BDR91 wiring in bathroom

[jonny5isalive]

Hi all,

Just wondering how people wire these.

The installation manual

http://www.honeywelluk.com/Documents/Installation-Guide/pdf/bdr91-instal-50034510-uk07r1009.pdf

seems to have the wiring as Spur- BDR91-Boiler with power to the boiler getting passed through the BDR91 rather than straight off the spur.

In reality the boiler always seems to be wired off the spur and the BDR also off the spur or off the boiler. Honeywell technical wanted it wired as per the diagram obviously.

Does anyone think it'll make much difference?

Have a sparky coming out to install a spur for a Boiler/ Honeywell One Zone on Monday and would like to sort out how we're going to do it.

Installed an ATAG E32ECX (IPX4 rated) in a bathroom. The plan originally was putting an IP rated fused spur in the bathroom for the boiler.
Now weve got the Honeywell The BDR91 is not adequately protected for a bathroom so would need waterproof container. Therefore plan is now to put the spur and the BDR91 in the kitchen (on the other side of the wall to the boiler). Then run the cables to the boiler.

 

[dancinplumba]

well done on the ATAG, think isolator should be next to boiler, just put receiver in kichen, does it modulate burner ? have you put WC in ?

 

[jonny5isalive]

Atag is beautiful piece of engineering. Really enjoyed putting it in.

Still waiting for pc to get the wc sensor in. Not put controls on yet so just temp control on front panel.

Re modulation I just put wc on an Intergas and set up the heat curve with their diagnostic software on the computer. You could see that modulate in real time.
Expected flow temp.
Actual flow temp
Outside temp.
Expected Fan speed
Actual fan speed

No return temp tho

Receiver get power from boiler then?

 

[tamz]

Do you know if there are any of these Atag reps (techs) in Scotland Dancin or do they not come over the wall. Never seen one or spoken to any one who has.

 

[Nostrum]

Which zone is it installed in the bathroom?

 

[jonny5isalive]

Zone 2

 

[dancinplumba]

Do you know if there are any of these Atag reps (techs) in Scotland Dancin or do they not come over the wall. Never seen one or spoken to any one who has.

Graham Samuel I think Tamz, on fb group Gasbook

 

[jonny5isalive]

Graham Samuel I think Tamz, on fb group Gasbook

Looks like he's from Atag heating technology who do the economisers? Not met my rep. Got it from pc. W h is great at technical.

 

[jonny5isalive]

well done on the ATAG, think isolator should be next to boiler, just put receiver in kichen, does it modulate burner ? have you put WC in ?

Went to put wc on on Friday. Put heating on and Burner was modulating much more than I thought it would. I'm not sure if it learns data about the system and uses it for future modulation or just modulates in real time. The latter I assume. Wc Curve is much easier to adjust than with the intergas. Would love to know if you can and how to bypass the deaeration cycle. Tried the two top buttons like on the economisers but no joy.