Piping Schematics

Figure 62 Piping schematic—GLYCOOL with scroll compressor models

For systems with drycoolers,

refer to 12.11.3 - Drycooler Settings.

LIEBERT

 

EXPANSION

Optional Dual Pump System shown

 

 

 

HEAT REJECTION

TANK**

 

GLYCOL PUMPS

 

 

 

 

 

 

 

Check Valves*

DRYCOOLER

 

 

 

 

(on Dual Pump

 

 

Pressure

Systems only)

(Glycol)

 

 

Gate Valves*

Aquastat

Port*

 

 

 

 

Sensing

 

 

 

 

Bulbs

 

 

 

 

 

Hose

 

 

Air Vents￿

Pressure Port*

 

Shutoff Valve*

(typical)***

 

Bib*

 

 

 

 

 

 

 

 

 

 

Flow Switch

 

 

 

 

 

Supplied with Dual

 

 

 

 

 

Pump Systems

 

Shutoff Valve*

 

 

Flow-Regulating

 

 

 

 

 

Valve*

 

 

 

 

RETURN

SUPPLY

LIEBERT DS UNIT (and associated piping)

LIQUID

Sensing Bulb

SUCTION

ECON-O-COIL

EVAPORATOR COIL

 

 

RETURN

3-Way

 

Shutoff Valve*

Chilled Glycol

 

 

 

Valve

Thermistor

Hose

 

3-Way

 

Bib*

Chilled Glycol

 

Valve

 

 

SUPPLY Shutoff Valve*

Hose

Bib*

 

Check

 

Service

 

 

 

 

Valve COMPRESSORValve External

 

 

 

 

 

 

Equalizer

 

 

 

 

DISCHARGE

 

 

 

 

 

 

 

 

Paradenser ®

3-Way

 

 

 

 

 

Condenser

Regulating

 

 

 

 

 

Valve

 

 

 

 

 

 

 

Expansion Solenoid

Sight Filter Dryer

 

 

 

Valve

Valve

Glass

Relief valve(s) supplied

Sensor

 

 

 

 

To Second

 

 

 

 

 

with 50 Hz EU CE units rated

 

 

 

 

 

maximum 480 PSIG (33 Bar). Refrigeration

 

 

 

 

 

 

Circuit

 

 

NOTE: Two refrigeration circuits provided.

 

 

 

Single refrigeration circuit shown for clarity.

 

 

 

 

FIELD PIPING

 

 

* Components are not supplied by

 

FACTORY PIPING

 

 

Liebert but are recommended for

 

SERVICE / SCHRADER (ACCESS) CONNECTION WITH VALVE CORE

 

proper circuit operation and

 

 

maintenance

 

SERVICE / SCHRADER (ACCESS) CONNECTION NO VALVE CORE

 

** Field installed at highest point in

 

 

system on return line to pumps

 

 

 

 

 

 

NOTE: Schematic representation shown. This schematic does not imply or define elevations and

*** Locate at tops of all risers and

any intermediate system high points

component location, unless specifically noted.

 

 

 

 

DPN000898

 

 

 

 

 

 

 

 

 

 

 

 

REV 3

87

Page 97
Image 97
Liebert DS user manual Liebert