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Air-Cooled Models—Self-Contained Compressor
35 Liebert
®
Challenger 3000
™
Figure 18 General arrangement—Air-cooled models with digital scroll and Liebert Lee-Temp
™
Digital
Solenoid Valve
DPN001725
Rev. 1
* Components are not supplied by Liebert
but are recommended for proper
circuit operation and maintenance.
** Components supplied by Liebert
and must be field-installed.
OPTIONAL PIPING
FIELD PIPING
FACTORY PIPING
Piping Assembly **
Condenser Coil
Rotalock Valve **
1/4" ( 6.4mm)
Pressure Relief
Valve * *
Sight Glass
Liebert
Lee-Temp
Receiver
Head Pressure
Control with
Integral Check
Valve
Check Valve
Liquid Return
from Condenser
Evaporator Coil
Sensing Bulb
Expansion Valve
Solenoid Valve
Sight Glass
Filter
Drier
Liquid Return
Shutoff
Valve *
External Equalizer
Service
Valves
Digital
Compressor
Hot Gas Discharge
Check
Valve
Inverted trap * on
discharge and liquid
lines to extend above base
of coil by a minimum
of 7-1/2" (190mm)
* Trap at base
of risers longer
than 5ft. (1.5m)
* For rises over
25ft. (7.6m), trap
every 20ft. (6m) or
at evenly spaced
points (hot gas
line only)