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Remote control pool heat pump Answered

I want to interface a esp8266 to my pool heat pump, the heat pumps all show 3 and 2 wire access. But it's not clear if i just put 12vac via a relay on the pins or not? Also the 2 wire connect appears to be digital?

Any advice would be appreciated.

Ps.. I have already had success controlling the valve actuators with 24vac and of course the pump with 120v relay. Just need advice on the heater.

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Downunder35m

7 days ago

Then please provide the info needed to identify the problem....