Installation manual

Glycol Cooled/GLYCOOL™ Models
46
Figure 30 Glycol general arrangement
Filter
Dryer
Sight
Glass
Solenoid
Valves
Expansion
Valve
Hot Gas
Bypass
(optional)
Muffler
Shutoff Valve
Relief
Valve
Hose
Bibs*
Fill*
Drycooler
Coil
Drycooler
Electric Box
Expansion Tank
field-installed at
highest point in
system
Aquastat
Sensing
Bulbs
Air Vents*
at top of
risers
Liquid
Return
Pressure Ports*
Flow Regulating
Valve*
Fluid
Return to
Pump
Fluid
Supply
from
Pump
Flow Switch supplied
with dual pump systems
Unions*
Unions*
Glycol Coolant
Circuit (one
required per
unit)
Optional Dual
Pump System
Shown
Hot Gas
Bypass
Valve
Sensing
Bulb
External
Equalizers
Cylinder
Unloader
(optional)
Compressor
Service
Valves
Pump
Housing
Check Valves * (dual
pump systems only)
Gate Valves*
Condenser
Solenoid Valve
provided with
optional hot gas
reheat
Check
Valve
Condenser
Bypass
Valve
Hot Gas
Reheat
Coil
(optional)
Evaporator
Coil
3-Way Glycol
Regulating
Valve (optional)
2-Way Glycol
Regulating
Valve
2-Way Glycol
Regulating
Valve
Hose Bibs*
Shutoff
Valves*
Fluid
Return
from Unit
Fluid
Supply
to Unit
Bypass
Valve
Factory Piping
Optional Piping
Field Piping
* Components are not supplied by Liebert but
are recommended for proper circuit
operation and maintenance
To 2nd
refrigeration
unit
DPN000561 Rev0
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