20 Part Number 000016034 Rev 00 07/19
Installation Instructions Section 2
C. SUCTION LINE OIL TRAPS
,
Caution
Do not form unwanted traps in refrigeration lines. Never
coil excess refrigeration tubing.
0 to 6.1 m Rise: No oil trap is required when the condensing
unit is located 6.1 m or less above the ice machine head
section.
6.4 to 10.7 m Rise: The suction line requires an additional
Oil Trap (“S” type) to be installed. Install the trap as close as
possible to midpoint between the ice machine head section
and remote condensing unit. S-Trap Kits are available from
Manitowoc.
6.4 m OR
MORE RISE
ADDITIONAL
TRAP KIT
REQUIRED
Step 3 Lengthening or Reducing Line Set Lengths
,
Caution
Do not form unwanted traps in refrigeration lines. Never
coil excess refrigeration tubing.
When the line set requires shortening or lengthening, do
so before connecting the line set to the ice machine head
section or the remote condensing unit.
Step 4 Connecting the line set
To prevent oxidation of the copper, purge line set and
condensing unit with dry nitrogen while brazing.
A. Connect the Line Set to the Remote Condensing Unit
The condensing unit is not shipped with a refrigerant charge.
Do not expose the refrigeration oil or system to atmosphere
for more than 15 minutes. The line set shut-off valves can
remain closed or be opened during brazing. Protected the
valves from heat during the brazing process. Wrap the valves
in a wet rag or other type of heat sink prior to brazing. Cool
braze joint with water immediately after brazing to prevent
heat migration to the valve.
SUCTION LINE
LIQUID LINE
MINIMIZE THE TIME THE
REFRIGERATION SYSTEM IS
EXPOSED TO THE ATMOSPHERE
(15 MINUTES MAXIMUM)
B. Connect the Line Set to the Ice Machine Head Section
• Cut the suction and liquid tubing with a tubing cutter,
leaving enough tubing to easily braze.
• Connect the line set.
• Cool braze joint with water immediately after brazing to
prevent heat migration.
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