I'm struggling loads with the installation of evohome... I'm struggling with the switching of the boiler...
So I have been doing some more testing of this today and the plot thickens ever so slightly.
I have 28 rads including 4 towel rails. My living room has 4 rads in it.. I set everything up on friday and the boiler was switching on but wouldn't switch off again
After reading many posts and advice here and on other pages... I did a complete reset on all devices... I reset the wireless receiver, I reset the control box, and I unbound all of the TRVs and followed the instructions to the letter... here is what happens.
I set up only the living room with one TVR bound to living room zone. I set the temperature of this TRV to 30, and the receiver light switches on to green, and the boiler fires up.
I set the TRV to 15, and the Green light switches off, and the boiler shuts down.
Repeat sever times with the same result. Perfect...
I have 4 rads in the living room. so I follow the instructions to now bind them in. I put all three to binding, then I go to settings, zone configuration, and living room. Then I click on RF Devices afget setting all three TRVs to binding... and this apparently binds the open three TRVs without using their thermostats.
I then set the temp to 30, and all three TRVs go to 30. The green light lights on the receiver, and the boiler fires up.
Now I set the temp to 15, all the rads wind down to 15... but the green light remains on the receiver, and the boiler remains on. If I manually override it the boiler switches off and the light goes out... but then 1 minute later it switches back on again.
I tried a complete reset and did it again, one TRV works fine, I bound 1 other, and it worked fine, I bound another and it worked, I bound the 4th and it wouldn't switch off. I unbind one at a time but it only works once I unbind all three and just leave the original one bound, then switch off manually and it stays off. Then the process works again if I set temp in the one trv boiler comes on again and off when I set it down .
I've tired clearing all the TRVS, and putting the setting to 12.1 then exit, which is supposed to be a factory reset..??? PLease, can someone tell me what the score is here..? I've literally been at this all day long....
4 radiators in one room. Doesn't work.
Re: 4 radiators in one room. Doesn't work.
I have 7 trv's in my living zone, HR92 mixed with HR80 and I have no issues with strange boiler demands.
When the issue occurs, what is the heat demand as reported in the evohome for this zone? There is a menu showing this info in the advanced settings that you access when you keep the settings icon pressed > 5 seconds.
It shows a per zone percentage, as well as a boiler demand.
When the issue occurs, what is the heat demand as reported in the evohome for this zone? There is a menu showing this info in the advanced settings that you access when you keep the settings icon pressed > 5 seconds.
It shows a per zone percentage, as well as a boiler demand.
Re: 4 radiators in one room. Doesn't work.
It is at 100%, since there is only one zone set up currently, so both the boiler control and lving room are showing 100%
Re: 4 radiators in one room. Doesn't work.
Hi Bart,Bart wrote:I have 7 trv's in my living zone, HR92 mixed with HR80 and I have no issues with strange boiler demands.
When the issue occurs, what is the heat demand as reported in the evohome for this zone? There is a menu showing this info in the advanced settings that you access when you keep the settings icon pressed > 5 seconds.
It shows a per zone percentage, as well as a boiler demand.
So I've been through the process again today and managed to get all my HR92's working through the house, testing each zone as I go and everything works fine. … THEN. I put all zones up to 35 by programming the custom button to do this on quick actions. When I then switched the quick action back off, the heating stayed on. I did what you said, I checked out the demand page, and whilst the radiator valves actually do say locally that they are now set at 16, on the demand page it says that living room, dining room and the landing are asking for 100% So the values are reading correctly, but the wireless relay box hasn't received the correct signal..? It doesn't look like these are resending every 4 minutes to correct...? So I've pressed the "AWAY" button on the control pad, but still the same thing... living room dining and landing say 100%. so whats the flow of data..? THe signal reached the valves and told them to go to the correct position, so why not the wireless relay box? Any idea anyone?
Re: 4 radiators in one room. Doesn't work.
The evohome controller (connected thermostat) is the central piece in all this rf communication, the relay box (I assume you mean the BDR91) is controlled from the connected thermostat.
Maybe you have rf issues? Is the zone set up as a single room or multiple room zone?
Maybe you have rf issues? Is the zone set up as a single room or multiple room zone?
Re: 4 radiators in one room. Doesn't work.
The room is set up as one zone, 4 rads attached. Nhave installed 11 zone throughout the house now with s total of 20 HR92's.
I went through installation again yesterday and as uninstalled I tested each zone one by one and each time got the zones to switch on and off twice then moved on to the next zone. I finished and was literally over the moon.
