New Central Heating Programmer

[finster]

Hi all,

I would like to fit a new central heating programmer although I'm not sure what I need. Here's a pic of it...

Anybody got any ideas of what model this is and what a suitable replacement would be? I've got a normal (i.e. not combi) boiler...

Thanks.

 

[wilhelm]

f.f.s.

 

[Softus]

The picture is of an ST699, but I have no idea what your post means.

 

[bster]

you will need a 2 channel (thats 1 channel for DHW and another for CH) 24 hr or 7 day programmer. I replaced mine with a Horstmann and i think it has an industry standard backplate so you will not even have to touch the wires just clip it on!

heres a 24hr programmer (all times are the same for 7 days), but a 7 day programmer will allow different times for each day, i.e. weekends would 'normally' be different to the times required for 'working' day.

http://www.heatingcontrolsonline.co.uk/product_info.php?manufacturers_id=13&products_id=302

 

[Nixt]

I replaced mine with a Horstmann and i think it has an industry standard backplate so you will not even have to touch the wires just clip it on!

R u sure Bster? On ST699 you link L - 5 - 8, can't remember seeing this on plate last time I replaced a Horstmann.

 

[wilhelm]

nixt. he's bombproof, read his caveat..........

I am an apprentice, so don't rely on my advice get a second opinion!!!

 

[finster]

Thanks for the help (sorry if I've posted an obvious question but I did check the wiki and do some searches first).

It looks like it might be easier replacing it with a ST799 to give me the ability to have different on/off times for different days...

http://www.homesupply.co.uk/proddetail.php?prod=Honeywell.ST799

I would have thought that this is a straightforward procedure?

 

[bster]

bomb proof

yeah dont forget to disconnect\link the wire things for 240V switching or something.




and dont forget.......................