External Room Thermostat for BIASI 24 S

[davidmadona80]

hi,

I would like to get an external controls for the time and temperature for the boiler. is this possible with BIASI 24s ? and which one is the cheapest item available or should be looking for on internet ?

Thanks a lot in advance. cheers

 

[Whitespirit66]

You need a programmable room thermostat, with volt-free connections. If you are looking for good value, go for wired, not wireless. Cheap wireless models are a mistake.

Connect the 2 switching wires from stat to terminals 1 and 3 on the connector block that's next to the mains supply block at back of boiler's control panel.

This is as cheap as it gets

http://www.heatingcontrolsonline.co.uk/tower-eco-et2-programmable-room-thermostat-p-436.html

If you want something better, look at Drayton, Danfoss or Honeywell.

 

[Whitespirit66]

And, don't forget to remove the link between connectors 1 and 3.

 

[davidmadona80]

Hi there , i am planning to install a room thermostat to biasi 24s boiler . However the loop/link in my boiler is connected at terminal 2 & 3.

1 Black - Neutral coming from boiler timer
2 Red - going to circuit
3 White - coming from boiler timer
4 Neutral - Live mains
5 Earth mains
6 Phase - Live mains

The 2 & 3 are connected by black wire.

Can anyone please tell me do i need to connect stat to 2 &3 or 1 & 3 ? ?

The stat is Salus Rt500Rf. Thanks

 

[davidmadona80]

Image attached