How to add a T87 to an existing system?
In a room with 2 rads the temperature is currently being sensed by one of the HR92s and I want to replace the sensor with a T87 wall stat. I did it last year in a different room but can't remember what...
View Articledelta max)">Heating system in security mode "Error" because of EvoHome (T2 - T1 > delta max)
Hi there, I would like to get your opinion related to this issue I have. My ACV heating system is times to times getting an error message "B30" which means "T2 - T1 > delta max", meaning the delta...
View ArticleOutside Air Temperature sensorfor Evohome
Hi all, Had an Evohome zoned system for several years which works really well. Had one of these Oregon weather stations things to tell us actual OAT- that's just died and wondered whether possible to...
View ArticleValencia valve leaks and types
I had an unpleasant surprise when I removed an HR92 head and adapter yesterday - water started to come out, as did the valve pin. Replacing, and screwing down, the adapter stopped the leak but I need...
View ArticleWiser rooms and radiators
Ok so have had my Wiser system for some time and have found it to be really good. I have just bought some additional radiator valves and wondered if I can group 2 or even 3 together as a single room....
View ArticleEvohome - temperature dropping below the away value
Hi all, I am away and I have set the heating at 10 degrees until I'm back. This has been working perfectly for the past 10 days, house took a few day to cool down but then I could see in the plots that...
View ArticleMonitoring overnight in cold weather - Conrad Connect
Hi there, One thing I find useful when the cold weather comes in is to monitor the overnight temperatures of my rooms. I want them to be set low enough that the heating is not running in empty rooms...
View ArticleHN40 - Radiator valve power supply, anyone ever use this?
A while ago I converted by DHW CS92 sensor base to using a wired connection. I just branched out my Evohome wall mount's PSU and stepped the voltage down to 3.2V using a low noise regulator and fed...
View ArticleAdvice please: 7 Zone UFH with Combi Boiler
Hi all. IÂ’m very happy I found this forum! And IÂ’m looking for some advice please. I currently have an opentherm compatible gas combi boiler (heating 7 UFH zones) controlled by a basic timer and 7...
View ArticleVitodens 111-W DHW Control
Good afternoon all, Apologies for going around the buoy again on an already discussed topic. I have a Viessmann Vitodens 111-W boiler, Honeywell Evohome with BDR91 relay and HR91 TRVs. I work away from...
View ArticleDT92E Protocol - battery status
Does anyone know if a DT92E transmits its battery status at any time, and if it does, is it encoded the same way as other devices such as HR91/2? I've yet to see a battery status from mine, but I'm...
View ArticleHR92 Remove from one zone add to another
I am looking to do what I thought would have a quite simple process in moving a HR92 from one zone to another but saw an old post on here that was rather complicated involving deleting zones, etc which...
View ArticleIs my single zone UFH setup correctly?
Bear with me. Hopefully I'm worrying about nothing. Have had evohome for a few years but a new kitchen extension with UFH has left me confused. I've been running up the UFH in short bursts recently as...
View ArticleBest way to represent a Blind / blind state in Cortex
Hi All, Sorry if I'm missing something obvious, but how is it "best" to represent a blind / Curtains / Roller doors in Cortex? I've recently installed a motorised roller blind that I've got controlled...
View ArticleAccessing real time data on my Smart Meter.
I have just had a Chameleon IHD6 Smart meter installed. It is a CAD (Consumer Access Device) which I can connect to my wifi and it gets given an ip address. Sadly it looks like there is no way for a...
View ArticleBatteries for HR92s now Duracell Industrial batteries have been discontinued
I have been using Duracell Industrial batteries for some years, and have found them to work well with HR92s. I find some applications are voltage sensitive, like the HR92s so when those cells are...
View ArticleHelp with an odd heating system...
Hi All, first post! I have a bit of an odd heating system which I would like to upgrade with smart controls but I'm struggling to figure out which system will meet my needs. I have spoken to (or...
View ArticleBatteries for HR92s now Duracell Industrial batteries have been discontinued
I have been using Duracell Industrial batteries for some years, and have found them to work well with HR92s. I find some applications are voltage sensitive, like the HR92s so when those cells are...
View ArticleAutomatic bypass Valve plan, your thoughts
Since i installed evohome on an old system were only two thermostatic rad valves were fitted the system can get a bit noisy when all HR92,s have closed, so i think an Automatic bypass Valve could be...
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