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TRILLIUMSERIES™ ADIABATIC PRODUCT
Appendix: EcoFlex™
Controls
a
The BAC TrilliumSeries™ Adiabatic Product controller is the brains of the unit and
manages all the peripherals. At lower ambients, the TrilliumSeries™ Adiabatic Product
will act like an air cooled condenser or cooler with variable speeds. At higher ambients,
the TrilliumSeries™ Adiabatic Product goes into Pre-Cooler Mode which opens the supply
valve, fills the sump until the liquid level sensor is satisfied, then turns on the pump to
disperse water over the Pre-Cooler Pads. The water will continue to recycle as part of the
internal daily drain and cleansing circulation schedules or in the case of the Water Saver
option, until the water quality conductivity sensor initiates a dump.
The fans are controlled via an external 0-10V, 10-0V, 4-20mA, BacNet, or Modbus signal
from the refrigeration BMS system (based off a condenser discharge pressure setpoint) or
via an internal PID loop driven by a pressure sensor of the condenser pressure. Below are
details showing the menu structure of the controller and how to navigate it.
Menus
Main Menu
Figure 41. Main Menu
Enter
Up
Down
Alarm
Program
Escape
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