Temp probe to trigger

DrewPalmer04 · Post by **DrewPalmer04** » Wed Oct 03, 2012 2:41 pm

Is it a smart idea to have a temp prove trigger the return pump (relay 8) to turn it off? My home stays a constant 70 degrees. Thus I will have a probe in the emergency overflow PVC and once it reaches 77.5 (tank temp) it will turn off the return pump.

If so, code please?

jsclownfish · Post by **jsclownfish** » Wed Oct 03, 2012 2:52 pm

I use an ATO switch like this. It is a safety switch for a clogged return from a snail or debris problem. Depending on your pump, I don't know if the temp response would be fast enough. Otherwise it should work in principle.

Jon

DrewPalmer04 · Post by **DrewPalmer04** » Wed Oct 03, 2012 3:05 pm

I would set the off to 74.0 as the home never gets that hot

DrewPalmer04 · Post by **DrewPalmer04** » Thu Oct 04, 2012 12:21 pm

So...

if (ReefAngel.Params.Temp[T2_PROBE]()<740) ReefAngel.Relay.Off(Port8));
else
ReefAngel.Relay.On(Port8);

??

rimai · Post by **rimai** » Thu Oct 04, 2012 1:28 pm

See.. I knew you could do it

DrewPalmer04 · Post by **DrewPalmer04** » Thu Oct 04, 2012 1:47 pm

Haha thanks Roberto...

I wasn't too lazy to do it this time haha

DrewPalmer04 · Post by **DrewPalmer04** » Thu Oct 04, 2012 2:48 pm

Well crap. Should be > not <740

rimai · Post by **rimai** » Thu Oct 04, 2012 3:05 pm

no, it is correct.
you just got some extra () in there

Code: Select all

  if (ReefAngel.Params.Temp[T2_PROBE]<740)
    ReefAngel.Relay.Off(Port8);
  else
    ReefAngel.Relay.On(Port8);

DrewPalmer04 · Post by **DrewPalmer04** » Thu Oct 04, 2012 3:12 pm

So if probe less than 74.0 relay 8 off. Else On

I need if probe reads greater than 74.0 relay 8 off. Else on

rimai · Post by **rimai** » Thu Oct 04, 2012 3:32 pm

yeah, you are right!!
Why do you listen to me?
Go ahead and do it already

DrewPalmer04 · Post by **DrewPalmer04** » Thu Oct 04, 2012 3:35 pm

Hahahaha. I was confusing myself. Not your fault. Hopefully I'll never have to see this work anyway. It's for emergencies anyway

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