Hoshizaki CUBELET ICEMAKER/DISPENSER DCM-750BAH-OS - Manual (Page 56)

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E. Removal and Replacement of Self-Contained Air-Cooled Condenser
IMPORTANT
Always install a new drier every time the sealed refrigeration system is opened.
Do not replace the drier until after all other repairs or replacement have been
made.
) Move the control switch to the "OFF" position, then turn off the power supply. Remove
the front and top panels, then move the power switch to the "OFF" position.
) Remove the apron panel, then remove the left side panel.
3) Recover the refrigerant and store it in an approved container.
4) Disconnect the drip tray hose from the tee. Remove the four screws securing the drip
tray, then remove the drip tray and hose.
5) Remove the four bolts securing the fan motor assembly to the floor of the machine,
then move the assembly to the side.
6) Disconnect the condenser inlet and outlet piping.
7) Remove the screws securing the condenser assembly, then remove the assembly.
8) Remove the shroud from the old condenser and attach it to the new condenser.
9) Install the new condenser.
0) Remove the drier, then place the new drier in position.
) Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG.
) 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 (40 PSIG). DO NOT use R-404A as a mixture with
pressurized air for leak testing.
3) Evacuate the system, and charge it with refrigerant. See the nameplate for the required
refrigerant charge.
4) Replace the fan motor assembly in its correct position.
5) Replace the drip tray and drip tray hose in their correct positions. Secure the hose to
the tee. Pour water into the drip tray and check for leaks.
6) Move the power switch to the "ON" position, then replace the panels in their correct
positions.
7) Turn on the power supply, then move the control switch to the "ICE" position to start the
automatic icemaking process.