Drayton Digistat+ 3 hard wire problem

[Dave Box]

Hi Tamz, Job done, and Many Thanks for your info help.
Best Regards
Dave Box

 

[Inverness]

Hello. I've purchased the Drayton digitstat 3 battery model to replace my Honeywell cm51 programmable thermostat which is already connected to a combi boiler.
Can someone take the time and explain if it's a straight swap or will I a eletrician in?
I am in 2year apprenticeship of svq plumbing and heating and I'd like to see if I can do if I get the proper advice of you guys. My boss never does the electrics we always use a sparky. But I'd like to learn. We haven't yet been taught it in class yet just the basics of earthing.
I'm sorry it is a day of rest but i do appreciate if someone can teach me so I can have the programmer working today.

Thank you

 

[ShaunCorbs]

how much time you got ? take the front off the cm51 and take a pic please (of the wiring)

 

[Inverness]

There is one red wire and one black wire. There is also a earth wire which isn't connected.

 

[ShaunCorbs]

There is one red wire and one black wire. There is also a earth wire which isn't connected.

as its plastic it wont require an earth now can you take a pic of the new stat wiring connections if poss?

and red in the a and black in the b?

 

[Inverness]

I can't seem to paste the photo and send too you. The Drayton connections has 3 connection point. C,
Load on,
Off.

 

[Inverness]

If you can send me your email address I can sent the photos that way?

 

[Inverness]

 

[Inverness]

[DLMURL]https://mail.aol.com/38947-111/aol-6/en-gb/mail/get-attachment.aspx?uid=28540542&folder=Inbox&partId=3[/DLMURL]

 

[ShaunCorbs]

 

[ShaunCorbs]

c terminal red wire
on terminal black wire

but make sure the power is off

pg4

[DLMURL]http://www.draytoncontrols.co.uk/WorkArea/DownloadAsset.aspx?id=10442[/DLMURL]

 

[Inverness]

Will this all I need and it will work?

 

[ShaunCorbs]

Will this all I need and it will work?

unless you have problems it should

as its a battery unit it doesnt need power it works like a light switch power sent from boiler/wiring center and live back to boiler/ wiring center (calling for heat)

 

[Inverness]

thanks again Shaun very much appreciate your time and patience.

 

[ShaunCorbs]

thanks again Shaun very much appreciate your time and patience.

not a problem any problems you know where we are

 

[Inverness]

I've connected it to the correct wires like you said. If I override the thermostat like the old programmer it would fire the boiler up but it isn't doing it on this now?

 

[ShaunCorbs]

does it work normally tho?

 

[Inverness]

Yeah the Honeywell worked fine I only replaced it caused it looked dated. The temperature in the house ATM is 25 degree centigrade I override it to 30 the small flame appeared on the display and it should then fire the boiler up? I did read this programmer and all other thermostatic programmers that are made now have an intelligents built into it. I'm thinking because I
The house is already very warm it won't fire the boiler due to the fact that it's too warm and this must be the intelligents kicking which makes it be energy effiencency? Would I be correct?

 

[ShaunCorbs]

Yeah the Honeywell worked fine I only replaced it caused it looked dated. The temperature in the house ATM is 25 degree centigrade I override it to 30 the small flame appeared on the display and it should then fire the boiler up? I did read this programmer and all other thermostatic programmers that are made now have an intelligents built into it. I'm thinking because I
The house is already very warm it won't fire the boiler due to the fact that it's too warm and this must be the intelligents kicking which makes it be energy effiencency? Would I be correct?

you got a multi meter/ volt pen?

 

[Inverness]

I don't sorry. I've got a neon flat head. The Honeywell worked fine. What do you think it could be? Should it just override matter what the room temperature is?