Cheap espresso machine PID. Need help with wiring SSR

momirsarac

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Sep 19, 2023
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Serbia
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Basically as the title says. I wanna thinker with the machine and try adding stuff to it. This is pretty much how the machine is wired, but I'm not sure where the relay should be connected to since the current brew thermostat has 3 wires connected to it (attached image).
Thanks in advance!


Edit:
Ok, it just dawned on me that even tho there's 3 wires coming to the current thermostat, it's just 2 connections that should be connected to the relay output. is that correct? Does the orientation matter?
 

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    wiring PID.png
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