My CH will be a bit of a hassle WRT to airlocks - as I have a solid ground floor so all CH pipes will drop down to rads, the boiler and the cylinder from the first floor (also the roof as it is a dormer bungalow).
The pipe run I have in mind will be two perimeter legs about 18" above first floor level, the highest point in the system other than the header tank (ys, it will be a vented system).
Thus it would be an obvious point to incude bleeding valves or air removal traps on these legs, close to the final drop back to the cylinder (this will be a heatbank type system, so rads plumb directly to bulk of water in cylinder).
Is there any way to use a three port air trap chamber:
Done wrong, it is obvious that pump pressure will cause it to pump over.
Is there a "right way", such as in the return leg where I assume the pressure will be lower.
Or is there a more magic device - I don't know what those other parts on the same BES page are, eg Aerjec, Spirotech are - never seen those before...
By default, I was going to incorporate a manual bleed valve on the high legs, but wondered if there was an elegant automatic solution that would work with only a small head between the pipe and the tank?
Just curious...
Cheers
Tim