TrilliumSeries™ Adiabatic
Cooler - TRF Rigging & Assembly Instructions
–
Installation
Page | 14
Control Connections
The controls wiring should be provided in a separate conduit from any power wiring. Do not penetrate the control panel, cord
grips are provided in the bottom of the control panel for all possible connections. Cord grips ship plugged to seal the control
panel during shipment. It is recommended to use shielded wire to avoid interference.
BAC offers the following op
tions to control the TrilliumSeries™
adiabatic cooler. Check the submittal package for
configuration settings and wiring diagrams.
•
Self-contained unit (leaving fluid temperature control):
The leaving fluid temperature is monitored with a sensor
installed in the leaving water piping. The sensor must be wired to terminals as shown in wiring diagrams included with
submittal package.
•
Communications via Modbus RS485, BACnet MS/TP or BACnet IP:
For RS485 connection, BAC recommends the use
of twisted shielded twisted paired wire with a ground. The Modbus and BACnet connections do not have any device
restrictions or proprietary protocols. Contact your building management system provider or controls integrator to verify
your system will work with the TrilliumSeries™
adiabatic cooler communications protocols. Please see the
TrilliumSeries™ Adiabatic Cooler –
TRF Operation & Maintenance Manual shipped with the unit and available at
for specific communication points map.
•
Customer control via input signal (10-0VDC, 0-10VDC or 4-20mA):
10-0VDC analog signal where 10V is 0% fan
speed and 0V is 100% fan speed, 0-10VDC analog signal where 0V is 0% fan speed and 10V is 100% fan speed. 4-20mA
analog signal where 4mA is 0% fan speed and 20mA is 100% fan speed.
Unit Operation
Prior to start-up and unit operation, refer to the TrilliumSeries
™
Adiabatic Cooler
–
TRF Operation & Maintenance Manual
shipped with the unit and also available at