I finally got around to installing a HR91 onto the radiator in my dressing room, the only one that didn't have an evohome valve on it.
When I installed the system a couple of years back, I changed all the radiator valve bodies in the house to brand new Honeywell Valencia ones. This dressing room radiator still has the old valve body, as I didn't change it at the time, but it is also a Honeywell Valencia, albeit an older one.
When using the manual TRV and when installing the HR91 (when I turn the black knob fully anticlockwise), the radiator gets scalding hot, so the valve body itself functions properly.
However, with the HR91 installed, it seems as if it closes the valve properly but does not open it enough to let the radiator get hot.
I can set the temp to 30 degrees and the radiator still stays cold, even though the evohome controller thinks the valve is 100% open. I've reset and rebound a few times and still the behaviour is the same.
I'm beginning to fear I may need to spend more money and buy a substitute HR92 where I can change the stroke mode, unless I'm missing something obvious here that I should be doing?
Anyone have any suggestions, or does this look like a stroke mode issue that can only be solved with a HR92?
When I installed the system a couple of years back, I changed all the radiator valve bodies in the house to brand new Honeywell Valencia ones. This dressing room radiator still has the old valve body, as I didn't change it at the time, but it is also a Honeywell Valencia, albeit an older one.
When using the manual TRV and when installing the HR91 (when I turn the black knob fully anticlockwise), the radiator gets scalding hot, so the valve body itself functions properly.
However, with the HR91 installed, it seems as if it closes the valve properly but does not open it enough to let the radiator get hot.
I can set the temp to 30 degrees and the radiator still stays cold, even though the evohome controller thinks the valve is 100% open. I've reset and rebound a few times and still the behaviour is the same.
I'm beginning to fear I may need to spend more money and buy a substitute HR92 where I can change the stroke mode, unless I'm missing something obvious here that I should be doing?
Anyone have any suggestions, or does this look like a stroke mode issue that can only be solved with a HR92?
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