Usually the Nest installation is done by installing the Heat Link in the place of the existing programmer. All of the required wires are already there and it's just a matter of moving them from the terminal of the existing programmer, to the terminal at the Heat Link that has exactly the same function.
To remove the programmer and its wiring and then connect the Heat Link directly into the wiring centre is not simple. You will be basically making all of the connections from scratch. Unless you are extremely competent, and know where each wire goes and what it does, there is so much scope for error in doing that.
To remove the programmer and its wiring and then connect the Heat Link directly into the wiring centre is not simple. You will be basically making all of the connections from scratch. Unless you are extremely competent, and know where each wire goes and what it does, there is so much scope for error in doing that.
