User manual

Piping Schematics
Liebert
®
DS
™
96
10.0 PIPING SCHEMATICS
Figure 68 Piping schematic—air-cooled, semi-hermetic compressor models
DPN000797
Rev. 6
Filter Drier
Solenoid
Valve
Expansion
Valve
Sight
Glass
SUCTION
LIQUID
COMPRESSOR
EVAPORATOR
COIL
Muffler
CONDENSER
COIL
(FAN SPEED or VFD)
REFRIGERANT PIPING
FIELD PIPING
Service / Schrader (Access) Connection With Valve Core
Service / Schrader (Access) Connection No Valve Core
For rises over
25ft. (7.6m),
trap every 20ft. (6m) or
evenly divided*
NOTES: Two refrigeration circuits provided.
Single refrigeration circuit shown for clarity.
Schematic representation shown.
Do not use for specific connection locations.
CONDENSER
COIL
(Liebert Lee-Temp)
Cylinder
Unloader(s)
Sensing
Bulb
Liebert Lee-Temp Receiver
External
Equalizer
* Components are not supplied by
Emerson but are recommended for
proper circuit operation and
maintenance.
** Components supplied by Emerson
and must be field-installed (70kW,
77 kW & 105kW models only)
Service
Valve
Service
Valve
*Isolation
Valve
**Muffler
*Isolation
Valve
Liquid Return
Hot Gas Discharge
Hot Gas Discharge
LIEBERT LEE-TEMP
Inverted Trap on discharge
and liquid lines to extend above
base of coil by a minimum of
7-1/2" (190mm).
Check Valve
Check
Valve
Service
Valve
Relief Valve
Head Pressure
Control Valve
Liquid Return
Trap at base of risers
over 5ft. (1.5m)*
Optional Field-Installed
Fusible Plug
Optional
Sub-Cooling
Coil
Optional
Sub-Cooling
Coil