Hi all.

Im just about to fit my Warmup UFH (loose wire) and the XSTAT thermostat.
A small question about the wiring up oif the XSTAT.... where the hell does the earth wire in the loose wire go (heating element wire). The loose wire has L,N & Earth, but cant see where to wire this in the thermostat? (I am using a dry lining box by the way, so no earthing here!)

As far as I can see, the wiring should be as follows (see wiring diagram from warmup site Warmup | XSTAT Installation | XSTAT Installation Instructions)-
1 - Live
2 - Neutral
3 - Feed to heating element wire (which colour wire, does it matter???)
4 - Feed to heating element wire (which colour wire, does it matter???)
5 - Master terminal (????)
6 - Floor sensor
7 - Floor sensor (which colour wire, does it matter???)
8 - Floor sensor (which colour wire, does it matter???)

Where do I put the earth from the end of the heating element wire?
Also, what the hell is fil pilote (fig 2a on warmup instructions?), and do I follow fig 2a, or 2b ???)

(I am well aware of the importance of multimeter testing of the system at all stages and compliance with wiring regs etc etc)

Many thanks
Geoff

I gather you are qualified to connect your ufh system..?...

You need to get a qualified Part P registered electrician to install this for you, unless your properly qualified then all you can do is lay the wires and run them into the backbox, let the sparky then do all the connections.

Geoff - Can only agree with the other lads and if 'you are aware of wiring regs' then get the electrician in!
Apart from the stage testing of the mat you also need the connection signed by the electrician to validate the guarantee!

Timeless John.

Electrician will do the final connection to power main, but need to connect all the other bits up to test it first (via a plug as described in the manual). I dont need to be qualified for this (or has the world finally gone mad?)

Originally Posted by blocko

Electrician will do the final connection to power main, but need to connect all the other bits up to test it first (via a plug as described in the manual). I dont need to be qualified for this (or has the world finally gone mad?)

I can see you doubt our advice and are going to test the mat above the level an unqualified layperson should do.
Would love to see Warmup proceedure telling you to wire up the plug and test the mat. No doubt it also tells you to wire in the floor sensor and install a fused spur socket!
I'am done here

Timeless John.

Originally Posted by timeless john

I can see you doubt our advice and are going to test the mat above the level an unqualified layperson should do.
Would love to see Warmup proceedure telling you to wire up the plug and test the mat. No doubt it also tells you to wire in the floor sensor and install a fused spur socket!
I'am done here

Timeless John.

No need to be so defensive John, I have been in other trades for numerous years and I AM NOT a bodger, and I appreciate any advice I get on here.
See Pg.14 here ... Warmup | DWS Installation Manual | Underfloor Installation Manual ....... I could swear it says to wire it up and test it!?!?! If I have misunderstood, then I will get an electrician in as you all suggested.

Thanks to all for your helpful replies.....and thankyou John for being so patient and helpful!

Originally Posted by blocko

No need to be so defensive John, I have been in other trades for numerous years and I AM NOT a bodger, and I appreciate any advice I get on here.
See Pg.14 here ... Warmup | DWS Installation Manual | Underfloor Installation Manual ....... I could swear it says to wire it up and test it!?!?! If I have misunderstood, then I will get an electrician in as you all suggested.

Thanks to all for your helpful replies.....and thankyou John for being so patient and helpful!

Page 4 of the manual states -

As with all electrical projects which are subject to Part P Building Regulations, all electrical work should be
carried out by a certified/qualified electrician. All work must conform to BS 7671:2008 and the current IEE
Wiring Regulations

maybe that is their get out of jail free card?

It also states this on page 4

As with all electrical projects which are subject to Part P Building Regulations, all electrical work should be carried out by a certified/qualified electrician. All work must conform to BS 7671:2008 and the current IEE Wiring Regulations.

Im not sure if you are able to set up a test scenario, I wouldnt know what size fuse is needed, or how to wire the stuff up to the plug, ive certainly never needed to wire up a heating mat to test it works, I use a multimeter to measure the resistance from a predetermined value as tested in the factory when packaged.

I wouldnt be touching it with a barge pole, if it goes bang after youve wired a plug to it and youve done it wrong i doubt they'll cough up for a replacement.

Im really quite gobsmacked that they would even suggest this in the manual to be honest, ive not fitted warmup before and dont think i will be in the future, Ill stick to the trusty Uheat supplied mats.

Ahh, beat me to it grumps....

Originally Posted by Oli

Ahh, beat me to it grumps....

Ner, ner, ne ner, ner!!!!

