Hoshizaki F-2000MLF, Service Manual

Page: 65 / 82

65
7. REMOVAL AND REPLACEMENT OF CONDENSING PRESSURE
REGULATOR (C.P.R.) - REMOTE AIR-COOLED MODELS 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 replacements
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.
6) Braze the new C.P.R. with nitrogen gas flowing at the pressure of 3 - 4 PSIG.
WARNING
Always protect the valve body by using a damp cloth to prevent the valve
from overheating. Do not braze with the valve 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. 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