Screw Compressor Central Chiller
Chapter 4: Operation
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The system automatically rotates the compressor order to generate a Lead/Lag rotation. Any
time a compressor is faulted or manually taken OFF-LINE, it will be removed from the
Lead/Lag rotation. Once the fault is cleared or manually put ON-LINE, the compressor is
returned to the Lead/Lag rotation at the end of the rotation order.
While in the Configuration Menu, the compressors can be setup in a rotation configuration
using interval hours. By pressing the “
Compressor Rotation Interval
” button, a numeric
keypad will be displayed and allow the user to change the timeframe of the interval
(Maximum 400 minutes to 40 hours).
To activate the rotation operation touch the “
Compressor Rotation
” button. The status of
the button will change to Enabled (green background), or Disabled (red background).
Setting Pump Rotation Times and Activating Pump Rotation Operation
The system automatically rotates the pump order to generate a Lead/Lag rotation. Any time a
pump is faulted or manually taken OFF-LINE, it will be removed from the Lead/Lag rotation.
Once the fault is cleared or manually put ON-LINE, the pump is returned to the Lead/Lag
rotation at the end of the rotation order.
While in the Chilled Water Pump Tank Configuration Menu, the pump lead/lag (rotation) can
be enabled or disabled. Simply press the Process or Recirculation Pump Interval button on
the screen to toggle between Enabled and Disabled.
The interval between rotating pumps may also be setup in this screen. Press the CW Pump
Rotation Interval button to bring up the time entry screen. Acceptable range is 50-200 hours.
Viewing and Setting System Temperatures
