Drier - Hoshizaki KMD-201AWA Service Manual

4) Remove the terminal cover on the compressor and disconnect the compressor wiring.
5) Remove the hold-down bolts, washers, and rubber grommets.
6) Remove the discharge and suction pipes.
7) Remove the compressor. Unpack the new compressor package.
8) Attach the rubber grommets of the prior compressor.
9) Place the compressor in position and secure it using the bolts and washers.
10) Remove the drier, then place the new drier in position.
11) Remove plugs from the suction, discharge, and process pipes.
12) Braze all fittings while purging with nitrogen gas flowing at a pressure of 20 to 30 kPa.
13) 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 (970 kPa). DO NOT use R-404A as a mixture with
pressurized air for leak testing.
14) Evacuate the system, and charge it with refrigerant. For air-cooled and water-cooled
models, see the nameplate for the required refrigerant charge.
15) Connect the terminals and replace the terminal cover in its correct position.
16) Replace the panels and water tank in their correct positions.
17) Turn on the power supply.
Note: Hoshizaki recommends that compressor starting electrics are always replaced at the
same time as the compressor.

4. DRIER

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.
1) Turn off the power supply.
2) Remove the panels.
3) Recover the refrigerant and store it in an approved container.
4) Remove the drier holder, if any, and pull the drier toward you for easy service.
IMPORTANT
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