Valve Pos

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SimonD
Posts: 4
Joined: Tue Jan 08, 2019 4:55 pm

Valve Pos

Post by SimonD »

Is there an explanation why my HR92UK Valve Pos does not match its value shown on the EvoHome Wifi Controller (ATC928).

To provide further details:
On the WiFi Controller I hold the Settings button for approx 4s and press OK to the warning message that allows me to enter the System Configuration Menu.
I press the System Summary button and it shows me that the Kitchen Valve is open 8%
However, when I enter the Menu for the HR92 valve in my Kitchen, and go to menu 10:1 Valve Pos it shows me the valve is open 42%.

Why are they not giving the same values?
Bart
Posts: 92
Joined: Thu Dec 28, 2017 12:18 pm

Re: Valve Pos

Post by Bart »

There is an explanation on the forum somewhere - the two parameters you inspect are not the same thing.
One (the value shown on the HR92 valve controller) is the valve position, the other one (the value shown on the evohome unit) is the heat request.
-edit- add link to other discussion: http://theevohomeshopforum.co.uk/viewto ... f=4&t=3941
SimonD
Posts: 4
Joined: Tue Jan 08, 2019 4:55 pm

Re: Valve Pos

Post by SimonD »

Thanks Bart,

That graph replicates what I had been experiencing and explains a lot.
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