OpenSprinkler › Forums › Hardware Questions › 24VAC transformer has 3 wires instead of 2 › Re: Re: 24VAC transformer has 3 wires instead of 2 July 2, 2014 at 1:31 am #27423 ramblinwreckParticipant Thanks Biaggi. I appreciate the explanation. 🙂 Glad that I’ll be able to reuse my existing transformer.
