REV : 3
REV DATE : 12/16
DPN002931
Page :1 /1
WATER/GLYCOL MODELS
Form No.: DPN001040_REV4
PIPING SCHEMATIC
LIEBERT PDX
Service
Valve
Service
Valve
External
Equalizer
Sensing Bulb
Digital Solenoid Valve
FIELD PIPING
FACTORY PIPING
Check
Valve
EVAPORATOR
COIL
Expansion
Valve
COMPRESSOR
LIQUID
SUCTION
Sight
Glass
Filter Drier
HEAT
EXCHANGER
Hose
Bib
Shut-Off Valve
Hose
Bib
Flow-Regulating
Valve
Flow Switch
Supplied with Dual
Pump Systems
Pressure Port
Gate Valves
Check Valves
(on Dual Pump
Systems only)
GLYCOL
PUMPS
EXPANSION
TANK
Hose
Bib
SERVICE / SCHRADER (ACCESS) CONNECTION WITH VALVE CORE
SERVICE / SCHRADER (ACCESS) CONNECTION NO VALVE CORE
OPTIONAL FACTORY PIPING
Aquastat
Sensing
Bulbs
Pressure
Port
2-Way
Motorized
Ball Valve
Optional 3-Way
Motorized Ball
Valve
Optional Dual Pump System shown
DRYCOOLER
(Glycol)
Air Vents
(typical)
Shut-Off Valve
Shut-Off Valve
RETURN
SUPPLY
RETURN
SUPPLY
DISCHARGE
COOLING TOWER
AND PUMP
SYSTEM
BY OTHERS
CUSTOMER
HEAT REJECTION
LIEBERT
HEAT REJECTION
LIEBERT PDX UNIT
(and associated piping)
RETURN
SUPPLY
Pressure
Transducer
To
iCOM
Control
From
iCOM
Control
Y-Strainer
Shut-off Valve
(3) Places
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.
3
3
3
3
3
3
3
3
3
4
3
5
6
7
3
To Next Page
Loading...
Need help?
General
