I have moved into a small 3 bed property with a condensing boiler, radiator TRVs (except for those near the thermostat), a Grunfoss UPM3 L circulator and an automatic bypass valve next to the Megaflow.
The instller seems to have left the UPM in the factory default of proprtional curve 3. This doesn't seem to be the most efficient setting and maybe constant pressure would be better. However, how does this work with an automatic bypass valve ?
Any basic advice please?
The instller seems to have left the UPM in the factory default of proprtional curve 3. This doesn't seem to be the most efficient setting and maybe constant pressure would be better. However, how does this work with an automatic bypass valve ?
Any basic advice please?
