Piping
Liebert
®
SRC
™
User Manual 36
Figure 5-1 Creating a flared fitting
1. Cut the pipe to length.
• Measure the distance between the indoor unit and the outdoor unit.
• Cut the pipes a littler longer than the measured distance.
• Cut the cable 4.9 ft longer than the pipe length.
2. A. Remove the burrs.
• Completely remove all burrs from pipe ends.
• When removing burrs, point the end of the copper pipe down to avoid introducing foreign materials
into the pipe.
B. Slide the flare nut onto the copper tube.
3. Flaring the pipe end.
• Use the proper size flaring tool to finish flared connections as shown in Figure 5-1.
• Always create a 45° flare when working with R410A. Refer to the Warning preceding this
procedure.
Figure 19: Creating a Flare Fitting
Copper
tube
90°
Slanted Uneven Rough
Pipe
Reamer
Point
down
Flare nut
Copper
tube
Bar
Copper pipe
Clamp handle
Red arrow
Cone
Yoke
Handle
Bar
"A"
Slanted
Inside is shiny with no scratches
Smooth
Even length
Damaged
surface
Cracked Uneven
thickness
Incorrect Flares
1.
2A. 2B.
3.
4.
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