Liebert XDV Connection Methods-One-Shot Connections, Branch piping sizes for refrigerant loop

Piping

Table 4	Branch piping sizes for refrigerant loop
	Pipe Function	Size / Equivalent Pipe Length
Liebert XDP/Liebert XDC supply line, from		1-1/8" OD (1.025" ID) for lengths up to 60 feet (18m)
Liebert XDP/Liebert XDC supply
		1-3/8" OD (1.265" ID) for lengths over 60 but less than 175 feet (18 to 53m)
to farthest Liebert XDV
Liebert XDP/Liebert XDC return line, from		2-1/8" OD (1.985" ID) for lengths up to 60 feet (18m)
farthest Liebert XDV
		2-5/8" OD (2.465" ID) for lengths over 60 but less than 175 feet (18 to 53m)
to Liebert XDP/Liebert XDC return
From Liebert XDV supply to supply line of		1/2" OD (0.430" ID) for lengths up to 6 feet (1.8m)
Liebert XDP/Liebert XDC		5/8" OD (0.545" ID) for lengths over 6 feet but less than 35 feet (1.8-10.6m)
From Liebert XDV return to return line of		5/8" OD (0.545" ID) for lengths up to 6 feet (1.8m)
Liebert XDP/Liebert XDC		7/8" OD (0.785" ID) for lengths over 6 feet but less than 35 feet (1.8-10.6m)

6.6Connection Methods—One-Shot Connections

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.

Both supply and return fittings may be supplied with optional, one-shot connections. These fittings contain pressurized R-134a refrigerant inside the Liebert XDV.

! CAUTION

Risk of sudden refrigerant discharge. Can cause injury and loss of charge.

If the optional pre-charged option is chosen, the Liebert XDV unit is shipped with a full charge of R-134a refrigerant under pressure. Do not remove the pipe caps or plugs before the unit is ready for connection to Liebert XD Piping.

Supply and return fittings on the pre-charged Liebert XDV units are one-shot connections. Do not disconnect one-shot connections after they have been connected. Disconnection will release pressurized R-134a refrigerant from the Liebert XDV.

If the unit includes the optional, factory-installed, one-shot style connections, proceed with 6.7 - Field Installation of Liebert Flex Pipe Kit on Liebert XDV and see Figure 26.

If the unit does not include flex piping, refer to 6.4.1 - Holding Charge—Hard-Piped Units.

Figure 26 Piping location and connection sizes—pre-charged units with one-shot connections

Top View

Supply Connection 1/2"

Return￿

Connection￿

5/8"

Detail

Area “A”

Detail “A”

24