Johnson Controls YORK OPTIVIEW CONTROL CENTER, Operation Manual

Page: 61 / 142

JOHNSON CONTROLS
61
SECTION 2 - OPTIVIEW OPERATION
FORM 160.10-O1
ISSUE DATE: 4/27/2018
2
ing the motor winding temperatures are at acceptable
levels. This will only be displayed if the digital input
is selected.
Bearing Temperature Switch (Open/Closed)
The bearing temperature switch indicates if the digi-
tal input for the bearing temperature is open or closed.
When the switch is open, the input is indicating that
the bearing temperature is above the bearing cutout
setpoint and the display will indicate a fault. When
the switch is closed, the input is indicating the bearing
temperatures are at acceptable levels. This will only be
displayed if the digital input is selected.
Motor Cooling Pump Thermostat (Open/
Closed)
This indicates the condition of the digital input for the
motor cooling pump thermostat. When the display in-
dicates “open”, the cooling pump motor is not running.
When the input indicates “closed”, the motor cooling
pump is being commanded to “RUN” due to motor
temperature. The cooling pump must be enabled for
this to be displayed.
OVERVIEW
This screen allows the operator to view and change
settings relating to the chiller motor winding tempera-
ture sensors, bearing sensors, and chiller motor cooling
pump, as equipped.
For chillers equipped with a motor cooling system, the
OptiView panel will energize the motor cooling pump
relay for 150 seconds after a high motor winding tem-
perature shutdown. This aids in proper motor cooling.
DISPLAY ONLY
Motor Cooling Pump (LED)
Indicates whether the digital output from the controls is
commanding the motor cooling pump to “RUN”. The
motor cooling pump feature must be “enabled” for this
to be displayed.
Winding Temperature Switch (Open/Closed)
The winding temperature switch indicates if the digi-
tal input for the motor winding temperature is open or
closed. When the switch is open, the input is indicat-
ing the temperature of a motor winding is above the
winding cutout setpoint and the display will indicate
a fault. When the switch is closed, the input is indicat-
MOTOR TEMPERATURE SCREEN
LD23599
FIGURE 23 - MOTOR TEMPERATURE SCREEN