Manitowoc SD0672C, Technician'S Handbook, Page: 48 / 298

48 Part Number 80-1505-3 6/11
SERVICE LOOP
• The supplied service loop (on Ice Beverage ice
machines) is an installation requirement.
Excess tubing length must be sufficient to
allow 180° rotation of the ice machine.
• A service loop is not considered an oil trap.
• The service loop is not included when calculating
length, rise or drop of the tubing run.
• Do not use hard rigid copper for the service loop.
Step 4 Lengthening or Reducing Line Set Lengths
When the line set requires shortening or lengthening,
do so before connecting the line set to the ice machine
head section or the CVD
®
Condensing Unit.
Step 5 Connecting the line set.
To prevent oxidation of the copper, purge line set and
condensing unit with dry nitrogen while brazing.
!
Caution
If a line set has a rise followed by a drop, another
rise cannot be made. Likewise, if a line set has a
drop followed by a rise, another drop cannot be
made.
!
Caution
Do not form unwanted traps in refrigeration lines.
Never coil excess refrigeration tubing.
! Warning
The ice machine head section contains refrigerant
charge. The ice machine head section contains
three (3) refrigeration valves that
must remain
closed until proper installation of the line sets is
completed.