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Is it good for a heater with an electronic thermostat to be controlled by an external controller? Does it lead to heater failures?
What affect does the constant on/off cycles have on the heater? Each time input power is cycled the heater goes through some type of initialization cycle. The heaters are designed to cycle their output, not have to have their input cycled. The tighter the control band applied, the more often the heater gets cycled.
Are external controllers inducing switching transients (voltage spikes, waveform distortion) on the heater each time the external controllers relay turns on or off? If so, what affect do these repeated transients have on the heater? Are switching transients something that controller manufactures have tested for as it’s something that can affect any device getting constantly cycled by the controller, not just heaters. It would be great if someone on the forum has access to a transient event recorder that can maybe get some waveform captures of different controller outlets cycling on and off.
I have started a separate thread to collect information on failures of heaters with electronic thermostats just to see if any insight can be gained. [URL="https://www.reef2reef.com/threads/electronic-heater-failure-database.570011/"]Electronic Heater Failure Database Thread[/URL]
What affect does the constant on/off cycles have on the heater? Each time input power is cycled the heater goes through some type of initialization cycle. The heaters are designed to cycle their output, not have to have their input cycled. The tighter the control band applied, the more often the heater gets cycled.
Are external controllers inducing switching transients (voltage spikes, waveform distortion) on the heater each time the external controllers relay turns on or off? If so, what affect do these repeated transients have on the heater? Are switching transients something that controller manufactures have tested for as it’s something that can affect any device getting constantly cycled by the controller, not just heaters. It would be great if someone on the forum has access to a transient event recorder that can maybe get some waveform captures of different controller outlets cycling on and off.
I have started a separate thread to collect information on failures of heaters with electronic thermostats just to see if any insight can be gained. [URL="https://www.reef2reef.com/threads/electronic-heater-failure-database.570011/"]Electronic Heater Failure Database Thread[/URL]