Supply power terminal block - BCPro - Part No. 24-10143-01663 - Field Device - PCV: Programmable VAV Box Controller

CH-PCV1930 VAV Controller Installation Instructions

Product name
PCV: Programmable VAV Box Controller
Document type
Installation Guide
Document number
Part No. 24-10143-01663
Document revision
Revision date

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 CH-PCV 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 1. For more information about Supply Power terminal functions, requirements, and ratings, see Table 1.

Figure 1. 24 VAC supply power terminal block wiring

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 CH-PCV 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 CH-PCV does not require an earth ground connection. However, when grounding the secondary of the 24 VAC transformer is required, only one connection to ground should be made near the transformer. See the following figure for further details.
Figure 2. Transformer Grounding

  • Risk of Property Damage
  • Do not apply power to the system before checking all wiring connections. Improper wiring of this terminal may cause a short circuit across the 24 VAC power supply on CH-PCV models. A short circuit may result in a tripped circuit breaker or blown fuse. If using a transformer with a built-in fuse, the transformer may need to be replaced.
  • Risque de dommages matériels
  • Ne mettez pas l’appareil sous tension avant d’avoir vérifié toutes les connexions du câblage. Le câblage inadéquat de cette borne peut causer un court-circuit sur l’alimentation électrique de 24 V c.a. des CH-PCV modèles. Un court-circuit peut causer le déclenchement du disjoncteur ou le grillage d’un fusible. Si vous utilisez un transformateur avec un fusible intégré, vous pourriez devoir remplacer le transformateur.

To wire the CH-PCV controller, complete the following steps:

  1. Terminate wiring according the appropriate figure in Termination diagrams.
  2. Wire network sensors and other devices to the CH-PCV's SA Bus.
  3. Ensure that the CH-PCV is assigned a controller number. Set the controller number using the rotary switches at the top of the controller. (See Setting the controller number).
  4. Connect the CH-PCV controller to 24 VAC, Class 2 power.