Hi
I have followed a number of the threads in this section and have found them extremely useful when setting up a new Honeywell Evohome system. However, I have found a curious situation of my own setup and I am hoping that someone will be able to advise me.
I have installed a Honeywell Evohome system with one controller and 14 radiator actuators
The set up uses all 8 zones with a number of zones containing multiple actuators with one in each zone set as sensor.
I have observed that the radiators in a zone appear to be controlled at different rates to each other. One radiator may be cool whilst the other is hot. This is a consistent pattern across all zones which have multiple radiators in (3 zones have this set up with the number of radiators up to 3 in a zone).
The correct temperature is achieved and all start and stop according to the controller times. It is purely during the running time that I notice this behaviour.
My issue with this is that within a zone two radiators in different rooms behave differently and so one room will get to the correct temperature but the other room doesn’t always. It doesnt depend whether it is the one acting as the sensor either.
In one of zones the radiator valves are identical but in the others the valves differ. I have tried setting the HR80UK to FULL operating mode but there is no difference. I have also tried swapping controllers and at first the rad that was closed now opens appearing to indicate that the HR80UK is set differently but after a day they revert indicating that the HR80UK is “correcting” itself again.
I am not sure if this is correct behaviour but if so it does appear to indicate that a zone must only be one room as the HR80UKs operate differently in a zone.
Any advice would be much appreciated.
BTW – brilliant system even if above is correct as finally have full independent control of each room - :-)
Many thanks in advance
I have followed a number of the threads in this section and have found them extremely useful when setting up a new Honeywell Evohome system. However, I have found a curious situation of my own setup and I am hoping that someone will be able to advise me.
I have installed a Honeywell Evohome system with one controller and 14 radiator actuators
The set up uses all 8 zones with a number of zones containing multiple actuators with one in each zone set as sensor.
I have observed that the radiators in a zone appear to be controlled at different rates to each other. One radiator may be cool whilst the other is hot. This is a consistent pattern across all zones which have multiple radiators in (3 zones have this set up with the number of radiators up to 3 in a zone).
The correct temperature is achieved and all start and stop according to the controller times. It is purely during the running time that I notice this behaviour.
My issue with this is that within a zone two radiators in different rooms behave differently and so one room will get to the correct temperature but the other room doesn’t always. It doesnt depend whether it is the one acting as the sensor either.
In one of zones the radiator valves are identical but in the others the valves differ. I have tried setting the HR80UK to FULL operating mode but there is no difference. I have also tried swapping controllers and at first the rad that was closed now opens appearing to indicate that the HR80UK is set differently but after a day they revert indicating that the HR80UK is “correcting” itself again.
I am not sure if this is correct behaviour but if so it does appear to indicate that a zone must only be one room as the HR80UKs operate differently in a zone.
Any advice would be much appreciated.
BTW – brilliant system even if above is correct as finally have full independent control of each room - :-)
Many thanks in advance
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