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Perfect - that explains it. I had assumed every device would need a unique address from any other device even those of a different type, being as they shared the buss. Presumably missing addresses isn't permitted, hence my RIO not initially working.

Changing the RIO to address 2 has brought it online - thank you both so much. So, just for my own curiosity, what's the deal with RKP and RIO addressing? My installation manual says that RKP's use addresses 0-3 and RIO's 2-5, but at the bottom of the table there's a note which says no two...

System info has confirmed it's definitely a 2-20! If I have RKP's on addresses 0, 1 & 2, is the next lowest address I can use for the RIO not 3 (which it's currently set to) rather than using 2 as you've suggested, or does it differentiate between RKP and RIO addresses?

Just checked again. I'm pretty sure the panel is a 2-20, as the sticker in the centre of the EPROM says '20 zones', and the keypads are set to 0, 1 and 2 and the RIO is set to address 3. I moved the address dial on the third keypad and put it back on the same value, and this time it's picked...

That is a good point. My initial reaction to your post was that I'd made a typing error, but now I'm not so sure. I ordered it as a 2-20 (five years ago) knowing it was to be eventually expanded. If it is a 2-12, then you're right, but I thought it was a 2-20. Might explain the third RKP not...

The RIO is address 3 - the RKP's are addressed 0, 1 & 2. My manual says that this should give me zones 1031 - 1038 on the RIO.

I'm trying to add a RIO and an additional RKP to an existing Galaxy 2-12 installation. I've chopped into the data buss and wired the new RKP and RIO in, but the RIO isn't being registered when I exit engineer mode and the keypad is showing stars indicating data loss, but the existing RKP that's...

It's in England. I was really thinking about what I may need to prove that it had been done by a Part P qualified electrician, as otherwise who's to know that I didn't do the work myself?

We've just had two bathrooms refitted, which has included new spotlights being fitted, an in-line fan with a new on/off switch on the landing and an electric shower wired onto an existing isolator switch in the airing cupboard. Should I expect any paperwork from the bathroom company who have...

Does anyone know whether MK manufacture a dimmer module that will fit into a grid that is suitable for LED downlighters? Total load will be 4 fittings @ 7w on each. So the max load presented to the dimmer will be 28w. MK's site say the K4500 & K4501 modules are suitable for wire wound and...

Thank you everyone - RCD is already provided via split board.

Thank you everyone, and if I've not misunderstood, with a 40A MCB, a 9.5kW shower can be installed safely and compliantly (which will more than suffice for our occasional use requirements).

Regarding MCB, they have no idea what it's rated at. They haven't asked, or looked at the CU. The cable is currently terminated in the local isolating switch, as some time ago I removed the old electric shower when we had one connected off the hot water supply. It's being brought back into...

We're having a new bathroom fitted, and the company doing the work have automatically said that the existing 6mm cable will limit us to a 7.5kW shower, before they knew anything about cable length, bunching etc. They're just doing a 7500/230 calculation. My copy of the reg's is 16th edition...

We have a Baumatic B904.1SS-B double oven approx 7/8 years old. The base element in the top oven has gone (not the main fan oven). Looking at spares websites it appears that Baumatic have gone, and that this part is no longer available. I wondered if anyone knew if any alternative...

Thank you all. The running coupler is what I need, which after typing it into google makes me realize that it's no different to a 'normal' coupler, it's just that little bit of knowledge about how to use one with a lock nut that I was missing. Fruit cages are well over £100, and with a 3.7m...

I've never used galv conduit before, and wondered if there is a trick to creating a complete square or rectangle using four angle boxes. Is there a way of getting the fourth corner joined up with a special reverse thread nipple or something, or is it just not possible? I was thinking of...

Only received quote as a verbal at the moment, a written copy which I assume will have much more detail of what is included is to follow. I'll report back once that's been received. I've always thought lightening conductors on Churches were unnecessary, particularly as for insurance purposes...

My local Church has been quoted £1500 (I assume plus VAT) for a periodic inspection from the company that carried out the last test (seven years ago -oops). Is there a rule of thumb calculation for working out whether it's good value or not? Number of circuits multiplied by x or similar...

Got it - page 16 for me. Thanks for the info - those pesky 'notes'.