Hoshizaki F-800MAH, Service Manual

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7. REMOVAL AND REPLACEMENT OF CONDENSING PRESSURE
REGULATOR (C.P.R.) - REMOTE AIR-COOLED MODEL ONLY
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.
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) Remove the C.P.R. using brazing equipment.
5) Braze the new C.P.R. with nitrogen gas flowing at the pressure of 3 - 4 PSIG.
WARNING
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.
6) Install the new Drier in the icemaker.
7) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
8) Evacuate the system and
charge it with refrigerant.
See the label on the Control
Box in the icemaker.
9) Replace the panels in their
correct position.
10) Turn on the power supply.