I've just bought a 12lt expansion vessel to take over from the dead one in a Ravenheat CSI85.
There are only 4 rads and at a cold pressure of 1 bar the gauge shows a rise to 2 bars at full working temp.
Could you please tell me what the correct air pressure needs to be in the vessel to accomodate this range.
I haven't seen a leak from the prv but I'll replace it at the same time just to be sure.
Also what is the equivalent to Bar in Psi as I'll be using a tyre pressure gauge.
There are only 4 rads and at a cold pressure of 1 bar the gauge shows a rise to 2 bars at full working temp.
Could you please tell me what the correct air pressure needs to be in the vessel to accomodate this range.
I haven't seen a leak from the prv but I'll replace it at the same time just to be sure.
Also what is the equivalent to Bar in Psi as I'll be using a tyre pressure gauge.