y plan heating system.

peter knighting · Feb 5, 2012

I currently have a y plan heating system with a honeywell st699 time set, it got knocked and has stopped working. I have been given a drayton lifestyle lp111si off a friend, is it compatable with y plan mid position valve heating system? I just got the programmer with no instructions. Any help would be appreciated.

steve.b · Feb 5, 2012

lp 111si is more for Combi boiler & is a single channel programmer, lp 522si would be the baby you require two channel (hot water-central heating).:26: cheers.

PC Electrics · Feb 5, 2012

why not just go and buy another 699?? Keep it simple!

boldspark · Feb 13, 2012

PC Electrics said:
why not just go and buy another 699?? Keep it simple!

Because the 699 is a hopelessly outdated model.
St9400c is much better and will improve performance drastically if installed and programmed correctly.

chris murphy · Feb 19, 2012

"Hello Peter",

I would agree with boldsparks - The Honeywell ST 9400C Programmer is a really good Programmer.

I am a Heating Engineer and that is what I have fitted for My own Home`s Heating System.

It has the Facility to Program either 2 On / Off Settings per Day for Heating and Hot Water or 3 On / Off Settings - this is Selected and Set when fitting but can be changed at any time afterwards.

There is also a `Holiday` Programming Feature which allows You to Program the operation of the Heating System to be Off for a period of Days while You are away from Home but then Come On to suit You coming Home - Very Useful for periods away from Home.

The Programmer has also Automatic GMT / BST Time Changes.

I hope that this Information will be useful to You and perhaps others reading it.

Regards,

Chris