Over the weekend I finished what I thought would be the correct programming for my saltwater storage bin. I have a float high and low in the container. I have a solenoid that controls the RODI refill. The high float closes and energizes the solenoid to refill the container. I have the solenoid set up as a switch and that works fine. I also have a heater in the container that is also controlled by the high float. The heater is off when the high float is closed and on when the float is open. There is an alarm set up for the heater.
The piece that I have problems with is the mix/return pump. I have an external pump tied to the storage tank. I use it to mix saltwater and to pump NSW from the storage tank to my display tank during water changes. When I do a water change I want the mix/return pump to be off when the low float closes. As the water level rises when the storage container refills, I want the return/mix pump to ignore the low float and only return to operation when the high float opens. I thought I had this programmed correctly by using a spare output on a PC4 but today both the high and the low floats in the container are open as the container is full but the spare output on the PC 4 is still on.
Let me know how I should program this correctly if you understand my logic and/or operation.
Use the float switch function with the pump and have the pump turn on with the high float and off with the low float. I think this is the opposite of the RODI solenoid float switch function.
I currently have the pump set up as a multi-timer. If I set it up under the float switch function do I set up a timer to run daily to circulate the water in the storage tank?
You can set up the trigger timer to do that. I am not sure what the limit is. Set the on time to however long you want it to run and the off time for the amount of time that it stays off until the next run time. Don't change anything else on that timer though.
Danny I want to thank you for the help you provided me in completing some advanced programming for my RKE system. I have to admit that I did not understand at all the use of the spare or virtual outlet programming combined with alarms. But the end of last week I took the time to diagram the logic behind the programming you provided for my return pump at the beginning of this thread with the intent of applying it to my salt water mixing station pump. The flow diagrams I used turned on the light regarding this type of programming and I was successful in getting this to work over the weekend. You were right on but I didn't understand the logic.
Thanks again for all your help. You're my go to when or if I have need for system guidance moving forward. I toying with adding an ALC to control my SOL's and down the road looking at an AWC setup.