JOHNSON CONTROLS
35
SECTION 3 - OPTIVIEW™ CONTROL CENTER FUNCTIONS AND NAVIGATION
FORM 161.01-OM1
ISSUE DATE: 6/8/2018
3
DISPLAY ONLY FIELDS
FIELD/LED NAME
DESCRIPTION
Leaving Chilled Liquid Temperature
Setpoints (Shutdown) – Effective
Offset
Displays the present value of the leaving chilled liquid temperature shutdown
offset in effect limited by the chiller minimum temperature.
Leaving Chilled Liquid Temperature
Setpoints (Restart) – Offset
Displays the value set for leaving chilled liquid temperature restart offset.
Evaporator Saturation Temperature
Displays the present saturation temperature in the evaporator, determined from
evaporator pressure.
Evaporator Refrigerant Temperature
Displays the temperature of the refrigerant in the evaporator if this option is
installed and enabled.
Chilled Liquid Flow Switch (Open/
Closed)
Displays whether the liquid flow switch input indicates flow is present in the
evaporator.
Chilled Liquid Pump
Displays the command presently sent by the control center to the Chilled Liquid
Pump run contacts (RUN or STOP).
Low Evaporator Cutout
The cutout value is displayed in Water mode and displayed and adjustable in
Brine mode by a JCI Service Technician as appropriate for water or brine
PROGRAMMABLE
PROGRAMMABLE
BUTTON
ACCESS LEVEL
DESCRIPTION
Local Leaving
Chilled Liquid
Temperature -
Setpoint
Operator
This value allows the user to define the Leaving Chilled Liquid Temperature that
is to be maintained by the chiller. It is programmable over the range of 36.0°F
to 72.0°F (2.2 °C to 22.2 °C) (water) or 10.0°F to 72.0°F (-12.2 °C to 22.2 °C)
(brine).
When the chiller is running, performing capacity control, any change to the
LCHLT setpoint results in a ramp from the old value to the new value at the pro-
grammed LCHLT setpoint ramp rate.
Leaving Chilled
Liquid Temper-
ature Cycling
Offset -
Shutdown
Operator
This value allows the user to specify the Leaving Chilled Liquid Temperature
at which the chiller will shut down on a LEAVING CHILLED LIQUID – LOW
TEMPERATURE cycling shutdown. This is done by defining an offset below the
Leaving Chilled Liquid Temperature setpoint. It is programmable over a range of
1°F to 70°F (-17.2 °C to 21.1 °C).
Leaving Chilled
Liquid
Temperature
Cycling Offset -
Restart
Operator
This value allows the user to specify the Leaving Chilled Liquid Temperature at
which the chiller will restart after a shutdown on a LEAVING CHILLED LIQUID
– LOW TEMPERATURE cycling shutdown. This is done by defining an offset
above the Leaving Chilled Liquid Temperature setpoint. It is programmable over
a range of 0°F to 37°F (-17.8 °C to 2.8 °C).
NAVIGATION
NAVIGATION
BUTTON
DESCRIPTION
Home
Causes an instant return to the Home Screen.
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