Evaporator Screen - Johnson Controls YORK OM Titan Operating Instructions Manual

FORM 160.72-O1 (810)
figure 4 -

EVAPORATOR SCREEN

overvieW
This screen displays a cutaway view of the chiller
evaporator. All setpoints relating to the evaporator side
of the chiller are maintained on this screen. Animation
of the evaporation process indicates whether the chiller
is presently in a RUN condition. Animation of the liq-
uid flow indicates chilled liquid flow.
displaY onlY
leaving Chilled liquid Temperature
Displays the temperature of the liquid as it leaves the
evaporator.
return Chilled liquid Temperature
Displays the temperature of the liquid as it enters the
evaporator.
small Temperature difference
Displays the difference between the Leaving Chilled
Liquid temperature and the Evaporator Refrigerant
temperature. The Evaporator Refrigerant temperature
will be represented by the Refrigerant Temperature
sensor input if the sensor is present, otherwise it will be
represented by the Evaporator Saturation temperature.
JOHNSON CONTROLS
evaporaTor sCreen
evaporator pressure
Displays the present refrigerant pressure in the evapo-
rator.
leaving Chilled liquid Temperature setpoints
- setpoint
Displays the present setpoint to which the chiller is
operating, whether controlled locally or remotely.
leaving Chilled liquid Temperature setpoints
-alarm
Displays the temperature at which a warning alarm will
be displayed on the system details message bar.
leaving Chilled liquid Temperature setpoints
-shutdown
Displays the Leaving Chilled Liquid Temperature at
which the chiller will shut down to avoid over-cooling
the building. By default this value is 4°F below the
Leaving Chilled Setpoint.
leaving Chilled liquid Temperature setpoints
-restart
Displays the Leaving Chilled Liquid Temperature at
which the chiller will restart after it has shut down due
3
23