installing low voltage room stat

[djones]

hi

im just wanting some information about installing a condensing combi.

well more to do with the thermostat to be precise.

how do i go about installing a new low voltage stat? and what do i need?

thanks DJ

 

[corgiman]

what boiler is it?

use a honey well room stat or wireless one as they can be just switches

 

[djones]

boiler is a glow worm 30cxi

 

[meldrew's_mate]

I suggest using a programmable 'stat as they give greater user flexibility and tighter control than a mains 'stat used without the neutral connection (due to lack of accelerator function).

 

[djones]

what is a line voltage stat? and how would i wire this in?

do i just remove the link on the boiler insert 2 wires and take these to the stat and the stat works off batteries?

 

[bster]

we use Danfoss TP5's for these boilers, remove link and wire to terminal 1 and 3 on stat (doesnt matter which way around).

 

[ChrisR]

do i just remove the link on the boiler insert 2 wires and take these to the stat and the stat works off batteries?

Yes.

 

[gasgeezer]

You remove the link blue wire i think do not put 240v on this or you will blow the pcb.1normally fit the honeywell programmable stat CM67 with optional auto time module.The stat automatically adjusts summertime

 

[djones]

thanx everyone.

just one more qusetion.

what grade wire should i use for this?

 

[gasgeezer]

Low voltage lighting flex will be ok

 

[chrishutt]

Low voltage? Don't you mean low current? Otherwise known as 1mm² for cable or 0.75mm² for flex.

 

[kevindgas]

flex should not be used over any long distance , PVC cable of 1.0 Twin and earth is the correct cable you can buy twin brown or just sleeve the ends of the blue cable with a brown sleeve and do connect the earth as even a low voltage can kill you.