Thread: Valiant/megaflo discharge

goldberk wrote: The drip is a good sign, because it means that the T&PRV is working. words fail me __________________ frankly my dear I don't give a damn

Agile wrote : The simple solution is to fit a 25 li potable ( white ) expansion vessel. The manufacturer recommends an 18 litre vessel for the 210 litre model.

thats what I'm thinking. Megatech heats from stone cold and brim full... drip drip drip drip drip. What it doesn't explain, is that reheating from warm, there's no discharge, but the expanding water must be going somewhere?! I'd contact the original installer, but he's gone to Canada...

Just to clarify as we are finally getting the salient information at last, what pressure is going up from 1.0 Bar to 1.6 Bar? I have concluded thats the boiler pressure! Is that correct? My view is still that increase is excessive and indicates an undersizing or problem with the boilers inbuilt EXV ( thats unusual on that model ). I did ask about the number and size of the rads but like a lot of other questions we have not received any...

DanDare wrote : The cylinder is a megatech CL210 solar, not megaflo. No sign of an EXV anywhere - except the one integral to the boiler (ecotec 624) Yikes - should I be evacuating the house?! Looking more like a Goldberk job every day. I would be concerned about who fitted it, and whether it was notified under part G, as someone has clearly fitted a potentially life threatening installation.

Goldberg wrote : Quote: Yikes - should I be evacuating the house?! Probably. Coldberk, you have once again proven your complete lack of understanding of heating issues. The worst that can happen with a failed or missing ev, is the prv starts dripping. Why don't you leave giving advise to those that have the qualifications and experience to do so? __________________ Free DangerMouth

Is your system a sealed system as the ecotec 428 is an open vent boiler ?

Goldberg wrote : DanDare wrote : (I mentioned the megaflo bubble as I'm not completely sure whether the discharge is from the CH/HW circuit, or from the megaflo heating from cold, and they both discharge through the same pipe - see my first post) Fair point, but all you need to do is uncouple the outlet from the CH PRV to see if water is coming from there. Clearly you need to do this when the water is discharging. __________________ 52nd...