LP111 programmer

[fingertight]

Hi guys, can anyone tell me if the drayton LP111 programmer is compatible with a greenstar 28i combi? I've had a woman ask. . new system installed and combi only comes on when the programmer kicks in for the heating, when the "off" time comes on programmer, power to the boier is cut off, which means no power to combi at all, meaning no hot water. Sounds like the sparky has taken the main LNE to the programmer then the boiler?

im sure the main LNE should come from spur. .to boiler THEN to programmer. . .I think its the way its been wired is wrong, but sparky has said its the wrong programmer. .which im 99.9% sure its not, expert advice required!!! thanks.

Back to top

 

[aptsys]

It's been wired wrong. The boiler should have power from the spur at all times. There'll be a separate set of terminals for the thermostat to control central heating only.

 

[baz1968]

http://www.emanuelspence.info/Heating Boilers/Worcester/28I JUN INSTALL.pdf


Page 27 shows permanent live and connections for switched live from programmer and stat. The frost stat will not work unless there is a permanent live at boiler controls.

 

[fingertight]

thanks guys, i knew i was right.