Manitowoc S Service Manual page 111

Section 7
HEAT
EXCHANGER
COMPRESSOR
X
LIQUID
LINE
SOLENOID
VALVE
DRIER
RECEIVER
SERVICE
VALVE
LIQUID/VAPOR EQUALIZED TO AMBIENT CONDITIONS
Automatic Shut-Off
The compressor and liquid line solenoid valve are de-
energized simultaneously when the contactor contacts
open.
During the off cycle, the check valve prevents refrigerant
from migrating back into the high side, and the liquid line
solenoid prevents refrigerant from migrating back into
the low side. This protects the compressor from
refrigerant migration during the off cycle, preventing
refrigerant slugging upon start-up.
Part Number 80-1480-3
EXPANSION VALVE
STRAINER
CHECK VALVE
HARVEST PRESSURE
REGULATING VALVE
X
H.P.R. SOLENOID
VALVE
Figure 7-5. Remote Automatic Shut-Off
Refrigeration System
X
HOT GAS SOLENOID VALVE
HEAD
PRESSURE
CONTROL
VALVE
R
CHECK VALVE
C
RECEIVER
EVAPORATOR
REMOTE
CONDENSER
B
SV1568
7-5