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The plumbers dont label what is the zone valve heating and what is the zone valve hot water what is one way of knowing which is which?

I am in need of info on how to put frost stats in combis and mostly the plan systems of boilers.On a combi I put a line and neutraul in to a frost stat and a flex between the frost stat and the pipe stat on a honeywell type is this right? seems to me the 2 cores between frost stat and pipe stat...

bull rush charts?

Well 3000 divide 230 is 13 amp I will put a sw spur on

read on site guide yes its a separate circuit right the isolation switch for immersion heater is it best being a double pole switch or switched spur with neon with the 2.5 heat resistant flex to the element. Im just thinking a switched fused spur (13 amp would blow)? with the immersion pulling...

so could i run a y plan controls and an imersion heater with a boiler all on the same 16 amp breaker its just ive seen the immeresion on its own circuit and the plan controls spured off the ring or 6 amp breaker off the board so both circuits are seperate?

Does anyone know how many amps a cylinder tank takes? Yes its fed off a 2.5 16 amp fuse 

Well I ask a question and I dont seem to get an answer may be I should have a word with the boss What time will I get home tmoz midnight! I will ask the boss about it

Right to be honest a think i am going to have a long day tomoz so what do I need an xl5 config drawing? A need help look I have done combis, y plans etc is it going to be anything like this and do I need a drawing before I leave the office

xl5 config ?look what exactly is this boiler im going to be doing what do I need to look for

today i did a combi it was down as cc 1xr 3xv it was just a wireless stat and programmer the ones I have mentioned in the title are my am and pm jobs.It mentions zoning in it will someone tell me what this is so I have an idea of what to do!Will I need a drawing?

Thanks il just put the rcd spur on and do away with the sw fused spur

Well what can I do then do away with the sw fused spur and put a 3 amp in that In the rcd spur that is

Nozspark I have looked it up in the regs and it shows the spur between a leg in to an fcu in 2.5 out of that feeding 2 sockets in 1.5 So I would say yes the way I said was ok.End of the day Im asking a question yes I will do anything to make it rcd change the breaker over on to the rcd side in a...

The thing is the rcd spurs are not switched thats why i wanted to put a normal sw spur on aswell?

 im saying is im going to be using a spur not directly connected to the ring to an fcu rcd spur feeding a boiler switched fused spur whats wrong with that?

Joint box on a leg of the ring for a 2.5 in to a rcd spur out of that to the boiler sw fused spur then flex to boiler is this allowed?In an instance where a boiler will be rcd protected but house sockets wont?

So am I allowed to put a joint box off the ring to an rcd spur then to the boiler sw fused spur?So just the boiler is rcd and not the rest off the house ring sockets?

I have got typical y,w,s,c plans for boiler supplys but the gear im going to be working with is honeywell and danfloss mainly wireless stats although some are hardwired.Just wondering is it worthwhile downloading the plans off the honeywell and danfloss websites or is it a waste of time as ive...

steptoe earlier mentioned if the joint box is not accesible it has to be mf, whats mf?Plus on these boilers in the bathroom as for an rcd to it the way I mentioned before joint box off the ring main to a rcd spur at the boiler position in to the boiler spur flex out to boiler is this ok?.Its...