Coupling Instructions - Scotsman CME1056R Mode D'emploi

Coupling Instructions

The couplings on the ends of the pre-charged line sets
are self-sealing when installed properly. Follow these
instructions carefully.
Initial Connections
1. Remove the protector caps and plugs. Wipe the seats
and threaded surfaces with a clean cloth to remove any
possible foreign matter.
2. Thoroughly lubricate the threads, o-rings, diaphragms
and all internal coupling surfaces with polyolester
refrigerant oil.
Clean and Lubricate Couplings
3. Position the fittings on the correct connections on the
condenser and ice machine.
The discharge line (schrader valve end) goes to the
remote condenser fitting marked "discharge line".
The liquid line (schrader valve end) goes to the remote
condenser fitting marked "liquid line".
The discharge line goes to the ice maker fitting marked
"discharge line".
The liquid line goes to the ice maker fitting marked
"liquid line".
Final Connections:
4a. Begin to tighten the couplings together by hand.
Continue to turn the swivel nuts by hand until it is
certain that the threads are properly engaged.
4b. Using two wrenches, one to rotate the swivel nut and one to
hold the tubing in place, tighten each coupling.
Tighten Swivel Nut
It is CRITICAL that ONLY the NUT on the pre-charged tube
be turned, or the diaphragms will be torn by the piercing knives
and become loose in the refrigeration system causing severe
operational problems.
Note: As the coupling is tightened, the diaphragms in the quick
connect couplings will begin to be pierced. As that happens,
there will be increased resistance to tightening the swivel nut.
4c. Continue tightening the swivel nut until it bottoms out or a
very definite increase in resistance is felt (no threads should be
showing). Do NOT overtighten.
5. Use a marker or pen to mark a line on the coupling nut and
unit panel. Then tighten the coupling nut an additional
one-quarter turn. The line will show the amount that the nut
turns.
Rotate Swivel Nut ¼ Turn More
6. After all connections have been made, and after the liquid
line valve has been opened (do not open yet), check the
couplings for leaks.
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