Titus Alpha BAC-8001/BAC-8201 Cooling Only - Manual (Page 17)

Installing the controllers
Connecting power
17
Connecting
power
The controllers require an external, 24 volt, AC power source. Use the following
guidelines when choosing and wiring transformers.
.
Do not run 24 volt, AC power from within an enclosure to external
controllers.
Connect the 24 volt AC power supply to the power terminal block on the lower
right side of the controller near the power jumper. Connect the ground side of
the transformer to the ground terminal and the AC phase to the phase ~
terminal. Power is applied to the controller when the transformer is powered.
Illustration 2-10 Power terminals and jumper
Illustration 2-11 Power connections
Power
terminals
Use a Titus Alpha Controls Class-2 transformer of the appropriate size to supply
power to the controllers. Titus recommends powering only one controller from each
transformer.