Un-vented cylinders servicing 10 x flats.....

[S.P.S.]

Hello, Im new to this forum and have a query for you all.

Firstly, I am not G3 trained. I am fully aware of the legislation involved and have worked with G3 qualified plumbers on un-vented in the past. (Its on my list, as I'm currently doing my CCN1, etc)

Secondly, I am not installing any of the pipe work associated with the cylinders.

Now.

I have just been to look at a job that I'm being contracted onto to take over from another plumber who was binned off.

The building is a 3 story block of flats with a large open loft. There are 10 x flats within.

The plan is to install all x 10 direct unvented cylinders in the loft so to save space in each flat. (not my idea of worth while)

I was not sure what everyones thoughts are on this. I personally will be installing all of the bathrooms and installing all of the cold feed and hot out 22mm pipe runs up to the cylinders ready for who ever they get who is qualified to install the cylinders.

No obviously there is the PRV pipework to consider on each, I am assuming that it can all be ran internally to the SVP? I am aware building control may have to be involved in this.

Now this job is a partly completed project with a change of main contractor, so all of the planning and what not has been done I am the bottom rung on this one!

It just all seems a bit weird to me, but as its no my thing I don't know how it all works!

Thanks

Stuart.

 

[Best]

Ignore the discharge pipework as it is not your responsibility unless you get told exactly what to install by someone getting info from the G3 qualified person.

 

[Best]

Just ask to have the contact details of whoever G3 person they decide on. Tell them any discharge pipework has to be the responsibility of the qualified unvented installer and as they could possibly have an entirely different idea to yours, you therefore will only fit the pipes to their spec.

 

[stevetheplumber]

the runs to the lower flats will require secondary returns or they will be waiting a week for hot water pumps will have to be in the flats of cables run from each flat if pumps go in loft

 

[S.P.S.]

Ok thanks for the help so far guys. I forgot to mention that the ground floor is a restaurant not flats, so no need to secondary return, plus all the cylinders are not equipt with a tapping for this!

I will get hold of the G3 guys details and chat with them about what they want to do.

Cheers.

Stuart.

 

[ShaunCorbs]

Ok thanks for the help so far guys. I forgot to mention that the ground floor is a restaurant not flats, so no need to secondary return, plus all the cylinders are not equipt with a tapping for this!

I will get hold of the G3 guys details and chat with them about what they want to do.

Cheers.

Stuart.

still have a feeling you will need a sr as anymore than 25 seconds you need one

 

[S.P.S.]

Ok bud cheers, Il have to bring this up when I next speak with the contractor. I think they've underestimated this job to be honest.

Thanks for the advice.

Stuart.

 

[steadyon]

Unvented cylinders require an annual service.

Who is going to be responsible for organising this, ensuring each flat owner / occupier is aware water may be off for an hour or two? Who will the cylinders belong to, the flat owners or the management company?

Really sounds like a recipe for a maintenance nightmare in a couple of years time.

 

[PlumbBobBob]

how do you know there won't be a sr tapping on the cylinders?

 

[Radioman]

Ok thanks for the help so far guys. I forgot to mention that the ground floor is a restaurant not flats, so no need to secondary return, plus all the cylinders are not equipt with a tapping for this!

I will get hold of the G3 guys details and chat with them about what they want to do.

Cheers.

Stuart.

Who's public liability insurance will you be under? I would check and see if yours covers you for the job, most have a building height limitation clause now.

 

[chris watkins]

Just for your info, safety valve pipework will not be allowed to discharge into soil stacks.

Who would see the valves discharging under fault conditions ?

Max 6 flats into a common discharge, plus one size larger than longest run.

(Well that is if BC actually know anything about G3)