01-15-2025, 05:05 PM
I have several Espar diesel air heaters, a newer D2 and D4 that has the variable speed and starts up easier in very cold weather. I also have an older D4 that is the stepped speed fan and doesn't start at cold that easily.
I'm trying to use delta temperatures to maintain one space a little warmer than another. ie temperature inside my camper/storage is 2C above the outside temps. What can your Afterburner controller do?
Verbose:
I have disconnected my controllers and just running the analog wiring (red, brown-white, yellow, grey-red, and soon the external temp sensor wire (color?))
My current Arduino code is looping ever 5 minutes. Is the inside temp less than 2C above the outside?
{ Then turn on the heater (yellow hot 12V) for 20 minutes in a loop, currently logging to SD card/ website for developement}
else
{The turn off the heater for 10 minutes for cooldown]
If the temperature outside is below -10C, just turn off the heater, logging data every 5 minutes for development. Don't try heating the inside temperature when the outside it too cold.
I've got other aspects, like if the delta T is too large, don't do anything. Diurnal temperatures don't drastically move in 5 minutes.... Something is wrong.. Error... Don't run the heat.
Currently I'm battling the Grey-red temperature control voltage with the intake air temp in the heater. Not connecting the grey-red defaults to 0C control temp. I'll need to control the external thermostat and the control temps to max to force the heater into full power operation. Currently it's barely running on low. I want all full power to ensure that I don't carbon up the heater. On/off will be the arduino.
This control algorithm does work with my campers on/off propane forced air heater. The Espar is more complex than just Full on/ Full off control.
I'm trying to use delta temperatures to maintain one space a little warmer than another. ie temperature inside my camper/storage is 2C above the outside temps. What can your Afterburner controller do?
Verbose:
I have disconnected my controllers and just running the analog wiring (red, brown-white, yellow, grey-red, and soon the external temp sensor wire (color?))
My current Arduino code is looping ever 5 minutes. Is the inside temp less than 2C above the outside?
{ Then turn on the heater (yellow hot 12V) for 20 minutes in a loop, currently logging to SD card/ website for developement}
else
{The turn off the heater for 10 minutes for cooldown]
If the temperature outside is below -10C, just turn off the heater, logging data every 5 minutes for development. Don't try heating the inside temperature when the outside it too cold.
I've got other aspects, like if the delta T is too large, don't do anything. Diurnal temperatures don't drastically move in 5 minutes.... Something is wrong.. Error... Don't run the heat.
Currently I'm battling the Grey-red temperature control voltage with the intake air temp in the heater. Not connecting the grey-red defaults to 0C control temp. I'll need to control the external thermostat and the control temps to max to force the heater into full power operation. Currently it's barely running on low. I want all full power to ensure that I don't carbon up the heater. On/off will be the arduino.
This control algorithm does work with my campers on/off propane forced air heater. The Espar is more complex than just Full on/ Full off control.