Manitowoc Ice QM45 Series Operational Checks, Siphon System Check, Water Level Check

Page 20

Ice Machine Operation

Section 3

Operational Checks

GENERAL

Your Manitowoc ice machine was factory-operated and adjusted before shipment. Normally, a newly installed ice machine does not require any adjustment.

To ensure proper operation, always follow these Operational Checks when starting the ice machine:

•for the first time

•after a prolonged out of service period

•after cleaning and sanitizing

Routine adjustments and maintenance procedures outlined in this manual are not covered by the warranty.

SIPHON SYSTEM

To reduce mineral build-up and cleaning frequency, the water in the sump trough must be purged during each harvest cycle.

When the water pump de-energizes the level in the water trough rises above the standpipe starting a siphon action. The siphon action stops when the water level in the sump trough drops below the siphon cap. When the siphon action stops, the float valve refills the water trough to the correct level.

Siphon System Check

Follow steps 1 through 6 under water level check.

 

 

 

 

 

 

 

 

 

 

 

SIPHON

 

 

 

 

 

 

 

WATER LEVEL

 

 

 

 

CAP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STANDPIPE

DRAIN

SV1689-2

WATER LEVEL CHECK

Check the water level while the ice machine is in the clean mode and the water pump is running. The correct water level is 1/4" (6.3mm) to 3/8″ (9.5mm) below the top of the standpipe.

SIPHON CAP

1/4” TO 3/8″(6.3 TO 9.5 MM) BELOW TOP OF

STANDPIPE

SV1689-2

Water Level

The float valve is factory-set for the proper water level. If adjustments are necessary:

1.Verify the ice machine is level (see page 2-3).

2.Remove the siphon cap from the standpipe.

3.Place the main ICE/OFF/WASH toggle switch to the WASH position, and wait until the float valve stops adding water.

4.Adjust the water level to 1/4" (6.3mm) to 3/8" (9.5mm) below the standpipe:

A Loosen the two screws on the float valve bracket.

B Raise or lower the float valve assembly as necessary, then tighten the screws.

5.Move the main ICE/OFF/ WASH toggle switch to the OFF position. The water level in the trough will rise above the standpipe and run down the drain.

6.Replace the siphon cap on the standpipe, and verify water level and siphon action by repeating steps 3 through 5.

3-4

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Contents Installation, Use, Care QM45 Series Ice MachinesThis manual covers the following model numbers Safety NoticesProcedural Notices Table of Contents Checklist Safety Limit Feature Safety Limits MaintenanceBefore Calling for Service Accessories Section General InformationSection General Information Model NumbersModel/Serial Number Location General Information SectionModel/Serial Number Location Owner Warranty Registration Card Commercial Warranty CoverageResidential Warranty Coverage WHO is Covered by this Limited WARRANTY?Section Installation Instructions Installation InstructionsIce Machine Dimensions SectionIce Machine Heat of Rejection Installation Instructions SectionLocation of Ice Machine Leveling Leg and Foot Leveling the Ice MachineLeveling LEGChecking Ice Machine Level This page Intentionally Left Blank Electrical Service For United Kingdom OnlyVoltage QM-45 ICE Machine FUSE/CIRCUIT BreakerWater Service/Drains Water SupplyWater Inlet Lines Drain ConnectionsTypical Water Supply Drain Installation Water Supply and Drain Line SIZING/CONNECTIONSPersonal Injury Potential Installation ChecklistBefore Starting the Ice Machine Component Identification Section Ice Machine OperationIce Machine Operation Initial START-UP or START-UP After Automatic SHUT-OFF Ice Machine Operation SectionIce Making Sequence of Operation QM45 SELF-CONTAINED AIR Cooled Models Operational Checks Siphon SystemSiphon System Check Water Level CheckICE Thickness Check Ice Thickness CheckThis page Intentionally Left Blank Section Maintenance Section MaintenanceInterior Cleaning and Sanitizing Cleaning and Sanitizing ProcedureMaintenance Section Disassembly Water Distribution Tube DisassemblyRemove the Water Distribution Tube Water Distribution Tube RemovalRemove the Ice Damper InstallationRemove the Water Trough Remove the Bin Door Model Exterior Cleaning Cleaning the CondenserICE Machine Inspection Air-Cooled CondenserRemoval from Service Winterization SELF-CONTAINED AIR-COOLED ICE MachinesChecklist Section Before Calling for ServiceBefore Calling for Service Before Calling for Service Section Safety Limit FeatureSafety Limits Safety Limit Stand-By ModeDetermining Which Safety Limit Stopped The Ice Machine Safety Limit NotesSafety Limit #1 Safety Limit #2Page Manitowoc ICE, INC
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