Rain Bird ESP-TM2 to Rachio 3 Installation Questions

Getting Started Before You Buy
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@keyvan - here are you answers (caveat, I didn’t have this model of controller when I migrated to Rachio):

  1. Yes - 100%. White goes to Rachio C, Blue goes to Rachio P/M, Red 1 - 10 go to Rachio 1 - 10. Orange wires are abandoned. Wireless rain sensor - see link below.

  2. Yes. It will function as a belt and suspenders option as Rachio will also use the forecast and reported rain for skips. The wireless rain sensor will catch the situation where a pop up shower hits your location, but not the NWS reporting station.

Here are the wiring instructions for the WR-2:

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