AAON Orion BACnet General Controller - Installation & Wiring; Important Wiring Considerations

WIRING
6
BACnet
®
General Controller Technical Guide
Important Wiring Considerations
Important Wiring Considerations
Please read carefully and apply the following information when wir-
ing the BGC. The BGC requires the following electrical connections:
1. 18 gauge minimum wire unless otherwise noted.
2. 24 VAC power connection with an appropriate VA rating.
3. All 24 VAC wiring must be connected so that all ground
wires remain common. Failure to follow this procedure can
result in damage to the module and connected devices.
4. All wiring is to be in accordance with local and
nationalelectricalcodesandspecications.
5. Check all wiring leads at the terminal block for tightness.
Be sure that wire strands do not stick out and touch
adjacentterminals.Conrmthatalltransducersrequiredfor
your system are mounted in the appropriate location and
wired into the correct terminals.
WARNING: Observe polarity! All boards must be wired
GND-to-GND and 24 VAC-to-VAC. Failure
to observe polarity could result in damage
to the board.
POWER LED Operations
WhentheBGCisrstpoweredup,thePOWERLED(SeeFigure
5, page 15 for location) should light up and stay on continuously.
If it does not light up, check to be sure that you have 24 VAC con-
nected to the controller, that the wiring connections are tight, and that
they are wired for the correct polarity. The 24 VAC power must be
connected so that all ground wires remain common. If after making
allthesechecks,thePOWERLEDdoesnotlightup,pleasecontact
AAON Controls Technical Support for assistance.