Pipe thermostat wiring please

[DERECK]

Hi everyone and merry Christmas I need some help with a pipe thermostat that's to activate circulation pump please as I don't understand the instructions as you can tell by the pic I uploaded I plan to order a new one and would be great if someone could repost the photo up with where each wire go's and the numbers on the stat from left to right are 2 1 3 and not 1 3 2 as printed on instructions thanks very much

 

[Ian1981]

It tells you at the bottom so common live or live from your hot water on from programmer terminal 1
Switched live that opens the hot water zone valve terminal 2 assuming it’s an s plan heating system?

How many wires are in the old cylinder stat?

 

[DERECK]

It tells you at the bottom so common live or live from your hot water on from programmer terminal 1
Switched live that opens the hot water zone valve terminal 2 assuming it’s an s plan heating system?

How many wires are in the old cylinder stat?

 

[buzzlightyear]

in order for the answer ,is it 2 core or three core to the stat .

 

[DERECK]

Hi sorry there no previous stat fitted its to activate just circulation pump fitted to multi fuel stove I wired it with blue to far right number 3 and my live feed to 1 witch is the center and then my live to the pump I put in far left number 1 then when it activated it blew a fuse and the stat

 

[Ian1981]

You do realise that you don’t simply connect a live and then a neutral as there’s no neutral connection on the stat
What you have are effectively a common live (Possibly fed from a programmer)and a n/o or n/c contacts.
The connections you want are 1 and 2 see my first post.

 

[buzzlightyear]

fitted to multi fuel stove

what muli stove did you fitted to ?

 

[Ian1981]

in order for the answer ,is it 2 core or three core to the stat .

Hopefully at least 3 core as that stat requires an earth to it

 

[DERECK]

It fitted to mulberry yates

 

[buzzlightyear]

Hopefully at least 3 core as that stat requires an earth to it

what I should have said 3 core and a earth .for the op to under stand .

 

[DERECK]

It's three core from pump

 

[buzzlightyear]

It's three core from pump

so basically show us the wiring diagram you are
using ?

 

[DERECK]

I posted it up three core pump going to the stat in pics is that what you mean?

 

[buzzlightyear]

so basically show us the wiring diagram you are
using ?

 

[buzzlightyear]

Switched live that opens the hot water zone valve terminal 2 assuming it’s an s plan heating system?

 

[Leesparkykent]

1 and 2 break on temp rise, 1 and 3 make on temp rise. So if you want the pump to kick in for high limit to disipate heat then you may need to use terminals 1 and 3.

 

[DERECK]

Ok thanks everyone for your help I will try some of things you told me and it is to kick on at high limit in case air lock or something disrupts syphonic circulation to uncontrollable heat sorce thanks very much