24 volt transformer hardwire with rachio 2 enclosure

hi , all
i’m new to rachio 2 product , i want to know is it possible to hardwire rachio 2 enclosure with 23 volt transformer with power coming from orbit pump start relay to provide the proper power to rachio 2 ?

I recommend the Hunter PSR22 pump start relay or the Munro pump start relay. Orbit is low end.