Then I set up the custom button to switch all zones on at 30. All HR92 get the signal fine and heating came on. Then pressed heating off and all HR92 valves went to 15, but heating stayed on.
Oe demand page said some zones were still at 100%. I went to these and removed the body of HR92 and manually turned the valve, literally it moved a fraction clockwise and then showed 0% on the demand.
This doesn't make sense to me as the valve moved alot from oened to.close, youd think if the valve wasnt shutting quite enough it would read 5% or 10% or something, but its failing because valves, and bit always the same valves, are still reading 100% when they have been told to close and arent quite fully closed. I went through the process before installing this of replacing all TRV valves, so I wondered if maybe I'd screwed some of the bodys down too hard and the valve csnt drive the pin fully down, so I went around and loosened them, making sure that the fully closed position was not tight to reach, and it seemed to make a difference perhaps but I'm not sure I'm convincing myself it helped when it didnt and I had to go away for work now so csnt retest anymore till tomorrow. I changed the channel of my wifi to 5 also last night which was something I read to try.. i also have a wireless alarm system in the house which I'm wondering if this is interfering.
I guess my question now is, the whole.. valve is on 100% demand thing even though its closed almost completly... does this sound like a physical issue or a feedback issue because why wouldn't it say 90, 70, or 5 %..? Its always 100% .
I went through installation again yesterday and as uninstalled I tested each zone one by one and each time got the zones to switch on and off twice then moved on to the next zone. I finished and was literally over the moon.
Then I set up the custom button to switch all zones on at 30. All HR92 get the signal fine and heating came on. Then pressed heating off and all HR92 valves went to 15, but heating stayed on.
Oe demand page said some zones were still at 100%. I went to these and removed the body of HR92 and manually turned the valve, literally it moved a fraction clockwise and then showed 0% on the demand.
This doesn't make sense to me as the valve moved alot from oened to.close, youd think if the valve wasnt shutting quite enough it would read 5% or 10% or something, but its failing because valves, and bit always the same valves, are still reading 100% when they have been told to close and arent quite fully closed. I went through the process before installing this of replacing all TRV valves, so I wondered if maybe I'd screwed some of the bodys down too hard and the valve csnt drive the pin fully down, so I went around and loosened them, making sure that the fully closed position was not tight to reach, and it seemed to make a difference perhaps but I'm not sure I'm convincing myself it helped when it didnt and I had to go away for work now so csnt retest anymore till tomorrow. I changed the channel of my wifi to 5 also last night which was something I read to try.. i also have a wireless alarm system in the house which I'm wondering if this is interfering.
I guess my question now is, the whole.. valve is on 100% demand thing even though its closed almost completly... does this sound like a physical issue or a feedback issue because why wouldn't it say 90, 70, or 5 %..? Its always 100% .
Re: 4 radiators in one room. Doesn't work.
I don't think that problems with mechanical fitting will resutl in strange heating demands.
How long did you wait for the heating to turn off? I did notice in my set-up that at times the demand seems to be slow in going down.
How long did you wait for the heating to turn off? I did notice in my set-up that at times the demand seems to be slow in going down.
Re: 4 radiators in one room. Doesn't work.
Well I'm only testing so waiting for it to come in.. leaving in in for 5 then switching off again.. however I did leave it for about an hour waiting to see if it eventually turned off and it didnt. The boiler ramps right the way down because the valve is physically shut to Rad.. so it's just the numbers that's causing the issue. I'm thinking more and more it's a communication fault you know... it's still confusing how the valve receives signal to do what I ask but the feedback is skewed. Its about half a day away from being reboxed and sent back though tbh...
Re: 4 radiators in one room. Doesn't work.
There is an rf test option in evohome.
Spacing between all the components is as recommended?
Spacing between all the components is as recommended?
Re: 4 radiators in one room. Doesn't work.
Yes. All of RF tests are excellent.. again a valve has never not recieved the signal.. that direction of data is sound.. it's the feeding back of valve positions that's constantly wrong. Everytime I send a signal the radiator valve is in the correct place.. even using menu on valve it says 0 but feedback recieved as 100... even after waiting and waiting. I've switched all devices, all wifi equipment off in the house.. still the same issue. Again, its not even the same valve doing it each time.. it changes. Between different valves. Ome that has failed to feedback is directly infront of the reciever in the hallway. Like the left hand of the hr92 has a clear and direct view to the reciever and it's not feeding back it position after 45 minutes