| Hey NJ Trooper,
Question: What's the difference between a 'thermocoupling' & a 'powerpile?' I ask because the wiring schematic on the back of the cover refers to a powerpile rather than what I thought was a thermocoupling. In any case, you're correct, it's a powerpile.
I'm not sure if the L8148L aquastat has a AUTO / MANUAL switch. The only one I was able to locate is on the side of the aquastat facing the wall (small black up & down switch) & I didn't want to mess w/what I couldn't see, at least not until I posted this thread.
I double checked the aquastat model # L8148 'L' after not finding the 'L' designation on the Honeywell list of aquastats. It's definitely an 'L' & not any of the other indicated letters. It may be 'cuz it's an older model? I don't know.
Last & most important, It's working now & I'll tell you why. It was the water pressure sensor (presumably on the back of the aquastat). Isn't it 'achem's (sp?) razor' principle that says go for the simplist explanation first? Well due to a long history of air in the system, when I first fired her up I heard the familiar gurgle & added water from the supply line ignoring both the water expansion tank & the pressure guage. I figured the guage was old & not giving accurate readings (I had this problem w/a steam system). In any case, for some reason when I again started it up to troubleshoot, the boiler fired up. It fixed itself! (yeah right). I went upstairs for 15 minutes or so & then returned only to find the pressure release valve spitting, the pilot out & hot water on the cellar floor. D'oh!!!
I wicked love this website. Is there any way I could support it w/a donation or something? Thanks again!!! DAS  |