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Piping and Filling with Refrigerant: R-134a and R-407c Circuits
28
Figure 28 DCSL616 piping connections—two refrigerant circuits connected for parallel flow
Table 13 Recommended refrigerant line sizes for DCSL616
Liebert XDC 160
Equivalent
Length, ft., (m)
*Hot Gas Line,
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).
Traps * every 25 ft
(7.6m) of rise on hot
gas line only
Condenser Coil
(Circuit 1)
Condenser
Coil (Circuit 2)
Hot Gas/Discharge
Liquid/Return
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Standard
Piping
Assembly **
Rotalock
Valve **
1/4" (6.4mm)
Pressure Relief
Valve **
Sight Glass
Some Models Have
2 Sight Glasses
Lee-Temp
Receiver
Check
Valve
Head Pressure
Control with
Integral Check
Valve
Inverted Trap * on discharge
line to extend above base of
coil by a minimum of
7-1/2" (190mm)
Additional
Piping
Assembly **
DPN000937
Pg. 4, Rev 9
* * Components supplied by Liebert;
must be field-installed.
* Components are not supplied by Liebert
but are recommended for proper circuit
operation and maintenance.
Single XDC Circuit Shown
Field-Supplied Piping
Factory-Supplied Piping