Hi,
I have sealed central heating system with Keston condensing boiler. I've drained the system recently and refilled it. I've also set my EV pressure to ~1Bar (15psi) when the system was drained. After I've bled all the rads and pump few times I'm experiencing the 0.3-0.4 Bar instant pressure drop (from 1.2 Bar pressure when it is cold) when the pump starts from cold. Could you pl;ease advice what is causing that?
Thanks
I have sealed central heating system with Keston condensing boiler. I've drained the system recently and refilled it. I've also set my EV pressure to ~1Bar (15psi) when the system was drained. After I've bled all the rads and pump few times I'm experiencing the 0.3-0.4 Bar instant pressure drop (from 1.2 Bar pressure when it is cold) when the pump starts from cold. Could you pl;ease advice what is causing that?
Thanks