Hoshizaki RELIABILITY IS A BEAUTIFUL THING DCM-270BAH-OS, Service Manual

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12) Braze the process, suction and discharge lines (do not change this order), while purging
with nitrogen gas flowing at the pressure 3-4 PSIG.
13) Install the new filter drier.
14) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
15) Connect the terminals, and replace the terminal cover in its correct position.
16) Evacuate the system, and charge it with refrigerant. See the nameplate for the required
refrigerant charge.
17) Replace the panels in their correct positions.
18) Plug in the dispenser and turn on the power supply.
4. Removal and Replacement of Drier
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.
1) Turn off the power supply and unplug the icemaker.
2) Remove the panels.
3) Recover the refrigerant and store it in an approved container.
4) Remove the drier using brazing equipment.
5) Install the new drier, in the direction of the refrigerant flow. Use nitrogen gas at a
pressure of 3-4 PSIG when brazing the tubings.
6) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
7) Evacuate the system, and charge it with refrigerant. See the nameplate for the required
refrigerant charge.
8) Replace the panels in their correct positions.
9) Plug in the dispenser, and turn on the power supply.