Electric shower replacement

SCOOP 64

Looks like my Triton T90si has given up working after 20 year's suppose I had a good run.

(This shower heats the water itself)

Thinking of replacing with a Triton T90si, woodies have them for€279, now thinking of fitting myself, would these have same fittings, electrics, water supply and wall fixing?, Would it be fairly easy to do. Thanks

witnessmenow

https://www.boards.ie/discussion/2058300722/electric-shower-replacement

I installed a t90SR in the last year or two and it came with everything needed. Depending on your wall, you might need to supply your own wall anchors.

I have some experience with electrics, im pretty handy at general DIY stuff but have very little experience with plumbing and I was able to do it fine. The hardest issue for me was figuring out how to turn off the water to the shower (there was no shut off valve, so I had to drain the water tank). Whats nice about replacing the shower if anything starts leaking, it will leak into the shower (hopefully) :)

John.G

https://www.boards.ie/discussion/2058300722/electric-shower-replacement

You quoted the same model replacement, the T90SI?, they are hardly still making the same shower 20 years on. You may have meant the T90SR which is a very good and quiet (SR = silent running) shower by all accounts.

SCOOP 64

Sorry your right I meant to say I was thinking of buying a T90 SR, now I have been offer a T80 easy fit for free , does this model heat the water, looking at a picture of one looks a different shape from my t90si

John.G

The T80Z Fast Fit is a mains (water) shower, not a pumped shower like, I presume your one is, fed from the cold water storage tank?, if so then the T80Z no good to you, its also a Portrait type shower whereas yours as you say is Landscape and so too is the T90SR, "Sleeper12" who knows everything about showers might reply to your post but I think you won't go wrong with the T90SR, here is a schematic of the water and electrical connection points. ( I have a T80Z)

Triton T90SR.pdf

John.G

I misread your post, you require (probably) a portrait type, I think Triton make a T900PI which may be more suitable, fitting wise, than the T90SR.

SCOOP 64

Thanks yeah my one is from mains water tank, just that i read description for the T80 easy fit "Suitable for Cold Mains Water Only" thought this would be suitable but as you say not a pumped shower as i think my T90si is.

SCOOP 64

https://www.boards.ie/discussion/comment/120711756#Comment_120711756

So the T90SR wouldn't be a direct replacement for the T90SI ?

John.G

Here are the T90SR Dimensions so probably OK by a bit of relocation?

The T90SI dimensions are:

Dimensions Height - 261 mm Width - 330 mm Depth - 104 mm

SCOOP 64

Never thought it would be this hard just to buy a replacement shower.

Went to purchase a shower today T90sr told him my old shower is a t90si, he said the cable must be 10 Sq.

I asked what's 10 Sq?, He said you're going from 8.5 kW to 9.0 kW, we have to tell customers has to be 10 square cable or not further than 30 feet away from the fuse box, most of the time customers have no problems, but we have to advise it.

Any more advice appreciated.

John.G

10 sq, 10mm2, refers to the cross sectional area of the cable, its recommended that 10mm2 is used for a 9kw shower but 6mm2 is allowable depending on where the cable is run, if its covered or buried in insulation then not allowed, the cable heats up when carrying large currents, a 9kw shower with 10M of 6mm2 cable will have a voltage drop of ~ 2.55V giving a shower output of ~ 8.9kw, no problem for the shower but the cable will heat up as its emitting ~ 100watts over its entire length which under the "right" circumstances might cause overheating. The RCBO/MCB should also be 40A as the total load will be just under 39A with the 6mm2 cable.

You should also check the cable run from your consumer unit/fuse box to the shower and see if the cable is buried under insulation or whatever.

SCOOP 64

Looking at cable looks to be 10mm in width going into shower not 6mm ,will check cable run in loft when turning off mains to disconnect old one.

John.G

THe OD ("thickness") of 6mm2 wire with insulation is ~ 4.9mm and 10mm2 is ~ 7.0mm.

SCOOP 64

That helps , that's what I asked when I went in to buy it but he did know the thickness of wire for 10sq, looks a fairly thick wire, that's why I thought it was 10m.

thanks for help .