16
UNT Controller—Unitary (UNT) Controller
The I/O wiring and N2 Bus must be “clean,” without electrical noise
transients from nearby lighting, heavy equipment switching, or inductive
loads being driven.
For the N2 Bus, the Transient Eliminator, model TE/JC04C12, made by
Advanced Protection Technologies (APT) is recommended. Refer to the
N2 Communications Bus Technical Bulletin in FAN 636, 628.1, or 1628.1
for more information.
I/O and
Communications
Wiring
Transient Noise
Precautions