this post was submitted on 03 Aug 2023
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What's your end goal? To be able to control the SWG with either the timer or shelly, or just monitor power?
If you just want to monitor power, leave shelly on all the time and don't use the switch input at all.
The SWG needs to be off if water isn’t flowing through it (pump off), per the manufacturer. :/
I considered deleting the timer entirely, but I don’t think the 1PM could handle the load.
Isn't there a flow switch? Mine has a Flow Switch as a safety feature that came with the cell. While I understand what you are trying to do, it is not safe for you or the equipment. If the cell has been on any significant amount of time with no flow, you have likely damaged it. See this Article
Appreciate the concern, but my safety or the equipment’s safety isn’t at risk here. The cell I have (Pentair IC40) has an integrated flow and salt sensor. If either are low, the system is off. The low power draw of the system is specifically what I’m after to know to check the cell to see why it’s not generating.
I just installed the Shelly this afternoon, which is why I’m posting after not getting the expected result out of the switch input.
Like he said, no need to use the shelly for switching if you only need power monitoring.
Or you can use a Shelly EM.