Note: Do not use the modular SA Bus port and the terminal block SA Bus simultaneously. Only
use one of these connections at a time.
Supply power terminal block
The 24 VAC supply power terminal block is a gray, removable, 2-terminal plug that fits into a board-
mounted jack on the upper left of the CVM03050 controller.
Wire the 24 VAC supply power wires from the transformer to the HOT and COM terminals on the
terminal plug as shown in Figure 7. For more information about Supply Power terminal functions,
requirements, and ratings, see Table 4.
Figure 7: 24 VAC supply power terminal block wiring
Note: The supply power wire colors may be different on transformers from other
manufacturers. Refer to the transformer manufacturer’s instructions and the project
installation drawings for wiring details.
Important: Connect 24 VAC supply power to the CVM and all other network devices so
that transformer phasing is uniform across the network devices. Powering network devices
with uniform 24 VAC supply power phasing reduces noise, interference, and ground loop
problems. The CVM does not require an earth ground connection. However, when grounding
the secondary of the 24 VAC transformer is required, only one connection to ground must be
made near the transformer. See Figure 8.
11F4-CVM VAV Terminal Equipment Controllers Installation Instructions
To Next Page
Loading...
Need help?
General
