Scotsman C2648 - Manual (Page 12)

C2648 Prodigy and Prodigy Plus Service Manual
January 2015
Page 12
Coupling Instructions
The couplings on the ends of the pre-charged line
sets are self-sealing when installed properly.
Follow these instructions carefully.
These steps must be performed by an EPA Certified
Type II or higher technician.
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. Lubricate the inside of the couplings, especially
the threads and O-rings, with refrigerant oil.
3. Position the fittings on the correct connections on
the condenser and ice machine.
• Connect the 5/8” discharge line to the remote
condenser fitting.
• Connect the 1/2" liquid line to the remote condenser
fitting.
• Connect the discharge line to the ice maker fitting.
• Connect the 1/2" liquid line to the ice maker fitting.
Final Connections:
4. Tighten the couplings together by hand until it is
certain that the threads are properly engaged.
5. Hold the tubing from rotating with one wrench and
tighten each coupling swivel nut with another until
it bottoms out or a definite increase in resistance
is felt.
It is important that ONLY the nut on the pre-charged
tube be turned, or the diaphragms will be torn out
by the piercing knives and they will be loose in the
refrigeration system.
Note: As the couplings are tightened, the
diaphragms in the quick connect couplings will
begin to be pierced. As that happens, there will be
some resistance to tightening the swivel nut.
6. 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. Do NOT over tighten.
7. Check the couplings for leaks after all connections
have been made, and after the king / liquid outlet
valve has been opened (do not open at this time).