Flexible braided gas pipe on boiler?
AL_n
The gas inlet is a short (12" approx) length of flexible hose, covered in
steel braiding. It has brass female threads at each end. Is this normal?
Why would a boiler need a flexible gas inlet?
TIA
Al
Andrew Gabriel
I don't think it's allowed unless it is specifically
supplied by the manufacturer for that purpose, and
documented as such in the Installation Instructions,
and thus has a GC part number.
Is that part of the appliance movable such that a
solid pipework connection wouldn't work?
--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]
AL_n
@dont-email.me:
>
> I don't think it's allowed unless it is specifically
> supplied by the manufacturer for that purpose, and
> documented as such in the Installation Instructions,
> and thus has a GC part number.
>
> Is that part of the appliance movable such that a
> solid pipework connection wouldn't work?
It is not actually part of the appliance; it is just screwed onto a
threaded inlet, so I assumed it was supplied as originally supplied.
Perhpas it wasn't. I do know that it was previously installed by a proper
company, as it was isnstalled under a welfare grant scheme, about 4 years
ago.
I wonderd if the flexible pipe was a necessity for some reason. I can't se
any reason why a solid pipework connection wouldn't work.
Al
Andrew Gabriel
Actually, another rule I just remembered is that appliances with flues
are not permitted to be supplied by a flexible pipe, as it might enable
the appliance to be operated when moved and disconnected from the flue.
However, the manufacturer can override any of these rules, which is
why you need to check the installation instructions.
Stephen
it might have been on bottled gas?
If not then it would be a filler loop with two check valves whcih are
present on both condensing and combi boilers. that do not have header tanks.
Regards
Stephen.
"Andrew Gabriel" <and...@cucumber.demon.co.uk> wrote in message
news:j3605k$fih$2...@dont-email.me...
Andrew Gabriel
"Stephen" <i.wan...@spam.com> writes:
> are you *absolutely* sure that gas flowed through this pipe? if so I suspect
> it might have been on bottled gas?
>
> If not then it would be a filler loop with two check valves whcih are
> present on both condensing and combi boilers. that do not have header tanks.
Both good points. The rating plate should have N20 on it (IIRC) if
it's intended for natural gas at the standard 20 millibars.
I don't know what the marking for bottled gas is.
A water heater won't have a filling loop, but it might
well have used flexible tap connectors for the water-in and/or
water-out connections. After removal, someone might have just screwed
one of these to any pipe connection on it just to stop it getting lost.
Of course, someone might have used one a flexible tap connector
illegally on the gas connection. I have heard of that once before.
AL_n
news:f7Kdnbu1TJkOXcvT...@brightview.co.uk:
> are you *absolutely* sure that gas flowed through this pipe? if so I
> suspect it might have been on bottled gas?
No - I am not sure, in retrospect! Below is a link to a photo. You can see
the braided hose at the left. The other two (copper) pipes can also be
seen.
I have downloaded the manual, but funnily enough, even the manual doesn't
specify what the braided hose is for, although it shows it in a diagram.
http://postimage.org/image/2tm4xlxc4/
Many thanks, and thanks also to the others for their input. I expect
someone can tell me which pipe does what, just from looking at the photo.
BTW, yes, it IS configured for UK NG.
Al
JohnW
> "Stephen" <i.want.s...@spam.com> wrote innews:f7Kdnbu1TJkOXcvT...@brightview.co.uk:
All the Brittony manuals I can find (Britonny 2 and Britonny FF) look
the same and the braided hose is marked water outlet, the middle
copper is the gas and the right hand copper the water inlet.
John
John Williamson
looks like an adjustable gas pressure regulator/ control valve, the
right hand pipe connects to a (Pressure/ flow sensor?), which is linked
to the gas control, and the braided pipe is on the other connection.
--
Tciao for Now!
John.
AL_n
news:318dc66f-357a-45d0...@z15g2000yqk.googlegroups.com:
Thank you very much..
-Al
Andrew Gabriel
I would guess the middle one is the gas supply, since it
appears to have a pressure test nipple, the the central
aluminium block looks more like a gas valve than the right
hand brass gubbins which looks more like it's for water.
However, you have to get hold of the _installation_ manual
(not just a user manual).
The flex hose may be because you can't easily access the
water connection hidden behind the control box.
Your picture also appears to show what I assume is a combustion
chamber seal, which has come adrift and hence not sealing anymore.
That has to be fixed (probably replaced) before it's used, and
the rest of it checked out too.
> BTW, yes, it IS configured for UK NG.
--
AL_n
> In article <Xns9F4D91CD...@130.133.4.11>,
> "AL_n" <fgdf...@fghfghfg.com> writes:
>> "Stephen" <i.wan...@spam.com> wrote in
>> news:f7Kdnbu1TJkOXcvT...@brightview.co.uk:
> However, you have to get hold of the _installation_ manual
> (not just a user manual).
Yes, I have got that, thanks.
>
> The flex hose may be because you can't easily access the
> water connection hidden behind the control box.
>
> Your picture also appears to show what I assume is a combustion
> chamber seal, which has come adrift and hence not sealing anymore.
> That has to be fixed (probably replaced) before it's used, and
> the rest of it checked out too.
Thanks for spotting that. Can you advise how to get it checked out? Should
that be done only by an (expensive) Chaffateaux depot, or will any local
plumbing firm suffice?
Al
Andrew Gabriel
I doubt they would have a facility to deal with whole units sent in,
as that isn't how gas appliances are serviced. A competent gas installer
should be able to service it whilst doing the installation, but you may
have difficultly finding anyone to install a second-hand gas appliance.
Obviously won't come with any guarantee even if you do. You may need
some replacement parts too, e.g. external flue if you don't have it or
it has been cut too short for your wall, and anything else which is
cut to size during installation, replacement seals, etc.