Verasys® 32 Point 24 VAC Application Controller Installation Instructions
10
Supply Power Terminal Block
The 24 VAC supply power terminal block is a gray, removable, 3-terminal plug that fits into a board-mounted jack on
the top right of the 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 10. The middle terminal on the supply power terminal block is not used. See Table 7
for more
information about the Supply Terminal Block.
Figure 10: 24 VAC Supply Power Terminal Block
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.
EOL Switch
The red end of line switch (EOL) is located under the cover of the controller. You can set the red EOL switch when
the device is located at the end of the trunk or at the start of the trunk..
To set the end of the line, complete the following steps:
1.
Gently pull up on the side of the cover of the controller to access the switch. See ‘8’ on figure 11 for the location
of the cover lift tabs. Ensure you do not to pull the ribbon cable from the display membrane that connects to the
display.
2.
The red EOL switch is located near the system bus terminal. For location of the system bus terminal, see ‘15’
on Figure 11.
3.
Set the switch to
ON
Terminal Block
Plug
Wires from
Johnson Controls
24 VAC, Class 2
Power Transformer
Brown Wire
(COM)
Orange Wire
Disconnect supply power to controller by unplugging
Supply Power
Terminal Block
Jack
Supply Power
(24 VAC)
24V~
Supply Power Plug from Supply Power Jack.
HOT
COM
HOT
COM