Hi all,
I installed an Evohome system a few months ago, it is an S-plan system with one BDR-91 controlling the zone valves for heating, and another controlling the zone valve for hot water. The zone valves then activate the boiler.
The zoning is working well, however with different rooms calling for heat all the time, the gas condensing boiler has been coming on very frequently and often only runs for a few mins. Since it has a pump overrun feature, the over run is almost always on.
Is this the way it should be? Or what is wrong with the system? Could it be that it needs another BDR91 controlling the boiler directly, for which I believe the number of boiler demands per hour can be limited?
Thanks in advance,
Gareth
I installed an Evohome system a few months ago, it is an S-plan system with one BDR-91 controlling the zone valves for heating, and another controlling the zone valve for hot water. The zone valves then activate the boiler.
The zoning is working well, however with different rooms calling for heat all the time, the gas condensing boiler has been coming on very frequently and often only runs for a few mins. Since it has a pump overrun feature, the over run is almost always on.
Is this the way it should be? Or what is wrong with the system? Could it be that it needs another BDR91 controlling the boiler directly, for which I believe the number of boiler demands per hour can be limited?
Thanks in advance,
Gareth
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