G
GeorgeBramwell
I came across a pressure reducing valve on the inlet to a filling loop set to 1 bar and the filling loop valves left open. It worked in that the pressure in the system did not go above 1 bar in the CH system.
I mentioned it to another fitter and he said he had come across it a few times. I know this is technically illegal because the filling loop should be disconnected. Both of us naturally quizzed the customer on who and when it was fitted. All were fitted Spring or Summer, when heating is not on. We came to the conclusion that the fitter in order to avoid a come-back to refill the system pressure when the system settles when the CH comes on. The service fitter will pick it up when they get a service contract and turn off the filling loop. Or, to avoid ripping up the place in order to find a minute water leak under the floors on the system.
Anyone else come across it? Quite clever, as it is auto top up. If the PR failed then the pressure vessel could burst as the system may go way over 1 bar, so not recommended.
I mentioned it to another fitter and he said he had come across it a few times. I know this is technically illegal because the filling loop should be disconnected. Both of us naturally quizzed the customer on who and when it was fitted. All were fitted Spring or Summer, when heating is not on. We came to the conclusion that the fitter in order to avoid a come-back to refill the system pressure when the system settles when the CH comes on. The service fitter will pick it up when they get a service contract and turn off the filling loop. Or, to avoid ripping up the place in order to find a minute water leak under the floors on the system.
Anyone else come across it? Quite clever, as it is auto top up. If the PR failed then the pressure vessel could burst as the system may go way over 1 bar, so not recommended.