation Requirements Suction Liquid Min. Insulation LineSuction Shut Off Valve Insulation Typical Remote System Installation Remote AIR-COOLED only Section Installation Instructions Installation ChecklistPotential Personal Injury Situation ICE Machine Head Section Component IdentificationQC700/QF800 QF400QF2300 Ice Machine Operation SectionWater Level Check Section Ice Machine Operation Operational ChecksHeavily Scaled Cleaning Procedure Cleaning/Sanitizing ProcedureExterior Cleaning Air-Cooled Condenser Cleaning the CondenserSelf-Contained Air-Cooled Filter Straighten Bent Condenser FinsModel Amount of Cleaner MANITOWOC’S Cleaning TechnologyPreventative Maintenance Cleaning Procedure QF400 Amount of Water Amount of Cleaner CLEANING/SANITIZING Procedure QC700/QF800/QF2300Amount of Water Amount of Sanitizer CLEANING/SANITIZING Procedure QF400 Use Ice machine cleaner Mix Cleaner and WaterCleaner OnlySolution Type Removal of Parts for CLEANING/SANITIZINGMixed With QF2300 Water Reservoir Cover Removal Water Level Probe RemovalQC700/QF800 Shown Water Level Probe RemovalQF2300 Shown Float Valve Removal QC700/QF800 Shown Ice Diverter Removal Water Reservoir RemovalIce Chute Removal Cabinet Removal Bin Door RemovalWater Dump Valve Dump Valve DisassemblyPry Open the Water Regulating Valve Water Cooled Condensing UnitPrior to START-UP QF400/QC700/QF800Flush Sequence in the ICE Position Ice Machine Sequence of Operation Section QF2300 Problem Possible Cause To Correct ChecklistReset Procedure Safeguard Indicator Lights Before Calling Service Section Safeguard FeatureStandby Mode No Water Checklist Analyzing Why SafeGuards May Stop the Ice MachineSafeguard Modes Possible Problem List Corrective Action ListGear Motor Speed Checklist Before Calling Service SectionGear Motor Speed Temperature Sensor Checklist Temperature is Too High or Low QF400/QC700/QF800This page Intentionally Left Blank Page Manitowoc ICE, INC
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