After installing a garage unit i carried out a voltage test at the furthest point of the installation. i got a reading of 112.5 v L-N. I checked it L-E and got 242v.
I ended up back at the rcd and measured the live side and got 242v. When i checked the load side i got 112.5 v. I disconnected...
Hi all,
got a combi boiler with volt free switching for the central heating all working fine, I put a conservatory up and put underfloor heating in , I asked the plumber to put a value on the UFH pipe and the CH Pipe so I could control them separately , from a salas wireless programmable stat...
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http://www.electric-heatingcompany.co.uk/wp-content/uploads/2010/03/electric-boilers-tech-install-manual.pdf
Go down to page 8 of this document, you will see it asks for the contacts to fire the boiler up to be volt free, now i do finally understand i think what this means, it means that those...
im really struggling to get my head around this volt free contacts etc :(. i think im thinking too hard into it, is there any other really easy explanation to explain what it exactly means, as in for say a boiler or that?? please
Could somebody expalin why this " volt free contacts inside this electric boiler says volt free" but when the two cores leave from the zone valves will that not be 240 volts on those connections in the boiler??
Read more...
Hello, im struggling to get my head round this one, what is exactly mean by "volt free contacts", ive seen people saying that light switches are volt free? how can that be ?? when there is 240volts going through the switch if i was to measure between live and earth/neutral??
Could somebody...
We have fitted, a Heatline Monza 24KW condensing combi boiler. It has 24v and 240v connectors, although I'm lead to believe the 24v is just for the boilers built in controls.
The programmable thermostat is a Homexpert(Honeywell) THR870CUK, 7 day program, two wire, 'VOLT FREE' jobbie, that...
Seen an ammended control panel today sporting a bs 60898 DP type C 2 amp mcb controlling 24v dc.
Usually weidmuller etc din rail fuseblocks and links.
Something I am missing?
Boydy
Hi
I have replaced a halogen light with a new LED light on an agricultural implement .I now have one LED light and one other halogen light on a simple radial circiut.Both work fine for about 30 minutes,then the halogen cuts out completely
and the led flickers non stop.I switch off the...
Hello u bright sparks!!
Right iv been given a job this week wiring up a car ramp in a garage. This is on a 3 phase 400 v supply.
(this is only my second go at 3 phase)
Im going to be using 6.00 mm 4 core SWA cable and K.E.M Heavy duty isolators, to distribute the power.
My question is...
Hi, new to the site and not an electrician. I am planning to move to the USA in a year or so.
I just had a question about using UK 240V 50Hz tools on a US 220V 60Hz supply...basically is this possible? Is there any way I can avoid selling all my UK electrical tools and having to buy new ones...
Hi,
I need to rewire our Sky Box and CCTV System and I wish to use the existing conduit which currently houses five 240 volt main lines running for about 30 feet.
I'll be hoping to consolidate in this same conduit Ethernet cabling x 2, RJ-11 x 1, AV Cable x 2 and Sky Coax x 2. I am concerned...
Hello,
This is my first post, and I thought it best to come to a place where there are many electrical experts who can give quick pointers, as my profession is not electrical.
I have to set up a lighting system for a small market stall, but there is no access to mains power and the lighting...
hi, got a new job, doin boilers. A wee bit out of my element:P
Got a vokera combi to wire, i understand almost everything apart from the thermostat.
Its a danfoss RET230 VF2.
what do i need to wire this?
Wire into Live and neutral terminals on the stat?
Wire into number 2 and 3 on the stat?
Or...
Hello all.
The place i work is about to fit some festoon lighting around a project in the yard where i work. I do all the pat testing but am not sure how to go about testing the festoons. I seem to remember a couple of years ago speaking to a spark who worked for a sub contractor and he said...
Hi Guys, New to the Forum long time lurker first time poster, so please go easy on a newbie.
I am installing a Centralite system and the client would like some Low Voltage Lights run off the controller.
Centalite have said that I should only use Magnetic Low Voltage Transformers, but I am having...
I've got a very well made 24 volt, 50 hertz, 81 watt pump, however I do NOT have a transformer/converter. I'm from down-under, so we run on between 220 to 250 volts. Is there a nifty trick one can do to get this thing running on 240 volts? Can I put a different transformer in-line with a...
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