Sullair LS-25S Operator's Manual And Parts List page 22

SUPERVISOR OUTPUT RELAYS
PARAMETERS
COMPRESSOR RUN
LOAD/UNLOAD SOLENOID VALVE
COMMON FAULT ALARM
WYE---DELTA TRANSITION
DRAIN SOLENOID VALVE
OPERATION
Initiates starter controls and all auxiliary contacts that
operate simultaneously with the main starter. Supervi-
sor assumes compressor is running if contact is
closed and P1 discharge pressure is at a satisfactory
level.
Controls regulator bypass solenoid valve to load or
unload the compressor as demand varies.
Initiates to provide a common signal for remote indi-
cation of a fault shutdown.
Contact is used to control Wye---Delta starter transi-
tions logic. This contact is controlled by the Wye to
Delta timing function.
Controlled by the drain time and drain interval timers,
this contact is used to control an optional condensate
drain solenoid valve.
Section 2
DESCRIPTION
17