How To Wire Viessmann 050-w Opentherm or 240v switching

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How To Wire Viessmann 050-w Opentherm or 240v switching

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How To Wire A Viessmann Combi Boiler.
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@AllenHart999 2 жыл бұрын

Candlelighters children's Cancer Charity. www.justgiving.com/fundraising/cchleeds How to operate EPH control kzfaq.info/get/bejne/ntNxocmHqrupZac.html How to wire opentherm kzfaq.info/get/bejne/mJmln9mmv7zJl58.html How to wire EPH controls kzfaq.info/get/bejne/psuhfNuE2qqReqM.html

@GlenS123 2 жыл бұрын

Don't understand manufactuers today. You are a seasoned proffesional that was having a hard time following wiring directions. How are apprentices going to follow it? Great series so far.

@AllenHart999 2 жыл бұрын

Viessmann boiler instructions are not the easiest to understand. Thanks.

@IanHasler-cq5mf Жыл бұрын

For OpenTherm, check where the OT connections go to for X12 on the board (p26 of the Installation and service instructions) are connected on the 4-way terminal block. The Terminal block is not numbered in the instructions (unhelpful from Viessmann!) and the labeling on the black plastic should be ignored. Buzz them out with a multi-meter back to X12 on the board. I found the OT terminal on the block are 3 for OT- & 4 form OT+, unlike Alan's connection in the video which shows connections 1 & 2. Having changed to connections 3 & 4 .... the F95 error (no OpenTherm connection) has gone away!!!!! 👍👍 Also remember to change the "Operating Mode" (C.7) to 14 - OpenTherm, via the Commissioning, (p32 of the Installation and service instructions). 👍👍

@AlanClark-qf3gr Жыл бұрын

Same issue with my boiler, didn't work on OT terminals 1 and 2 , works on 3 and 4

@kevinmcindoe8856 3 ай бұрын

Absolutely correct with this board markings, the black plastic is marked up incorrectly and Veissmann know about it? I’ve just had this problem too but only just read the comments. Wired a Salus OT thermostat up to terminals 1 & 2 but also wired in the external temp sensor to terminals 3 & 4. Boiler wouldn’t work correctly when set to OpenTherm control on commissioning, showing a red triangle fault error 95, no connection to OpenTherm? Thought the thermostat was at fault, the service guy on help desk knew of this issue and said the chock block markings are upside down so swap them around. 1 & 2 for external thermostat and 3 & 4 for OpenTherm connections. All worked spot on after that! What about Quality Control or at least a memo with the boiler. 😮

@waynenixon729 2 жыл бұрын

Just been reading your story on the Yorkshire Post. Good luck with your goal of raising £1M for candlelighters. I'm sure you'll get lots of support from the people on this channel. Take Care.

@AllenHart999 2 жыл бұрын

Might take me a long time but I will keep plodding away. Thanks.

@sudhiradhikari19 2 жыл бұрын

Thanks for the video Allen, now I will be watching your previous videos like you said because it still hasn't gone to my head, I think will understand after watching them few more times.

@AllenHart999 2 жыл бұрын

Good luck.Thanks.

@gavinderbyshire5535 Жыл бұрын

Great, first one installed today. Couldn’t even get the cover off..😂 it helped a lot as we used existing controls.

@vulcancontinental 2 жыл бұрын

Good video. You can do multiple zones with EPH controls over OpenTherm, DHW too. Be interested to see the BeSMART connected to see what info the Viessmann can provide. The OpenTherm connections look like an afterthought stuck onto the back of the controls tray and the wiring and controls box a bit fiddly.

@normanboyes4983 2 жыл бұрын

Well explained Alan. I also thought that the casing seal looked to have been fitted rather ‘skew wif’ on a brand new boiler (top edge)

@AllenHart999 2 жыл бұрын

Hi Norman. Well spotted, Yes it wasn’t on very well. Thanks.

@normanboyes4983 2 жыл бұрын

@@AllenHart999 Not bad for a non plumber or a gas safe bod eh? Just a time served Marine Engineer.😉

@AllenHart999 2 жыл бұрын

@@normanboyes4983 You clearly have an idea of what to look out for. Thanks.

