Liebert PX018 Installer's/User's Manual page 114

CUSTOMER
HEAT REJECTION
COOLING TOWER
AND PUMP
SYSTEM
BY OTHERS
SUPPLY
RETURN
LIEBERT PDX UNIT
(and associated piping)
LIQUID
Digital Solenoid Valve
Sensing Bulb
Service
Valve
Service
Check
Valve
COMPRESSOR
Valve
DISCHARGE
Expansion
Sight
Filter Drier
Valve Glass
FACTORY PIPING
FIELD PIPING
OPTIONAL FACTORY PIPING
Notes:
1. Schematic representation shown. Do not use for specific connection locations.
2. Install a 20 mesh strainer, in an easily accessible location, on the water/glycol supply to prevent particles from entering the heat exchanger. Strainer bypass valves are recommended
to allow the strainer to be cleaned while maintaing flow to the cooling unit.
3. Components are not supplied by Liebert.
4. Field installed at highest point in system on return line to pumps.
5. Locate at tops of all risers and any intermediate system high points.
6. Components are Liebert supplied and field installed, and are required for proper circuit operation and maintenance.
7. Component are not supplied by Liebert but are recommended for proper circuit operation and maintenance.
DPN002931
Page :1 /1
LIEBERT PDX
PIPING SCHEMATIC
WATER/GLYCOL MODELS
LIEBERT
HEAT REJECTION
DRYCOOLER
(Glycol)
EVAPORATOR
COIL
SUCTION
External
Equalizer
EXCHANGER
Pressure
Transducer
SERVICE / SCHRADER (ACCESS) CONNECTION NO VALVE CORE
SERVICE / SCHRADER (ACCESS) CONNECTION WITH VALVE CORE
EXPANSION
TANK
4
3
Aquastat
Pressure
Sensing
Port
Bulbs
3
Hose
Bib
Shut-Off Valve
Shut-Off Valve
3
Optional 3-Way
Motorized Ball
Valve
2-Way
Motorized
Ball Valve
HEAT
Optional Dual Pump System shown
GLYCOL
PUMPS
Check Valves
(on Dual Pump
Systems only)
Gate Valves
Air Vents
Pressure Port
3
(typical) 5
Flow Switch
Supplied with Dual
Pump Systems
Flow-Regulating
Valve
SUPPLY
RETURN
SUPPLY
RETURN
3
Hose
Shut-Off Valve
Bib
Shut-off Valve
(3) Places
Hose
Bib
3 Y-Strainer
6
REV DATE : 12/16
3
3
3
3
3
7
From
iCOM
Control
To
iCOM
Control
REV : 3