Piping Schematics
95
Figure 68 Piping schematic—air-cooled, scroll compressor models
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
Relief Valve
Service
Valve
LIQUID RETURN
Head Pressure
Control Valve
CONDENSER
COIL
(LIEBERT LEE-TEMP)
HOT GAS DISCHARGE
HOT GAS DISCHARGE
Optional
Field-Installed
Fusible Plug
CONDENSER
COIL
(FAN SPEED or VFD)
LIQUID
EVAPORATOR
COIL
* For rises over 25ft. (7.6m),
trap every 20ft. (6m) or
at evenly spaced points
* Trap at base
of risers longer
than 5ft. (1.5m)
Field-installed relief valve(s) required
for 50Hz EU CE units rated maximum
480 PSIG (33 Bar).
Service
Valve
Service
Valve
28-42kW Digital Solenoid Valve
SUCTION
External
Equalizer
Sensing
Bulb
COMPRESSOR
*Isolation
Valve
HOT GAS DISCHARGE
LIQUID RETURN
Filter Drier
Sight
Glass
Solenoid
Valve
Expansion
Valve
*Isolation
Valve
* Components are not supplied
by Emerson but are recommended for
proper circuit operation and
maintenance
NOTES: Schematic representation shown. Do not use for specific connection locations.
Two refrigeration circuits provided. Single refrigeration circuit shown for clarity.
SERVICE / SCHRADER (ACCESS) CONNECTION WITH VALVE CORE
DPN000798
REV 5
LIEBERT LEE-TEMP
(Liebert Lee-Temp or VFD condenser
is required with digital scroll)
FAN SPEED/VFD
(Liebert Lee-Temp or VFD condenser
is required with digital scroll)
Liebert Lee-Temp Receiver
REFRIGERANT PIPING
53-70kW Digital
Solenoid Valve
FIELD PIPING
SERVICE / SCHRADER (ACCESS) CONNECTION, NO VALVE CORE
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