KMC Controls BAC-8007 Installation Guide - Manual (Page 21)

Connecting power The controllers require a 24 volt, AC power source. Use the following
guidelines when choosing and wiring transformers to the controller.
Use a Class–2 transformer of the appropriate size to supply power to the
controller.
KMC Controls recommends powering only one controller from each
transformer.
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. 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 connected to power.
Illustration 2–7 Controller power terminals
Blue
Brown
24 VAC
Class 2
ON CTS
1 2
COMM
READY
AI1
AI5
GND
AO4
AO3
SC
BO8
BO5
BO6
SC
BO7
24VAC
AI6
GND
AI7
T
-S
T
A
T
/
SEN
SO
R
-A +B S EO
L
BACnet MS/TP
SimplyVAV Section 2: Installing the controllers
Revision E 21