Baffled by this system? Can't see a pump...

[E4gas]

Are you a sparky or plumber

 

[galaxy_plumbing]

just wire what you have there. your 3-port valve switches between your hot water and heating and pump is in the boiler

 

[E4gas]

612 or R1

 

[jtsplumbing]

Ok, so you have a system boiler, the pump is inside the boiler, this will supply both the heating & hot water, if your not very good with wiring, probably better to leave it alone B4 you do some damage, was there a problem with the system B4 you started pulling all the wiring out ? is there a problem with the hot water from the taps, why are you messing around with something that you seem to know very little about, you do know its 240 volts you are playing with ! Please if you are uncertain leave it alone.

 

[Reg Man]

Grave concerns that if you don't understand the basics you could be dealing with something that will bite you on the bum.

 

[OGBUzzard]

Guys don't worry I've worked as a sparkys mate before I have a fluke tester and a live wand too. I'm perfectly safe just not an expert at wiring centres. Thanks for your replies though. S noo what does the 3 port valve do if the boiler switches between heating and hot water? Essentially the question I was originally asking is why in all the wiring diagrams I look at does it have a pump in the system, and can I just omit it and connect up everything else.?

 

[galaxy_plumbing]

maybe have a look at y-plan wiring, but be careful

 

[jtsplumbing]

In answer to your question, you are looking at the wrong wiring diagram, you need to understand how the system works B4 you start messing around with it, and working as a sparky's mate means nothing, a lot of electricians cant wire up a heating system.

 

[Reg Man]

Guys don't worry I've worked as a sparkys mate before I have a fluke tester and a live wand too. I'm perfectly safe just not an expert at wiring centres. Thanks for your replies though. S noo what does the 3 port valve do if the boiler switches between heating and hot water? Essentially the question I was originally asking is why in all the wiring diagrams I look at does it have a pump in the system, and can I just omit it and connect up everything else.?

Because all modern day heating systems are fully pumped.

 

[OGBUzzard]

Thanks guys yes it is a y plan. While they were having plastering done in the area where the old wiring centre was I wired the boiler up with direct feed from a temp plug with flex on a 3a fuse. I switched the now powerless motor to open and they have been heating up hot water by switching heating on (all rads are off at valves) for an hour or so. I thought that the cylinder acts as another radiator in the system and it seems to be working for them. So at the moment they have all or nothing but at least they can have hot water for next 48 hrs or so..