RTU wont emergency shutdown
I’m installing a wire from one of the rooftop units on my current job to a duct smoke, the duct smoke activated a relay module to open or close the contact. We have it set to normally closed for the RTU to run in normal conditions, when test switch is activated and or duct smoke unit should go open and shut the unit down however when looking at our board in the unit we see that the way they have it setup to run temporary is by taking the 24 v into the board and jumping it onto these “R” and “C” terminals. Assumed at first this was constant power and common however not sure, they used these terminals to constantly run the unit and by pass the shut down mechanism.
We would like to use the fire alarm wire to be the wire that turns the machine on not by jumping it out however it seems like when we go to hook up the unit how it should be wired it remains bypassed and stays on. Did the techs before Jerry rig it? Do we need 2 fire alarm wires instead of 1?
We verified all our equipment isn’t faulty and assuming it to be the wiring