Liebert XDH manual Connection Methods and Points, Hard pipe connection diagram

Piping

5.3Connection Methods and Points

Refer to site specific drawings for general locations of the piping connections. For Liebert XDH con- nection locations, refer also to Figure 16.

The assembly and connection means used for piping in the Liebert XD system are the same as those used in conventional refrigeration systems. Observe all standard practices during installation and startup to prevent damage and contamination.

Supply piping connection is 1/2" OD copper pipe, and return piping connection is 7/8" OD copper. Both supply and return fittings may be supplied with optional one-shot connections. These fittings contain pressurized R-134a refrigerant inside the Liebert XDH.

The Liebert XDH has supply and return piping access on the top of each module.

Figure 15 Hard pipe connection diagram

Return Main (seen from end )

2-1/8" O.D. or 2-5/8" O.D.

Acceptable Arc

Supply Main (seen from end )

1-1/8" O.D. or 1-3/8" O.D.

1/2” Refrigerant -Grade

Full-Port Ball Valve

Field-Supplied and

Field- Installed

Recommended Arc

7/8” Refrigerant-Grade

Full-Port Ball Valve

Field-Supplied and

Field-Installed

	Supply
	to Cooling
Refer to Table 2 for details.	Module

Rear of

Liebert XDH

Copper Tubing Total length of each line from Liebert XDH to Main; not to exceed 72" (1829mm)

Return from Cooling Module

Top of

Liebert XDH

15