ICM ControlsICM102F DOM Timer, 10 Minutes Adjustable with 6" Wire Terminals

Our HOA has a large water feature that uses a 5hp pump which is VERY sensitive to quick power cycling and this unit works great at preventing the pump from seeing a fast on/off/on cycling of the power. Before installing this we lost pump after pump when the power would go out for sometimes less than a second and then return just a quickly. Delaying the restart until things have settled down for 5 minutes totally fixed the issue. Oh, yeah, about that blue water ... our landscapers got carried away one day and inadvertently turned the waterfalls into a giant "Tidy Bowl" experiment.

Easy do it yourself install… will end up saving your compressor if you’re in an area where once or twice a year the power goes off and comes back on immediately.

Perfect for delaying Air Cond. Compressor from starting at same time as 3/4 hp Blower Motor. Most generators can barely start a 1/3hp motor. Try EasyStart by Microair changes everthing!

First, I am not a professional, just a DIY'er. I already had a 24 V red hot line lead through a condenser overflow pipe cutoff switch so I connected the delay timer in series with that. After installing, cutting power, then turning on power (to reset the delay timer) I checked the hot line at the thermostat (SimpleComfort 3010L) and the delay timer (after the time I set) was feeding power to the thermostat. However, the thermostat itself had no display as if it were off. Tried turning on/off and no response. Removed delay timer and everything went back to working normally (so at least I did not break anything!!). The only thing I can think of is that the delay timer was using some power itself, then causing a slight voltage drop, and then the thermostat must need EXACTLY 24 V to work??? So maybe it was just my setup and maybe a different thermostat would have worked. I was not able to test if the delay timer would respond to a millisecond power drop from the power company which several times has caused my compressor to stop and restart instantly with a loud metallic noise until turned off - the reason I wanted the delay timer as my thermostat must not be sensitive enough to a millisecond power interruption.

Purchased to compliment a dual-relay setup I built to prevent both our A/C's from running at the same time while on a whole-house generator. (It was possible for both to try to start, if requested, immediately upon building power being supplied.) This is cheaper and nicer than I can build ;-) and works as advertised. I'd prefer an adjustment with a shorter max delay, since I only need 30 seconds, but this is still a good deal.

Quite Nice and works works as expected.