@SalimKhan-gk1fh 2 жыл бұрын

@@AllenHart999 I think you should ring viessmann and get a new seal kit sent down to you

@paulg2726 2 жыл бұрын

Great video Allen , please keep them coming 👍🏾👍🏾

@AllenHart999 2 жыл бұрын

Thank You

@christophechris2165 3 ай бұрын

Please add a video of the 100-w system boiler s plan plus wiring 😊

@giuseppepelella2650 5 ай бұрын

Dear Allen, How do you connect the Viessman Vitodens 100W 32 Kw to the Honeywell Evohome wifi thermostat?

@mattkaramccarthy677 2 жыл бұрын

This boiler also works with the ViCare wireless thermostat and the ViCare app. No wiring needed.

@DannyDL1ght 2 жыл бұрын

It’s true but the vicare thermostat does not have a display, you are forced to use your phone. What happens if you break your phone diplay or lose internet connection ?how will you control that thermostat 😅

@coltmanneil Жыл бұрын

We tried to connect the vitodens 050 to hive and we had to use terminals x12 terminals 3/4 on drawing boiler OTS , on hive receiver 1/3 , setting on boiler c7 13 in menu all good .

@coltmanneil Жыл бұрын

Oh and we had to remove link x96

@chengambj 2 жыл бұрын

You didn't mention how to wire outdoor weather compensate into the boiler connection block. Or is outdoor weather compensate control dead in the water nowadays?

@AllenHart999 2 жыл бұрын

Weather comp is wired in 3 and 4, I will do an updated video at some point Thanks.

@harryblack6002 2 жыл бұрын

Another great video Allen. As always 💪🏼 But that case seal looked pretty loose when you took it off, this is a brand new boiler ? Don’t know if it’s the angle of the camera mate. Just at the top of it

@AllenHart999 2 жыл бұрын

The case seal definitely needs attention. Thanks.

@vladimirstafasani4630 2 жыл бұрын

As always great video Allen👍 I found challenging as well taking the casing off. Didn’t help that Viessmann sent the wrong instructions with the boiler( older viessmann). I’m still not sure how to take the casing off. On Saturday I’m going to commission the boiler so hopefully I can take the casing off. Do you just push both the two catches up to remove the casing? Thank you

@dimik96 2 ай бұрын

Hallo, wie aktiviert man Warmwasser beim Wok-Typ Vitodens 050-w?

@darnamous-plomberieetchauf1209 2 ай бұрын

Hello sir I have a some boiler in Algeria and I have three errors 18 , 95, 49 and CL and the sensor of exhaust is not installed . How to start this boiler please help me 😊

@christopherclifford6402 Жыл бұрын

Hi Allen are you able to do a video on the previous Viessman 050 connecting to Google Nest and Opentherm?

@ThePommiecouple 2 жыл бұрын

As long as you have changed the settings to opentherm C7 :14 on commission app

@retrocarclub Жыл бұрын

I've just checked the wiring diagram on my brand new 100-w heat only and it doesn't look like it has the wires (only 3&4 for the outside sensor). Have Viessmann discontinued it or something?

@SheikhtarigjameelSheikh 2 жыл бұрын

Very nice۔ Thanks and regards۔

@AllenHart999 2 жыл бұрын

Thank You

@paulycc5449 Жыл бұрын

Hi Allen Can you remove the fly lead altogether if your wiring a hive in to work as on/off??

@petersteele46 Жыл бұрын

Hi can I use a Google Nest on a Viessmann Vitodens 050w 30kw Combi Boiler? Like your vids nice and clear and easy to understand even to me

@user-ip9wr4sc7v 10 ай бұрын

I bought a smart thermostat and only the two red and white cables come, the common blue cable is not connected to the boiler, so the smart thermostat does not work, what can I do, where do I install the blue cable in the boiler?

@AllenHart999 10 ай бұрын

Not really sure what you are asking?

