Removal And Replacement Of Condensing Pressure Regulator (C.p.r.) (Remote Air-Cooled Model Only) - Hoshizaki KMD-900MRH Service Manual

10. Removal and Replacement of Condensing Pressure Regulator
(C.P.R.) (Remote Air-Cooled Model Only)
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 from the remote condenser unit.
3) Recover the refrigerant and store it in an approved container.
4) Before heating, break off the stub on the dome to release the dome charge.
5) Disconnect the C.P.R. using brazing equipment.
6) Install the new C.P.R. Use nitrogen gas at a pressure of 3-4 PSIG when brazing the
C.P.R.
Always protect the C.P.R. body by using a damp cloth to prevent the C.P.R.
from overheating. Do not braze with the C.P.R. body exceeding 250°F.
7) Install the new drier in the icemaker.
8) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
9) Evacuate the system and charge it with refrigerant. See the charge label in the machine
compartment in the icemaker.
10) Replace the panels in their correct positions.
11) Turn on the power supply.
IMPORTANT
WARNING
67