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.
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.
To wire the CH-PCV controller, complete the following steps:
- Terminate wiring according the appropriate figure in Termination diagrams.
- Wire network sensors and other devices to the CH-PCV's SA Bus.
- 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).
- Connect the CH-PCV controller to 24 VAC, Class 2 power.