Hoshizaki KM-2400SRF3, KM-2400SRH3 service manual Removal and Replacement of Compressor Important

3.REMOVAL AND REPLACEMENT OF COMPRESSOR IMPORTANT

Always install a new Drier every time the sealed refrigeration system is opened. Do not replace the Drier until after all other repair or replacement has been made.

Note: Due to the ability of the POE oil in the compressor to absorb moisture quickly, the Compressor must not be opened more than 15 minutes for replacement or service. Do not mix lubricants of different compressors even if both are charged with R-404A, except when they use the same lubricant.

1)Turn off the power supply.

2)Remove the panels.

3)Recover the refrigerant and store it in an approved container.

4)Remove the Terminal Cover on the Compressor, and disconnect the Compressor Wiring.

5)Remove crankcase heater.

6)Remove the Discharge and Suction Pipes.

7)Remove the Hold-down Bolts, Washers and Rubber Grommets.

8)Slide and remove the Compressor. Unpack the new Compressor package. Install the new Compressor.

9)Place the Compressor in position, and secure it using the Bolts, Washers, and Rubber Grommets.

10)Remove nuts from the Suction and Discharge.

11)Tighten the Suction and Discharge nuts to 80ft-lbs and 68ft-lbs respectively, while purging with nitrogen gas flowing at the pressure 3-4 PSIG.

12)Apply a thin coat of Dow Corning 340 Heat Sink Compound (Part# 8601-0113) to the crankcase heater, and insert it into the well.

13)Install the new Filter Drier.

14)Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.

34