Air-Cooled Models—Self-Contained Compressor
31 Liebert® Challenger 3000
Figure 16 General arrangement—Air-cooled models with digital scroll and fan speed control
DPN001726Rev. 2
Condenser
Coil
Schrader
Valv e
Schrader
Valv e
Optional Field-Installed
Fusible Plug
Evaporator
Coil
Solenoid
Valv e
Sight
Glass
Filter
Drier
Liquid Return
Shutoff*
Valv e
External
Equalizers
Sensing
Bulb
Digital
Compressor
Digital
Solenoid Valve
Service
Valv es
Hot Gas
Discharge
Check
Valv e
FIELD PIPING
FACTOR Y PIPI NG
SINGLE CIRCUIT SHOWN
* Components are not supplied by Liebert but
are recommended for proper circuit operation
and maintenance.
Expansion
Valv e
* 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