J
jasonjkd
Hi all Can I change a thermostat from a sunvic tlx2251 to a TLX7501.
Thanks
Thanks
Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws
View the thread, titled "thermostat" which is posted in UK Plumbers Forums on UK Plumbers Forums.
S
sonray ltd
yep
but what boiler are you running it on.
but what boiler are you running it on.
J
jasonjkd
It is a glow worm 38cxi combi, But my current thermostat has only got two wires 1 and 3 but the new one has got aspace for 3.
S
sonray ltd
you want 3 and 2.
3 is common (live call from boiler)
2 is switched live to tell boiler to come on
1 is off not used.
double check the instructions but thats it if i remember.
it is also low voltage.
3 is common (live call from boiler)
2 is switched live to tell boiler to come on
1 is off not used.
double check the instructions but thats it if i remember.
it is also low voltage.
Last edited by a moderator:
J
jasonjkd
D
Deleted member 2053
The tx7501 is spdt which means that it allows powering off as well as powering on. Most applications require a call for heat and therefore the advice given above is correct - leave terminal 1 unused.
J
jasonjkd
so what wire is which.
D
Deleted member 2053
If you only have two wires then it doesn't really matter except to purists.
Official Sponsors of Plumbers Talk
Reply to the thread, titled "thermostat" which is posted in UK Plumbers Forums on Plumbers Forums.
Similar plumbing topics
We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.
