Emerson Liebert XDR - Manual (Page 29)

Piping
23
Figure 22 Removable couplings
6.7.5 Connect a Liebert XDR with Liebert XD Flex Pipe to a Liebert XD System
NOTICE
Risk of refrigerant loss. Can cause environmental pollution and equipment malfunction.
Before connecting the Liebert XDR with Liebert XD Flex Pipe to the prefabricated piping
mains, check the whole system for leaks.
Check the Liebert XDR to ensure that the module has no refrigerant leaks.
Read all instructions before beginning installation.
Tools Required
• One adjustable wrench with a maximum adjustment size of 2 inches
• One torque wrench, half-inch drive
• Crowsfoot (supplied with Liebert XDP and Liebert XDC)
• Liebert XDP or Liebert XDC user manual
1. Determine the port location of the supply and return piping overhead.
2. Make sure the service valve for each port is closed
3. Remove caps from only the required ports. Do not remove caps from the unused ports.
4. Remove the pipe plugs that are supplied on the Liebert XD Flex Pipe.
5. Inspect both halves of the coupling and remove any foreign contamination from the sealing
surfaces and threads before connecting the fittings.
6. Determine the coupling size by locating the number scribed on the Liebert XD Flex Pipe coupling.
See Figure 23.
Table 4 O-ring part number
Liebert Part # Size, in. Fitting
192917P1 1/2 FD57-1224-08-10
192917P2 5/8 FD57-1224-10-11
192917P3 7/8 FD57-1224-14-12
NOTE
Check the entire system for leaks before connecting the Liebert XDR with Liebert XD Flex Pipe
to the prefabricated piping mains.
Read all instructions before beginning installation.
NOTE
This operation requires two or more people.
Removable Female Coupling on
the end of Liebert XD Flex Pipe
On the Liebert
Flex Pipe
On the Liebert
XD Module
Flange
O-Ring