Manitowoc RFF Service Manual

20 Part Number 000017542 Rev 00 8/22
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 20 feet (0 to 6.1 m) Rise: No oil trap is required when
the condensing unit is located 20 feet (6.1 m) or less above
the ice machine head section.
21 to 35 feet (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.
21 ft. (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 with dry
nitrogen while brazing.
A. Connect the Line Set to the Remote Condensing Unit
The condensing unit is shipped with a refrigerant charge. The
line set shut-off valves must remain closed during brazing.
Protect 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.

Manitowoc RFF Specifications

General

Brand	Manitowoc
Model	RFF
Category	Ice Maker
Language	English