Search found 87 matches

by PhilHornby
18 Dec 2016, 21:47
Forum: General questions
Topic: Calibrate the Netatmo Thermostat
Replies: 15
Views: 1677

Re: Calibrate the Netatmo Thermostat

Just in case you've not appreciated the difference - look at the scale of this graph, compared with the previous one. A slight ±0.2°c wobble, rather than the wild 3°c lurches when the Netatmo was in charge! I might wire the two thermostats in parallel, and let the Netatmo use its Predictive algorith...
by PhilHornby
18 Dec 2016, 17:01
Forum: General questions
Topic: Calibrate the Netatmo Thermostat
Replies: 15
Views: 1677

Re: Calibrate the Netatmo Thermostat

I have re-instated my previous thermostat - a Landis & Staefa aka Siemens CE1N2222E REV 11, designed in early 1999 and purchased by me in about 2004. You wouldn't think such an ancient device would come close to matching the Netatmo, would you? Here is a temperature log of my house, with said device...
by PhilHornby
18 Dec 2016, 14:13
Forum: Attaching the Thermostat to the boiler
Topic: Worcester Bosch 32cdi Greenstar Compact
Replies: 3
Views: 435

Re: Worcester Bosch 32cdi Greenstar Compact

I've no knowledge of the internal workings of the Worcester Bosch boiler - but from their wiring diagram, you can deduce that supplying 240VAC to the CH/LR connector fires up the heating. Hence my suggested method of attaching the Netatmo relay ... to do just that.
by PhilHornby
17 Dec 2016, 21:46
Forum: Attaching the Thermostat to the boiler
Topic: Worcester Bosch 32cdi Greenstar Compact
Replies: 3
Views: 435

Re: Worcester Bosch 32cdi Greenstar Compact

I found this diagram in the manual, which seems to match your existing wiring:- WB32CDI.png Based on that, I would say: Wire the Netatmo Relay's BLUE to "N", BROWN to "L". Also, wire either BLACK or GREY (it doesn't matter which) to "L" and the other (i.e. GREY or BLACK) to "CH". (So the relay is po...
by PhilHornby
17 Dec 2016, 14:09
Forum: Attaching the Thermostat to the boiler
Topic: Honeywell CM907 remplacement
Replies: 2
Views: 270

Re: Honeywell CM907 remplacement

Brown and Green are the wires to attach to the Netatmo ("A" and "B"). Insulate the White wire ("C").
by PhilHornby
15 Dec 2016, 18:55
Forum: Thermostat Network Set-up
Topic: Thermostat cannot find relay
Replies: 124
Views: 13796

Re: Thermostat cannot find relay

My wife is having the same problem it works fine on my mobile tried adding my wife as a user get halfway installing re the relay gets halfway then I get the x please can only one help she as the app and goes through the login Mine shows up in Bluetooth but my wife can't find it Regards I think you'...
by PhilHornby
15 Dec 2016, 18:43
Forum: General questions
Topic: Calibrate the Netatmo Thermostat
Replies: 15
Views: 1677

Re: Calibrate the Netatmo Thermostat

I had another play with this - this time using Hysteresis mode. At 13:00, I set the SetPoint manually to 19.5°c. The boiler turned on immediately and ran until 13:52. Despite the hysteresis control band being set to 0.1°c, the maximum recorded temperature was 21.6°c (Netatmo said 20.2°c, some time l...
by PhilHornby
15 Dec 2016, 01:16
Forum: General questions
Topic: Calibrate the Netatmo Thermostat
Replies: 15
Views: 1677

Re: Calibrate the Netatmo Thermostat

I thought I'd add some comparison data for the Netatmo, in use. The RED data was obtained from the Netatmo relay @ 5 minutes intervals, using the API (and the undocumented 'syncthermstate' call). The BLUE data was obtained from a DS18B20, in free air, and placed on top of the Netatmo. The system par...
by PhilHornby
13 Dec 2016, 02:25
Forum: General questions
Topic: Calibrate the Netatmo Thermostat
Replies: 15
Views: 1677

Re: Calibrate the Netatmo Thermostat

In the Advanced section of the Web site and phone app., you can " Force a Temperature Offset " to do this. However, you need to make sure that the room temperature has stabilised before doing so, as the Netatmo thermostat suffers from a lot of Thermal Lag. It appears that no one told Philippe Starke...
by PhilHornby
13 Dec 2016, 01:46
Forum: Thermostat Network Set-up
Topic: Wifi Config Options
Replies: 2
Views: 672

Re: Wifi Config Options

My guess would be not.

The config. program doesn't run 'in the browser' - it's a separate download. I didn't think Chromebooks supported this concept at all. Do they even have the required USB connection?

More than happy to be proved wrong though!

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