Thats fine, so I will multimeter test, then get the sparky in. Post answered (bloody hell that was hard work!) Thanks all, you are soo helpful and kind

Originally Posted by grumpygrouter

Ner, ner, ne ner, ner!!!!

......

i test the ufh like warmup tell you to. 5 amp fuse and wire plug up and use a plug in rcd. never had a problem doing it this way. get a sparky to do all the other connections though

I think using the multimeter is the far better and easier way of doing things. It saves you a lot of time in wiring the cables up to a plug, waiting for it to warm up and then cool down again before doing anything else.

Multimeter all the way!!!!!

Give Peter a call at uheat as he can sort you out with a good price along with a cable monitor for testing the cable while the floor is being laid

No UFH would be good sending gear out without manuals. Though the manuals are often for the sparky, not always for the homeowner.

If you can't make head-not-tail of the manual, it's probably electrical talk that an electrician would understand.

Pop over to our sparky forums and consult one of those if you're still unsure though personally I'd just get a sparky in.

Use a multimetre as said above to test contunuity whilst your installing it.

Give warmup a bell, see what they advise perhaps?

sorry to sound all down on you but you are aware that installing a product such as this without the reletive paperwork will INVALIDATE your home insurance, even if something else happens!
insurance investigators look for any fault in order to invalidate.. that is thier job! insurance companys never, ever, want to pay out!

just a thought!

Originally Posted by wayne

i test the ufh like warmup tell you to. 5 amp fuse and wire plug up and use a plug in rcd. never had a problem doing it this way. get a sparky to do all the other connections though

If you read the manual carefully it says do this test in accordance with the regs earlier in the book, regarding a "qualified person". Seems daft I know but apparently under the laws of this wonderful land of ours, you are supposed to get a sparky in to change a plug now!!!

apparently under the laws of this wonderful land of ours, you are supposed to get a sparky in to change a plug now!!!

Not true mate....You can change on a like for like basis but you cannot extend to a wiring circuit..i'e ufh systems and running in a new fused spur etc...but you CAN change socket/light face plates...plugs etc etc...

Originally Posted by blocko

No need to be so defensive John, I have been in other trades for numerous years and I AM NOT a bodger, and I appreciate any advice I get on here.

Thanks to all for your helpful replies.....and thankyou John for being so patient and helpful!

No need to be facetious mate - when dealing with electricity there is no place for novices.
If you do appreciate the advice from the forum a simple thank you is all thats required.

Timeless John.

Originally Posted by Dave

Not true mate....You can change on a like for like basis but you cannot extend to a wiring circuit..i'e ufh systems and running in a new fused spur etc...but you CAN change socket/light face plates...plugs etc etc...

That's good to know Dave...it was an electrician that told me that too!!

Originally Posted by timeless john

No need to be facetious mate - when dealing with electricity there is no place for novices.
If you do appreciate the advice from the forum a simple thank you is all thats required.

Timeless John.

Done

Originally Posted by grumpygrouter

That's good to know Dave...it was an electrician that told me that too!!

Never heard a sparky say that russ...maybe he doesn't want anybody touching anything....

Bad crack if you have to pay a sparky to put a plug on...

Originally Posted by Dave

Never heard a sparky say that russ...maybe he doesn't want anybody touching anything....

Bad crack if you have to pay a sparky to put a plug on...

Only MPs do that, 275 quid for changing a few light bulbs lol

back to the original thread though, multi meter and uheat cable monitor for me

I've just laid a warmup underfloor heating mat prior to tiling and followed the instructions in the manual myself. They recommend to test the resistance using a multimeter AND conecting to a plug to check it heats up, which is what I did. I turned the power off whilst actually wiring it to the plug, and have an RCD fuse box. Does this really invalidate the warranty??? AND home insurance???????

An electrician has installed the fused spur for it, put in the back box, supply wire, sensor wire etc. All we had to do was pull the cable from the UFH heating mat up through the conduit using the wire inserted for that purpose during the rewiring of the house. The thermostat and mat were left off initially as the house was being replastered. The sparks seemed to think it was ok for us to wire in the XSTAT and showed me what to do. It's barely more complicated than wiring up a plug, is it really necessary to get a sparks to screw in a few wires? If so the world really has gone insane.

We have a second larger UFH system in the kitchen, so it would be good to know before installing that.

Cheers, Alice.

A spark must complete all the connections and sign the work off....

Ouch. Expensive way of doing a tiny job.
This house renovation is costing a fortune!

http://www.google.com.au/url?sa=t&so...ultjEZHDrgyrGQ

there is a tester you can hook up to the wiring while you work on the floor if wire are broken it sounds an alarm will check on name