Section 2
DESCRIPTION
17
SUPERVISOR OUTPUT RELAYS
PARAMETERS OPERATION
COMPRESSOR RUN 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.
LOAD/UNLOAD SOLENOID VALVE Controls regulator bypass solenoid valve to load or
unload the compressor as demand varies.
COMMON FAULT ALARM Initiates to provide a common signal for remote indi-
cation of a fault shutdown.
WYE---DELTA TRANSITION Contact is used to control Wye---Delta starter transi-
tions logic. This contact is controlled by the Wye to
Delta timing function.
DRAIN SOLENOID VALVE Controlled by the drain time and drain interval timers,
this contact is used to control an optional condensate
drain solenoid valve.
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