WOW! Amazing work! Glad you got it working and this was a very creative solution! Love the laundry basket test stand as well
Yes! I am trying to reduce soot levels by adjusting an air shutter, as well. Mine looks similar to this one - no screw or turning piece that adjusts air/fuel mixture. There is a sliding metal plate attached to the Bray's valve assembly that acts like a nut to keep the valve assembly fixed to the mounting bracket - doesn't seem to look like anything that would adjust air/fuel mixture. Confused.So, it looks like you have a different unit than the Radiance 2240 that I (and a couple others) have. Yours appears to have the same internals - the pilot & thermopile assembly & the injector are identical - but the layout is totally different and this really looks nothing like what I have. On my and 87yotaman's Radiance 2240, there is a metal tube that the injector pokes into, and on the side of the tube is a screw that you can undo and turn to open and close a slot which is what is used to control the amount of air that's being mixed in.
Yours doesn't appear to have an air shutter or that inlet tube at all - it looks like your injector is just pointed straight into what I assume is a pre-cast burner assembly or something.
I wonder if you could experiment with taking a piece of sheet metal and using it to try to block off some of that "hole" that the injector goes into, effectively reducing the amount of air that is going in. Imagine a throttle on a simple engine, right now your throttle is wide open so you are getting a lot of air with your gas, and if you can create some kind of a restrictor plate to limit the amount of air, that might give you better combustion (perhaps without modifying the injector at all, I'm not sure).
This is all just a guess though - on my unit, there is just a screw that you undo and a little tube-with-a-slot that you turn which opens or closes the slot and lets more air in or out (opening or closing the throttle, effectively).
YES! Call me 704-507-4104I have a propane injector and pilot. Anyone want to trade?
Iota,
I can't thank you enough for your time, research, sharing your findings, and most importantly - laying out the necessary information for people that maybe converting the opposite way from you (from NG to LP). Even though the information didn't apply to you, your findings help the community tremendously!
I will be converting a Radiance 2240 from Natural Gas to Propane. Your post probably saved the project as I was about to abandon it due to the parts issues with these older Vermont Castings models. I'm going to be reaching out to Ignus in the UK - fingers crossed they can supply the LP bray injector....
Thanks again!
Indexing/Keywords: LP30 NG30 000-5063 000-5062 0005063 0005062