Switch 2 port Valve with Light Switch...........for project only

[Mark Wright]

This isn't for central heating really this is for a project
Can I switch a 2 port valve like bellow .I.e is the "Switch line" 230v?

MCB >>> Junction box >> Line, Neutral, Earth >>> 2 port valve
........................................>> Line split to Light Switch >>> Connected to SL/Orange of 2 port valve.

 

[Lucien Nunes]

If you mean a normal spring-return central heating valve like the Honeywell V4043, yes, the control input is 230V, it's just a small 230V motor. Note the colour code though; 230V on brown and blue opens the valve. Once open, the internal microswitch connects grey and orange together. There is no need for a permanent line feed unless you are using the microswitch to trigger something else, in which case PL goes in on grey and the valve will make orange live once open.

 

[Mark Wright]

Thanks for the Reply
So just connecting Brown and Blue to a plug with open the valve?

I thought orange was the SL? and this would need a live connection.

 

[Lucien Nunes]

Just connecting Brown and Blue to a plug will open the valve?

Yes. (and earth, preferably!)

Orange is the switched line out of the valve that normally controls the boiler / pump. The valve energises the orange when it is fully open, like a relay. When multiple valves / zones are in use, all the orange leads are paralleled so that when any valve opens, the system fires up. The brown control inputs that open the valves in the first place remain separate.

 

[Mark Wright]

Stupid me Orange is switch line out

Sorry I'm not really up on S and Y plan so what does grey do? This is a permanent live and Brown is the input Switch Line?

 

[Lucien Nunes]

See post 2!

 

[Mark Wright]

Brilliant Thanks

 

[Lucien Nunes]

What's the application?

 

[Mark Wright]

Just trying to get a better understanding of the individual components of a central heating system,Thanks

 

[PEG]

Hi,if you google john ward 2 port,you will get the low-down,on this topic,with an excellent schematic,of how the components,work,in relation to each other.