Shower Pump and RCD protection

[carlsreef]

Hi Guys

Can someone check this through please.

Putting the shower pump for an aqualisa quartz digital system in the wardrobe of the bedroom behind the bathroom. There is already a single plug socket in there.

In the instructions it says to connect to a 3A fused spur unit with no rcd.

I propose to change the socket to a fused 30ma rcd unit anyway to be safe as the main board is only protected by an old hager rccb which is 100ma.This will also provide discrimination on the circuit.

Does it need protection as will be connected by plastic piping to the shower and it is installed outside of all zones?

Regards

 

[sparkytim]

Just stick a plug on it with a 3 Amp fuse

 

[NozSpark]

First off you should be following the manufacturers instructions!

However if BS7671 said it needed an RCD and the instructions said not, then I'd be fitting one.

 

[sparkytim]

No discrimination will be obtained betwen a 100 m A RCD and a 30 m Amp, Only a time delay (S type) up stream can provide that.

 

[ProDave]

Why would the manufacturer specifically state NO RCD? Do they know their product has a high leakage current? Sounds dodgy to me.

 

[Doc Hudson]

I would be interested to see the actual manufactures instruction document to see exactly what they do say. Mira & Trition specifically state that an RCD should be connected on some of their shower pump installation literature.

Doc H.

 

[batty]

Don't think I have ever connected any shower that said RCD protection shouldn't be used plenty that have said it should be though.

 

[Noel1]

Nice sharing friends,

 

[flyingsparky]

BGB says follow manufacturers instructions, never heard of or seen anything that says No RCD though.

 

[m4tty]

Http://www.aqualisa.co.uk/upload/INSTALLATION%20GUIDES/Install_QtzDigExp_adj.pdf

Manufacturers instructions don't mention an rcd and dont say do not use one. just says install to bs7671. So you could just change the single socket to dp sfcu or use an rcd fcu which are about

 

[binky]

It's outside bathroom so would not require RCD unless manufactuer says so. However as you are modifying circuit I would argue you need RCD for circuit to comply with 'cables buried less than 50mm in wall' , unless you know the cables aren't of course.

 

[steptoe]

he only needs to RCD his cables, if indeed he has even buried any, sounds to me like a flex.