The short cycling is just happenstance. There's a long call for heat for hot water, then seconds before the heat call kicks off, the temp drops to kick the burner on. Burner runs for 4 seconds, shuts down. Then another zone calls - fires up again, and shuts down 10 seconds later after heat call is gone. Now the temp is near the low limit, and the burner finally stays on to bring it up.
Seems like rather than bolting an expensive, failure prone aquastat to the boiler, or 5 analog devices wired all over the place along with a 4006 I already have to keep coal out of the ash pan after an outage, there's got to be ONE SIMPLE device that can be wired in series with boiler power to just delay burner operation for 10 seconds, 30 seconds, or a minute. This can't be that complicated.
Is there a device to STOP oil burner short cycling?
- Rob R.
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You could use an off-delay relay, but you would still need to add a second high limit aquastat to protect you from the relay malfunctioning.
If you are adverse to wiring any additional controls it sounds like you should just live with the short cycling.
If you are adverse to wiring any additional controls it sounds like you should just live with the short cycling.
- davidmcbeth3
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SNIPSMITTY wrote: ↑Thu. May. 11, 2023 11:01 amThe short cycling is just happenstance. There's a long call for heat for hot water, then seconds before the heat call kicks off, the temp drops to kick the burner on. Burner runs for 4 seconds, shuts down. Then another zone calls - fires up again, and shuts down 10 seconds later after heat call is gone. Now the temp is near the low limit, and the burner finally stays on to bring it up.
on for 10 seconds, 30 seconds, or a minute.
Perhaps an option to consider is to lower the number of zones. Ex: if everything was one zone, controlled by 1 thermostat then this short cycling may be eliminated. It would be a simple experiment to try. And with Sharkbite, the labor is much lowered.