Connect the two wires to the terminals on the controller's PCB. These are non-polar, meaning it does not matter which wire goes to which terminal.

: If using multiple controllers for one unit, one must be designated as the "Master" and others as "Sub" controllers.

If you want, I can search for and summarize specific wiring diagrams or provide step-by-step DIP-switch/menu settings — tell me which model (BRC1C51 or BRC1C61) and whether you need wiring, address configuration, or sensor hookups.

The installation manual provides detailed wiring diagrams to help with the installation process. The diagrams show the connections between the controller, the VRF system, and other devices.

The physical installation and wiring pinouts are identical. The BRC1C61 is essentially the successor with updated firmware for newer Daikin indoor units. Therefore, this installation manual applies to both models interchangeably.