Manitowoc Ice Q manual Additional Component Removal, Water Inlet Valve, Water Dump Valve

Page 46

Maintenance

Section 4

 

 

ADDITIONAL COMPONENT REMOVAL

The following components may be removed for easier access in some installations or they may need to be removed and cleaned to correct an operational problem.

Water Inlet Valve

The water inlet valve normally does not require removal for cleaning. Refer to Section 5 for a list of causes for “No Water Entering Water Trough” or “Water Overflows Water Trough.

1.When the ice machine is off, the water inlet valve must completely stop water flow into the machine.

2.When the ice machine is on, the water inlet valve must allow the proper water flow through it. Set the toggle switch to ON. Watch for water flow into the ice machine. If the water flow is slow or only trickles into the ice machine, refer to Section 5.

Follow the procedure below to remove the water inlet valve.

!Warning

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

1.Remove the 1/4” hex head screws.

2.Remove, clean, and install the filter screen.

FILTER

ACCESS FILTER

SCREWS SCREEN

LOCATION

WATER

INLET

VALVE

Water Dump Valve

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

1.Set the toggle switch to ICE.

2.Verify the water trough fills with water at the beginning of the freeze cycle.

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.

!Warning

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

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

2.Lift the coil assembly off the valve body.

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

NOTE: At this point, the water dump valve can easily be cleaned. If complete removal is desired, continue with step 4.

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

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

5.Twist the valve body to remove from mounting bracket.

4-6

Part Number 000001114

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Contents Model Ice Machines Read These Before Proceeding Personnel Injury PotentialTable of Contents Table of Contents Section Before Calling for Service Section MaintenanceSection Ice Machine Operation Table of Contents Ice Cube Sizes How to Read a Model NumberModel Numbers Personal Injury PotentialGeneral Information Section Accessories Section General Information Model/Serial Number Location Model/Serial Number LocationGeneral Information Section Warranty Warranty CoverageGeneral Ice Machine DimensionsIce Machine Dimension H Q320/Q370/Q420 ICE MachinesInstallation Instructions Section Q280 Q1000 ICE MachinesS320/S420 ICE Storage Bins Ice Storage Bin DimensionsBin Model Dimension a Dimension B S170/S400/S570 ICE Storage BinsBin Model Dimension a Width Dimension B Height SV1297 Stacking Two Ice Machines on a Single Storage Bin Installation Instructions Section Location of Ice MachineIce Machine Heat of Rejection Leveling Leg and Foot Air-Cooled BaffleAir Baffle Voltage Installation Instructions Section Electrical ServiceGround Fault Circuit Interupter FUSE/CIRCUIT BreakerQ320/370/420 Ice Machines Self Contained ICE Machine 208-230/3/60 For United Kingdom OnlySelf Contained ICE Machine 115/1/60 or 208-230/1/60 Self Contained ICE Machine 230/1/50Ground To Separate Water Inlet Lines Cooling Tower Applications Water-Cooled ModelsWater Supply Drain ConnectionsCondenser Typical Water Supply Drain InstallationWater Supply and Drain Line SIZING/CONNECTIONS Bin DrainTypical Additional Refrigerant Label Remote ICE Machines Refrigerant ChargeGuidelines for Routing Line Sets Routing Line SetsCalculating Remote Condenser Installation Distances Backseating the Receiver Service Valve Connecting a Line SETRemote Receiver Service Valve Lengthening or Reducing Line SET LengthsHead Pressure Control Valve WarrantyInternal Condenser Volume FAN MotorNON-MANITOWOC MULTI-CIRCUIT Condenser Sizing Chart Typical Single Circuit Remote Condenser InstallationInstallation Instructions Section Installation Check List Additional Checks for Remote ModelsAuCS Automatic Cleaning System Potential Personal Injury SituationThis page Intentionally Left Blank Component Identification Component Identification Typical Q450 ShownRefrigeration System Start-Up Initial START-UP or START-UP After Automatic SHUT-OFFWater Purge Freeze Sequence 3. PrechillHarvest Harvest Sequence 5. Water PurgeAutomatic SHUT-OFF 7. Automatic Shut-Off Freeze Sequence Typical Q450 Shown Section Ice Machine Operation Water Level Ice Machine Operation Section Operational ChecksICE Thickness Check 10. Water Purge Adjustment Harvest Sequence Water PurgeIce Machine Operation Section Model Amount of Cleaner Interior Cleaning and SanitizingCleaning Procedure Remove the water curtainMaintenance Section Remove the water level probe Remove the white vinyl water distribution tubingRemove the water pump Water Pump RemovalSanitizer Mix a solution of sanitizer and warm waterSolution Type Oz 120 ml sanitizerSolution Type Water Mixed With Sanitizer Water Inlet Valve Additional Component RemovalWater Dump Valve Dump Valve Disassembly Exterior Cleaning Maintenance Section Ice Machine InspectionCleaning the Condenser AlphaSan Water-Cooled Condenser Water Regulating ValveStraighten Bent Condenser Fins WATER-COOLED ICE Machines Maintenance Section Removal from Service/WinterizationSELF-CONTAINED AIR-COOLED ICE Machines Pry Open the Water Regulating ValveChecklist Problem Possible Cause To CorrectBefore Calling for Service Section Safety Limit FeatureSection Before Calling for Service Before Calling for Service Section Page Manitowoc ICE, INC
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Q specifications

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