Hoshizaki KML-200MAE, KML-200MWE service manual

Page 46

VI. CLEANING AND MAINTENANCE INSTRUCTIONS 1. PREPARING THE ICEMAKER FOR LONG STORAGE

CAUTION

When shutting off the icemaker for an extended time, drain out all water from the water line and remove the ice from the Storage Bin. The Storage Bin should be cleaned and dried. Drain the icemaker to prevent damage to the water supply line at sub-freezing temperatures, using air or carbon dioxide. Shut off the icemaker until the proper ambient temperature is resumed.

When the icemaker is not used for two or three days, it is sufficient to only move the Control Switch to the “OFF” position, unless the icemaker will be at sub-freezing temperatures.

[1]On water-cooled model only, first remove the water from the water-cooled condenser:

1)Turn off the power supply.

2)Remove the Front Panel.

3)Move the Control Switch, on the Control Box, to the “OFF” position.

4)Wait 3 minutes.

5)Move the Control Switch to the “ICE” position.

6)Replace the Front Panel and turn on the power supply.

7)Allow 5 minutes for the icemaker to fill with water and the Water Pump to start operating.

8)Close the Water-cooled Condenser Water Supply Line Shut-off Valve. See Fig. 4.

9)Open the Drain Valve for the water-cooled condenser water supply line.

10)Allow the line to drain by gravity.

11)Quickly attach compressed air or carbon dioxide supply to the Condenser Water Line Drain Valve.

12)Blow the water-cooled Condenser out using compressed air or carbon dioxide until water stops coming out.

46

Image 46
Contents KML-200MAE KML-200MWE Foreword Contents Refrigerant Recovery Evacuation and Recharge Specifications 1. KML-200MAE KML-200MWE II. General Information Construction KML-200MAEKML-200MWE SOLID-STATE Control Controller BoardController Board Page Alpine C/Alpine Board Sequence 1st Cycle Important Water Valve opening is limited to 6 minutesLine Valve 2nd Cycle and after with pump drain2nd Cycle and after with no pump drain Controls and Adjustments Alpine/Alpine C Board OFF KML-200MWESetting Time Setting Frequency Checking Controller Board Test Program of Controller Board Control Switch SwitchesService Switch III. Technical Information KML-200MWE Wiring Diagrams KML-200MAE, KML-200MWETiming Chart If Float Sw. is OFFTo Freeze Cycle From Freeze Cycle Performance Data Heat of Rejection from Condenser IV. Service Diagnosis No ICE Production Problem Possible Cause RemedyController Board Clean Evaporator is Frozen UP LOW ICE ProductionAbnormal ICE OthersRefrigerant Recovery Evacuation and RechargeRemoval and Replacement of Compressor Important BrazingPage Removal and Replacement of Drier Removal and Replacement of Expansion ValveRemoval and Replacement of HOT GAS Valve and Line Valve Page Removal and Replacement of Evaporator Important Page Adjustment of Water Regulating Valve WATER-COOLED Model only Removal and Replacement of Thermistor Caution Removal and Replacement of FAN Motor Removal and Replacement of Water Valve Removal and Replacement of Pump MotorRemoval and Replacement of Spray Tube Page Page Cleaning Page Sanitizing Procedure Following Cleaning Procedure Maintenance