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  1. Wraxity

    Swapping Drayton RTS1 for digital thermostat - Wiring question

    Hi all. Im trying to replace my Drayton RTS1 with a digital thermostat. I can get power just fine, but I can't for the life of me figure out where terminal 3 on the existing block should be wired to on the digital thermostat. See below pictures. (this is for heating only, as water is...