Liebert user manual General arrangement air cooled Liebert XDC Lee-Temp Control

Piping and Filling with Refrigerant: R-134a and R-407c Circuits

Figure 27 General arrangement air cooled Liebert XDC Lee-Temp Control

Condenser Coil

Inverted Trap * on discharge line to extend above base of coil by a minimum of 7-1/2" (190mm)

Check

Head Pressure Valve

Control with

Integral Check

Valve Lee-Temp

Receiver

Additional

Piping

Assembly **

Rotalock

Valve **

1/4" (6.4mm) Pressure Relief Valve **

Traps * every 25 ft. (7.6m) of rise on hot gas line only

Return

LiquidCondenser

from

Sight Glass

Some Models

Have 2 Sight Glasses

Standard Piping

Assembly **

Single XDC Circuit Shown

Liquid/Return

Hot Gas/Discharge

Field-Supplied Piping

Factory-Supplied Piping

*Components are not supplied by Liebert but are recommended for proper circuit operation and maintenance.

** Components supplied by Liebert and must be field-installed.

DPN000937 Pg. 4, Rev 9

Table 12 Recommended refrigerant line sizes, DX R-407c, OD copper

Liebert XDC 160

Equivalent	*Hot Gas Line,
Length, ft., (m)	in.	Liquid Line, in.
50 (15)	1-1/8	7/8
100 (30)	1-1/8	1-1/8
150 (45)	1-3/8	1-1/8
200 (60)	1-3/8	1-1/8

*Double risers are required when hot gas vertical rise is 15 feet or more (see 2.6 - Install Double Discharge Risers).

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