Hoshizaki KM-260BWH, KM-260BAH V. Removal And Replacement, Service For Refrigerant Lines

V. REMOVAL AND REPLACEMENT

WARNING

1.This unit should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, electric shock, serious injury, or fire.

2.Move the control switch to the “OFF” position and turn off the power supply before servicing.

3.CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after the unit is serviced. Make sure that none have fallen into the storage bin.

4.Make sure all food zones in the icemaker and storage bin are clean after the unit is serviced. For cleaning procedures, see “VI. CLEANING AND MAINTENANCE INSTRUCTIONS”.

1.SERVICE FOR REFRIGERANT LINES

[a] SERVICE INFORMATION

WARNING

1.Repairs requiring the refrigeration circuit to be opened must be performed by properly trained and EPA-certified service personnel.

2.Always recover the refrigerant and store it in an approved container. Do not discharge the refrigerant into the atmosphere.

3.Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of refrigerant to the system (if using an electronic leak detector), and then raise the pressure using nitrogen gas (140 PSIG). DO NOT use R-404A as a mixture with pressurized air for leak testing.

CAUTION

1.Do not leave the system open for longer than 15 minutes when replacing or servicing parts. The Polyol Ester (POE) oils used in R-404A units can absorb moisture quickly. Therefore it is important to prevent moisture from entering the system when replacing or servicing parts.

2.Always install a new drier every time the sealed refrigeration system is opened.

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