Recent content by donmar

Today, I went to Srewfix and bought the cheapest Drayton thermostat. I have replaced with a Sunvic and boiler fired up. After that I have replaced on the old Sunvic TLX 2259 (original one) and I blow the fuse. I put again the Drayton one (model RTS8) and boiler started working. Now I am...

Hi again in the New Year! I still have a problem with a boiler. As I wrote previously thermostat doesn't fire up a boiler when temperature drops. I have to move knob manually and it starts. Thermostat shows also wrong temperature, around 26-28 Centigrades when in the room is around 20. It was...

wiring

Good question. I have no idea how it was. Electrician said that everything is working but it doesn't. I suspect some wrong wiring. Can you tell me how Sunvic Pro 200 should be wire and where thermostat should be connect please? I have noticed that terminal 4 (which is CH off) on Pro 2000 plate...

1- common (red) 2-empty 3-demand (yellow) 4- Neutral (blue)

Hi, I have recently replaced my old Sunvic SP 50 on a new Pro 2000. At the same time I have decided to replace a room termostat TLX 2259 on a new model TLX9201. Since then have noticed thermostat can't fire a boiler automatically. Temperature in the room is well below 20 when click on thermostat...