@coltmanneil Жыл бұрын

Would love to know hot wire the 050 to a standard hive receiver 😢

@alexj5760 2 жыл бұрын

Great video 👍🏻👍🏻👍🏻

@danemilic3966 2 жыл бұрын

Hello Alan, is it possible to adjust the temperature of the boiler with the mobile phone.

@peadarohora2866 2 жыл бұрын

Thanks Alan excellent video

@daron8982 2 жыл бұрын

where in the boiler do you connect the wires

@Droneguy-be1fy Жыл бұрын

Thanks for the video. I have this boiler. It won’t let me adjust the DHW or the Heating loop temperature directly on the boiler, I press the up and down arrows but nothing happens. I wired it up for opentherm on my nest gen 3 is this why? Does it do automatically with opentherm instead and blocks out the manual adjustment? Thanks in advance

@kevinmcindoe8856 3 ай бұрын

OpenTherm will override the boiler front key settings, so do it on stat controller

@adlangoubid8198 Жыл бұрын

When connecting the nest system to open therm do you remove that 230 link that your normally remove for standard stat wiring or do i leave it in

@sinner_8779 Жыл бұрын

I removed the link on mine, but i have anoder problem, the pump its working non stop. The burner stops but the pump no .

@vinp2007 2 жыл бұрын

Hi do you have any idea why the 200-W does not support opentherm. Or does it?

@AllenHart999 2 жыл бұрын

you can definitely use opentherm on the 200. Thanks.

@vinp2007 2 жыл бұрын

@@AllenHart999 I am guessing this is not native opentherm as there are people who are saying it does not support opentherm, i am looking through various articles and blogs and there is just not much pointing to say it does, so is it through the KM BUS or something else? There are people saying that it invalidates the warranty. I am trying to find a system boiler that supports opentherm natively or if through another controller then that's fine providing it works well, but want to make sure i don't invalidate the warranty, this is for an extension i will be doing this year, so basically will be stripping the old one out and put a new one with ufh and radiators and try and get the best setup for condensing. Appreciate your input.

@rosstaylor4924 2 жыл бұрын

Thanks 🙏 for the video 👍

@sinner_8779 Жыл бұрын

Conected to opentherm but now the pump its working non stop. Any ideea why? Please help!

@puddle_puddle 7 ай бұрын

Did you ever solve this? (Hope so, it's been a year).

@vipergas5542 2 жыл бұрын

👍👍👍👍👍

@AllenHart999 2 жыл бұрын

Thank You

@madonion48 2 жыл бұрын

Why there's a loop on the on/off thermostat connection ? I now have an on/off thermostat linked there and I want to wire an opentherm one. I have to make the loop too ?

@turnah Жыл бұрын

did you work this out? I'm wanting to do the same myself

@madonion48 Жыл бұрын

@@turnah i didn’t use the loop, I removed it.

@alexsindrilaru6901 Жыл бұрын

@@madonion48 is the boiler functioning normal on open therm without the loop? I have the same situation now and I'm still not sure if the loop is really necessary or not. Thanks

@madonion48 Жыл бұрын

@@alexsindrilaru6901 yes, it works very well without the loop.

@MrKlawUK Жыл бұрын

Hi - just had a 050-w installed with a nest 3rd gen. Neat complaining it can’t detect opentherm and the boiler complaining about F95. Any thoughts? The boiler is just doing it’s own thing right now so I’m having to manually set flow temp

@AllenHart999 Жыл бұрын

You need the installer back. It may need setting up correctly

@sinner_8779 Жыл бұрын

C7:14 on settings

@MrKlawUK Жыл бұрын

@@sinner_8779 yep it’s on. boiler looks to be firing in continuous mode

@MrKlawUK Жыл бұрын

@@AllenHart999 he wasn’t too sure either. Wiring looked good to OT1/2, set with C7-14, nest set to opentherm but reported issue not detecting opentherm. Will need to wait until tomorrow

@AurelMariusSandu Жыл бұрын

Hi, did you solved it? I have same problem. OT on 1 and 2, removed jumper, set C7-14. F95 error appears.