Hi
I’m in the process og trying to make a esp32 system that’s can adjust the flow on a 122097-00 motor it’s 120v ac and 16amp I would like to adjust the speed on the encoder I have on the esp32
I have tried with a ac light dimmer from robotdyn and and SSr 25da but the ac dimmer was to small 8amp I need minimum 16 
so do you have any recommendations of what i can use ?
Thanks in advance
It depends on motor. Universal motor can be regulated with dimmer, robotdyn has model with BTA24, that could be ok for 16A.
Be aware that these devices are not certified.
Do you have a link for that one from robotdyn and what do you mean that it’s not certified
And does I matter that the motor also uses 1800watts
No, but what matters is the type of motor. Not all of them can be regulated with "dimmer".
Not being certified, means that it's DIY circuit, not covered by regulations, not covered by insurance etc. Be careful and don't expose these kind of devices to people that expect to work on regulated conditions.
Thanks 
on the website it says up to 600v so if I understand correctly it’s not enough for my motor:thinking: this is the spec for the motor https://www.bisonametek.com/-/media/project/oneweb/oneweb/bison/modelsearch/importdata/documents/data-sheets/12209700.pdf?la=en&revision=6f711cef-ede2-4f10-84a4-aca0fe1fd399
Not enough for 120v motor? You need to study basics of electricity if you want to play with these kind of circuits.
Welcome!
Your link indicates a universal brush vacuum motor, with the fan assembly attached. I used these many years ago, driven with a solid state relay. My application was on or off. Those motor assemblies are very good and last a long time if properly maintained. The biggest problem was dust in the brushes, that was fixed with a filter. The second most important is air flow from the fan cools the motor so you will need a minimum speed to maintain this. You can attach a temperature sensor to the frame if you want.
For speed control you can use several different methods. For examples: triac, back to back SCR's, A SCR shorting a bridge, FETs in a bridge configuration or FETs shorting the bridge. You should spend a bit of time checking each of these configurations as they will all work and can be isolated from the mains with an opto coupler or a transformer. in the control connection to the driver device(s).
Let us know how you want to proceed we are here to help you. Also telling us about your application will help. Is this a one up or slated for production?
I found this one will that work or do I still need a ssr 25da ?
Thanks yes I know it need filters and so on I’m still in the process of building the control system with an esp32 I will put a pressure sensor and temperature sensor on also😁
The only safe approach for a hobbyist is to ask the motor manufacturer if it is possible to control the motor speed, and how.
Looks like the robotdyn module with bigger heat sink (better). What role 25DA has here?