Recent content by radllc

Tha That is a great question. I am not sure of the order of operation or if it is simultaneous; but I get your point. I probably should just use a three position switch and two separate contactors - one contactor for 120v, one for 240v, and an off state.

Appreciate the response, thank you!

Any reason not to use this contactor for a simple 120 to 240v element control switch within my 220v PID based controller? Plan is to switch the coil a1/2 with a 10amp rated 22mm selector switch. The In-bound neutral would be tied to R1 and the in-bound non-ssr hot leg of 240v would be tied to...

It is really was just the preference on the hole size (22mm)and nothing more. I have decided to go with the Auber one.

Thanks, Yes in the USA. Not having any luck finding the above style in that resistance.

Can this style Potentiometer be used to drive a SSVR? I like this style better as I am punching into my current controller. I am looking at 500KOhm version. The first link is the potentiometer and the second is the SSVR I intend to use. It is going to be used for controlling the voltage on...

Thanks Bobby, that was the design I was thinking about above. I suppose I could leverage my current PID panel that has the easier DSPR 120 within and then cut in a SSVR in series to it? If I were boiling, I could keep the power on the SSRV at 100% and only adjust it when needed when I am...

Super helpful....Thank you! I already have a DSPR120 240v panel that drives an element with an on/off switch for pump control. Probably the best option then is to remove that PID and replace it with the DSPR320 to drive a RIMS 240 element versus building an entirely new controller that is 120v...

I think I answered my own question. There are no PIDs that I can find that allow both PID and power control at the same time other than the DSPR-320 when mashing. I think this will work to build a controller with both a SSR and SSRV in a series. That way you can attenuate the power of your...

Hi All, working on a new RIMS build. I am trying to find a controller that can control both power (percentage of power delivered) and pulse width separately to the element. I am not finding a controller or PID that can do this. The DSPR-320 comes close but is complex. Looking for really...

Thanks all for your help / replies! @passedpawn, in your diagram, my understanding is you are switching the hot inputs and my ground and neutral (which is not shown) come into my pump externally / outside of the relay. Being new to relays, is it okay that the two hots could be energized at...

I am going for efficiency as much as possible in my design. I have read a ton of schools of thought on this - but won't recirculating the pump only when needed to lower the temp of the coolant be sufficient enough? I am thinking about going with an external self-priming pump vs a submersible...

The two inputs are 110v and the single output is also 110v. Couldn't I accomplish this with only two relays on the input side? If either input is switched on or both are switched on, the output or the pump in my case is energized. Edit: The diagram would look like this. Wouldn't this work...

I think I figured this out. I can use relays to do this.

I am designing a glycol chiller with a 5,000 BTU A/C unit. I would like to have only one pump with two relay temperature controllers (eg a Baylite controller). The first temperature controller will turn on a pump and the A/C unit only to recirculate the glycol until it reaches my set...