Immermat flash replacement

Niall31 · 11-11-2024 07:36PM #1

There have been a few topics on this particular immersion timer, but I am looking for some help with wiring. There are two of these in my mums house, one for the water and one for the heating. One of them has stopped working and I got a replacement. Unfortunately it's a newer model and a straight wire swap is not clear. I hoping someone can tell me which wire from the original goes to which connector in the new one. Live in and neutral in are obvious enough, some one told me that NC and NO are normally closed and normally open, but that doesn't really help.

New one

Cheers,

Niall.

drury.. · 11-11-2024 11:46PM

Think it's just 1 , 2 and 4 that

Bundle all the the neutrals into terminal 2 , line ( loop live) into 1 and water or heating into 4

10-10-20 · 12-11-2024 10:34AM

Three lives in terminal 1 and three neutrals in terminal 2 might be tight. You could move one live wire into terminal 3 and the rest in terminal 1. Then bundle all three neutrals into a suitable screw block (go for 30A and double-over each of the wires) and then run a wire from that into terminal 2.

drury.. · 12-11-2024 11:59AM

Ya I missed a brown there

Wago make a push-fit that takes 4 solids or rip off a connector off old timer there if needed

drury.. · 12-11-2024 12:07PM

Neither timer above does anything different to an APT which is simpler for the average punter

Apart from the n/o on new timer . I can't ever recall a use for n/o on that type timer with the changeover linked internally to supply

10-10-20 · 12-11-2024 12:48PM

https://www.boards.ie/discussion/comment/122830218#Comment_122830218

Still not fully sold on push-fits for loads over ~10A, are you?

I keep thinking they are like Schrodinger's cat - neither connected nor disconnected whether you're looking or not. 😀

drury.. · 12-11-2024 01:18PM

https://www.boards.ie/discussion/comment/122830412#Comment_122830412

I was mostly retiring around the time the wagos came in

I'd still use quality thorsmann connectors for the few bits I do.

The science says wago are ok so I'd go along with that in theory

Any "power" connections though i'd be twisting the strandeds together or doubling back the solids and getting them under 2 thorsmann connector screws like you said old school methods.

If using wagos buy through the proper channels ie; reputable wholesalers and all should go well

drury.. · 12-11-2024 01:34PM

Think i missed 10-10-20s point there on loading

Just seen the poster says "immersion" timer

Immersion is a different ball game to boiler switching

Probably get a REC tbh if you're not competent on connections

Niall31 · 12-11-2024 11:24PM

Thanks a million for the replies, I really appreciate you taking some time out to help me solve this.

So if I get this right, the 3 live wires go into 1 on the new timer, (or 2 of them can go into 1 and the other into 3) . It's not clear from the picture I initially posted, but there is only 2 neutrals going into 2 on the old timer and they would go into connector 2 on the new timer. The live out on the old one goes into 4 on the new timer. The only thing I don't know is where the neutral out in the old timer goes?

Old timer

New timer

Old timer.

10-10-20 · 13-11-2024 09:31AM

Neutral is unswitched, it's just linked from 2 to 3 on the old, so can be bundled with the rest of the neutrals into a good screw type connector and then a short link passed from that screw connector to 2/N on the new timer. If you get my drift.

Niall31 · 14-11-2024 07:42AM

Thanks again, I think I have enough to go on. I'll be out at my mother's house in two week and I'll let you know how I got on.

Niall31 · 01-12-2024 09:55AM

I would like to say thanks to the posters who chimed in with their knowledge to help me get this done. Got the timer wired in and it's working. This is the Internet at its best, the altruistic sharing of useful information. Making some strangers life easier, because you can. I appreciate it lads.

Immermat flash replacement

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