JOHNSON CONTROLS
34
FORM 161.01-OM1
ISSUE DATE: 6/8/2018
SECTION 3 - OPTIVIEW™ CONTROL CENTER FUNCTIONS AND NAVIGATION
FIGURE 8 - EVAPORATOR SCREEN
LD26730
DISPLAY ONLY FIELDS
DISPLAY ONLY FIELDS
FIELD/LED NAME DESCRIPTION
Leaving Chilled Liquid Temperature Displays the temperature of the liquid as it leaves the evaporator
Entering Chilled Liquid Temperature Displays the temperature of the liquid as it enters the evaporator.
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
enabled, otherwise it will be represented by the Evaporator Saturation tempera-
ture.
Evaporator Pressure Displays the present refrigerant pressure in the evaporator.
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 - Shutdown
Displays the Leaving Chilled Liquid Temperature at which the chiller will shut-
down on LEAVING CHILLED LIQUID – LOW TEMPERATURE cycling shutdown.
It is calculated automatically from the temperature setpoint minus the shutdown
offset setpoint and limited to chiller minimum
Leaving Chilled Liquid Temperature
Setpoints – Restart
Displays the Leaving Chilled Liquid Temperature at which the chiller will restart
after it has shutdown on LEAVING CHILLED LIQUID – LOW TEMPERATURE
cycling shutdown. This temperature is set as an offset using the LEAVING
CHILLED LIQUID TEMPERATURE CYCLING OFFSET – RESTART setpoint.
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.
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