Liebert PX018 Installer's/User's Manual page 112

LIEBERT MC CONDENSER
CONDENSER COIL
LIQUID
Includes factory provided inverted
trap. No external trap required.
HOT GAS
DISCHARGE
LIEBERT PDX UNIT AND ASSOCIATED PIPING
Digital Solenoid Valve
Service
Valve
Check
Valve
COMPRESSOR
Thermal Expansion
Solenoid
Valve
Valve
REFRIGERANT PIPING
FIELD PIPING
Notes:
1. Schematic representation shown. Do not use for specific connection locations.
2. Components are not supplied by Liebert but are required for proper circuit operation and maintenance. One or more additional pressure relief valves are required downstream
of any and all field installed isolation valves. Do not isolate any refrigerant circuits from over pressurization protection.
3. A trap at the base of the riser is required for proper circuit operation.
DPN002929
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LIEBERT PDX
PIPING SCHEMATIC
AIR COOLED MODELS WITH TXV
OPTIONAL FIELD
INSTALLED
FUSIBLE PLUG
LIQUID
Sensing
Bulb
SUCTION
External
Service
Equalizer
Valve
HOT GAS DISCHARGE
Filter Drier
Sight
Glass
SERVICE / SCHRADER (ACCESS) CONNECTION NO VALVE CORE
SERVICE / SCHRADER (ACCESS) CONNECTION WITH VALVE CORE
Check Valve
Relief Valve
Service
Valve
LEE-TEMP RECEIVER
CONDENSER COIL
Includes factory provided inverted
trap. No external trap required.
EVAPORATOR
COIL
Pressure
2
Relief
Valve
LIQUID RETURN
LIEBERT MC CONDENSER
WITH LEE-TEMP RECEIVER
LIQUID RETURN
Head Pressure
Control Valve
LIQUID
HOT GAS DISCHARGE
2
For rises over 25ft. (7.6m),
trap every 20ft. (6m) or evenly
divided
Trap at base of risers
over 5ft. (1.5m)
Isolation Valve
2
Isolation Valve
2
REV DATE : 3/17
3
REV : 7